| 1 | #include <errno.h> |
| 2 | #include <unistd.h> |
| 3 | #ifdef __wasilibc_use_wasip2 |
| 4 | #include <wasi/libc.h> |
| 5 | #else |
| 6 | #include <wasi/api.h> |
| 7 | #endif |
| 8 | |
| 9 | int __getentropy(void *buffer, size_t len) { |
| 10 | if (len > 256) { |
| 11 | errno = EIO; |
| 12 | return -1; |
| 13 | } |
| 14 | |
| 15 | #ifdef __wasilibc_use_wasip2 |
| 16 | int r = __wasilibc_random(buffer, len); |
| 17 | #else |
| 18 | int r = __wasi_random_get(buffer, len); |
| 19 | #endif |
| 20 | if (r != 0) { |
| 21 | errno = r; |
| 22 | return -1; |
| 23 | } |
| 24 | return 0; |
| 25 | } |
| 26 | weak_alias(__getentropy, getentropy); |