From: Jeroen van Wolffelaar <jeroen@php.net>
Date: Mon, 3 Sep 2001 01:25:24 +0000 (+0000)
Subject: Fix SIGSEGV because HAS_SRAND didn't check wether the entry existed at
X-Git-Tag: PRE_SUBST_Z_MACROS~262
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=72c7ae080b05720633070c6a980ee392f431a3c1;p=php

Fix SIGSEGV because HAS_SRAND didn't check wether the entry existed at
all
---

diff --git a/ext/standard/rand.c b/ext/standard/rand.c
index cddeca803d..108f58a9ad 100644
--- a/ext/standard/rand.c
+++ b/ext/standard/rand.c
@@ -36,7 +36,7 @@
 /* an ARRAY of POINTERS, not vice versa */
 php_randgen_entry *php_randgen_entries[PHP_RAND_NUMRANDS];
 
-#define PHP_HAS_SRAND(which)	(php_randgen_entries[which]->srand)
+#define PHP_HAS_SRAND(which)	(php_randgen_entries[which] && php_randgen_entries[which]->srand)
 #define PHP_SRAND(which,seed)	((*(php_randgen_entries[which]->srand))(seed))
 #define PHP_RAND(which)			((*(php_randgen_entries[which]->rand))())
 #define PHP_RANDMAX(which)		(php_randgen_entries[which]->randmax)
@@ -48,6 +48,8 @@ PHP_MINIT_FUNCTION(rand)
 {
 	PHP_MINIT(rand_sys)(INIT_FUNC_ARGS_PASSTHRU);
 	PHP_MINIT(rand_mt)(INIT_FUNC_ARGS_PASSTHRU);
+	/* lcg not yet implemented */
+	php_randgen_entries[PHP_RAND_LCG] = NULL;
 }
 
 /* TODO: check that this function is called on the start of each script