diff options
Diffstat (limited to 'libc/sysdeps/linux/common/sys')
| -rw-r--r-- | libc/sysdeps/linux/common/sys/random.h | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/libc/sysdeps/linux/common/sys/random.h b/libc/sysdeps/linux/common/sys/random.h index 3d12744ad..c3d9cf575 100644 --- a/libc/sysdeps/linux/common/sys/random.h +++ b/libc/sysdeps/linux/common/sys/random.h @@ -4,12 +4,20 @@ #ifndef _SYS_RANDOM_H #define _SYS_RANDOM_H 1 + #include <features.h> #include <stddef.h> __BEGIN_DECLS -#if defined __UCLIBC_LINUX_SPECIFIC__ && defined __USE_GNU +#include <bits/types.h> + +#ifndef __ssize_t_defined +typedef __ssize_t ssize_t; +# define __ssize_t_defined +#endif + +#if defined __UCLIBC_LINUX_SPECIFIC__ # if 0 /*def __ASSUME_GETRANDOM_SYSCALL */ # include <linux/random.h> # else @@ -20,13 +28,21 @@ __BEGIN_DECLS * * GRND_NONBLOCK Don't block and return EAGAIN instead * GRND_RANDOM Use the /dev/random pool instead of /dev/urandom + * GRND_INSECURE Write random data that may not be cryptographically secure. */ # define GRND_NONBLOCK 0x0001 # define GRND_RANDOM 0x0002 +# define GRND_INSECURE 0x0004 # endif -/* FIXME: aren't there a couple of __restrict and const missing ? */ -extern int getrandom(void *__buf, size_t count, unsigned int flags) +extern ssize_t getrandom(void *__buf, size_t count, unsigned int flags) __nonnull ((1)) __wur; + +/* OpenBSD-compatible access to random bytes. + May be a cancellation point here, unlike in glibc/musl. */ +# ifndef __getentropy_defined +extern int getentropy(void *__buf, size_t __len) __nonnull ((1)) __wur; +# define __getentropy_defined +# endif #endif __END_DECLS |