From a627d42e51ffa71e014d7b2d2c07118122fd3ec3 Mon Sep 17 00:00:00 2001 From: Darren Tucker Date: Sun, 2 Jun 2013 07:31:17 +1000 Subject: - djm@cvs.openbsd.org 2013/05/17 00:13:13 [xmalloc.h cipher.c sftp-glob.c ssh-keyscan.c ssh.c sftp-common.c ssh-ecdsa.c auth2-chall.c compat.c readconf.c kexgexs.c monitor.c gss-genr.c cipher-3des1.c kex.c monitor_wrap.c ssh-pkcs11-client.c auth-options.c rsa.c auth2-pubkey.c sftp.c hostfile.c auth2.c servconf.c auth.c authfile.c xmalloc.c uuencode.c sftp-client.c auth2-gss.c sftp-server.c bufaux.c mac.c session.c jpake.c kexgexc.c sshconnect.c auth-chall.c auth2-passwd.c sshconnect1.c buffer.c kexecdhs.c kexdhs.c ssh-rsa.c auth1.c ssh-pkcs11.c auth2-kbdint.c kexdhc.c sshd.c umac.c ssh-dss.c auth2-jpake.c bufbn.c clientloop.c monitor_mm.c scp.c roaming_client.c serverloop.c key.c auth-rsa.c ssh-pkcs11-helper.c ssh-keysign.c ssh-keygen.c match.c channels.c sshconnect2.c addrmatch.c mux.c canohost.c kexecdhc.c schnorr.c ssh-add.c misc.c auth2-hostbased.c ssh-agent.c bufec.c groupaccess.c dns.c packet.c readpass.c authfd.c moduli.c] bye, bye xfree(); ok markus@ --- mux.c | 122 ++++++++++++++++++++++++++++-------------------------------------- 1 file changed, 52 insertions(+), 70 deletions(-) (limited to 'mux.c') diff --git a/mux.c b/mux.c index a6bcbbaca..6c55db981 100644 --- a/mux.c +++ b/mux.c @@ -1,4 +1,4 @@ -/* $OpenBSD: mux.c,v 1.40 2013/04/22 01:17:18 dtucker Exp $ */ +/* $OpenBSD: mux.c,v 1.41 2013/05/17 00:13:13 djm Exp $ */ /* * Copyright (c) 2002-2008 Damien Miller * @@ -287,13 +287,12 @@ process_mux_master_hello(u_int rid, Channel *c, Buffer *m, Buffer *r) char *value = buffer_get_string_ret(m, NULL); if (name == NULL || value == NULL) { - if (name != NULL) - xfree(name); + free(name); goto malf; } debug2("Unrecognised slave extension \"%s\"", name); - xfree(name); - xfree(value); + free(name); + free(value); } state->hello_rcvd = 1; return 0; @@ -324,21 +323,17 @@ process_mux_new_session(u_int rid, Channel *c, Buffer *m, Buffer *r) (cctx->term = buffer_get_string_ret(m, &len)) == NULL || (cmd = buffer_get_string_ret(m, &len)) == NULL) { malf: - if (cmd != NULL) - xfree(cmd); - if (reserved != NULL) - xfree(reserved); + free(cmd); + free(reserved); for (j = 0; j < env_len; j++) - xfree(cctx->env[j]); - if (env_len > 0) - xfree(cctx->env); - if (cctx->term != NULL) - xfree(cctx->term); - xfree(cctx); + free(cctx->env[j]); + free(cctx->env); + free(cctx->term); + free(cctx); error("%s: malformed message", __func__); return -1; } - xfree(reserved); + free(reserved); reserved = NULL; while (buffer_len(m) > 0) { @@ -346,7 +341,7 @@ process_mux_new_session(u_int rid, Channel *c, Buffer *m, Buffer *r) if ((cp = buffer_get_string_ret(m, &len)) == NULL) goto malf; if (!env_permitted(cp)) { - xfree(cp); + free(cp); continue; } cctx->env = xrealloc(cctx->env, env_len + 2, @@ -367,7 +362,7 @@ process_mux_new_session(u_int rid, Channel *c, Buffer *m, Buffer *r) buffer_init(&cctx->cmd); buffer_append(&cctx->cmd, cmd, strlen(cmd)); - xfree(cmd); + free(cmd); cmd = NULL; /* Gather fds from client */ @@ -378,12 +373,11 @@ process_mux_new_session(u_int rid, Channel *c, Buffer *m, Buffer *r) for (j = 0; j < i; j++) close(new_fd[j]); for (j = 0; j < env_len; j++) - xfree(cctx->env[j]); - if (env_len > 0) - xfree(cctx->env); - xfree(cctx->term); + free(cctx->env[j]); + free(cctx->env); + free(cctx->term); buffer_free(&cctx->cmd); - xfree(cctx); + free(cctx); /* prepare reply */ buffer_put_int(r, MUX_S_FAILURE); @@ -408,14 +402,14 @@ process_mux_new_session(u_int rid, Channel *c, Buffer *m, Buffer *r) close(new_fd[0]); close(new_fd[1]); close(new_fd[2]); - xfree(cctx->term); + free(cctx->term); if (env_len != 0) { for (i = 0; i < env_len; i++) - xfree(cctx->env[i]); - xfree(cctx->env); + free(cctx->env[i]); + free(cctx->env); } buffer_free(&cctx->cmd); - xfree(cctx); + free(cctx); return 0; } @@ -620,7 +614,7 @@ mux_confirm_remote_forward(int type, u_int32_t seq, void *ctxt) buffer_put_int(&out, MUX_S_FAILURE); buffer_put_int(&out, fctx->rid); buffer_put_cstring(&out, failmsg); - xfree(failmsg); + free(failmsg); out: buffer_put_string(&c->output, buffer_ptr(&out), buffer_len(&out)); buffer_free(&out); @@ -649,11 +643,11 @@ process_mux_open_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) } if (*fwd.listen_host == '\0') { - xfree(fwd.listen_host); + free(fwd.listen_host); fwd.listen_host = NULL; } if (*fwd.connect_host == '\0') { - xfree(fwd.connect_host); + free(fwd.connect_host); fwd.connect_host = NULL; } @@ -664,10 +658,8 @@ process_mux_open_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) ftype != MUX_FWD_DYNAMIC) { logit("%s: invalid forwarding type %u", __func__, ftype); invalid: - if (fwd.listen_host) - xfree(fwd.listen_host); - if (fwd.connect_host) - xfree(fwd.connect_host); + free(fwd.listen_host); + free(fwd.connect_host); buffer_put_int(r, MUX_S_FAILURE); buffer_put_int(r, rid); buffer_put_cstring(r, "Invalid forwarding request"); @@ -769,13 +761,10 @@ process_mux_open_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) buffer_put_int(r, MUX_S_OK); buffer_put_int(r, rid); out: - if (fwd_desc != NULL) - xfree(fwd_desc); + free(fwd_desc); if (freefwd) { - if (fwd.listen_host != NULL) - xfree(fwd.listen_host); - if (fwd.connect_host != NULL) - xfree(fwd.connect_host); + free(fwd.listen_host); + free(fwd.connect_host); } return ret; } @@ -801,11 +790,11 @@ process_mux_close_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) } if (*fwd.listen_host == '\0') { - xfree(fwd.listen_host); + free(fwd.listen_host); fwd.listen_host = NULL; } if (*fwd.connect_host == '\0') { - xfree(fwd.connect_host); + free(fwd.connect_host); fwd.connect_host = NULL; } @@ -862,10 +851,8 @@ process_mux_close_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) buffer_put_int(r, MUX_S_OK); buffer_put_int(r, rid); - if (found_fwd->listen_host != NULL) - xfree(found_fwd->listen_host); - if (found_fwd->connect_host != NULL) - xfree(found_fwd->connect_host); + free(found_fwd->listen_host); + free(found_fwd->connect_host); found_fwd->listen_host = found_fwd->connect_host = NULL; found_fwd->listen_port = found_fwd->connect_port = 0; } else { @@ -874,12 +861,9 @@ process_mux_close_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) buffer_put_cstring(r, error_reason); } out: - if (fwd_desc != NULL) - xfree(fwd_desc); - if (fwd.listen_host != NULL) - xfree(fwd.listen_host); - if (fwd.connect_host != NULL) - xfree(fwd.connect_host); + free(fwd_desc); + free(fwd.listen_host); + free(fwd.connect_host); return ret; } @@ -896,14 +880,12 @@ process_mux_stdio_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) if ((reserved = buffer_get_string_ret(m, NULL)) == NULL || (chost = buffer_get_string_ret(m, NULL)) == NULL || buffer_get_int_ret(&cport, m) != 0) { - if (reserved != NULL) - xfree(reserved); - if (chost != NULL) - xfree(chost); + free(reserved); + free(chost); error("%s: malformed message", __func__); return -1; } - xfree(reserved); + free(reserved); debug2("%s: channel %d: request stdio fwd to %s:%u", __func__, c->self, chost, cport); @@ -915,7 +897,7 @@ process_mux_stdio_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) __func__, i); for (j = 0; j < i; j++) close(new_fd[j]); - xfree(chost); + free(chost); /* prepare reply */ buffer_put_int(r, MUX_S_FAILURE); @@ -939,7 +921,7 @@ process_mux_stdio_fwd(u_int rid, Channel *c, Buffer *m, Buffer *r) cleanup: close(new_fd[0]); close(new_fd[1]); - xfree(chost); + free(chost); return 0; } @@ -1001,7 +983,7 @@ process_mux_stop_listening(u_int rid, Channel *c, Buffer *m, Buffer *r) if (mux_listener_channel != NULL) { channel_free(mux_listener_channel); client_stop_mux(); - xfree(options.control_path); + free(options.control_path); options.control_path = NULL; mux_listener_channel = NULL; muxserver_sock = -1; @@ -1198,8 +1180,8 @@ muxserver_listen(void) close(muxserver_sock); muxserver_sock = -1; } - xfree(orig_control_path); - xfree(options.control_path); + free(orig_control_path); + free(options.control_path); options.control_path = NULL; options.control_master = SSHCTL_MASTER_NO; return; @@ -1224,7 +1206,7 @@ muxserver_listen(void) goto disable_mux_master; } unlink(options.control_path); - xfree(options.control_path); + free(options.control_path); options.control_path = orig_control_path; set_nonblock(muxserver_sock); @@ -1309,13 +1291,13 @@ mux_session_confirm(int id, int success, void *arg) cc->mux_pause = 0; /* start processing messages again */ c->open_confirm_ctx = NULL; buffer_free(&cctx->cmd); - xfree(cctx->term); + free(cctx->term); if (cctx->env != NULL) { for (i = 0; cctx->env[i] != NULL; i++) - xfree(cctx->env[i]); - xfree(cctx->env); + free(cctx->env[i]); + free(cctx->env); } - xfree(cctx); + free(cctx); } /* ** Multiplexing client support */ @@ -1499,8 +1481,8 @@ mux_client_hello_exchange(int fd) char *value = buffer_get_string(&m, NULL); debug2("Unrecognised master extension \"%s\"", name); - xfree(name); - xfree(value); + free(name); + free(value); } buffer_free(&m); return 0; @@ -1609,7 +1591,7 @@ mux_client_forward(int fd, int cancel_flag, u_int ftype, Forward *fwd) fwd_desc = format_forward(ftype, fwd); debug("Requesting %s %s", cancel_flag ? "cancellation of" : "forwarding of", fwd_desc); - xfree(fwd_desc); + free(fwd_desc); buffer_init(&m); buffer_put_int(&m, cancel_flag ? MUX_C_CLOSE_FWD : MUX_C_OPEN_FWD); -- cgit v1.2.3