From b750101eb236130cf056c675997decbac904cc49 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:35:18 +0200 Subject: Adding upstream version 252.22. Signed-off-by: Daniel Baumann --- src/ac-power/ac-power.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 src/ac-power/ac-power.c (limited to 'src/ac-power/ac-power.c') diff --git a/src/ac-power/ac-power.c b/src/ac-power/ac-power.c new file mode 100644 index 0000000..12379df --- /dev/null +++ b/src/ac-power/ac-power.c @@ -0,0 +1,90 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include + +#include "main-func.h" +#include "udev-util.h" + +static bool arg_verbose = false; + +static void help(void) { + printf("%s\n\n" + "Report whether we are connected to an external power source.\n\n" + " -h --help Show this help\n" + " --version Show package version\n" + " -v --verbose Show state as text\n", + program_invocation_short_name); +} + +static int parse_argv(int argc, char *argv[]) { + + enum { + ARG_VERSION = 0x100, + }; + + static const struct option options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + { "verbose", no_argument, NULL, 'v' }, + {} + }; + + int c; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "hv", options, NULL)) >= 0) + + switch (c) { + + case 'h': + help(); + return 0; + + case ARG_VERSION: + return version(); + + case 'v': + arg_verbose = true; + break; + + case '?': + return -EINVAL; + + default: + assert_not_reached(); + } + + if (optind < argc) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "%s takes no arguments.", + program_invocation_short_name); + + return 1; +} + +static int run(int argc, char *argv[]) { + int r; + + /* This is mostly intended to be used for scripts which want + * to detect whether AC power is plugged in or not. */ + + log_parse_environment(); + log_open(); + + r = parse_argv(argc, argv); + if (r <= 0) + return r; + + r = on_ac_power(); + if (r < 0) + return log_error_errno(r, "Failed to read AC status: %m"); + + if (arg_verbose) + puts(yes_no(r)); + + return r == 0; +} + +DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run); -- cgit v1.2.3