1 | /* This file may have been modified by DJ Delorie (Jan 1991). If so, |
---|
2 | ** these modifications are Copyright (C) 1991 DJ Delorie. |
---|
3 | */ |
---|
4 | |
---|
5 | /*- |
---|
6 | * Copyright (c) 1988 The Regents of the University of California. |
---|
7 | * All rights reserved. |
---|
8 | * |
---|
9 | * Redistribution and use in source and binary forms are permitted |
---|
10 | * provided that: (1) source distributions retain this entire copyright |
---|
11 | * notice and comment, and (2) distributions including binaries display |
---|
12 | * the following acknowledgement: ``This product includes software |
---|
13 | * developed by the University of California, Berkeley and its contributors'' |
---|
14 | * in the documentation or other materials provided with the distribution |
---|
15 | * and in all advertising materials mentioning features or use of this |
---|
16 | * software. Neither the name of the University nor the names of its |
---|
17 | * contributors may be used to endorse or promote products derived |
---|
18 | * from this software without specific prior written permission. |
---|
19 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
---|
20 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
---|
21 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
---|
22 | */ |
---|
23 | |
---|
24 | #include <reent.h> |
---|
25 | #include <stdlib.h> |
---|
26 | #include <string.h> |
---|
27 | |
---|
28 | #include "envlock.h" |
---|
29 | |
---|
30 | /* _putenv_r - reentrant version of putenv that either adds |
---|
31 | or replaces the environment variable "name" |
---|
32 | with "value" which is specified by str as "name=value". */ |
---|
33 | int |
---|
34 | _putenv_r (struct _reent *reent_ptr, |
---|
35 | char *str) |
---|
36 | { |
---|
37 | register char *p, *equal; |
---|
38 | int rval; |
---|
39 | |
---|
40 | p = _strdup_r (reent_ptr, str); |
---|
41 | |
---|
42 | if (!p) |
---|
43 | return 1; |
---|
44 | |
---|
45 | if (!(equal = strchr (p, '='))) |
---|
46 | { |
---|
47 | (void) _free_r (reent_ptr, p); |
---|
48 | return 1; |
---|
49 | } |
---|
50 | |
---|
51 | *equal = '\0'; |
---|
52 | rval = _setenv_r (reent_ptr, p, equal + 1, 1); |
---|
53 | (void) _free_r (reent_ptr, p); |
---|
54 | |
---|
55 | return rval; |
---|
56 | } |
---|