X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevinfo.c;h=11482727436d31a9e78432ac531c4e4cd48bd5b5;hp=a90bbe11386494d66fd0b90f5a6256872447576b;hb=af4b05d4917fdfa55eff3d8d53a830464d8162a1;hpb=2b41e68a08548ce44b4d145900dab2bb04cd34f7

diff --git a/udevinfo.c b/udevinfo.c
index a90bbe113..114827274 100644
--- a/udevinfo.c
+++ b/udevinfo.c
@@ -36,10 +36,7 @@
 #include "udevdb.h"
 
 
-# define SYSFS_VALUE_MAX 200
-
-char **main_argv;
-int main_argc;
+#define SYSFS_VALUE_SIZE		256
 
 #ifdef LOG
 unsigned char logname[LOGNAME_SIZE];
@@ -58,7 +55,7 @@ static int print_all_attributes(const char *path)
 	struct dlist *attributes;
 	struct sysfs_attribute *attr;
 	struct sysfs_directory *sysfs_dir;
-	char value[SYSFS_VALUE_MAX];
+	char value[SYSFS_VALUE_SIZE];
 	int len;
 	int retval = 0;
 
@@ -197,16 +194,76 @@ exit:
 	return retval;
 }
 
-static int process_options(void)
+/* print all class/main block devices with major/minor, physical device, driver and bus */
+static int print_sysfs_devices(void)
 {
-	static const char short_options[] = "adn:p:q:rVh";
+	struct dlist *subsyslist;
+	char *class;
+
+	subsyslist = sysfs_open_subsystem_list("class");
+	if (!subsyslist)
+		return -1;
+
+	dlist_for_each_data(subsyslist, class, char) {
+		struct sysfs_class *cls;
+		struct dlist *class_devices;
+		struct sysfs_class_device *class_dev;
+		struct sysfs_device *phys_dev;
+		struct sysfs_driver *driver;
+
+		cls = sysfs_open_class(class);
+		if (!cls)
+			continue;
+
+		class_devices = sysfs_get_class_devices(cls);
+		if (!class_devices)
+			continue;
+
+		dlist_for_each_data(class_devices, class_dev, struct sysfs_class_device) {
+			struct sysfs_attribute *attr;
+
+			printf("\n");
+			printf("DEVPATH        '%s'\n", class_dev->path);
+			printf("SUBSYSTEM      '%s'\n", class_dev->classname);
+
+			attr = sysfs_get_classdev_attr(class_dev, "dev");
+			if (attr) {
+				char *pos = &(attr->value[strlen(attr->value)-1]);
+
+				if  (pos[0] == '\n')
+					pos[0] = '\0';
+
+				printf("DEVMAJORMINOR  '%s'\n", attr->value);
+			}
+
+			driver = sysfs_get_classdev_driver(class_dev);
+			if (driver)
+				printf("DEVDRIVER      '%s'\n", driver->name);
+
+			phys_dev = sysfs_get_classdev_device(class_dev);
+			if (phys_dev) {
+				printf("PHYSDEVPATH    '%s'\n", phys_dev->path);
+				if (phys_dev->bus[0] != '\0')
+					printf("PHYSDEVBUS     '%s'\n", phys_dev->bus);
+			}
+		}
+		sysfs_close_class(cls);
+	}
+	sysfs_close_list(subsyslist);
+
+	return 0;
+}
+
+static int process_options(int argc, char *argv[])
+{
+	static const char short_options[] = "adn:p:q:rsVh";
 	int option;
 	int retval = 1;
 	struct udevice udev;
 	int root = 0;
 	int attributes = 0;
 	enum query_type query = NONE;
-	char result[NAME_SIZE] = "";
+	char result[1024] = "";
 	char path[NAME_SIZE] = "";
 	char name[NAME_SIZE] = "";
 	char temp[NAME_SIZE];
@@ -214,7 +271,7 @@ static int process_options(void)
 
 	/* get command line options */
 	while (1) {
-		option = getopt(main_argc, main_argv, short_options);
+		option = getopt(argc, argv, short_options);
 		if (option == -1)
 			break;
 
@@ -260,6 +317,10 @@ static int process_options(void)
 			root = 1;
 			break;
 
+		case 's':
+			print_sysfs_devices();
+			exit(0);
+
 		case 'a':
 			attributes = 1;
 			break;
@@ -337,7 +398,20 @@ print:
 			break;
 
 		case SYMLINK:
-			strfieldcpy(result, udev.symlink);
+			if (root) {
+				int slen;
+				char *spos;
+				char slink[NAME_SIZE];
+
+				pos = result;
+				foreach_strpart(udev.symlink, " \n\r", spos, slen) {
+					strncpy(slink, spos, slen);
+					slink[slen] = '\0';
+					pos += sprintf(pos, "%s/%s ", udev_root, slink);
+				}
+			} else {
+				strfieldcpy(result, udev.symlink);
+			}
 			break;
 
 		case PATH:
@@ -391,6 +465,7 @@ help:
 	       "\n"
 	       "  -r       print udev root\n"
 	       "  -a       print all SYSFS_attributes along the device chain\n"
+	       "  -s       print all sysfs devices with major/minor, physical device and bus\n"
 	       "  -V       print udev version\n"
 	       "  -h       print this help text\n"
 	       "\n");
@@ -401,15 +476,12 @@ int main(int argc, char *argv[], char *envp[])
 {
 	int rc = 0;
 
-	main_argv = argv;
-	main_argc = argc;
-
 	logging_init("udevinfo");
 
 	/* initialize our configuration */
 	udev_init_config();
 
-	rc = process_options();
+	rc = process_options(argc, argv);
 
 	logging_close();
 	exit(rc);