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| author | Ben Noordhuis <info@bnoordhuis.nl> | 2019-06-22 15:18:17 +0200 |
|---|---|---|
| committer | Saúl Ibarra Corretgé <s@saghul.net> | 2019-09-18 08:09:14 +0200 |
| commit | 4ed2a78f0eb1c9d2a0c98ea4a88c6824e5958dc6 (patch) | |
| tree | ce6b8b3282f3ac65d6bbeba5cec36463b68f06e5 /src/unix/linux-syscalls.c | |
| parent | fd1502f5630591bf8ce79502df9b5d76868dfd3b (diff) | |
| download | libuv-4ed2a78f0eb1c9d2a0c98ea4a88c6824e5958dc6.tar.gz libuv-4ed2a78f0eb1c9d2a0c98ea4a88c6824e5958dc6.zip | |
unix,win: add uv_random()
Add an API for obtaining cryptographically strong random data from the
system PRNG.
Co-authored-by: Saúl Ibarra Corretgé <s@saghul.net>
Refs: https://github.com/libuv/libuv/pull/1055
PR-URL: https://github.com/libuv/libuv/pull/2347
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Diffstat (limited to 'src/unix/linux-syscalls.c')
| -rw-r--r-- | src/unix/linux-syscalls.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/unix/linux-syscalls.c b/src/unix/linux-syscalls.c index 5637cf98..95038786 100644 --- a/src/unix/linux-syscalls.c +++ b/src/unix/linux-syscalls.c @@ -203,6 +203,22 @@ # endif #endif /* __NR_statx */ +#ifndef __NR_getrandom +# if defined(__x86_64__) +# define __NR_getrandom 318 +# elif defined(__i386__) +# define __NR_getrandom 355 +# elif defined(__aarch64__) +# define __NR_getrandom 384 +# elif defined(__arm__) +# define __NR_getrandom (UV_SYSCALL_BASE + 384) +# elif defined(__ppc__) +# define __NR_getrandom 359 +# elif defined(__s390__) +# define __NR_getrandom 349 +# endif +#endif /* __NR_getrandom */ + int uv__accept4(int fd, struct sockaddr* addr, socklen_t* addrlen, int flags) { #if defined(__i386__) unsigned long args[4]; @@ -367,3 +383,12 @@ int uv__statx(int dirfd, return errno = ENOSYS, -1; #endif } + + +ssize_t uv__getrandom(void* buf, size_t buflen, unsigned flags) { +#if defined(__NR_getrandom) + return syscall(__NR_getrandom, buf, buflen, flags); +#else + return errno = ENOSYS, -1; +#endif +} |