Import sources from 2011-03-30 iso image

1 files changed, 90 insertions, 0 deletions

diff --git a/sys/src/cmd/dial/pass.c b/sys/src/cmd/dial/pass.c
new file mode 100755
index 000000000..b5b740bf8
--- /dev/null
+++ b/sys/src/cmd/dial/pass.c
@@ -0,0 +1,90 @@
+#include <u.h>
+#include <libc.h>
+
+int alarmed;
+int done;
+
+void
+usage(void)
+{
+	fprint(2, "usage: %s [-q]\n", argv0);
+	exits("usage");
+}
+
+void
+ding(void*, char *s)
+{
+	if(strstr(s, "alarm")){
+		alarmed = 1;
+		noted(NCONT);
+	} else
+		noted(NDFLT);
+}
+
+
+void
+main(int argc, char **argv)
+{
+	int fd, cfd;
+	int i;
+	char buf[1];
+	int quiet = 0;
+
+	ARGBEGIN {
+	case 'q':
+		quiet = 1;
+		break;
+	} ARGEND;
+
+	notify(ding);
+
+	fd = open("/dev/cons", ORDWR);
+	if(fd < 0)
+		sysfatal("opening /dev/cons: %r");
+	cfd = open("/dev/consctl", OWRITE);
+	if(cfd >= 0)
+		fprint(cfd, "rawon");
+
+	switch(rfork(RFPROC|RFFDG|RFMEM)){
+	case -1:
+		sysfatal("forking: %r");
+	default:
+		// read until we're done writing or
+		// we get an end of line
+		while(!done){
+			alarmed = 0;
+			alarm(250);
+			i = read(0, buf, 1);
+			alarm(0);
+
+			if(i == 0)
+				break;
+			if(i < 0){
+				if(alarmed)
+					continue;
+				else
+					break;
+			}
+			if(!quiet && write(fd, buf, 1) < 1)
+				break;
+			if(buf[0] == '\n' || buf[0] == '\r')
+				break;
+		}	
+		break;
+	case 0:
+		// pass one character at a time till end of line
+		for(;;){
+			if(read(fd, buf, 1) <= 0)
+				break;
+			if(write(1, buf, 1) < 0)
+				break;
+			if(buf[0] == '\n' || buf[0] == '\r')
+				break;
+		}
+
+		// tell reader to give up after next char
+		done = 1;
+		break;
+	}
+	exits(0);
+}