Import sources from 2011-03-30 iso image

1 files changed, 110 insertions, 0 deletions

diff --git a/sys/src/cmd/dial/expect.c b/sys/src/cmd/dial/expect.c
new file mode 100755
index 000000000..4ab6eceb5
--- /dev/null
+++ b/sys/src/cmd/dial/expect.c
@@ -0,0 +1,110 @@
+#include <u.h>
+#include <libc.h>
+
+void
+usage(void)
+{
+	fprint(2, "usage: %s [-q] [-t secs] goodstring [badstring ...]\n", argv0);
+	exits("usage");
+}
+
+void
+catch(void*, char *s)
+{
+	exits(s);
+}
+
+int
+writewithoutcr(int fd, char *p, int i)
+{
+	char *q, *e;
+
+	/* dump cr's */
+	for(e = p+i; p < e; ){
+		q = memchr(p, '\r', e-p);
+		if(q == nil)
+			break;
+		if(q > p)
+			if(write(fd, p, q-p) < 0)
+				return -1;
+		p = q+1;
+	}
+	if(p < e)
+		if(write(fd, p, e-p) < 0)
+			return -1;
+	return i;
+}
+
+void
+main(int argc, char **argv)
+{
+	int timeout = 5*60;
+	int quiet = 0;
+	int ignorecase = 0;
+	int fd, i, m, n, bsize;
+	char *good;
+	char *buf;
+	int sofar;
+
+	ARGBEGIN {
+	case 'i':
+		ignorecase = 1;
+		break;
+	case 't':
+		timeout = atoi(EARGF(usage()));
+		break;
+	case 'q':
+		quiet = 1;
+		break;
+	} ARGEND;
+
+	if(argc < 1)
+		usage();
+
+	good = argv[0];
+	n = strlen(good);
+
+	for(i = 1; i < argc; i++){
+		m = strlen(argv[i]);
+		if(m > n)
+			n = m;
+	}
+
+	fd = open("/dev/cons", ORDWR);
+	if(fd < 0)
+		sysfatal("opening /dev/cons: %r");
+
+	bsize = n+4096;
+	buf = malloc(bsize+1);
+
+	sofar = 0;
+	alarm(timeout*1000);
+	for(;;){
+		if(sofar > n){
+			memmove(buf, &buf[sofar-n], n);
+			sofar = n;
+		}
+		i = read(0, buf+sofar, bsize);
+		if(i <= 0)
+			exits("EOF");
+		if(!quiet)
+			writewithoutcr(fd, buf+sofar, i);
+		sofar += i;
+		buf[sofar] = 0;
+		if(ignorecase){
+			if(cistrstr(buf, good))
+				break;
+			for(i = 1; i < argc; i++)
+				if(cistrstr(buf, argv[i]))
+					exits(argv[i]);
+		} else {
+			if(strstr(buf, good))
+				break;
+			for(i = 1; i < argc; i++)
+				if(strstr(buf, argv[i]))
+					exits(argv[i]);
+		}
+	}
+
+	exits(0);
+}