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authorfoobar <sniper@php.net>2002-06-28 09:23:50 +0000
committerfoobar <sniper@php.net>2002-06-28 09:23:50 +0000
commitab0d5fecd33d67c93da764efabbfa126b2ae7381 (patch)
treee81a43a40c5b0d71ca7a8431cfd3b9ab7d4da1a5
parentf4699170fcffc2760391eaffd06abd2e5df75513 (diff)
downloadphp-git-ab0d5fecd33d67c93da764efabbfa126b2ae7381.tar.gz
Fix bug: #17528, do not crash with empty string.
-rw-r--r--ext/gd/gd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/gd/gd.c b/ext/gd/gd.c
index 4ce04e79aa..67dd792275 100644
--- a/ext/gd/gd.c
+++ b/ext/gd/gd.c
@@ -963,7 +963,7 @@ static int _php_image_type (char data[8])
#ifdef HAVE_LIBGD15
/* Based on ext/standard/images.c */
- if (data == NULL)
+ if (data == NULL || strlen(data) <= 0)
return -1;
if (!memcmp(data, php_sig_gd2, 3))