diff options
Diffstat (limited to 'src')
| l--------- | src/machine-id-commit/Makefile | 1 | ||||
| -rw-r--r-- | src/machine-id-commit/machine-id-commit.c | 105 |
2 files changed, 106 insertions, 0 deletions
diff --git a/src/machine-id-commit/Makefile b/src/machine-id-commit/Makefile new file mode 120000 index 0000000000..d0b0e8e008 --- /dev/null +++ b/src/machine-id-commit/Makefile @@ -0,0 +1 @@ +../Makefile
\ No newline at end of file diff --git a/src/machine-id-commit/machine-id-commit.c b/src/machine-id-commit/machine-id-commit.c new file mode 100644 index 0000000000..c7e4de8889 --- /dev/null +++ b/src/machine-id-commit/machine-id-commit.c @@ -0,0 +1,105 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2014 Didier Roche + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> +#include <getopt.h> +#include <errno.h> + +#include "machine-id-setup.h" +#include "log.h" +#include "build.h" + +static const char *arg_root = ""; + +static void help(void) { + printf("%s [OPTIONS...]\n\n" + "Commit a transient /etc/machine-id on disk if writable.\n\n" + " -h --help Show this help\n" + " --version Show package version\n" + " --root=ROOT Filesystem root\n", + program_invocation_short_name); +} + +static int parse_argv(int argc, char *argv[]) { + + enum { + ARG_VERSION = 0x100, + ARG_ROOT, + }; + + static const struct option options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + { "root", required_argument, NULL, ARG_ROOT }, + {} + }; + + int c; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "hqcv", options, NULL)) >= 0) + switch (c) { + + case 'h': + help(); + return 0; + + case ARG_VERSION: + puts(PACKAGE_STRING); + puts(SYSTEMD_FEATURES); + return 0; + + case ARG_ROOT: + arg_root = optarg; + break; + + case '?': + return -EINVAL; + + default: + assert_not_reached("Unhandled option"); + } + + if (optind < argc) { + log_error("Extraneous arguments"); + return -EINVAL; + } + + return 1; +} + +int main(int argc, char *argv[]) { + int r; + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + r = parse_argv(argc, argv); + if (r <= 0) + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; + + return machine_id_commit(arg_root) < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} |