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Additional corrections to OpenSSH buffer handling.

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Obtained from:  openssh.org
Originally committed to head by: nectar
This commit is contained in:
Josef Karthauser 2003-09-26 19:15:53 +00:00
parent 454412956c
commit dcf5581978
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor-crypto/openssh/dist/; revision=120489
2 changed files with 12 additions and 6 deletions
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13
crypto/openssh/buffer.c
View File

@ -23,8 +23,11 @@ RCSID("$OpenBSD: buffer.c,v 1.17 2003/09/16 03:03:47 deraadt Exp $");
void
buffer_init(Buffer *buffer)
{
buffer->alloc = 4096;
buffer->buf = xmalloc(buffer->alloc);
const u_int len = 4096;
buffer->alloc = 0;
buffer->buf = xmalloc(len);
buffer->alloc = len;
buffer->offset = 0;
buffer->end = 0;
}
@ -34,8 +37,10 @@ buffer_init(Buffer *buffer)
void
buffer_free(Buffer *buffer)
{
memset(buffer->buf, 0, buffer->alloc);
xfree(buffer->buf);
if (buffer->alloc > 0) {
memset(buffer->buf, 0, buffer->alloc);
xfree(buffer->buf);
}
}
/*

5
crypto/openssh/channels.c
View File

@ -229,12 +229,13 @@ channel_new(char *ctype, int type, int rfd, int wfd, int efd,
if (found == -1) {
/* There are no free slots. Take last+1 slot and expand the array. */
found = channels_alloc;
channels_alloc += 10;
if (channels_alloc > 10000)
fatal("channel_new: internal error: channels_alloc %d "
"too big.", channels_alloc);
channels = xrealloc(channels,
(channels_alloc + 10) * sizeof(Channel *));
channels_alloc += 10;
debug2("channel: expanding %d", channels_alloc);
channels = xrealloc(channels, channels_alloc * sizeof(Channel *));
for (i = found; i < channels_alloc; i++)
channels[i] = NULL;
}