X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/putty/blobdiff_plain/885f465fb25defc371ade539453b0fee29323aa5..f43e4b678f0b7aa847a3eeb3fab536058710d69f:/unix/uxplink.c

diff --git a/unix/uxplink.c b/unix/uxplink.c
index 0c34a296..8027b6f8 100644
--- a/unix/uxplink.c
+++ b/unix/uxplink.c
@@ -107,8 +107,8 @@ 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, "UserName"))
+ 	return get_username();
     if (!strcmp(name, "SerialLine"))
 	return dupstr("/dev/ttyS0");
     return NULL;
@@ -513,7 +513,8 @@ int signalpipe[2];
 
 void sigwinch(int signum)
 {
-    write(signalpipe[1], "x", 1);
+    if (write(signalpipe[1], "x", 1) <= 0)
+	/* not much we can do about it */;
 }
 
 /*
@@ -537,7 +538,7 @@ static void usage(void)
     printf("  -pgpfp    print PGP key fingerprints and exit\n");
     printf("  -v        show verbose messages\n");
     printf("  -load sessname  Load settings from saved session\n");
-    printf("  -ssh -telnet -rlogin -raw\n");
+    printf("  -ssh -telnet -rlogin -raw -serial\n");
     printf("            force use of a particular protocol\n");
     printf("  -P port   connect to specified port\n");
     printf("  -l user   connect with specified username\n");
@@ -564,6 +565,8 @@ static void usage(void)
     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);
 }
 
@@ -1030,7 +1033,9 @@ int main(int argc, char **argv)
 	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 (read(signalpipe[0], c, 1) <= 0)
+		/* ignore error */;
+	    /* ignore its value; it'll be `x' */
 	    if (ioctl(0, TIOCGWINSZ, (void *)&size) >= 0)
 		back->size(backhandle, size.ws_col, size.ws_row);
 	}