chiark / gitweb /
[PATCH] add /etc/dev.d/ support for udev add and remove events.
[elogind.git] / udev-remove.c
index 9db63ed..dc6fcfc 100644 (file)
 #include <errno.h>
 
 #include "udev.h"
+#include "udev_lib.h"
 #include "udev_version.h"
 #include "udev_dbus.h"
 #include "logging.h"
 #include "namedev.h"
 #include "udevdb.h"
-#include "libsysfs/libsysfs.h"
 
 static int delete_path(char *path)
 {
@@ -52,6 +52,8 @@ static int delete_path(char *path)
 
                /* remove if empty */
                retval = rmdir(path);
+               if (errno == ENOENT)
+                       retval = 0;
                if (retval) {
                        if (errno == ENOTEMPTY)
                                return 0;
@@ -66,46 +68,57 @@ static int delete_path(char *path)
 
 static int delete_node(struct udevice *dev)
 {
-       char filename[255];
-       char *symlinks;
-       char *linkname;
+       char filename[NAME_SIZE];
+       char linkname[NAME_SIZE];
+       char partitionname[NAME_SIZE];
        int retval;
+       int i;
+       char *pos;
+       int len;
 
-       strncpy(filename, udev_root, sizeof(filename));
-       strncat(filename, dev->name, sizeof(filename));
+       strfieldcpy(filename, udev_root);
+       strfieldcat(filename, dev->name);
 
        info("removing device node '%s'", filename);
        retval = unlink(filename);
+       if (errno == ENOENT)
+               retval = 0;
        if (retval) {
                dbg("unlink(%s) failed with error '%s'",
                        filename, strerror(errno));
                return retval;
        }
 
+       /* remove partition nodes */
+       if (dev->partitions > 0) {
+               info("removing partitions '%s[1-%i]'", filename, dev->partitions);
+               for (i = 1; i <= dev->partitions; i++) {
+                       strfieldcpy(partitionname, filename);
+                       strintcat(partitionname, i);
+                       unlink(partitionname);
+               }
+       }
+
        /* remove subdirectories */
        if (strchr(dev->name, '/'))
                delete_path(filename);
 
-       if (*dev->symlink) {
-               symlinks = dev->symlink;
-               while (1) {
-                       linkname = strsep(&symlinks, " ");
-                       if (linkname == NULL)
-                               break;
-
-                       strncpy(filename, udev_root, sizeof(filename));
-                       strncat(filename, linkname, sizeof(filename));
-
-                       dbg("unlinking symlink '%s'", filename);
-                       retval = unlink(filename);
-                       if (retval) {
-                               dbg("unlink(%s) failed with error '%s'",
-                                       filename, strerror(errno));
-                               return retval;
-                       }
-                       if (strchr(dev->symlink, '/')) {
-                               delete_path(filename);
-                       }
+       foreach_strpart(dev->symlink, " ", pos, len) {
+               strfieldcpymax(linkname, pos, len+1);
+               strfieldcpy(filename, udev_root);
+               strfieldcat(filename, linkname);
+
+               dbg("unlinking symlink '%s'", filename);
+               retval = unlink(filename);
+               if (errno == ENOENT)
+                       retval = 0;
+               if (retval) {
+                       dbg("unlink(%s) failed with error '%s'",
+                               filename, strerror(errno));
+                       return retval;
+               }
+               if (strchr(dev->symlink, '/')) {
+                       delete_path(filename);
                }
        }
 
@@ -131,12 +144,13 @@ int udev_remove_device(char *path, char *subsystem)
                temp = strrchr(path, '/');
                if (temp == NULL)
                        return -ENODEV;
-               strncpy(dev.name, &temp[1], sizeof(dev.name));
+               strfieldcpy(dev.name, &temp[1]);
        }
 
        dbg("name is '%s'", dev.name);
        udevdb_delete_dev(path);
 
+       dev_d_send(&dev, subsystem);
        sysbus_send_remove(dev.name, path);
 
        retval = delete_node(&dev);