diff options
Diffstat (limited to 'src')
| l--------- | src/rfkill/Makefile | 1 | ||||
| -rw-r--r-- | src/rfkill/rfkill.c | 146 |
2 files changed, 147 insertions, 0 deletions
diff --git a/src/rfkill/Makefile b/src/rfkill/Makefile new file mode 120000 index 0000000000..d0b0e8e008 --- /dev/null +++ b/src/rfkill/Makefile @@ -0,0 +1 @@ +../Makefile
\ No newline at end of file diff --git a/src/rfkill/rfkill.c b/src/rfkill/rfkill.c new file mode 100644 index 0000000000..91536523b0 --- /dev/null +++ b/src/rfkill/rfkill.c @@ -0,0 +1,146 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2013 Lennart Poettering + + 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 "util.h" +#include "mkdir.h" +#include "fileio.h" +#include "libudev.h" +#include "udev-util.h" + +int main(int argc, char *argv[]) { + _cleanup_udev_unref_ struct udev *udev = NULL; + _cleanup_udev_device_unref_ struct udev_device *device = NULL; + _cleanup_free_ char *saved = NULL, *ss = NULL, *escaped_name = NULL; + const char *sysname, *name; + int r; + + if (argc != 3) { + log_error("This program requires two arguments."); + return EXIT_FAILURE; + } + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + r = mkdir_p("/var/lib/systemd/rfkill", 0755); + if (r < 0) { + log_error("Failed to create rfkill directory: %s", strerror(-r)); + return EXIT_FAILURE; + } + + udev = udev_new(); + if (!udev) { + log_oom(); + return EXIT_FAILURE; + } + + sysname = strchr(argv[2], ':'); + if (!sysname) { + log_error("Requires pair of subsystem and sysname for specifying rfkill device."); + return EXIT_FAILURE; + } + + ss = strndup(argv[2], sysname - argv[2]); + if (!ss) { + log_oom(); + return EXIT_FAILURE; + } + + sysname++; + + if (!streq(ss, "rfkill")) { + log_error("Not a rfkill device: '%s:%s'", ss, sysname); + return EXIT_FAILURE; + } + + errno = 0; + device = udev_device_new_from_subsystem_sysname(udev, ss, sysname); + if (!device) { + if (errno != 0) + log_error("Failed to get rfkill device '%s:%s': %m", ss, sysname); + else + log_oom(); + + return EXIT_FAILURE; + } + + name = udev_device_get_sysattr_value(device, "name"); + if (!name) { + log_error("rfkill device has no name?"); + return EXIT_FAILURE; + } + + escaped_name = cescape(name); + if (!escaped_name) { + log_oom(); + return EXIT_FAILURE; + } + + saved = strjoin("/var/lib/systemd/rfkill/", escaped_name, NULL); + if (!saved) { + log_oom(); + return EXIT_FAILURE; + } + + if (streq(argv[1], "load")) { + _cleanup_free_ char *value = NULL; + + r = read_one_line_file(saved, &value); + if (r < 0) { + + if (r == -ENOENT) + return EXIT_SUCCESS; + + log_error("Failed to read %s: %s", saved, strerror(-r)); + return EXIT_FAILURE; + } + + r = udev_device_set_sysattr_value(device, "soft", value); + if (r < 0) { + log_error("Failed to write system attribute: %s", strerror(-r)); + return EXIT_FAILURE; + } + + } else if (streq(argv[1], "save")) { + const char *value; + + value = udev_device_get_sysattr_value(device, "soft"); + if (!value) { + log_error("Failed to read system attribute: %s", strerror(-r)); + return EXIT_FAILURE; + } + + r = write_string_file(saved, value); + if (r < 0) { + log_error("Failed to write %s: %s", saved, strerror(-r)); + return EXIT_FAILURE; + } + + } else { + log_error("Unknown verb %s.", argv[1]); + return EXIT_FAILURE; + } + + return EXIT_SUCCESS; +} |