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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67044 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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svn 2019-02-10 08:21:39 +00:00
parent 1a8583de72
commit 61ffc7a0ae
1 changed files with 15 additions and 15 deletions
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30
random.c
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@ -398,21 +398,21 @@ fill_random_bytes_syscall(void *seed, size_t size, int need_secure)
{ {
static rb_atomic_t try_syscall = 1; static rb_atomic_t try_syscall = 1;
if (try_syscall) { if (try_syscall) {
ssize_t ret; ssize_t ret;
size_t offset = 0; size_t offset = 0;
int flags = 0; int flags = 0;
if (!need_secure) if (!need_secure)
flags = GRND_NONBLOCK; flags = GRND_NONBLOCK;
do { do {
errno = 0; errno = 0;
ret = getrandom(((char*)seed) + offset, size - offset, flags); ret = getrandom(((char*)seed) + offset, size - offset, flags);
if (ret == -1) { if (ret == -1) {
ATOMIC_SET(try_syscall, 0); ATOMIC_SET(try_syscall, 0);
return -1; return -1;
} }
offset += (size_t)ret; offset += (size_t)ret;
} while(offset < size); } while(offset < size);
return 0; return 0;
} }
return -1; return -1;
} }