X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/3608528b1152168da3032e8df4023df45b87299f..72b364a8a94e6c1f60c43aaef2f7c187b44f7d56:/unix/uxplink.c

diff --git a/unix/uxplink.c b/unix/uxplink.c
index ee446ece..99acc6f4 100644
--- a/unix/uxplink.c
+++ b/unix/uxplink.c
@@ -13,6 +13,7 @@
 #include <termios.h>
 #include <pwd.h>
 #include <sys/ioctl.h>
+#include <sys/select.h>
 
 #define PUTTY_DO_GLOBALS	       /* actually _define_ globals */
 #include "putty.h"
@@ -73,8 +74,6 @@ static Config cfg;
  */
 char *platform_default_s(const char *name)
 {
-    if (!strcmp(name, "X11Display"))
-	return dupstr(getenv("DISPLAY"));
     if (!strcmp(name, "TermType"))
 	return dupstr(getenv("TERM"));
     if (!strcmp(name, "UserName"))
@@ -229,9 +228,11 @@ static void usage(void)
     printf("  -A -a     enable / disable agent forwarding\n");
     printf("  -t -T     enable / disable pty allocation\n");
     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("  -s        remote command is an SSH subsystem (SSH-2 only)\n");
+    printf("  -N        don't start a shell/command (SSH-2 only)\n");
     exit(1);
 }
 
@@ -253,6 +254,7 @@ int main(int argc, char **argv)
     int errors;
     int use_subsystem = 0;
     void *ldisc, *logctx;
+    long now;
 
     ssh_get_line = console_get_line;
 
@@ -471,7 +473,7 @@ int main(int argc, char **argv)
 
     /* See if host is of the form user@host */
     if (cfg.host[0] != '\0') {
-	char *atsign = strchr(cfg.host, '@');
+	char *atsign = strrchr(cfg.host, '@');
 	/* Make sure we're not overflowing the user field */
 	if (atsign) {
 	    if (atsign - cfg.host < sizeof cfg.username) {
@@ -585,6 +587,7 @@ int main(int argc, char **argv)
     atexit(cleanup_termios);
     ldisc_update(NULL, 1, 1);
     sending = FALSE;
+    now = GETTICKCOUNT();
 
     while (1) {
 	fd_set rset, wset, xset;
@@ -645,7 +648,23 @@ int main(int argc, char **argv)
 	}
 
 	do {
-	    ret = select(maxfd, &rset, &wset, &xset, NULL);
+	    long next, ticks;
+	    struct timeval tv, *ptv;
+
+	    if (run_timers(now, &next)) {
+		ticks = next - GETTICKCOUNT();
+		if (ticks < 0) ticks = 0;   /* just in case */
+		tv.tv_sec = ticks / 1000;
+		tv.tv_usec = ticks % 1000 * 1000;
+		ptv = &tv;
+	    } else {
+		ptv = NULL;
+	    }
+	    ret = select(maxfd, &rset, &wset, &xset, ptv);
+	    if (ret == 0)
+		now = next;
+	    else
+		now = GETTICKCOUNT();
 	} while (ret < 0 && errno == EINTR);
 
 	if (ret < 0) {