Ensure that the read from /dev/urandom returns a positive result

(closes issue #10308, reported by yehavi, patched by me) git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@77268 65c4cc65-6c06-0410-ace0-fbb531ad65f3
19 years ago · 3ed2deb7df
parent 7a97d49914
commit 3ed2deb7df
1 changed files with 1 additions and 1 deletions
--- a/main/utils.c
+++ b/main/utils.c
@ -830,7 +830,7 @@ long int ast_random(void)
 	if (dev_urandom_fd >= 0) {
 		int read_res = read(dev_urandom_fd, &res, sizeof(res));
 		if (read_res > 0)
-			return res;
+			return labs(res);
 	}
 #endif
 #ifdef linux