X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/973612f5e86c9eaabc812a47d81c5cb14f672249..e359e9c01acdf5aad21780e27e538cfd8d597aac:/unix/uxplink.c

diff --git a/unix/uxplink.c b/unix/uxplink.c
index 0e27366e..e9c6c9e6 100644
--- a/unix/uxplink.c
+++ b/unix/uxplink.c
@@ -25,6 +25,8 @@
 
 #define MAX_STDIN_BACKLOG 4096
 
+void *logctx;
+
 void fatalbox(char *p, ...)
 {
     va_list ap;
@@ -33,6 +35,10 @@ void fatalbox(char *p, ...)
     vfprintf(stderr, p, ap);
     va_end(ap);
     fputc('\n', stderr);
+    if (logctx) {
+        log_free(logctx);
+        logctx = NULL;
+    }
     cleanup_exit(1);
 }
 void modalfatalbox(char *p, ...)
@@ -43,6 +49,10 @@ void modalfatalbox(char *p, ...)
     vfprintf(stderr, p, ap);
     va_end(ap);
     fputc('\n', stderr);
+    if (logctx) {
+        log_free(logctx);
+        logctx = NULL;
+    }
     cleanup_exit(1);
 }
 void connection_fatal(void *frontend, char *p, ...)
@@ -53,6 +63,10 @@ void connection_fatal(void *frontend, char *p, ...)
     vfprintf(stderr, p, ap);
     va_end(ap);
     fputc('\n', stderr);
+    if (logctx) {
+        log_free(logctx);
+        logctx = NULL;
+    }
     cleanup_exit(1);
 }
 void cmdline_error(char *p, ...)
@@ -82,6 +96,8 @@ char *platform_default_s(const char *name)
 	return dupstr(getenv("TERM"));
     if (!strcmp(name, "UserName"))
 	return get_username();
+    if (!strcmp(name, "SerialLine"))
+	return dupstr("/dev/ttyS0");
     return NULL;
 }
 
@@ -416,9 +432,9 @@ int get_userpass_input(prompts_t *p, unsigned char *in, int inlen)
 /*
  * Handle data from a local tty in PARMRK format.
  */
-static void from_tty(void *buf, unsigned len)
+static void from_tty(void *vbuf, unsigned len)
 {
-    char *p, *q, *end;
+    char *p, *q, *end, *buf = vbuf;
     static enum {NORMAL, FF, FF00} state = NORMAL;
 
     p = buf; end = buf + len;
@@ -527,9 +543,13 @@ static void usage(void)
     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("  -noagent  disable use of Pageant\n");
+    printf("  -agent    enable use of Pageant\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");
     exit(1);
 }
 
@@ -550,7 +570,7 @@ int main(int argc, char **argv)
     int exitcode;
     int errors;
     int use_subsystem = 0;
-    void *ldisc, *logctx;
+    void *ldisc;
     long now;
 
     fdlist = NULL;
@@ -625,7 +645,7 @@ int main(int argc, char **argv)
 		errors = 1;
 	    }
 	} else if (*p) {
-	    if (!*cfg.host) {
+	    if (!cfg_launchable(&cfg)) {
 		char *q = p;
 
 		/*
@@ -699,7 +719,7 @@ int main(int argc, char **argv)
 		    {
 			Config cfg2;
 			do_defaults(host, &cfg2);
-			if (loaded_session || cfg2.host[0] == '\0') {
+			if (loaded_session || !cfg_launchable(&cfg2)) {
 			    /* No settings for this host; use defaults */
 			    /* (or session was already loaded with -load) */
 			    strncpy(cfg.host, host, sizeof(cfg.host) - 1);
@@ -753,7 +773,7 @@ int main(int argc, char **argv)
     if (errors)
 	return 1;
 
-    if (!*cfg.host) {
+    if (!cfg_launchable(&cfg)) {
 	usage();
     }
 
@@ -809,7 +829,7 @@ int main(int argc, char **argv)
 	cfg.host[p1] = '\0';
     }
 
-    if (!cfg.remote_cmd_ptr && !*cfg.remote_cmd)
+    if (!cfg.remote_cmd_ptr && !*cfg.remote_cmd && !*cfg.ssh_nc_host)
 	flags |= FLAG_INTERACTIVE;
 
     /*
@@ -897,7 +917,7 @@ int main(int argc, char **argv)
 	FD_SET_MAX(signalpipe[0], maxfd, rset);
 
 	if (connopen && !sending &&
-	    back->socket(backhandle) != NULL &&
+	    back->connected(backhandle) &&
 	    back->sendok(backhandle) &&
 	    back->sendbuffer(backhandle) < MAX_STDIN_BACKLOG) {
 	    /* If we're OK to send, then try to read from stdin. */
@@ -1012,7 +1032,7 @@ int main(int argc, char **argv)
 	    char buf[4096];
 	    int ret;
 
-	    if (connopen && back->socket(backhandle) != NULL) {
+	    if (connopen && back->connected(backhandle)) {
 		ret = read(0, buf, sizeof(buf));
 		if (ret < 0) {
 		    perror("stdin: read");
@@ -1037,7 +1057,7 @@ int main(int argc, char **argv)
 	    try_output(1);
 	}
 
-	if ((!connopen || back->socket(backhandle) == NULL) &&
+	if ((!connopen || !back->connected(backhandle)) &&
 	    bufchain_size(&stdout_data) == 0 &&
 	    bufchain_size(&stderr_data) == 0)
 	    break;		       /* we closed the connection */