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mt_rand/rand should raise error exceeds getrandmax() value
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diff --git a/ext/standard/rand.c b/ext/standard/rand.c | |
index 50729f2..38c405d 100644 | |
--- a/ext/standard/rand.c | |
+++ b/ext/standard/rand.c | |
@@ -293,8 +293,16 @@ PHP_FUNCTION(rand) | |
zend_long number; | |
int argc = ZEND_NUM_ARGS(); | |
- if (argc != 0 && zend_parse_parameters(argc, "ll", &min, &max) == FAILURE) | |
- return; | |
+ if (argc != 0) { | |
+ if (zend_parse_parameters(argc, "ll", &min, &max) == FAILURE) { | |
+ return; | |
+ } else if (max < min) { | |
+ php_error_docref(NULL, E_WARNING, "max(" ZEND_LONG_FMT ") is smaller than min(" ZEND_LONG_FMT ")", max, min); | |
+ RETURN_FALSE; | |
+ } else if (max - min > PHP_RAND_MAX) { | |
+ php_error_docref(NULL, E_WARNING, "max(" ZEND_LONG_FMT ") - min(" ZEND_LONG_FMT ") range exceeds getrandmax() value", max, min); | |
+ } | |
+ } | |
number = php_rand(); | |
if (argc == 2) { | |
@@ -320,6 +328,8 @@ PHP_FUNCTION(mt_rand) | |
} else if (max < min) { | |
php_error_docref(NULL, E_WARNING, "max(" ZEND_LONG_FMT ") is smaller than min(" ZEND_LONG_FMT ")", max, min); | |
RETURN_FALSE; | |
+ } else if (max - min > PHP_MT_RAND_MAX) { | |
+ php_error_docref(NULL, E_WARNING, "max(" ZEND_LONG_FMT ") - min(" ZEND_LONG_FMT ") range exceeds mt_getrandmax() value", max, min); | |
} | |
} | |
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