X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/5a9eb1056517b6ee6efa526a3a6b5a21aa802648..c85623f918b8a6c639afc15604414f9b113bb20d:/unix/uxplink.c

diff --git a/unix/uxplink.c b/unix/uxplink.c
index a005ce6d..2778bc5a 100644
--- 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>
@@ -70,11 +72,12 @@ struct termios orig_termios;
 
 static Backend *back;
 static void *backhandle;
+static Config cfg;
 
 /*
  * Default settings that are specific to pterm.
  */
-char *platform_default_s(char *name)
+char *platform_default_s(const char *name)
 {
     if (!strcmp(name, "X11Display"))
 	return getenv("DISPLAY");
@@ -122,7 +125,7 @@ char *platform_default_s(char *name)
     return NULL;
 }
 
-int platform_default_i(char *name, int def)
+int platform_default_i(const char *name, int def)
 {
     if (!strcmp(name, "TermWidth") ||
 	!strcmp(name, "TermHeight")) {
@@ -133,7 +136,7 @@ int platform_default_i(char *name, int def)
     return def;
 }
 
-char *x_get_default(char *key)
+char *x_get_default(const char *key)
 {
     return NULL;		       /* this is a stub */
 }
@@ -208,6 +211,13 @@ 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 +302,8 @@ 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 +481,7 @@ 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.
@@ -520,19 +531,28 @@ 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();
 
     /*
      * Start up the connection.
      */
-    logctx = log_init(NULL);
+    logctx = log_init(NULL, &cfg);
     {
 	char *error;
 	char *realhost;
 	/* 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 +585,8 @@ 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 +632,9 @@ 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 +656,14 @@ 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;