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/*
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"
static const char *last_ptr=NULL;
void set_first_token(char *ptr)
{
last_ptr = ptr;
}
/****************************************************************************
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(const char **ptr,char *buff,const char *sep, size_t bufsize)
{
const char *s;
BOOL quoted;
size_t len=1;
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; len < bufsize && *s && (quoted || !strchr(sep,*s)); s++) {
if (*s == '\"') {
quoted = !quoted;
} else {
len++;
*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, const char *sep)
{
const char *cp= last_ptr;
char *s, *ptr;
int ictok=0;
char **ret, **iret;
if (!sep) sep = " \t\n\r";
while(*cp && strchr(sep,*cp)) cp++;
/* nothing left? */
if (!*cp) return(NULL);
ptr=strdup(cp);
if (!ptr) return(NULL);
s=ptr;
do {
ictok++;
while(*s && (!strchr(sep,*s))) s++;
while(*s && strchr(sep,*s)) *s++=0;
} while(*s);
*ctok=ictok;
s=ptr;
if (!(ret=iret=(char **)malloc(ictok*sizeof(char *)))) {
SAFE_FREE(ptr);
return NULL;
}
while(ictok--) {
*iret++=s;
while(*s++);
while(!*s) s++;
}
SAFE_FREE(ptr);
return ret;
}
/*******************************************************************
case sensitive string compararison
********************************************************************/
int StrCmp(const char *s, const char *t)
{
if(lp_client_code_page() == KANJI_CODEPAGE)
{
int diff;
for (;;)
{
if (!*s || !*t)
return *s - *t;
else if (is_shift_jis_str (s) && is_shift_jis_str (t))
{
diff = ((int)(unsigned char) *s) - ((int)(unsigned char) *t);
if (diff) {
int w1, w2;
w1 = ((int)(unsigned char) *s << 8) | (unsigned char) *(s+1);
w2 = ((int)(unsigned char) *t << 8) | (unsigned char) *(t+1);
w1 = regularize_sjis(w1);
w2 = regularize_sjis(w2);
if (w1 != w2)
return diff;
}
else {
diff = ((int)(unsigned char) *(s+1)) - ((int)(unsigned char) *(t+1));
if (diff)
return diff;
}
s += 2;
t += 2;
}
else if (is_shift_jis_str (s))
return 1;
else if (is_shift_jis_str (t))
return -1;
else
{
diff = *s - *t;
if (diff)
return diff;
s++;
t++;
}
}
}
else
{
while (*s && *t && *s == *t)
{
s++;
t++;
}
return(*s - *t);
}
}
/*******************************************************************
case insensitive string compararison
********************************************************************/
int StrCaseCmp(const char *s, const char *t)
{
/* compare until we run out of string, either t or s, or find a difference */
/* We *must* use toupper rather than tolower here due to the
asynchronous upper to lower mapping.
*/
/*
* For completeness we should put in equivalent code for code pages
* 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but
* doubt anyone wants Samba to behave differently from Win95 and WinNT
* here. They both treat full width ascii characters as case senstive
* filenames (ie. they don't do the work we do here).
* JRA.
*/
if(lp_client_code_page() == KANJI_CODEPAGE)
{
/* Win95 treats full width ascii characters as case sensitive. */
int diff;
for (;;)
{
if (!*s || !*t)
return toupper (*s) - toupper (*t);
else if (is_shift_jis_str (s) && is_shift_jis_str (t))
{
diff = ((int)(unsigned char) *s) - ((int)(unsigned char) *t);
if (diff) {
int w1, w2;
w1 = ((int)(unsigned char) *s << 8) | (unsigned char) *(s+1);
w2 = ((int)(unsigned char) *t << 8) | (unsigned char) *(t+1);
w1 = regularize_sjis(w1);
w2 = regularize_sjis(w2);
diff = w1 - w2;
if (diff) {
#if !defined(KANJI_WIN95_COMPATIBILITY)
int c1, c2;
c1 = (w1 >> 8) & 0xff;
c2 = (w2 >> 8) & 0xff;
if (!is_sj_roman (c1) || !is_sj_roman (c2))
return diff;
diff = sj_ro_toupper2 (w1 & 0xff) - sj_ro_toupper2 (w2 & 0xff);
if (diff)
#endif /* KANJI_WIN95_COMPATIBILITY */
return diff;
}
}
#if !defined(KANJI_WIN95_COMPATIBILITY)
else if (is_sj_alph (*s))
{
diff = sj_toupper2 (*(s+1)) - sj_toupper2 (*(t+1));
}
else if (is_sj_greek (*s))
{
diff = sj_gr_toupper2 (*(s+1)) - sj_gr_toupper2 (*(t+1));
}
else if (is_sj_roman (*s))
{
diff = sj_ro_toupper2 (*(s+1)) - sj_ro_toupper2 (*(t+1));
}
#endif /* KANJI_WIN95_COMPATIBILITY */
else if (is_sj_russian(*s))
{
diff = sj_ru_toupper2 (*(s+1)) - sj_ru_toupper2 (*(t+1));
}
else {
diff = ((int)(unsigned char) *(s+1)) - ((int)(unsigned char) *(t+1));
}
if (diff)
return diff;
s += 2;
t += 2;
}
else if (is_shift_jis_str (s))
return 1;
else if (is_shift_jis_str (t))
return -1;
else
{
diff = toupper (*s) - toupper (*t);
if (diff)
return diff;
s++;
t++;
}
}
}
else
{
while (*s && *t && toupper(*s) == toupper(*t))
{
s++;
t++;
}
return(toupper(*s) - toupper(*t));
}
}
/*******************************************************************
case insensitive string compararison, length limited
********************************************************************/
int StrnCaseCmp(const char *s, const char *t, size_t n)
{
/* compare until we run out of string, either t or s, or chars */
/* We *must* use toupper rather than tolower here due to the
asynchronous upper to lower mapping.
*/
/*
* For completeness we should put in equivalent code for code pages
* 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but
* doubt anyone wants Samba to behave differently from Win95 and WinNT
* here. They both treat full width ascii characters as case senstive
* filenames (ie. they don't do the work we do here).
* JRA.
*/
if(lp_client_code_page() == KANJI_CODEPAGE)
{
/* Win95 treats full width ascii characters as case sensitive. */
int diff;
for (;n > 0;)
{
if (!*s || !*t)
return toupper (*s) - toupper (*t);
else if (is_shift_jis_str (s) && is_shift_jis_str (t))
{
diff = ((int)(unsigned char) *s) - ((int)(unsigned char) *t);
if (diff) {
int w1, w2;
w1 = ((int)(unsigned char) *s << 8) | (unsigned char) *(s+1);
w2 = ((int)(unsigned char) *t << 8) | (unsigned char) *(t+1);
w1 = regularize_sjis(w1);
w2 = regularize_sjis(w2);
diff = w1 - w2;
if (diff) {
#if !defined(KANJI_WIN95_COMPATIBILITY)
int c1, c2;
c1 = (w1 >> 8) & 0xff;
c2 = (w2 >> 8) & 0xff;
if (!is_sj_roman (c1) || !is_sj_roman (c2))
return diff;
diff = sj_ro_toupper2 (w1 & 0xff) - sj_ro_toupper2 (w2 & 0xff);
if (diff)
#endif /* KANJI_WIN95_COMPATIBILITY */
return diff;
}
}
#if !defined(KANJI_WIN95_COMPATIBILITY)
else if (is_sj_alph (*s))
{
diff = sj_toupper2 (*(s+1)) - sj_toupper2 (*(t+1));
}
else if (is_sj_greek (*s))
{
diff = sj_gr_toupper2 (*(s+1)) - sj_gr_toupper2 (*(t+1));
}
else if (is_sj_roman (*s))
{
diff = sj_ro_toupper2 (*(s+1)) - sj_ro_toupper2 (*(t+1));
}
#endif /* KANJI_WIN95_COMPATIBILITY */
else if (is_sj_russian (*s))
{
diff = sj_ru_toupper2 (*(s+1)) - sj_ru_toupper2 (*(t+1));
}
else {
diff = ((int)(unsigned char) *(s+1)) - ((int)(unsigned char) *(t+1));
}
if (diff)
return diff;
s += 2;
t += 2;
n -= 2;
}
else if (is_shift_jis_str (s))
return 1;
else if (is_shift_jis_str (t))
return -1;
else
{
diff = toupper (*s) - toupper (*t);
if (diff)
return diff;
s++;
t++;
n--;
}
}
return 0;
}
else
{
while (n && *s && *t && toupper(*s) == toupper(*t))
{
s++;
t++;
n--;
}
/* not run out of chars - strings are different lengths */
if (n)
return(toupper(*s) - toupper(*t));
/* identical up to where we run out of chars,
and strings are same length */
return(0);
}
}
/*******************************************************************
compare 2 strings - DOS codepage.
********************************************************************/
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 - UNIX codepage.
********************************************************************/
BOOL strequal_unix(const char *s1, const char *s2)
{
pstring dos_s1, dos_s2;
if (s1 == s2) return(True);
if (!s1 || !s2) return(False);
unix_to_dos(dos_s1, s1);
unix_to_dos(dos_s2, s2);
return(StrCaseCmp(dos_s1,dos_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 lower case
********************************************************************/
void strlower(char *s)
{
/*
* For completeness we should put in equivalent code for code pages
* 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but
* doubt anyone wants Samba to behave differently from Win95 and WinNT
* here. They both treat full width ascii characters as case senstive
* filenames (ie. they don't do the work we do here).
* JRA.
*/
if(lp_client_code_page() == KANJI_CODEPAGE)
{
while (*s)
{
/* Win95 treats full width ascii characters as case sensitive. */
if (is_shift_jis_str (s))
{
int w;
w = ((int)(unsigned char) s[0] << 8) | (unsigned char) s[1];
w = regularize_sjis(w);
s[0] = (w >> 8) & 0xff;
s[1] = w & 0xff;
#if !defined(KANJI_WIN95_COMPATIBILITY)
if (is_sj_upper (s[0], s[1]))
s[1] = sj_tolower (s[1]);
else if (is_sj_gr_upper (s[0], s[1]))
s[1] = sj_gr_tolower (s[1]);
else if (is_sj_ro_upper (s[0], s[1]))
s[1] = sj_ro_tolower (s[1]);
else
#endif /* KANJI_WIN95_COMPATIBILITY */
if (is_sj_ru_upper (s[0], s[1]))
s[1] = sj_ru_tolower (s[1]);
s += 2;
}
else if (is_kana (*s))
{
s++;
}
else
{
if (isupper(*s))
*s = tolower(*s);
s++;
}
}
}
else
{
while (*s)
{
size_t skip = get_character_len( *s );
if( skip != 0 )
s += skip;
else
{
if (isupper(*s))
*s = tolower(*s);
s++;
}
}
}
}
/*******************************************************************
convert a string to upper case
********************************************************************/
void strupper(char *s)
{
/*
* For completeness we should put in equivalent code for code pages
* 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but
* doubt anyone wants Samba to behave differently from Win95 and WinNT
* here. They both treat full width ascii characters as case senstive
* filenames (ie. they don't do the work we do here).
* JRA.
*/
if(lp_client_code_page() == KANJI_CODEPAGE)
{
while (*s)
{
/* Win95 treats full width ascii characters as case sensitive. */
if (is_shift_jis_str (s))
{
int w;
w = ((int)(unsigned char) s[0] << 8) | (unsigned char) s[1];
w = regularize_sjis(w);
s[0] = (w >> 8) & 0xff;
s[1] = w & 0xff;
#if !defined(KANJI_WIN95_COMPATIBILITY)
if (is_sj_lower (s[0], s[1]))
s[1] = sj_toupper (s[1]);
else if (is_sj_gr_lower (s[0], s[1]))
s[1] = sj_gr_toupper (s[1]);
else if (is_sj_ro_lower (s[0], s[1]))
s[1] = sj_ro_toupper (s[1]);
else
#endif /* KANJI_WIN95_COMPATIBILITY */
if (is_sj_ru_lower (s[0], s[1]))
s[1] = sj_ru_toupper (s[1]);
s += 2;
}
else if (is_kana (*s))
{
s++;
}
else
{
if (islower(*s))
*s = toupper(*s);
s++;
}
}
}
else
{
while (*s)
{
size_t skip = get_character_len( *s );
if( skip != 0 )
s += skip;
else
{
if (islower(*s))
*s = toupper(*s);
s++;
}
}
}
}
/* Convert a string to upper case, but don't modify it */
char *strupper_static(const char *s)
{
static pstring str;
pstrcpy(str, s);
strupper(str);
return str;
}
/*******************************************************************
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
****************************************************************************/
void string_replace(char *s,char oldc,char newc)
{
size_t skip;
/*
* sbcs optimization.
*/
if(!global_is_multibyte_codepage) {
while (*s) {
if (oldc == *s)
*s = newc;
s++;
}
} else {
while (*s)
{
skip = get_character_len( *s );
if( skip != 0 )
s += skip;
else
{
if (oldc == *s)
*s = newc;
s++;
}
}
}
}
/*******************************************************************
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.
16.oct.98, jdblair@cobaltnet.com.
********************************************************************/
size_t str_charnum(const char *s)
{
size_t len = 0;
/*
* sbcs optimization.
*/
if(!global_is_multibyte_codepage) {
return strlen(s);
} else {
while (*s != '\0') {
int skip = get_character_len(*s);
s += (skip ? skip : 1);
len++;
}
}
return len;
}
/*******************************************************************
* trim the specified elements off the front and back of a string
*
* s_len, front_len, back_len is length of string including '\0' at end.
* If, s, front, or back was NULL then each length should be 0.
* if "", then it should be 1, and so-on.
* if front or back was "string literal", then, lenght is equal to
* sizeof() that string literal.
********************************************************************/
BOOL trim_string( char *s, long s_len,
const char *front, const long front_len,
const char *back, const long back_len )
{
BOOL ret = False;
char *sP;
/* Ignore null or empty strings. */
if ( !s || (s[0] == '\0'))
return False;
sP = s;
/*
* remove "front" string from given "s", if it matches front part,
* repeatedly.
*/
if ( front && front_len > 1 ) {
while (( s_len >= front_len )&&
( memcmp( sP, front, front_len - 1 )) == 0 ) {
ret = True;
sP += ( front_len - 1 );
s_len -= ( front_len - 1 );
}
}
/*
* we'll memmove sP to s later, after we're done with
* back part removal, for minimizing copy.
*/
/*
* We split out the multibyte code page
* case here for speed purposes. Under a
* multibyte code page we need to walk the
* string forwards only and multiple times.
* Thanks to John Blair for finding this
* one. JRA.
*/
/*
* This JRA's comment is partly correct, but partly wrong.
* You can always check from "end" part, and if it did not match,
* it means there is no possibility of finding one.
* If you found matching point, mark them, then look from front
* if marking point suits multi-byte string rule.
* Kenichi Okuyama.
*/
if ( back && back_len > 1 && s_len >= back_len) {
char *bP = sP + s_len - back_len;
long b_len = s_len;
while (( b_len >= back_len )&&
( memcmp( bP, back, back_len - 1 ) == 0 )) {
bP -= ( back_len - 1 );
b_len -= ( back_len - 1 );
}
/*
* You're here, means you ether have found match multiple times,
* or you found none. If you've found match, then bP should be
* moving.
*/
if ( bP != sP + s_len - back_len ) {
bP += ( back_len - 1 ); /* slide bP to first matching point. */
if( !global_is_multibyte_codepage ) {
/* simply terminate */
(*bP) = '\0';
s_len = b_len;
ret = True;
} else {
/* trace string from start. */
char *cP = sP;
while ( cP < sP + s_len - back_len ) {
size_t skip;
skip = skip_multibyte_char( *cP );
cP += ( skip ? skip : 1 );
if ( cP == bP ) {
/* you found the match */
(*bP) = '\0';
ret = True;
s_len = b_len;
break;
}
while (( cP > bP )&&( bP < sP + s_len - back_len )) {
bP += ( back_len - 1 );
b_len += ( back_len - 1 );
}
}
}
}
}
/* if front found matching point */
if ( sP != s ) {
/* slide string to buffer top */
memmove( s, sP, s_len );
}
return ret;
}
/****************************************************************************
does a string have any uppercase chars in it?
****************************************************************************/
BOOL strhasupper(const char *s)
{
/*
* For completeness we should put in equivalent code for code pages
* 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but
* doubt anyone wants Samba to behave differently from Win95 and WinNT
* here. They both treat full width ascii characters as case senstive
* filenames (ie. they don't do the work we do here).
* JRA.
*/
if(lp_client_code_page() == KANJI_CODEPAGE)
{
while (*s)
{
/* Win95 treats full width ascii characters as case sensitive. */
if (is_shift_jis_str (s))
{
int w, c1, c2;
w = ((int)(unsigned char) s[0] << 8) | (unsigned char) s[1];
w = regularize_sjis(w);
c1 = (w >> 8) & 0xff;
c2 = w & 0xff;
#if !defined(KANJI_WIN95_COMPATIBILITY)
if (is_sj_upper (c1, c2))
return (True);
if (is_sj_gr_upper (c1, c2))
return (True);
if (is_sj_ro_upper (c1, c2))
return (True);
#endif /* KANJI_WIN95_COMPATIBILITY */
if (is_sj_ru_upper (c1, c2))
return (True);
s += 2;
} else if (is_kana (*s)) {
s++;
} else {
if (isupper(*s))
return(True);
s++;
}
}
}
else
{
while (*s)
{
size_t skip = get_character_len( *s );
if( skip != 0 )
s += skip;
else {
if (isupper(*s))
return(True);
s++;
}
}
}
return(False);
}
/****************************************************************************
does a string have any lowercase chars in it?
****************************************************************************/
BOOL strhaslower(const char *s)
{
/*
* For completeness we should put in equivalent code for code pages
* 949 (Korean hangul) and 950 (Big5 Traditional Chinese) here - but
* doubt anyone wants Samba to behave differently from Win95 and WinNT
* here. They both treat full width ascii characters as case senstive
* filenames (ie. they don't do the work we do here).
* JRA.
*/
if(lp_client_code_page() == KANJI_CODEPAGE)
{
while (*s)
{
/* Win95 treats full width ascii characters as case sensitive. */
if (is_shift_jis_str (s))
{
int w, c1, c2;
w = ((int)(unsigned char) s[0] << 8) | (unsigned char) s[1];
w = regularize_sjis(w);
c1 = (w >> 8) & 0xff;
c2 = w & 0xff;
#if !defined(KANJI_WIN95_COMPATIBILITY)
if (is_sj_lower (c1, c2))
return (True);
if (is_sj_gr_lower (c1, c2))
return (True);
if (is_sj_ro_lower (c1, c2))
return (True);
#endif /* KANJI_WIN95_COMPATIBILITY */
if (is_sj_ru_lower (c1, c2))
return (True);
s += 2;
} else if (is_kana (*s)) {
s++;
} else {
if (islower(*s))
return(True);
s++;
}
}
}
else
{
while (*s)
{
size_t skip = get_character_len( *s );
if( skip != 0 )
s += skip;
else {
if (islower(*s))
return(True);
s++;
}
}
}
return(False);
}
/****************************************************************************
find the number of chars in a string
****************************************************************************/
size_t count_chars(const char *s,char c)
{
size_t count=0;
while (*s) {
size_t skip = get_character_len( *s );
if( skip != 0 ) {
s += skip;
} else {
if (*s == c) {
count++;
}
s++;
}
}
return(count);
}
/*******************************************************************
Return True if a string consists only of one particular character.
********************************************************************/
BOOL str_is_all(const char *s,char c)
{
if(s == NULL)
return False;
if(!*s)
return False;
while (*s) {
size_t skip = get_character_len( *s );
if( skip != 0 ) {
s += skip;
} else {
if (*s != c)
return False;
s++;
}
}
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;
}
if ( src == dest) {
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));
if (maxlength > dest_len) {
memcpy(&dest[dest_len], src, maxlength - dest_len);
}
dest[maxlength] = 0;
return NULL;
}
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;
size_t buflen;
smb_ucs2_t *str_ucs, *other_ucs;
if (!dest) {
DEBUG(0,("ERROR: NULL dest in alpha_strcpy\n"));
return NULL;
}
if (!src) {
*dest = 0;
return dest;
}
/* Get UCS2 version of src string*/
buflen=2*strlen(src)+2;
if (buflen >= (2*maxlength))
buflen = 2*(maxlength - 1);
str_ucs = (smb_ucs2_t*)malloc(buflen);
if(!str_ucs) {
*dest=0;
return dest;
}
dos_to_unicode(str_ucs, src, buflen);
len = strlen_w(str_ucs);
if (!other_safe_chars)
other_safe_chars = "";
/* Get UCS2 version of other_safe_chars string*/
buflen=2*strlen(other_safe_chars)+2;
other_ucs = (smb_ucs2_t*)malloc(buflen);
if(!other_ucs) {
*dest=0;
SAFE_FREE(str_ucs);
return dest;
}
unix_to_unicode(other_ucs, other_safe_chars, buflen);
for(i = 0; i < len; i++) {
if(isupper_w(str_ucs[i]) || islower_w(str_ucs[i]) || isdigit_w(str_ucs[i]) || iscjk_w(str_ucs[i]) || strchr_w(other_ucs, str_ucs[i]))
;
else
str_ucs[i] = (smb_ucs2_t)'_'; /*This will work*/
}
unicode_to_dos(dest, str_ucs, maxlength);
SAFE_FREE(other_ucs);
SAFE_FREE(str_ucs);
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)
{
size_t skip;
char *d = dest;
if (!dest) {
return(NULL);
}
if (!src) {
*dest = 0;
return(dest);
}
if(!global_is_multibyte_codepage) {
while (n && *src) {
n--;
*d++ = *src++;
}
} else {
while (n && *src) {
skip = get_character_len( *src );
if( skip != 0 ) {
if (skip > n) break;
n -= skip;
while (skip--) *d++ = *src++;
} else {
n--;
*d++ = *src++;
}
}
}
*d = 0;
return(dest);
}
/****************************************************************************
Like strncpy but always spaces fill the rest. Make sure there is room!
The variable n should always be one less than the available size.
****************************************************************************/
char *strncpy_fill(char *dest, const char *src, size_t n)
{
size_t skip;
char *d = dest;
if (!dest) {
return(NULL);
}
if (!src);
else if(!global_is_multibyte_codepage) {
while (n && *src) {
n--;
*d++ = *src++;
}
} else {
while (n && *src) {
skip = get_character_len( *src );
if( skip != 0 ) {
if (skip > n) break;
n -= skip;
while (skip--) *d++ = *src++;
} else {
n--;
*d++ = *src++;
}
}
}
while (n--) *d++ = ' ';
*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(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;
const 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(hexchars, toupper(strhex[i]))))
{
break;
}
i++; /* next hex digit */
if (!(p2 = strchr(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;
const 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;
}
memmove( *dest, src, l+1 );
}
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 expansion is permitted.
****************************************************************************/
void string_sub(char *s,const char *pattern,const char *insert, size_t len, BOOL unixcode)
{
pstring buf;
char *p;
ssize_t ls,lp,li, i;
if (!insert || !pattern || !*pattern || !s) return;
if (lp_client_code_page() == KANJI_CODEPAGE)
for (i = 0; insert[i] && i < sizeof(pstring)-3; i++) {
if (is_shift_jis_str(&(insert[i]))) {
buf[i] = insert[i];
buf[i+1] = insert[i+1];
i++;
}
else switch (insert[i]) {
case '`':
case '"':
case '\'':
case ';':
case '$':
case '%':
case '\r':
case '\n':
buf[i] = '_';
break;
default:
buf[i] = insert[i];
break;
}
}
else
for (i = 0; insert[i] && i < sizeof(pstring)-3; i++) {
switch (insert[i]) {
case '`':
case '"':
case '\'':
case ';':
case '$':
case '%':
case '\r':
case '\n':
buf[i] = '_';
break;
default:
buf[i] = insert[i];
break;
}
}
buf[i] = '\0';
/* The insert string is dos code base.
If use as unix code, need to convert.
*/
if (unixcode) dos_to_unix(buf, buf);
ls = (ssize_t)strlen(s);
lp = (ssize_t)strlen(pattern);
li = (ssize_t)strlen(buf);
if (len == 0)
len = ls + 1; /* len is number of *bytes* */
while (lp <= ls && (p = strstr(s,pattern))) {
if (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);
}
memcpy(p, buf, li);
s = p + li;
ls += (li-lp);
}
}
void fstring_sub(char *s,const char *pattern,const char *insert, BOOL unixcode)
{
string_sub(s, pattern, insert, sizeof(fstring), unixcode);
}
void pstring_sub(char *s,const char *pattern,const char *insert, BOOL unixcode)
{
string_sub(s, pattern, insert, sizeof(pstring), unixcode);
}
/****************************************************************************
similar to string_sub() but allows for any character to be substituted.
Use with caution!
if len==0 then no expansion is permitted.
****************************************************************************/
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;
if (len == 0)
len = ls + 1; /* len is number of *bytes* */
while (lp <= ls && (p = strstr(s,pattern))) {
if (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);
}
}
/****************************************************************************
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(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
****************************************************************************/
const 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;
}
/*
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;
}
#ifndef HAVE_STRNLEN
/*******************************************************************
Some platforms don't have strnlen
********************************************************************/
size_t strnlen(const char *s, size_t n)
{
int i;
for (i=0; s[i] && i<n; i++)
/* noop */ ;
return i;
}
#endif
#ifndef HAVE_STRNDUP
/*******************************************************************
Some platforms don't have strndup.
********************************************************************/
char *strndup(const char *s, size_t n)
{
char *ret;
n = strnlen(s, n);
ret = malloc(n+1);
if (!ret)
return NULL;
memcpy(ret, s, n);
ret[n] = 0;
return ret;
}
#endif
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