[PATCH] rename udev_lib to udev_utils and dev_d to udev_multiplex

1 files changed, 244 insertions, 0 deletions

diff --git a/udev_utils.c b/udev_utils.c
new file mode 100644
index 0000000000..bdf0233e3a
--- /dev/null
+++ b/udev_utils.c
@@ -0,0 +1,244 @@
+/*
+ * udev_lib - generic stuff used by udev
+ *
+ * Copyright (C) 2004 Kay Sievers <kay@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.,
+ *	675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sys/utsname.h>
+
+#include "udev.h"
+#include "logging.h"
+#include "udev_utils.h"
+#include "list.h"
+
+
+void udev_set_values(struct udevice *udev, const char* devpath,
+		     const char *subsystem, const char* action)
+{
+	memset(udev, 0x00, sizeof(struct udevice));
+
+	if (devpath)
+		strfieldcpy(udev->devpath, devpath);
+	if (subsystem)
+		strfieldcpy(udev->subsystem, subsystem);
+	if (action)
+		strfieldcpy(udev->action, action);
+
+	if (strcmp(udev->subsystem, "block") == 0)
+		udev->type = 'b';
+	else if (strcmp(udev->subsystem, "net") == 0)
+		udev->type = 'n';
+	else if (strncmp(udev->devpath, "/block/", 7) == 0)
+		udev->type = 'b';
+	else if (strncmp(udev->devpath, "/class/net/", 11) == 0)
+		udev->type = 'n';
+	else if (strncmp(udev->devpath, "/class/", 7) == 0)
+		udev->type = 'c';
+}
+
+int kernel_release_satisfactory(int version, int patchlevel, int sublevel)
+{
+	static int kversion = 0;
+	static int kpatchlevel;
+	static int ksublevel;
+
+	if (kversion == 0) {
+		struct utsname uts;
+		if (uname(&uts) != 0)
+			return -1;
+
+		if (sscanf (uts.release, "%u.%u.%u", &kversion, &kpatchlevel, &ksublevel) != 3) {
+			kversion = 0;
+			return -1;
+		}
+	}
+
+	if (kversion >= version && kpatchlevel >= patchlevel && ksublevel >= sublevel)
+		return 1;
+	else
+		return 0;
+}
+
+int create_path(const char *path)
+{
+	char p[NAME_SIZE];
+	char *pos;
+	struct stat stats;
+
+	strcpy (p, path);
+	pos = strrchr(p, '/');
+	if (pos == p || pos == NULL)
+		return 0;
+
+	while (pos[-1] == '/')
+		pos--;
+
+	pos[0] = '\0';
+
+	dbg("stat '%s'\n", p);
+	if (stat (p, &stats) == 0 && (stats.st_mode & S_IFMT) == S_IFDIR)
+		return 0;
+
+	if (create_path (p) != 0)
+		return -1;
+
+	dbg("mkdir '%s'\n", p);
+	return mkdir(p, 0755);
+}
+
+int file_map(const char *filename, char **buf, size_t *bufsize)
+{
+	struct stat stats;
+	int fd;
+
+	fd = open(filename, O_RDONLY);
+	if (fd < 0) {
+		return -1;
+	}
+
+	if (fstat(fd, &stats) < 0) {
+		close(fd);
+		return -1;
+	}
+
+	*buf = mmap(NULL, stats.st_size, PROT_READ, MAP_SHARED, fd, 0);
+	if (*buf == MAP_FAILED) {
+		close(fd);
+		return -1;
+	}
+	*bufsize = stats.st_size;
+
+	close(fd);
+
+	return 0;
+}
+
+void file_unmap(char *buf, size_t bufsize)
+{
+	munmap(buf, bufsize);
+}
+
+size_t buf_get_line(char *buf, size_t buflen, size_t cur)
+{
+	size_t count = 0;
+
+	for (count = cur; count < buflen && buf[count] != '\n'; count++);
+
+	return count - cur;
+}
+
+void no_trailing_slash(char *path)
+{
+	int len;
+
+	len = strlen(path);
+	if (len > 0 && path[len-1] == '/')
+		path[len-1] = '\0';
+}
+
+struct files {
+	struct list_head list;
+	char name[NAME_SIZE];
+};
+
+/* sort files in lexical order */
+static int file_list_insert(char *filename, struct list_head *file_list)
+{
+	struct files *loop_file;
+	struct files *new_file;
+
+	list_for_each_entry(loop_file, file_list, list) {
+		if (strcmp(loop_file->name, filename) > 0) {
+			break;
+		}
+	}
+
+	new_file = malloc(sizeof(struct files));
+	if (new_file == NULL) {
+		dbg("error malloc");
+		return -ENOMEM;
+	}
+
+	strfieldcpy(new_file->name, filename);
+	list_add_tail(&new_file->list, &loop_file->list);
+	return 0;
+}
+
+/* calls function for every file found in specified directory */
+int call_foreach_file(file_fnct_t fnct, const char *dirname,
+		      const char *suffix, void *data)
+{
+	struct dirent *ent;
+	DIR *dir;
+	char *ext;
+	struct files *loop_file;
+	struct files *tmp_file;
+	LIST_HEAD(file_list);
+
+	dbg("open directory '%s'", dirname);
+	dir = opendir(dirname);
+	if (dir == NULL) {
+		dbg("unable to open '%s'", dirname);
+		return -1;
+	}
+
+	while (1) {
+		ent = readdir(dir);
+		if (ent == NULL || ent->d_name[0] == '\0')
+			break;
+
+		if ((ent->d_name[0] == '.') || (ent->d_name[0] == COMMENT_CHARACTER))
+			continue;
+
+		/* look for file with specified suffix */
+		ext = strrchr(ent->d_name, '.');
+		if (ext == NULL)
+			continue;
+
+		if (strcmp(ext, suffix) != 0)
+			continue;
+
+		dbg("put file '%s/%s' in list", dirname, ent->d_name);
+		file_list_insert(ent->d_name, &file_list);
+	}
+
+	/* call function for every file in the list */
+	list_for_each_entry_safe(loop_file, tmp_file, &file_list, list) {
+		char filename[NAME_SIZE];
+
+		snprintf(filename, NAME_SIZE, "%s/%s", dirname, loop_file->name);
+		filename[NAME_SIZE-1] = '\0';
+
+		fnct(filename, data);
+
+		list_del(&loop_file->list);
+		free(loop_file);
+	}
+
+	closedir(dir);
+	return 0;
+}