#include <stdio.h>
#include <string.h>
#include <stddef.h>
+#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <dirent.h>
#include "libsysfs/sysfs/libsysfs.h"
+#include "udev_libc_wrapper.h"
#include "udev.h"
#include "udev_utils.h"
#include "logging.h"
static int get_db_filename(const char *devpath, char *filename, int len)
{
- char temp[SYSFS_PATH_MAX];
+ char temp[PATH_SIZE];
char *pos;
/* replace '/' to transform path into a filename */
- strfieldcpy(temp, devpath);
+ strlcpy(temp, devpath, sizeof(temp));
pos = strchr(&temp[1], '/');
while (pos) {
pos[0] = PATH_TO_NAME_CHAR;
int udev_db_add_device(struct udevice *udev)
{
- char filename[SYSFS_PATH_MAX];
+ char filename[PATH_SIZE];
struct name_entry *name_loop;
FILE *f;
if (udev->test_run)
return 0;
- get_db_filename(udev->devpath, filename, SYSFS_PATH_MAX);
+ get_db_filename(udev->devpath, filename, sizeof(filename));
create_path(filename);
static int parse_db_file(struct udevice *udev, const char *filename)
{
- char line[NAME_SIZE];
- char temp[NAME_SIZE];
+ char line[PATH_SIZE];
unsigned int major, minor;
char *bufline;
char *buf;
switch(bufline[0]) {
case 'P':
- if (count > DEVPATH_SIZE)
- count = DEVPATH_SIZE-1;
- strncpy(udev->devpath, &bufline[2], count-2);
- udev->devpath[count-2] = '\0';
+ if (count > sizeof(udev->devpath))
+ count = sizeof(udev->devpath)-1;
+ strlcpy(udev->devpath, &bufline[2], count-2);
break;
case 'N':
- if (count > NAME_SIZE)
- count = NAME_SIZE-1;
- strncpy(udev->name, &bufline[2], count-2);
- udev->name[count-2] = '\0';
+ if (count > sizeof(udev->name))
+ count = sizeof(udev->name)-1;
+ strlcpy(udev->name, &bufline[2], count-2);
break;
case 'M':
- if (count > NAME_SIZE)
- count = NAME_SIZE-1;
- strncpy(temp, &bufline[2], count-2);
- temp[count-2] = '\0';
- sscanf(temp, "%u:%u", &major, &minor);
+ if (count > sizeof(line))
+ count = sizeof(line)-1;
+ strlcpy(line, &bufline[2], count-2);
+ sscanf(line, "%u:%u", &major, &minor);
udev->devt = makedev(major, minor);
break;
case 'S':
- if (count > NAME_SIZE)
- count = NAME_SIZE-1;
- strncpy(temp, &bufline[2], count-2);
- temp[count-2] = '\0';
- name_list_add(&udev->symlink_list, temp, 0);
+ if (count > sizeof(line))
+ count = sizeof(line)-1;
+ strlcpy(line, &bufline[2], count-2);
+ name_list_add(&udev->symlink_list, line, 0);
break;
case 'A':
- if (count > NAME_SIZE)
- count = NAME_SIZE-1;
- strncpy(line, &bufline[2], count-2);
- line[count-2] = '\0';
+ if (count > sizeof(line))
+ count = sizeof(line)-1;
+ strlcpy(line, &bufline[2], count-2);
udev->partitions = atoi(line);
break;
case 'R':
- if (count > NAME_SIZE)
- count = NAME_SIZE-1;
- strncpy(line, &bufline[2], count-2);
- line[count-2] = '\0';
+ if (count > sizeof(line))
+ count = sizeof(line)-1;
+ strlcpy(line, &bufline[2], count-2);
udev->ignore_remove = atoi(line);
break;
}
int udev_db_delete_device(struct udevice *udev)
{
- char filename[SYSFS_PATH_MAX];
+ char filename[PATH_SIZE];
- get_db_filename(udev->devpath, filename, SYSFS_PATH_MAX);
+ get_db_filename(udev->devpath, filename, sizeof(filename));
unlink(filename);
return 0;
int udev_db_get_device(struct udevice *udev, const char *devpath)
{
- char filename[SYSFS_PATH_MAX];
+ char filename[PATH_SIZE];
- get_db_filename(devpath, filename, SYSFS_PATH_MAX);
+ get_db_filename(devpath, filename, sizeof(filename));
if (parse_db_file(udev, filename) != 0)
return -1;
int udev_db_search_name(char *devpath, size_t len, const char *name)
{
- struct dirent *ent;
DIR *dir;
- char filename[NAME_SIZE];
dir = opendir(udev_db_path);
if (dir == NULL) {
}
while (1) {
- char path[DEVPATH_SIZE];
- char nodename[NAME_SIZE];
+ struct dirent *ent;
+ char filename[PATH_SIZE];
+ char path[PATH_SIZE];
+ char nodename[PATH_SIZE];
char *bufline;
char *buf;
size_t bufsize;
if (ent->d_name[0] == '.')
continue;
- snprintf(filename, NAME_SIZE, "%s/%s", udev_db_path, ent->d_name);
- filename[NAME_SIZE-1] = '\0';
+ snprintf(filename, sizeof(filename), "%s/%s", udev_db_path, ent->d_name);
+ filename[sizeof(filename)-1] = '\0';
dbg("looking at '%s'", filename);
if (file_map(filename, &buf, &bufsize) != 0) {
switch(bufline[0]) {
case 'P':
- if (count > DEVPATH_SIZE)
- count = DEVPATH_SIZE-1;
- strncpy(path, &bufline[2], count-2);
- path[count-2] = '\0';
+ if (count > sizeof(path))
+ count = sizeof(path)-1;
+ strlcpy(path, &bufline[2], count-2);
break;
case 'N':
case 'S':
- if (count > NAME_SIZE)
- count = NAME_SIZE-1;
- strncpy(nodename, &bufline[2], count-2);
- nodename[count-2] = '\0';
+ if (count > sizeof(nodename))
+ count = sizeof(nodename)-1;
+ strlcpy(nodename, &bufline[2], count-2);
dbg("compare '%s' '%s'", nodename, name);
if (strcmp(nodename, name) == 0) {
- strncpy(devpath, path, len);
- devpath[len] = '\0';
+ strlcpy(devpath, path, len);
file_unmap(buf, bufsize);
closedir(dir);
return 0;
return -1;
}
-int udev_db_call_foreach(int (*handler_function)(struct udevice *udev))
+int udev_db_dump_names(int (*handler_function)(const char *path, const char *name))
{
- struct dirent *ent;
DIR *dir;
- char filename[NAME_SIZE];
- struct udevice db_udev;
dir = opendir(udev_db_path);
if (dir == NULL) {
}
while (1) {
+ struct dirent *ent;
+ char filename[PATH_SIZE];
+ char path[PATH_SIZE];
+ char nodename[PATH_SIZE];
+ char *bufline;
+ char *buf;
+ size_t bufsize;
+ size_t cur;
+ size_t count;
+
ent = readdir(dir);
if (ent == NULL || ent->d_name[0] == '\0')
break;
if (ent->d_name[0] == '.')
continue;
- snprintf(filename, NAME_SIZE, "%s/%s", udev_db_path, ent->d_name);
- filename[NAME_SIZE-1] = '\0';
+ snprintf(filename, sizeof(filename), "%s/%s", udev_db_path, ent->d_name);
+ filename[sizeof(filename)-1] = '\0';
+ dbg("looking at '%s'", filename);
- dbg("found '%s'", filename);
+ if (file_map(filename, &buf, &bufsize) != 0) {
+ dbg("unable to read db file '%s'", filename);
+ continue;
+ }
- udev_init_device(&db_udev, NULL, NULL);
- if (parse_db_file(&db_udev, filename) == 0) {
- if (handler_function(&db_udev) != 0)
+ path[0] = '\0';
+ nodename[0] = '\0';
+ cur = 0;
+ while (cur < bufsize) {
+ count = buf_get_line(buf, bufsize, cur);
+ bufline = &buf[cur];
+ cur += count+1;
+
+ switch(bufline[0]) {
+ case 'P':
+ if (count > sizeof(path))
+ count = sizeof(path)-1;
+ strlcpy(path, &bufline[2], count-2);
break;
+ case 'N':
+ if (count > sizeof(nodename))
+ count = sizeof(nodename)-1;
+ strlcpy(nodename, &bufline[2], count-2);
+ break;
+ default:
+ continue;
+ }
}
+ file_unmap(buf, bufsize);
+
+ if (path[0] == '\0' || nodename[0] == '\0')
+ continue;
+
+ if (handler_function(path, nodename) != 0)
+ break;
}
closedir(dir);
~ianmdlvl / elogind.git / blobdiff