*
* Copyright (C) 2005-2007 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 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, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE 1
#endif
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
#include "libvolume_id.h"
-#include "util.h"
+#include "libvolume_id-private.h"
+
+/* 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;
+}
-void volume_id_set_unicode16(char *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count)
+/* check if unicode char has a valid numeric range */
+static int utf8_unichar_valid_range(int unichar)
{
- unsigned int i, j;
+ 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 */
+int volume_id_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;
+}
+
+size_t volume_id_set_unicode16(uint8_t *str, size_t len, const uint8_t *buf, enum endian endianess, size_t count)
+{
+ size_t i, j;
uint16_t c;
j = 0;
}
}
str[j] = '\0';
+ return j;
}
static char *usage_to_string(enum volume_id_usage usage_id)
void volume_id_set_label_raw(struct volume_id *id, const uint8_t *buf, size_t count)
{
+ if (count > sizeof(id->label_raw))
+ count = sizeof(id->label_raw);
+
memcpy(id->label_raw, buf, count);
id->label_raw_len = count;
}
void volume_id_set_label_string(struct volume_id *id, const uint8_t *buf, size_t count)
{
- unsigned int i;
+ size_t i;
+
+ if (count >= sizeof(id->label))
+ count = sizeof(id->label)-1;
memcpy(id->label, buf, count);
+ id->label[count] = '\0';
/* remove trailing whitespace */
i = strnlen(id->label, count);
void volume_id_set_label_unicode16(struct volume_id *id, const uint8_t *buf, enum endian endianess, size_t count)
{
- volume_id_set_unicode16(id->label, sizeof(id->label), buf, endianess, count);
+ if (count >= sizeof(id->label))
+ count = sizeof(id->label)-1;
+
+ volume_id_set_unicode16((uint8_t *)id->label, sizeof(id->label), buf, endianess, count);
}
void volume_id_set_uuid(struct volume_id *id, const uint8_t *buf, size_t len, enum uuid_format format)
count = 4;
break;
case UUID_64BIT_LE:
- case UUID_64BIT_BE:
count = 8;
break;
case UUID_DCE:
count = 16;
break;
- case UUID_FOURINT:
+ case UUID_MD:
count = 35;
break;
+ case UUID_LVM:
+ count = 32;
+ break;
}
memcpy(id->uuid_raw, buf, count);
id->uuid_raw_len = count;
buf[7], buf[6], buf[5], buf[4],
buf[3], buf[2], buf[1], buf[0]);
break;
- case UUID_64BIT_BE:
- sprintf(id->uuid,"%02X%02X%02X%02X%02X%02X%02X%02X",
- buf[0], buf[1], buf[2], buf[3],
- buf[4], buf[5], buf[6], buf[7]);
- break;
case UUID_DCE:
sprintf(id->uuid,
"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
memcpy(id->uuid, buf, count);
id->uuid[count] = '\0';
break;
- case UUID_FOURINT:
+ case UUID_MD:
sprintf(id->uuid,
"%02x%02x%02x%02x:%02x%02x%02x%02x:%02x%02x%02x%02x:%02x%02x%02x%02x",
buf[0], buf[1], buf[2], buf[3],
buf[8], buf[9], buf[10], buf[11],
buf[12], buf[13], buf[14],buf[15]);
break;
+ case UUID_LVM:
+ sprintf(id->uuid,
+ "%c%c%c%c%c%c-%c%c%c%c-%c%c%c%c-%c%c%c%c-%c%c%c%c-%c%c%c%c-%c%c%c%c%c%c",
+ buf[0], buf[1], buf[2], buf[3], buf[4], buf[5],
+ buf[6], buf[7], buf[8], buf[9],
+ buf[10], buf[11], buf[12], buf[13],
+ buf[14], buf[15], buf[16], buf[17],
+ buf[18], buf[19], buf[20], buf[21],
+ buf[22], buf[23], buf[24], buf[25],
+ buf[26], buf[27], buf[28], buf[29], buf[30], buf[31]);
+ break;
}
}
{
ssize_t buf_len;
- info("get buffer off 0x%llx(%llu), len 0x%zx", (unsigned long long) off, (unsigned long long) off, len);
+ info("get buffer off 0x%" PRIx64 "(%" PRIu64 "), len 0x%zx\n", off, off, len);
/* check if requested area fits in superblock buffer */
if (off + len <= SB_BUFFER_SIZE) {
if (id->sbbuf == NULL) {
id->sbbuf = malloc(SB_BUFFER_SIZE);
if (id->sbbuf == NULL) {
- dbg("error malloc");
+ dbg("error malloc\n");
return NULL;
}
}
/* check if we need to read */
if ((off + len) > id->sbbuf_len) {
- info("read sbbuf len:0x%llx", (unsigned long long) (off + len));
+ info("read sbbuf len:0x%" PRIx64 "\n", (off + len));
if (lseek(id->fd, 0, SEEK_SET) < 0) {
- dbg("lseek failed (%s)", strerror(errno));
+ dbg("lseek failed (%s)\n", strerror(errno));
return NULL;
}
buf_len = read(id->fd, id->sbbuf, off + len);
if (buf_len < 0) {
- dbg("read failed (%s)", strerror(errno));
+ dbg("read failed (%s)\n", strerror(errno));
return NULL;
}
- dbg("got 0x%zx (%zi) bytes", buf_len, buf_len);
+ dbg("got 0x%zx (%zi) bytes\n", buf_len, buf_len);
id->sbbuf_len = buf_len;
if ((size_t)buf_len < off + len) {
- dbg("requested 0x%zx bytes, got only 0x%zx bytes", len, buf_len);
+ dbg("requested 0x%zx bytes, got only 0x%zx bytes\n", len, buf_len);
return NULL;
}
}
return &(id->sbbuf[off]);
} else {
if (len > SEEK_BUFFER_SIZE) {
- dbg("seek buffer too small %d", SEEK_BUFFER_SIZE);
+ dbg("seek buffer too small %d\n", SEEK_BUFFER_SIZE);
return NULL;
}
if (id->seekbuf == NULL) {
id->seekbuf = malloc(SEEK_BUFFER_SIZE);
if (id->seekbuf == NULL) {
- dbg("error malloc");
+ dbg("error malloc\n");
return NULL;
}
}
/* check if we need to read */
if ((off < id->seekbuf_off) || ((off + len) > (id->seekbuf_off + id->seekbuf_len))) {
- info("read seekbuf off:0x%llx len:0x%zx", (unsigned long long) off, len);
+ info("read seekbuf off:0x%" PRIx64 " len:0x%zx\n", off, len);
if (lseek(id->fd, off, SEEK_SET) < 0) {
- dbg("lseek failed (%s)", strerror(errno));
+ dbg("lseek failed (%s)\n", strerror(errno));
return NULL;
}
buf_len = read(id->fd, id->seekbuf, len);
if (buf_len < 0) {
- dbg("read failed (%s)", strerror(errno));
+ dbg("read failed (%s)\n", strerror(errno));
return NULL;
}
- dbg("got 0x%zx (%zi) bytes", buf_len, buf_len);
+ dbg("got 0x%zx (%zi) bytes\n", buf_len, buf_len);
id->seekbuf_off = off;
id->seekbuf_len = buf_len;
if ((size_t)buf_len < len) {
- dbg("requested 0x%zx bytes, got only 0x%zx bytes", len, buf_len);
+ dbg("requested 0x%zx bytes, got only 0x%zx bytes\n", len, buf_len);
return NULL;
}
}
~ianmdlvl / elogind.git / blobdiff