libudev: split source files

diff --git a/udev/lib/Makefile.am b/udev/lib/Makefile.am
index 791191c643682b5afa60792bb774d290fe118056..2e5b81d4e4ab919609029eccc9f42f558eac3687 100644 (file)
--- a/udev/lib/Makefile.am
+++ b/udev/lib/Makefile.am
@@ -21,6 +21,9 @@ include_HEADERS =\
 libudev_la_SOURCES =\
        libudev-private.h \
        libudev.c \
 libudev_la_SOURCES =\
        libudev-private.h \
        libudev.c \

+       libudev-utils.c \
+       libudev-device.c \
+       libudev-enumerate.c \

        ../list.h \
        ../udev.h \
        ../udev_utils.c \
        ../list.h \
        ../udev.h \
        ../udev_utils.c \

diff --git a/udev/lib/libudev-device.c b/udev/lib/libudev-device.c
new file mode 100644 (file)
index 0000000..805eef9
--- /dev/null
+++ b/udev/lib/libudev-device.c
@@ -0,0 +1,256 @@
+/*
+ * libudev - interface to udev device information
+ *
+ * Copyright (C) 2008 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, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <dirent.h>
+#include <sys/stat.h>
+
+#include "libudev.h"
+#include "libudev-private.h"
+#include "../udev.h"
+
+static struct udev_device *device_init(struct udev *udev)
+{
+       struct udev_device *udev_device;
+
+       udev_device = malloc(sizeof(struct udev_device));
+       if (udev_device == NULL)
+               return NULL;
+       memset(udev_device, 0x00, sizeof(struct udev_device));
+       udev_device->refcount = 1;
+       udev_device->udev = udev;
+       return udev_device;
+}
+
+/**
+ * udev_device_new_from_devpath:
+ * @udev: udev library context
+ * @devpath: sys device path
+ *
+ * Create new udev device, and fill in information from the sysfs
+ * device and the udev database entry. The devpath must not contain
+ * the sysfs mount path, and must contain a leading '/'.
+ *
+ * The initial refcount is 1, and needs to be decremented to
+ * release the ressources of the udev device.
+ *
+ * Returns: a new udev device, or #NULL, if it does not exist
+ **/
+struct udev_device *udev_device_new_from_devpath(struct udev *udev, const char *devpath)
+{
+       char path[PATH_SIZE];
+       struct stat statbuf;
+       struct udev_device *udev_device;
+       int err;
+
+       strlcpy(path, udev_get_sys_path(udev), sizeof(path));
+       strlcat(path, devpath, sizeof(path));
+       if (stat(path, &statbuf) != 0)
+               return NULL;
+       if (!S_ISDIR(statbuf.st_mode))
+               return NULL;
+
+       udev_device = device_init(udev);
+       if (udev_device == NULL)
+               return NULL;
+
+       udev_device->udevice = udev_device_init(NULL);
+       if (udev_device->udevice == NULL) {
+               free(udev_device);
+               return NULL;
+       }
+       log_info(udev, "device %p created\n", udev_device);
+
+       strlcpy(path, devpath, sizeof(path));
+       sysfs_resolve_link(path, sizeof(path));
+
+       err = udev_db_get_device(udev_device->udevice, path);
+       if (err >= 0)
+               log_info(udev, "device %p filled with udev database data\n", udev_device);
+       log_info(udev, "device %p filled with %s data\n", udev_device, udev_device_get_devpath(udev_device));
+       return udev_device;
+}
+
+/**
+ * udev_device_get_udev:
+ *
+ * Retrieve the udev library context the device was created with.
+ *
+ * Returns: the udev library context
+ **/
+struct udev *udev_device_get_udev(struct udev_device *udev_device)
+{
+       return udev_device->udev;
+}
+
+/**
+ * udev_device_ref:
+ * @udev_device: udev device
+ *
+ * Take a reference of a udev device.
+ *
+ * Returns: the passed udev device
+ **/
+struct udev_device *udev_device_ref(struct udev_device *udev_device)
+{
+       udev_device->refcount++;
+       return udev_device;
+}
+
+/**
+ * udev_device_unref:
+ * @udev_device: udev device
+ *
+ * Drop a reference of a udev device. If the refcount reaches zero,
+ * the ressources of the device will be released.
+ *
+ **/
+void udev_device_unref(struct udev_device *udev_device)
+{
+       udev_device->refcount--;
+       if (udev_device->refcount > 0)
+               return;
+       udev_device_cleanup(udev_device->udevice);
+       free(udev_device);
+}
+
+/**
+ * udev_device_get_devpath:
+ * @udev_device: udev device
+ *
+ * Retrieve the sys path of the udev device. The path does not contain
+ * the sys mount point.
+ *
+ * Returns: the sys path of the udev device
+ **/
+const char *udev_device_get_devpath(struct udev_device *udev_device)
+{
+       return udev_device->udevice->dev->devpath;
+}
+
+/**
+ * udev_device_get_devname:
+ * @udev_device: udev device
+ *
+ * Retrieve the device node file name belonging to the udev device.
+ * The path does not contain the device directory, and does not contain
+ * a leading '/'.
+ *
+ * Returns: the device node file name of the udev device, or #NULL if no device node exists
+ **/
+const char *udev_device_get_devname(struct udev_device *udev_device)
+{
+       if (udev_device->udevice->name[0] == '\0')
+               return NULL;
+       return udev_device->udevice->name;
+}
+
+/**
+ * udev_device_get_subsystem:
+ * @udev_device: udev device
+ *
+ * Retrieve the subsystem string of the udev device. The string does not
+ * contain any "/".
+ *
+ * Returns: the subsystem name of the udev device, or #NULL if it can not be determined
+ **/
+const char *udev_device_get_subsystem(struct udev_device *udev_device)
+{
+       struct sysfs_device *dev = udev_device->udevice->dev;
+       if (dev->subsystem[0] != '\0')
+               return dev->subsystem;
+       if (util_get_sys_subsystem(udev_device->udev, dev->devpath,
+                         dev->subsystem, sizeof(dev->subsystem)) < 2)
+               return NULL;
+       return dev->subsystem;
+}
+
+/**
+ * udev_device_get_devlinks:
+ * @udev_device: udev device
+ * @cb: function to be called for every device link found
+ * @data: data to be passed to the function
+ *
+ * Retrieve the device links pointing to the device file of the
+ * udev device. For every device link, the passed function will be
+ * called with the device link string. If the function returns 1,
+ * remaning device links will be ignored. The device link path
+ * does not contain the device directory, and does not contain
+ * a leading '/'.
+ *
+ * Returns: the number of device links passed to the caller, or a negative value on error
+ **/
+int udev_device_get_devlinks(struct udev_device *udev_device,
+                             int (*cb)(struct udev_device *udev_device, const char *value, void *data),
+                             void *data)
+{
+       struct name_entry *name_loop;
+       int count = 0;
+
+       list_for_each_entry(name_loop, &udev_device->udevice->symlink_list, node) {
+               count++;
+               if (cb(udev_device, name_loop->name, data) != 0)
+                       break;
+       }
+       return count;
+}
+
+/**
+ * udev_device_get_properties:
+ * @udev_device: udev device
+ * @cb: function to be called for every property found
+ * @data: data to be passed to the function
+ *
+ * Retrieve the property key/value pairs belonging to the
+ * udev device. For every key/value pair, the passed function will be
+ * called. If the function returns 1, remaning properties will be
+ * ignored.
+ *
+ * Returns: the number of properties passed to the caller, or a negative value on error
+ **/
+int udev_device_get_properties(struct udev_device *udev_device,
+                               int (*cb)(struct udev_device *udev_device, const char *key, const char *value, void *data),
+                               void *data)
+{
+       struct name_entry *name_loop;
+       int count = 0;
+
+       list_for_each_entry(name_loop, &udev_device->udevice->env_list, node) {
+               char name[PATH_SIZE];
+               char *val;
+
+               strncpy(name, name_loop->name, PATH_SIZE);
+               name[PATH_SIZE-1] = '\0';
+               val = strchr(name, '=');
+               if (val == NULL)
+                       continue;
+               val[0] = '\0';
+               val = &val[1];
+               if (cb(udev_device, name, val, data) != 0)
+                       break;
+       }
+       return count;
+}

diff --git a/udev/lib/libudev-enumerate.c b/udev/lib/libudev-enumerate.c
new file mode 100644 (file)
index 0000000..e319866
--- /dev/null
+++ b/udev/lib/libudev-enumerate.c
@@ -0,0 +1,190 @@
+/*
+ * libudev - interface to udev device information
+ *
+ * Copyright (C) 2008 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, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <dirent.h>
+#include <sys/stat.h>
+
+#include "libudev.h"
+#include "libudev-private.h"
+#include "../udev.h"
+
+static int devices_scan_subsystem(struct udev *udev,
+                                 const char *basedir, const char *subsystem, const char *subdir,
+                                 struct list_head *device_list)
+{
+       char path[PATH_SIZE];
+       DIR *dir;
+       struct dirent *dent;
+       size_t len;
+
+       len = strlcpy(path, udev_get_sys_path(udev), sizeof(path));
+       strlcat(path, basedir, sizeof(path));
+       strlcat(path, "/", sizeof(path));
+       strlcat(path, subsystem, sizeof(path));
+       if (subdir != NULL)
+               strlcat(path, subdir, sizeof(path));
+       dir = opendir(path);
+       if (dir == NULL)
+               return -1;
+       for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
+               char devpath[PATH_SIZE];
+
+               if (dent->d_name[0] == '.')
+                       continue;
+               strlcpy(devpath, &path[len], sizeof(devpath));
+               strlcat(devpath, "/", sizeof(devpath));
+               strlcat(devpath, dent->d_name, sizeof(devpath));
+               sysfs_resolve_link(devpath, sizeof(devpath));
+               name_list_add(device_list, devpath, 1);
+       }
+       closedir(dir);
+       return 0;
+}
+
+static int devices_scan_subsystems(struct udev *udev,
+                                  const char *basedir, const char *subsystem, const char *subdir,
+                                  struct list_head *device_list)
+{
+       char path[PATH_SIZE];
+       DIR *dir;
+       struct dirent *dent;
+
+       if (subsystem != NULL)
+               return devices_scan_subsystem(udev, basedir, subsystem, subdir, device_list);
+
+       strlcpy(path, udev_get_sys_path(udev), sizeof(path));
+       strlcat(path, basedir, sizeof(path));
+       dir = opendir(path);
+       if (dir == NULL)
+               return -1;
+       for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
+               if (dent->d_name[0] == '.')
+                       continue;
+               devices_scan_subsystem(udev, basedir, dent->d_name, subdir, device_list);
+       }
+       closedir(dir);
+       return 0;
+}
+
+static int devices_delay(struct udev *udev, const char *devpath)
+{
+       static const char *delay_device_list[] = {
+               "/block/md",
+               "/block/dm-",
+               NULL
+       };
+       int i;
+
+       for (i = 0; delay_device_list[i] != NULL; i++) {
+               if (strstr(devpath, delay_device_list[i]) != NULL) {
+                       log_info(udev, "delaying: %s\n", devpath);
+                       return 1;
+               }
+       }
+       return 0;
+}
+
+static int devices_call(struct udev *udev, const char *devpath,
+                       int (*cb)(struct udev *udev,
+                                 const char *devpath, const char *subsystem, const char *name,
+                                 void *data),
+                       void *data,
+                       int *cb_rc)
+{
+       char subsystem[NAME_SIZE];
+       const char *name;
+
+       name = strrchr(devpath, '/');
+       if (name == NULL)
+               return -1;
+       name++;
+
+       if (util_get_sys_subsystem(udev, devpath, subsystem, sizeof(subsystem)) < 2)
+               return -1;
+       *cb_rc = cb(udev, devpath, subsystem, name, data);
+       return 0;
+}
+
+/**
+ * udev_devices_enumerate:
+ * @udev_device: udev device
+ * @cb: function to be called for every property found
+ * @data: data to be passed to the function
+ *
+ * Retrieve the property key/value pairs belonging to the
+ * udev device. For every key/value pair, the passed function will be
+ * called. If the function returns 1, remaning properties will be
+ * ignored.
+ *
+ * Returns: the number of properties passed to the caller, or a negative value on error
+ **/
+int udev_devices_enumerate(struct udev *udev, const char *subsystem,
+                          int (*cb)(struct udev *udev,
+                                    const char *devpath, const char *subsystem, const char *name, void *data),
+                          void *data)
+{
+       char base[PATH_SIZE];
+       struct stat statbuf;
+       struct list_head device_list;
+       struct name_entry *loop_device;
+       struct name_entry *tmp_device;
+       int cb_rc = 0;
+       int count = 0;
+
+       INIT_LIST_HEAD(&device_list);
+
+       /* if we have /sys/subsystem/, forget all the old stuff */
+       strlcpy(base, sysfs_path, sizeof(base));
+       strlcat(base, "/subsystem", sizeof(base));
+       if (stat(base, &statbuf) == 0) {
+               devices_scan_subsystems(udev, "/subsystem", subsystem, "/devices", &device_list);
+       } else {
+               devices_scan_subsystems(udev, "/bus", subsystem, "/devices", &device_list);
+               devices_scan_subsystems(udev, "/class", subsystem, NULL, &device_list);
+       }
+
+       list_for_each_entry_safe(loop_device, tmp_device, &device_list, node) {
+               if (devices_delay(udev, loop_device->name))
+                       continue;
+               if (cb_rc == 0)
+                       if (devices_call(udev, loop_device->name, cb, data, &cb_rc) == 0)
+                               count++;
+               list_del(&loop_device->node);
+               free(loop_device);
+       }
+
+       /* handle remaining delayed devices */
+       list_for_each_entry_safe(loop_device, tmp_device, &device_list, node) {
+               if (cb_rc == 0)
+                       if (devices_call(udev, loop_device->name, cb, data, &cb_rc) == 0)
+                               count++;
+               list_del(&loop_device->node);
+               free(loop_device);
+       }
+
+       return count;
+}

diff --git a/udev/lib/libudev-private.h b/udev/lib/libudev-private.h
index 8f7e247f58fae3d4833cee77b4da8c6fef374592..4697f84da887e74ed8f5ba49b590276c0a1b9c89 100644 (file)
--- a/udev/lib/libudev-private.h
+++ b/udev/lib/libudev-private.h
@@ -57,4 +57,6 @@ static inline void udev_log(struct udev *udev,
              __attribute__ ((format(printf, 6, 7))) {}
 #endif
 
              __attribute__ ((format(printf, 6, 7))) {}
 #endif
 

+extern ssize_t util_get_sys_subsystem(struct udev *udev, const char *devpath, char *subsystem, size_t size);
+

 #endif
 #endif

diff --git a/udev/lib/libudev-utils.c b/udev/lib/libudev-utils.c
new file mode 100644 (file)
index 0000000..8251b64
--- /dev/null
+++ b/udev/lib/libudev-utils.c
@@ -0,0 +1,53 @@
+/*
+ * libudev - interface to udev device information
+ *
+ * Copyright (C) 2008 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, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <dirent.h>
+#include <sys/stat.h>
+
+#include "libudev.h"
+#include "libudev-private.h"
+#include "../udev.h"
+
+ssize_t util_get_sys_subsystem(struct udev *udev, const char *devpath, char *subsystem, size_t size)
+{
+       char path[PATH_SIZE];
+       ssize_t len;
+       const char *pos;
+
+       strlcpy(path, udev_get_sys_path(udev), sizeof(path));
+       strlcat(path, devpath, sizeof(path));
+       strlcat(path, "/subsystem", sizeof(path));
+       len = readlink(path, path, sizeof(path));
+       if (len < 0 || len >= (ssize_t) sizeof(path))
+               return -1;
+       path[len] = '\0';
+       pos = strrchr(path, '/');
+       if (pos == NULL)
+               return -1;
+       pos = &pos[1];
+       return strlcpy(subsystem, pos, size);
+}

diff --git a/udev/lib/libudev.c b/udev/lib/libudev.c
index 098ca8f602897b0af944b9a7888dc485e89a7e8a..56bd47741dc9f3fa89a31952a548c9a8c6c2294c 100644 (file)
--- a/udev/lib/libudev.c
+++ b/udev/lib/libudev.c
@@ -74,26 +74,6 @@ void log_message(int priority, const char *format, ...)
 }
 #endif
 
 }
 #endif
 

-static ssize_t get_subsystem(struct udev *udev, const char *devpath, char *subsystem, size_t size)
-{
-       char path[PATH_SIZE];
-       ssize_t len;
-       const char *pos;
-
-       strlcpy(path, udev_get_sys_path(udev), sizeof(path));
-       strlcat(path, devpath, sizeof(path));
-       strlcat(path, "/subsystem", sizeof(path));
-       len = readlink(path, path, sizeof(path));
-       if (len < 0 || len >= (ssize_t) sizeof(path))
-               return -1;
-       path[len] = '\0';
-       pos = strrchr(path, '/');
-       if (pos == NULL)
-               return -1;
-       pos = &pos[1];
-       return strlcpy(subsystem, pos, size);
-}
-

 /**
  * udev_new:
  *
 /**
  * udev_new:
  *


@@ -201,383 +181,3 @@ const char *udev_get_dev_path(struct udev *udev)
 {
        return udev_root;
 }
 {
        return udev_root;
 }

-
-static struct udev_device *device_init(struct udev *udev)
-{
-       struct udev_device *udev_device;
-
-       udev_device = malloc(sizeof(struct udev_device));
-       if (udev_device == NULL)
-               return NULL;
-       memset(udev_device, 0x00, sizeof(struct udev_device));
-       udev_device->refcount = 1;
-       udev_device->udev = udev;
-       return udev_device;
-}
-
-/**
- * udev_device_new_from_devpath:
- * @udev: udev library context
- * @devpath: sys device path
- *
- * Create new udev device, and fill in information from the sysfs
- * device and the udev database entry. The devpath must not contain
- * the sysfs mount path, and must contain a leading '/'.
- *
- * The initial refcount is 1, and needs to be decremented to
- * release the ressources of the udev device.
- *
- * Returns: a new udev device, or #NULL, if it does not exist
- **/
-struct udev_device *udev_device_new_from_devpath(struct udev *udev, const char *devpath)
-{
-       char path[PATH_SIZE];
-       struct stat statbuf;
-       struct udev_device *udev_device;
-       int err;
-
-       strlcpy(path, udev_get_sys_path(udev), sizeof(path));
-       strlcat(path, devpath, sizeof(path));
-       if (stat(path, &statbuf) != 0)
-               return NULL;
-       if (!S_ISDIR(statbuf.st_mode))
-               return NULL;
-
-       udev_device = device_init(udev);
-       if (udev_device == NULL)
-               return NULL;
-
-       udev_device->udevice = udev_device_init(NULL);
-       if (udev_device->udevice == NULL) {
-               free(udev_device);
-               return NULL;
-       }
-       log_info(udev, "device %p created\n", udev_device);
-
-       strlcpy(path, devpath, sizeof(path));
-       sysfs_resolve_link(path, sizeof(path));
-
-       err = udev_db_get_device(udev_device->udevice, path);
-       if (err >= 0)
-               log_info(udev, "device %p filled with udev database data\n", udev_device);
-       log_info(udev, "device %p filled with %s data\n", udev_device, udev_device_get_devpath(udev_device));
-       return udev_device;
-}
-
-/**
- * udev_device_get_udev:
- *
- * Retrieve the udev library context the device was created with.
- *
- * Returns: the udev library context
- **/
-struct udev *udev_device_get_udev(struct udev_device *udev_device)
-{
-       return udev_device->udev;
-}
-
-/**
- * udev_device_ref:
- * @udev_device: udev device
- *
- * Take a reference of a udev device.
- *
- * Returns: the passed udev device
- **/
-struct udev_device *udev_device_ref(struct udev_device *udev_device)
-{
-       udev_device->refcount++;
-       return udev_device;
-}
-
-/**
- * udev_device_unref:
- * @udev_device: udev device
- *
- * Drop a reference of a udev device. If the refcount reaches zero,
- * the ressources of the device will be released.
- *
- **/
-void udev_device_unref(struct udev_device *udev_device)
-{
-       udev_device->refcount--;
-       if (udev_device->refcount > 0)
-               return;
-       udev_device_cleanup(udev_device->udevice);
-       free(udev_device);
-}
-
-/**
- * udev_device_get_devpath:
- * @udev_device: udev device
- *
- * Retrieve the sys path of the udev device. The path does not contain
- * the sys mount point.
- *
- * Returns: the sys path of the udev device
- **/
-const char *udev_device_get_devpath(struct udev_device *udev_device)
-{
-       return udev_device->udevice->dev->devpath;
-}
-
-/**
- * udev_device_get_devname:
- * @udev_device: udev device
- *
- * Retrieve the device node file name belonging to the udev device.
- * The path does not contain the device directory, and does not contain
- * a leading '/'.
- *
- * Returns: the device node file name of the udev device, or #NULL if no device node exists
- **/
-const char *udev_device_get_devname(struct udev_device *udev_device)
-{
-       if (udev_device->udevice->name[0] == '\0')
-               return NULL;
-       return udev_device->udevice->name;
-}
-
-/**
- * udev_device_get_subsystem:
- * @udev_device: udev device
- *
- * Retrieve the subsystem string of the udev device. The string does not
- * contain any "/".
- *
- * Returns: the subsystem name of the udev device, or #NULL if it can not be determined
- **/
-const char *udev_device_get_subsystem(struct udev_device *udev_device)
-{
-       struct sysfs_device *dev = udev_device->udevice->dev;
-       if (dev->subsystem[0] != '\0')
-               return dev->subsystem;
-       if (get_subsystem(udev_device->udev, dev->devpath,
-                         dev->subsystem, sizeof(dev->subsystem)) < 2)
-               return NULL;
-       return dev->subsystem;
-}
-
-/**
- * udev_device_get_devlinks:
- * @udev_device: udev device
- * @cb: function to be called for every device link found
- * @data: data to be passed to the function
- *
- * Retrieve the device links pointing to the device file of the
- * udev device. For every device link, the passed function will be
- * called with the device link string. If the function returns 1,
- * remaning device links will be ignored. The device link path
- * does not contain the device directory, and does not contain
- * a leading '/'.
- *
- * Returns: the number of device links passed to the caller, or a negative value on error
- **/
-int udev_device_get_devlinks(struct udev_device *udev_device,
-                             int (*cb)(struct udev_device *udev_device, const char *value, void *data),
-                             void *data)
-{
-       struct name_entry *name_loop;
-       int count = 0;
-
-       list_for_each_entry(name_loop, &udev_device->udevice->symlink_list, node) {
-               count++;
-               if (cb(udev_device, name_loop->name, data) != 0)
-                       break;
-       }
-       return count;
-}
-
-/**
- * udev_device_get_properties:
- * @udev_device: udev device
- * @cb: function to be called for every property found
- * @data: data to be passed to the function
- *
- * Retrieve the property key/value pairs belonging to the
- * udev device. For every key/value pair, the passed function will be
- * called. If the function returns 1, remaning properties will be
- * ignored.
- *
- * Returns: the number of properties passed to the caller, or a negative value on error
- **/
-int udev_device_get_properties(struct udev_device *udev_device,
-                               int (*cb)(struct udev_device *udev_device, const char *key, const char *value, void *data),
-                               void *data)
-{
-       struct name_entry *name_loop;
-       int count = 0;
-
-       list_for_each_entry(name_loop, &udev_device->udevice->env_list, node) {
-               char name[PATH_SIZE];
-               char *val;
-
-               strncpy(name, name_loop->name, PATH_SIZE);
-               name[PATH_SIZE-1] = '\0';
-               val = strchr(name, '=');
-               if (val == NULL)
-                       continue;
-               val[0] = '\0';
-               val = &val[1];
-               if (cb(udev_device, name, val, data) != 0)
-                       break;
-       }
-       return count;
-}
-
-static int devices_scan_subsystem(struct udev *udev,
-                                 const char *basedir, const char *subsystem, const char *subdir,
-                                 struct list_head *device_list)
-{
-       char path[PATH_SIZE];
-       DIR *dir;
-       struct dirent *dent;
-       size_t len;
-
-       len = strlcpy(path, udev_get_sys_path(udev), sizeof(path));
-       strlcat(path, basedir, sizeof(path));
-       strlcat(path, "/", sizeof(path));
-       strlcat(path, subsystem, sizeof(path));
-       if (subdir != NULL)
-               strlcat(path, subdir, sizeof(path));
-       dir = opendir(path);
-       if (dir == NULL)
-               return -1;
-       for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
-               char devpath[PATH_SIZE];
-
-               if (dent->d_name[0] == '.')
-                       continue;
-               strlcpy(devpath, &path[len], sizeof(devpath));
-               strlcat(devpath, "/", sizeof(devpath));
-               strlcat(devpath, dent->d_name, sizeof(devpath));
-               sysfs_resolve_link(devpath, sizeof(devpath));
-               name_list_add(device_list, devpath, 1);
-       }
-       closedir(dir);
-       return 0;
-}
-
-static int devices_scan_subsystems(struct udev *udev,
-                                  const char *basedir, const char *subsystem, const char *subdir,
-                                  struct list_head *device_list)
-{
-       char path[PATH_SIZE];
-       DIR *dir;
-       struct dirent *dent;
-
-       if (subsystem != NULL)
-               return devices_scan_subsystem(udev, basedir, subsystem, subdir, device_list);
-
-       strlcpy(path, udev_get_sys_path(udev), sizeof(path));
-       strlcat(path, basedir, sizeof(path));
-       dir = opendir(path);
-       if (dir == NULL)
-               return -1;
-       for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
-               if (dent->d_name[0] == '.')
-                       continue;
-               devices_scan_subsystem(udev, basedir, dent->d_name, subdir, device_list);
-       }
-       closedir(dir);
-       return 0;
-}
-
-static int devices_delay(struct udev *udev, const char *devpath)
-{
-       static const char *delay_device_list[] = {
-               "/block/md",
-               "/block/dm-",
-               NULL
-       };
-       int i;
-
-       for (i = 0; delay_device_list[i] != NULL; i++) {
-               if (strstr(devpath, delay_device_list[i]) != NULL) {
-                       log_info(udev, "delaying: %s\n", devpath);
-                       return 1;
-               }
-       }
-       return 0;
-}
-
-static int devices_call(struct udev *udev, const char *devpath,
-                       int (*cb)(struct udev *udev,
-                                 const char *devpath, const char *subsystem, const char *name,
-                                 void *data),
-                       void *data,
-                       int *cb_rc)
-{
-       char subsystem[NAME_SIZE];
-       const char *name;
-
-       name = strrchr(devpath, '/');
-       if (name == NULL)
-               return -1;
-       name++;
-
-       if (get_subsystem(udev, devpath, subsystem, sizeof(subsystem)) < 2)
-               return -1;
-       *cb_rc = cb(udev, devpath, subsystem, name, data);
-       return 0;
-}
-
-/**
- * udev_devices_enumerate:
- * @udev_device: udev device
- * @cb: function to be called for every property found
- * @data: data to be passed to the function
- *
- * Retrieve the property key/value pairs belonging to the
- * udev device. For every key/value pair, the passed function will be
- * called. If the function returns 1, remaning properties will be
- * ignored.
- *
- * Returns: the number of properties passed to the caller, or a negative value on error
- **/
-int udev_devices_enumerate(struct udev *udev, const char *subsystem,
-                          int (*cb)(struct udev *udev,
-                                    const char *devpath, const char *subsystem, const char *name, void *data),
-                          void *data)
-{
-       char base[PATH_SIZE];
-       struct stat statbuf;
-       struct list_head device_list;
-       struct name_entry *loop_device;
-       struct name_entry *tmp_device;
-       int cb_rc = 0;
-       int count = 0;
-
-       INIT_LIST_HEAD(&device_list);
-
-       /* if we have /sys/subsystem/, forget all the old stuff */
-       strlcpy(base, sysfs_path, sizeof(base));
-       strlcat(base, "/subsystem", sizeof(base));
-       if (stat(base, &statbuf) == 0) {
-               devices_scan_subsystems(udev, "/subsystem", subsystem, "/devices", &device_list);
-       } else {
-               devices_scan_subsystems(udev, "/bus", subsystem, "/devices", &device_list);
-               devices_scan_subsystems(udev, "/class", subsystem, NULL, &device_list);
-       }
-
-       list_for_each_entry_safe(loop_device, tmp_device, &device_list, node) {
-               if (devices_delay(udev, loop_device->name))
-                       continue;
-               if (cb_rc == 0)
-                       if (devices_call(udev, loop_device->name, cb, data, &cb_rc) == 0)
-                               count++;
-               list_del(&loop_device->node);
-               free(loop_device);
-       }
-
-       /* handle remaining delayed devices */
-       list_for_each_entry_safe(loop_device, tmp_device, &device_list, node) {
-               if (cb_rc == 0)
-                       if (devices_call(udev, loop_device->name, cb, data, &cb_rc) == 0)
-                               count++;
-               list_del(&loop_device->node);
-               free(loop_device);
-       }
-
-       return count;
-}