- markus@cvs.openbsd.org 2001/08/28 15:39:48

     [ssh.1 ssh.c]
     allow: ssh -F configfile host

3 files changed, 38 insertions, 10 deletions

diff --git a/ChangeLog b/ChangeLog
index 6679cb961..46bb468e0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -39,6 +39,9 @@
    - markus@cvs.openbsd.org 2001/08/28 09:51:26
      [readconf.c]
      don't set DynamicForward unless Host matches
+   - markus@cvs.openbsd.org 2001/08/28 15:39:48
+     [ssh.1 ssh.c]
+     allow: ssh -F configfile host
 
 20010815
  - (bal) Fixed stray code in readconf.c that went in by mistake.
@@ -6362,4 +6365,4 @@
  - Wrote replacements for strlcpy and mkdtemp
  - Released 1.0pre1
 
-$Id: ChangeLog,v 1.1496 2001/09/12 17:35:27 mouring Exp $
+$Id: ChangeLog,v 1.1497 2001/09/12 17:48:04 mouring Exp $
diff --git a/ssh.1 b/ssh.1
index 4fef3d587..02c6ce6f9 100644
--- a/ssh.1
+++ b/ssh.1
@@ -34,7 +34,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\" $OpenBSD: ssh.1,v 1.131 2001/08/22 17:45:16 stevesk Exp $
+.\" $OpenBSD: ssh.1,v 1.132 2001/08/28 15:39:48 markus Exp $
 .Dd September 25, 1999
 .Dt SSH 1
 .Os
@@ -57,6 +57,7 @@
 .Op Fl m Ar mac_spec
 .Op Fl o Ar option
 .Op Fl p Ar port
+.Op Fl F Ar configfile
 .Oo Fl L Xo
 .Sm off
 .Ar port :
@@ -564,6 +565,14 @@ The default value can be set on a host-by-host basis in the
 configuration files; see the
 .Cm Compression
 option below.
+.It Fl F Ar configfile
+Specifies an alternative per-user configuration file.
+If a configuration file is given on the command line,
+the system-wide configuration file
+.Pq Pa /etc/ssh_config
+will be ignored.
+The default for the per-user configuration file is
+.Pa $HOME/.ssh/config .
 .It Fl L Ar port:host:hostport
 Specifies that the given port on the local (client) host is to be
 forwarded to the given host and port on the remote side.
diff --git a/ssh.c b/ssh.c
index 09e4ee540..e20758785 100644
--- a/ssh.c
+++ b/ssh.c
@@ -39,7 +39,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: ssh.c,v 1.138 2001/08/11 22:51:27 jakob Exp $");
+RCSID("$OpenBSD: ssh.c,v 1.139 2001/08/28 15:39:48 markus Exp $");
 
 #include <openssl/evp.h>
 #include <openssl/err.h>
@@ -118,6 +118,9 @@ int fork_after_authentication_flag = 0;
  */
 Options options;
 
+/* optional user configfile */
+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
@@ -160,6 +163,8 @@ usage(void)
         fprintf(stderr, "Options:\n");
         fprintf(stderr, "  -l user     Log in using this user name.\n");
         fprintf(stderr, "  -n          Redirect input from " _PATH_DEVNULL ".\n");
+        fprintf(stderr, "  -F config   Config file (default: ~/%s).\n",
+             _PATH_SSH_USER_CONFFILE);
         fprintf(stderr, "  -A          Enable authentication agent forwarding.\n");
         fprintf(stderr, "  -a          Disable authentication agent forwarding (default).\n");
 #ifdef AFS
@@ -315,7 +320,7 @@ main(int ac, char **av)
 
 again:
         while ((opt = getopt(ac, av,
-            "1246ab:c:e:fgi:kl:m:no:p:qstvxACD:I:L:NPR:TVX")) != -1) {
+            "1246ab:c:e:fgi:kl:m:no:p:qstvxACD:F:I:L:NPR:TVX")) != -1) {
                 switch (opt) {
                 case '1':
                         options.protocol = SSH_PROTO_1;
@@ -525,6 +530,9 @@ again:
                 case 'b':
                         options.bind_address = optarg;
                         break;
+                case 'F':
+                        config = optarg;
+                        break;
                 default:
                         usage();
                 }
@@ -609,12 +617,20 @@ again:
         log_init(av[0], options.log_level == -1 ? SYSLOG_LEVEL_INFO : options.log_level,
             SYSLOG_FACILITY_USER, 1);
 
-        /* Read per-user configuration file. */
-        snprintf(buf, sizeof buf, "%.100s/%.100s", pw->pw_dir, _PATH_SSH_USER_CONFFILE);
-        read_config_file(buf, host, &options);
-
-        /* Read systemwide configuration file. */
-        read_config_file(_PATH_HOST_CONFIG_FILE, host, &options);
+        /*
+         * Read per-user configuration file.  Ignore the system wide config
+         * file if the user specifies a config file on the command line.
+         */
+        if (config != NULL) {
+                read_config_file(config, host, &options);
+        } else  {
+                snprintf(buf, sizeof buf, "%.100s/%.100s", pw->pw_dir,
+                    _PATH_SSH_USER_CONFFILE);
+
+                /* Read systemwide configuration file. */
+                read_config_file(_PATH_HOST_CONFIG_FILE, host, &options);
+                read_config_file(buf, host, &options);
+        }
 
         /* Fill configuration defaults. */
         fill_default_options(&options);