Simplify and cahgne license1.1

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 48 insertions, 0 deletions

diff --git a/sleeping-getty.c b/sleeping-getty.c
new file mode 100644
index 0000000..25e95a9
--- /dev/null
+++ b/sleeping-getty.c
@@ -0,0 +1,48 @@
+/* See LICENSE file for copyright and license details. */
+#include <linux/vt.h>
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stropts.h>
+#include <unistd.h>
+
+static char *argv0;
+
+static void
+usage(void)
+{
+	fprintf(stderr, "usage: %s vtno getty-command [arguments] ...\n", argv0);
+	exit(1);
+}
+
+int
+main(int argc, char *argv[])
+{
+	struct vt_stat state;
+	long int tmp;
+	int tty;
+	char *end;
+
+	argv0 = argv[0];
+	if (argc < 3)
+		usage();
+
+	if (!isdigit(argv[1][0]))
+		usage();
+	errno = 0;
+	tmp = strtol(argv[1], &end, 10);
+	if (errno || *end || tmp < 0 || tmp > INT_MAX)
+		usage();
+	tty = (int)tmp;
+
+	if (!ioctl(STDIN_FILENO, (long)VT_GETSTATE, &state))
+		if (state.v_active != tty)
+			ioctl(STDIN_FILENO, (long)VT_WAITACTIVE, tty);
+
+	execvp(argv[2], &argv[2]);
+	fprintf(stderr, "%s: execvp %s: %s\n", argv0, argv[2], strerror(errno));
+	return 1;
+}