[Libguestfs] [PATCH] guestfs: don't fault upon failed vasprintf

[Jim Meyering]

>From 774e791d2617b318223317aa004e495b9d274d97 Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering at redhat.com>
Date: Mon, 3 Aug 2009 08:43:54 -0400
Subject: [PATCH] guestfs: don't fault upon failed vasprintf

* src/guestfs.c (guestfs_perrorf): Handle failed vasprintf.
---
 src/guestfs.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/src/guestfs.c b/src/guestfs.c
index 63e24f0..802c1d2 100644
--- a/src/guestfs.c
+++ b/src/guestfs.c
@@ -443,9 +443,11 @@ guestfs_perrorf (guestfs_h *g, const char *fs, ...)
   int err = errno;

   va_start (args, fs);
-  vasprintf (&msg, fs, args);
+  int err = vasprintf (&msg, fs, args);
   va_end (args);

+  if (err < 0) return;
+
 #ifndef _GNU_SOURCE
   char buf[256];
   strerror_r (err, buf, sizeof buf);
--
1.6.3.3