| 1 | /* |
| 2 | ** Copyright 2002 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 | #include <pwd.h> |
| 14 | #if HAVE_UNISTD_H |
| 15 | #include <unistd.h> |
| 16 | #endif |
| 17 | |
| 18 | #include "auth.h" |
| 19 | |
| 20 | static const char rcsid[]="$Id: authoption.c,v 1.3 2004/11/10 00:42:04 mrsam Exp $"; |
| 21 | |
| 22 | |
| 23 | int auth_getoptionenvint(const char *keyword) |
| 24 | { |
| 25 | char *p = auth_getoptionenv(keyword); |
| 26 | int i; |
| 27 | |
| 28 | if (!p) return 0; |
| 29 | |
| 30 | i = atoi(p); |
| 31 | free(p); |
| 32 | return i; |
| 33 | } |
| 34 | |
| 35 | char *auth_getoptionenv(const char *keyword) |
| 36 | { |
| 37 | return auth_getoption(getenv("OPTIONS"), keyword); |
| 38 | } |
| 39 | |
| 40 | char *auth_getoption(const char *options, const char *keyword) |
| 41 | { |
| 42 | size_t keyword_l=strlen(keyword); |
| 43 | char *p; |
| 44 | |
| 45 | while (options) |
| 46 | { |
| 47 | if (strncmp(options, keyword, keyword_l) == 0) |
| 48 | { |
| 49 | if (options[keyword_l] == 0 || |
| 50 | options[keyword_l] == ',') |
| 51 | return strdup(""); |
| 52 | |
| 53 | if (options[keyword_l] == '=') |
| 54 | { |
| 55 | options += keyword_l; |
| 56 | ++options; |
| 57 | |
| 58 | for (keyword_l=0; |
| 59 | options[keyword_l] && |
| 60 | options[keyword_l] != ','; |
| 61 | ++keyword_l) |
| 62 | ; |
| 63 | |
| 64 | if (!(p=malloc(keyword_l+1))) |
| 65 | return NULL; |
| 66 | memcpy(p, options, keyword_l); |
| 67 | p[keyword_l]=0; |
| 68 | return p; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | options=strchr(options, ','); |
| 73 | if (options) |
| 74 | ++options; |
| 75 | } |
| 76 | errno=ENOENT; |
| 77 | return NULL; |
| 78 | } |