6 static void dummy(char *old, char *new) {}
7 weak_alias(dummy, __env_rm_add);
9 int __putenv(char *s, size_t l, char *r)
13 for (char **e = __environ; *e; e++, i++)
14 if (!strncmp(s, *e, l+1)) {
23 if (__environ == oldenv) {
24 newenv = realloc(oldenv, sizeof *newenv * (i+2));
25 if (!newenv) goto oom;
27 newenv = malloc(sizeof *newenv * (i+2));
28 if (!newenv) goto oom;
29 if (i) memcpy(newenv, __environ, sizeof *newenv * i);
34 __environ = oldenv = newenv;
35 if (r) __env_rm_add(0, r);
44 size_t l = __strchrnul(s, '=') - s;
45 if (!l || !s[l]) return unsetenv(s);
46 return __putenv(s, l, 0);