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-rw-r--r--src/libudev/utf8.c249
1 files changed, 0 insertions, 249 deletions
diff --git a/src/libudev/utf8.c b/src/libudev/utf8.c
deleted file mode 100644
index 1044fb6489..0000000000
--- a/src/libudev/utf8.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/***
- This file is part of udev, forked from systemd.
-
- Copyright 2008-2011 Kay Sievers
- Copyright 2012 Lennart Poettering
-
- systemd 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.
-
- systemd 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-/* Parts of this file are based on the GLIB utf8 validation functions. The
- * original license text follows. */
-
-/* gutf8.c - Operations on UTF-8 strings.
- *
- * Copyright (C) 1999 Tom Tromey
- * Copyright (C) 2000 Red Hat, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <errno.h>
-#include <stdlib.h>
-#include <inttypes.h>
-#include <string.h>
-#include <stdbool.h>
-
-#include "utf8.h"
-#include "util.h"
-
-static inline bool is_unicode_valid(uint32_t ch) {
-
- if (ch >= 0x110000) /* End of unicode space */
- return false;
- if ((ch & 0xFFFFF800) == 0xD800) /* Reserved area for UTF-16 */
- return false;
- if ((ch >= 0xFDD0) && (ch <= 0xFDEF)) /* Reserved */
- return false;
- if ((ch & 0xFFFE) == 0xFFFE) /* BOM (Byte Order Mark) */
- return false;
-
- return true;
-}
-
-static bool is_unicode_control(uint32_t ch) {
-
- /*
- 0 to ' '-1 is the C0 range.
- DEL=0x7F, and DEL+1 to 0x9F is C1 range.
- '\t' is in C0 range, but more or less harmless and commonly used.
- */
-
- return (ch < ' ' && ch != '\t' && ch != '\n') ||
- (0x7F <= ch && ch <= 0x9F);
-}
-
-/* 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 */
-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;
-}
-
-bool utf8_is_printable(const char* str, size_t length) {
- const uint8_t *p;
-
- assert(str);
-
- for (p = (const uint8_t*) str; length;) {
- int encoded_len = utf8_encoded_valid_unichar((const char *)p);
- int val = utf8_encoded_to_unichar((const char*)p);
-
- if (encoded_len < 0 || val < 0 || is_unicode_control(val))
- return false;
-
- length -= encoded_len;
- p += encoded_len;
- }
-
- return true;
-}
-
-char *ascii_is_valid(const char *str) {
- const char *p;
-
- assert(str);
-
- for (p = str; *p; p++)
- if ((unsigned char) *p >= 128)
- return NULL;
-
- return (char*) str;
-}
-
-char *utf16_to_utf8(const void *s, size_t length) {
- char *r;
- const uint8_t *f;
- uint8_t *t;
-
- r = new(char, (length*3+1)/2 + 1);
- if (!r)
- return NULL;
-
- t = (uint8_t*) r;
-
- for (f = s; f < (const uint8_t*) s + length; f += 2) {
- uint16_t c;
-
- c = (f[1] << 8) | f[0];
-
- if (c == 0) {
- *t = 0;
- return r;
- } else if (c < 0x80) {
- *(t++) = (uint8_t) c;
- } else if (c < 0x800) {
- *(t++) = (uint8_t) (0xc0 | (c >> 6));
- *(t++) = (uint8_t) (0x80 | (c & 0x3f));
- } else {
- *(t++) = (uint8_t) (0xe0 | (c >> 12));
- *(t++) = (uint8_t) (0x80 | ((c >> 6) & 0x3f));
- *(t++) = (uint8_t) (0x80 | (c & 0x3f));
- }
- }
-
- *t = 0;
-
- return r;
-}
-
-/* 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;
-}
-
-/* validate one encoded unicode char and return its length */
-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 (!is_unicode_valid(unichar))
- return -1;
-
- return len;
-}
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