1 files changed, 113 insertions, 0 deletions
diff --git a/sys-utils/ctrlaltdel.c b/sys-utils/ctrlaltdel.c
new file mode 100644
index 0000000..303d2dc
--- /dev/null
+++ b/sys-utils/ctrlaltdel.c
@@ -0,0 +1,113 @@
+/*
+ * ctrlaltdel.c - Set the function of the Ctrl-Alt-Del combination
+ * Created 4-Jul-92 by Peter Orbaek <poe@daimi.aau.dk>
+ * 1999-02-22 Arkadiusz Miśkiewicz <misiek@pld.ORG.PL>
+ * - added Native Language Support
+ */
+
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/reboot.h>
+#include "nls.h"
+#include "c.h"
+#include "closestream.h"
+#include "pathnames.h"
+#include "path.h"
+
+#define LINUX_REBOOT_CMD_CAD_ON 0x89ABCDEF
+#define LINUX_REBOOT_CMD_CAD_OFF 0x00000000
+
+static void __attribute__((__noreturn__)) usage(void)
+{
+	FILE *out = stdout;
+	fputs(USAGE_HEADER, out);
+	fprintf(out, _(" %s hard|soft\n"), program_invocation_short_name);
+
+	fputs(USAGE_SEPARATOR, out);
+	fprintf(out, _("Set the function of the Ctrl-Alt-Del combination.\n"));
+
+	fputs(USAGE_OPTIONS, out);
+	printf(USAGE_HELP_OPTIONS(16));
+	printf(USAGE_MAN_TAIL("ctrlaltdel(8)"));
+	exit(EXIT_SUCCESS);
+}
+
+static int get_cad(void)
+{
+	uint64_t val;
+
+	if (ul_path_read_u64(NULL, &val, _PATH_PROC_CTRL_ALT_DEL) != 0)
+		err(EXIT_FAILURE, _("cannot read %s"), _PATH_PROC_CTRL_ALT_DEL);
+
+	switch (val) {
+	case 0:
+		fputs("soft\n", stdout);
+		break;
+	case 1:
+		fputs("hard\n", stdout);
+		break;
+	default:
+		printf("%s hard\n", _("implicit"));
+		warnx(_("unexpected value in %s: %ju"), _PATH_PROC_CTRL_ALT_DEL, val);
+		return EXIT_FAILURE;
+	}
+	return EXIT_SUCCESS;
+}
+
+static int set_cad(const char *arg)
+{
+	unsigned int cmd;
+
+	if (geteuid()) {
+		warnx(_("You must be root to set the Ctrl-Alt-Del behavior"));
+		return EXIT_FAILURE;
+	}
+	if (!strcmp("hard", arg))
+		cmd = LINUX_REBOOT_CMD_CAD_ON;
+	else if (!strcmp("soft", arg))
+		cmd = LINUX_REBOOT_CMD_CAD_OFF;
+	else {
+		warnx(_("unknown argument: %s"), arg);
+		return EXIT_FAILURE;
+	}
+	if (reboot(cmd) < 0) {
+		warn("reboot");
+		return EXIT_FAILURE;
+	}
+	return EXIT_SUCCESS;
+}
+
+int main(int argc, char **argv)
+{
+	int ch, ret;
+	static const struct option longopts[] = {
+		{"version", no_argument, NULL, 'V'},
+		{"help", no_argument, NULL, 'h'},
+		{NULL, 0, NULL, 0}
+	};
+
+	setlocale(LC_ALL, "");
+	bindtextdomain(PACKAGE, LOCALEDIR);
+	textdomain(PACKAGE);
+	close_stdout_atexit();
+
+	while ((ch = getopt_long(argc, argv, "Vh", longopts, NULL)) != -1)
+		switch (ch) {
+		case 'V':
+			print_version(EXIT_SUCCESS);
+		case 'h':
+			usage();
+		default:
+			errtryhelp(EXIT_FAILURE);
+		}
+
+	if (argc < 2)
+		ret = get_cad();
+	else
+		ret = set_cad(argv[1]);
+	return ret;
+}