diff options
| -rw-r--r-- | miscutils/seedrng.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/miscutils/seedrng.c b/miscutils/seedrng.c index 967741d..7cc8551 100644 --- a/miscutils/seedrng.c +++ b/miscutils/seedrng.c @@ -45,6 +45,20 @@ #include <sys/random.h> #include <sys/file.h> +/* Fix up glibc <= 2.24 not having getrandom() */ +#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ <= 24 +#include <sys/syscall.h> +# define getrandom(...) bb_getrandom(__VA_ARGS__) +static ssize_t getrandom(void *buffer, size_t length, unsigned flags) +{ +# if defined(__NR_getrandom) + return syscall(__NR_getrandom, buffer, length, flags); +# else + return ENOSYS; +# endif +} +#endif + #ifndef GRND_INSECURE #define GRND_INSECURE 0x0004 /* Apparently some headers don't ship with this yet. */ #endif |