chiark / gitweb /
[PATCH] klibc: use klcc wrapper instead of our own Makefile
[elogind.git] / udevinfo.c
index a4c17da3f09069bded7b65c3d3b97a86c6f6ce9b..ccc3e58e2b8f884d73a7075252dcd21d5eb688ff 100644 (file)
@@ -3,7 +3,6 @@
  *
  * Copyright (C) 2004 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 version 2 of the License.
@@ -28,7 +27,7 @@
 #include <errno.h>
 
 #include "libsysfs/sysfs/libsysfs.h"
-#include "libsysfs/dlist.h"
+#include "udev_libc_wrapper.h"
 #include "udev.h"
 #include "udev_utils.h"
 #include "udev_version.h"
@@ -36,9 +35,7 @@
 #include "logging.h"
 
 
-#define SYSFS_VALUE_SIZE               256
-
-#ifdef LOG
+#ifdef USE_LOG
 void log_message (int level, const char *format, ...)
 {
        va_list args;
@@ -52,12 +49,12 @@ void log_message (int level, const char *format, ...)
 static void print_all_attributes(struct dlist *attr_list)
 {
        struct sysfs_attribute *attr;
-       char value[SYSFS_VALUE_SIZE];
+       char value[VALUE_SIZE];
        int len;
 
        dlist_for_each_data(attr_list, attr, struct sysfs_attribute) {
                if (attr->value != NULL) {
-                       strfieldcpy(value, attr->value);
+                       strlcpy(value, attr->value, sizeof(value));
                        len = strlen(value);
                        if (len == 0)
                                continue;
@@ -83,10 +80,13 @@ static void print_all_attributes(struct dlist *attr_list)
 
 static int print_record(struct udevice *udev)
 {
+       struct name_entry *name_loop;
+
        printf("P: %s\n", udev->devpath);
        printf("N: %s\n", udev->name);
-       printf("S: %s\n", udev->symlink);
-       printf("\n");
+       list_for_each_entry(name_loop, &udev->symlink_list, node)
+               printf("S: %s\n", name_loop->name);
+
        return 0;
 }
 
@@ -95,7 +95,7 @@ enum query_type {
        NAME,
        PATH,
        SYMLINK,
-       ALL
+       ALL,
 };
 
 static int print_device_chain(const char *path)
@@ -178,20 +178,30 @@ exit:
        return retval;
 }
 
-static int process_options(int argc, char *argv[])
+static int print_dump(const char *devpath, const char *name) {
+       printf("%s=%s/%s\n", devpath, udev_root, name);
+       return 0;
+}
+
+int main(int argc, char *argv[], char *envp[])
 {
-       static const char short_options[] = "an:p:q:rVh";
+       static const char short_options[] = "adn:p:q:rVh";
        int option;
-       int retval = 1;
        struct udevice udev;
        int root = 0;
        int attributes = 0;
        enum query_type query = NONE;
-       char result[1024] = "";
-       char path[NAME_SIZE] = "";
-       char name[NAME_SIZE] = "";
-       char temp[NAME_SIZE];
+       char path[PATH_SIZE] = "";
+       char name[PATH_SIZE] = "";
+       char temp[PATH_SIZE];
+       struct name_entry *name_loop;
        char *pos;
+       int retval = 0;
+
+       logging_init("udevinfo");
+
+       udev_init_config();
+       udev_init_device(&udev, NULL, NULL);
 
        /* get command line options */
        while (1) {
@@ -203,12 +213,12 @@ static int process_options(int argc, char *argv[])
                switch (option) {
                case 'n':
                        dbg("udev name: %s\n", optarg);
-                       strfieldcpy(name, optarg);
+                       strlcpy(name, optarg, sizeof(name));
                        break;
 
                case 'p':
                        dbg("udev path: %s\n", optarg);
-                       strfieldcpy(path, optarg);
+                       strlcpy(path, optarg, sizeof(path));
                        break;
 
                case 'q':
@@ -235,7 +245,8 @@ static int process_options(int argc, char *argv[])
                        }
 
                        printf("unknown query type\n");
-                       exit(1);
+                       retval = 1;
+                       goto exit;
 
                case 'r':
                        root = 1;
@@ -245,12 +256,16 @@ static int process_options(int argc, char *argv[])
                        attributes = 1;
                        break;
 
+               case 'd':
+                       udev_db_dump_names(print_dump);
+                       goto exit;
+
                case 'V':
                        printf("udevinfo, version %s\n", UDEV_VERSION);
-                       exit(0);
+                       goto exit;
 
                case 'h':
-                       retval = 0;
+                       retval = 2;
                case '?':
                default:
                        goto help;
@@ -266,15 +281,14 @@ static int process_options(int argc, char *argv[])
                        } else {
                                if (path[0] != '/') {
                                        /* prepend '/' if missing */
-                                       strfieldcat(temp, "/");
-                                       strfieldcat(temp, path);
+                                       strcpy(temp, "/");
+                                       strlcpy(temp, path, sizeof(temp));
                                        pos = temp;
                                } else {
                                        pos = path;
                                }
                        }
-                       memset(&udev, 0x00, sizeof(struct udevice));
-                       retval = udev_db_get_device_by_devpath(&udev, pos);
+                       retval = udev_db_get_device(&udev, pos);
                        if (retval != 0) {
                                printf("device not found in database\n");
                                goto exit;
@@ -283,92 +297,79 @@ static int process_options(int argc, char *argv[])
                }
 
                if (name[0] != '\0') {
-                       /* remove udev_root if given */
-                       int len = strlen(udev_root);
+                       char devpath[PATH_SIZE];
+                       int len;
 
+                       /* remove udev_root if given */
+                       len = strlen(udev_root);
                        if (strncmp(name, udev_root, len) == 0) {
                                pos = &name[len+1];
                        } else
                                pos = name;
 
-                       memset(&udev, 0x00, sizeof(struct udevice));
-                       strfieldcpy(udev.name, pos);
-                       retval = udev_db_get_device_byname(&udev, pos);
+                       retval = udev_db_search_name(devpath, sizeof(devpath), pos);
                        if (retval != 0) {
                                printf("device not found in database\n");
                                goto exit;
                        }
-
+                       udev_db_get_device(&udev, devpath);
                        goto print;
                }
 
                printf("query needs device path(-p) or node name(-n) specified\n");
+               retval = 3;
                goto exit;
 
 print:
                switch(query) {
                case NAME:
-                       if (root) {
-                               snprintf(result, NAME_SIZE-1, "%s/%s", udev_root, udev.name);
-                               result[NAME_SIZE-1] = '\0';
-                       } else {
-                               strfieldcpy(result, udev.name);
-                       }
-                       break;
-
+                       if (root)
+                               printf("%s/%s\n", udev_root, udev.name);
+                       else
+                               printf("%s\n", udev.name);
+                       goto exit;
                case 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;
-
+                       if (list_empty(&udev.symlink_list))
+                               break;
+                       if (root)
+                               list_for_each_entry(name_loop, &udev.symlink_list, node)
+                                       printf("%s/%s ", udev_root, name_loop->name);
+                       else
+                               list_for_each_entry(name_loop, &udev.symlink_list, node)
+                                       printf("%s ", name_loop->name);
+                       printf("\n");
+                       goto exit;
                case PATH:
-                       strfieldcpy(result, udev.devpath);
-                       break;
-
+                       printf("%s\n", udev.devpath);
+                       goto exit;
                case ALL:
                        print_record(&udev);
                        goto exit;
-
                default:
-                       goto exit;
+                       goto help;
                }
-               printf("%s\n", result);
-
-exit:
-               return retval;
        }
 
        if (attributes) {
                if (path[0] == '\0') {
                        printf("attribute walk on device chain needs path(-p) specified\n");
-                       return -EINVAL;
+                       retval = 4;
+                       goto exit;
                } else {
                        if (strncmp(path, sysfs_path, strlen(sysfs_path)) != 0) {
                                /* prepend sysfs mountpoint if not given */
-                               strfieldcpy(temp, path);
-                               strfieldcpy(path, sysfs_path);
-                               strfieldcat(path, temp);
+                               snprintf(temp, sizeof(temp), "%s%s", sysfs_path, path);
+                               temp[sizeof(temp)-1] = '\0';
+                               strlcpy(path, temp, sizeof(temp));
                        }
                        print_device_chain(path);
-                       return 0;
+                       goto exit;
                }
        }
 
        if (root) {
                printf("%s\n", udev_root);
-               return 0;
+               goto exit;
        }
 
 help:
@@ -384,24 +385,14 @@ 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"
+              "  -d       print the relationship of devpath and the node name for all\n"
+              "           devices available in the database\n"
               "  -V       print udev version\n"
               "  -h       print this help text\n"
               "\n");
-       return retval;
-}
-
-int main(int argc, char *argv[], char *envp[])
-{
-       int rc = 0;
-
-       logging_init("udevinfo");
-
-       /* initialize our configuration */
-       udev_init_config();
-
-       rc = process_options(argc, argv);
 
+exit:
+       udev_cleanup_device(&udev);
        logging_close();
-       exit(rc);
+       return retval;
 }