delete all Makefiles and move udev source to udev/

1 files changed, 0 insertions, 509 deletions

diff --git a/udev_sysfs.c b/udev_sysfs.c
deleted file mode 100644
index c4cd4ab75d..0000000000
--- a/udev_sysfs.c
+++ /dev/null
@@ -1,509 +0,0 @@
-/*
- * Copyright (C) 2005-2006 Kay Sievers <kay.sievers@vrfy.org>
- *
- *	This program is free software; you can redistribute it and/or modify it
- *	under the terms of the GNU General Public License as published by the
- *	Free Software Foundation version 2 of the License.
- * 
- *	This program is distributed in the hope that it will be useful, but
- *	WITHOUT ANY WARRANTY; without even the implied warranty of
- *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *	General Public License for more details.
- * 
- *	You should have received a copy of the GNU General Public License along
- *	with this program; if not, write to the Free Software Foundation, Inc.,
- *	51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- *
- */
-
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <errno.h>
-#include <sys/stat.h>
-
-#include "udev.h"
-
-char sysfs_path[PATH_SIZE];
-
-/* device cache */
-static LIST_HEAD(dev_list);
-
-/* attribute value cache */
-static LIST_HEAD(attr_list);
-struct sysfs_attr {
-	struct list_head node;
-	char path[PATH_SIZE];
-	char *value;			/* points to value_local if value is cached */
-	char value_local[NAME_SIZE];
-};
-
-int sysfs_init(void)
-{
-	const char *env;
-
-	env = getenv("SYSFS_PATH");
-	if (env) {
-		strlcpy(sysfs_path, env, sizeof(sysfs_path));
-		remove_trailing_chars(sysfs_path, '/');
-	} else
-		strlcpy(sysfs_path, "/sys", sizeof(sysfs_path));
-	dbg("sysfs_path='%s'\n", sysfs_path);
-
-	INIT_LIST_HEAD(&dev_list);
-	INIT_LIST_HEAD(&attr_list);
-	return 0;
-}
-
-void sysfs_cleanup(void)
-{
-	struct sysfs_attr *attr_loop;
-	struct sysfs_attr *attr_temp;
-	struct sysfs_device *dev_loop;
-	struct sysfs_device *dev_temp;
-
-	list_for_each_entry_safe(attr_loop, attr_temp, &attr_list, node) {
-		list_del(&attr_loop->node);
-		free(attr_loop);
-	}
-
-	list_for_each_entry_safe(dev_loop, dev_temp, &dev_list, node) {
-		list_del(&dev_loop->node);
-		free(dev_loop);
-	}
-}
-
-void sysfs_device_set_values(struct sysfs_device *dev, const char *devpath,
-			     const char *subsystem, const char *driver)
-{
-	char *pos;
-
-	strlcpy(dev->devpath, devpath, sizeof(dev->devpath));
-	if (subsystem != NULL)
-		strlcpy(dev->subsystem, subsystem, sizeof(dev->subsystem));
-	if (driver != NULL)
-		strlcpy(dev->driver, driver, sizeof(dev->driver));
-
-	/* set kernel name */
-	pos = strrchr(dev->devpath, '/');
-	if (pos == NULL)
-		return;
-	strlcpy(dev->kernel, &pos[1], sizeof(dev->kernel));
-	dbg("kernel='%s'\n", dev->kernel);
-
-	/* some devices have '!' in their name, change that to '/' */
-	pos = dev->kernel;
-	while (pos[0] != '\0') {
-		if (pos[0] == '!')
-			pos[0] = '/';
-		pos++;
-	}
-
-	/* get kernel number */
-	pos = &dev->kernel[strlen(dev->kernel)];
-	while (isdigit(pos[-1]))
-		pos--;
-	strlcpy(dev->kernel_number, pos, sizeof(dev->kernel_number));
-	dbg("kernel_number='%s'\n", dev->kernel_number);
-}
-
-int sysfs_resolve_link(char *devpath, size_t size)
-{
-	char link_path[PATH_SIZE];
-	char link_target[PATH_SIZE];
-	int len;
-	int i;
-	int back;
-
-	strlcpy(link_path, sysfs_path, sizeof(link_path));
-	strlcat(link_path, devpath, sizeof(link_path));
-	len = readlink(link_path, link_target, sizeof(link_target));
-	if (len <= 0)
-		return -1;
-	link_target[len] = '\0';
-	dbg("path link '%s' points to '%s'\n", devpath, link_target);
-
-	for (back = 0; strncmp(&link_target[back * 3], "../", 3) == 0; back++)
-		;
-	dbg("base '%s', tail '%s', back %i\n", devpath, &link_target[back * 3], back);
-	for (i = 0; i <= back; i++) {
-		char *pos = strrchr(devpath, '/');
-
-		if (pos == NULL)
-			return -1;
-		pos[0] = '\0';
-	}
-	dbg("after moving back '%s'\n", devpath);
-	strlcat(devpath, "/", size);
-	strlcat(devpath, &link_target[back * 3], size);
-	return 0;
-}
-
-struct sysfs_device *sysfs_device_get(const char *devpath)
-{
-	char path[PATH_SIZE];
-	char devpath_real[PATH_SIZE];
-	struct sysfs_device *dev;
-	struct sysfs_device *dev_loop;
-	struct stat statbuf;
-	char link_path[PATH_SIZE];
-	char link_target[PATH_SIZE];
-	int len;
-	char *pos;
-
-	/* we handle only these devpathes */
-	if (devpath != NULL &&
-	    strncmp(devpath, "/devices/", 9) != 0 &&
-	    strncmp(devpath, "/subsystem/", 11) != 0 &&
-	    strncmp(devpath, "/module/", 8) != 0 &&
-	    strncmp(devpath, "/bus/", 5) != 0 &&
-	    strncmp(devpath, "/class/", 7) != 0 &&
-	    strncmp(devpath, "/block/", 7) != 0)
-		return NULL;
-
-	dbg("open '%s'\n", devpath);
-	strlcpy(devpath_real, devpath, sizeof(devpath_real));
-	remove_trailing_chars(devpath_real, '/');
-	if (devpath[0] == '\0' )
-		return NULL;
-
-	/* look for device already in cache (we never put an untranslated path in the cache) */
-	list_for_each_entry(dev_loop, &dev_list, node) {
-		if (strcmp(dev_loop->devpath, devpath_real) == 0) {
-			dbg("found in cache '%s'\n", dev_loop->devpath);
-			return dev_loop;
-		}
-	}
-
-	/* if we got a link, resolve it to the real device */
-	strlcpy(path, sysfs_path, sizeof(path));
-	strlcat(path, devpath_real, sizeof(path));
-	if (lstat(path, &statbuf) != 0) {
-		dbg("stat '%s' failed: %s\n", path, strerror(errno));
-		return NULL;
-	}
-	if (S_ISLNK(statbuf.st_mode)) {
-		if (sysfs_resolve_link(devpath_real, sizeof(devpath_real)) != 0)
-			return NULL;
-
-		/* now look for device in cache after path translation */
-		list_for_each_entry(dev_loop, &dev_list, node) {
-			if (strcmp(dev_loop->devpath, devpath_real) == 0) {
-				dbg("found in cache '%s'\n", dev_loop->devpath);
-				return dev_loop;
-			}
-		}
-	}
-
-	/* it is a new device */
-	dbg("new uncached device '%s'\n", devpath_real);
-	dev = malloc(sizeof(struct sysfs_device));
-	if (dev == NULL)
-		return NULL;
-	memset(dev, 0x00, sizeof(struct sysfs_device));
-
-	sysfs_device_set_values(dev, devpath_real, NULL, NULL);
-
-	/* get subsystem name */
-	strlcpy(link_path, sysfs_path, sizeof(link_path));
-	strlcat(link_path, dev->devpath, sizeof(link_path));
-	strlcat(link_path, "/subsystem", sizeof(link_path));
-	len = readlink(link_path, link_target, sizeof(link_target));
-	if (len > 0) {
-		/* get subsystem from "subsystem" link */
-		link_target[len] = '\0';
-		dbg("subsystem link '%s' points to '%s'\n", link_path, link_target);
-		pos = strrchr(link_target, '/');
-		if (pos != NULL)
-			strlcpy(dev->subsystem, &pos[1], sizeof(dev->subsystem));
-	} else if (strstr(dev->devpath, "/drivers/") != NULL) {
-		strlcpy(dev->subsystem, "drivers", sizeof(dev->subsystem));
-	} else if (strncmp(dev->devpath, "/module/", 8) == 0) {
-		strlcpy(dev->subsystem, "module", sizeof(dev->subsystem));
-	} else if (strncmp(dev->devpath, "/subsystem/", 11) == 0) {
-		pos = strrchr(dev->devpath, '/');
-		if (pos == &dev->devpath[10])
-			strlcpy(dev->subsystem, "subsystem", sizeof(dev->subsystem));
-	} else if (strncmp(dev->devpath, "/class/", 7) == 0) {
-		pos = strrchr(dev->devpath, '/');
-		if (pos == &dev->devpath[6])
-			strlcpy(dev->subsystem, "subsystem", sizeof(dev->subsystem));
-	} else if (strncmp(dev->devpath, "/bus/", 5) == 0) {
-		pos = strrchr(dev->devpath, '/');
-		if (pos == &dev->devpath[4])
-			strlcpy(dev->subsystem, "subsystem", sizeof(dev->subsystem));
-	}
-
-	/* get driver name */
-	strlcpy(link_path, sysfs_path, sizeof(link_path));
-	strlcat(link_path, dev->devpath, sizeof(link_path));
-	strlcat(link_path, "/driver", sizeof(link_path));
-	len = readlink(link_path, link_target, sizeof(link_target));
-	if (len > 0) {
-		link_target[len] = '\0';
-		dbg("driver link '%s' points to '%s'\n", link_path, link_target);
-		pos = strrchr(link_target, '/');
-		if (pos != NULL)
-			strlcpy(dev->driver, &pos[1], sizeof(dev->driver));
-	}
-
-	dbg("add to cache 'devpath=%s', subsystem='%s', driver='%s'\n", dev->devpath, dev->subsystem, dev->driver);
-	list_add(&dev->node, &dev_list);
-
-	return dev;
-}
-
-struct sysfs_device *sysfs_device_get_parent(struct sysfs_device *dev)
-{
-	char parent_devpath[PATH_SIZE];
-	char *pos;
-
-	dbg("open '%s'\n", dev->devpath);
-
-	/* look if we already know the parent */
-	if (dev->parent != NULL)
-		return dev->parent;
-
-	strlcpy(parent_devpath, dev->devpath, sizeof(parent_devpath));
-	dbg("'%s'\n", parent_devpath);
-
-	/* strip last element */
-	pos = strrchr(parent_devpath, '/');
-	if (pos == NULL || pos == parent_devpath)
-		return NULL;
-	pos[0] = '\0';
-
-	if (strncmp(parent_devpath, "/class", 6) == 0) {
-		pos = strrchr(parent_devpath, '/');
-		if (pos == &parent_devpath[6] || pos == parent_devpath) {
-			dbg("/class top level, look for device link\n");
-			goto device_link;
-		}
-	}
-	if (strcmp(parent_devpath, "/block") == 0) {
-		dbg("/block top level, look for device link\n");
-		goto device_link;
-	}
-
-	/* are we at the top level? */
-	pos = strrchr(parent_devpath, '/');
-	if (pos == NULL || pos == parent_devpath)
-		return NULL;
-
-	/* get parent and remember it */
-	dev->parent = sysfs_device_get(parent_devpath);
-	return dev->parent;
-
-device_link:
-	strlcpy(parent_devpath, dev->devpath, sizeof(parent_devpath));
-	strlcat(parent_devpath, "/device", sizeof(parent_devpath));
-	if (sysfs_resolve_link(parent_devpath, sizeof(parent_devpath)) != 0)
-		return NULL;
-
-	/* get parent and remember it */
-	dev->parent = sysfs_device_get(parent_devpath);
-	return dev->parent;
-}
-
-struct sysfs_device *sysfs_device_get_parent_with_subsystem(struct sysfs_device *dev, const char *subsystem)
-{
-	struct sysfs_device *dev_parent;
-
-	dev_parent = sysfs_device_get_parent(dev);
-	while (dev_parent != NULL) {
-		if (strcmp(dev_parent->subsystem, subsystem) == 0)
-			return dev_parent;
-		dev_parent = sysfs_device_get_parent(dev_parent);
-	}
-	return NULL;
-}
-
-char *sysfs_attr_get_value(const char *devpath, const char *attr_name)
-{
-	char path_full[PATH_SIZE];
-	const char *path;
-	char value[NAME_SIZE];
-	struct sysfs_attr *attr_loop;
-	struct sysfs_attr *attr;
-	struct stat statbuf;
-	int fd;
-	ssize_t size;
-	size_t sysfs_len;
-
-	dbg("open '%s'/'%s'\n", devpath, attr_name);
-	sysfs_len = strlcpy(path_full, sysfs_path, sizeof(path_full));
-	if(sysfs_len >= sizeof(path_full))
-		sysfs_len = sizeof(path_full) - 1;
-	path = &path_full[sysfs_len];
-	strlcat(path_full, devpath, sizeof(path_full));
-	strlcat(path_full, "/", sizeof(path_full));
-	strlcat(path_full, attr_name, sizeof(path_full));
-
-	/* look for attribute in cache */
-	list_for_each_entry(attr_loop, &attr_list, node) {
-		if (strcmp(attr_loop->path, path) == 0) {
-			dbg("found in cache '%s'\n", attr_loop->path);
-			return attr_loop->value;
-		}
-	}
-
-	/* store attribute in cache (also negatives are kept in cache) */
-	dbg("new uncached attribute '%s'\n", path_full);
-	attr = malloc(sizeof(struct sysfs_attr));
-	if (attr == NULL)
-		return NULL;
-	memset(attr, 0x00, sizeof(struct sysfs_attr));
-	strlcpy(attr->path, path, sizeof(attr->path));
-	dbg("add to cache '%s'\n", path_full);
-	list_add(&attr->node, &attr_list);
-
-	if (lstat(path_full, &statbuf) != 0) {
-		dbg("stat '%s' failed: %s\n", path_full, strerror(errno));
-		goto out;
-	}
-
-	if (S_ISLNK(statbuf.st_mode)) {
-		/* links return the last element of the target path */
-		char link_target[PATH_SIZE];
-		int len;
-		const char *pos;
-
-		len = readlink(path_full, link_target, sizeof(link_target));
-		if (len > 0) {
-			link_target[len] = '\0';
-			pos = strrchr(link_target, '/');
-			if (pos != NULL) {
-				dbg("cache '%s' with link value '%s'\n", path_full, value);
-				strlcpy(attr->value_local, &pos[1], sizeof(attr->value_local));
-				attr->value = attr->value_local;
-			}
-		}
-		goto out;
-	}
-
-	/* skip directories */
-	if (S_ISDIR(statbuf.st_mode))
-		goto out;
-
-	/* skip non-readable files */
-	if ((statbuf.st_mode & S_IRUSR) == 0)
-		goto out;
-
-	/* read attribute value */
-	fd = open(path_full, O_RDONLY);
-	if (fd < 0) {
-		dbg("attribute '%s' can not be opened\n", path_full);
-		goto out;
-	}
-	size = read(fd, value, sizeof(value));
-	close(fd);
-	if (size < 0)
-		goto out;
-	if (size == sizeof(value))
-		goto out;
-
-	/* got a valid value, store and return it */
-	value[size] = '\0';
-	remove_trailing_chars(value, '\n');
-	dbg("cache '%s' with attribute value '%s'\n", path_full, value);
-	strlcpy(attr->value_local, value, sizeof(attr->value_local));
-	attr->value = attr->value_local;
-
-out:
-	return attr->value;
-}
-
-int sysfs_lookup_devpath_by_subsys_id(char *devpath_full, size_t len, const char *subsystem, const char *id)
-{
-	size_t sysfs_len;
-	char path_full[PATH_SIZE];
-	char *path;
-	struct stat statbuf;
-
-	sysfs_len = strlcpy(path_full, sysfs_path, sizeof(path_full));
-	path = &path_full[sysfs_len];
-
-	if (strcmp(subsystem, "subsystem") == 0) {
-		strlcpy(path, "/subsystem/", sizeof(path_full) - sysfs_len);
-		strlcat(path, id, sizeof(path_full) - sysfs_len);
-		if (stat(path_full, &statbuf) == 0)
-			goto found;
-
-		strlcpy(path, "/bus/", sizeof(path_full) - sysfs_len);
-		strlcat(path, id, sizeof(path_full) - sysfs_len);
-		if (stat(path_full, &statbuf) == 0)
-			goto found;
-		goto out;
-
-		strlcpy(path, "/class/", sizeof(path_full) - sysfs_len);
-		strlcat(path, id, sizeof(path_full) - sysfs_len);
-		if (stat(path_full, &statbuf) == 0)
-			goto found;
-	}
-
-	if (strcmp(subsystem, "module") == 0) {
-		strlcpy(path, "/module/", sizeof(path_full) - sysfs_len);
-		strlcat(path, id, sizeof(path_full) - sysfs_len);
-		if (stat(path_full, &statbuf) == 0)
-			goto found;
-		goto out;
-	}
-
-	if (strcmp(subsystem, "drivers") == 0) {
-		char subsys[NAME_SIZE];
-		char *driver;
-
-		strlcpy(subsys, id, sizeof(subsys));
-		driver = strchr(subsys, ':');
-		if (driver != NULL) {
-			driver[0] = '\0';
-			driver = &driver[1];
-			strlcpy(path, "/subsystem/", sizeof(path_full) - sysfs_len);
-			strlcat(path, subsys, sizeof(path_full) - sysfs_len);
-			strlcat(path, "/drivers/", sizeof(path_full) - sysfs_len);
-			strlcat(path, driver, sizeof(path_full) - sysfs_len);
-			if (stat(path_full, &statbuf) == 0)
-				goto found;
-
-			strlcpy(path, "/bus/", sizeof(path_full) - sysfs_len);
-			strlcat(path, subsys, sizeof(path_full) - sysfs_len);
-			strlcat(path, "/drivers/", sizeof(path_full) - sysfs_len);
-			strlcat(path, driver, sizeof(path_full) - sysfs_len);
-			if (stat(path_full, &statbuf) == 0)
-				goto found;
-		}
-		goto out;
-	}
-
-	strlcpy(path, "/subsystem/", sizeof(path_full) - sysfs_len);
-	strlcat(path, subsystem, sizeof(path_full) - sysfs_len);
-	strlcat(path, "/devices/", sizeof(path_full) - sysfs_len);
-	strlcat(path, id, sizeof(path_full) - sysfs_len);
-	if (stat(path_full, &statbuf) == 0)
-		goto found;
-
-	strlcpy(path, "/bus/", sizeof(path_full) - sysfs_len);
-	strlcat(path, subsystem, sizeof(path_full) - sysfs_len);
-	strlcat(path, "/devices/", sizeof(path_full) - sysfs_len);
-	strlcat(path, id, sizeof(path_full) - sysfs_len);
-	if (stat(path_full, &statbuf) == 0)
-		goto found;
-
-	strlcpy(path, "/class/", sizeof(path_full) - sysfs_len);
-	strlcat(path, subsystem, sizeof(path_full) - sysfs_len);
-	strlcat(path, "/", sizeof(path_full) - sysfs_len);
-	strlcat(path, id, sizeof(path_full) - sysfs_len);
-	if (stat(path_full, &statbuf) == 0)
-		goto found;
-out:
-	return 0;
-found:
-	if (S_ISLNK(statbuf.st_mode))
-		sysfs_resolve_link(path, sizeof(path_full) - sysfs_len);
-	strlcpy(devpath_full, path, len);
-	return 1;
-}