-ssize_t udev_queue_skip_devpath(FILE *queue_file)
-{
- unsigned short int len;
-
- if (fread(&len, sizeof(unsigned short int), 1, queue_file) == 1) {
- char *devpath = alloca(len);
-
- /* use fread to skip, fseek might drop buffered data */
- if (fread(devpath, 1, len, queue_file) == len)
- return len;
- }
-
- return -1;
-}
-
-ssize_t udev_queue_read_devpath(FILE *queue_file, char *devpath, size_t size)
-{
- unsigned short int read_bytes = 0;
- unsigned short int len;
-
- if (fread(&len, sizeof(unsigned short int), 1, queue_file) != 1)
- return -1;
-
- read_bytes = (len < size - 1) ? len : size - 1;
- if (fread(devpath, 1, read_bytes, queue_file) != read_bytes)
- return -1;
- devpath[read_bytes] = '\0';
-
- /* if devpath was too long, skip unread characters */
- if (read_bytes != len) {
- unsigned short int skip_bytes = len - read_bytes;
- char *buf = alloca(skip_bytes);
-
- if (fread(buf, 1, skip_bytes, queue_file) != skip_bytes)
- return -1;
- }
-
- return read_bytes;
-}
-
-static FILE *open_queue_file(struct udev_queue *udev_queue, unsigned long long int *seqnum_start)
-{
- FILE *queue_file;
-
- queue_file = fopen("/run/udev/queue.bin", "re");
- if (queue_file == NULL)
- return NULL;
-
- if (udev_queue_read_seqnum(queue_file, seqnum_start) < 0) {
- udev_err(udev_queue->udev, "corrupt queue file\n");
- fclose(queue_file);
- return NULL;
- }
-
- return queue_file;
-}
-