Unix SMB/CIFS implementation.
charset defines
Copyright (C) Andrew Tridgell 2001
+ Copyright (C) Jelmer Vernooij 2002
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+struct smb_iconv_convenience;
+
/* this defines the charset types used in samba */
-typedef enum {CH_UCS2=0, CH_UNIX=1, CH_DISPLAY=2, CH_DOS=3, CH_UTF8=4} charset_t;
+typedef enum {CH_UTF16LE=0, CH_UTF16=0, CH_UNIX=1, CH_DISPLAY=2, CH_DOS=3, CH_UTF8=4, CH_UTF16BE=5} charset_t;
+
+#define NUM_CHARSETS 6
+
+/*
+ * for each charset we have a function that pushes from that charset to a ucs2
+ * buffer, and a function that pulls from ucs2 buffer to that charset.
+ * */
+
+struct charset_functions {
+ const char *name;
+ size_t (*pull)(void *, const char **inbuf, size_t *inbytesleft,
+ char **outbuf, size_t *outbytesleft);
+ size_t (*push)(void *, const char **inbuf, size_t *inbytesleft,
+ char **outbuf, size_t *outbytesleft);
+ struct charset_functions *prev, *next;
+};
+
+/*
+ * This is auxiliary struct used by source/script/gen-8-bit-gap.sh script
+ * during generation of an encoding table for charset module
+ * */
+
+struct charset_gap_table {
+ uint16 start;
+ uint16 end;
+ int32 idx;
+};
+
+/*
+ * Define stub for charset module which implements 8-bit encoding with gaps.
+ * Encoding tables for such module should be produced from glibc's CHARMAPs
+ * using script source/script/gen-8bit-gap.sh
+ * CHARSETNAME is CAPITALIZED charset name
+ *
+ * */
+#define SMB_GENERATE_CHARSET_MODULE_8_BIT_GAP(CHARSETNAME) \
+static size_t CHARSETNAME ## _push(void *cd, const char **inbuf, size_t *inbytesleft, \
+ char **outbuf, size_t *outbytesleft) \
+{ \
+ while (*inbytesleft >= 2 && *outbytesleft >= 1) { \
+ int i; \
+ int done = 0; \
+ \
+ uint16 ch = SVAL(*inbuf,0); \
+ \
+ for (i=0; from_idx[i].start != 0xffff; i++) { \
+ if ((from_idx[i].start <= ch) && (from_idx[i].end >= ch)) { \
+ ((unsigned char*)(*outbuf))[0] = from_ucs2[from_idx[i].idx+ch]; \
+ (*inbytesleft) -= 2; \
+ (*outbytesleft) -= 1; \
+ (*inbuf) += 2; \
+ (*outbuf) += 1; \
+ done = 1; \
+ break; \
+ } \
+ } \
+ if (!done) { \
+ errno = EINVAL; \
+ return -1; \
+ } \
+ \
+ } \
+ \
+ if (*inbytesleft == 1) { \
+ errno = EINVAL; \
+ return -1; \
+ } \
+ \
+ if (*inbytesleft > 1) { \
+ errno = E2BIG; \
+ return -1; \
+ } \
+ \
+ return 0; \
+} \
+ \
+static size_t CHARSETNAME ## _pull(void *cd, const char **inbuf, size_t *inbytesleft, \
+ char **outbuf, size_t *outbytesleft) \
+{ \
+ while (*inbytesleft >= 1 && *outbytesleft >= 2) { \
+ *(uint16*)(*outbuf) = to_ucs2[((unsigned char*)(*inbuf))[0]]; \
+ (*inbytesleft) -= 1; \
+ (*outbytesleft) -= 2; \
+ (*inbuf) += 1; \
+ (*outbuf) += 2; \
+ } \
+ \
+ if (*inbytesleft > 0) { \
+ errno = E2BIG; \
+ return -1; \
+ } \
+ \
+ return 0; \
+} \
+ \
+struct charset_functions CHARSETNAME ## _functions = \
+ {#CHARSETNAME, CHARSETNAME ## _pull, CHARSETNAME ## _push}; \
+ \
+NTSTATUS charset_ ## CHARSETNAME ## _init(void); \
+NTSTATUS charset_ ## CHARSETNAME ## _init(void) \
+{ \
+ return smb_register_charset(& CHARSETNAME ## _functions); \
+} \
-#define NUM_CHARSETS 5
git.samba.org / jra / samba / .git / blobdiff