r23779: Change from v2 or later to v3 or later.
[ira/wip.git] / source3 / include / charset.h
index f999a9cf7205c4cd9ff1fbc6142a7e8605df4469..9b35736ea931c8dae1d64d5ca3c4d25c55fa826b 100644 (file)
@@ -6,7 +6,7 @@
    
    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,
@@ -20,9 +20,9 @@
 */
 
 /* 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 5
+#define NUM_CHARSETS 6
 
 /* 
  *   for each charset we have a function that pushes from that charset to a ucs2
@@ -31,10 +31,97 @@ typedef enum {CH_UCS2=0, CH_UNIX=1, CH_DISPLAY=2, CH_DOS=3, CH_UTF8=4} charset_t
 
 struct charset_functions {
        const char *name;
-       size_t (*pull)(void *, char **inbuf, size_t *inbytesleft,
+       size_t (*pull)(void *, const char **inbuf, size_t *inbytesleft,
                                   char **outbuf, size_t *outbytesleft);
-       size_t (*push)(void *, char **inbuf, size_t *inbytesleft,
+       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);                               \
+}                                                                                              \
+