Initial commit.

2 files changed, 33 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..32cd0f5
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+CFLAGS = -O2 -march=native -std=c99
+termvader:
diff --git a/termvader.c b/termvader.c
new file mode 100644
index 0000000..474fe39
--- /dev/null
+++ b/termvader.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+
+int main(int argc, char *argv[])
+{
+	if (argc != 3) {
+		fprintf(stderr, "Usage: %s /dev/tty[0-9]+ COMMANDS ...\n", argv[0]);
+		fprintf(stderr, "You can obtain the tty device from a particular terminal via the 'tty' command.\n");
+		fprintf(stderr, "Please note, you may have to run this program as root.\n");
+		return 1;
+	}
+	int ttyfd;
+	if ((ttyfd = open(argv[1], O_WRONLY)) == -1) {
+		perror("open");
+		return errno;
+	}
+	for (char *c = argv[2]; *c; ++c) {
+		if (ioctl(ttyfd, TIOCSTI, c) == -1) {
+			perror("ioctl");
+			return errno;
+		}
+	}
+	if (ioctl(ttyfd, TIOCSTI, "\n") == -1) {
+		perror("ioctl");
+		return errno;
+	}
+	return 0;
+}