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Diffstat (limited to 'source3/lib/util.c')
| -rw-r--r-- | source3/lib/util.c | 4510 |
1 files changed, 4510 insertions, 0 deletions
diff --git a/source3/lib/util.c b/source3/lib/util.c new file mode 100644 index 0000000000..7bd6298c4c --- /dev/null +++ b/source3/lib/util.c @@ -0,0 +1,4510 @@ +/* + Unix SMB/Netbios implementation. + Version 1.9. + Samba utility functions + Copyright (C) Andrew Tridgell 1992-1995 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" +#include "loadparm.h" + +pstring scope = ""; + +int DEBUGLEVEL = 1; + +BOOL passive = False; + +int Protocol = PROTOCOL_COREPLUS; + +int serverzone=0; + +/* a default finfo structure to ensure all fields are sensible */ +file_info def_finfo = {-1,0,0,0,0,0,0,""}; + +/* these are some file handles where debug info will be stored */ +FILE *dbf = NULL; + +/* the client file descriptor */ +int Client = -1; + +/* info on the client */ +struct from_host Client_info= +{"UNKNOWN","0.0.0.0",NULL}; + +/* the last IP received from */ +struct in_addr lastip; + +/* the last port received from */ +int lastport=0; + +/* my IP, the broadcast IP and the Netmask */ +struct in_addr myip; +struct in_addr bcast_ip; +struct in_addr Netmask; + +int trans_num = 0; + +/* + case handling on filenames +*/ +int case_default = CASE_LOWER; + + +/* size of reads during a direct file to file transfer */ +int ReadSize = 16*1024; + +pstring debugf = "/tmp/log.samba"; +int syslog_level; + +/* the following control case operations - they are put here so the + client can link easily */ +BOOL case_sensitive; +BOOL case_preserve; +BOOL use_mangled_map = False; +BOOL short_case_preserve; +BOOL case_mangle; + +fstring remote_machine=""; +fstring local_machine=""; +fstring remote_arch="UNKNOWN"; +fstring remote_proto="UNKNOWN"; +pstring myhostname=""; +pstring user_socket_options=""; +pstring sesssetup_user=""; + + +static char *filename_dos(char *path,char *buf); + +static BOOL stdout_logging = False; + + +/******************************************************************* + get ready for syslog stuff + ******************************************************************/ +void setup_logging(char *pname,BOOL interactive) +{ +#ifdef SYSLOG + if (!interactive) { + char *p = strrchr(pname,'/'); + if (p) pname = p+1; + openlog(pname, LOG_PID, LOG_DAEMON); + } +#endif + if (interactive) { + stdout_logging = True; + dbf = stdout; + } +} + + +BOOL append_log=False; + + +/**************************************************************************** +reopen the log files +****************************************************************************/ +void reopen_logs(void) +{ + extern FILE *dbf; + pstring fname; + + if (DEBUGLEVEL > 0) + { + strcpy(fname,debugf); + if (lp_loaded() && (*lp_logfile())) + strcpy(fname,lp_logfile()); + + if (!strcsequal(fname,debugf) || !dbf || !file_exist(debugf,NULL)) + { + strcpy(debugf,fname); + if (dbf) fclose(dbf); + if (append_log) + dbf = fopen(debugf,"a"); + else + dbf = fopen(debugf,"w"); + if (dbf) setbuf(dbf,NULL); + } + } + else + { + if (dbf) + { + fclose(dbf); + dbf = NULL; + } + } +} + + +/******************************************************************* +write an debug message on the debugfile. This is called by the DEBUG +macro +********************************************************************/ +#ifdef __STDC__ +int Debug1(char *format_str, ...) +{ +#else +int Debug1(va_alist) +va_dcl +{ + char *format_str; +#endif + va_list ap; + +#ifdef __STDC__ + va_start(ap, format_str); +#else + va_start(ap); + format_str = va_arg(ap,char *); +#endif + + if (stdout_logging) { + vfprintf(dbf,format_str,ap); + va_end(ap); + return(0); + } + + { + static int debug_count=0; + + debug_count++; + if (debug_count == 100) { + int maxlog = lp_max_log_size() * 1024; + if (dbf && maxlog > 0) + { + struct stat st; + + if (fstat(fileno(dbf),&st) == 0 && st.st_size > maxlog) { + fclose(dbf); dbf = NULL; + reopen_logs(); + if (dbf && file_size(debugf) > maxlog) { + pstring name; + fclose(dbf); dbf = NULL; + sprintf(name,"%s.old",debugf); + sys_rename(debugf,name); + reopen_logs(); + } + } + } + debug_count=0; + } + } + +#ifdef SYSLOG + if (!lp_syslog_only()) +#endif + { + if (!dbf) + { + dbf = fopen(debugf,"w"); + if (dbf) + setbuf(dbf,NULL); + else + return(0); + } + } + +#ifdef SYSLOG + if (syslog_level < lp_syslog()) + { + /* + * map debug levels to syslog() priorities + * note that not all DEBUG(0, ...) calls are + * necessarily errors + */ + static int priority_map[] = { + LOG_ERR, /* 0 */ + LOG_WARNING, /* 1 */ + LOG_NOTICE, /* 2 */ + LOG_INFO, /* 3 */ + }; + int priority; + pstring msgbuf; + + if (syslog_level >= sizeof(priority_map) / sizeof(priority_map[0]) || + syslog_level < 0) + priority = LOG_DEBUG; + else + priority = priority_map[syslog_level]; + + vsprintf(msgbuf, format_str, ap); + + msgbuf[255] = '\0'; + syslog(priority, "%s", msgbuf); + } +#endif + +#ifdef SYSLOG + if (!lp_syslog_only()) +#endif + { + vfprintf(dbf,format_str,ap); + fflush(dbf); + } + + va_end(ap); + return(0); +} + +/**************************************************************************** +routine to do file locking +****************************************************************************/ +BOOL fcntl_lock(int fd,int op,uint32 offset,uint32 count,int type) +{ +#if HAVE_FCNTL_LOCK + struct flock lock; + int ret; + +#if 1 + uint32 mask = 0xC0000000; + + /* make sure the count is reasonable, we might kill the lockd otherwise */ + count &= ~mask; + + /* the offset is often strange - remove 2 of its bits if either of + the top two bits are set. Shift the top ones by two bits. This + still allows OLE2 apps to operate, but should stop lockd from + dieing */ + if ((offset & mask) != 0) + offset = (offset & ~mask) | ((offset & mask) >> 2); +#else + unsigned long mask = ((unsigned)1<<31); + + /* interpret negative counts as large numbers */ + if (count < 0) + count &= ~mask; + + /* no negative offsets */ + offset &= ~mask; + + /* count + offset must be in range */ + while ((offset < 0 || (offset + count < 0)) && mask) + { + offset &= ~mask; + mask = mask >> 1; + } +#endif + + + DEBUG(5,("fcntl_lock %d %d %d %d %d\n",fd,op,(int)offset,(int)count,type)); + + lock.l_type = type; + lock.l_whence = SEEK_SET; + lock.l_start = (int)offset; + lock.l_len = (int)count; + lock.l_pid = 0; + + errno = 0; + + ret = fcntl(fd,op,&lock); + + if (errno != 0) + DEBUG(3,("fcntl lock gave errno %d (%s)\n",errno,strerror(errno))); + + /* a lock query */ + if (op == F_GETLK) + { + if ((ret != -1) && + (lock.l_type != F_UNLCK) && + (lock.l_pid != 0) && + (lock.l_pid != getpid())) + { + DEBUG(3,("fd %d is locked by pid %d\n",fd,lock.l_pid)); + return(True); + } + + /* it must be not locked or locked by me */ + return(False); + } + + /* a lock set or unset */ + if (ret == -1) + { + DEBUG(3,("lock failed at offset %d count %d op %d type %d (%s)\n", + offset,count,op,type,strerror(errno))); + + /* perhaps it doesn't support this sort of locking?? */ + if (errno == EINVAL) + { + DEBUG(3,("locking not supported? returning True\n")); + return(True); + } + + return(False); + } + + /* everything went OK */ + DEBUG(5,("Lock call successful\n")); + + return(True); +#else + return(False); +#endif +} + +/******************************************************************* +lock a file - returning a open file descriptor or -1 on failure +The timeout is in seconds. 0 means no timeout +********************************************************************/ +int file_lock(char *name,int timeout) +{ + int fd = open(name,O_RDWR|O_CREAT,0666); + time_t t=0; + if (fd < 0) return(-1); + +#if HAVE_FCNTL_LOCK + if (timeout) t = time(NULL); + while (!timeout || (time(NULL)-t < timeout)) { + if (fcntl_lock(fd,F_SETLK,0,1,F_WRLCK)) return(fd); + msleep(LOCK_RETRY_TIMEOUT); + } + return(-1); +#else + return(fd); +#endif +} + +/******************************************************************* +unlock a file locked by file_lock +********************************************************************/ +void file_unlock(int fd) +{ + if (fd<0) return; +#if HAVE_FCNTL_LOCK + fcntl_lock(fd,F_SETLK,0,1,F_UNLCK); +#endif + close(fd); +} + +/******************************************************************* +a gettimeofday wrapper +********************************************************************/ +void GetTimeOfDay(struct timeval *tval) +{ +#ifdef GETTIMEOFDAY1 + gettimeofday(tval); +#else + gettimeofday(tval,NULL); +#endif +} + +int extra_time_offset = 0; + +static int timediff = 0; + +/******************************************************************* +init the time differences +********************************************************************/ +void TimeInit(void) +{ + struct tm tm_utc,tm_local; + time_t t; + + t = time(NULL); + + tm_utc = *(gmtime(&t)); + tm_local = *(localtime(&t)); + +#ifdef HAVE_GMTOFF + timediff = -tm_local.tm_gmtoff; +#else + timediff = mktime(&tm_utc) - mktime(&tm_local); +#endif + + if (serverzone == 0) { + serverzone = timediff - DSTDiff(t); + DEBUG(4,("Serverzone is %d\n",serverzone)); + } +} + + +/******************************************************************* +return the DST offset for a particular time +We keep a table of DST offsets to prevent calling localtime() on each +call of this function. This saves a LOT of time on many unixes. +********************************************************************/ +int DSTDiff(time_t t) +{ + static struct dst_table {time_t start,end; BOOL is_dst;} *dst_table = NULL; + static int table_size = 0; + int i; + BOOL is_dst = False; + + if (t == 0) t = time(NULL); + +#ifndef NO_ISDST + for (i=0;i<table_size;i++) + if (t >= dst_table[i].start && t <= dst_table[i].end) break; + + if (i<table_size) { + is_dst = dst_table[i].is_dst; + } else { + time_t low,high; + + dst_table = (struct dst_table *)Realloc(dst_table, + sizeof(dst_table[0])*(i+1)); + if (!dst_table) { + table_size = 0; + return(0); + } + + table_size++; + + dst_table[i].is_dst = is_dst = (localtime(&t)->tm_isdst?True:False);; + dst_table[i].start = dst_table[i].end = t; + + /* no entry will cover more than 6 months */ + low = t - 3*30*24*60*60; + high = t + 3*30*24*60*60; + + /* widen the new entry using two bisection searches */ + while (low+60*60 < dst_table[i].start) { + t = low + (dst_table[i].start-low)/2; + if ((localtime(&t)->tm_isdst?True:False) == is_dst) + dst_table[i].start = t; + else + low = t; + } + + while (high-60*60 > dst_table[i].end) { + t = high + (high-dst_table[i].end)/2; + if ((localtime(&t)->tm_isdst?True:False) == is_dst) + dst_table[i].end = t; + else + high = t; + } + +/* + DEBUG(1,("Added DST entry from %s ", + asctime(localtime(&dst_table[i].start)))); + DEBUG(1,("to %s (%d)\n",asctime(localtime(&dst_table[i].end)), + dst_table[i].is_dst)); +*/ + } +#endif + + return((is_dst?60*60:0) - (extra_time_offset*60)); +} + +/**************************************************************************** +return the difference between local and GMT time +****************************************************************************/ +int TimeDiff(time_t t) +{ + static BOOL initialised = False; + if (!initialised) {initialised=True; TimeInit();} + return(timediff - DSTDiff(t)); +} + +/**************************************************************************** +try to optimise the localtime call, it can be quite expenive on some machines +timemul is normally LOCAL_TO_GMT, GMT_TO_LOCAL or 0 +****************************************************************************/ +struct tm *LocalTime(time_t *t,int timemul) +{ + time_t t2 = *t; + + if (timemul) + t2 += timemul * TimeDiff(t2); + + return(gmtime(&t2)); +} + + +/**************************************************************************** +determine if a file descriptor is in fact a socket +****************************************************************************/ +BOOL is_a_socket(int fd) +{ + int v,l; + l = sizeof(int); + return(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&v, &l) == 0); +} + + +static char *last_ptr=NULL; + +/**************************************************************************** + Get the next token from a string, return False if none found + handles double-quotes. +Based on a routine by GJC@VILLAGE.COM. +Extensively modified by Andrew.Tridgell@anu.edu.au +****************************************************************************/ +BOOL next_token(char **ptr,char *buff,char *sep) +{ + char *s; + BOOL quoted; + + if (!ptr) ptr = &last_ptr; + if (!ptr) return(False); + + s = *ptr; + + /* default to simple separators */ + if (!sep) sep = " \t\n\r"; + + /* find the first non sep char */ + while(*s && strchr(sep,*s)) s++; + + /* nothing left? */ + if (! *s) return(False); + + /* copy over the token */ + for (quoted = False; *s && (quoted || !strchr(sep,*s)); s++) + { + if (*s == '\"') + quoted = !quoted; + else + *buff++ = *s; + } + + *ptr = (*s) ? s+1 : s; + *buff = 0; + last_ptr = *ptr; + + return(True); +} + +/**************************************************************************** +Convert list of tokens to array; dependent on above routine. +Uses last_ptr from above - bit of a hack. +****************************************************************************/ +char **toktocliplist(int *ctok, char *sep) +{ + char *s=last_ptr; + int ictok=0; + char **ret, **iret; + + if (!sep) sep = " \t\n\r"; + + while(*s && strchr(sep,*s)) s++; + + /* nothing left? */ + if (!*s) return(NULL); + + do { + ictok++; + while(*s && (!strchr(sep,*s))) s++; + while(*s && strchr(sep,*s)) *s++=0; + } while(*s); + + *ctok=ictok; + s=last_ptr; + + if (!(ret=iret=malloc(ictok*sizeof(char *)))) return NULL; + + while(ictok--) { + *iret++=s; + while(*s++); + while(!*s) s++; + } + + return ret; +} + +#ifndef HAVE_MEMMOVE +/******************************************************************* +safely copies memory, ensuring no overlap problems. +this is only used if the machine does not have it's own memmove(). +this is not the fastest algorithm in town, but it will do for our +needs. +********************************************************************/ +void *MemMove(void *dest,void *src,int size) +{ + unsigned long d,s; + int i; + if (dest==src || !size) return(dest); + + d = (unsigned long)dest; + s = (unsigned long)src; + + if ((d >= (s+size)) || (s >= (d+size))) { + /* no overlap */ + memcpy(dest,src,size); + return(dest); + } + + if (d < s) + { + /* we can forward copy */ + if (s-d >= sizeof(int) && + !(s%sizeof(int)) && !(d%sizeof(int)) && !(size%sizeof(int))) { + /* do it all as words */ + int *idest = (int *)dest; + int *isrc = (int *)src; + size /= sizeof(int); + for (i=0;i<size;i++) idest[i] = isrc[i]; + } else { + /* simplest */ + char *cdest = (char *)dest; + char *csrc = (char *)src; + for (i=0;i<size;i++) cdest[i] = csrc[i]; + } + } + else + { + /* must backward copy */ + if (d-s >= sizeof(int) && + !(s%sizeof(int)) && !(d%sizeof(int)) && !(size%sizeof(int))) { + /* do it all as words */ + int *idest = (int *)dest; + int *isrc = (int *)src; + size /= sizeof(int); + for (i=size-1;i>=0;i--) idest[i] = isrc[i]; + } else { + /* simplest */ + char *cdest = (char *)dest; + char *csrc = (char *)src; + for (i=size-1;i>=0;i--) cdest[i] = csrc[i]; + } + } + return(dest); +} +#endif + + +/**************************************************************************** +prompte a dptr (to make it recently used) +****************************************************************************/ +void array_promote(char *array,int elsize,int element) +{ + char *p; + if (element == 0) + return; + + p = (char *)malloc(elsize); + + if (!p) + { + DEBUG(5,("Ahh! Can't malloc\n")); + return; + } + memcpy(p,array + element * elsize, elsize); + memmove(array + elsize,array,elsize*element); + memcpy(array,p,elsize); + free(p); +} + +enum SOCK_OPT_TYPES {OPT_BOOL,OPT_INT,OPT_ON}; + +struct +{ + char *name; + int level; + int option; + int value; + int opttype; +} socket_options[] = { + {"SO_KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE, 0, OPT_BOOL}, + {"SO_REUSEADDR", SOL_SOCKET, SO_REUSEADDR, 0, OPT_BOOL}, + {"SO_BROADCAST", SOL_SOCKET, SO_BROADCAST, 0, OPT_BOOL}, +#ifdef TCP_NODELAY + {"TCP_NODELAY", IPPROTO_TCP, TCP_NODELAY, 0, OPT_BOOL}, +#endif +#ifdef IPTOS_LOWDELAY + {"IPTOS_LOWDELAY", IPPROTO_IP, IP_TOS, IPTOS_LOWDELAY, OPT_ON}, +#endif +#ifdef IPTOS_THROUGHPUT + {"IPTOS_THROUGHPUT", IPPROTO_IP, IP_TOS, IPTOS_THROUGHPUT, OPT_ON}, +#endif +#ifdef SO_SNDBUF + {"SO_SNDBUF", SOL_SOCKET, SO_SNDBUF, 0, OPT_INT}, +#endif +#ifdef SO_RCVBUF + {"SO_RCVBUF", SOL_SOCKET, SO_RCVBUF, 0, OPT_INT}, +#endif +#ifdef SO_SNDLOWAT + {"SO_SNDLOWAT", SOL_SOCKET, SO_SNDLOWAT, 0, OPT_INT}, +#endif +#ifdef SO_RCVLOWAT + {"SO_RCVLOWAT", SOL_SOCKET, SO_RCVLOWAT, 0, OPT_INT}, +#endif + {NULL,0,0,0,0}}; + + + +/**************************************************************************** +set user socket options +****************************************************************************/ +void set_socket_options(int fd, char *options) +{ + string tok; + + while (next_token(&options,tok," \t,")) + { + int ret=0,i; + int value = 1; + char *p; + BOOL got_value = False; + + if ((p = strchr(tok,'='))) + { + *p = 0; + value = atoi(p+1); + got_value = True; + } + + for (i=0;socket_options[i].name;i++) + if (strequal(socket_options[i].name,tok)) + break; + + if (!socket_options[i].name) + { + DEBUG(0,("Unknown socket option %s\n",tok)); + continue; + } + + switch (socket_options[i].opttype) + { + case OPT_BOOL: + case OPT_INT: + ret = setsockopt(fd,socket_options[i].level, + socket_options[i].option,(char *)&value,sizeof(int)); + break; + + case OPT_ON: + if (got_value) + DEBUG(0,("syntax error - %s does not take a value\n",tok)); + + { + int on = socket_options[i].value; + ret = setsockopt(fd,socket_options[i].level, + socket_options[i].option,(char *)&on,sizeof(int)); + } + break; + } + + if (ret != 0) + DEBUG(0,("Failed to set socket option %s\n",tok)); + } +} + + + +/**************************************************************************** + close the socket communication +****************************************************************************/ +void close_sockets(void ) +{ + close(Client); + Client = 0; +} + +/**************************************************************************** + return the date and time as a string +****************************************************************************/ +char *timestring(void ) +{ + static char TimeBuf[100]; + time_t t; + t = time(NULL); +#ifdef NO_STRFTIME + strcpy(TimeBuf, asctime(LocalTime(&t,GMT_TO_LOCAL))); +#elif defined(CLIX) || defined(CONVEX) + strftime(TimeBuf,100,"%m/%d/%y %I:%M:%S %p",LocalTime(&t,GMT_TO_LOCAL)); +#elif defined(AMPM) + strftime(TimeBuf,100,"%D %r",LocalTime(&t,GMT_TO_LOCAL)); +#elif defined(TZ_TIME) + { + strftime(TimeBuf,100,"%D:%T",LocalTime(&t,0)); + sprintf(TimeBuf+strlen(TimeBuf)," %+03d%02d", + -TimeDiff(t)/(60*60),-(TimeDiff(t)/60)%60); + } +#else + strftime(TimeBuf,100,"%D %T",LocalTime(&t,GMT_TO_LOCAL)); +#endif + return(TimeBuf); +} + +/**************************************************************************** +determine whether we are in the specified group +****************************************************************************/ +BOOL in_group(gid_t group, int current_gid, int ngroups, int *groups) +{ + int i; + + if (group == current_gid) return(True); + + for (i=0;i<ngroups;i++) + if (group == groups[i]) + return(True); + + return(False); +} + +/**************************************************************************** +this is a safer strcpy(), meant to prevent core dumps when nasty things happen +****************************************************************************/ +char *StrCpy(char *dest,char *src) +{ + char *d = dest; + +#if AJT + /* I don't want to get lazy with these ... */ + if (!dest || !src) { + DEBUG(0,("ERROR: NULL StrCpy() called!\n")); + ajt_panic(); + } +#endif + + if (!dest) return(NULL); + if (!src) { + *dest = 0; + return(dest); + } + while ((*d++ = *src++)) ; + return(dest); +} + +/**************************************************************************** +line strncpy but always null terminates. Make sure there is room! +****************************************************************************/ +char *StrnCpy(char *dest,const char *src,int n) +{ + char *d = dest; + if (!dest) return(NULL); + if (!src) { + *dest = 0; + return(dest); + } + while (n-- && (*d++ = *src++)) ; + *d = 0; + return(dest); +} + + +/******************************************************************* +copy an IP address from one buffer to another +********************************************************************/ +void putip(void *dest,void *src) +{ + memcpy(dest,src,4); +} + + +/**************************************************************************** +interpret the weird netbios "name". Return the name type +****************************************************************************/ +static int name_interpret(char *in,char *out) +{ + int ret; + int len = (*in++) / 2; + + *out=0; + + if (len > 30 || len<1) return(0); + + while (len--) + { + if (in[0] < 'A' || in[0] > 'P' || in[1] < 'A' || in[1] > 'P') { + *out = 0; + return(0); + } + *out = ((in[0]-'A')<<4) + (in[1]-'A'); + in += 2; + out++; + } + *out = 0; + ret = out[-1]; + +#ifdef NETBIOS_SCOPE + /* Handle any scope names */ + while(*in) + { + *out++ = '.'; /* Scope names are separated by periods */ + len = *(unsigned char *)in++; + StrnCpy(out, in, len); + out += len; + *out=0; + in += len; + } +#endif + return(ret); +} + +/**************************************************************************** +mangle a name into netbios format +****************************************************************************/ +int name_mangle(char *In,char *Out,char name_type) +{ + fstring name; + char buf[20]; + char *in = (char *)&buf[0]; + char *out = (char *)Out; + char *p, *label; + int i; + + if (In[0] != '*') { + StrnCpy(name,In,sizeof(name)-1); + sprintf(buf,"%-15.15s%c",name,name_type); + } else { + buf[0]='*'; + memset(&buf[1],0,16); + } + + *out++ = 32; + for (i=0;i<16;i++) { + char c = toupper(in[i]); + out[i*2] = (c>>4) + 'A'; + out[i*2+1] = (c & 0xF) + 'A'; + } + out[32]=0; + out += 32; + + label = scope; + while (*label) + { + p = strchr(label, '.'); + if (p == 0) + p = label + strlen(label); + *out++ = p - label; + memcpy(out, label, p - label); + out += p - label; + label += p - label + (*p == '.'); + } + *out = 0; + return(name_len(Out)); +} + + +/******************************************************************* + check if a file exists +********************************************************************/ +BOOL file_exist(char *fname,struct stat *sbuf) +{ + struct stat st; + if (!sbuf) sbuf = &st; + + if (sys_stat(fname,sbuf) != 0) + return(False); + + return(S_ISREG(sbuf->st_mode)); +} + +/******************************************************************* +check a files mod time +********************************************************************/ +time_t file_modtime(char *fname) +{ + struct stat st; + + if (sys_stat(fname,&st) != 0) + return(0); + + return(st.st_mtime); +} + +/******************************************************************* + check if a directory exists +********************************************************************/ +BOOL directory_exist(char *dname,struct stat *st) +{ + struct stat st2; + if (!st) st = &st2; + + if (sys_stat(dname,st) != 0) + return(False); + + return(S_ISDIR(st->st_mode)); +} + +/******************************************************************* +returns the size in bytes of the named file +********************************************************************/ +uint32 file_size(char *file_name) +{ + struct stat buf; + buf.st_size = 0; + sys_stat(file_name,&buf); + return(buf.st_size); +} + +/**************************************************************************** +check if it's a null mtime +****************************************************************************/ +static BOOL null_mtime(time_t mtime) +{ + if (mtime == 0 || mtime == 0xFFFFFFFF) + return(True); + return(False); +} + +/******************************************************************* + create a 16 bit dos packed date +********************************************************************/ +static uint16 make_dos_date1(time_t unixdate,struct tm *t) +{ + uint16 ret=0; + ret = (((unsigned)(t->tm_mon+1)) >> 3) | ((t->tm_year-80) << 1); + ret = ((ret&0xFF)<<8) | (t->tm_mday | (((t->tm_mon+1) & 0x7) << 5)); + return(ret); +} + +/******************************************************************* + create a 16 bit dos packed time +********************************************************************/ +static uint16 make_dos_time1(time_t unixdate,struct tm *t) +{ + uint16 ret=0; + ret = ((((unsigned)t->tm_min >> 3)&0x7) | (((unsigned)t->tm_hour) << 3)); + ret = ((ret&0xFF)<<8) | ((t->tm_sec/2) | ((t->tm_min & 0x7) << 5)); + return(ret); +} + +/******************************************************************* + create a 32 bit dos packed date/time from some parameters + This takes a GMT time and returns a packed localtime structure +********************************************************************/ +static uint32 make_dos_date(time_t unixdate) +{ + struct tm *t; + uint32 ret=0; + + t = LocalTime(&unixdate,GMT_TO_LOCAL); + + ret = make_dos_date1(unixdate,t); + ret = ((ret&0xFFFF)<<16) | make_dos_time1(unixdate,t); + + return(ret); +} + +/******************************************************************* +put a dos date into a buffer (time/date format) +This takes GMT time and puts local time in the buffer +********************************************************************/ +void put_dos_date(char *buf,int offset,time_t unixdate) +{ + uint32 x = make_dos_date(unixdate); + SIVAL(buf,offset,x); +} + +/******************************************************************* +put a dos date into a buffer (date/time format) +This takes GMT time and puts local time in the buffer +********************************************************************/ +void put_dos_date2(char *buf,int offset,time_t unixdate) +{ + uint32 x = make_dos_date(unixdate); + x = ((x&0xFFFF)<<16) | ((x&0xFFFF0000)>>16); + SIVAL(buf,offset,x); +} + +/******************************************************************* +put a dos 32 bit "unix like" date into a buffer. This routine takes +GMT and converts it to LOCAL time before putting it (most SMBs assume +localtime for this sort of date) +********************************************************************/ +void put_dos_date3(char *buf,int offset,time_t unixdate) +{ + if (!null_mtime(unixdate)) + unixdate += GMT_TO_LOCAL*TimeDiff(unixdate); + SIVAL(buf,offset,unixdate); +} + +/******************************************************************* + interpret a 32 bit dos packed date/time to some parameters +********************************************************************/ +static void interpret_dos_date(uint32 date,int *year,int *month,int *day,int *hour,int *minute,int *second) +{ + uint32 p0,p1,p2,p3; + + p0=date&0xFF; p1=((date&0xFF00)>>8)&0xFF; + p2=((date&0xFF0000)>>16)&0xFF; p3=((date&0xFF000000)>>24)&0xFF; + + *second = 2*(p0 & 0x1F); + *minute = ((p0>>5)&0xFF) + ((p1&0x7)<<3); + *hour = (p1>>3)&0xFF; + *day = (p2&0x1F); + *month = ((p2>>5)&0xFF) + ((p3&0x1)<<3) - 1; + *year = ((p3>>1)&0xFF) + 80; +} + +/******************************************************************* + create a unix date (int GMT) from a dos date (which is actually in + localtime) +********************************************************************/ +time_t make_unix_date(void *date_ptr) +{ + uint32 dos_date=0; + struct tm t; + time_t ret; + + dos_date = IVAL(date_ptr,0); + + if (dos_date == 0) return(0); + + interpret_dos_date(dos_date,&t.tm_year,&t.tm_mon, + &t.tm_mday,&t.tm_hour,&t.tm_min,&t.tm_sec); + t.tm_wday = 1; + t.tm_yday = 1; + t.tm_isdst = -1; + + /* mktime() also does the local to GMT time conversion for us. XXXXX + Do all unixes do this the same?? */ + ret = mktime(&t); + + return(ret); +} + +/******************************************************************* +like make_unix_date() but the words are reversed +********************************************************************/ +time_t make_unix_date2(void *date_ptr) +{ + uint32 x,x2; + + x = IVAL(date_ptr,0); + x2 = ((x&0xFFFF)<<16) | ((x&0xFFFF0000)>>16); + SIVAL(&x,0,x2); + + return(make_unix_date((void *)&x)); +} + +/******************************************************************* + create a unix GMT date from a dos date in 32 bit "unix like" format +these generally arrive as localtimes, with corresponding DST +********************************************************************/ +time_t make_unix_date3(void *date_ptr) +{ + time_t t = IVAL(date_ptr,0); + if (!null_mtime(t)) + t += LOCAL_TO_GMT*TimeDiff(t); + return(t); +} + +/******************************************************************* +return a string representing an attribute for a file +********************************************************************/ +char *attrib_string(int mode) +{ + static char attrstr[10]; + + attrstr[0] = 0; + + if (mode & aVOLID) strcat(attrstr,"V"); + if (mode & aDIR) strcat(attrstr,"D"); + if (mode & aARCH) strcat(attrstr,"A"); + if (mode & aHIDDEN) strcat(attrstr,"H"); + if (mode & aSYSTEM) strcat(attrstr,"S"); + if (mode & aRONLY) strcat(attrstr,"R"); + + return(attrstr); +} + + +/******************************************************************* + case insensitive string compararison +********************************************************************/ +int StrCaseCmp(char *s, char *t) +{ + for (; tolower(*s) == tolower(*t); ++s, ++t) + if (!*s) return 0; + + return tolower(*s) - tolower(*t); +} + +/******************************************************************* + case insensitive string compararison, length limited +********************************************************************/ +int StrnCaseCmp(char *s, char *t, int n) +{ + while (n-- && *s && *t) { + if (tolower(*s) != tolower(*t)) return(tolower(*s) - tolower(*t)); + s++; t++; + } + if (n) return(tolower(*s) - tolower(*t)); + + return(0); +} + +/******************************************************************* + compare 2 strings +********************************************************************/ +BOOL strequal(char *s1,char *s2) +{ + if (s1 == s2) return(True); + if (!s1 || !s2) return(False); + + return(StrCaseCmp(s1,s2)==0); +} + +/******************************************************************* + compare 2 strings up to and including the nth char. + ******************************************************************/ +BOOL strnequal(char *s1,char *s2,int n) +{ + if (s1 == s2) return(True); + if (!s1 || !s2 || !n) return(False); + + return(StrnCaseCmp(s1,s2,n)==0); +} + +/******************************************************************* + compare 2 strings (case sensitive) +********************************************************************/ +BOOL strcsequal(char *s1,char *s2) +{ + if (s1 == s2) return(True); + if (!s1 || !s2) return(False); + + return(strcmp(s1,s2)==0); +} + + +/******************************************************************* + convert a string to lower case +********************************************************************/ +void strlower(char *s) +{ + while (*s) + { +#ifdef KANJI + if (is_shift_jis (*s)) { + s += 2; + } else if (is_kana (*s)) { + s++; + } else { + if (isupper(*s)) + *s = tolower(*s); + s++; + } +#else + if (isupper(*s)) + *s = tolower(*s); + s++; +#endif /* KANJI */ + } +} + +/******************************************************************* + convert a string to upper case +********************************************************************/ +void strupper(char *s) +{ + while (*s) + { +#ifdef KANJI + if (is_shift_jis (*s)) { + s += 2; + } else if (is_kana (*s)) { + s++; + } else { + if (islower(*s)) + *s = toupper(*s); + s++; + } +#else + if (islower(*s)) + *s = toupper(*s); + s++; +#endif + } +} + +/******************************************************************* + convert a string to "normal" form +********************************************************************/ +void strnorm(char *s) +{ + if (case_default == CASE_UPPER) + strupper(s); + else + strlower(s); +} + +/******************************************************************* +check if a string is in "normal" case +********************************************************************/ +BOOL strisnormal(char *s) +{ + if (case_default == CASE_UPPER) + return(!strhaslower(s)); + + return(!strhasupper(s)); +} + + +/**************************************************************************** + string replace +****************************************************************************/ +void string_replace(char *s,char oldc,char newc) +{ + while (*s) + { +#ifdef KANJI + if (is_shift_jis (*s)) { + s += 2; + } else if (is_kana (*s)) { + s++; + } else { + if (oldc == *s) + *s = newc; + s++; + } +#else + if (oldc == *s) + *s = newc; + s++; +#endif /* KANJI */ + } +} + +/**************************************************************************** + make a file into unix format +****************************************************************************/ +void unix_format(char *fname) +{ + pstring namecopy; + string_replace(fname,'\\','/'); +#ifndef KANJI + dos2unix_format(fname, True); +#endif /* KANJI */ + + if (*fname == '/') + { + strcpy(namecopy,fname); + strcpy(fname,"."); + strcat(fname,namecopy); + } +} + +/**************************************************************************** + make a file into dos format +****************************************************************************/ +void dos_format(char *fname) +{ +#ifndef KANJI + unix2dos_format(fname, True); +#endif /* KANJI */ + string_replace(fname,'/','\\'); +} + + +/******************************************************************* + show a smb message structure +********************************************************************/ +void show_msg(char *buf) +{ + int i; + int bcc=0; + if (DEBUGLEVEL < 5) + return; + + DEBUG(5,("size=%d\nsmb_com=0x%x\nsmb_rcls=%d\nsmb_reh=%d\nsmb_err=%d\nsmb_flg=%d\nsmb_flg2=%d\n", + smb_len(buf), + (int)CVAL(buf,smb_com), + (int)CVAL(buf,smb_rcls), + (int)CVAL(buf,smb_reh), + (int)SVAL(buf,smb_err), + (int)CVAL(buf,smb_flg), + (int)SVAL(buf,smb_flg2))); + DEBUG(5,("smb_tid=%d\nsmb_pid=%d\nsmb_uid=%d\nsmb_mid=%d\nsmt_wct=%d\n", + (int)SVAL(buf,smb_tid), + (int)SVAL(buf,smb_pid), + (int)SVAL(buf,smb_uid), + (int)SVAL(buf,smb_mid), + (int)CVAL(buf,smb_wct))); + for (i=0;i<(int)CVAL(buf,smb_wct);i++) + DEBUG(5,("smb_vwv[%d]=%d (0x%X)\n",i, + SVAL(buf,smb_vwv+2*i),SVAL(buf,smb_vwv+2*i))); + bcc = (int)SVAL(buf,smb_vwv+2*(CVAL(buf,smb_wct))); + DEBUG(5,("smb_bcc=%d\n",bcc)); + if (DEBUGLEVEL < 10) + return; + for (i=0;i<MIN(bcc,128);i++) + DEBUG(10,("%X ",CVAL(smb_buf(buf),i))); + DEBUG(10,("\n")); +} + +/******************************************************************* + return the length of an smb packet +********************************************************************/ +int smb_len(char *buf) +{ + return( PVAL(buf,3) | (PVAL(buf,2)<<8) | ((PVAL(buf,1)&1)<<16) ); +} + +/******************************************************************* + set the length of an smb packet +********************************************************************/ +void _smb_setlen(char *buf,int len) +{ + buf[0] = 0; + buf[1] = (len&0x10000)>>16; + buf[2] = (len&0xFF00)>>8; + buf[3] = len&0xFF; +} + +/******************************************************************* + set the length and marker of an smb packet +********************************************************************/ +void smb_setlen(char *buf,int len) +{ + _smb_setlen(buf,len); + + CVAL(buf,4) = 0xFF; + CVAL(buf,5) = 'S'; + CVAL(buf,6) = 'M'; + CVAL(buf,7) = 'B'; +} + +/******************************************************************* + setup the word count and byte count for a smb message +********************************************************************/ +int set_message(char *buf,int num_words,int num_bytes,BOOL zero) +{ + if (zero) + bzero(buf + smb_size,num_words*2 + num_bytes); + CVAL(buf,smb_wct) = num_words; + SSVAL(buf,smb_vwv + num_words*SIZEOFWORD,num_bytes); + smb_setlen(buf,smb_size + num_words*2 + num_bytes - 4); + return (smb_size + num_words*2 + num_bytes); +} + +/******************************************************************* +return the number of smb words +********************************************************************/ +int smb_numwords(char *buf) +{ + return (CVAL(buf,smb_wct)); +} + +/******************************************************************* +return the size of the smb_buf region of a message +********************************************************************/ +int smb_buflen(char *buf) +{ + return(SVAL(buf,smb_vwv0 + smb_numwords(buf)*2)); +} + +/******************************************************************* + return a pointer to the smb_buf data area +********************************************************************/ +int smb_buf_ofs(char *buf) +{ + return (smb_size + CVAL(buf,smb_wct)*2); +} + +/******************************************************************* + return a pointer to the smb_buf data area +********************************************************************/ +char *smb_buf(char *buf) +{ + return (buf + smb_buf_ofs(buf)); +} + +/******************************************************************* +return the SMB offset into an SMB buffer +********************************************************************/ +int smb_offset(char *p,char *buf) +{ + return(PTR_DIFF(p,buf+4)); +} + + +/******************************************************************* +skip past some strings in a buffer +********************************************************************/ +char *skip_string(char *buf,int n) +{ + while (n--) + buf += strlen(buf) + 1; + return(buf); +} + +/******************************************************************* +trim the specified elements off the front and back of a string +********************************************************************/ +BOOL trim_string(char *s,char *front,char *back) +{ + BOOL ret = False; + while (front && *front && strncmp(s,front,strlen(front)) == 0) + { + char *p = s; + ret = True; + while (1) + { + if (!(*p = p[strlen(front)])) + break; + p++; + } + } + while (back && *back && strlen(s) >= strlen(back) && + (strncmp(s+strlen(s)-strlen(back),back,strlen(back))==0)) + { + ret = True; + s[strlen(s)-strlen(back)] = 0; + } + return(ret); +} + + +/******************************************************************* +reduce a file name, removing .. elements. +********************************************************************/ +void dos_clean_name(char *s) +{ + char *p=NULL; + + DEBUG(3,("dos_clean_name [%s]\n",s)); + + /* remove any double slashes */ + string_sub(s, "\\\\", "\\"); + + while ((p = strstr(s,"\\..\\")) != NULL) + { + pstring s1; + + *p = 0; + strcpy(s1,p+3); + + if ((p=strrchr(s,'\\')) != NULL) + *p = 0; + else + *s = 0; + strcat(s,s1); + } + + trim_string(s,NULL,"\\.."); + + string_sub(s, "\\.\\", "\\"); +} + +/******************************************************************* +reduce a file name, removing .. elements. +********************************************************************/ +void unix_clean_name(char *s) +{ + char *p=NULL; + + DEBUG(3,("unix_clean_name [%s]\n",s)); + + /* remove any double slashes */ + string_sub(s, "//","/"); + + while ((p = strstr(s,"/../")) != NULL) + { + pstring s1; + + *p = 0; + strcpy(s1,p+3); + + if ((p=strrchr(s,'/')) != NULL) + *p = 0; + else + *s = 0; + strcat(s,s1); + } + + trim_string(s,NULL,"/.."); +} + + +/******************************************************************* +a wrapper for the normal chdir() function +********************************************************************/ +int ChDir(char *path) +{ + int res; + static pstring LastDir=""; + + if (strcsequal(path,".")) return(0); + + if (*path == '/' && strcsequal(LastDir,path)) return(0); + DEBUG(3,("chdir to %s\n",path)); + res = sys_chdir(path); + if (!res) + strcpy(LastDir,path); + return(res); +} + + +/******************************************************************* + return the absolute current directory path. A dumb version. +********************************************************************/ +static char *Dumb_GetWd(char *s) +{ +#ifdef USE_GETCWD + return ((char *)getcwd(s,sizeof(pstring))); +#else + return ((char *)getwd(s)); +#endif +} + + +/* number of list structures for a caching GetWd function. */ +#define MAX_GETWDCACHE (50) + +struct +{ + ino_t inode; + dev_t dev; + char *text; + BOOL valid; +} ino_list[MAX_GETWDCACHE]; + +BOOL use_getwd_cache=True; + +/******************************************************************* + return the absolute current directory path +********************************************************************/ +char *GetWd(char *str) +{ + pstring s; + static BOOL getwd_cache_init = False; + struct stat st, st2; + int i; + + *s = 0; + + if (!use_getwd_cache) + return(Dumb_GetWd(str)); + + /* init the cache */ + if (!getwd_cache_init) + { + getwd_cache_init = True; + for (i=0;i<MAX_GETWDCACHE;i++) + { + string_init(&ino_list[i].text,""); + ino_list[i].valid = False; + } + } + + /* Get the inode of the current directory, if this doesn't work we're + in trouble :-) */ + + if (stat(".",&st) == -1) + { + DEBUG(0,("Very strange, couldn't stat \".\"\n")); + return(Dumb_GetWd(str)); + } + + + for (i=0; i<MAX_GETWDCACHE; i++) + if (ino_list[i].valid) + { + + /* If we have found an entry with a matching inode and dev number + then find the inode number for the directory in the cached string. + If this agrees with that returned by the stat for the current + directory then all is o.k. (but make sure it is a directory all + the same...) */ + + if (st.st_ino == ino_list[i].inode && + st.st_dev == ino_list[i].dev) + { + if (stat(ino_list[i].text,&st2) == 0) + { + if (st.st_ino == st2.st_ino && + st.st_dev == st2.st_dev && + (st2.st_mode & S_IFMT) == S_IFDIR) + { + strcpy (str, ino_list[i].text); + + /* promote it for future use */ + array_promote((char *)&ino_list[0],sizeof(ino_list[0]),i); + return (str); + } + else + { + /* If the inode is different then something's changed, + scrub the entry and start from scratch. */ + ino_list[i].valid = False; + } + } + } + } + + + /* We don't have the information to hand so rely on traditional methods. + The very slow getcwd, which spawns a process on some systems, or the + not quite so bad getwd. */ + + if (!Dumb_GetWd(s)) + { + DEBUG(0,("Getwd failed, errno %d\n",errno)); + return (NULL); + } + + strcpy(str,s); + + DEBUG(5,("GetWd %s, inode %d, dev %x\n",s,(int)st.st_ino,(int)st.st_dev)); + + /* add it to the cache */ + i = MAX_GETWDCACHE - 1; + string_set(&ino_list[i].text,s); + ino_list[i].dev = st.st_dev; + ino_list[i].inode = st.st_ino; + ino_list[i].valid = True; + + /* put it at the top of the list */ + array_promote((char *)&ino_list[0],sizeof(ino_list[0]),i); + + return (str); +} + + + +/******************************************************************* +reduce a file name, removing .. elements and checking that +it is below dir in the heirachy. This uses GetWd() and so must be run +on the system that has the referenced file system. + +widelinks are allowed if widelinks is true +********************************************************************/ +BOOL reduce_name(char *s,char *dir,BOOL widelinks) +{ +#ifndef REDUCE_PATHS + return True; +#else + pstring dir2; + pstring wd; + pstring basename; + pstring newname; + char *p=NULL; + BOOL relative = (*s != '/'); + + *dir2 = *wd = *basename = *newname = 0; + + if (widelinks) + { + unix_clean_name(s); + /* can't have a leading .. */ + if (strncmp(s,"..",2) == 0 && (s[2]==0 || s[2]=='/')) + { + DEBUG(3,("Illegal file name? (%s)\n",s)); + return(False); + } + return(True); + } + + DEBUG(3,("reduce_name [%s] [%s]\n",s,dir)); + + /* remove any double slashes */ + string_sub(s,"//","/"); + + strcpy(basename,s); + p = strrchr(basename,'/'); + + if (!p) + return(True); + + if (!GetWd(wd)) + { + DEBUG(0,("couldn't getwd for %s %s\n",s,dir)); + return(False); + } + + if (ChDir(dir) != 0) + { + DEBUG(0,("couldn't chdir to %s\n",dir)); + return(False); + } + + if (!GetWd(dir2)) + { + DEBUG(0,("couldn't getwd for %s\n",dir)); + ChDir(wd); + return(False); + } + + + if (p && (p != basename)) + { + *p = 0; + if (strcmp(p+1,".")==0) + p[1]=0; + if (strcmp(p+1,"..")==0) + *p = '/'; + } + + if (ChDir(basename) != 0) + { + ChDir(wd); + DEBUG(3,("couldn't chdir for %s %s basename=%s\n",s,dir,basename)); + return(False); + } + + if (!GetWd(newname)) + { + ChDir(wd); + DEBUG(2,("couldn't get wd for %s %s\n",s,dir2)); + return(False); + } + + if (p && (p != basename)) + { + strcat(newname,"/"); + strcat(newname,p+1); + } + + { + int l = strlen(dir2); + if (dir2[l-1] == '/') + l--; + + if (strncmp(newname,dir2,l) != 0) + { + ChDir(wd); + DEBUG(2,("Bad access attempt? s=%s dir=%s newname=%s l=%d\n",s,dir2,newname,l)); + return(False); + } + + if (relative) + { + if (newname[l] == '/') + strcpy(s,newname + l + 1); + else + strcpy(s,newname+l); + } + else + strcpy(s,newname); + } + + ChDir(wd); + + if (strlen(s) == 0) + strcpy(s,"./"); + + DEBUG(3,("reduced to %s\n",s)); + return(True); +#endif +} + +/**************************************************************************** +expand some *s +****************************************************************************/ +static void expand_one(char *Mask,int len) +{ + char *p1; + while ((p1 = strchr(Mask,'*')) != NULL) + { + int lfill = (len+1) - strlen(Mask); + int l1= (p1 - Mask); + pstring tmp; + strcpy(tmp,Mask); + memset(tmp+l1,'?',lfill); + strcpy(tmp + l1 + lfill,Mask + l1 + 1); + strcpy(Mask,tmp); + } +} + +/**************************************************************************** +expand a wildcard expression, replacing *s with ?s +****************************************************************************/ +void expand_mask(char *Mask,BOOL doext) +{ + pstring mbeg,mext; + pstring dirpart; + pstring filepart; + BOOL hasdot = False; + char *p1; + BOOL absolute = (*Mask == '\\'); + + *mbeg = *mext = *dirpart = *filepart = 0; + + /* parse the directory and filename */ + if (strchr(Mask,'\\')) + dirname_dos(Mask,dirpart); + + filename_dos(Mask,filepart); + + strcpy(mbeg,filepart); + if ((p1 = strchr(mbeg,'.')) != NULL) + { + hasdot = True; + *p1 = 0; + p1++; + strcpy(mext,p1); + } + else + { + strcpy(mext,""); + if (strlen(mbeg) > 8) + { + strcpy(mext,mbeg + 8); + mbeg[8] = 0; + } + } + + if (*mbeg == 0) + strcpy(mbeg,"????????"); + if ((*mext == 0) && doext && !hasdot) + strcpy(mext,"???"); + + if (strequal(mbeg,"*") && *mext==0) + strcpy(mext,"*"); + + /* expand *'s */ + expand_one(mbeg,8); + if (*mext) + expand_one(mext,3); + + strcpy(Mask,dirpart); + if (*dirpart || absolute) strcat(Mask,"\\"); + strcat(Mask,mbeg); + strcat(Mask,"."); + strcat(Mask,mext); + + DEBUG(6,("Mask expanded to [%s]\n",Mask)); +} + + +/**************************************************************************** +does a string have any uppercase chars in it? +****************************************************************************/ +BOOL strhasupper(char *s) +{ + while (*s) + { +#ifdef KANJI + if (is_shift_jis (*s)) { + s += 2; + } else if (is_kana (*s)) { + s++; + } else { + if (isupper(*s)) return(True); + s++; + } +#else + if (isupper(*s)) return(True); + s++; +#endif /* KANJI */ + } + return(False); +} + +/**************************************************************************** +does a string have any lowercase chars in it? +****************************************************************************/ +BOOL strhaslower(char *s) +{ + while (*s) + { +#ifdef KANJI + if (is_shift_jis (*s)) { + s += 2; + } else if (is_kana (*s)) { + s++; + } else { + if (islower(*s)) return(True); + s++; + } +#else + if (islower(*s)) return(True); + s++; +#endif /* KANJI */ + } + return(False); +} + +/**************************************************************************** +find the number of chars in a string +****************************************************************************/ +int count_chars(char *s,char c) +{ + int count=0; + while (*s) + { + if (*s == c) + count++; + s++; + } + return(count); +} + + +/**************************************************************************** + make a dir struct +****************************************************************************/ +void make_dir_struct(char *buf,char *mask,char *fname,unsigned int size,int mode,time_t date) +{ + char *p; + pstring mask2; + + strcpy(mask2,mask); + + if ((mode & aDIR) != 0) + size = 0; + + memset(buf+1,' ',11); + if ((p = strchr(mask2,'.')) != NULL) + { + *p = 0; + memcpy(buf+1,mask2,MIN(strlen(mask2),8)); + memcpy(buf+9,p+1,MIN(strlen(p+1),3)); + *p = '.'; + } + else + memcpy(buf+1,mask2,MIN(strlen(mask2),11)); + + bzero(buf+21,DIR_STRUCT_SIZE-21); + CVAL(buf,21) = mode; + put_dos_date(buf,22,date); + SSVAL(buf,26,size & 0xFFFF); + SSVAL(buf,28,size >> 16); + StrnCpy(buf+30,fname,12); + if (!case_sensitive) + strupper(buf+30); + DEBUG(8,("put name [%s] into dir struct\n",buf+30)); +} + + +/******************************************************************* +close the low 3 fd's and open dev/null in their place +********************************************************************/ +void close_low_fds(void) +{ + int fd; + int i; + close(0); close(1); close(2); + /* try and use up these file descriptors, so silly + library routines writing to stdout etc won't cause havoc */ + for (i=0;i<3;i++) { + fd = open("/dev/null",O_RDWR,0); + if (fd < 0) fd = open("/dev/null",O_WRONLY,0); + if (fd < 0) { + DEBUG(0,("Can't open /dev/null\n")); + return; + } + if (fd != i) { + DEBUG(0,("Didn't get file descriptor %d\n",i)); + return; + } + } +} + + +/**************************************************************************** +write to a socket +****************************************************************************/ +int write_socket(int fd,char *buf,int len) +{ + int ret=0; + + if (passive) + return(len); + DEBUG(6,("write_socket(%d,%d)\n",fd,len)); + ret = write_data(fd,buf,len); + + DEBUG(6,("write_socket(%d,%d) wrote %d\n",fd,len,ret)); + return(ret); +} + +/**************************************************************************** +read from a socket +****************************************************************************/ +int read_udp_socket(int fd,char *buf,int len) +{ + int ret; + struct sockaddr sock; + int socklen; + + socklen = sizeof(sock); + bzero((char *)&sock,socklen); + bzero((char *)&lastip,sizeof(lastip)); + ret = recvfrom(fd,buf,len,0,&sock,&socklen); + if (ret <= 0) + { + DEBUG(2,("read socket failed. ERRNO=%d\n",errno)); + return(0); + } + + lastip = *(struct in_addr *) &sock.sa_data[2]; + lastport = ntohs(((struct sockaddr_in *)&sock)->sin_port); + + return(ret); +} + +/**************************************************************************** +Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available, +else +if SYSV use O_NDELAY +if BSD use FNDELAY +****************************************************************************/ +int set_blocking(int fd, BOOL set) +{ +int val; +#ifdef O_NONBLOCK +#define FLAG_TO_SET O_NONBLOCK +#else +#ifdef SYSV +#define FLAG_TO_SET O_NDELAY +#else /* BSD */ +#define FLAG_TO_SET FNDELAY +#endif +#endif + + if((val = fcntl(fd, F_GETFL, 0))==-1) + return -1; + if(set) /* Turn blocking on - ie. clear nonblock flag */ + val &= ~FLAG_TO_SET; + else + val |= FLAG_TO_SET; + return fcntl( fd, F_SETFL, val); +#undef FLAG_TO_SET +} + + +/**************************************************************************** +Calculate the difference in timeout values. Return 1 if val1 > val2, +0 if val1 == val2, -1 if val1 < val2. Stores result in retval. retval +may be == val1 or val2 +****************************************************************************/ +static int tval_sub( struct timeval *retval, struct timeval *val1, struct timeval *val2) +{ + int usecdiff = val1->tv_usec - val2->tv_usec; + int secdiff = val1->tv_sec - val2->tv_sec; + if(usecdiff < 0) { + usecdiff = 1000000 + usecdiff; + secdiff--; + } + retval->tv_sec = secdiff; + retval->tv_usec = usecdiff; + if(secdiff < 0) + return -1; + if(secdiff > 0) + return 1; + return (usecdiff < 0 ) ? -1 : ((usecdiff > 0 ) ? 1 : 0); +} + +/**************************************************************************** +read data from a device with a timout in msec. +mincount = if timeout, minimum to read before returning +maxcount = number to be read. +****************************************************************************/ +int read_with_timeout(int fd,char *buf,int mincnt,int maxcnt,long time_out,BOOL exact) +{ + fd_set fds; + int selrtn; + int readret; + int nread = 0; + struct timeval timeout, tval1, tval2, tvaldiff; + int error_limit = 5; + + /* just checking .... */ + if (maxcnt <= 0) return(0); + + if(time_out == -2) + time_out = DEFAULT_PIPE_TIMEOUT; + + /* Blocking read */ + if(time_out < 0) { + if (mincnt == 0) mincnt = maxcnt; + + while (nread < mincnt) + { + readret = read(fd, buf + nread, maxcnt - nread); + if (readret <= 0) return(nread); + nread += readret; + } + return(nread); + } + + /* Non blocking read */ + if(time_out == 0) { + set_blocking(fd, False); + nread = read_data(fd, buf, mincnt); + if (nread < maxcnt) + nread += read(fd,buf+nread,maxcnt-nread); + if(nread == -1 && errno == EWOULDBLOCK) + nread = 0; + set_blocking(fd,True); + return nread; + } + + /* Most difficult - timeout read */ + /* If this is ever called on a disk file and + mincnt is greater then the filesize then + system performance will suffer severely as + select always return true on disk files */ + + /* Set initial timeout */ + timeout.tv_sec = time_out / 1000; + timeout.tv_usec = 1000 * (time_out % 1000); + + /* As most UNIXes don't modify the value of timeout + when they return from select we need to get the timeofday (in usec) + now, and also after the select returns so we know + how much time has elapsed */ + + if (exact) + GetTimeOfDay( &tval1); + nread = 0; /* Number of bytes we have read */ + + for(;;) + { + FD_ZERO(&fds); + FD_SET(fd,&fds); + + selrtn = sys_select(&fds,&timeout); + + /* Check if error */ + if(selrtn == -1) { + errno = EBADF; + return -1; + } + + /* Did we timeout ? */ + if (selrtn == 0) { + if (nread < mincnt) return -1; + break; /* Yes */ + } + + readret = read(fd, buf+nread, maxcnt-nread); + if (readret == 0 && nread < mincnt) { + /* error_limit should not really be needed, but some systems + do strange things ... I don't want to just continue + indefinately in case we get an infinite loop */ + if (error_limit--) continue; + return(-1); + } + + if (readret < 0) { + /* force a particular error number for + portability */ + DEBUG(5,("read gave error %s\n",strerror(errno))); + errno = EBADF; + return -1; + } + + nread += readret; + + /* If we have read more than mincnt then return */ + if (nread >= mincnt) + break; + + /* We need to do another select - but first reduce the + time_out by the amount of time already elapsed - if + this is less than zero then return */ + if (exact) { + GetTimeOfDay(&tval2); + (void)tval_sub( &tvaldiff, &tval2, &tval1); + + if (tval_sub(&timeout, &timeout, &tvaldiff) <= 0) + break; /* We timed out */ + } + + /* Save the time of day as we need to do the select + again (saves a system call) */ + tval1 = tval2; + } + + /* Return the number we got */ + return(nread); +} + +/**************************************************************************** +read data from the client. Maxtime is in milliseconds +****************************************************************************/ +int read_max_udp(int fd,char *buffer,int bufsize,int maxtime) +{ + fd_set fds; + int selrtn; + int nread; + struct timeval timeout; + + FD_ZERO(&fds); + FD_SET(fd,&fds); + + timeout.tv_sec = maxtime / 1000; + timeout.tv_usec = (maxtime % 1000) * 1000; + + selrtn = sys_select(&fds,maxtime>0?&timeout:NULL); + + if (!FD_ISSET(fd,&fds)) + return 0; + + nread = read_udp_socket(fd, buffer, bufsize); + + /* return the number got */ + return(nread); +} + +/******************************************************************* +find the difference in milliseconds between two struct timeval +values +********************************************************************/ +int TvalDiff(struct timeval *tvalold,struct timeval *tvalnew) +{ + return((tvalnew->tv_sec - tvalold->tv_sec)*1000 + + ((int)tvalnew->tv_usec - (int)tvalold->tv_usec)/1000); +} + +/**************************************************************************** +send a keepalive packet (rfc1002) +****************************************************************************/ +BOOL send_keepalive(int client) +{ + unsigned char buf[4]; + + buf[0] = 0x85; + buf[1] = buf[2] = buf[3] = 0; + + return(write_data(client,(char *)buf,4) == 4); +} + + + +/**************************************************************************** + read data from the client, reading exactly N bytes. +****************************************************************************/ +int read_data(int fd,char *buffer,int N) +{ + int ret; + int total=0; + + while (total < N) + { + ret = read(fd,buffer + total,N - total); + + /* this is for portability */ + if (ret < 0) + errno = EBADF; + + if (ret <= 0) + return total; + total += ret; + } + return total; +} + + +/**************************************************************************** + write data to a fd +****************************************************************************/ +int write_data(int fd,char *buffer,int N) +{ + int total=0; + int ret; + + while (total < N) + { + ret = write(fd,buffer + total,N - total); + + if (ret <= 0) + return total; + + total += ret; + } + return total; +} + + +/* variables used by the read prediction module */ +int rp_fd = -1; +int rp_offset = 0; +int rp_length = 0; +int rp_alloced = 0; +int rp_predict_fd = -1; +int rp_predict_offset = 0; +int rp_predict_length = 0; +int rp_timeout = 5; +time_t rp_time = 0; +char *rp_buffer = NULL; +BOOL predict_skip=False; +time_t smb_last_time=(time_t)0; + +/**************************************************************************** +handle read prediction on a file +****************************************************************************/ +int read_predict(int fd,int offset,char *buf,char **ptr,int num) +{ + int ret = 0; + int possible = rp_length - (offset - rp_offset); + + possible = MIN(possible,num); + + /* give data if possible */ + if (fd == rp_fd && + offset >= rp_offset && + possible>0 && + smb_last_time-rp_time < rp_timeout) + { + ret = possible; + if (buf) + memcpy(buf,rp_buffer + (offset-rp_offset),possible); + else + *ptr = rp_buffer + (offset-rp_offset); + DEBUG(5,("read-prediction gave %d bytes of %d\n",ret,num)); + } + + if (ret == num) { + predict_skip = True; + } else { + predict_skip = False; + + /* prepare the next prediction */ + rp_predict_fd = fd; + rp_predict_offset = offset + num; + rp_predict_length = num; + } + + if (ret < 0) ret = 0; + + return(ret); +} + +/**************************************************************************** +pre-read some data +****************************************************************************/ +void do_read_prediction() +{ + if (predict_skip) return; + + if (rp_predict_fd == -1) + return; + + rp_fd = rp_predict_fd; + rp_offset = rp_predict_offset; + rp_length = 0; + + rp_predict_fd = -1; + + rp_predict_length = MIN(rp_predict_length,2*ReadSize); + rp_predict_length = MAX(rp_predict_length,1024); + rp_offset = (rp_offset/1024)*1024; + rp_predict_length = (rp_predict_length/1024)*1024; + + if (rp_predict_length > rp_alloced) + { + rp_buffer = Realloc(rp_buffer,rp_predict_length); + rp_alloced = rp_predict_length; + if (!rp_buffer) + { + DEBUG(0,("can't allocate read-prediction buffer\n")); + rp_predict_fd = -1; + rp_fd = -1; + rp_alloced = 0; + return; + } + } + + if (lseek(rp_fd,rp_offset,SEEK_SET) != rp_offset) { + rp_fd = -1; + rp_predict_fd = -1; + return; + } + + rp_length = read(rp_fd,rp_buffer,rp_predict_length); + rp_time = time(NULL); + if (rp_length < 0) + rp_length = 0; +} + +/**************************************************************************** +invalidate read-prediction on a fd +****************************************************************************/ +void invalidate_read_prediction(int fd) +{ + if (rp_fd == fd) + rp_fd = -1; + if (rp_predict_fd == fd) + rp_predict_fd = -1; +} + + +/**************************************************************************** +transfer some data between two fd's +****************************************************************************/ +int transfer_file(int infd,int outfd,int n,char *header,int headlen,int align) +{ + static char *buf=NULL; + char *buf1,*abuf; + static int size = 0; + int total = 0; + + DEBUG(4,("transfer_file %d (head=%d) called\n",n,headlen)); + + if ((size < ReadSize) && buf) { + free(buf); + buf = NULL; + } + + size = MAX(ReadSize,1024); + + while (!buf && size>0) { + buf = (char *)Realloc(buf,size+8); + if (!buf) size /= 2; + } + if (!buf) { + DEBUG(0,("Can't allocate transfer buffer!\n")); + exit(1); + } + + abuf = buf + (align%8); + + if (header) + n += headlen; + + while (n > 0) + { + int s = MIN(n,size); + int ret,ret2=0; + + ret = 0; + + if (header && (headlen >= MIN(s,1024))) { + buf1 = header; + s = headlen; + ret = headlen; + headlen = 0; + header = NULL; + } else { + buf1 = abuf; + } + + if (header && headlen > 0) + { + ret = MIN(headlen,size); + memcpy(buf1,header,ret); + headlen -= ret; + header += ret; + if (headlen <= 0) header = NULL; + } + + if (s > ret) + ret += read(infd,buf1+ret,s-ret); + + if (ret > 0) + { + ret2 = (outfd>=0?write_data(outfd,buf1,ret):ret); + if (ret2 > 0) total += ret2; + /* if we can't write then dump excess data */ + if (ret2 != ret) + transfer_file(infd,-1,n-(ret+headlen),NULL,0,0); + } + if (ret <= 0 || ret2 != ret) + return(total); + n -= ret; + } + return(total); +} + + +/**************************************************************************** +read 4 bytes of a smb packet and return the smb length of the packet +possibly store the result in the buffer +****************************************************************************/ +int read_smb_length(int fd,char *inbuf,int timeout) +{ + char *buffer; + char buf[4]; + int len=0, msg_type; + BOOL ok=False; + + if (inbuf) + buffer = inbuf; + else + buffer = buf; + + while (!ok) + { + if (timeout > 0) + ok = (read_with_timeout(fd,buffer,4,4,timeout,False) == 4); + else + ok = (read_data(fd,buffer,4) == 4); + + if (!ok) + { + if (timeout>0) + { + DEBUG(10,("select timeout (%d)\n", timeout)); + return(-1); + } + else + { + DEBUG(6,("couldn't read from client\n")); + exit(1); + } + } + + len = smb_len(buffer); + msg_type = CVAL(buffer,0); + + if (msg_type == 0x85) + { + DEBUG(5,( "Got keepalive packet\n")); + ok = False; + } + } + + DEBUG(10,("got smb length of %d\n",len)); + + return(len); +} + + + +/**************************************************************************** + read an smb from a fd and return it's length +The timeout is in milli seconds +****************************************************************************/ +BOOL receive_smb(int fd,char *buffer,int timeout) +{ + int len; + BOOL ok; + + bzero(buffer,smb_size + 100); + + len = read_smb_length(fd,buffer,timeout); + if (len == -1) + return(False); + + if (len > BUFFER_SIZE) + { + DEBUG(0,("Invalid packet length! (%d bytes)\n",len)); + if (len > BUFFER_SIZE + (SAFETY_MARGIN/2)) + exit(1); + } + + ok = (read_data(fd,buffer+4,len) == len); + + if (!ok) + { + close_sockets(); + exit(1); + } + + return(True); +} + + +/**************************************************************************** + send an smb to a fd +****************************************************************************/ +BOOL send_smb(int fd,char *buffer) +{ + int len; + int ret,nwritten=0; + len = smb_len(buffer) + 4; + + while (nwritten < len) + { + ret = write_socket(fd,buffer+nwritten,len - nwritten); + if (ret <= 0) + { + DEBUG(0,("Error writing %d bytes to client. %d. Exiting\n",len,ret)); + close_sockets(); + exit(1); + } + nwritten += ret; + } + + + return True; +} + + +/**************************************************************************** +find a pointer to a netbios name +****************************************************************************/ +char *name_ptr(char *buf,int ofs) +{ + unsigned char c = *(unsigned char *)(buf+ofs); + + if ((c & 0xC0) == 0xC0) + { + uint16 l; + char p[2]; + memcpy(p,buf+ofs,2); + p[0] &= ~0xC0; + l = RSVAL(p,0); + DEBUG(5,("name ptr to pos %d from %d is %s\n",l,ofs,buf+l)); + return(buf + l); + } + else + return(buf+ofs); +} + +/**************************************************************************** +extract a netbios name from a buf +****************************************************************************/ +int name_extract(char *buf,int ofs,char *name) +{ + char *p = name_ptr(buf,ofs); + int d = PTR_DIFF(p,buf+ofs); + strcpy(name,""); + if (d < -50 || d > 50) return(0); + return(name_interpret(p,name)); +} + + +/**************************************************************************** +return the total storage length of a mangled name +****************************************************************************/ +int name_len(char *s) +{ + char *s0=s; + unsigned char c = *(unsigned char *)s; + if ((c & 0xC0) == 0xC0) + return(2); + while (*s) s += (*s)+1; + return(PTR_DIFF(s,s0)+1); +} + +/**************************************************************************** +send a single packet to a port on another machine +****************************************************************************/ +BOOL send_one_packet(char *buf,int len,struct in_addr ip,int port,int type) +{ + BOOL ret; + int out_fd; + struct sockaddr_in sock_out; + + if (passive) + return(True); + + /* create a socket to write to */ + out_fd = socket(AF_INET, type, 0); + if (out_fd == -1) + { + DEBUG(0,("socket failed")); + return False; + } + + /* set the address and port */ + bzero((char *)&sock_out,sizeof(sock_out)); + putip((char *)&sock_out.sin_addr,(char *)&ip); + sock_out.sin_port = htons( port ); + sock_out.sin_family = AF_INET; + + if (DEBUGLEVEL > 0) + DEBUG(3,("sending a packet of len %d to (%s) on port %d of type %s\n", + len,inet_ntoa(ip),port,type==SOCK_DGRAM?"DGRAM":"STREAM")); + + /* send it */ + ret = (sendto(out_fd,buf,len,0,(struct sockaddr *)&sock_out,sizeof(sock_out)) >= 0); + + if (!ret) + DEBUG(0,("Packet send to %s(%d) failed ERRNO=%d\n", + inet_ntoa(ip),port,errno)); + + close(out_fd); + return(ret); +} + +/******************************************************************* +sleep for a specified number of milliseconds +********************************************************************/ +void msleep(int t) +{ + int tdiff=0; + struct timeval tval,t1,t2; + fd_set fds; + + GetTimeOfDay(&t1); + GetTimeOfDay(&t2); + + while (tdiff < t) { + tval.tv_sec = (t-tdiff)/1000; + tval.tv_usec = 1000*((t-tdiff)%1000); + + FD_ZERO(&fds); + errno = 0; + sys_select(&fds,&tval); + + GetTimeOfDay(&t2); + tdiff = TvalDiff(&t1,&t2); + } +} + +/**************************************************************************** +check if a string is part of a list +****************************************************************************/ +BOOL in_list(char *s,char *list,BOOL casesensitive) +{ + pstring tok; + char *p=list; + + if (!list) return(False); + + while (next_token(&p,tok,LIST_SEP)) + { + if (casesensitive) { + if (strcmp(tok,s) == 0) + return(True); + } else { + if (StrCaseCmp(tok,s) == 0) + return(True); + } + } + return(False); +} + +/* this is used to prevent lots of mallocs of size 1 */ +static char *null_string = NULL; + +/**************************************************************************** +set a string value, allocing the space for the string +****************************************************************************/ +BOOL string_init(char **dest,char *src) +{ + int l; + if (!src) + src = ""; + + l = strlen(src); + + if (l == 0) + { + if (!null_string) + null_string = (char *)malloc(1); + + *null_string = 0; + *dest = null_string; + } + else + { + *dest = (char *)malloc(l+1); + strcpy(*dest,src); + } + return(True); +} + +/**************************************************************************** +free a string value +****************************************************************************/ +void string_free(char **s) +{ + if (!s || !(*s)) return; + if (*s == null_string) + *s = NULL; + if (*s) free(*s); + *s = NULL; +} + +/**************************************************************************** +set a string value, allocing the space for the string, and deallocating any +existing space +****************************************************************************/ +BOOL string_set(char **dest,char *src) +{ + string_free(dest); + + return(string_init(dest,src)); +} + +/**************************************************************************** +substitute a string for a pattern in another string. Make sure there is +enough room! + +This routine looks for pattern in s and replaces it with +insert. It may do multiple replacements. + +return True if a substitution was done. +****************************************************************************/ +BOOL string_sub(char *s,char *pattern,char *insert) +{ + BOOL ret = False; + char *p; + int ls,lp,li; + + if (!insert || !pattern || !s) return(False); + + ls = strlen(s); + lp = strlen(pattern); + li = strlen(insert); + + if (!*pattern) return(False); + + while (lp <= ls && (p = strstr(s,pattern))) + { + ret = True; + memmove(p+li,p+lp,ls + 1 - (PTR_DIFF(p,s) + lp)); + memcpy(p,insert,li); + s = p + li; + ls = strlen(s); + } + return(ret); +} + + + +/********************************************************* +* Recursive routine that is called by mask_match. +* Does the actual matching. +*********************************************************/ +BOOL do_match(char *str, char *regexp, int case_sig) +{ + char *p; + + for( p = regexp; *p && *str; ) { + switch(*p) { + case '?': + str++; p++; + break; + + case '*': + /* Look for a character matching + the one after the '*' */ + p++; + if(!*p) + return True; /* Automatic match */ + while(*str) { + while(*str && (case_sig ? (*p != *str) : (toupper(*p)!=toupper(*str)))) + str++; + if(do_match(str,p,case_sig)) + return True; + if(!*str) + return False; + else + str++; + } + return False; + + default: + if(case_sig) { + if(*str != *p) + return False; + } else { + if(toupper(*str) != toupper(*p)) + return False; + } + str++, p++; + break; + } + } + if(!*p && !*str) + return True; + + if (!*p && str[0] == '.' && str[1] == 0) + return(True); + + if (!*str && *p == '?') + { + while (*p == '?') p++; + return(!*p); + } + + if(!*str && (*p == '*' && p[1] == '\0')) + return True; + return False; +} + + +/********************************************************* +* Routine to match a given string with a regexp - uses +* simplified regexp that takes * and ? only. Case can be +* significant or not. +*********************************************************/ +BOOL mask_match(char *str, char *regexp, int case_sig,BOOL trans2) +{ + char *p; + pstring p1, p2; + fstring ebase,eext,sbase,sext; + + BOOL matched; + + /* Make local copies of str and regexp */ + StrnCpy(p1,regexp,sizeof(pstring)-1); + StrnCpy(p2,str,sizeof(pstring)-1); + + if (!strchr(p2,'.')) { + strcat(p2,"."); + } + +/* + if (!strchr(p1,'.')) { + strcat(p1,"."); + } +*/ + +#if 0 + if (strchr(p1,'.')) + { + string_sub(p1,"*.*","*"); + string_sub(p1,".*","*"); + } +#endif + + /* Remove any *? and ** as they are meaningless */ + for(p = p1; *p; p++) + while( *p == '*' && (p[1] == '?' ||p[1] == '*')) + (void)strcpy( &p[1], &p[2]); + + if (strequal(p1,"*")) return(True); + + DEBUG(5,("mask_match str=<%s> regexp=<%s>, case_sig = %d\n", p2, p1, case_sig)); + + if (trans2) { + strcpy(ebase,p1); + strcpy(sbase,p2); + } else { + if ((p=strrchr(p1,'.'))) { + *p = 0; + strcpy(ebase,p1); + strcpy(eext,p+1); + } else { + strcpy(ebase,p1); + eext[0] = 0; + } + + if (!strequal(p2,".") && !strequal(p2,"..") && (p=strrchr(p2,'.'))) { + *p = 0; + strcpy(sbase,p2); + strcpy(sext,p+1); + } else { + strcpy(sbase,p2); + strcpy(sext,""); + } + } + + matched = do_match(sbase,ebase,case_sig) && + (trans2 || do_match(sext,eext,case_sig)); + + DEBUG(5,("mask_match returning %d\n", matched)); + + return matched; +} + + + +/**************************************************************************** +become a daemon, discarding the controlling terminal +****************************************************************************/ +void become_daemon(void) +{ +#ifndef NO_FORK_DEBUG + if (fork()) + exit(0); + + /* detach from the terminal */ +#ifdef USE_SETSID + setsid(); +#else +#ifdef TIOCNOTTY + { + int i = open("/dev/tty", O_RDWR); + if (i >= 0) + { + ioctl(i, (int) TIOCNOTTY, (char *)0); + close(i); + } + } +#endif +#endif +#endif +} + +/**************************************************************************** +calculate the default netmask for an address +****************************************************************************/ +static void default_netmask(struct in_addr *inm, struct in_addr *iad) +{ + unsigned long ad = ntohl(iad->s_addr); + unsigned long nm; + /* + ** Guess a netmask based on the class of the IP address given. + */ + if ( (ad & 0x80000000) == 0 ) { + /* class A address */ + nm = 0xFF000000; + } else if ( (ad & 0xC0000000) == 0x80000000 ) { + /* class B address */ + nm = 0xFFFF0000; + } else if ( (ad & 0xE0000000) == 0xC0000000 ) { + /* class C address */ + nm = 0xFFFFFF00; + } else { + /* class D or E; netmask doesn't make much sense - guess 4 bits */ + nm = 0xFFFFFFF0; + } + inm->s_addr = htonl(nm); +} + +/**************************************************************************** + get the broadcast address for our address +(troyer@saifr00.ateng.az.honeywell.com) +****************************************************************************/ +void get_broadcast(struct in_addr *if_ipaddr, + struct in_addr *if_bcast, + struct in_addr *if_nmask) +{ + BOOL found = False; +#ifndef NO_GET_BROADCAST + int sock = -1; /* AF_INET raw socket desc */ + char buff[1024]; + struct ifreq *ifr=NULL; + int i; + +#if defined(EVEREST) + int n_interfaces; + struct ifconf ifc; + struct ifreq *ifreqs; +#elif defined(USE_IFREQ) + struct ifreq ifreq; + struct strioctl strioctl; + struct ifconf *ifc; +#else + struct ifconf ifc; +#endif +#endif + + /* get a default netmask and broadcast */ + default_netmask(if_nmask, if_ipaddr); + +#ifndef NO_GET_BROADCAST + /* Create a socket to the INET kernel. */ +#if USE_SOCKRAW + if ((sock = socket(AF_INET, SOCK_RAW, PF_INET )) < 0) +#else + if ((sock = socket(AF_INET, SOCK_DGRAM, 0 )) < 0) +#endif + { + DEBUG(0,( "Unable to open socket to get broadcast address\n")); + return; + } + + /* Get a list of the configured interfaces */ +#ifdef EVEREST + /* This is part of SCO Openserver 5: The ioctls are no longer part + if the lower level STREAMS interface glue. They are now real + ioctl calls */ + + if (ioctl(sock, SIOCGIFANUM, &n_interfaces) < 0) { + DEBUG(0,( "SIOCGIFANUM: %s\n", strerror(errno))); + } else { + DEBUG(0,( "number of interfaces returned is: %d\n", n_interfaces)); + + ifc.ifc_len = sizeof(struct ifreq) * n_interfaces; + ifc.ifc_buf = (caddr_t) alloca(ifc.ifc_len); + + if (ioctl(sock, SIOCGIFCONF, &ifc) < 0) + DEBUG(0, ( "SIOCGIFCONF: %s\n", strerror(errno))); + else { + ifr = ifc.ifc_req; + + for (i = 0; i < n_interfaces; ++i) { + if (if_ipaddr->s_addr == + ((struct sockaddr_in *) &ifr[i].ifr_addr)->sin_addr.s_addr) { + found = True; + break; + } + } + } + } +#elif defined(USE_IFREQ) + ifc = (struct ifconf *)buff; + ifc->ifc_len = BUFSIZ - sizeof(struct ifconf); + strioctl.ic_cmd = SIOCGIFCONF; + strioctl.ic_dp = (char *)ifc; + strioctl.ic_len = sizeof(buff); + if (ioctl(sock, I_STR, &strioctl) < 0) { + DEBUG(0,( "I_STR/SIOCGIFCONF: %s\n", strerror(errno))); + } else { + ifr = (struct ifreq *)ifc->ifc_req; + + /* Loop through interfaces, looking for given IP address */ + for (i = ifc->ifc_len / sizeof(struct ifreq); --i >= 0; ifr++) { + if (if_ipaddr->s_addr == + (*(struct sockaddr_in *) &ifr->ifr_addr).sin_addr.s_addr) { + found = True; + break; + } + } + } +#elif defined(__FreeBSD__) || defined(NETBSD) + ifc.ifc_len = sizeof(buff); + ifc.ifc_buf = buff; + if (ioctl(sock, SIOCGIFCONF, &ifc) < 0) { + DEBUG(0,("SIOCGIFCONF: %s\n", strerror(errno))); + } else { + ifr = ifc.ifc_req; + /* Loop through interfaces, looking for given IP address */ + i = ifc.ifc_len; + while (i > 0) { + if (if_ipaddr->s_addr == + (*(struct sockaddr_in *) &ifr->ifr_addr).sin_addr.s_addr) { + found = True; + break; + } + i -= ifr->ifr_addr.sa_len + IFNAMSIZ; + ifr = (struct ifreq*) ((char*) ifr + ifr->ifr_addr.sa_len + IFNAMSIZ); + } + } +#else + ifc.ifc_len = sizeof(buff); + ifc.ifc_buf = buff; + if (ioctl(sock, SIOCGIFCONF, &ifc) < 0) { + DEBUG(0,("SIOCGIFCONF: %s\n", strerror(errno))); + } else { + ifr = ifc.ifc_req; + + /* Loop through interfaces, looking for given IP address */ + for (i = ifc.ifc_len / sizeof(struct ifreq); --i >= 0; ifr++) { +#ifdef BSDI + if (ioctl(sock, SIOCGIFADDR, ifr) < 0) break; +#endif + if (if_ipaddr->s_addr == + (*(struct sockaddr_in *) &ifr->ifr_addr).sin_addr.s_addr) { + found = True; + break; + } + } + } +#endif + + if (!found) { + DEBUG(0,("No interface found for address %s\n", inet_ntoa(*if_ipaddr))); + } else { + /* Get the netmask address from the kernel */ +#ifdef USE_IFREQ + ifreq = *ifr; + + strioctl.ic_cmd = SIOCGIFNETMASK; + strioctl.ic_dp = (char *)&ifreq; + strioctl.ic_len = sizeof(struct ifreq); + if (ioctl(sock, I_STR, &strioctl) < 0) + DEBUG(0,("Failed I_STR/SIOCGIFNETMASK: %s\n", strerror(errno))); + else + *if_nmask = ((struct sockaddr_in *)&ifreq.ifr_addr)->sin_addr; +#else + if (ioctl(sock, SIOCGIFNETMASK, ifr) < 0) + DEBUG(0,("SIOCGIFNETMASK failed\n")); + else + *if_nmask = ((struct sockaddr_in *)&ifr->ifr_addr)->sin_addr; +#endif + + DEBUG(2,("Netmask for %s = %s\n", ifr->ifr_name, + inet_ntoa(*if_nmask))); + } + + /* Close up shop */ + (void) close(sock); + +#endif + + /* sanity check on the netmask */ + { + unsigned long nm = ntohl(if_nmask->s_addr); + if ((nm >> 24) != 0xFF) { + DEBUG(0,("Impossible netmask %s - using defaults\n",inet_ntoa(*if_nmask))); + default_netmask(if_nmask, if_ipaddr); + } + } + + /* derive the broadcast assuming a 1's broadcast, as this is what + all MS operating systems do, we have to comply even if the unix + box is setup differently */ + { + unsigned long ad = ntohl(if_ipaddr->s_addr); + unsigned long nm = ntohl(if_nmask->s_addr); + unsigned long bc = (ad & nm) | (0xffffffff & ~nm); + if_bcast->s_addr = htonl(bc); + } + + DEBUG(2,("Derived broadcast address %s\n", inet_ntoa(*if_bcast))); +} /* get_broadcast */ + + +/**************************************************************************** +put up a yes/no prompt +****************************************************************************/ +BOOL yesno(char *p) +{ + pstring ans; + printf("%s",p); + + if (!fgets(ans,sizeof(ans)-1,stdin)) + return(False); + + if (*ans == 'y' || *ans == 'Y') + return(True); + + return(False); +} + +/**************************************************************************** +read a line from a file with possible \ continuation chars. +Blanks at the start or end of a line are stripped. +The string will be allocated if s2 is NULL +****************************************************************************/ +char *fgets_slash(char *s2,int maxlen,FILE *f) +{ + char *s=s2; + int len = 0; + int c; + BOOL start_of_line = True; + + if (feof(f)) + return(NULL); + + if (!s2) + { + maxlen = MIN(maxlen,8); + s = (char *)Realloc(s,maxlen); + } + + if (!s || maxlen < 2) return(NULL); + + *s = 0; + + while (len < maxlen-1) + { + c = getc(f); + switch (c) + { + case '\r': + break; + case '\n': + while (len > 0 && s[len-1] == ' ') + { + s[--len] = 0; + } + if (len > 0 && s[len-1] == '\\') + { + s[--len] = 0; + start_of_line = True; + break; + } + return(s); + case EOF: + if (len <= 0 && !s2) + free(s); + return(len>0?s:NULL); + case ' ': + if (start_of_line) + break; + default: + start_of_line = False; + s[len++] = c; + s[len] = 0; + } + if (!s2 && len > maxlen-3) + { + maxlen *= 2; + s = (char *)Realloc(s,maxlen); + if (!s) return(NULL); + } + } + return(s); +} + + + +/**************************************************************************** +set the length of a file from a filedescriptor. +Returns 0 on success, -1 on failure. +****************************************************************************/ +int set_filelen(int fd, long len) +{ +/* According to W. R. Stevens advanced UNIX prog. Pure 4.3 BSD cannot + extend a file with ftruncate. Provide alternate implementation + for this */ + +#if FTRUNCATE_CAN_EXTEND + return ftruncate(fd, len); +#else + struct stat st; + char c = 0; + long currpos = lseek(fd, 0L, SEEK_CUR); + + if(currpos < 0) + return -1; + /* Do an fstat to see if the file is longer than + the requested size (call ftruncate), + or shorter, in which case seek to len - 1 and write 1 + byte of zero */ + if(fstat(fd, &st)<0) + return -1; + +#ifdef S_ISFIFO + if (S_ISFIFO(st.st_mode)) return 0; +#endif + + if(st.st_size == len) + return 0; + if(st.st_size > len) + return ftruncate(fd, len); + + if(lseek(fd, len-1, SEEK_SET) != len -1) + return -1; + if(write(fd, &c, 1)!=1) + return -1; + /* Seek to where we were */ + lseek(fd, currpos, SEEK_SET); + return 0; +#endif +} + + +/**************************************************************************** +return the byte checksum of some data +****************************************************************************/ +int byte_checksum(char *buf,int len) +{ + unsigned char *p = (unsigned char *)buf; + int ret = 0; + while (len--) + ret += *p++; + return(ret); +} + + + +#ifdef HPUX +/**************************************************************************** +this is a version of setbuffer() for those machines that only have setvbuf +****************************************************************************/ +void setbuffer(FILE *f,char *buf,int bufsize) +{ + setvbuf(f,buf,_IOFBF,bufsize); +} +#endif + + +/**************************************************************************** +parse out a directory name from a path name. Assumes dos style filenames. +****************************************************************************/ +char *dirname_dos(char *path,char *buf) +{ + char *p = strrchr(path,'\\'); + + if (!p) + strcpy(buf,path); + else + { + *p = 0; + strcpy(buf,path); + *p = '\\'; + } + + return(buf); +} + + +/**************************************************************************** +parse out a filename from a path name. Assumes dos style filenames. +****************************************************************************/ +static char *filename_dos(char *path,char *buf) +{ + char *p = strrchr(path,'\\'); + + if (!p) + strcpy(buf,path); + else + strcpy(buf,p+1); + + return(buf); +} + + + +/**************************************************************************** +expand a pointer to be a particular size +****************************************************************************/ +void *Realloc(void *p,int size) +{ + void *ret=NULL; + if (!p) + ret = (void *)malloc(size); + else + ret = (void *)realloc(p,size); + + if (!ret) + DEBUG(0,("Memory allocation error: failed to expand to %d bytes\n",size)); + + return(ret); +} + +/**************************************************************************** +set the time on a file +****************************************************************************/ +BOOL set_filetime(char *fname,time_t mtime) +{ + struct utimbuf times; + + if (null_mtime(mtime)) return(True); + + times.modtime = times.actime = mtime; + + if (sys_utime(fname,×)) { + DEBUG(4,("set_filetime(%s) failed: %s\n",fname,strerror(errno))); + } + + return(True); +} + + +#ifdef NOSTRDUP +/**************************************************************************** +duplicate a string +****************************************************************************/ +char *strdup(char *s) +{ + char *ret = NULL; + if (!s) return(NULL); + ret = (char *)malloc(strlen(s)+1); + if (!ret) return(NULL); + strcpy(ret,s); + return(ret); +} +#endif + + +/**************************************************************************** + Signal handler for SIGPIPE (write on a disconnected socket) +****************************************************************************/ +void Abort(void ) +{ + DEBUG(0,("Probably got SIGPIPE\nExiting\n")); + exit(2); +} + + +#ifdef REPLACE_STRLEN +/**************************************************************************** +a replacement strlen() that returns int for solaris +****************************************************************************/ +int Strlen(char *s) +{ + int ret=0; + if (!s) return(0); + while (*s++) ret++; + return(ret); +} +#endif + + +/**************************************************************************** +return a time at the start of the current month +****************************************************************************/ +time_t start_of_month(void) +{ + time_t t = time(NULL); + struct tm *t2; + + t2 = gmtime(&t); + + t2->tm_mday = 1; + t2->tm_hour = 0; + t2->tm_min = 0; + t2->tm_sec = 0; + + return(mktime(t2)); +} + + +/******************************************************************* + check for a sane unix date +********************************************************************/ +BOOL sane_unix_date(time_t unixdate) +{ + struct tm t,today; + time_t t_today = time(NULL); + + t = *(LocalTime(&unixdate,LOCAL_TO_GMT)); + today = *(LocalTime(&t_today,LOCAL_TO_GMT)); + + if (t.tm_year < 80) + return(False); + + if (t.tm_year > today.tm_year) + return(False); + + if (t.tm_year == today.tm_year && + t.tm_mon > today.tm_mon) + return(False); + + + if (t.tm_year == today.tm_year && + t.tm_mon == today.tm_mon && + t.tm_mday > (today.tm_mday+1)) + return(False); + + return(True); +} + + + +#ifdef NO_FTRUNCATE + /******************************************************************* +ftruncate for operating systems that don't have it +********************************************************************/ +int ftruncate(int f,long l) +{ + struct flock fl; + + fl.l_whence = 0; + fl.l_len = 0; + fl.l_start = l; + fl.l_type = F_WRLCK; + return fcntl(f, F_FREESP, &fl); +} +#endif + + + +/**************************************************************************** +get my own name and IP +****************************************************************************/ +BOOL get_myname(char *myname,struct in_addr *ip) +{ + struct hostent *hp; + pstring hostname; + + *hostname = 0; + + /* get my host name */ + if (gethostname(hostname, MAXHOSTNAMELEN) == -1) + { + DEBUG(0,("gethostname failed\n")); + return False; + } + + /* get host info */ + if ((hp = Get_Hostbyname(hostname)) == 0) + { + DEBUG(0,( "Get_Hostbyname: Unknown host %s.\n",hostname)); + return False; + } + + if (myname) + { + /* split off any parts after an initial . */ + char *p = strchr(hostname,'.'); + if (p) *p = 0; + + strcpy(myname,hostname); + } + + if (ip) + putip((char *)ip,(char *)hp->h_addr); + + return(True); +} + + +/**************************************************************************** +true if two IP addresses are equal +****************************************************************************/ +BOOL ip_equal(struct in_addr ip1,struct in_addr ip2) +{ + unsigned long a1,a2; + a1 = ntohl(ip1.s_addr); + a2 = ntohl(ip2.s_addr); + return(a1 == a2); +} + + +/**************************************************************************** +open a socket of the specified type, port and address for incoming data +****************************************************************************/ +int open_socket_in(int type, int port, int dlevel) +{ + struct hostent *hp; + struct sockaddr_in sock; + pstring host_name; + int res; + + /* get my host name */ +#ifdef MAXHOSTNAMELEN + if (gethostname(host_name, MAXHOSTNAMELEN) == -1) +#else + if (gethostname(host_name, sizeof(host_name)) == -1) +#endif + { DEBUG(0,("gethostname failed\n")); return -1; } + + /* get host info */ + if ((hp = Get_Hostbyname(host_name)) == 0) + { + DEBUG(0,( "Get_Hostbyname: Unknown host. %s\n",host_name)); + return -1; + } + + bzero((char *)&sock,sizeof(sock)); + memcpy((char *)&sock.sin_addr,(char *)hp->h_addr, hp->h_length); +#if defined(__FreeBSD__) || defined(NETBSD) /* XXX not the right ifdef */ + sock.sin_len = sizeof(sock); +#endif + sock.sin_port = htons( port ); + sock.sin_family = hp->h_addrtype; + sock.sin_addr.s_addr = INADDR_ANY; + res = socket(hp->h_addrtype, type, 0); + if (res == -1) + { DEBUG(0,("socket failed\n")); return -1; } + + { + int one=1; + setsockopt(res,SOL_SOCKET,SO_REUSEADDR,(char *)&one,sizeof(one)); + } + + /* now we've got a socket - we need to bind it */ + if (bind(res, (struct sockaddr * ) &sock,sizeof(sock)) < 0) + { + if (port) { + if (port == 139 || port == 137) + DEBUG(dlevel,("bind failed on port %d (%s)\n", + port,strerror(errno))); + close(res); + + if (dlevel > 0 && port < 1000) + port = 7999; + + if (port >= 1000 && port < 9000) + return(open_socket_in(type,port+1,dlevel)); + } + + return(-1); + } + DEBUG(3,("bind succeeded on port %d\n",port)); + + return res; +} + + +/**************************************************************************** + create an outgoing socket + **************************************************************************/ +int open_socket_out(int type, struct in_addr *addr, int port ) +{ + struct sockaddr_in sock_out; + int res; + + /* create a socket to write to */ + res = socket(PF_INET, type, 0); + if (res == -1) + { DEBUG(0,("socket error\n")); return -1; } + + if (type != SOCK_STREAM) return(res); + + bzero((char *)&sock_out,sizeof(sock_out)); + putip((char *)&sock_out.sin_addr,(char *)addr); + + sock_out.sin_port = htons( port ); + sock_out.sin_family = PF_INET; + + DEBUG(3,("Connecting to %s at port %d\n",inet_ntoa(*addr),port)); + + /* and connect it to the destination */ + if (connect(res,(struct sockaddr *)&sock_out,sizeof(sock_out))<0) { + DEBUG(0,("connect error: %s\n",strerror(errno))); + close(res); + return(-1); + } + + return res; +} + + +/**************************************************************************** +interpret a protocol description string, with a default +****************************************************************************/ +int interpret_protocol(char *str,int def) +{ + if (strequal(str,"NT1")) + return(PROTOCOL_NT1); + if (strequal(str,"LANMAN2")) + return(PROTOCOL_LANMAN2); + if (strequal(str,"LANMAN1")) + return(PROTOCOL_LANMAN1); + if (strequal(str,"CORE")) + return(PROTOCOL_CORE); + if (strequal(str,"COREPLUS")) + return(PROTOCOL_COREPLUS); + if (strequal(str,"CORE+")) + return(PROTOCOL_COREPLUS); + + DEBUG(0,("Unrecognised protocol level %s\n",str)); + + return(def); +} + +/**************************************************************************** +interpret a security level +****************************************************************************/ +int interpret_security(char *str,int def) +{ + if (strequal(str,"SERVER")) + return(SEC_SERVER); + if (strequal(str,"USER")) + return(SEC_USER); + if (strequal(str,"SHARE")) + return(SEC_SHARE); + + DEBUG(0,("Unrecognised security level %s\n",str)); + + return(def); +} + + +/**************************************************************************** +interpret an internet address or name into an IP address in 4 byte form +****************************************************************************/ +unsigned long interpret_addr(char *str) +{ + struct hostent *hp; + unsigned long res; + + if (strcmp(str,"0.0.0.0") == 0) return(0); + if (strcmp(str,"255.255.255.255") == 0) return(0xFFFFFFFF); + + /* if it's in the form of an IP address then get the lib to interpret it */ + if (isdigit(str[0])) { + res = inet_addr(str); + } else { + /* otherwise assume it's a network name of some sort and use Get_Hostbyname */ + if ((hp = Get_Hostbyname(str)) == 0) { + DEBUG(3,("Get_Hostbyname: Unknown host. %s\n",str)); + return 0; + } + putip((char *)&res,(char *)hp->h_addr); + } + + if (res == (unsigned long)-1) return(0); + + return(res); +} + +/******************************************************************* + a convenient addition to interpret_addr() + ******************************************************************/ +struct in_addr *interpret_addr2(char *str) +{ + static struct in_addr ret; + unsigned long a = interpret_addr(str); + putip((char *)&ret,(char *)&a); + return(&ret); +} + +/******************************************************************* + check if an IP is the 0.0.0.0 + ******************************************************************/ +BOOL zero_ip(struct in_addr ip) +{ + unsigned long a; + putip((char *)&a,(char *)&ip); + return(a == 0); +} + +#define TIME_FIXUP_CONSTANT (369.0*365.25*24*60*60-(3.0*24*60*60+6.0*60*60)) + +/**************************************************************************** +interpret an 8 byte "filetime" structure to a time_t +It's originally in "100ns units since jan 1st 1601" + +It appears to be kludge-GMT (at least for file listings). This means +its the GMT you get by taking a localtime and adding the +serverzone. This is NOT the same as GMT in some cases. This routine +converts this to real GMT. +****************************************************************************/ +time_t interpret_long_date(char *p) +{ + double d; + time_t ret; + uint32 tlow,thigh; + tlow = IVAL(p,0); + thigh = IVAL(p,4); + + if (thigh == 0) return(0); + + d = ((double)thigh)*4.0*(double)(1<<30); + d += (tlow&0xFFF00000); + d *= 1.0e-7; + + /* now adjust by 369 years to make the secs since 1970 */ + d -= TIME_FIXUP_CONSTANT; + + if (d>=MAXINT) + return(0); + + ret = (time_t)(d+0.5); + + /* this takes us from kludge-GMT to real GMT */ + ret += TimeDiff(ret) - serverzone; + + return(ret); +} + + +/**************************************************************************** +put a 8 byte filetime from a time_t +This takes real GMT as input and converts to kludge-GMT +****************************************************************************/ +void put_long_date(char *p,time_t t) +{ + uint32 tlow,thigh; + double d; + + if (t==0) { + SIVAL(p,0,0); SIVAL(p,4,0); + return; + } + + /* this converts GMT to kludge-GMT */ + t -= TimeDiff(t) - serverzone; + + d = (double) (t); + + d += TIME_FIXUP_CONSTANT; + + d *= 1.0e7; + + thigh = (uint32)(d * (1.0/(4.0*(double)(1<<30)))); + tlow = (uint32)(d - ((double)thigh)*4.0*(double)(1<<30)); + + SIVAL(p,0,tlow); + SIVAL(p,4,thigh); +} + +/******************************************************************* +sub strings with useful parameters +********************************************************************/ +void standard_sub_basic(char *s) +{ + if (!strchr(s,'%')) return; + + string_sub(s,"%R",remote_proto); + string_sub(s,"%a",remote_arch); + string_sub(s,"%m",remote_machine); + string_sub(s,"%L",local_machine); + + if (!strchr(s,'%')) return; + + string_sub(s,"%v",VERSION); + string_sub(s,"%h",myhostname); + string_sub(s,"%U",sesssetup_user); + + if (!strchr(s,'%')) return; + + string_sub(s,"%I",Client_info.addr); + string_sub(s,"%M",Client_info.name); + string_sub(s,"%T",timestring()); + + if (!strchr(s,'%')) return; + + { + char pidstr[10]; + sprintf(pidstr,"%d",(int)getpid()); + string_sub(s,"%d",pidstr); + } + + if (!strchr(s,'%')) return; + + { + struct passwd *pass = Get_Pwnam(sesssetup_user,False); + if (pass) { + string_sub(s,"%G",gidtoname(pass->pw_gid)); + } + } +} + + +/******************************************************************* +write a string in unicoode format +********************************************************************/ +int PutUniCode(char *dst,char *src) +{ + int ret = 0; + while (*src) { + dst[ret++] = src[0]; + dst[ret++] = 0; + src++; + } + dst[ret++]=0; + dst[ret++]=0; + return(ret); +} + + +pstring smbrun_path = SMBRUN; + +/**************************************************************************** +run a command via system() using smbrun +****************************************************************************/ +int smbrun(char *cmd,char *outfile) +{ + int ret; + pstring syscmd; + + if (!file_exist(smbrun_path,NULL)) + { + DEBUG(0,("SMBRUN ERROR: Can't find %s. Installation problem?\n",smbrun_path)); + return(1); + } + + sprintf(syscmd,"%s \"(%s 2>&1) > %s\"", + smbrun_path,cmd, + outfile?outfile:"/dev/null"); + + DEBUG(5,("smbrun - running %s ",syscmd)); + ret = system(syscmd); + DEBUG(5,("gave %d\n",ret)); + return(ret); +} + + +/**************************************************************************** +a wrapper for gethostbyname() that tries with all lower and all upper case +if the initial name fails +****************************************************************************/ +struct hostent *Get_Hostbyname(char *name) +{ + char *name2 = strdup(name); + struct hostent *ret; + + if (!name2) + { + DEBUG(0,("Memory allocation error in Get_Hostbyname! panic\n")); + exit(0); + } + + if (!isalnum(*name2)) + { + free(name2); + return(NULL); + } + + ret = gethostbyname(name2); + if (ret != NULL) + { + free(name2); + return(ret); + } + + /* try with all lowercase */ + strlower(name2); + ret = gethostbyname(name2); + if (ret != NULL) + { + free(name2); + return(ret); + } + + /* try with all uppercase */ + strupper(name2); + ret = gethostbyname(name2); + if (ret != NULL) + { + free(name2); + return(ret); + } + + /* nothing works :-( */ + free(name2); + return(NULL); +} + + +/**************************************************************************** +check if a process exists. Does this work on all unixes? +****************************************************************************/ +BOOL process_exists(int pid) +{ +#ifdef LINUX + fstring s; + sprintf(s,"/proc/%d",pid); + return(directory_exist(s,NULL)); +#else + { + static BOOL tested=False; + static BOOL ok=False; + fstring s; + if (!tested) { + tested = True; + sprintf(s,"/proc/%05d",getpid()); + ok = file_exist(s,NULL); + } + if (ok) { + sprintf(s,"/proc/%05d",pid); + return(file_exist(s,NULL)); + } + } + + /* a best guess for non root access */ + if (geteuid() != 0) return(True); + + /* otherwise use kill */ + return(pid == getpid() || kill(pid,0) == 0); +#endif +} + + +/******************************************************************* +turn a uid into a user name +********************************************************************/ +char *uidtoname(int uid) +{ + static char name[40]; + struct passwd *pass = getpwuid(uid); + if (pass) return(pass->pw_name); + sprintf(name,"%d",uid); + return(name); +} + +/******************************************************************* +turn a gid into a group name +********************************************************************/ +char *gidtoname(int gid) +{ + static char name[40]; + struct group *grp = getgrgid(gid); + if (grp) return(grp->gr_name); + sprintf(name,"%d",gid); + return(name); +} + +/******************************************************************* +block sigs +********************************************************************/ +void BlockSignals(BOOL block) +{ +#ifdef USE_SIGBLOCK + int block_mask = (sigmask(SIGTERM)|sigmask(SIGQUIT)|sigmask(SIGSEGV) + |sigmask(SIGCHLD)|sigmask(SIGQUIT)|sigmask(SIGBUS)| + sigmask(SIGINT)); + if (block) + sigblock(block_mask); + else + sigunblock(block_mask); +#endif +} + +#if AJT +/******************************************************************* +my own panic function - not suitable for general use +********************************************************************/ +void ajt_panic(void) +{ + pstring cmd = "/usr/bin/X11/xedit -display :0 /tmp/ERROR_FAULT &"; + smbrun(cmd,NULL); +} +#endif + +#ifdef USE_DIRECT +#define DIRECT direct +#else +#define DIRECT dirent +#endif + +/******************************************************************* +a readdir wrapper which just returns the file name +also return the inode number if requested +********************************************************************/ +char *readdirname(void *p) +{ + struct DIRECT *ptr; + char *dname; + + if (!p) return(NULL); + + ptr = (struct DIRECT *)readdir(p); + if (!ptr) return(NULL); + + dname = ptr->d_name; + +#ifdef KANJI + { + static pstring buf; + strcpy(buf, dname); + unix_to_dos(buf, True); + dname = buf; + } +#endif + +#ifdef NEXT2 + if (telldir(p) < 0) return(NULL); +#endif + +#ifdef SUNOS5 + /* this handles a broken compiler setup, causing a mixture + of BSD and SYSV headers and libraries */ + { + static BOOL broken_readdir = False; + if (!broken_readdir && !(*(dname)) && strequal("..",dname-2)) + { + DEBUG(0,("Your readdir() is broken. You have somehow mixed SYSV and BSD headers and libraries\n")); + broken_readdir = True; + } + if (broken_readdir) + return(dname-2); + } +#endif + + return(dname); +} + + + +#if (defined(SecureWare) && defined(SCO)) +/* This is needed due to needing the nap() function but we don't want + to include the Xenix libraries since that will break other things... + BTW: system call # 0x0c28 is the same as calling nap() */ +long nap(long milliseconds) { + return syscall(0x0c28, milliseconds); +} +#endif + +#ifdef NO_INITGROUPS +#include <sys/types.h> +#include <limits.h> +#include <grp.h> + +#ifndef NULL +#define NULL (void *)0 +#endif + +/**************************************************************************** + some systems don't have an initgroups call +****************************************************************************/ +int initgroups(char *name,gid_t id) +{ +#ifdef NO_SETGROUPS + /* yikes! no SETGROUPS or INITGROUPS? how can this work? */ + return(0); +#else + gid_t grouplst[NGROUPS_MAX]; + int i,j; + struct group *g; + char *gr; + + grouplst[0] = id; + i = 1; + while (i < NGROUPS_MAX && + ((g = (struct group *)getgrent()) != (struct group *)NULL)) + { + if (g->gr_gid == id) + continue; + j = 0; + gr = g->gr_mem[0]; + while (gr && (*gr != (char)NULL)) { + if (strcmp(name,gr) == 0) { + grouplst[i] = g->gr_gid; + i++; + gr = (char *)NULL; + break; + } + gr = g->gr_mem[++j]; + } + } + endgrent(); + return(setgroups(i,grouplst)); +#endif +} +#endif + + +#if WRAP_MALLOC + +/* undo the wrapping temporarily */ +#undef malloc +#undef realloc +#undef free + +/**************************************************************************** +wrapper for malloc() to catch memory errors +****************************************************************************/ +void *malloc_wrapped(int size,char *file,int line) +{ +#ifdef xx_old_malloc + void *res = xx_old_malloc(size); +#else + void *res = malloc(size); +#endif + DEBUG(3,("Malloc called from %s(%d) with size=%d gave ptr=0x%X\n", + file,line, + size,(unsigned int)res)); + return(res); +} + +/**************************************************************************** +wrapper for realloc() to catch memory errors +****************************************************************************/ +void *realloc_wrapped(void *ptr,int size,char *file,int line) +{ +#ifdef xx_old_realloc + void *res = xx_old_realloc(ptr,size); +#else + void *res = realloc(ptr,size); +#endif + DEBUG(3,("Realloc\n")); + DEBUG(3,("free called from %s(%d) with ptr=0x%X\n", + file,line, + (unsigned int)ptr)); + DEBUG(3,("Malloc called from %s(%d) with size=%d gave ptr=0x%X\n", + file,line, + size,(unsigned int)res)); + return(res); +} + +/**************************************************************************** +wrapper for free() to catch memory errors +****************************************************************************/ +void free_wrapped(void *ptr,char *file,int line) +{ +#ifdef xx_old_free + xx_old_free(ptr); +#else + free(ptr); +#endif + DEBUG(3,("free called from %s(%d) with ptr=0x%X\n", + file,line,(unsigned int)ptr)); + return; +} + +/* and re-do the define for spots lower in this file */ +#define malloc(size) malloc_wrapped(size,__FILE__,__LINE__) +#define realloc(ptr,size) realloc_wrapped(ptr,size,__FILE__,__LINE__) +#define free(ptr) free_wrapped(ptr,__FILE__,__LINE__) + +#endif + +#ifdef REPLACE_STRSTR +/**************************************************************************** +Mips version of strstr doesn't seem to work correctly. +There is a #define in includes.h to redirect calls to this function. +****************************************************************************/ +char *Strstr(char *s, char *p) +{ + int len = strlen(p); + + while ( *s != '\0' ) { + if ( strncmp(s, p, len) == 0 ) + return s; + s++; + } + + return NULL; +} +#endif /* REPLACE_STRSTR */ + + +#ifdef REPLACE_MKTIME +/******************************************************************* +a mktime() replacement for those who don't have it - contributed by +C.A. Lademann <cal@zls.com> +********************************************************************/ +#define MINUTE 60 +#define HOUR 60*MINUTE +#define DAY 24*HOUR +#define YEAR 365*DAY +time_t Mktime(struct tm *t) +{ + struct tm *u; + time_t epoch = 0; + int mon [] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, + y, m, i; + + if(t->tm_year < 70) + return((time_t)-1); + + epoch = (t->tm_year - 70) * YEAR + + (t->tm_year / 4 - 70 / 4 - t->tm_year / 100) * DAY; + + y = t->tm_year; + m = 0; + + for(i = 0; i < t->tm_mon; i++) { + epoch += mon [m] * DAY; + if(m == 1 && y % 4 == 0 && (y % 100 != 0 || y % 400 == 0)) + epoch += DAY; + + if(++m > 11) { + m = 0; + y++; + } + } + + epoch += (t->tm_mday - 1) * DAY; + epoch += t->tm_hour * HOUR + t->tm_min * MINUTE + t->tm_sec; + + if((u = localtime(&epoch)) != NULL) { + t->tm_sec = u->tm_sec; + t->tm_min = u->tm_min; + t->tm_hour = u->tm_hour; + t->tm_mday = u->tm_mday; + t->tm_mon = u->tm_mon; + t->tm_year = u->tm_year; + t->tm_wday = u->tm_wday; + t->tm_yday = u->tm_yday; + t->tm_isdst = u->tm_isdst; +#ifndef NO_TM_NAME + memcpy(t->tm_name, u->tm_name, LTZNMAX); +#endif + } + + return(epoch); +} +#endif /* REPLACE_MKTIME */ + + + +#ifdef REPLACE_RENAME +/* Rename a file. (from libiberty in GNU binutils) */ +int +rename (zfrom, zto) + const char *zfrom; + const char *zto; +{ + if (link (zfrom, zto) < 0) + { + if (errno != EEXIST) + return -1; + if (unlink (zto) < 0 + || link (zfrom, zto) < 0) + return -1; + } + return unlink (zfrom); +} +#endif + + +#ifdef REPLACE_INNETGR +/* + * Search for a match in a netgroup. This replaces it on broken systems. + */ +int InNetGr(group, host, user, dom) + char *group, *host, *user, *dom; +{ + char *hst, *usr, *dm; + + setnetgrent(group); + while (getnetgrent(&hst, &usr, &dm)) + if (((host == 0) || (hst == 0) || !strcmp(host, hst)) && + ((user == 0) || (usr == 0) || !strcmp(user, usr)) && + ((dom == 0) || (dm == 0) || !strcmp(dom, dm))) { + endnetgrent(); + return (1); + } + endnetgrent(); + return (0); +} +#endif + + +#if WRAP_MEMCPY +#undef memcpy +/******************************************************************* +a wrapper around memcpy for diagnostic purposes +********************************************************************/ +void *memcpy_wrapped(void *d,void *s,int l,char *fname,int line) +{ + if (l>64 && (((int)d)%4) != (((int)s)%4)) + DEBUG(4,("Misaligned memcpy(0x%X,0x%X,%d) at %s(%d)\n",d,s,l,fname,line)); +#ifdef xx_old_memcpy + return(xx_old_memcpy(d,s,l)); +#else + return(memcpy(d,s,l)); +#endif +} +#define memcpy(d,s,l) memcpy_wrapped(d,s,l,__FILE__,__LINE__) +#endif + + + |