diff options
| author |   deraadt <deraadt@openbsd.org> | 2003-09-16 03:03:47 +0000 |
|---|---|---|
| committer | deraadt <deraadt@openbsd.org> | 2003-09-16 03:03:47 +0000 |
| commit | e67d09ea7c114154207c0736e009607f2a70728e (patch) | |
| tree | de0e35bc404219ddafa6d4b5fe728638cc282f3c /usr.bin/ssh/buffer.c | |
| parent | tree unlock, as we move to 3.4-current (diff) | |
| download | wireguard-openbsd-e67d09ea7c114154207c0736e009607f2a70728e.tar.xz wireguard-openbsd-e67d09ea7c114154207c0736e009607f2a70728e.zip | |
do not expand buffer before attempting to reallocate it; markus ok
Diffstat (limited to 'usr.bin/ssh/buffer.c')
| -rw-r--r-- | usr.bin/ssh/buffer.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/usr.bin/ssh/buffer.c b/usr.bin/ssh/buffer.c index ad04b267e0d..8ff8c2f48b4 100644 --- a/usr.bin/ssh/buffer.c +++ b/usr.bin/ssh/buffer.c @@ -12,7 +12,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: buffer.c,v 1.16 2002/06/26 08:54:18 markus Exp $"); +RCSID("$OpenBSD: buffer.c,v 1.17 2003/09/16 03:03:47 deraadt Exp $"); #include "xmalloc.h" #include "buffer.h" @@ -69,6 +69,7 @@ buffer_append(Buffer *buffer, const void *data, u_int len) void * buffer_append_space(Buffer *buffer, u_int len) { + u_int newlen; void *p; if (len > 0x100000) @@ -98,11 +99,13 @@ restart: goto restart; } /* Increase the size of the buffer and retry. */ - buffer->alloc += len + 32768; - if (buffer->alloc > 0xa00000) + + newlen = buffer->alloc + len + 32768; + if (newlen > 0xa00000) fatal("buffer_append_space: alloc %u not supported", - buffer->alloc); - buffer->buf = xrealloc(buffer->buf, buffer->alloc); + newlen); + buffer->buf = xrealloc(buffer->buf, newlen); + buffer->alloc = newlen; goto restart; /* NOTREACHED */ } |