New option for plink: "-s" specifies that the remote command is an SSH-2

[sgt/putty] / plink.c

diff --git a/plink.c b/plink.c
index bf17f53..41a5001 100644 (file)
--- a/plink.c
+++ b/plink.c
@@ -240,6 +240,7 @@ static void usage(void)
     printf("  -1 -2     force use of particular protocol version\n");
     printf("  -C        enable compression\n");
     printf("  -i key    private key file for authentication\n");
+    printf("  -s        remote command is an SSH subsystem (SSH-2 only)\n");
     exit(1);
 }
 
@@ -279,6 +280,7 @@ int main(int argc, char **argv)
     int connopen;
     int exitcode;
     int errors;
+    int use_subsystem = 0;
 
     ssh_get_line = console_get_line;
 
@@ -331,6 +333,9 @@ int main(int argc, char **argv)
                continue;
            } else if (!strcmp(p, "-batch")) {
                console_batch_mode = 1;
+           } else if (!strcmp(p, "-s")) {
+               /* Save status to write to cfg later. */
+               use_subsystem = 1;
            } else {
                fprintf(stderr, "plink: unknown option \"%s\"\n", p);
                errors = 1;
@@ -489,6 +494,12 @@ int main(int argc, char **argv)
     cmdline_run_saved(&cfg);
 
     /*
+     * Apply subsystem status.
+     */
+    if (use_subsystem)
+       cfg.ssh_subsys = TRUE;
+
+    /*
      * Trim a colon suffix off the hostname if it's there.
      */
     cfg.host[strcspn(cfg.host, ":")] = '\0';