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Annotation of embedaddon/sudo/plugins/sudoers/locale.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (c) 2012-2013 Todd C. Miller <Todd.Miller@courtesan.com>
        !             3:  *
        !             4:  * Permission to use, copy, modify, and distribute this software for any
        !             5:  * purpose with or without fee is hereby granted, provided that the above
        !             6:  * copyright notice and this permission notice appear in all copies.
        !             7:  *
        !             8:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !             9:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            10:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            11:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            12:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            13:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            14:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            15:  */
        !            16: 
        !            17: #include <config.h>
        !            18: 
        !            19: #include <sys/types.h>
        !            20: #include <stdio.h>
        !            21: #ifdef STDC_HEADERS
        !            22: # include <stdlib.h>
        !            23: # include <stddef.h>
        !            24: #else
        !            25: # ifdef HAVE_STDLIB_H
        !            26: #  include <stdlib.h>
        !            27: # endif
        !            28: #endif /* STDC_HEADERS */
        !            29: #ifdef HAVE_STRING_H
        !            30: # include <string.h>
        !            31: #endif /* HAVE_STRING_H */
        !            32: #ifdef HAVE_STRINGS_H
        !            33: # include <strings.h>
        !            34: #endif /* HAVE_STRINGS_H */
        !            35: #ifdef HAVE_STDBOOL_H
        !            36: # include <stdbool.h>
        !            37: #else
        !            38: # include "compat/stdbool.h"
        !            39: #endif /* HAVE_STDBOOL_H */
        !            40: 
        !            41: #include "missing.h"
        !            42: #include "error.h"
        !            43: #include "alloc.h"
        !            44: #include "logging.h"
        !            45: #include "gettext.h"
        !            46: 
        !            47: static int current_locale = SUDOERS_LOCALE_USER;
        !            48: static char *user_locale;
        !            49: static char *sudoers_locale;
        !            50: 
        !            51: int
        !            52: sudoers_getlocale(void)
        !            53: {
        !            54:     return current_locale;
        !            55: }
        !            56: 
        !            57: void
        !            58: sudoers_initlocale(const char *ulocale, const char *slocale)
        !            59: {
        !            60:     if (ulocale != NULL) {
        !            61:        efree(user_locale);
        !            62:        user_locale = estrdup(ulocale);
        !            63:     }
        !            64:     if (slocale != NULL) {
        !            65:        efree(sudoers_locale);
        !            66:        sudoers_locale = estrdup(slocale);
        !            67:     }
        !            68: }
        !            69: 
        !            70: /*
        !            71:  * Set locale to user or sudoers value.
        !            72:  * Returns true on success and false on failure,
        !            73:  * If prevlocale is non-NULL it will be filled in with the
        !            74:  * old SUDOERS_LOCALE_* value.
        !            75:  */
        !            76: bool
        !            77: sudoers_setlocale(int newlocale, int *prevlocale)
        !            78: {
        !            79:     char *res = NULL;
        !            80: 
        !            81:     switch (newlocale) {
        !            82:        case SUDOERS_LOCALE_USER:
        !            83:            if (prevlocale)
        !            84:                *prevlocale = current_locale;
        !            85:            if (current_locale != SUDOERS_LOCALE_USER) {
        !            86:                current_locale = SUDOERS_LOCALE_USER;
        !            87:                res = setlocale(LC_ALL, user_locale ? user_locale : "");
        !            88:                if (res != NULL && user_locale == NULL)
        !            89:                    user_locale = estrdup(setlocale(LC_ALL, NULL));
        !            90:            }
        !            91:            break;
        !            92:        case SUDOERS_LOCALE_SUDOERS:
        !            93:            if (prevlocale)
        !            94:                *prevlocale = current_locale;
        !            95:            if (current_locale != SUDOERS_LOCALE_SUDOERS) {
        !            96:                current_locale = SUDOERS_LOCALE_SUDOERS;
        !            97:                res = setlocale(LC_ALL, sudoers_locale ? sudoers_locale : "C");
        !            98:                if (res == NULL && sudoers_locale != NULL) {
        !            99:                    if (strcmp(sudoers_locale, "C") != 0) {
        !           100:                        efree(sudoers_locale);
        !           101:                        sudoers_locale = estrdup("C");
        !           102:                        res = setlocale(LC_ALL, "C");
        !           103:                    }
        !           104:                }
        !           105:            }
        !           106:            break;
        !           107:     }
        !           108:     return res ? true : false;
        !           109: }
        !           110: 
        !           111: static int warning_locale;
        !           112: 
        !           113: void
        !           114: warning_set_locale(void)
        !           115: {
        !           116:     sudoers_setlocale(SUDOERS_LOCALE_USER, &warning_locale);
        !           117: }
        !           118: 
        !           119: void
        !           120: warning_restore_locale(void)
        !           121: {
        !           122:     sudoers_setlocale(warning_locale, NULL);
        !           123: }