From: Jim Meyering <jim@meyering.net>
Date: Sun, 30 Nov 1997 10:24:41 +0000 (+0000)
Subject: (savedir): Check for size zero before invoking
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6f82b55a4adcf7de3daff54cd1cffa0a4579277e;p=pspp

(savedir): Check for size zero before invoking
malloc; this can occur if st_size arg overflows on conversion to
unsigned int.  All callers now cast st_size arg to unsigned int.
---

diff --git a/lib/savedir.c b/lib/savedir.c
index 76634eef4e..4c07bffc29 100644
--- a/lib/savedir.c
+++ b/lib/savedir.c
@@ -87,7 +87,7 @@ savedir (dir, name_size)
   if (dirp == NULL)
     return NULL;
 
-  name_space = (char *) malloc (name_size);
+  name_space = (char *) malloc (name_size ? name_size : 1);
   if (name_space == NULL)
     {
       closedir (dirp);