#define _KLIBC_HAS_ARCH_SIG_ATOMIC_T
#include <stdlib.h>
#include <stdio.h>
+#include <string.h>
#include <fcntl.h>
#include <string.h>
#include <sys/stat.h>
#include <errno.h>
#include <signal.h>
+#include "libsysfs/sysfs/libsysfs.h"
#include "udev_version.h"
#include "udev.h"
#include "logging.h"
#include "namedev.h"
#include "udevdb.h"
#include "tdb/tdb.h"
-#include "libsysfs/libsysfs.h"
static TDB_CONTEXT *udevdb;
return -ENODEV;
memset(keystr, 0, NAME_SIZE);
- strcpy(keystr, path);
+ strfieldcpy(keystr, path);
key.dptr = keystr;
key.dsize = strlen(keystr) + 1;
data.dptr = (void *)dev;
- data.dsize = sizeof(*dev);
-
+ data.dsize = UDEVICE_LEN;
+
return tdb_store(udevdb, key, data, TDB_REPLACE);
}
if (data.dptr == NULL || data.dsize == 0)
return -ENODEV;
- memcpy(dev, data.dptr, sizeof(*dev));
+ memset(dev, 0, sizeof(struct udevice));
+ memcpy(dev, data.dptr, UDEVICE_LEN);
return 0;
}
return -EINVAL;
memset(keystr, 0, sizeof(keystr));
- strcpy(keystr, path);
+ strfieldcpy(keystr, path);
key.dptr = keystr;
key.dsize = strlen(keystr) + 1;
return 0;
}
-void (*user_record_callback) (char *path, struct udevice *dev);
+static int (*user_record_callback) (char *path, struct udevice *dev);
static int traverse_callback(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
{
- user_record_callback((char*) key.dptr, (struct udevice*) dbuf.dptr);
- return 0;
+ return user_record_callback((char*) key.dptr, (struct udevice*) dbuf.dptr);
}
/**
- * udevdb_dump: dumps whole database by passing record data to user function
+ * udevdb_call_foreach: dumps whole database by passing record data to user function
* @user_record_handler: user function called for every record in the database
*/
-int udevdb_dump(void (*user_record_handler) (char *path, struct udevice *dev))
+int udevdb_call_foreach(int (*user_record_handler) (char *path, struct udevice *dev))
{
+ int retval = 0;
+
if (user_record_handler == NULL) {
dbg("invalid user record handling function");
return -EINVAL;
}
user_record_callback = user_record_handler;
- tdb_traverse(udevdb, traverse_callback, NULL);
+ retval = tdb_traverse(udevdb, traverse_callback, NULL);
+ if (retval < 0)
+ return -ENODEV;
+ else
+ return 0;
+}
+
+static struct udevice *find_dev;
+static char *find_path;
+static const char *find_name;
+static int find_found;
+
+static int find_device_by_name(char *path, struct udevice *dev)
+{
+ int l, i, j;
+ if (strncmp(dev->name, find_name, sizeof(dev->name)) == 0) {
+ memcpy(find_dev, dev, sizeof(struct udevice));
+ strnfieldcpy(find_path, path, NAME_SIZE);
+ find_found = 1;
+ /* stop search */
+ return 1;
+ }
+ /* look for matching symlink*/
+ l = strlen(dev->symlink);
+ if (!l)
+ return 0;
+ i = j = 0;
+ do {
+ j = strcspn(&dev->symlink[i], " ");
+ if (j && strncmp(&dev->symlink[i], find_name, j) == 0) {
+ memcpy(find_dev, dev, sizeof(struct udevice));
+ strnfieldcpy(find_path, path, NAME_SIZE);
+ find_found = 1;
+ return 1;
+ }
+ i = i + j + 1;
+ } while (i < l);
return 0;
}
+
+/**
+ * udevdb_get_dev_byname: search device with given name by traversing the whole database
+ */
+int udevdb_get_dev_byname(const char *name, char *path, struct udevice *dev)
+{
+ find_found = 0;
+ find_path = path;
+ find_dev = dev;
+ find_name = name;
+ udevdb_call_foreach(find_device_by_name);
+ if (find_found == 1)
+ return 0;
+ else
+ return -1;
+}