| 1 | /* |
| 2 | ** Copyright 2009 Double Precision, Inc. See COPYING for |
| 3 | ** distribution information. |
| 4 | */ |
| 5 | |
| 6 | #if HAVE_CONFIG_H |
| 7 | #include "courier_auth_config.h" |
| 8 | #endif |
| 9 | #include <stdio.h> |
| 10 | #include <stdlib.h> |
| 11 | #include <string.h> |
| 12 | #include <errno.h> |
| 13 | #if HAVE_UNISTD_H |
| 14 | #include <unistd.h> |
| 15 | #endif |
| 16 | |
| 17 | #include "courierauth.h" |
| 18 | |
| 19 | |
| 20 | static void escape_specials(const char *str, |
| 21 | char *bufptr, |
| 22 | size_t *sizeptr) |
| 23 | { |
| 24 | static const char specials[]="*()\\"; |
| 25 | |
| 26 | while (*str) |
| 27 | { |
| 28 | char buf[10]; |
| 29 | char *p; |
| 30 | |
| 31 | if (strchr(specials, *str)) |
| 32 | { |
| 33 | sprintf(buf, "\\%02x", (int)(unsigned char)*str); |
| 34 | } |
| 35 | else |
| 36 | { |
| 37 | buf[0]=*str; |
| 38 | buf[1]=0; |
| 39 | } |
| 40 | |
| 41 | for (p=buf; *p; p++) |
| 42 | { |
| 43 | if (bufptr) |
| 44 | *bufptr++=*p; |
| 45 | if (sizeptr) |
| 46 | ++*sizeptr; |
| 47 | } |
| 48 | ++str; |
| 49 | } |
| 50 | |
| 51 | if (bufptr) |
| 52 | *bufptr=0; |
| 53 | } |
| 54 | |
| 55 | char *courier_auth_ldap_escape(const char *str) |
| 56 | { |
| 57 | char *escaped; |
| 58 | size_t escaped_cnt=1; |
| 59 | |
| 60 | escape_specials(str, NULL, &escaped_cnt); |
| 61 | escaped=malloc(escaped_cnt); |
| 62 | if (!escaped) |
| 63 | return NULL; |
| 64 | |
| 65 | escape_specials(str, escaped, NULL); |
| 66 | |
| 67 | return escaped; |
| 68 | } |