From 378c18e5f024ac5a8aef4cb40d7c9aa9633d144c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 16:30:35 +0200 Subject: Adding upstream version 2.38.1. Signed-off-by: Daniel Baumann --- sys-utils/ctrlaltdel.c | 113 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 sys-utils/ctrlaltdel.c (limited to 'sys-utils/ctrlaltdel.c') 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 + * 1999-02-22 Arkadiusz Miƛkiewicz + * - added Native Language Support + */ + +#include +#include +#include +#include +#include +#include +#include +#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; +} -- cgit v1.2.3