1 files changed, 0 insertions, 515 deletions
diff --git a/src/libudev-legacy/libudev-queue.c b/src/libudev-legacy/libudev-queue.c
deleted file mode 100644
index 73e7fb23aa..0000000000
--- a/src/libudev-legacy/libudev-queue.c
+++ /dev/null
@@ -1,515 +0,0 @@
-/*
- * libudev - interface to udev device information
- *
- * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org>
- * Copyright (C) 2009 Alan Jenkins <alan-jenkins@tuffmail.co.uk>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <dirent.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <sys/stat.h>
-
-#include "libudev.h"
-#include "libudev-private.h"
-
-/**
- * SECTION:libudev-queue
- * @short_description: access to currently active events
- *
- * The udev daemon processes events asynchronously. All events which do not have
- * interdependencies run in parallel. This exports the current state of the
- * event processing queue, and the current event sequence numbers from the kernel
- * and the udev daemon.
- */
-
-/**
- * udev_queue:
- *
- * Opaque object representing the current event queue in the udev daemon.
- */
-struct udev_queue {
-	struct udev *udev;
-	int refcount;
-	struct udev_list_node queue_list;
-	struct udev_list_node failed_list;
-};
-
-/**
- * udev_queue_new:
- * @udev: udev library context
- *
- * The initial refcount is 1, and needs to be decremented to
- * release the resources of the udev queue context.
- *
- * Returns: the udev queue context, or #NULL on error.
- **/
-UDEV_EXPORT struct udev_queue *udev_queue_new(struct udev *udev)
-{
-	struct udev_queue *udev_queue;
-
-	if (udev == NULL)
-		return NULL;
-
-	udev_queue = calloc(1, sizeof(struct udev_queue));
-	if (udev_queue == NULL)
-		return NULL;
-	udev_queue->refcount = 1;
-	udev_queue->udev = udev;
-	udev_list_init(&udev_queue->queue_list);
-	udev_list_init(&udev_queue->failed_list);
-	return udev_queue;
-}
-
-/**
- * udev_queue_ref:
- * @udev_queue: udev queue context
- *
- * Take a reference of a udev queue context.
- *
- * Returns: the same udev queue context.
- **/
-UDEV_EXPORT struct udev_queue *udev_queue_ref(struct udev_queue *udev_queue)
-{
-	if (udev_queue == NULL)
-		return NULL;
-	udev_queue->refcount++;
-	return udev_queue;
-}
-
-/**
- * udev_queue_unref:
- * @udev_queue: udev queue context
- *
- * Drop a reference of a udev queue context. If the refcount reaches zero,
- * the resources of the queue context will be released.
- **/
-UDEV_EXPORT void udev_queue_unref(struct udev_queue *udev_queue)
-{
-	if (udev_queue == NULL)
-		return;
-	udev_queue->refcount--;
-	if (udev_queue->refcount > 0)
-		return;
-	udev_list_cleanup_entries(udev_queue->udev, &udev_queue->queue_list);
-	udev_list_cleanup_entries(udev_queue->udev, &udev_queue->failed_list);
-	free(udev_queue);
-}
-
-/**
- * udev_queue_get_udev:
- * @udev_queue: udev queue context
- *
- * Retrieve the udev library context the queue context was created with.
- *
- * Returns: the udev library context.
- **/
-UDEV_EXPORT struct udev *udev_queue_get_udev(struct udev_queue *udev_queue)
-{
-	if (udev_queue == NULL)
-		return NULL;
-	return udev_queue->udev;
-}
-
-unsigned long long int udev_get_kernel_seqnum(struct udev *udev)
-{
-	char filename[UTIL_PATH_SIZE];
-	unsigned long long int seqnum;
-	int fd;
-	char buf[32];
-	ssize_t len;
-
-	util_strscpyl(filename, sizeof(filename), udev_get_sys_path(udev), "/kernel/uevent_seqnum", NULL);
-	fd = open(filename, O_RDONLY|O_CLOEXEC);
-	if (fd < 0)
-		return 0;
-	len = read(fd, buf, sizeof(buf));
-	close(fd);
-	if (len <= 2)
-		return 0;
-	buf[len-1] = '\0';
-	seqnum = strtoull(buf, NULL, 10);
-	return seqnum;
-}
-
-/**
- * udev_queue_get_kernel_seqnum:
- * @udev_queue: udev queue context
- *
- * Returns: the current kernel event sequence number.
- **/
-UDEV_EXPORT unsigned long long int udev_queue_get_kernel_seqnum(struct udev_queue *udev_queue)
-{
-	unsigned long long int seqnum;
-
-	if (udev_queue == NULL)
-		return -EINVAL;
-
-	seqnum = udev_get_kernel_seqnum(udev_queue->udev);
-	dbg(udev_queue->udev, "seqnum=%llu\n", seqnum);
-	return seqnum;
-}
-
-int udev_queue_read_seqnum(FILE *queue_file, unsigned long long int *seqnum)
-{
-	if (fread(seqnum, sizeof(unsigned long long int), 1, queue_file) != 1)
-		return -1;
-
-	return 0;
-}
-
-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[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[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)
-{
-	char filename[UTIL_PATH_SIZE];
-	FILE *queue_file;
-
-	util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev_queue->udev), "/queue.bin", NULL);
-	queue_file = fopen(filename, "re");
-	if (queue_file == NULL)
-		return NULL;
-
-	if (udev_queue_read_seqnum(queue_file, seqnum_start) < 0) {
-		err(udev_queue->udev, "corrupt queue file\n");
-		fclose(queue_file);
-		return NULL;
-	}
-
-	return queue_file;
-}
-
-/**
- * udev_queue_get_udev_seqnum:
- * @udev_queue: udev queue context
- *
- * Returns: the last known udev event sequence number.
- **/
-UDEV_EXPORT unsigned long long int udev_queue_get_udev_seqnum(struct udev_queue *udev_queue)
-{
-	unsigned long long int seqnum_udev;
-	FILE *queue_file;
-
-	queue_file = open_queue_file(udev_queue, &seqnum_udev);
-	if (queue_file == NULL)
-		return 0;
-
-	for (;;) {
-		unsigned long long int seqnum;
-		ssize_t devpath_len;
-
-		if (udev_queue_read_seqnum(queue_file, &seqnum) < 0)
-			break;
-		devpath_len = udev_queue_skip_devpath(queue_file);
-		if (devpath_len < 0)
-			break;
-		if (devpath_len > 0)
-			seqnum_udev = seqnum;
-	}
-
-	fclose(queue_file);
-	return seqnum_udev;
-}
-
-/**
- * udev_queue_get_udev_is_active:
- * @udev_queue: udev queue context
- *
- * Returns: a flag indicating if udev is active.
- **/
-UDEV_EXPORT int udev_queue_get_udev_is_active(struct udev_queue *udev_queue)
-{
-	unsigned long long int seqnum_start;
-	FILE *queue_file;
-
-	queue_file = open_queue_file(udev_queue, &seqnum_start);
-	if (queue_file == NULL)
-		return 0;
-
-	fclose(queue_file);
-	return 1;
-}
-
-/**
- * udev_queue_get_queue_is_empty:
- * @udev_queue: udev queue context
- *
- * Returns: a flag indicating if udev is currently handling events.
- **/
-UDEV_EXPORT int udev_queue_get_queue_is_empty(struct udev_queue *udev_queue)
-{
-	unsigned long long int seqnum_kernel;
-	unsigned long long int seqnum_udev = 0;
-	int queued = 0;
-	int is_empty = 0;
-	FILE *queue_file;
-
-	if (udev_queue == NULL)
-		return -EINVAL;
-	queue_file = open_queue_file(udev_queue, &seqnum_udev);
-	if (queue_file == NULL)
-		return 1;
-
-	for (;;) {
-		unsigned long long int seqnum;
-		ssize_t devpath_len;
-
-		if (udev_queue_read_seqnum(queue_file, &seqnum) < 0)
-			break;
-		devpath_len = udev_queue_skip_devpath(queue_file);
-		if (devpath_len < 0)
-			break;
-
-		if (devpath_len > 0) {
-			queued++;
-			seqnum_udev = seqnum;
-		} else {
-			queued--;
-		}
-	}
-
-	if (queued > 0) {
-		dbg(udev_queue->udev, "queue is not empty\n");
-		goto out;
-	}
-
-	seqnum_kernel = udev_queue_get_kernel_seqnum(udev_queue);
-	if (seqnum_udev < seqnum_kernel) {
-		dbg(udev_queue->udev, "queue is empty but kernel events still pending [%llu]<->[%llu]\n",
-					seqnum_kernel, seqnum_udev);
-		goto out;
-	}
-
-	dbg(udev_queue->udev, "queue is empty\n");
-	is_empty = 1;
-
-out:
-	fclose(queue_file);
-	return is_empty;
-}
-
-/**
- * udev_queue_get_seqnum_sequence_is_finished:
- * @udev_queue: udev queue context
- * @start: first event sequence number
- * @end: last event sequence number
- *
- * Returns: a flag indicating if any of the sequence numbers in the given range is currently active.
- **/
-UDEV_EXPORT int udev_queue_get_seqnum_sequence_is_finished(struct udev_queue *udev_queue,
-					       unsigned long long int start, unsigned long long int end)
-{
-	unsigned long long int seqnum;
-	ssize_t devpath_len;
-	int unfinished;
-	FILE *queue_file;
-
-	if (udev_queue == NULL)
-		return -EINVAL;
-	queue_file = open_queue_file(udev_queue, &seqnum);
-	if (queue_file == NULL)
-		return 1;
-	if (start < seqnum)
-		start = seqnum;
-	if (start > end) {
-		fclose(queue_file);
-		return 1;
-	}
-	if (end - start > INT_MAX - 1) {
-		fclose(queue_file);
-		return -EOVERFLOW;
-	}
-
-	/*
-	 * we might start with 0, and handle the initial seqnum
-	 * only when we find an entry in the queue file
-	 **/
-	unfinished = end - start;
-
-	do {
-		if (udev_queue_read_seqnum(queue_file, &seqnum) < 0)
-			break;
-		devpath_len = udev_queue_skip_devpath(queue_file);
-		if (devpath_len < 0)
-			break;
-
-		/*
-		 * we might start with an empty or re-build queue file, where
-		 * the initial seqnum is not recorded as finished
-		 */
-		if (start == seqnum && devpath_len > 0)
-			unfinished++;
-
-		if (devpath_len == 0) {
-			if (seqnum >= start && seqnum <= end)
-				unfinished--;
-		}
-	} while (unfinished > 0);
-
-	fclose(queue_file);
-
-	return (unfinished == 0);
-}
-
-/**
- * udev_queue_get_seqnum_is_finished:
- * @udev_queue: udev queue context
- * @seqnum: sequence number
- *
- * Returns: a flag indicating if the given sequence number is currently active.
- **/
-UDEV_EXPORT int udev_queue_get_seqnum_is_finished(struct udev_queue *udev_queue, unsigned long long int seqnum)
-{
-	if (!udev_queue_get_seqnum_sequence_is_finished(udev_queue, seqnum, seqnum))
-		return 0;
-
-	dbg(udev_queue->udev, "seqnum: %llu finished\n", seqnum);
-	return 1;
-}
-
-/**
- * udev_queue_get_queued_list_entry:
- * @udev_queue: udev queue context
- *
- * Returns: the first entry of the list of queued events.
- **/
-UDEV_EXPORT struct udev_list_entry *udev_queue_get_queued_list_entry(struct udev_queue *udev_queue)
-{
-	unsigned long long int seqnum;
-	FILE *queue_file;
-
-	if (udev_queue == NULL)
-		return NULL;
-	udev_list_cleanup_entries(udev_queue->udev, &udev_queue->queue_list);
-
-	queue_file = open_queue_file(udev_queue, &seqnum);
-	if (queue_file == NULL)
-		return NULL;
-
-	for (;;) {
-		char syspath[UTIL_PATH_SIZE];
-		char *s;
-		size_t l;
-		ssize_t len;
-		char seqnum_str[32];
-		struct udev_list_entry *list_entry;
-
-		if (udev_queue_read_seqnum(queue_file, &seqnum) < 0)
-			break;
-		snprintf(seqnum_str, sizeof(seqnum_str), "%llu", seqnum);
-
-		s = syspath;
-		l = util_strpcpyl(&s, sizeof(syspath), udev_get_sys_path(udev_queue->udev), NULL);
-		len = udev_queue_read_devpath(queue_file, s, l);
-		if (len < 0)
-			break;
-
-		if (len > 0) {
-			udev_list_entry_add(udev_queue->udev, &udev_queue->queue_list, syspath, seqnum_str, 0);
-		} else {
-			udev_list_entry_foreach(list_entry, udev_list_get_entry(&udev_queue->queue_list)) {
-				if (strcmp(seqnum_str, udev_list_entry_get_value(list_entry)) == 0) {
-					udev_list_entry_delete(list_entry);
-					break;
-				}
-			}
-		}
-	}
-	fclose(queue_file);
-
-	return udev_list_get_entry(&udev_queue->queue_list);
-}
-
-/**
- * udev_queue_get_failed_list_entry:
- * @udev_queue: udev queue context
- *
- * Returns: the first entry of the list of recorded failed events.
- **/
-UDEV_EXPORT struct udev_list_entry *udev_queue_get_failed_list_entry(struct udev_queue *udev_queue)
-{
-	char path[UTIL_PATH_SIZE];
-	DIR *dir;
-	struct dirent *dent;
-
-	if (udev_queue == NULL)
-		return NULL;
-	udev_list_cleanup_entries(udev_queue->udev, &udev_queue->failed_list);
-	util_strscpyl(path, sizeof(path), udev_get_run_path(udev_queue->udev), "/failed", NULL);
-	dir = opendir(path);
-	if (dir == NULL)
-		return NULL;
-	for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
-		char filename[UTIL_PATH_SIZE];
-		char syspath[UTIL_PATH_SIZE];
-		char *s;
-		size_t l;
-		ssize_t len;
-		struct stat statbuf;
-
-		if (dent->d_name[0] == '.')
-			continue;
-		s = syspath;
-		l = util_strpcpyl(&s, sizeof(syspath), udev_get_sys_path(udev_queue->udev), NULL);
-		len = readlinkat(dirfd(dir), dent->d_name, s, l);
-		if (len <= 0 || (size_t)len == l)
-			continue;
-		s[len] = '\0';
-		dbg(udev_queue->udev, "found '%s' [%s]\n", syspath, dent->d_name);
-		util_strscpyl(filename, sizeof(filename), syspath, "/uevent", NULL);
-		if (stat(filename, &statbuf) != 0)
-			continue;
-		udev_list_entry_add(udev_queue->udev, &udev_queue->failed_list, syspath, NULL, 0);
-	}
-	closedir(dir);
-	return udev_list_get_entry(&udev_queue->failed_list);
-}