X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=lib%2Fff-printf.c;h=769f830e1cd5423e7db5e80831bc090ba67e98b0;hb=b4d79987a979bcbf749294c706fdc8c4ae8f9304;hp=fe9c964283d2a0e6e1eff67b90fd3420e89014b7;hpb=e23d835f0f224d48f5c0b39a0f2bd18b342e703d;p=libucw.git

diff --git a/lib/ff-printf.c b/lib/ff-printf.c
index fe9c9642..769f830e 100644
--- a/lib/ff-printf.c
+++ b/lib/ff-printf.c
@@ -1,7 +1,7 @@
 /*
  *	UCW Library -- Printf on Fastbuf Streams
  *
- *	(c) 2002 Martin Mares <mj@ucw.cz>
+ *	(c) 2002--2005 Martin Mares <mj@ucw.cz>
  *
  *	This software may be freely distributed and used according to the terms
  *	of the GNU Lesser General Public License.
@@ -17,11 +17,14 @@ vbprintf(struct fastbuf *b, char *msg, va_list args)
 {
   byte *buf;
   int len, r;
+  va_list args2;
 
   len = bdirect_write_prepare(b, &buf);
   if (len >= 16)
     {
-      r = vsnprintf(buf, len, msg, args);
+      va_copy(args2, args);
+      r = vsnprintf(buf, len, msg, args2);
+      va_end(args2);
       if (r < 0)
 	len = 256;
       else if (r < len)
@@ -38,7 +41,9 @@ vbprintf(struct fastbuf *b, char *msg, va_list args)
   while (1)
     {
       buf = alloca(len);
-      r = vsnprintf(buf, len, msg, args);
+      va_copy(args2, args);
+      r = vsnprintf(buf, len, msg, args2);
+      va_end(args2);
       if (r < 0)
 	len += len;
       else if (r < len)