X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevtest.c;h=d5e90b02c650c05beab2499eedb90fc6853f9263;hp=9d73996bcf19c95fa946caddf9de4eaaed73a43c;hb=661a0bea80d129d5df708e36dbaed745c9d8392e;hpb=1c73ceeb9448c4398ea143faa4e1ccdc56d64238

diff --git a/udevtest.c b/udevtest.c
index 9d73996bc..d5e90b02c 100644
--- a/udevtest.c
+++ b/udevtest.c
@@ -24,6 +24,7 @@
 #include <unistd.h>
 #include <errno.h>
 #include <ctype.h>
+#include <fcntl.h>
 #include <signal.h>
 #include <syslog.h>
 #include <getopt.h>
@@ -31,42 +32,66 @@
 #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'\n", 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[])
 {
 	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' },
 		{}
 	};
 
-	info("version %s", UDEV_VERSION);
+	info("version %s\n", UDEV_VERSION);
 	udev_config_init();
 	if (udev_log_priority < LOG_INFO) {
 		char priority[32];
@@ -79,23 +104,27 @@ int main(int argc, char *argv[], char *envp[])
 	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;
 
-		dbg("option '%c'", option);
+		dbg("option '%c'\n", option);
 		switch (option) {
 		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: 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);
@@ -109,6 +138,11 @@ int main(int argc, char *argv[], char *envp[])
 		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);
 
@@ -130,9 +164,12 @@ int main(int argc, char *argv[], char *envp[])
 		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 */
@@ -142,14 +179,14 @@ int main(int argc, char *argv[], char *envp[])
 	setenv("DEVPATH", udev->dev->devpath, 1);
 	setenv("SUBSYSTEM", udev->dev->subsystem, 1);
 	setenv("ACTION", udev->action, 1);
+	import_uevent_var(udev->dev->devpath);
 
-	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");
-
-	info("looking at device '%s' from subsystem '%s'", udev->dev->devpath, udev->dev->subsystem);
+	info("looking at device '%s' from subsystem '%s'\n", udev->dev->devpath, udev->dev->subsystem);
 	retval = udev_device_event(&rules, udev);
+
+	if (udev->event_timeout >= 0)
+		info("custom event timeout: %i\n", udev->event_timeout);
+
 	if (retval == 0 && !udev->ignore_device && udev_run) {
 		struct name_entry *name_loop;
 
@@ -158,9 +195,10 @@ int main(int argc, char *argv[], char *envp[])
 
 			strlcpy(program, name_loop->name, sizeof(program));
 			udev_rules_apply_format(udev, program, sizeof(program));
-			info("run: '%s'", program);
+			info("run: '%s'\n", program);
 		}
 	}
+	udev_device_cleanup(udev);
 
 exit:
 	udev_rules_cleanup(&rules);