move imported udev into place

1 files changed, 232 insertions, 0 deletions

diff --git a/src/udev/udevadm-trigger.c b/src/udev/udevadm-trigger.c
new file mode 100644
index 0000000000..3cce23dfb2
--- /dev/null
+++ b/src/udev/udevadm-trigger.c
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2008-2009 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <errno.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <syslog.h>
+#include <fnmatch.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include "udev.h"
+
+static int verbose;
+static int dry_run;
+
+static void exec_list(struct udev_enumerate *udev_enumerate, const char *action)
+{
+        struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
+        struct udev_list_entry *entry;
+
+        udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(udev_enumerate)) {
+                char filename[UTIL_PATH_SIZE];
+                int fd;
+
+                if (verbose)
+                        printf("%s\n", udev_list_entry_get_name(entry));
+                if (dry_run)
+                        continue;
+                util_strscpyl(filename, sizeof(filename), udev_list_entry_get_name(entry), "/uevent", NULL);
+                fd = open(filename, O_WRONLY);
+                if (fd < 0) {
+                        dbg(udev, "error on opening %s: %m\n", filename);
+                        continue;
+                }
+                if (write(fd, action, strlen(action)) < 0)
+                        info(udev, "error writing '%s' to '%s': %m\n", action, filename);
+                close(fd);
+        }
+}
+
+static const char *keyval(const char *str, const char **val, char *buf, size_t size)
+{
+        char *pos;
+
+        util_strscpy(buf, size,str);
+        pos = strchr(buf, '=');
+        if (pos != NULL) {
+                pos[0] = 0;
+                pos++;
+        }
+        *val = pos;
+        return buf;
+}
+
+static int adm_trigger(struct udev *udev, int argc, char *argv[])
+{
+        static const struct option options[] = {
+                { "verbose", no_argument, NULL, 'v' },
+                { "dry-run", no_argument, NULL, 'n' },
+                { "type", required_argument, NULL, 't' },
+                { "action", required_argument, NULL, 'c' },
+                { "subsystem-match", required_argument, NULL, 's' },
+                { "subsystem-nomatch", required_argument, NULL, 'S' },
+                { "attr-match", required_argument, NULL, 'a' },
+                { "attr-nomatch", required_argument, NULL, 'A' },
+                { "property-match", required_argument, NULL, 'p' },
+                { "tag-match", required_argument, NULL, 'g' },
+                { "sysname-match", required_argument, NULL, 'y' },
+                { "parent-match", required_argument, NULL, 'b' },
+                { "help", no_argument, NULL, 'h' },
+                {}
+        };
+        enum {
+                TYPE_DEVICES,
+                TYPE_SUBSYSTEMS,
+        } device_type = TYPE_DEVICES;
+        const char *action = "change";
+        struct udev_enumerate *udev_enumerate;
+        int rc = 0;
+
+        dbg(udev, "version %s\n", VERSION);
+        udev_enumerate = udev_enumerate_new(udev);
+        if (udev_enumerate == NULL) {
+                rc = 1;
+                goto exit;
+        }
+
+        for (;;) {
+                int option;
+                const char *key;
+                const char *val;
+                char buf[UTIL_PATH_SIZE];
+
+                option = getopt_long(argc, argv, "vng:o:t:hc:p:s:S:a:A:y:b:", options, NULL);
+                if (option == -1)
+                        break;
+
+                switch (option) {
+                case 'v':
+                        verbose = 1;
+                        break;
+                case 'n':
+                        dry_run = 1;
+                        break;
+                case 't':
+                        if (strcmp(optarg, "devices") == 0) {
+                                device_type = TYPE_DEVICES;
+                        } else if (strcmp(optarg, "subsystems") == 0) {
+                                device_type = TYPE_SUBSYSTEMS;
+                        } else {
+                                err(udev, "unknown type --type=%s\n", optarg);
+                                rc = 2;
+                                goto exit;
+                        }
+                        break;
+                case 'c':
+                        action = optarg;
+                        break;
+                case 's':
+                        udev_enumerate_add_match_subsystem(udev_enumerate, optarg);
+                        break;
+                case 'S':
+                        udev_enumerate_add_nomatch_subsystem(udev_enumerate, optarg);
+                        break;
+                case 'a':
+                        key = keyval(optarg, &val, buf, sizeof(buf));
+                        udev_enumerate_add_match_sysattr(udev_enumerate, key, val);
+                        break;
+                case 'A':
+                        key = keyval(optarg, &val, buf, sizeof(buf));
+                        udev_enumerate_add_nomatch_sysattr(udev_enumerate, key, val);
+                        break;
+                case 'p':
+                        key = keyval(optarg, &val, buf, sizeof(buf));
+                        udev_enumerate_add_match_property(udev_enumerate, key, val);
+                        break;
+                case 'g':
+                        udev_enumerate_add_match_tag(udev_enumerate, optarg);
+                        break;
+                case 'y':
+                        udev_enumerate_add_match_sysname(udev_enumerate, optarg);
+                        break;
+                case 'b': {
+                        char path[UTIL_PATH_SIZE];
+                        struct udev_device *dev;
+
+                        /* add sys dir if needed */
+                        if (strncmp(optarg, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0)
+                                util_strscpyl(path, sizeof(path), udev_get_sys_path(udev), optarg, NULL);
+                        else
+                                util_strscpy(path, sizeof(path), optarg);
+                        util_remove_trailing_chars(path, '/');
+                        dev = udev_device_new_from_syspath(udev, path);
+                        if (dev == NULL) {
+                                err(udev, "unable to open the device '%s'\n", optarg);
+                                rc = 2;
+                                goto exit;
+                        }
+                        udev_enumerate_add_match_parent(udev_enumerate, dev);
+                        /* drop reference immediately, enumerate pins the device as long as needed */
+                        udev_device_unref(dev);
+                        break;
+                }
+                case 'h':
+                        printf("Usage: udevadm trigger OPTIONS\n"
+                               "  --verbose                       print the list of devices while running\n"
+                               "  --dry-run                       do not actually trigger the events\n"
+                               "  --type=                         type of events to trigger\n"
+                               "      devices                       sys devices (default)\n"
+                               "      subsystems                    sys subsystems and drivers\n"
+                               "  --action=<action>               event action value, default is \"change\"\n"
+                               "  --subsystem-match=<subsystem>   trigger devices from a matching subsystem\n"
+                               "  --subsystem-nomatch=<subsystem> exclude devices from a matching subsystem\n"
+                               "  --attr-match=<file[=<value>]>   trigger devices with a matching attribute\n"
+                               "  --attr-nomatch=<file[=<value>]> exclude devices with a matching attribute\n"
+                               "  --property-match=<key>=<value>  trigger devices with a matching property\n"
+                               "  --tag-match=<key>=<value>       trigger devices with a matching property\n"
+                               "  --sysname-match=<name>          trigger devices with a matching name\n"
+                               "  --parent-match=<name>           trigger devices with that parent device\n"
+                               "  --help\n\n");
+                        goto exit;
+                default:
+                        rc = 1;
+                        goto exit;
+                }
+        }
+
+        switch (device_type) {
+        case TYPE_SUBSYSTEMS:
+                udev_enumerate_scan_subsystems(udev_enumerate);
+                exec_list(udev_enumerate, action);
+                goto exit;
+        case TYPE_DEVICES:
+                udev_enumerate_scan_devices(udev_enumerate);
+                exec_list(udev_enumerate, action);
+                goto exit;
+        default:
+                goto exit;
+        }
+exit:
+        udev_enumerate_unref(udev_enumerate);
+        return rc;
+}
+
+const struct udevadm_cmd udevadm_trigger = {
+        .name = "trigger",
+        .cmd = adm_trigger,
+        .help = "request events from the kernel",
+};