#include <unistd.h>
#include <errno.h>
#include <ctype.h>
+#include <fcntl.h>
#include <signal.h>
#include <syslog.h>
#include <getopt.h>
va_start(args, format);
vprintf(format, args);
va_end(args);
- if (format[strlen(format)-1] != '\n')
- printf("\n");
+ printf("\n");
}
#endif
+static int import_uevent_var(const char *devpath)
+{
+ 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;
+}
+
int main(int argc, char *argv[], char *envp[])
{
int force = 0;
- char *action = "add";
- struct udev_rules rules = {};
- char *devpath = NULL;
+ const char *action = "add";
+ const char *subsystem = NULL;
+ const char *devpath = NULL;
struct udevice *udev;
struct sysfs_device *dev;
+ 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' },
{}
while (1) {
int option;
- option = getopt_long(argc, argv, "a:fh", options, NULL);
+ option = getopt_long(argc, argv, "a:s:fh", options, NULL);
if (option == -1)
break;
case 'a':
action = optarg;
break;
+ case 's':
+ subsystem = optarg;
+ break;
case 'f':
force = 1;
break;
case 'h':
- printf("Usage: udevtest [--action=<string>] [--force] [--help] <devpath>\n"
- " --action=<string> set action string\n"
- " --force don't skip node/link creation\n"
- " --help print this help text\n\n");
+ printf("Usage: udevtest 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);
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;
}
+ if (subsystem != NULL)
+ strlcpy(dev->subsystem, subsystem, sizeof(dev->subsystem));
+
/* override built-in sysfs device */
udev->dev = dev;
- strcpy(udev->action, action);
+ strlcpy(udev->action, action, sizeof(udev->action));
udev->devt = udev_device_get_devt(udev);
/* simulate node creation with test flag */
setenv("DEVPATH", udev->dev->devpath, 1);
setenv("SUBSYSTEM", udev->dev->subsystem, 1);
- setenv("ACTION", "add", 1);
-
- printf("This program is for debugging only, it does not run any program,\n"
- "specified by a RUN key. It may show incorrect results, if rules\n"
- "match against subsystem specfic kernel event variables.\n"
- "\n");
+ 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);