Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/lib/env-util.c @ 1222:ea3f6c93d1a2 HEAD

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Added env_remove() and restrict_access_clear_env().
author Timo Sirainen <tss@iki.fi>
date Fri, 21 Feb 2003 15:01:55 +0200
parents fd8888f6f037
children 0ca6dfe196f1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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7814b29d0862 Created env_put() and env_clean() for a bit easier handling of environment
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1 /*
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2 env-util.c : Environment variable handling
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3
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4 Copyright (c) 2002 Timo Sirainen
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5
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6 Permission is hereby granted, free of charge, to any person obtaining
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7 a copy of this software and associated documentation files (the
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8 "Software"), to deal in the Software without restriction, including
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9 without limitation the rights to use, copy, modify, merge, publish,
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10 distribute, sublicense, and/or sell copies of the Software, and to
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11 permit persons to whom the Software is furnished to do so, subject to
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12 the following conditions:
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13
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14 The above copyright notice and this permission notice shall be
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15 included in all copies or substantial portions of the Software.
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16
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17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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18 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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19 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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20 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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21 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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22 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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23 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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24 */
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25
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26 #include "lib.h"
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27 #include "env-util.h"
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28
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29 #include <stdlib.h>
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30
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31 static pool_t pool = NULL;
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32
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33 void env_put(const char *env)
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34 {
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35 if (pool == NULL)
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36 pool = pool_alloconly_create("Environment", 1024);
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37
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38 if (putenv(p_strdup(pool, env)) != 0)
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39 i_fatal("Environment full, can't add: %s", env);
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40 }
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41
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42 void env_remove(const char *env)
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43 {
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44 extern char **environ;
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45 size_t len;
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46
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47 if (environ == NULL)
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48 return;
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49
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50 len = strlen(env);
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51 for (; *environ != NULL; environ++) {
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52 if (strncmp(*environ, env, len) == 0 &&
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53 (*environ)[len] == '=') {
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54 char **p;
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55
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56 for (p = environ; *p != NULL; p++)
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57 p[0] = p[1];
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58 }
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59 }
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60 }
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61
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62 void env_clean(void)
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63 {
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64 extern char **environ;
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65
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66 if (environ != NULL)
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67 *environ = NULL;
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68
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69 if (pool != NULL) {
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70 pool_unref(pool);
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71 pool = NULL;
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72 }
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73 }