X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=unix%2Fuxplink.c;h=3e32925cd4e182cf54baa1d0a7397bce415adcf7;hb=f004bcca17a789356c32527a396b68b71a773db2;hp=87efe78a55fec59d0fe2d15571f01a28a727b063;hpb=7223973988ae6cff1888ef899a191d1885b7af43;p=PuTTY.git

diff --git a/unix/uxplink.c b/unix/uxplink.c
index 87efe78a..3e32925c 100644
--- a/unix/uxplink.c
+++ b/unix/uxplink.c
@@ -113,14 +113,12 @@ static void *backhandle;
 static Conf *conf;
 
 /*
- * Default settings that are specific to pterm.
+ * Default settings that are specific to Unix plink.
  */
 char *platform_default_s(const char *name)
 {
     if (!strcmp(name, "TermType"))
 	return dupstr(getenv("TERM"));
-     if (!strcmp(name, "UserName"))
- 	return get_username();
     if (!strcmp(name, "SerialLine"))
 	return dupstr("/dev/ttyS0");
     return NULL;
@@ -152,7 +150,7 @@ int term_ldisc(Terminal *term, int mode)
 {
     return FALSE;
 }
-void ldisc_update(void *frontend, int echo, int edit)
+void frontend_echoedit_update(void *frontend, int echo, int edit)
 {
     /* Update stdin read mode to reflect changes in line discipline. */
     struct termios mode;
@@ -178,8 +176,9 @@ void ldisc_update(void *frontend, int echo, int edit)
 	mode.c_cc[VMIN] = 1;
 	mode.c_cc[VTIME] = 0;
 	/* FIXME: perhaps what we do with IXON/IXOFF should be an
-	 * argument to ldisc_update(), to allow implementation of SSH-2
-	 * "xon-xoff" and Rlogin's equivalent? */
+	 * argument to frontend_echoedit_update(), to allow
+	 * implementation of SSH-2 "xon-xoff" and Rlogin's
+	 * equivalent? */
 	mode.c_iflag &= ~IXON;
 	mode.c_iflag &= ~IXOFF;
     }
@@ -204,7 +203,7 @@ static char *get_ttychar(struct termios *t, int index)
     cc_t c = t->c_cc[index];
 #if defined(_POSIX_VDISABLE)
     if (c == _POSIX_VDISABLE)
-	return dupprintf("");
+	return dupstr("");
 #endif
     return dupprintf("^<%d>", c);
 }
@@ -542,7 +541,7 @@ void uxsel_input_remove(int id) { }
  */
 static void usage(void)
 {
-    printf("PuTTY Link: command-line connection utility\n");
+    printf("Plink: command-line connection utility\n");
     printf("%s\n", ver);
     printf("Usage: plink [options] [user@]host [command]\n");
     printf("       (\"host\" can also be a PuTTY saved session name)\n");
@@ -556,6 +555,8 @@ static void usage(void)
     printf("  -P port   connect to specified port\n");
     printf("  -l user   connect with specified username\n");
     printf("  -batch    disable all interactive prompts\n");
+    printf("  -sercfg configuration-string (e.g. 19200,8,n,1,X)\n");
+    printf("            Specify the serial configuration (serial only)\n");
     printf("The following options only apply to SSH connections:\n");
     printf("  -pw passw login with specified password\n");
     printf("  -D [listen-IP:]listen-port\n");
@@ -570,16 +571,16 @@ static void usage(void)
     printf("  -1 -2     force use of particular protocol version\n");
     printf("  -4 -6     force use of IPv4 or IPv6\n");
     printf("  -C        enable compression\n");
-    printf("  -i key    private key file for authentication\n");
+    printf("  -i key    private key file for user authentication\n");
     printf("  -noagent  disable use of Pageant\n");
     printf("  -agent    enable use of Pageant\n");
+    printf("  -hostkey aa:bb:cc:...\n");
+    printf("            manually specify a host key (may be repeated)\n");
     printf("  -m file   read remote command(s) from file\n");
     printf("  -s        remote command is an SSH subsystem (SSH-2 only)\n");
     printf("  -N        don't start a shell/command (SSH-2 only)\n");
     printf("  -nc host:port\n");
     printf("            open tunnel in place of session (SSH-2 only)\n");
-    printf("  -sercfg configuration-string (e.g. 19200,8,n,1,X)\n");
-    printf("            Specify the serial configuration (serial only)\n");
     exit(1);
 }
 
@@ -591,6 +592,9 @@ static void version(void)
 
 void frontend_net_error_pending(void) {}
 
+const int share_can_be_downstream = TRUE;
+const int share_can_be_upstream = TRUE;
+
 int main(int argc, char **argv)
 {
     int sending;
@@ -702,8 +706,7 @@ int main(int argc, char **argv)
 			q += 2;
 		    conf_set_int(conf, CONF_protocol, PROT_TELNET);
 		    p = q;
-		    while (*p && *p != ':' && *p != '/')
-			p++;
+                    p += host_strcspn(p, ":/");
 		    c = *p;
 		    if (*p)
 			*p++ = '\0';
@@ -841,10 +844,21 @@ int main(int argc, char **argv)
 	    }
 	}
 
-	/*
-	 * Trim off a colon suffix if it's there.
-	 */
-	host[strcspn(host, ":")] = '\0';
+        /*
+         * Trim a colon suffix off the hostname if it's there. In
+         * order to protect unbracketed IPv6 address literals
+         * against this treatment, we do not do this if there's
+         * _more_ than one colon.
+         */
+        {
+            char *c = host_strchr(host, ':');
+ 
+            if (c) {
+                char *d = host_strchr(c+1, ':');
+                if (!d)
+                    *c = '\0';
+            }
+        }
 
 	/*
 	 * Remove any remaining whitespace.
@@ -867,6 +881,18 @@ int main(int argc, char **argv)
      */
     cmdline_run_saved(conf);
 
+    /*
+     * If we have no better ideas for the remote username, use the local
+     * one, as 'ssh' does.
+     */
+    if (conf_get_str(conf, CONF_username)[0] == '\0') {
+	char *user = get_username();
+	if (user) {
+	    conf_set_str(conf, CONF_username, user);
+	    sfree(user);
+	}
+    }
+
     /*
      * Apply subsystem status.
      */
@@ -966,7 +992,7 @@ int main(int argc, char **argv)
      */
     local_tty = (tcgetattr(STDIN_FILENO, &orig_termios) == 0);
     atexit(cleanup_termios);
-    ldisc_update(NULL, 1, 1);
+    frontend_echoedit_update(NULL, 1, 1);
     sending = FALSE;
     now = GETTICKCOUNT();