1 files changed, 19 insertions, 16 deletions

diff --git a/ssh.c b/ssh.c
index 91e7c3511..ee51823cd 100644
--- a/ssh.c
+++ b/ssh.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh.c,v 1.500 2019/01/19 21:43:56 djm Exp $ */
+/* $OpenBSD: ssh.c,v 1.507 2019/09/13 04:27:35 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -162,7 +162,7 @@ char *config = NULL;
 
 /*
  * Name of the host we are connecting to.  This is the name given on the
- * command line, or the HostName specified for the user-supplied name in a
+ * command line, or the Hostname specified for the user-supplied name in a
  * configuration file.
  */
 char *host;
@@ -236,7 +236,8 @@ resolve_host(const char *name, int port, int logerr, char *cname, size_t clen)
 {
         char strport[NI_MAXSERV];
         struct addrinfo hints, *res;
-        int gaierr, loglevel = SYSLOG_LEVEL_DEBUG1;
+        int gaierr;
+        LogLevel loglevel = SYSLOG_LEVEL_DEBUG1;
 
         if (port <= 0)
                 port = default_ssh_port();
@@ -595,7 +596,6 @@ main(int ac, char **av)
         struct ssh_digest_ctx *md;
         u_char conn_hash[SSH_DIGEST_MAX_LENGTH];
 
-        ssh_malloc_init();      /* must be called before any mallocs */
         /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
         sanitise_stdfd();
 
@@ -773,7 +773,7 @@ main(int ac, char **av)
                         break;
                 case 'i':
                         p = tilde_expand_filename(optarg, getuid());
-                        if (stat(p, &st) < 0)
+                        if (stat(p, &st) == -1)
                                 fprintf(stderr, "Warning: Identity file %s "
                                     "not accessible: %s.\n", p,
                                     strerror(errno));
@@ -790,8 +790,11 @@ main(int ac, char **av)
 #endif
                         break;
                 case 'J':
-                        if (options.jump_host != NULL)
-                                fatal("Only a single -J option permitted");
+                        if (options.jump_host != NULL) {
+                                fatal("Only a single -J option is permitted "
+                                    "(use commas to separate multiple "
+                                    "jump hops)");
+                        }
                         if (options.proxy_command != NULL)
                                 fatal("Cannot specify -J with ProxyCommand");
                         if (parse_jump(optarg, &options, 1) == -1)
@@ -874,7 +877,7 @@ main(int ac, char **av)
                         }
                         break;
                 case 'c':
-                        if (!ciphers_valid(*optarg == '+' ?
+                        if (!ciphers_valid(*optarg == '+' || *optarg == '^' ?
                             optarg + 1 : optarg)) {
                                 fprintf(stderr, "Unknown cipher type '%s'\n",
                                     optarg);
@@ -1366,7 +1369,7 @@ main(int ac, char **av)
         timeout_ms = options.connection_timeout * 1000;
 
         /* Open a connection to the remote host. */
-        if (ssh_connect(ssh, host, addrs, &hostaddr, options.port,
+        if (ssh_connect(ssh, host_arg, host, addrs, &hostaddr, options.port,
             options.address_family, options.connection_attempts,
             &timeout_ms, options.tcp_keep_alive) != 0)
                 exit(255);
@@ -1423,7 +1426,7 @@ main(int ac, char **av)
         if (config == NULL) {
                 r = snprintf(buf, sizeof buf, "%s%s%s", pw->pw_dir,
                     strcmp(pw->pw_dir, "/") ? "/" : "", _PATH_SSH_USER_DIR);
-                if (r > 0 && (size_t)r < sizeof(buf) && stat(buf, &st) < 0) {
+                if (r > 0 && (size_t)r < sizeof(buf) && stat(buf, &st) == -1) {
 #ifdef WITH_SELINUX
                         ssh_selinux_setfscreatecon(buf);
 #endif
@@ -1590,7 +1593,7 @@ fork_postauth(void)
                 control_persist_detach();
         debug("forking to background");
         fork_after_authentication_flag = 0;
-        if (daemon(1, 1) < 0)
+        if (daemon(1, 1) == -1)
                 fatal("daemon() failed: %.200s", strerror(errno));
 }
 
@@ -1686,8 +1689,8 @@ ssh_init_stdio_forwarding(struct ssh *ssh)
         debug3("%s: %s:%d", __func__, options.stdio_forward_host,
             options.stdio_forward_port);
 
-        if ((in = dup(STDIN_FILENO)) < 0 ||
-            (out = dup(STDOUT_FILENO)) < 0)
+        if ((in = dup(STDIN_FILENO)) == -1 ||
+            (out = dup(STDOUT_FILENO)) == -1)
                 fatal("channel_connect_stdio_fwd: dup() in/out failed");
         if ((c = channel_connect_stdio_fwd(ssh, options.stdio_forward_host,
             options.stdio_forward_port, in, out)) == NULL)
@@ -1840,7 +1843,7 @@ ssh_session2_open(struct ssh *ssh)
         out = dup(STDOUT_FILENO);
         err = dup(STDERR_FILENO);
 
-        if (in < 0 || out < 0 || err < 0)
+        if (in == -1 || out == -1 || err == -1)
                 fatal("dup() in/out/err failed");
 
         /* enable nonblocking unless tty */
@@ -1971,7 +1974,7 @@ ssh_session2(struct ssh *ssh, struct passwd *pw)
                 if ((devnull = open(_PATH_DEVNULL, O_WRONLY)) == -1)
                         error("%s: open %s: %s", __func__,
                             _PATH_DEVNULL, strerror(errno));
-                if (dup2(devnull, STDOUT_FILENO) < 0)
+                if (dup2(devnull, STDOUT_FILENO) == -1)
                         fatal("%s: dup2() stdout failed", __func__);
                 if (devnull > STDERR_FILENO)
                         close(devnull);
@@ -2158,7 +2161,7 @@ main_sigchld_handler(int sig)
         int status;
 
         while ((pid = waitpid(-1, &status, WNOHANG)) > 0 ||
-            (pid < 0 && errno == EINTR))
+            (pid == -1 && errno == EINTR))
                 ;
         errno = save_errno;
 }