/* Unix SMB/Netbios implementation. Version 1.9. Samba utility functions Copyright (C) Andrew Tridgell 1992-1998 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" #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT)) #ifdef WITH_NISPLUS_HOME #ifdef BROKEN_NISPLUS_INCLUDE_FILES /* * The following lines are needed due to buggy include files * in Solaris 2.6 which define GROUP in both /usr/include/sys/acl.h and * also in /usr/include/rpcsvc/nis.h. The definitions conflict. JRA. * Also GROUP_OBJ is defined as 0x4 in /usr/include/sys/acl.h and as * an enum in /usr/include/rpcsvc/nis.h. */ #if defined(GROUP) #undef GROUP #endif #if defined(GROUP_OBJ) #undef GROUP_OBJ #endif #endif /* BROKEN_NISPLUS_INCLUDE_FILES */ #include #else /* !WITH_NISPLUS_HOME */ #include "rpcsvc/ypclnt.h" #endif /* WITH_NISPLUS_HOME */ #endif /* HAVE_NETGROUP && WITH_AUTOMOUNT */ #ifdef WITH_SSL #include #undef Realloc /* SSLeay defines this and samba has a function of this name */ extern SSL *ssl; extern int sslFd; #endif /* WITH_SSL */ extern int DEBUGLEVEL; int Protocol = PROTOCOL_COREPLUS; /* a default finfo structure to ensure all fields are sensible */ file_info def_finfo = {-1,0,0,0,0,0,0,""}; /* this is used by the chaining code */ int chain_size = 0; int trans_num = 0; /* case handling on filenames */ int case_default = CASE_LOWER; /* 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"; static enum remote_arch_types ra_type = RA_UNKNOWN; fstring remote_proto="UNKNOWN"; pstring user_socket_options=DEFAULT_SOCKET_OPTIONS; pstring sesssetup_user=""; pstring samlogon_user=""; BOOL sam_logon_in_ssb = False; pstring global_myname = ""; fstring global_myworkgroup = ""; char **my_netbios_names; static char *filename_dos(char *path,char *buf); /**************************************************************************** find a suitable temporary directory. The result should be copied immediately as it may be overwritten by a subsequent call ****************************************************************************/ char *tmpdir(void) { char *p; if ((p = getenv("TMPDIR"))) { return p; } return "/tmp"; } /**************************************************************************** determine whether we are in the specified group ****************************************************************************/ BOOL in_group(gid_t group, gid_t current_gid, int ngroups, gid_t *groups) { int i; if (group == current_gid) return(True); for (i=0;ist_mode)); } /******************************************************************* rename a unix file ********************************************************************/ int file_rename(char *from, char *to) { int rcode = rename (from, to); if (errno == EXDEV) { /* Rename across filesystems needed. */ rcode = copy_reg (from, to); } return rcode; } /******************************************************************* check a files mod time ********************************************************************/ time_t file_modtime(char *fname) { SMB_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,SMB_STRUCT_STAT *st) { SMB_STRUCT_STAT st2; BOOL ret; if (!st) st = &st2; if (sys_stat(dname,st) != 0) return(False); ret = S_ISDIR(st->st_mode); if(!ret) errno = ENOTDIR; return ret; } /******************************************************************* returns the size in bytes of the named file ********************************************************************/ SMB_OFF_T get_file_size(char *file_name) { SMB_STRUCT_STAT buf; buf.st_size = 0; if(sys_stat(file_name,&buf) != 0) return (SMB_OFF_T)-1; return(buf.st_size); } /******************************************************************* return a string representing an attribute for a file ********************************************************************/ char *attrib_string(uint16 mode) { static fstring attrstr; attrstr[0] = 0; if (mode & aVOLID) fstrcat(attrstr,"V"); if (mode & aDIR) fstrcat(attrstr,"D"); if (mode & aARCH) fstrcat(attrstr,"A"); if (mode & aHIDDEN) fstrcat(attrstr,"H"); if (mode & aSYSTEM) fstrcat(attrstr,"S"); if (mode & aRONLY) fstrcat(attrstr,"R"); return(attrstr); } /******************************************************************* 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; if (DEBUGLEVEL < 50) { bcc = MIN(bcc, 512); } dump_data(10, smb_buf(buf), bcc); } /******************************************************************* 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) memset(buf + smb_size,'\0',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); } /******************************************************************* 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 */ all_string_sub(s, "\\\\", "\\", 0); while ((p = strstr(s,"\\..\\")) != NULL) { pstring s1; *p = 0; pstrcpy(s1,p+3); if ((p=strrchr(s,'\\')) != NULL) *p = 0; else *s = 0; pstrcat(s,s1); } trim_string(s,NULL,"\\.."); all_string_sub(s, "\\.\\", "\\", 0); } /******************************************************************* 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 */ all_string_sub(s, "//","/", 0); /* Remove leading ./ characters */ if(strncmp(s, "./", 2) == 0) { trim_string(s, "./", NULL); if(*s == 0) pstrcpy(s,"./"); } while ((p = strstr(s,"/../")) != NULL) { pstring s1; *p = 0; pstrcpy(s1,p+3); if ((p=strrchr(s,'/')) != NULL) *p = 0; else *s = 0; pstrcat(s,s1); } trim_string(s,NULL,"/.."); } /******************************************************************* reduce a file name, removing .. elements and checking that it is below dir in the heirachy. This uses dos_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 base_name; pstring newname; char *p=NULL; BOOL relative = (*s != '/'); *dir2 = *wd = *base_name = *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); } if (strlen(s) == 0) pstrcpy(s,"./"); return(True); } DEBUG(3,("reduce_name [%s] [%s]\n",s,dir)); /* remove any double slashes */ all_string_sub(s,"//","/",0); pstrcpy(base_name,s); p = strrchr(base_name,'/'); if (!p) return(True); if (!dos_GetWd(wd)) { DEBUG(0,("couldn't getwd for %s %s\n",s,dir)); return(False); } if (dos_ChDir(dir) != 0) { DEBUG(0,("couldn't chdir to %s\n",dir)); return(False); } if (!dos_GetWd(dir2)) { DEBUG(0,("couldn't getwd for %s\n",dir)); dos_ChDir(wd); return(False); } if (p && (p != base_name)) { *p = 0; if (strcmp(p+1,".")==0) p[1]=0; if (strcmp(p+1,"..")==0) *p = '/'; } if (dos_ChDir(base_name) != 0) { dos_ChDir(wd); DEBUG(3,("couldn't chdir for %s %s basename=%s\n",s,dir,base_name)); return(False); } if (!dos_GetWd(newname)) { dos_ChDir(wd); DEBUG(2,("couldn't get wd for %s %s\n",s,dir2)); return(False); } if (p && (p != base_name)) { pstrcat(newname,"/"); pstrcat(newname,p+1); } { size_t l = strlen(dir2); if (dir2[l-1] == '/') l--; if (strncmp(newname,dir2,l) != 0) { dos_ChDir(wd); DEBUG(2,("Bad access attempt? s=%s dir=%s newname=%s l=%d\n",s,dir2,newname,(int)l)); return(False); } if (relative) { if (newname[l] == '/') pstrcpy(s,newname + l + 1); else pstrcpy(s,newname+l); } else pstrcpy(s,newname); } dos_ChDir(wd); if (strlen(s) == 0) pstrcpy(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; pstrcpy(tmp,Mask); memset(tmp+l1,'?',lfill); pstrcpy(tmp + l1 + lfill,Mask + l1 + 1); pstrcpy(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,'\\')) split_at_last_component(Mask,dirpart,'\\',NULL); filename_dos(Mask,filepart); pstrcpy(mbeg,filepart); if ((p1 = strchr(mbeg,'.')) != NULL) { hasdot = True; *p1 = 0; p1++; pstrcpy(mext,p1); } else { pstrcpy(mext,""); if (strlen(mbeg) > 8) { pstrcpy(mext,mbeg + 8); mbeg[8] = 0; } } if (*mbeg == 0) pstrcpy(mbeg,"????????"); if ((*mext == 0) && doext && !hasdot) pstrcpy(mext,"???"); if (strequal(mbeg,"*") && *mext==0) pstrcpy(mext,"*"); /* expand *'s */ expand_one(mbeg,8); if (*mext) expand_one(mext,3); pstrcpy(Mask,dirpart); if (*dirpart || absolute) pstrcat(Mask,"\\"); pstrcat(Mask,mbeg); pstrcat(Mask,"."); pstrcat(Mask,mext); DEBUG(6,("Mask expanded to [%s]\n",Mask)); } /**************************************************************************** make a dir struct ****************************************************************************/ void make_dir_struct(char *buf,char *mask,char *fname,SMB_OFF_T size,int mode,time_t date) { char *p; pstring mask2; pstrcpy(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)); memset(buf+21,'\0',DIR_STRUCT_SIZE-21); CVAL(buf,21) = mode; put_dos_date(buf,22,date); SSVAL(buf,26,size & 0xFFFF); SSVAL(buf,28,(size >> 16)&0xFFFF); 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 = sys_open("/dev/null",O_RDWR,0); if (fd < 0) fd = sys_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; } } } /**************************************************************************** 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 } /**************************************************************************** transfer some data between two fd's ****************************************************************************/ SMB_OFF_T transfer_file(int infd,int outfd,SMB_OFF_T n,char *header,int headlen,int align) { static char *buf=NULL; static int size=0; char *buf1,*abuf; SMB_OFF_T total = 0; DEBUG(4,("transfer_file n=%.0f (head=%d) called\n",(double)n,headlen)); if (size == 0) { size = lp_readsize(); size = MAX(size,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 = (int)MIN(n,(SMB_OFF_T)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); } /******************************************************************* 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(0,&fds,&tval); GetTimeOfDay(&t2); tdiff = TvalDiff(&t1,&t2); } } /********************************************************* * Recursive routine that is called by unix_mask_match. * Does the actual matching. This is the 'original code' * used by the unix matcher. *********************************************************/ BOOL unix_do_match(char *str, char *regexp, BOOL 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++; /* * Patch from weidel@multichart.de. In the case of the regexp * '*XX*' we want to ensure there are at least 2 'X' characters * in the filename after the '*' for a match to be made. */ { int matchcount=0; /* * Eat all the characters that match, but count how many there were. */ while(*str && (case_sig ? (*p == *str) : (toupper(*p)==toupper(*str)))) { str++; matchcount++; } /* * Now check that if the regexp had n identical characters that * matchcount had at least that many matches. */ while (( *(p+1) && (case_sig ? (*(p+1) == *p) : (toupper(*(p+1))==toupper(*p))))) { p++; matchcount--; } if ( matchcount <= 0 ) { return False; } } str--; /* We've eaten the match char after the '*' */ if(unix_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. * This is the 'original code' used by the unix matcher. *********************************************************/ static BOOL unix_mask_match(char *str, char *regexp, BOOL case_sig) { char *p; pstring p1, p2; fstring ebase,sbase; BOOL matched; /* Make local copies of str and regexp */ StrnCpy(p1,regexp,sizeof(pstring)-1); StrnCpy(p2,str,sizeof(pstring)-1); /* Remove any *? and ** as they are meaningless */ for(p = p1; *p; p++) while( *p == '*' && (p[1] == '?' ||p[1] == '*')) (void)pstrcpy( &p[1], &p[2]); if (strequal(p1,"*")) return(True); DEBUG(8,("unix_mask_match str=<%s> regexp=<%s>, case_sig = %d\n", p2, p1, case_sig)); fstrcpy(ebase,p1); fstrcpy(sbase,p2); matched = unix_do_match(sbase,ebase,case_sig); DEBUG(8,("unix_mask_match returning %d\n", matched)); return matched; } /********************************************************* * Recursive routine that is called by mask_match. * Does the actual matching. Returns True if matched, * False if failed. This is the 'new' NT style matcher. * The win9x_semantics parameter is needed as Win9x matching * is *actually different*. In Win9x, trailing '?' characters * will only match the *exact* number of characters. Under * DOS and NT they match any number. This makes no * sense..... *********************************************************/ static BOOL do_match(char *str, char *regexp, int case_sig, BOOL win9x_semantics) { 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++; /* * Patch from weidel@multichart.de. In the case of the regexp * '*XX*' we want to ensure there are at least 2 'X' characters * in the filename after the '*' for a match to be made. */ { int matchcount=0; /* * Eat all the characters that match, but count how many there were. */ while(*str && (case_sig ? (*p == *str) : (toupper(*p)==toupper(*str)))) { str++; matchcount++; } /* * Now check that if the regexp had n identical characters that * matchcount had at least that many matches. */ while (( *(p+1) && (case_sig ? (*(p+1) == *p) : (toupper(*(p+1))==toupper(*p))))) { p++; matchcount--; } if ( matchcount <= 0 ) { return False; } } str--; /* We've eaten the match char after the '*' */ if(do_match(str,p,case_sig,win9x_semantics)) { 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 (!win9x_semantics) { 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. * The 8.3 handling was rewritten by Ums Harald * This is the new 'NT style' matcher. *********************************************************/ BOOL mask_match(char *str, char *regexp, BOOL case_sig, BOOL trans2) { char *p; pstring t_pattern, t_filename, te_pattern, te_filename; fstring ebase,eext,sbase,sext; BOOL matched = False; BOOL win9x_semantics = (get_remote_arch() == RA_WIN95) && trans2; /* special case - if it is exactly the same then it always matches! */ if(exact_match(str, regexp, case_sig)) return True; /* Make local copies of str and regexp */ pstrcpy(t_pattern,regexp); pstrcpy(t_filename,str); if(trans2) { /* a special case for 16 bit apps */ if (strequal(t_pattern,"????????.???")) pstrcpy(t_pattern,"*"); #if 0 /* * Handle broken clients that send us old 8.3 format. */ pstring_sub(t_pattern,"????????","*"); pstring_sub(t_pattern,".???",".*"); #endif } #if 0 /* * Not sure if this is a good idea. JRA. */ if(trans2 && is_8_3(t_pattern,False) && is_8_3(t_filename,False)) trans2 = False; #endif #if 0 if (!strchr(t_filename,'.')) { pstrcat(t_filename,"."); } #endif /* Remove any *? and ** as they are meaningless */ for(p = t_pattern; *p; p++) while( *p == '*' && (p[1] == '?' || p[1] == '*')) (void)pstrcpy( &p[1], &p[2]); if (strequal(t_pattern,"*")) return(True); DEBUG(8,("mask_match str=<%s> regexp=<%s>, case_sig = %d\n", t_filename, t_pattern, case_sig)); if(trans2) { /* * Match each component of the regexp, split up by '.' * characters. */ char *fp, *rp, *cp2, *cp1; BOOL last_wcard_was_star = False; int num_path_components, num_regexp_components; pstrcpy(te_pattern,t_pattern); pstrcpy(te_filename,t_filename); /* * Remove multiple "*." patterns. */ pstring_sub(te_pattern, "*.*.", "*."); num_regexp_components = count_chars(te_pattern, '.'); num_path_components = count_chars(te_filename, '.'); /* * Check for special 'hack' case of "DIR a*z". - needs to match a.b.c...z */ if(num_regexp_components == 0) matched = do_match( te_filename, te_pattern, case_sig, win9x_semantics); else { for( cp1 = te_pattern, cp2 = te_filename; cp1;) { fp = strchr(cp2, '.'); if(fp) *fp = '\0'; rp = strchr(cp1, '.'); if(rp) *rp = '\0'; if(cp1[0] && cp1[strlen(cp1)-1] == '*') last_wcard_was_star = True; else last_wcard_was_star = False; if(!do_match(cp2, cp1, case_sig, win9x_semantics)) break; /* * Ugly ! Special case for Win9x *only*. If filename is XXXX and pattern extension * is '*' or all '?' then disallow match. */ if (win9x_semantics) { if (*cp2 == '\0' && str_is_all(cp1, '?')) break; } cp1 = rp ? rp + 1 : NULL; cp2 = fp ? fp + 1 : ""; if(last_wcard_was_star || ((cp1 != NULL) && (*cp1 == '*'))) { /* Eat the extra path components. */ int i; for(i = 0; i < num_path_components - num_regexp_components; i++) { fp = strchr(cp2, '.'); if(fp) *fp = '\0'; if((cp1 != NULL) && do_match( cp2, cp1, case_sig, win9x_semantics)) { cp2 = fp ? fp + 1 : ""; break; } cp2 = fp ? fp + 1 : ""; } num_path_components -= i; } } if(cp1 == NULL && ((*cp2 == '\0') || last_wcard_was_star)) matched = True; } } else { /* ------------------------------------------------- * Behaviour of Win95 * for 8.3 filenames and 8.3 Wildcards * ------------------------------------------------- */ if (strequal (t_filename, ".")) { /* * Patterns: *.* *. ?. ? ????????.??? are valid. * */ if(strequal(t_pattern, "*.*") || strequal(t_pattern, "*.") || strequal(t_pattern, "????????.???") || strequal(t_pattern, "?.") || strequal(t_pattern, "?")) matched = True; } else if (strequal (t_filename, "..")) { /* * Patterns: *.* *. ?. ? *.? ????????.??? are valid. * */ if(strequal(t_pattern, "*.*") || strequal(t_pattern, "*.") || strequal(t_pattern, "?.") || strequal(t_pattern, "?") || strequal(t_pattern, "????????.???") || strequal(t_pattern, "*.?") || strequal(t_pattern, "?.*")) matched = True; } else { if ((p = strrchr (t_pattern, '.'))) { /* * Wildcard has a suffix. */ *p = 0; fstrcpy (ebase, t_pattern); if (p[1]) { fstrcpy (eext, p + 1); } else { /* pattern ends in DOT: treat as if there is no DOT */ *eext = 0; if (strequal (ebase, "*")) return (True); } } else { /* * No suffix for wildcard. */ fstrcpy (ebase, t_pattern); eext[0] = 0; } p = strrchr (t_filename, '.'); if (p && (p[1] == 0) ) { /* * Filename has an extension of '.' only. */ *p = 0; /* nuke dot at end of string */ p = 0; /* and treat it as if there is no extension */ } if (p) { /* * Filename has an extension. */ *p = 0; fstrcpy (sbase, t_filename); fstrcpy (sext, p + 1); if (*eext) { matched = do_match(sbase, ebase, case_sig, False) && do_match(sext, eext, case_sig, False); } else { /* pattern has no extension */ /* Really: match complete filename with pattern ??? means exactly 3 chars */ matched = do_match(str, ebase, case_sig, False); } } else { /* * Filename has no extension. */ fstrcpy (sbase, t_filename); fstrcpy (sext, ""); if (*eext) { /* pattern has extension */ matched = do_match(sbase, ebase, case_sig, False) && do_match(sext, eext, case_sig, False); } else { matched = do_match(sbase, ebase, case_sig, False); #ifdef EMULATE_WEIRD_W95_MATCHING /* * Even Microsoft has some problems * Behaviour Win95 -> local disk * is different from Win95 -> smb drive from Nt 4.0 * This branch would reflect the Win95 local disk behaviour */ if (!matched) { /* a? matches aa and a in w95 */ fstrcat (sbase, "."); matched = do_match(sbase, ebase, case_sig, False); } #endif } } } } DEBUG(8,("mask_match returning %d\n", matched)); return matched; } /**************************************************************************** become a daemon, discarding the controlling terminal ****************************************************************************/ void become_daemon(void) { if (fork()) { _exit(0); } /* detach from the terminal */ #ifdef HAVE_SETSID setsid(); #elif defined(TIOCNOTTY) { int i = sys_open("/dev/tty", O_RDWR, 0); if (i != -1) { ioctl(i, (int) TIOCNOTTY, (char *)0); close(i); } } #endif /* HAVE_SETSID */ /* Close fd's 0,1,2. Needed if started by rsh */ close_low_fds(); } /**************************************************************************** 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); } /**************************************************************************** set the length of a file from a filedescriptor. Returns 0 on success, -1 on failure. ****************************************************************************/ /* tpot vfs need to recode this function */ int set_filelen(int fd, SMB_OFF_T len) { /* According to W. R. Stevens advanced UNIX prog. Pure 4.3 BSD cannot extend a file with ftruncate. Provide alternate implementation for this */ #ifdef HAVE_FTRUNCATE_EXTEND return sys_ftruncate(fd, len); #else SMB_STRUCT_STAT st; char c = 0; SMB_OFF_T currpos = sys_lseek(fd, (SMB_OFF_T)0, SEEK_CUR); if(currpos == -1) 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(sys_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 sys_ftruncate(fd, len); if(sys_lseek(fd, len-1, SEEK_SET) != len -1) return -1; if(write(fd, &c, 1)!=1) return -1; /* Seek to where we were */ if(sys_lseek(fd, currpos, SEEK_SET) != currpos) return -1; return 0; #endif } #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 filename from a path name. Assumes dos style filenames. ****************************************************************************/ static char *filename_dos(char *path,char *buf) { char *p = strrchr(path,'\\'); if (!p) pstrcpy(buf,path); else pstrcpy(buf,p+1); return(buf); } /**************************************************************************** expand a pointer to be a particular size ****************************************************************************/ void *Realloc(void *p,size_t size) { void *ret=NULL; if (size == 0) { if (p) free(p); DEBUG(5,("Realloc asked for 0 bytes\n")); return 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",(int)size)); return(ret); } /**************************************************************************** free memory, checks for NULL ****************************************************************************/ void safe_free(void *p) { if (p != NULL) { free(p); } } /**************************************************************************** get my own name and IP ****************************************************************************/ BOOL get_myname(char *my_name) { pstring hostname; *hostname = 0; /* get my host name */ if (gethostname(hostname, sizeof(hostname)) == -1) { DEBUG(0,("gethostname failed\n")); return False; } /* Ensure null termination. */ hostname[sizeof(hostname)-1] = '\0'; if (my_name) { /* split off any parts after an initial . */ char *p = strchr(hostname,'.'); if (p) *p = 0; fstrcpy(my_name,hostname); } return(True); } /**************************************************************************** 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); } /**************************************************************************** Return true if a string could be a pure IP address. ****************************************************************************/ BOOL is_ipaddress(const char *str) { BOOL pure_address = True; int i; for (i=0; pure_address && str[i]; i++) if (!(isdigit((int)str[i]) || str[i] == '.')) pure_address = False; /* Check that a pure number is not misinterpreted as an IP */ pure_address = pure_address && (strchr(str, '.') != NULL); return pure_address; } /**************************************************************************** interpret an internet address or name into an IP address in 4 byte form ****************************************************************************/ uint32 interpret_addr(char *str) { struct hostent *hp; uint32 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 (is_ipaddress(str)) { 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; } if(hp->h_addr == NULL) { DEBUG(3,("Get_Hostbyname: host address is invalid for host %s\n",str)); return 0; } putip((char *)&res,(char *)hp->h_addr); } if (res == (uint32)-1) return(0); return(res); } /******************************************************************* a convenient addition to interpret_addr() ******************************************************************/ struct in_addr *interpret_addr2(char *str) { static struct in_addr ret; uint32 a = interpret_addr(str); ret.s_addr = a; return(&ret); } /******************************************************************* check if an IP is the 0.0.0.0 ******************************************************************/ BOOL zero_ip(struct in_addr ip) { uint32 a; putip((char *)&a,(char *)&ip); return(a == 0); } #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT)) /****************************************************************** Remove any mount options such as -rsize=2048,wsize=2048 etc. Based on a fix from . *******************************************************************/ static void strip_mount_options( pstring *str) { if (**str == '-') { char *p = *str; while(*p && !isspace(*p)) p++; while(*p && isspace(*p)) p++; if(*p) { pstring tmp_str; pstrcpy(tmp_str, p); pstrcpy(*str, tmp_str); } } } /******************************************************************* Patch from jkf@soton.ac.uk Split Luke's automount_server into YP lookup and string splitter so can easily implement automount_path(). As we may end up doing both, cache the last YP result. *******************************************************************/ #ifdef WITH_NISPLUS_HOME static char *automount_lookup(char *user_name) { static fstring last_key = ""; static pstring last_value = ""; char *nis_map = (char *)lp_nis_home_map_name(); char nis_domain[NIS_MAXNAMELEN + 1]; char buffer[NIS_MAXATTRVAL + 1]; nis_result *result; nis_object *object; entry_obj *entry; strncpy(nis_domain, (char *)nis_local_directory(), NIS_MAXNAMELEN); nis_domain[NIS_MAXNAMELEN] = '\0'; DEBUG(5, ("NIS+ Domain: %s\n", nis_domain)); if (strcmp(user_name, last_key)) { slprintf(buffer, sizeof(buffer)-1, "[%s=%s]%s.%s", "key", user_name, nis_map, nis_domain); DEBUG(5, ("NIS+ querystring: %s\n", buffer)); if (result = nis_list(buffer, RETURN_RESULT, NULL, NULL)) { if (result->status != NIS_SUCCESS) { DEBUG(3, ("NIS+ query failed: %s\n", nis_sperrno(result->status))); fstrcpy(last_key, ""); pstrcpy(last_value, ""); } else { object = result->objects.objects_val; if (object->zo_data.zo_type == ENTRY_OBJ) { entry = &object->zo_data.objdata_u.en_data; DEBUG(5, ("NIS+ entry type: %s\n", entry->en_type)); DEBUG(3, ("NIS+ result: %s\n", entry->en_cols.en_cols_val[1].ec_value.ec_value_val)); pstrcpy(last_value, entry->en_cols.en_cols_val[1].ec_value.ec_value_val); pstring_sub(last_value, "&", user_name); fstrcpy(last_key, user_name); } } } nis_freeresult(result); } strip_mount_options(&last_value); DEBUG(4, ("NIS+ Lookup: %s resulted in %s\n", user_name, last_value)); return last_value; } #else /* WITH_NISPLUS_HOME */ static char *automount_lookup(char *user_name) { static fstring last_key = ""; static pstring last_value = ""; int nis_error; /* returned by yp all functions */ char *nis_result; /* yp_match inits this */ int nis_result_len; /* and set this */ char *nis_domain; /* yp_get_default_domain inits this */ char *nis_map = (char *)lp_nis_home_map_name(); if ((nis_error = yp_get_default_domain(&nis_domain)) != 0) { DEBUG(3, ("YP Error: %s\n", yperr_string(nis_error))); return last_value; } DEBUG(5, ("NIS Domain: %s\n", nis_domain)); if (!strcmp(user_name, last_key)) { nis_result = last_value; nis_result_len = strlen(last_value); nis_error = 0; } else { if ((nis_error = yp_match(nis_domain, nis_map, user_name, strlen(user_name), &nis_result, &nis_result_len)) != 0) { DEBUG(3, ("YP Error: \"%s\" while looking up \"%s\" in map \"%s\"\n", yperr_string(nis_error), user_name, nis_map)); } if (!nis_error && nis_result_len >= sizeof(pstring)) { nis_result_len = sizeof(pstring)-1; } fstrcpy(last_key, user_name); strncpy(last_value, nis_result, nis_result_len); last_value[nis_result_len] = '\0'; } strip_mount_options(&last_value); DEBUG(4, ("YP Lookup: %s resulted in %s\n", user_name, last_value)); return last_value; } #endif /* WITH_NISPLUS_HOME */ #endif /******************************************************************* Patch from jkf@soton.ac.uk This is Luke's original function with the NIS lookup code moved out to a separate function. *******************************************************************/ static char *automount_server(char *user_name) { static pstring server_name; /* use the local machine name as the default */ /* this will be the default if WITH_AUTOMOUNT is not used or fails */ pstrcpy(server_name, local_machine); #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT)) if (lp_nis_home_map()) { int home_server_len; char *automount_value = automount_lookup(user_name); home_server_len = strcspn(automount_value,":"); DEBUG(5, ("NIS lookup succeeded. Home server length: %d\n",home_server_len)); if (home_server_len > sizeof(pstring)) { home_server_len = sizeof(pstring); } strncpy(server_name, automount_value, home_server_len); server_name[home_server_len] = '\0'; } #endif DEBUG(4,("Home server: %s\n", server_name)); return server_name; } /******************************************************************* Patch from jkf@soton.ac.uk Added this to implement %p (NIS auto-map version of %H) *******************************************************************/ static char *automount_path(char *user_name) { static pstring server_path; /* use the passwd entry as the default */ /* this will be the default if WITH_AUTOMOUNT is not used or fails */ /* pstrcpy() copes with get_user_home_dir() returning NULL */ pstrcpy(server_path, get_user_home_dir(user_name)); #if (defined(HAVE_NETGROUP) && defined (WITH_AUTOMOUNT)) if (lp_nis_home_map()) { char *home_path_start; char *automount_value = automount_lookup(user_name); home_path_start = strchr(automount_value,':'); if (home_path_start != NULL) { DEBUG(5, ("NIS lookup succeeded. Home path is: %s\n", home_path_start?(home_path_start+1):"")); pstrcpy(server_path, home_path_start+1); } } #endif DEBUG(4,("Home server path: %s\n", server_path)); return server_path; } /******************************************************************* Given a pointer to a %$(NAME) expand it as an environment variable. Return the number of characters by which the pointer should be advanced. Based on code by Branko Cibej When this is called p points at the '%' character. ********************************************************************/ static size_t expand_env_var(char *p, int len) { fstring envname; char *envval; char *q, *r; int copylen; if (p[1] != '$') return 1; if (p[2] != '(') return 2; /* * Look for the terminating ')'. */ if ((q = strchr(p,')')) == NULL) { DEBUG(0,("expand_env_var: Unterminated environment variable [%s]\n", p)); return 2; } /* * Extract the name from within the %$(NAME) string. */ r = p+3; copylen = MIN((q-r),(sizeof(envname)-1)); strncpy(envname,r,copylen); envname[copylen] = '\0'; if ((envval = getenv(envname)) == NULL) { DEBUG(0,("expand_env_var: Environment variable [%s] not set\n", envname)); return 2; } /* * Copy the full %$(NAME) into envname so it * can be replaced. */ copylen = MIN((q+1-p),(sizeof(envname)-1)); strncpy(envname,p,copylen); envname[copylen] = '\0'; string_sub(p,envname,envval,len); return 0; /* Allow the environment contents to be parsed. */ } /******************************************************************* Substitute strings with useful parameters. Rewritten by Stefaan A Eeckels and Paul Rippin . ********************************************************************/ void standard_sub_basic(char *str) { char *s, *p; char pidstr[10]; struct passwd *pass; char *username = sam_logon_in_ssb ? samlogon_user : sesssetup_user; for (s = str ; s && *s && (p = strchr(s,'%')); s = p ) { int l = sizeof(pstring) - (int)(p-str); if (l < 0) { DEBUG(0,("ERROR: string overflow by %d in standard_sub_basic(%.50s)\n", -l, str)); return; } switch (*(p+1)) { case 'G' : { if ((pass = Get_Pwnam(username,False))!=NULL) { string_sub(p,"%G",gidtoname(pass->pw_gid),l); } else { p += 2; } break; } case 'N' : string_sub(p,"%N", automount_server(username),l); break; case 'I' : string_sub(p,"%I", client_addr(),l); break; case 'L' : string_sub(p,"%L", local_machine,l); break; case 'M' : string_sub(p,"%M", client_name(),l); break; case 'R' : string_sub(p,"%R", remote_proto,l); break; case 'T' : string_sub(p,"%T", timestring(False),l); break; case 'U' : string_sub(p,"%U", username,l); break; case 'a' : string_sub(p,"%a", remote_arch,l); break; case 'd' : { slprintf(pidstr,sizeof(pidstr) - 1, "%d",(int)getpid()); string_sub(p,"%d", pidstr,l); break; } case 'h' : string_sub(p,"%h", myhostname(),l); break; case 'm' : string_sub(p,"%m", remote_machine,l); break; case 'v' : string_sub(p,"%v", VERSION,l); break; case '$' : p += expand_env_var(p,l); break; /* Expand environment variables */ case '\0': p++; break; /* don't run off end if last character is % */ default : p+=2; break; } } return; } /**************************************************************************** Do some standard substitutions in a string. ****************************************************************************/ void standard_sub_advanced(int snum, char *user, char *connectpath, gid_t gid, char *str) { char *p, *s, *home; for (s=str; (p=strchr(s, '%'));s=p) { int l = sizeof(pstring) - (int)(p-str); switch (*(p+1)) { case 'H': if ((home = get_user_home_dir(user))) { string_sub(p,"%H",home, l); } else { p += 2; } break; case 'P': string_sub(p,"%P", connectpath, l); break; case 'S': string_sub(p,"%S", lp_servicename(snum), l); break; case 'g': string_sub(p,"%g", gidtoname(gid), l); break; case 'u': string_sub(p,"%u", user, l); break; /* Patch from jkf@soton.ac.uk Left the %N (NIS * server name) in standard_sub_basic as it is * a feature for logon servers, hence uses the * username. The %p (NIS server path) code is * here as it is used instead of the default * "path =" string in [homes] and so needs the * service name, not the username. */ case 'p': string_sub(p,"%p", automount_path(lp_servicename(snum)), l); break; case '\0': p++; break; /* don't run off the end of the string */ default: p+=2; break; } } standard_sub_basic(str); } /**************************************************************************** Do some standard substitutions in a string. ****************************************************************************/ void standard_sub(connection_struct *conn, char *str) { if (conn==NULL) standard_sub_advanced(-1, "", "", -1, str); else standard_sub_advanced(SNUM(conn), conn->user, conn->connectpath, conn->gid, str); } /**************************************************************************** like standard_sub but by snum ****************************************************************************/ void standard_sub_snum(int snum, char *str) { standard_sub_advanced(snum, "", "", -1, str); } /******************************************************************* are two IPs on the same subnet? ********************************************************************/ BOOL same_net(struct in_addr ip1,struct in_addr ip2,struct in_addr mask) { uint32 net1,net2,nmask; nmask = ntohl(mask.s_addr); net1 = ntohl(ip1.s_addr); net2 = ntohl(ip2.s_addr); return((net1 & nmask) == (net2 & nmask)); } /**************************************************************************** a wrapper for gethostbyname() that tries with all lower and all upper case if the initial name fails ****************************************************************************/ struct hostent *Get_Hostbyname(const char *name) { char *name2 = strdup(name); struct hostent *ret; if (!name2) { DEBUG(0,("Memory allocation error in Get_Hostbyname! panic\n")); exit(0); } /* * This next test is redundent and causes some systems (with * broken isalnum() calls) problems. * JRA. */ #if 0 if (!isalnum(*name2)) { free(name2); return(NULL); } #endif /* 0 */ ret = sys_gethostbyname(name2); if (ret != NULL) { free(name2); return(ret); } /* try with all lowercase */ strlower(name2); ret = sys_gethostbyname(name2); if (ret != NULL) { free(name2); return(ret); } /* try with all uppercase */ strupper(name2); ret = sys_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(pid_t pid) { return(kill(pid,0) == 0 || errno != ESRCH); } /******************************************************************* turn a uid into a user name ********************************************************************/ char *uidtoname(uid_t uid) { static char name[40]; struct passwd *pass = sys_getpwuid(uid); if (pass) return(pass->pw_name); slprintf(name, sizeof(name) - 1, "%d",(int)uid); return(name); } /******************************************************************* turn a gid into a group name ********************************************************************/ char *gidtoname(gid_t gid) { static char name[40]; struct group *grp = getgrgid(gid); if (grp) return(grp->gr_name); slprintf(name,sizeof(name) - 1, "%d",(int)gid); return(name); } /******************************************************************* turn a user name into a uid ********************************************************************/ uid_t nametouid(const char *name) { struct passwd *pass; char *p; uid_t u; u = strtol(name, &p, 0); if (p != name) return u; pass = sys_getpwnam(name); if (pass) return(pass->pw_uid); return (uid_t)-1; } /******************************************************************* turn a group name into a gid ********************************************************************/ gid_t nametogid(const char *name) { struct group *grp; char *p; gid_t g; g = strtol(name, &p, 0); if (p != name) return g; grp = getgrnam(name); if (grp) return(grp->gr_gid); return (gid_t)-1; } /******************************************************************* something really nasty happened - panic! ********************************************************************/ void smb_panic(char *why) { char *cmd = lp_panic_action(); if (cmd && *cmd) { system(cmd); } DEBUG(0,("PANIC: %s\n", why)); dbgflush(); abort(); } /******************************************************************* a readdir wrapper which just returns the file name ********************************************************************/ char *readdirname(DIR *p) { SMB_STRUCT_DIRENT *ptr; char *dname; if (!p) return(NULL); ptr = (SMB_STRUCT_DIRENT *)sys_readdir(p); if (!ptr) return(NULL); dname = ptr->d_name; #ifdef NEXT2 if (telldir(p) < 0) return(NULL); #endif #ifdef HAVE_BROKEN_READDIR /* using /usr/ucb/cc is BAD */ dname = dname - 2; #endif { static pstring buf; memcpy(buf, dname, NAMLEN(ptr)+1); dname = buf; } return(dname); } /******************************************************************* Utility function used to decide if the last component of a path matches a (possibly wildcarded) entry in a namelist. ********************************************************************/ BOOL is_in_path(char *name, name_compare_entry *namelist) { pstring last_component; char *p; DEBUG(8, ("is_in_path: %s\n", name)); /* if we have no list it's obviously not in the path */ if((namelist == NULL ) || ((namelist != NULL) && (namelist[0].name == NULL))) { DEBUG(8,("is_in_path: no name list.\n")); return False; } /* Get the last component of the unix name. */ p = strrchr(name, '/'); strncpy(last_component, p ? ++p : name, sizeof(last_component)-1); last_component[sizeof(last_component)-1] = '\0'; for(; namelist->name != NULL; namelist++) { if(namelist->is_wild) { /* * Look for a wildcard match. Use the old * 'unix style' mask match, rather than the * new NT one. */ if (unix_mask_match(last_component, namelist->name, case_sensitive)) { DEBUG(8,("is_in_path: mask match succeeded\n")); return True; } } else { if((case_sensitive && (strcmp(last_component, namelist->name) == 0))|| (!case_sensitive && (StrCaseCmp(last_component, namelist->name) == 0))) { DEBUG(8,("is_in_path: match succeeded\n")); return True; } } } DEBUG(8,("is_in_path: match not found\n")); return False; } /******************************************************************* Strip a '/' separated list into an array of name_compare_enties structures suitable for passing to is_in_path(). We do this for speed so we can pre-parse all the names in the list and don't do it for each call to is_in_path(). namelist is modified here and is assumed to be a copy owned by the caller. We also check if the entry contains a wildcard to remove a potentially expensive call to mask_match if possible. ********************************************************************/ void set_namearray(name_compare_entry **ppname_array, char *namelist) { char *name_end; char *nameptr = namelist; int num_entries = 0; int i; (*ppname_array) = NULL; if((nameptr == NULL ) || ((nameptr != NULL) && (*nameptr == '\0'))) return; /* We need to make two passes over the string. The first to count the number of elements, the second to split it. */ while(*nameptr) { if ( *nameptr == '/' ) { /* cope with multiple (useless) /s) */ nameptr++; continue; } /* find the next / */ name_end = strchr(nameptr, '/'); /* oops - the last check for a / didn't find one. */ if (name_end == NULL) break; /* next segment please */ nameptr = name_end + 1; num_entries++; } if(num_entries == 0) return; if(( (*ppname_array) = (name_compare_entry *)malloc( (num_entries + 1) * sizeof(name_compare_entry))) == NULL) { DEBUG(0,("set_namearray: malloc fail\n")); return; } /* Now copy out the names */ nameptr = namelist; i = 0; while(*nameptr) { if ( *nameptr == '/' ) { /* cope with multiple (useless) /s) */ nameptr++; continue; } /* find the next / */ if ((name_end = strchr(nameptr, '/')) != NULL) { *name_end = 0; } /* oops - the last check for a / didn't find one. */ if(name_end == NULL) break; (*ppname_array)[i].is_wild = ((strchr( nameptr, '?')!=NULL) || (strchr( nameptr, '*')!=NULL)); if(((*ppname_array)[i].name = strdup(nameptr)) == NULL) { DEBUG(0,("set_namearray: malloc fail (1)\n")); return; } /* next segment please */ nameptr = name_end + 1; i++; } (*ppname_array)[i].name = NULL; return; } /**************************************************************************** routine to free a namearray. ****************************************************************************/ void free_namearray(name_compare_entry *name_array) { if(name_array == 0) return; if(name_array->name != NULL) free(name_array->name); free((char *)name_array); } /**************************************************************************** Pathetically try and map a 64 bit lock offset into 31 bits. I hate Windows :-). ****************************************************************************/ uint32 map_lock_offset(uint32 high, uint32 low) { unsigned int i; uint32 mask = 0; uint32 highcopy = high; /* * Try and find out how many significant bits there are in high. */ for(i = 0; highcopy; i++) highcopy >>= 1; /* * We use 31 bits not 32 here as POSIX * lock offsets may not be negative. */ mask = (~0) << (31 - i); if(low & mask) return 0; /* Fail. */ high <<= (31 - i); return (high|low); } /**************************************************************************** routine to do file locking ****************************************************************************/ BOOL fcntl_lock(int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type) { #if HAVE_FCNTL_LOCK SMB_STRUCT_FLOCK lock; int ret; #if defined(LARGE_SMB_OFF_T) /* * In the 64 bit locking case we store the original * values in case we have to map to a 32 bit lock on * a filesystem that doesn't support 64 bit locks. */ SMB_OFF_T orig_offset = offset; SMB_OFF_T orig_count = count; #endif /* LARGE_SMB_OFF_T */ DEBUG(8,("fcntl_lock %d %d %.0f %.0f %d\n",fd,op,(double)offset,(double)count,type)); lock.l_type = type; lock.l_whence = SEEK_SET; lock.l_start = offset; lock.l_len = count; lock.l_pid = 0; errno = 0; ret = fcntl(fd,op,&lock); if (errno == EFBIG) { if( DEBUGLVL( 0 )) { dbgtext("fcntl_lock: WARNING: lock request at offset %.0f, length %.0f returned\n", (double)offset,(double)count); dbgtext("a 'file too large' error. This can happen when using 64 bit lock offsets\n"); dbgtext("on 32 bit NFS mounted file systems. Retrying with 32 bit truncated length.\n"); } /* 32 bit NFS file system, retry with smaller offset */ errno = 0; lock.l_len = count & 0x7fffffff; 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 == SMB_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,(int)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 %.0f count %.0f op %d type %d (%s)\n", (double)offset,(double)count,op,type,strerror(errno))); /* perhaps it doesn't support this sort of locking?? */ if (errno == EINVAL) { #if defined(LARGE_SMB_OFF_T) { /* * Ok - if we get here then we have a 64 bit lock request * that has returned EINVAL. Try and map to 31 bits for offset * and length and try again. This may happen if a filesystem * doesn't support 64 bit offsets (efs/ufs) although the underlying * OS does. */ uint32 off_low = (orig_offset & 0xFFFFFFFF); uint32 off_high = ((orig_offset >> 32) & 0xFFFFFFFF); lock.l_len = (orig_count & 0x7FFFFFFF); lock.l_start = (SMB_OFF_T)map_lock_offset(off_high, off_low); ret = fcntl(fd,op,&lock); if (ret == -1) { if (errno == EINVAL) { DEBUG(3,("locking not supported? returning True\n")); return(True); } return False; } DEBUG(3,("64 -> 32 bit modified lock call successful\n")); return True; } #else /* LARGE_SMB_OFF_T */ DEBUG(3,("locking not supported? returning True\n")); return(True); #endif /* LARGE_SMB_OFF_T */ } return(False); } /* everything went OK */ DEBUG(8,("Lock call successful\n")); return(True); #else return(False); #endif } /******************************************************************* is the name specified one of my netbios names returns true is it is equal, false otherwise ********************************************************************/ BOOL is_myname(char *s) { int n; BOOL ret = False; for (n=0; my_netbios_names[n]; n++) { if (strequal(my_netbios_names[n], s)) ret=True; } DEBUG(8, ("is_myname(\"%s\") returns %d\n", s, ret)); return(ret); } /******************************************************************* set the horrid remote_arch string based on an enum. ********************************************************************/ void set_remote_arch(enum remote_arch_types type) { ra_type = type; switch( type ) { case RA_WFWG: fstrcpy(remote_arch, "WfWg"); return; case RA_OS2: fstrcpy(remote_arch, "OS2"); return; case RA_WIN95: fstrcpy(remote_arch, "Win95"); return; case RA_WINNT: fstrcpy(remote_arch, "WinNT"); return; case RA_WIN2K: fstrcpy(remote_arch, "Win2K"); return; case RA_SAMBA: fstrcpy(remote_arch,"Samba"); return; default: ra_type = RA_UNKNOWN; fstrcpy(remote_arch, "UNKNOWN"); break; } } /******************************************************************* Get the remote_arch type. ********************************************************************/ enum remote_arch_types get_remote_arch(void) { return ra_type; } void out_ascii(FILE *f, unsigned char *buf,int len) { int i; for (i=0;i(per_line/2)) fprintf(f, " "); while (n--) { fprintf(f, " "); } n = MIN(per_line/2,i%per_line); out_ascii(f,&buf[i-(i%per_line)],n); fprintf(f, " "); n = (i%per_line) - n; if (n>0) out_ascii(f,&buf[i-n],n); fprintf(f, "\n"); } } void print_asc(int level, unsigned char *buf,int len) { int i; for (i=0;i8) DEBUG(level,(" ")); while (n--) DEBUG(level,(" ")); n = MIN(8,i%16); print_asc(level,&buf[i-(i%16)],n); DEBUG(level,(" ")); n = (i%16) - n; if (n>0) print_asc(level,&buf[i-n],n); DEBUG(level,("\n")); } } char *tab_depth(int depth) { static pstring spaces; memset(spaces, ' ', depth * 4); spaces[depth * 4] = 0; return spaces; } /***************************************************************************** * Provide a checksum on a string * * Input: s - the null-terminated character string for which the checksum * will be calculated. * * Output: The checksum value calculated for s. * * **************************************************************************** */ int str_checksum(const char *s) { int res = 0; int c; int i=0; while(*s) { c = *s; res ^= (c << (i % 15)) ^ (c >> (15-(i%15))); s++; i++; } return(res); } /* str_checksum */ /***************************************************************** zero a memory area then free it. Used to catch bugs faster *****************************************************************/ void zero_free(void *p, size_t size) { memset(p, 0, size); free(p); } /***************************************************************** set our open file limit to a requested max and return the limit *****************************************************************/ int set_maxfiles(int requested_max) { #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE)) struct rlimit rlp; int saved_current_limit; if(getrlimit(RLIMIT_NOFILE, &rlp)) { DEBUG(0,("set_maxfiles: getrlimit (1) for RLIMIT_NOFILE failed with error %s\n", strerror(errno) )); /* just guess... */ return requested_max; } /* * Set the fd limit to be real_max_open_files + MAX_OPEN_FUDGEFACTOR to * account for the extra fd we need * as well as the log files and standard * handles etc. Save the limit we want to set in case * we are running on an OS that doesn't support this limit (AIX) * which always returns RLIM_INFINITY for rlp.rlim_max. */ saved_current_limit = rlp.rlim_cur = MIN(requested_max,rlp.rlim_max); if(setrlimit(RLIMIT_NOFILE, &rlp)) { DEBUG(0,("set_maxfiles: setrlimit for RLIMIT_NOFILE for %d files failed with error %s\n", (int)rlp.rlim_cur, strerror(errno) )); /* just guess... */ return saved_current_limit; } if(getrlimit(RLIMIT_NOFILE, &rlp)) { DEBUG(0,("set_maxfiles: getrlimit (2) for RLIMIT_NOFILE failed with error %s\n", strerror(errno) )); /* just guess... */ return saved_current_limit; } #if defined(RLIM_INFINITY) if(rlp.rlim_cur == RLIM_INFINITY) return saved_current_limit; #endif if((int)rlp.rlim_cur > saved_current_limit) return saved_current_limit; return rlp.rlim_cur; #else /* !defined(HAVE_GETRLIMIT) || !defined(RLIMIT_NOFILE) */ /* * No way to know - just guess... */ return requested_max; #endif } /***************************************************************** splits out the start of the key (HKLM or HKU) and the rest of the key *****************************************************************/ BOOL reg_split_key(char *full_keyname, uint32 *reg_type, char *key_name) { pstring tmp; if (!next_token(&full_keyname, tmp, "\\", sizeof(tmp))) { return False; } (*reg_type) = 0; DEBUG(10, ("reg_split_key: hive %s\n", tmp)); if (strequal(tmp, "HKLM") || strequal(tmp, "HKEY_LOCAL_MACHINE")) { (*reg_type) = HKEY_LOCAL_MACHINE; } else if (strequal(tmp, "HKU") || strequal(tmp, "HKEY_USERS")) { (*reg_type) = HKEY_USERS; } else { DEBUG(10,("reg_split_key: unrecognised hive key %s\n", tmp)); return False; } if (next_token(NULL, tmp, "\n\r", sizeof(tmp))) { fstrcpy(key_name, tmp); } else { key_name[0] = 0; } DEBUG(10, ("reg_split_key: name %s\n", key_name)); return True; } /***************************************************************** like mktemp() but make sure that no % characters are used % characters are bad for us because of the macro subs *****************************************************************/ char *smbd_mktemp(char *template) { char *p = mktemp(template); char *p2; SMB_STRUCT_STAT st; if (!p) return NULL; while ((p2=strchr(p,'%'))) { p2[0] = 'A'; while (sys_stat(p,&st) == 0 && p2[0] < 'Z') { /* damn, it exists */ p2[0]++; } if (p2[0] == 'Z') { /* oh well ... better return something */ p2[0] = '%'; return p; } } return p; } /***************************************************************** like strdup but for memory *****************************************************************/ void *memdup(void *p, size_t size) { void *p2; p2 = malloc(size); if (!p2) return NULL; memcpy(p2, p, size); return p2; } /***************************************************************** get local hostname and cache result *****************************************************************/ char *myhostname(void) { static pstring ret; if (ret[0] == 0) { get_myname(ret); } return ret; } /***************************************************************** a useful function for returning a path in the Samba lock directory *****************************************************************/ char *lock_path(char *name) { static pstring fname; pstrcpy(fname,lp_lockdir()); trim_string(fname,"","/"); if (!directory_exist(fname,NULL)) { mkdir(fname,0755); } pstrcat(fname,"/"); pstrcat(fname,name); return fname; } /******************************************************************* Given a filename - get its directory name NB: Returned in static storage. Caveats: o Not safe in thread environment. o Caller must not free. o If caller wishes to preserve, they should copy. ********************************************************************/ char *parent_dirname(const char *path) { static pstring dirpath; char *p; if (!path) return(NULL); pstrcpy(dirpath, path); p = strrchr(dirpath, '/'); /* Find final '/', if any */ if (!p) { pstrcpy(dirpath, "."); /* No final "/", so dir is "." */ } else { if (p == dirpath) ++p; /* For root "/", leave "/" in place */ *p = '\0'; } return dirpath; }