1 /* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved.
2 *
3 * Permission to use, copy, modify, and distribute this software
4 * is freely granted, provided that this notice is preserved.
5 */
6
7 #include <errno.h>
8 #include <sys/types.h>
9 #include <string.h>
10 #include <stdlib.h>
11 #include <argz.h>
12 #include <envz.h>
13
14 error_t
envz_add(char ** envz,size_t * envz_len,const char * name,const char * value)15 envz_add (char **envz,
16 size_t *envz_len,
17 const char *name,
18 const char *value)
19 {
20 char *concat = NULL;
21 int name_len = 0;
22 int val_len = 0;
23 int retval = 0;
24
25 envz_remove(envz, envz_len, name);
26
27 if (value)
28 {
29 name_len = strlen(name);
30 val_len = strlen(value);
31 if(!(concat = (char *) malloc(name_len + val_len + 2)))
32 return ENOMEM;
33
34 memcpy(concat, name, name_len);
35 concat[name_len] = '=';
36 memcpy(concat + name_len + 1, value, val_len + 1);
37
38 retval = argz_add(envz, envz_len, concat);
39 free(concat);
40 }
41 else
42 {
43 retval = argz_add(envz, envz_len, name);
44 }
45 return retval;
46 }
47
