libudev: move to top-level directory

1 files changed, 0 insertions, 502 deletions

diff --git a/udev/lib/libudev-util.c b/udev/lib/libudev-util.c
deleted file mode 100644
index dcc4a0fd16..0000000000
--- a/udev/lib/libudev-util.c
+++ /dev/null
@@ -1,502 +0,0 @@
-/*
- * libudev - interface to udev device information
- *
- * Copyright (C) 2008-2009 Kay Sievers <kay.sievers@vrfy.org>
- *
- * 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 <ctype.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-
-#include "libudev.h"
-#include "libudev-private.h"
-
-static ssize_t get_sys_link(struct udev *udev, const char *slink, const char *syspath, char *value, size_t size)
-{
-	char path[UTIL_PATH_SIZE];
-	ssize_t len;
-	const char *pos;
-
-	util_strscpyl(path, sizeof(path), syspath, "/", slink, NULL);
-	len = readlink(path, path, sizeof(path));
-	if (len < 0 || len >= (ssize_t) sizeof(path))
-		return -1;
-	path[len] = '\0';
-	pos = strrchr(path, '/');
-	if (pos == NULL)
-		return -1;
-	pos = &pos[1];
-	dbg(udev, "resolved link to: '%s'\n", pos);
-	return util_strscpy(value, size, pos);
-}
-
-ssize_t util_get_sys_subsystem(struct udev *udev, const char *syspath, char *subsystem, size_t size)
-{
-	return get_sys_link(udev, "subsystem", syspath, subsystem, size);
-}
-
-ssize_t util_get_sys_driver(struct udev *udev, const char *syspath, char *driver, size_t size)
-{
-	return get_sys_link(udev, "driver", syspath, driver, size);
-}
-
-int util_resolve_sys_link(struct udev *udev, char *syspath, size_t size)
-{
-	char link_target[UTIL_PATH_SIZE];
-
-	int len;
-	int i;
-	int back;
-	char *base;
-
-	len = readlink(syspath, link_target, sizeof(link_target));
-	if (len <= 0)
-		return -1;
-	link_target[len] = '\0';
-	dbg(udev, "path link '%s' points to '%s'\n", syspath, link_target);
-
-	for (back = 0; strncmp(&link_target[back * 3], "../", 3) == 0; back++)
-		;
-	dbg(udev, "base '%s', tail '%s', back %i\n", syspath, &link_target[back * 3], back);
-	for (i = 0; i <= back; i++) {
-		base = strrchr(syspath, '/');
-		if (base == NULL)
-			return -1;
-		base[0] = '\0';
-	}
-	dbg(udev, "after moving back '%s'\n", syspath);
-	util_strscpyl(base, size - (base - syspath), "/", &link_target[back * 3], NULL);
-	return 0;
-}
-
-int util_log_priority(const char *priority)
-{
-	char *endptr;
-	int prio;
-
-	prio = strtol(priority, &endptr, 10);
-	if (endptr[0] == '\0')
-		return prio;
-	if (strncmp(priority, "err", 3) == 0)
-		return LOG_ERR;
-	if (strcmp(priority, "info") == 0)
-		return LOG_INFO;
-	if (strcmp(priority, "debug") == 0)
-		return LOG_DEBUG;
-	return 0;
-}
-
-size_t util_path_encode(const char *src, char *dest, size_t size)
-{
-	size_t i, j;
-
-	for (i = 0, j = 0; src[i] != '\0'; i++) {
-		if (src[i] == '/') {
-			if (j+4 >= size) {
-				j = 0;
-				break;
-			}
-			memcpy(&dest[j], "\\x2f", 4);
-			j += 4;
-		} else if (src[i] == '\\') {
-			if (j+4 >= size) {
-				j = 0;
-				break;
-			}
-			memcpy(&dest[j], "\\x5c", 4);
-			j += 4;
-		} else {
-			if (j+1 >= size) {
-				j = 0;
-				break;
-			}
-			dest[j] = src[i];
-			j++;
-		}
-	}
-	dest[j] = '\0';
-	return j;
-}
-
-size_t util_path_decode(char *s)
-{
-	size_t i, j;
-
-	for (i = 0, j = 0; s[i] != '\0'; j++) {
-		if (memcmp(&s[i], "\\x2f", 4) == 0) {
-			s[j] = '/';
-			i += 4;
-		} else if (memcmp(&s[i], "\\x5c", 4) == 0) {
-			s[j] = '\\';
-			i += 4;
-		} else {
-			s[j] = s[i];
-			i++;
-		}
-	}
-	s[j] = '\0';
-	return j;
-}
-
-void util_remove_trailing_chars(char *path, char c)
-{
-	size_t len;
-
-	if (path == NULL)
-		return;
-	len = strlen(path);
-	while (len > 0 && path[len-1] == c)
-		path[--len] = '\0';
-}
-
-/*
- * Concatenates strings. In any case, terminates in _all_ cases with '\0'
- * and moves the @dest pointer forward to the added '\0'. Returns the
- * remaining size, and 0 if the string was truncated.
- */
-size_t util_strpcpy(char **dest, size_t size, const char *src)
-{
-	size_t len;
-
-	len = strlen(src);
-	if (len >= size) {
-		if (size > 1)
-			*dest = mempcpy(*dest, src, size-1);
-		size = 0;
-		*dest[0] = '\0';
-	} else {
-		if (len > 0) {
-			*dest = mempcpy(*dest, src, len);
-			size -= len;
-		}
-		*dest[0] = '\0';
-	}
-	return size;
-}
-
-/* concatenates list of strings, moves dest forward */
-size_t util_strpcpyl(char **dest, size_t size, const char *src, ...)
-{
-	va_list va;
-
-	va_start(va, src);
-	do {
-		size = util_strpcpy(dest, size, src);
-		src = va_arg(va, char *);
-	} while (src != NULL);
-	va_end(va);
-
-	return size;
-}
-
-/* copies string */
-size_t util_strscpy(char *dest, size_t size, const char *src)
-{
-	char *s;
-
-	s = dest;
-	return util_strpcpy(&s, size, src);
-}
-
-/* concatenates list of strings */
-size_t util_strscpyl(char *dest, size_t size, const char *src, ...)
-{
-	va_list va;
-	char *s;
-
-	va_start(va, src);
-	s = dest;
-	do {
-		size = util_strpcpy(&s, size, src);
-		src = va_arg(va, char *);
-	} while (src != NULL);
-	va_end(va);
-
-	return size;
-}
-
-/* count of characters used to encode one unicode char */
-static int utf8_encoded_expected_len(const char *str)
-{
-	unsigned char c = (unsigned char)str[0];
-
-	if (c < 0x80)
-		return 1;
-	if ((c & 0xe0) == 0xc0)
-		return 2;
-	if ((c & 0xf0) == 0xe0)
-		return 3;
-	if ((c & 0xf8) == 0xf0)
-		return 4;
-	if ((c & 0xfc) == 0xf8)
-		return 5;
-	if ((c & 0xfe) == 0xfc)
-		return 6;
-	return 0;
-}
-
-/* decode one unicode char */
-static int utf8_encoded_to_unichar(const char *str)
-{
-	int unichar;
-	int len;
-	int i;
-
-	len = utf8_encoded_expected_len(str);
-	switch (len) {
-	case 1:
-		return (int)str[0];
-	case 2:
-		unichar = str[0] & 0x1f;
-		break;
-	case 3:
-		unichar = (int)str[0] & 0x0f;
-		break;
-	case 4:
-		unichar = (int)str[0] & 0x07;
-		break;
-	case 5:
-		unichar = (int)str[0] & 0x03;
-		break;
-	case 6:
-		unichar = (int)str[0] & 0x01;
-		break;
-	default:
-		return -1;
-	}
-
-	for (i = 1; i < len; i++) {
-		if (((int)str[i] & 0xc0) != 0x80)
-			return -1;
-		unichar <<= 6;
-		unichar |= (int)str[i] & 0x3f;
-	}
-
-	return unichar;
-}
-
-/* expected size used to encode one unicode char */
-static int utf8_unichar_to_encoded_len(int unichar)
-{
-	if (unichar < 0x80)
-		return 1;
-	if (unichar < 0x800)
-		return 2;
-	if (unichar < 0x10000)
-		return 3;
-	if (unichar < 0x200000)
-		return 4;
-	if (unichar < 0x4000000)
-		return 5;
-	return 6;
-}
-
-/* check if unicode char has a valid numeric range */
-static int utf8_unichar_valid_range(int unichar)
-{
-	if (unichar > 0x10ffff)
-		return 0;
-	if ((unichar & 0xfffff800) == 0xd800)
-		return 0;
-	if ((unichar > 0xfdcf) && (unichar < 0xfdf0))
-		return 0;
-	if ((unichar & 0xffff) == 0xffff)
-		return 0;
-	return 1;
-}
-
-/* validate one encoded unicode char and return its length */
-static int utf8_encoded_valid_unichar(const char *str)
-{
-	int len;
-	int unichar;
-	int i;
-
-	len = utf8_encoded_expected_len(str);
-	if (len == 0)
-		return -1;
-
-	/* ascii is valid */
-	if (len == 1)
-		return 1;
-
-	/* check if expected encoded chars are available */
-	for (i = 0; i < len; i++)
-		if ((str[i] & 0x80) != 0x80)
-			return -1;
-
-	unichar = utf8_encoded_to_unichar(str);
-
-	/* check if encoded length matches encoded value */
-	if (utf8_unichar_to_encoded_len(unichar) != len)
-		return -1;
-
-	/* check if value has valid range */
-	if (!utf8_unichar_valid_range(unichar))
-		return -1;
-
-	return len;
-}
-
-int udev_util_replace_whitespace(const char *str, char *to, size_t len)
-{
-	size_t i, j;
-
-	/* strip trailing whitespace */
-	len = strnlen(str, len);
-	while (len && isspace(str[len-1]))
-		len--;
-
-	/* strip leading whitespace */
-	i = 0;
-	while (isspace(str[i]) && (i < len))
-		i++;
-
-	j = 0;
-	while (i < len) {
-		/* substitute multiple whitespace with a single '_' */
-		if (isspace(str[i])) {
-			while (isspace(str[i]))
-				i++;
-			to[j++] = '_';
-		}
-		to[j++] = str[i++];
-	}
-	to[j] = '\0';
-	return 0;
-}
-
-static int is_whitelisted(char c, const char *white)
-{
-	if ((c >= '0' && c <= '9') ||
-	    (c >= 'A' && c <= 'Z') ||
-	    (c >= 'a' && c <= 'z') ||
-	    strchr("#+-.:=@_", c) != NULL ||
-	    (white != NULL && strchr(white, c) != NULL))
-		return 1;
-	return 0;
-}
-
-/* allow chars in whitelist, plain ascii, hex-escaping and valid utf8 */
-int udev_util_replace_chars(char *str, const char *white)
-{
-	size_t i = 0;
-	int replaced = 0;
-
-	while (str[i] != '\0') {
-		int len;
-
-		if (is_whitelisted(str[i], white)) {
-			i++;
-			continue;
-		}
-
-		/* accept hex encoding */
-		if (str[i] == '\\' && str[i+1] == 'x') {
-			i += 2;
-			continue;
-		}
-
-		/* accept valid utf8 */
-		len = utf8_encoded_valid_unichar(&str[i]);
-		if (len > 1) {
-			i += len;
-			continue;
-		}
-
-		/* if space is allowed, replace whitespace with ordinary space */
-		if (isspace(str[i]) && white != NULL && strchr(white, ' ') != NULL) {
-			str[i] = ' ';
-			i++;
-			replaced++;
-			continue;
-		}
-
-		/* everything else is replaced with '_' */
-		str[i] = '_';
-		i++;
-		replaced++;
-	}
-	return replaced;
-}
-
-/**
- * util_encode_string:
- * @str: input string to be encoded
- * @str_enc: output string to store the encoded input string
- * @len: maximum size of the output string, which may be
- *       four times as long as the input string
- *
- * Encode all potentially unsafe characters of a string to the
- * corresponding hex value prefixed by '\x'.
- *
- * Returns: 0 if the entire string was copied, non-zero otherwise.
- **/
-int udev_util_encode_string(const char *str, char *str_enc, size_t len)
-{
-	size_t i, j;
-
-	if (str == NULL || str_enc == NULL || len == 0)
-		return -1;
-
-	str_enc[0] = '\0';
-	for (i = 0, j = 0; str[i] != '\0'; i++) {
-		int seqlen;
-
-		seqlen = utf8_encoded_valid_unichar(&str[i]);
-		if (seqlen > 1) {
-			memcpy(&str_enc[j], &str[i], seqlen);
-			j += seqlen;
-			i += (seqlen-1);
-		} else if (str[i] == '\\' || !is_whitelisted(str[i], NULL)) {
-			sprintf(&str_enc[j], "\\x%02x", (unsigned char) str[i]);
-			j += 4;
-		} else {
-			str_enc[j] = str[i];
-			j++;
-		}
-		if (j+3 >= len)
-			goto err;
-	}
-	str_enc[j] = '\0';
-	return 0;
-err:
-	return -1;
-}
-
-void util_set_fd_cloexec(int fd)
-{
-	int flags;
-
-	flags = fcntl(fd, F_GETFD);
-	if (flags < 0)
-		flags = FD_CLOEXEC;
-	else
-		flags |= FD_CLOEXEC;
-	fcntl(fd, F_SETFD, flags);
-}
-
-unsigned int util_string_hash32(const char *str)
-{
-	unsigned int hash = 0;
-
-	while (str[0] != '\0') {
-		hash += str[0] << 4;
-		hash += str[0] >> 4;
-		hash *= 11;
-		str++;
-	}
-	return hash;
-}