1
0
mirror of https://github.com/samba-team/samba.git synced 2024-12-24 21:34:56 +03:00
samba-mirror/source3/lib/ldap_escape.c
Jeremy Allison acf9d61421 r4088: Get medieval on our ass about malloc.... :-). Take control of all our allocation
functions so we can funnel through some well known functions. Should help greatly with
malloc checking.
HEAD patch to follow.
Jeremy.
(This used to be commit 620f2e608f)
2007-10-10 10:53:32 -05:00

91 lines
1.9 KiB
C

/*
Unix SMB/CIFS implementation.
ldap filter argument escaping
Copyright (C) 1998, 1999, 2000 Luke Howard <lukeh@padl.com>,
Copyright (C) 2003 Andrew Bartlett <abartlet@samba.org>
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"
/**
* Escape a parameter to an LDAP filter string, so they cannot contain
* embeded ( ) * or \ chars which may cause it not to parse correctly.
*
* @param s The input string
*
* @return A string allocated with malloc(), containing the escaped string,
* and to be free()ed by the caller.
**/
char *escape_ldap_string_alloc(const char *s)
{
size_t len = strlen(s)+1;
char *output = SMB_MALLOC(len);
char *output_tmp;
const char *sub;
int i = 0;
char *p = output;
while (*s)
{
switch (*s)
{
case '*':
sub = "\\2a";
break;
case '(':
sub = "\\28";
break;
case ')':
sub = "\\29";
break;
case '\\':
sub = "\\5c";
break;
default:
sub = NULL;
break;
}
if (sub) {
len = len + 3;
output_tmp = SMB_REALLOC(output, len);
if (!output_tmp) {
SAFE_FREE(output);
return NULL;
}
output = output_tmp;
p = &output[i];
strncpy (p, sub, 3);
p += 3;
i += 3;
} else {
*p = *s;
p++;
i++;
}
s++;
}
*p = '\0';
return output;
}