From 43a44bfc6da8f4666c5dd6bc03c89713e6c4bd46 Mon Sep 17 00:00:00 2001 From: Sami Kerola Date: Sat, 10 Jan 2015 20:07:08 +0000 Subject: rtcwake: add --list-modes Commit ece44f19f423408f576f348fed2845c876d72c6e missed freeze mode, which to a simple patch adding the missing argument but Karel pointed out it would be better to make the rtcwake to tell what arguments are supported so that possible changes end up to be automatically correct in bash completion. Proposed-by: Karel Zak Signed-off-by: Sami Kerola --- sys-utils/rtcwake.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'sys-utils/rtcwake.c') diff --git a/sys-utils/rtcwake.c b/sys-utils/rtcwake.c index 4b9483cc5..1044c86db 100644 --- a/sys-utils/rtcwake.c +++ b/sys-utils/rtcwake.c @@ -117,6 +117,7 @@ static void __attribute__((__noreturn__)) usage(FILE *out) fputs(_(" -d, --device select rtc device (rtc0|rtc1|...)\n"), out); fputs(_(" -n, --dry-run does everything, but suspend\n"), out); fputs(_(" -l, --local RTC uses local timezone\n"), out); + fputs(_(" --list-modes list available modes\n"), out); fputs(_(" -m, --mode standby|mem|... sleep mode\n"), out); fputs(_(" -s, --seconds seconds to sleep\n"), out); fputs(_(" -t, --time time to wake\n"), out); @@ -395,6 +396,15 @@ static int open_dev_rtc(const char *devname) return fd; } +static void list_modes(void) +{ + int i = ARRAY_SIZE(mode_str); + + while (i--) + printf("%s%s", mode_str[i], i == 0 ? "" : " "); + putchar('\n'); +} + int main(int argc, char **argv) { struct rtcwake_control ctl = { @@ -413,7 +423,8 @@ int main(int argc, char **argv) time_t alarm = 0; enum { - OPT_DATE = CHAR_MAX + 1 + OPT_DATE = CHAR_MAX + 1, + OPT_LIST }; static const struct option long_options[] = { @@ -430,6 +441,7 @@ int main(int argc, char **argv) {"seconds", required_argument, 0, 's'}, {"time", required_argument, 0, 't'}, {"date", required_argument, 0, OPT_DATE}, + {"list-modes", no_argument, 0, OPT_LIST}, {0, 0, 0, 0 } }; @@ -458,6 +470,10 @@ int main(int argc, char **argv) ctl.clock_mode = CM_LOCAL; break; + case OPT_LIST: + list_modes(); + return EXIT_SUCCESS; + case 'm': if ((suspend = get_mode(optarg)) < 0) errx(EXIT_FAILURE, _("unrecognized suspend state '%s'"), optarg); -- cgit v1.2.3-55-g7522