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authorodaira <odaira@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-03-04 23:44:59 (GMT)
committerodaira <odaira@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-03-04 23:44:59 (GMT)
commit270630c6286f1b2250afd2a5cfb2211a55411741 (patch)
tree2218fd6eba5eda5e2db5c22ebe310eb721d9a4f6 /random.c
parent1d00e40e0cf48ad25c35fa77c54e7dd1571bca23 (diff)
* random.c (random_raw_seed): Avoid calling fill_random_bytes()
if the requested size is 0. AIX returns -1 for 0-byte read from /dev/urandom, while other UNIX returns 0. With this change, Random.raw_seed(0) consistently retuns "" in any UNIX. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49844 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'random.c')
-rw-r--r--random.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/random.c b/random.c
index 82111ce..fed85e0 100644
--- a/random.c
+++ b/random.c
@@ -580,6 +580,7 @@ random_raw_seed(VALUE self, VALUE size)
{
long n = NUM2ULONG(size);
VALUE buf = rb_str_new(0, n);
+ if (n == 0) return buf;
if (fill_random_bytes(RSTRING_PTR(buf), n)) return Qnil;
return buf;
}