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Rev | Author | Line No. | Line |
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4349 | Serge | 1 | /* |
2 | FUNCTION |
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3 | < |
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4 | |||
5 | INDEX |
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6 | getenv |
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7 | INDEX |
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8 | environ |
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9 | |||
10 | ANSI_SYNOPSIS |
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11 | #include |
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12 | char *getenv(const char *<[name]>); |
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13 | |||
14 | TRAD_SYNOPSIS |
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15 | #include |
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16 | char *getenv(<[name]>) |
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17 | char *<[name]>; |
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18 | |||
19 | DESCRIPTION |
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20 | < |
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21 | (using the global pointer ``< |
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22 | name matches the string at <[name]>. If a variable name matches, |
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23 | < |
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24 | |||
25 | RETURNS |
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26 | A pointer to the (string) value of the environment variable, or |
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27 | < |
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28 | |||
29 | PORTABILITY |
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30 | < |
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31 | variables vary from one system to another. |
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32 | |||
33 | < |
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34 | */ |
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35 | |||
36 | /* |
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37 | * Copyright (c) 1987, 2000 Regents of the University of California. |
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38 | * All rights reserved. |
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39 | * |
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40 | * Redistribution and use in source and binary forms are permitted |
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41 | * provided that: (1) source distributions retain this entire copyright |
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42 | * notice and comment, and (2) distributions including binaries display |
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43 | * the following acknowledgement: ``This product includes software |
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44 | * developed by the University of California, Berkeley and its contributors'' |
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45 | * in the documentation or other materials provided with the distribution |
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46 | * and in all advertising materials mentioning features or use of this |
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47 | * software. Neither the name of the University nor the names of its |
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48 | * contributors may be used to endorse or promote products derived |
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49 | * from this software without specific prior written permission. |
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50 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
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51 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
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52 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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53 | */ |
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54 | |||
55 | #ifndef _REENT_ONLY |
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56 | |||
57 | #include |
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58 | #include |
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59 | #include |
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60 | |||
61 | /* |
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62 | * _findenv -- |
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63 | * Returns pointer to value associated with name, if any, else NULL. |
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64 | * Sets offset to be the offset of the name/value combination in the |
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65 | * environmental array, for use by setenv(3) and unsetenv(3). |
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66 | * Explicitly removes '=' in argument name. |
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67 | * |
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68 | * This routine *should* be a static; don't use it. |
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69 | */ |
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70 | |||
71 | char * |
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72 | _DEFUN (_findenv, (name, offset), |
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73 | register _CONST char *name _AND |
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74 | int *offset) |
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75 | { |
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9959 | turbocat | 76 | return _findenv_r (_REENT, name, offset); |
4349 | Serge | 77 | } |
78 | |||
79 | /* |
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80 | * getenv -- |
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81 | * Returns ptr to value associated with name, if any, else NULL. |
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82 | */ |
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83 | |||
84 | char * |
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85 | _DEFUN (getenv, (name), |
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86 | _CONST char *name) |
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87 | { |
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88 | int offset; |
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9959 | turbocat | 89 | return _findenv_r (_REENT, name, &offset); |
4349 | Serge | 90 | } |
91 | |||
92 | #endif /* !_REENT_ONLY */ |