From: Matt Kraai <kraai@alumni.carnegiemellon.edu>
Date: Mon, 20 Aug 2001 13:39:36 +0000 (+0000)
Subject: gcc.c (make_relative_prefix): Allocate a sufficiently large buffer.
X-Git-Tag: prereleases/libstdc++-3.0.95~2541
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=27a144872845b00b6a526ccf6c03792a027a4494;p=thirdparty%2Fgcc.git

gcc.c (make_relative_prefix): Allocate a sufficiently large buffer.

	* gcc.c (make_relative_prefix): Allocate a sufficiently large
	buffer.

From-SVN: r45049
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5a283f9f37a3..ac9cee0c2585 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2001-08-20  Matt Kraai  <kraai@alumni.carnegiemellon.edu>
+
+	* gcc.c (make_relative_prefix): Allocate a sufficiently large
+	buffer.
+
 2001-08-20  Richard Henderson  <rth@redhat.com>
 
 	* final.c (end_final): Fix typo last change.
diff --git a/gcc/gcc.c b/gcc/gcc.c
index 47cfa2e95ff3..99a5c3cd5949 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -2285,8 +2285,12 @@ make_relative_prefix (progname, bin_prefix, prefix)
       GET_ENV_PATH_LIST (temp, "PATH");
       if (temp)
 	{
-	  char *startp, *endp;
-	  char *nstore = (char *) alloca (strlen (temp) + strlen (progname) + 1);
+	  char *startp, *endp, *nstore;
+	  size_t prefixlen = strlen (temp) + 1;
+	  if (prefixlen < 2)
+	    prefixlen = 2;
+
+	  nstore = (char *) alloca (prefixlen + strlen (progname) + 1);
 
 	  startp = endp = temp;
 	  while (1)