From: Brendan Cully <brendan@kublai.com>
Date: Tue, 21 Feb 2006 21:52:17 +0000 (+0000)
Subject: Preallocate some buffer space before attempting vsnprintf in
X-Git-Tag: mutt-1-5-12-rel~137
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f1c3e972a8c6415978e4f8ed0a8ae643e57439f1;p=mutt

Preallocate some buffer space before attempting vsnprintf in
mutt_buffer_printf (Solaris 9 workaround).
---

diff --git a/muttlib.c b/muttlib.c
index 1a4eee27..3cca4c0a 100644
--- a/muttlib.c
+++ b/muttlib.c
@@ -1429,6 +1429,14 @@ int mutt_buffer_printf (BUFFER* buf, const char* fmt, ...)
 
   doff = buf->dptr - buf->data;
   blen = buf->dsize - doff;
+  /* solaris 9 vsnprintf barfs when blen is 0 */
+  if (!blen)
+  {
+    blen = 128;
+    buf->dsize += blen;
+    safe_realloc (&buf->data, buf->dsize);
+    buf->dptr = buf->data + doff;
+  }
   if ((len = vsnprintf (buf->dptr, blen, fmt, ap)) >= blen)
   {
     blen = ++len - blen;