#include <unistd.h>
#include <errno.h>
#include <ctype.h>
+#include <fcntl.h>
#include <signal.h>
#include <syslog.h>
+#include <getopt.h>
#include "udev.h"
#include "udev_rules.h"
-
-#ifdef USE_LOG
-void log_message (int priority, const char *format, ...)
+static int import_uevent_var(const char *devpath)
{
- va_list args;
-
- if (priority > udev_log_priority)
- return;
-
- va_start(args, format);
- vprintf(format, args);
- va_end(args);
- if (format[strlen(format)-1] != '\n')
- printf("\n");
+ char path[PATH_SIZE];
+ static char value[4096]; /* must stay, used with putenv */
+ ssize_t size;
+ int fd;
+ char *key;
+ char *next;
+ int rc = -1;
+
+ /* read uevent file */
+ strlcpy(path, sysfs_path, sizeof(path));
+ strlcat(path, devpath, sizeof(path));
+ strlcat(path, "/uevent", sizeof(path));
+ fd = open(path, O_RDONLY);
+ if (fd < 0)
+ goto out;
+ size = read(fd, value, sizeof(value));
+ close(fd);
+ if (size < 0)
+ goto out;
+ value[size] = '\0';
+
+ /* import keys into environment */
+ key = value;
+ while (key[0] != '\0') {
+ next = strchr(key, '\n');
+ if (next == NULL)
+ goto out;
+ next[0] = '\0';
+ info("import into environment: '%s'", key);
+ putenv(key);
+ key = &next[1];
+ }
+ rc = 0;
+out:
+ return rc;
}
-#endif
-int main(int argc, char *argv[], char *envp[])
+int udevtest(int argc, char *argv[], char *envp[])
{
- struct udev_rules rules = {};
- char *devpath = NULL;
+ int force = 0;
+ const char *action = "add";
+ const char *subsystem = NULL;
+ const char *devpath = NULL;
struct udevice *udev;
struct sysfs_device *dev;
- int i;
+ struct udev_rules rules = {};
int retval;
int rc = 0;
+ static const struct option options[] = {
+ { "action", 1, NULL, 'a' },
+ { "subsystem", 1, NULL, 's' },
+ { "force", 0, NULL, 'f' },
+ { "help", 0, NULL, 'h' },
+ {}
+ };
+
info("version %s", UDEV_VERSION);
udev_config_init();
- if (udev_log_priority < LOG_INFO)
- udev_log_priority = LOG_INFO;
+ if (udev_log_priority < LOG_INFO) {
+ char priority[32];
- for (i = 1 ; i < argc; i++) {
- char *arg = argv[i];
+ udev_log_priority = LOG_INFO;
+ sprintf(priority, "%i", udev_log_priority);
+ setenv("UDEV_LOG", priority, 1);
+ }
- if (strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
- printf("Usage: udevtest [--help] <devpath>\n");
- goto exit;
- } else
- devpath = arg;
+ while (1) {
+ int option;
+
+ option = getopt_long(argc, argv, "a:s:fh", options, NULL);
+ if (option == -1)
+ break;
+
+ dbg("option '%c'", option);
+ switch (option) {
+ case 'a':
+ action = optarg;
+ break;
+ case 's':
+ subsystem = optarg;
+ break;
+ case 'f':
+ force = 1;
+ break;
+ case 'h':
+ printf("Usage: udevadm test OPTIONS <devpath>\n"
+ " --action=<string> set action string\n"
+ " --subsystem=<string> set subsystem string\n"
+ " --force don't skip node/link creation\n"
+ " --help print this help text\n\n");
+ exit(0);
+ default:
+ exit(1);
+ }
}
+ devpath = argv[optind];
if (devpath == NULL) {
fprintf(stderr, "devpath parameter missing\n");
goto exit;
}
+ printf("This program is for debugging only, it does not run any program,\n"
+ "specified by a RUN key. It may show incorrect results, because\n"
+ "some values may be different, or not available at a simulation run.\n"
+ "\n");
+
sysfs_init();
udev_rules_init(&rules, 0);
goto exit;
}
- udev = udev_device_init();
+ udev = udev_device_init(NULL);
if (udev == NULL) {
fprintf(stderr, "error initializing device\n");
rc = 3;
goto exit;
}
+ if (subsystem != NULL)
+ strlcpy(dev->subsystem, subsystem, sizeof(dev->subsystem));
+
/* override built-in sysfs device */
udev->dev = dev;
- strcpy(udev->action, "add");
+ strlcpy(udev->action, action, sizeof(udev->action));
udev->devt = udev_device_get_devt(udev);
/* simulate node creation with test flag */
- udev->test_run = 1;
+ if (!force)
+ udev->test_run = 1;
setenv("DEVPATH", udev->dev->devpath, 1);
setenv("SUBSYSTEM", udev->dev->subsystem, 1);
- setenv("ACTION", "add", 1);
+ setenv("ACTION", udev->action, 1);
+ import_uevent_var(udev->dev->devpath);
info("looking at device '%s' from subsystem '%s'", udev->dev->devpath, udev->dev->subsystem);
retval = udev_device_event(&rules, udev);
info("run: '%s'", program);
}
}
+ udev_device_cleanup(udev);
exit:
udev_rules_cleanup(&rules);