X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=ucw%2Fmempool-fmt.c;h=ba0e7877dfdbfd8cb5750cb4d471005dc70b2ff3;hb=1ddc0f01053b355c5805df3659866e11d50d60d0;hp=e58ce275797bf6ed91dd2ff78c399cb01e72ddce;hpb=031256ad2e123eec58521f8e3eb9496c197641d2;p=libucw.git

diff --git a/ucw/mempool-fmt.c b/ucw/mempool-fmt.c
index e58ce275..ba0e7877 100644
--- a/ucw/mempool-fmt.c
+++ b/ucw/mempool-fmt.c
@@ -37,7 +37,7 @@ mp_vprintf_at(struct mempool *mp, uns ofs, const char *fmt, va_list args)
     }
   else if ((uns)cnt >= mp_avail(mp) - ofs)
     {
-      ret = mp_grow(mp, cnt + 1) + ofs;
+      ret = mp_grow(mp, ofs + cnt + 1) + ofs;
       va_copy(args2, args);
       int cnt2 = vsnprintf(ret, cnt + 1, fmt, args2);
       va_end(args2);
@@ -68,7 +68,7 @@ char *
 mp_vprintf_append(struct mempool *mp, char *ptr, const char *fmt, va_list args)
 {
   uns ofs = mp_open(mp, ptr);
-  ASSERT(ofs);
+  ASSERT(ofs && !ptr[ofs - 1]);
   return mp_vprintf_at(mp, ofs - 1, fmt, args);
 }