From: Cristy <urban-warrior@imagemagick.org>
Date: Sat, 3 Feb 2018 21:07:28 +0000 (-0500)
Subject: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5356
X-Git-Tag: 7.0.7-23~157
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=716ddbbe03377681a304661bdf0e7e3271ccfc92;p=imagemagick

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5356
---

diff --git a/MagickCore/option.c b/MagickCore/option.c
index d0a780cee..6b6cd36ce 100644
--- a/MagickCore/option.c
+++ b/MagickCore/option.c
@@ -3009,7 +3009,7 @@ MagickExport ssize_t ParseCommandOption(const CommandOption option,
       if (LocaleCompare(token,option_info[i].mnemonic) == 0)
         break;
     command_info=option_info+i;
-    if ((command_info->mnemonic == (const char *) NULL) &&
+    if ((command_info->mnemonic == (const char *) NULL) && (*token != '\0') &&
         ((strchr(token+1,'-') != (char *) NULL) ||
          (strchr(token+1,'_') != (char *) NULL)))
         {