The back ends now contain their own copies of the Config structure,

[sgt/putty] / unix / uxplink.c

diff --git a/unix/uxplink.c b/unix/uxplink.c
index a005ce6..295e80b 100644 (file)
--- a/unix/uxplink.c
+++ b/unix/uxplink.c
@@ -4,8 +4,10 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <errno.h>
 #include <assert.h>
 #include <stdarg.h>
+#include <signal.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <termios.h>
@@ -208,6 +210,13 @@ int from_backend(void *frontend_handle, int is_stderr, char *data, int len)
     return osize + esize;
 }
 
+int signalpipe[2];
+
+void sigwinch(int signum)
+{
+    write(signalpipe[1], "x", 1);
+}
+
 /*
  * Short description of parameters.
  */
@@ -292,7 +301,8 @@ int main(int argc, char **argv)
     while (--argc) {
        char *p = *++argv;
        if (*p == '-') {
-           int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL), 1);
+           int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL),
+                                           1, &cfg);
            if (ret == -2) {
                fprintf(stderr,
                        "plink: option \"%s\" requires an argument\n", p);
@@ -470,7 +480,7 @@ int main(int argc, char **argv)
     /*
      * Perform command-line overrides on session configuration.
      */
-    cmdline_run_saved();
+    cmdline_run_saved(&cfg);
 
     /*
      * Trim a colon suffix off the hostname if it's there.
@@ -520,6 +530,15 @@ int main(int argc, char **argv)
     if (portnumber != -1)
        cfg.port = portnumber;
 
+    /*
+     * Set up the pipe we'll use to tell us about SIGWINCH.
+     */
+    if (pipe(signalpipe) < 0) {
+       perror("pipe");
+       exit(1);
+    }
+    putty_signal(SIGWINCH, sigwinch);
+
     sk_init();
 
     /*
@@ -532,7 +551,7 @@ int main(int argc, char **argv)
        /* nodelay is only useful if stdin is a terminal device */
        int nodelay = cfg.tcp_nodelay && isatty(0);
 
-       error = back->init(NULL, &backhandle, cfg.host, cfg.port,
+       error = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port,
                           &realhost, nodelay);
        if (error) {
            fprintf(stderr, "Unable to open connection:\n%s\n", error);
@@ -565,6 +584,8 @@ int main(int argc, char **argv)
        FD_ZERO(&xset);
        maxfd = 0;
 
+       FD_SET_MAX(signalpipe[0], maxfd, rset);
+
        if (connopen && !sending &&
            back->socket(backhandle) != NULL &&
            back->sendok(backhandle) &&
@@ -610,7 +631,9 @@ int main(int argc, char **argv)
                FD_SET_MAX(socket, maxfd, xset);
        }
 
-       ret = select(maxfd, &rset, &wset, &xset, NULL);
+       do {
+           ret = select(maxfd, &rset, &wset, &xset, NULL);
+       } while (ret < 0 && errno == EINTR);
 
        if (ret < 0) {
            perror("select");
@@ -632,6 +655,14 @@ int main(int argc, char **argv)
                select_result(socket, 2);
        }
 
+       if (FD_ISSET(signalpipe[0], &rset)) {
+           char c[1];
+           struct winsize size;
+           read(signalpipe[0], c, 1); /* ignore its value; it'll be `x' */
+           if (ioctl(0, TIOCGWINSZ, (void *)&size) >= 0)
+               back->size(backhandle, size.ws_col, size.ws_row);
+       }
+
        if (FD_ISSET(0, &rset)) {
            char buf[4096];
            int ret;