| 1 | #define _GNU_SOURCE |
| 2 | #include <stdlib.h> |
| 3 | #include <unistd.h> |
| 4 | |
| 5 | static void dummy(char *old, char *new) {} |
| 6 | weak_alias(dummy, __env_rm_add); |
| 7 | |
| 8 | int clearenv() |
| 9 | { |
| 10 | #ifdef __wasilibc_unmodified_upstream // Lazy environment variable init. |
| 11 | #else |
| 12 | // This specialized header is included within the function body to arranges for |
| 13 | // the environment variables to be lazily initialized. It redefined `__environ`, |
| 14 | // so don't remove or reorder it with respect to other code. |
| 15 | #include "wasi/libc-environ-compat.h" |
| 16 | #endif |
| 17 | char **e = __environ; |
| 18 | __environ = 0; |
| 19 | if (e) while (*e) __env_rm_add(*e++, 0); |
| 20 | return 0; |
| 21 | } |