| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 | ldap filter argument escaping
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| 4 |
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| 5 | Copyright (C) 1998, 1999, 2000 Luke Howard <[email protected]>,
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| 6 | Copyright (C) 2003 Andrew Bartlett <[email protected]>
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| 7 |
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| 8 |
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| 9 | This program is free software; you can redistribute it and/or modify
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| 10 | it under the terms of the GNU General Public License as published by
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| 11 | the Free Software Foundation; either version 3 of the License, or
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| 12 | (at your option) any later version.
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| 13 |
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| 14 | This program is distributed in the hope that it will be useful,
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| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 17 | GNU General Public License for more details.
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| 18 |
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| 19 | You should have received a copy of the GNU General Public License
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| 20 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 21 | */
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| 22 |
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| 23 | #include "includes.h"
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| 24 |
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| 25 | /**
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| 26 | * Escape a parameter to an LDAP filter string, so they cannot contain
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| 27 | * embeded ( ) * or \ chars which may cause it not to parse correctly.
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| 28 | *
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| 29 | * @param s The input string
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| 30 | *
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| 31 | * @return A string allocated with malloc(), containing the escaped string,
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| 32 | * and to be free()ed by the caller.
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| 33 | **/
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| 34 |
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| 35 | char *escape_ldap_string_alloc(const char *s)
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| 36 | {
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| 37 | size_t len = strlen(s)+1;
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| 38 | char *output = (char *)SMB_MALLOC(len);
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| 39 | const char *sub;
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| 40 | int i = 0;
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| 41 | char *p = output;
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| 42 |
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| 43 | if (output == NULL) {
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| 44 | return NULL;
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| 45 | }
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| 46 |
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| 47 | while (*s)
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| 48 | {
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| 49 | switch (*s)
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| 50 | {
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| 51 | case '*':
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| 52 | sub = "\\2a";
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| 53 | break;
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| 54 | case '(':
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| 55 | sub = "\\28";
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| 56 | break;
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| 57 | case ')':
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| 58 | sub = "\\29";
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| 59 | break;
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| 60 | case '\\':
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| 61 | sub = "\\5c";
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| 62 | break;
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| 63 | default:
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| 64 | sub = NULL;
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| 65 | break;
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| 66 | }
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| 67 |
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| 68 | if (sub) {
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| 69 | len = len + 3;
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| 70 | output = (char *)SMB_REALLOC(output, len);
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| 71 | if (!output) {
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| 72 | return NULL;
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| 73 | }
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| 74 |
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| 75 | p = &output[i];
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| 76 | strncpy (p, sub, 3);
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| 77 | p += 3;
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| 78 | i += 3;
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| 79 |
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| 80 | } else {
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| 81 | *p = *s;
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| 82 | p++;
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| 83 | i++;
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| 84 | }
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| 85 | s++;
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| 86 | }
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| 87 |
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| 88 | *p = '\0';
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| 89 | return output;
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