Import sources from 2011-03-30 iso image

2 files changed, 79 insertions, 0 deletions

diff --git a/sys/src/ape/lib/v/plan9/getpass.c b/sys/src/ape/lib/v/plan9/getpass.c
new file mode 100755
index 000000000..f8f6a8e89
--- /dev/null
+++ b/sys/src/ape/lib/v/plan9/getpass.c
@@ -0,0 +1,42 @@
+#define _POSIX_SOURCE
+#define _RESEARCH_SOURCE
+#include <stdio.h>
+#include <signal.h>
+#include <libv.h>
+
+char *
+getpass(char *prompt)
+{
+	int c;
+	char *p;
+	FILE *fi;
+	static char pbuf[9];
+	void (*sig)(int);
+
+	if ((fi = fopen("/dev/cons", "r")) == NULL)
+		fi = stdin;
+	else
+		setbuf(fi, NULL);
+	sig = signal(SIGINT, SIG_IGN);
+	tty_echooff(fileno(fi));
+	fprintf(stderr, "%s", prompt);
+	fflush(stderr);
+
+	for (p = pbuf; (c = getc(fi)) != '\n' && c != EOF; )
+		if (c == ('u' & 037))
+			p = pbuf;
+		else if (c == '\b') {
+			if (p > pbuf)
+				p--;
+		} else if (p < &pbuf[8])
+			*p++ = c;
+	*p = '\0';
+
+	fprintf(stderr, "\n");
+	fflush(stderr);
+	tty_echoon(fileno(fi));
+	signal(SIGINT, sig);
+	if (fi != stdin)
+		fclose(fi);
+	return(pbuf);
+}
diff --git a/sys/src/ape/lib/v/plan9/tty.c b/sys/src/ape/lib/v/plan9/tty.c
new file mode 100755
index 000000000..dae26d48f
--- /dev/null
+++ b/sys/src/ape/lib/v/plan9/tty.c
@@ -0,0 +1,37 @@
+/*
+ * turn raw (no echo, etc.) on and off.
+ * ptyfs is gone, so don't even try tcsetattr, etc.
+ */
+#define _POSIX_SOURCE
+#define _RESEARCH_SOURCE
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <libv.h>
+
+static int ctlfd = -1;
+
+/* fd is ignored */
+
+tty_echooff(int fd)
+{
+	if(ctlfd >= 0)
+		return 0;
+	ctlfd = open("/dev/consctl", O_WRONLY);
+	if(ctlfd < 0)
+		return -1;
+	write(ctlfd, "rawon", 5);
+	return 0;
+}
+
+tty_echoon(int fd)
+{
+	if(ctlfd >= 0){
+		write(ctlfd, "rawoff", 6);
+		close(ctlfd);
+		ctlfd = -1;
+		return 0;
+	}
+	return -1;
+}