62 lines
1.4 KiB
Text
62 lines
1.4 KiB
Text
$NetBSD: patch-ai,v 1.2 2003/09/17 14:27:07 jwise Exp $
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Index: buffer.c
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===================================================================
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RCS file: /cvs/src/usr.bin/ssh/buffer.c,v
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retrieving revision 1.16
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retrieving revision 1.18
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diff -u -r1.16 -r1.18
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--- buffer.c 26 Jun 2002 08:54:18 -0000 1.16
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+++ buffer.c 16 Sep 2003 21:02:39 -0000 1.18
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@@ -23,8 +23,11 @@
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void
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buffer_init(Buffer *buffer)
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{
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- buffer->alloc = 4096;
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- buffer->buf = xmalloc(buffer->alloc);
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+ const u_int len = 4096;
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+
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+ buffer->alloc = 0;
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+ buffer->buf = xmalloc(len);
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+ buffer->alloc = len;
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buffer->offset = 0;
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buffer->end = 0;
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}
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@@ -34,8 +37,10 @@
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void
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buffer_free(Buffer *buffer)
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{
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- memset(buffer->buf, 0, buffer->alloc);
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- xfree(buffer->buf);
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+ if (buffer->alloc > 0) {
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+ memset(buffer->buf, 0, buffer->alloc);
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+ xfree(buffer->buf);
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+ }
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}
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/*
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@@ -69,6 +74,7 @@
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void *
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buffer_append_space(Buffer *buffer, u_int len)
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{
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+ u_int newlen;
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void *p;
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if (len > 0x100000)
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@@ -98,11 +104,13 @@
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goto restart;
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}
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/* Increase the size of the buffer and retry. */
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- buffer->alloc += len + 32768;
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- if (buffer->alloc > 0xa00000)
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+
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+ newlen = buffer->alloc + len + 32768;
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+ if (newlen > 0xa00000)
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fatal("buffer_append_space: alloc %u not supported",
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- buffer->alloc);
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- buffer->buf = xrealloc(buffer->buf, buffer->alloc);
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+ newlen);
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+ buffer->buf = xrealloc(buffer->buf, newlen);
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+ buffer->alloc = newlen;
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goto restart;
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/* NOTREACHED */
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}
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