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Diffstat (limited to 'source3/lib/util_str.c')
-rw-r--r-- | source3/lib/util_str.c | 1003 |
1 files changed, 1003 insertions, 0 deletions
diff --git a/source3/lib/util_str.c b/source3/lib/util_str.c new file mode 100644 index 0000000000..6fdca658cd --- /dev/null +++ b/source3/lib/util_str.c @@ -0,0 +1,1003 @@ +/* + Unix SMB/CIFS implementation. + Samba utility functions + Copyright (C) Andrew Tridgell 1992-2001 + Copyright (C) Simo Sorce 2001-2002 + + 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" + +/**************************************************************************** + 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, size_t bufsize) +{ + char *s; + BOOL quoted; + size_t len=1; + + 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_m(sep,*s)) s++; + + /* nothing left? */ + if (! *s) return(False); + + /* copy over the token */ + for (quoted = False; len < bufsize && *s && (quoted || !strchr_m(sep,*s)); s++) { + if (*s == '\"') { + quoted = !quoted; + } else { + len++; + *buff++ = *s; + } + } + + *ptr = (*s) ? s+1 : s; + *buff = 0; + + return(True); +} + + + +/**************************************************************************** +This is like next_token but is not re-entrant and "remembers" the first +parameter so you can pass NULL. This is useful for user interface code +but beware the fact that it is not re-entrant! +****************************************************************************/ +static char *last_ptr=NULL; + +BOOL next_token_nr(char **ptr,char *buff,char *sep, size_t bufsize) +{ + BOOL ret; + if (!ptr) ptr = &last_ptr; + + ret = next_token(ptr, buff, sep, bufsize); + last_ptr = *ptr; + return ret; +} + +static uint16 tmpbuf[sizeof(pstring)]; + +void set_first_token(char *ptr) +{ + last_ptr = ptr; +} + + +/**************************************************************************** +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_m(sep,*s)) s++; + + /* nothing left? */ + if (!*s) return(NULL); + + do { + ictok++; + while(*s && (!strchr_m(sep,*s))) s++; + while(*s && strchr_m(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; +} + +/******************************************************************* + case insensitive string compararison +********************************************************************/ +int StrCaseCmp(const char *s, const char *t) +{ + pstring buf1, buf2; + unix_strupper(s, strlen(s)+1, buf1, sizeof(buf1)); + unix_strupper(t, strlen(t)+1, buf2, sizeof(buf2)); + return strcmp(buf1,buf2); +} + +/******************************************************************* + case insensitive string compararison, length limited +********************************************************************/ +int StrnCaseCmp(const char *s, const char *t, size_t n) +{ + pstring buf1, buf2; + unix_strupper(s, strlen(s)+1, buf1, sizeof(buf1)); + unix_strupper(t, strlen(t)+1, buf2, sizeof(buf2)); + return strncmp(buf1,buf2,n); +} + +/******************************************************************* + compare 2 strings +********************************************************************/ +BOOL strequal(const char *s1, const 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(const char *s1,const char *s2,size_t 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(const char *s1,const char *s2) +{ + if (s1 == s2) return(True); + if (!s1 || !s2) return(False); + + return(strcmp(s1,s2)==0); +} + +/*************************************************************************** +Do a case-insensitive, whitespace-ignoring string compare. +***************************************************************************/ +int strwicmp(const char *psz1, const char *psz2) +{ + /* if BOTH strings are NULL, return TRUE, if ONE is NULL return */ + /* appropriate value. */ + if (psz1 == psz2) + return (0); + else if (psz1 == NULL) + return (-1); + else if (psz2 == NULL) + return (1); + + /* sync the strings on first non-whitespace */ + while (1) + { + while (isspace((int)*psz1)) + psz1++; + while (isspace((int)*psz2)) + psz2++; + if (toupper(*psz1) != toupper(*psz2) || *psz1 == '\0' + || *psz2 == '\0') + break; + psz1++; + psz2++; + } + return (*psz1 - *psz2); +} + + +/******************************************************************* + convert a string to "normal" form +********************************************************************/ +void strnorm(char *s) +{ + extern int case_default; + if (case_default == CASE_UPPER) + strupper(s); + else + strlower(s); +} + +/******************************************************************* +check if a string is in "normal" case +********************************************************************/ +BOOL strisnormal(char *s) +{ + extern int case_default; + if (case_default == CASE_UPPER) + return(!strhaslower(s)); + + return(!strhasupper(s)); +} + + +/**************************************************************************** + string replace + NOTE: oldc and newc must be 7 bit characters +****************************************************************************/ +void string_replace(char *s,char oldc,char newc) +{ + push_ucs2(NULL, tmpbuf,s, sizeof(tmpbuf), STR_TERMINATE); + string_replace_w(tmpbuf, UCS2_CHAR(oldc), UCS2_CHAR(newc)); + pull_ucs2(NULL, s, tmpbuf, -1, sizeof(tmpbuf), STR_TERMINATE); +} + + +/******************************************************************* +skip past some strings in a buffer +********************************************************************/ +char *skip_string(char *buf,size_t n) +{ + while (n--) + buf += strlen(buf) + 1; + return(buf); +} + +/******************************************************************* + Count the number of characters in a string. Normally this will + be the same as the number of bytes in a string for single byte strings, + but will be different for multibyte. +********************************************************************/ +size_t str_charnum(const char *s) +{ + push_ucs2(NULL, tmpbuf,s, sizeof(tmpbuf), STR_TERMINATE); + return strlen_w(tmpbuf); +} + +/******************************************************************* +trim the specified elements off the front and back of a string +********************************************************************/ + +BOOL trim_string(char *s,const char *front,const char *back) +{ + BOOL ret = False; + size_t front_len; + size_t back_len; + size_t len; + + /* Ignore null or empty strings. */ + if (!s || (s[0] == '\0')) + return False; + + front_len = front? strlen(front) : 0; + back_len = back? strlen(back) : 0; + + len = strlen(s); + + if (front_len) { + while (len && strncmp(s, front, front_len)==0) { + memcpy(s, s+front_len, (len-front_len)+1); + len -= front_len; + ret=True; + } + } + + if (back_len) { + while (strncmp(s+len-back_len,back,back_len)==0) { + s[len-back_len]='\0'; + len -= back_len; + ret=True; + } + } + return ret; +} + + +/**************************************************************************** +does a string have any uppercase chars in it? +****************************************************************************/ +BOOL strhasupper(const char *s) +{ + smb_ucs2_t *ptr; + push_ucs2(NULL, tmpbuf,s, sizeof(tmpbuf), STR_TERMINATE); + for(ptr=tmpbuf;*ptr;ptr++) + if(isupper_w(*ptr)) return True; + return(False); +} + +/**************************************************************************** +does a string have any lowercase chars in it? +****************************************************************************/ +BOOL strhaslower(const char *s) +{ + smb_ucs2_t *ptr; + push_ucs2(NULL, tmpbuf,s, sizeof(tmpbuf), STR_TERMINATE); + for(ptr=tmpbuf;*ptr;ptr++) + if(islower_w(*ptr)) return True; + return(False); +} + +/**************************************************************************** +find the number of 'c' chars in a string +****************************************************************************/ +size_t count_chars(const char *s,char c) +{ + smb_ucs2_t *ptr; + int count; + push_ucs2(NULL, tmpbuf,s, sizeof(tmpbuf), STR_TERMINATE); + for(count=0,ptr=tmpbuf;*ptr;ptr++) if(*ptr==UCS2_CHAR(c)) count++; + return(count); +} + +/******************************************************************* +Return True if a string consists only of one particular character. +********************************************************************/ + +BOOL str_is_all(const char *s,char c) +{ + smb_ucs2_t *ptr; + + if(s == NULL) return False; + if(!*s) return False; + + push_ucs2(NULL, tmpbuf,s, sizeof(tmpbuf), STR_TERMINATE); + for(ptr=tmpbuf;*ptr;ptr++) if(*ptr!=UCS2_CHAR(c)) return False; + + return True; +} + +/******************************************************************* +safe string copy into a known length string. maxlength does not +include the terminating zero. +********************************************************************/ + +char *safe_strcpy(char *dest,const char *src, size_t maxlength) +{ + size_t len; + + if (!dest) { + DEBUG(0,("ERROR: NULL dest in safe_strcpy\n")); + return NULL; + } + + if (!src) { + *dest = 0; + return dest; + } + + len = strlen(src); + + if (len > maxlength) { + DEBUG(0,("ERROR: string overflow by %d in safe_strcpy [%.50s]\n", + (int)(len-maxlength), src)); + len = maxlength; + } + + memmove(dest, src, len); + dest[len] = 0; + return dest; +} + +/******************************************************************* +safe string cat into a string. maxlength does not +include the terminating zero. +********************************************************************/ + +char *safe_strcat(char *dest, const char *src, size_t maxlength) +{ + size_t src_len, dest_len; + + if (!dest) { + DEBUG(0,("ERROR: NULL dest in safe_strcat\n")); + return NULL; + } + + if (!src) { + return dest; + } + + src_len = strlen(src); + dest_len = strlen(dest); + + if (src_len + dest_len > maxlength) { + DEBUG(0,("ERROR: string overflow by %d in safe_strcat [%.50s]\n", + (int)(src_len + dest_len - maxlength), src)); + src_len = maxlength - dest_len; + } + + memcpy(&dest[dest_len], src, src_len); + dest[dest_len + src_len] = 0; + return dest; +} + +/******************************************************************* + Paranoid strcpy into a buffer of given length (includes terminating + zero. Strips out all but 'a-Z0-9' and the character in other_safe_chars + and replaces with '_'. Deliberately does *NOT* check for multibyte + characters. Don't change it ! +********************************************************************/ + +char *alpha_strcpy(char *dest, const char *src, const char *other_safe_chars, size_t maxlength) +{ + size_t len, i; + + if (!dest) { + DEBUG(0,("ERROR: NULL dest in alpha_strcpy\n")); + return NULL; + } + + if (!src) { + *dest = 0; + return dest; + } + + len = strlen(src); + if (len >= maxlength) + len = maxlength - 1; + + if (!other_safe_chars) + other_safe_chars = ""; + + for(i = 0; i < len; i++) { + int val = (src[i] & 0xff); + if(isupper(val) || islower(val) || isdigit(val) || strchr_m(other_safe_chars, val)) + dest[i] = src[i]; + else + dest[i] = '_'; + } + + dest[i] = '\0'; + + return dest; +} + +/**************************************************************************** + Like strncpy but always null terminates. Make sure there is room! + The variable n should always be one less than the available size. +****************************************************************************/ + +char *StrnCpy(char *dest,const char *src,size_t n) +{ + char *d = dest; + if (!dest) return(NULL); + if (!src) { + *dest = 0; + return(dest); + } + while (n-- && (*d++ = *src++)) ; + *d = 0; + return(dest); +} + +/**************************************************************************** +like strncpy but copies up to the character marker. always null terminates. +returns a pointer to the character marker in the source string (src). +****************************************************************************/ +char *strncpyn(char *dest, const char *src,size_t n, char c) +{ + char *p; + size_t str_len; + + p = strchr_m(src, c); + if (p == NULL) + { + DEBUG(5, ("strncpyn: separator character (%c) not found\n", c)); + return NULL; + } + + str_len = PTR_DIFF(p, src); + strncpy(dest, src, MIN(n, str_len)); + dest[str_len] = '\0'; + + return p; +} + + +/************************************************************* + Routine to get hex characters and turn them into a 16 byte array. + the array can be variable length, and any non-hex-numeric + characters are skipped. "0xnn" or "0Xnn" is specially catered + for. + + valid examples: "0A5D15"; "0x15, 0x49, 0xa2"; "59\ta9\te3\n" + +**************************************************************/ +size_t strhex_to_str(char *p, size_t len, const char *strhex) +{ + size_t i; + size_t num_chars = 0; + unsigned char lonybble, hinybble; + char *hexchars = "0123456789ABCDEF"; + char *p1 = NULL, *p2 = NULL; + + for (i = 0; i < len && strhex[i] != 0; i++) + { + if (strnequal(hexchars, "0x", 2)) + { + i++; /* skip two chars */ + continue; + } + + if (!(p1 = strchr_m(hexchars, toupper(strhex[i])))) + { + break; + } + + i++; /* next hex digit */ + + if (!(p2 = strchr_m(hexchars, toupper(strhex[i])))) + { + break; + } + + /* get the two nybbles */ + hinybble = PTR_DIFF(p1, hexchars); + lonybble = PTR_DIFF(p2, hexchars); + + p[num_chars] = (hinybble << 4) | lonybble; + num_chars++; + + p1 = NULL; + p2 = NULL; + } + return num_chars; +} + +/**************************************************************************** +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,sizeof(tok))) { + 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 +****************************************************************************/ +static BOOL string_init(char **dest,const char *src) +{ + size_t l; + if (!src) + src = ""; + + l = strlen(src); + + if (l == 0) + { + if (!null_string) { + if((null_string = (char *)malloc(1)) == NULL) { + DEBUG(0,("string_init: malloc fail for null_string.\n")); + return False; + } + *null_string = 0; + } + *dest = null_string; + } + else + { + (*dest) = (char *)malloc(l+1); + if ((*dest) == NULL) { + DEBUG(0,("Out of memory in string_init\n")); + return False; + } + + pstrcpy(*dest,src); + } + return(True); +} + +/**************************************************************************** +free a string value +****************************************************************************/ +void string_free(char **s) +{ + if (!s || !(*s)) return; + if (*s == null_string) + *s = NULL; + SAFE_FREE(*s); +} + +/**************************************************************************** +set a string value, allocing the space for the string, and deallocating any +existing space +****************************************************************************/ +BOOL string_set(char **dest,const 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. + +any of " ; ' $ or ` in the insert string are replaced with _ +if len==0 then no length check is performed +****************************************************************************/ +void string_sub(char *s,const char *pattern,const char *insert, size_t len) +{ + char *p; + ssize_t ls,lp,li, i; + + if (!insert || !pattern || !s) return; + + ls = (ssize_t)strlen(s); + lp = (ssize_t)strlen(pattern); + li = (ssize_t)strlen(insert); + + if (!*pattern) return; + + while (lp <= ls && (p = strstr(s,pattern))) { + if (len && (ls + (li-lp) >= len)) { + DEBUG(0,("ERROR: string overflow by %d in string_sub(%.50s, %d)\n", + (int)(ls + (li-lp) - len), + pattern, (int)len)); + break; + } + if (li != lp) { + memmove(p+li,p+lp,strlen(p+lp)+1); + } + for (i=0;i<li;i++) { + switch (insert[i]) { + case '`': + case '"': + case '\'': + case ';': + case '$': + case '%': + case '\r': + case '\n': + p[i] = '_'; + break; + default: + p[i] = insert[i]; + } + } + s = p + li; + ls += (li-lp); + } +} + +void fstring_sub(char *s,const char *pattern,const char *insert) +{ + string_sub(s, pattern, insert, sizeof(fstring)); +} + +void pstring_sub(char *s,const char *pattern,const char *insert) +{ + string_sub(s, pattern, insert, sizeof(pstring)); +} + +/**************************************************************************** +similar to string_sub() but allows for any character to be substituted. +Use with caution! +if len==0 then no length check is performed +****************************************************************************/ +void all_string_sub(char *s,const char *pattern,const char *insert, size_t len) +{ + char *p; + ssize_t ls,lp,li; + + if (!insert || !pattern || !s) return; + + ls = (ssize_t)strlen(s); + lp = (ssize_t)strlen(pattern); + li = (ssize_t)strlen(insert); + + if (!*pattern) return; + + while (lp <= ls && (p = strstr(s,pattern))) { + if (len && (ls + (li-lp) >= len)) { + DEBUG(0,("ERROR: string overflow by %d in all_string_sub(%.50s, %d)\n", + (int)(ls + (li-lp) - len), + pattern, (int)len)); + break; + } + if (li != lp) { + memmove(p+li,p+lp,strlen(p+lp)+1); + } + memcpy(p, insert, li); + s = p + li; + ls += (li-lp); + } +} + +/**************************************************************************** +similar to all_string_sub but for unicode strings. +return a new allocate unicode string. +len is the number of bytes, not chars + similar to string_sub() but allows for any character to be substituted. + Use with caution! + if len==0 then no length check is performed +****************************************************************************/ + +smb_ucs2_t *all_string_sub_w(const smb_ucs2_t *s, const smb_ucs2_t *pattern, + const smb_ucs2_t *insert) +{ + smb_ucs2_t *r, *rp, *sp; + size_t lr, lp, li, lt; + + if (!insert || !pattern || !*pattern || !s) return NULL; + + lt = (size_t)strlen_w(s); + lp = (size_t)strlen_w(pattern); + li = (size_t)strlen_w(insert); + + if (li > lp) { + smb_ucs2_t *st = s; + int ld = li - lp; + while ((sp = strstr_w(st, pattern))) { + st = sp + lp; + lt += ld; + } + } + + r = rp = (smb_ucs2_t *)malloc((lt + 1)*(sizeof(smb_ucs2_t))); + if (!r) { + DEBUG(0, ("all_string_sub_w: out of memory!\n")); + return NULL; + } + + while ((sp = strstr_w(s, pattern))) { + memcpy(rp, s, (sp - s)); + rp += ((sp - s) / sizeof(smb_ucs2_t)); + memcpy(rp, insert, (li * sizeof(smb_ucs2_t))); + s = sp + lp; + rp += li; + } + lr = ((rp - r) / sizeof(smb_ucs2_t)); + if (lr < lt) { + memcpy(rp, s, ((lt - lr) * sizeof(smb_ucs2_t))); + rp += (lt - lr); + } + *rp = 0; + + return r; +} + +smb_ucs2_t *all_string_sub_wa(smb_ucs2_t *s, const char *pattern, + const char *insert) +{ + wpstring p, i; + + if (!insert || !pattern || !s) return NULL; + push_ucs2(NULL, p, pattern, sizeof(wpstring) - 1, STR_TERMINATE); + push_ucs2(NULL, i, insert, sizeof(wpstring) - 1, STR_TERMINATE); + return all_string_sub_w(s, p, i); +} + +/**************************************************************************** + splits out the front and back at a separator. +****************************************************************************/ +void split_at_last_component(char *path, char *front, char sep, char *back) +{ + char *p = strrchr_m(path, sep); + + if (p != NULL) + { + *p = 0; + } + if (front != NULL) + { + pstrcpy(front, path); + } + if (p != NULL) + { + if (back != NULL) + { + pstrcpy(back, p+1); + } + *p = '\\'; + } + else + { + if (back != NULL) + { + back[0] = 0; + } + } +} + + +/**************************************************************************** +write an octal as a string +****************************************************************************/ +char *octal_string(int i) +{ + static char ret[64]; + if (i == -1) { + return "-1"; + } + slprintf(ret, sizeof(ret)-1, "0%o", i); + return ret; +} + + +/**************************************************************************** +truncate a string at a specified length +****************************************************************************/ +char *string_truncate(char *s, int length) +{ + if (s && strlen(s) > length) { + s[length] = 0; + } + return s; +} + + +/**************************************************************************** +strchr and strrchr_m are very hard to do on general multi-byte strings. +we convert via ucs2 for now +****************************************************************************/ +char *strchr_m(const char *s, char c) +{ + wpstring ws; + pstring s2; + smb_ucs2_t *p; + + push_ucs2(NULL, ws, s, sizeof(ws), STR_TERMINATE); + p = strchr_w(ws, UCS2_CHAR(c)); + if (!p) return NULL; + *p = 0; + pull_ucs2_pstring(s2, ws); + return (char *)(s+strlen(s2)); +} + +char *strrchr_m(const char *s, char c) +{ + wpstring ws; + pstring s2; + smb_ucs2_t *p; + + push_ucs2(NULL, ws, s, sizeof(ws), STR_TERMINATE); + p = strrchr_w(ws, UCS2_CHAR(c)); + if (!p) return NULL; + *p = 0; + pull_ucs2_pstring(s2, ws); + return (char *)(s+strlen(s2)); +} + +/******************************************************************* + convert a string to lower case +********************************************************************/ +void strlower_m(char *s) +{ + /* this is quite a common operation, so we want it to be + fast. We optimise for the ascii case, knowing that all our + supported multi-byte character sets are ascii-compatible + (ie. they match for the first 128 chars) */ + while (*s && !(((unsigned char)s[0]) & 0x7F)) { + *s++ = tolower((unsigned char)*s); + } + + if (!*s) return; + + /* I assume that lowercased string takes the same number of bytes + * as source string even in UTF-8 encoding. (VIV) */ + unix_strlower(s,strlen(s)+1,s,strlen(s)+1); +} + +/******************************************************************* + convert a string to upper case +********************************************************************/ +void strupper_m(char *s) +{ + /* this is quite a common operation, so we want it to be + fast. We optimise for the ascii case, knowing that all our + supported multi-byte character sets are ascii-compatible + (ie. they match for the first 128 chars) */ + while (*s && !(((unsigned char)s[0]) & 0x7F)) { + *s++ = toupper((unsigned char)*s); + } + + if (!*s) return; + + /* I assume that lowercased string takes the same number of bytes + * as source string even in multibyte encoding. (VIV) */ + unix_strupper(s,strlen(s)+1,s,strlen(s)+1); +} + +/* + return a RFC2254 binary string representation of a buffer + used in LDAP filters + caller must free +*/ +char *binary_string(char *buf, int len) +{ + char *s; + int i, j; + const char *hex = "0123456789ABCDEF"; + s = malloc(len * 3 + 1); + if (!s) return NULL; + for (j=i=0;i<len;i++) { + s[j] = '\\'; + s[j+1] = hex[((unsigned char)buf[i]) >> 4]; + s[j+2] = hex[((unsigned char)buf[i]) & 0xF]; + j += 3; + } + s[j] = 0; + return s; +} + + +/* Just a typesafety wrapper for snprintf into a pstring */ +int pstr_sprintf(pstring s, const char *fmt, ...) +{ + va_list ap; + int ret; + + va_start(ap, fmt); + ret = vsnprintf(s, PSTRING_LEN, fmt, ap); + va_end(ap); + return ret; +} + + +/* Just a typesafety wrapper for snprintf into a fstring */ +int fstr_sprintf(fstring s, const char *fmt, ...) +{ + va_list ap; + int ret; + + va_start(ap, fmt); + ret = vsnprintf(s, FSTRING_LEN, fmt, ap); + va_end(ap); + return ret; +} + + +#ifndef HAVE_STRNDUP +/******************************************************************* +some platforms don't have strndup +********************************************************************/ + char *strndup(const char *s, size_t n) +{ + char *ret; + int i; + for (i=0;s[i] && i<n;i++) ; + + ret = malloc(i+1); + if (!ret) return NULL; + memcpy(ret, s, i); + ret[i] = 0; + return ret; +} +#endif |