diff options
Diffstat (limited to 'lib/libc/stdlib/rand.c')
| -rw-r--r-- | lib/libc/stdlib/rand.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/libc/stdlib/rand.c b/lib/libc/stdlib/rand.c index 0f9c100807f..6860dd4f712 100644 --- a/lib/libc/stdlib/rand.c +++ b/lib/libc/stdlib/rand.c @@ -39,14 +39,29 @@ rand_r(u_int *seed) return (*seed % ((u_int)RAND_MAX + 1)); } +#if defined(APIWARN) +__warn_references(rand_r, + "warning: rand_r() isn't random; consider using arc4random()"); +#endif + int rand(void) { return (rand_r(&next)); } +#if defined(APIWARN) +__warn_references(rand, + "warning: rand() isn't random; consider using arc4random()"); +#endif + void srand(u_int seed) { next = seed; } + +#if defined(APIWARN) +__warn_references(srand, + "warning: srand() seed choices are invariably poor"); +#endif |