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b0fb6872ed
[atomicio.c auth-bsdauth.c auth-chall.c auth-krb5.c auth-options.c]
[auth-pam.c auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c]
[auth-shadow.c auth-skey.c auth.c auth1.c auth2-chall.c]
[auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c]
[auth2-pubkey.c auth2.c authfd.c authfile.c bufaux.c buffer.c]
[canohost.c channels.c cipher-3des1.c cipher-acss.c cipher-aes.c]
[cipher-bf1.c cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c]
[compress.c deattack.c dh.c dispatch.c dns.c entropy.c fatal.c]
[groupaccess.c hostfile.c includes.h kex.c kexdh.c kexdhc.c]
[kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c log.c loginrec.c]
[loginrec.h logintest.c mac.c match.c md-sha256.c md5crypt.c misc.c]
[monitor.c monitor_fdpass.c monitor_mm.c monitor_wrap.c msg.c]
[nchan.c packet.c progressmeter.c readconf.c readpass.c rsa.c]
[scard.c scp.c servconf.c serverloop.c session.c sftp-client.c]
[sftp-common.c sftp-glob.c sftp-server.c sftp.c ssh-add.c]
[ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c ssh-keysign.c]
[ssh-rand-helper.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c]
[sshconnect2.c sshd.c sshlogin.c sshpty.c sshtty.c ttymodes.c]
[uidswap.c uuencode.c xmalloc.c openbsd-compat/bsd-arc4random.c]
[openbsd-compat/bsd-closefrom.c openbsd-compat/bsd-cygwin_util.c]
[openbsd-compat/bsd-getpeereid.c openbsd-compat/bsd-misc.c]
[openbsd-compat/bsd-nextstep.c openbsd-compat/bsd-snprintf.c]
[openbsd-compat/bsd-waitpid.c openbsd-compat/fake-rfc2553.c]
RCSID() can die
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/*
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* Copyright (c) 2002 Markus Friedl. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "includes.h"
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#include "buffer.h"
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#include "getput.h"
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#include "log.h"
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#include "atomicio.h"
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#include "msg.h"
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int
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ssh_msg_send(int fd, u_char type, Buffer *m)
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{
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u_char buf[5];
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u_int mlen = buffer_len(m);
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debug3("ssh_msg_send: type %u", (unsigned int)type & 0xff);
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PUT_32BIT(buf, mlen + 1);
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buf[4] = type; /* 1st byte of payload is mesg-type */
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if (atomicio(vwrite, fd, buf, sizeof(buf)) != sizeof(buf)) {
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error("ssh_msg_send: write");
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return (-1);
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}
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if (atomicio(vwrite, fd, buffer_ptr(m), mlen) != mlen) {
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error("ssh_msg_send: write");
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return (-1);
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}
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return (0);
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}
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int
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ssh_msg_recv(int fd, Buffer *m)
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{
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u_char buf[4];
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u_int msg_len;
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debug3("ssh_msg_recv entering");
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if (atomicio(read, fd, buf, sizeof(buf)) != sizeof(buf)) {
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if (errno != EPIPE)
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error("ssh_msg_recv: read: header");
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return (-1);
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}
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msg_len = GET_32BIT(buf);
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if (msg_len > 256 * 1024) {
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error("ssh_msg_recv: read: bad msg_len %u", msg_len);
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return (-1);
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}
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buffer_clear(m);
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buffer_append_space(m, msg_len);
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if (atomicio(read, fd, buffer_ptr(m), msg_len) != msg_len) {
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error("ssh_msg_recv: read: %s", strerror(errno));
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return (-1);
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}
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return (0);
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}
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