Initial skeleton.

[ashd.git] / lib / utils.c

diff --git a/lib/utils.c b/lib/utils.c
new file mode 100644 (file)
index 0000000..0045235
--- /dev/null
+++ b/lib/utils.c
@@ -0,0 +1,40 @@
+/*
+    ashd - A Sane HTTP Daemon
+    Copyright (C) 2008  Fredrik Tolf <fredrik@dolda2000.com>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdlib.h>
+
+#include <utils.h>
+
+void _sizebuf(struct buffer *buf, size_t wanted, size_t el)
+{
+    size_t n;
+    
+    n = buf->s;
+    if(n == 0)
+       n = 1;
+    while(n < wanted)
+       n <<= 1;
+    if(n <= buf->s)
+       return;
+    if(buf->b != NULL)
+       buf->b = srealloc(buf->b, n * el);
+    else
+       buf->b = smalloc(n * el);
+    buf->s = n;
+}
+