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authorJeremy Allison <jra@samba.org>1997-08-30 01:30:25 +0000
committerJeremy Allison <jra@samba.org>1997-08-30 01:30:25 +0000
commit06dc98f220dba6d602010df235679c6584cba279 (patch)
tree77e113e737a2a1cc20205c1f96edb4ca34dae811 /source3/lib
parent57408548f3cc717116b5eb3fe7381f0568ac473d (diff)
downloadsamba-06dc98f220dba6d602010df235679c6584cba279.tar.gz
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Makefile: New program and support for dynamic codepage loading.
charset.c: Dynamic codepage loading code. charset.h: Defines for file format. proto.h: Updated. Jeremy (jallison@whistle.com) (This used to be commit 550e98f2d49a101654b3abde278a7f7edf347ed8)
Diffstat (limited to 'source3/lib')
-rw-r--r--source3/lib/charset.c296
1 files changed, 159 insertions, 137 deletions
diff --git a/source3/lib/charset.c b/source3/lib/charset.c
index c1945cb1ef..4869e09fec 100644
--- a/source3/lib/charset.c
+++ b/source3/lib/charset.c
@@ -28,6 +28,7 @@ extern int DEBUGLEVEL;
* Codepage definitions.
*/
+#if !defined(KANJI)
/* lower->upper mapping for IBM Code Page 850 - MS-DOS Latin 1 */
unsigned char cp_850[][4] = {
/* dec col/row oct hex description */
@@ -95,120 +96,13 @@ unsigned char cp_850[][4] = {
{0x9C,0,0,0}, /* Pound */
{0,0,0,0}
};
-
-/* lower->upper mapping for IBM Code Page 852 - MS-DOS Latin 2 */
-/* Donated by Leos Bitto <bitto@altec.cz> */
-unsigned char cp_852[][4] = {
-{0x81,0x9A,1,1},
-{0x82,0x90,1,1},
-{0x83,0xB6,1,1},
-{0x84,0x8E,1,1},
-{0x85,0xDE,1,1},
-{0x86,0x8F,1,1},
-{0x87,0x80,1,1},
-{0x88,0x9D,1,1},
-{0x89,0xD3,1,1},
-{0x8B,0x8A,1,1},
-{0x8C,0xD7,1,1},
-{0x92,0x91,1,1},
-{0x93,0xE2,1,1},
-{0x94,0x99,1,1},
-{0x96,0x95,1,1},
-{0x98,0x97,1,1},
-{0x9C,0x9B,1,1},
-{0x9F,0xAC,1,1},
-{0xA0,0xB5,1,1},
-{0xA1,0xD6,1,1},
-{0xA2,0xE0,1,1},
-{0xA3,0xE9,1,1},
-{0xA5,0xA4,1,1},
-{0xA7,0xA6,1,1},
-{0xA9,0xA8,1,1},
-{0xAB,0x8D,1,1},
-{0xAD,0xB8,1,1},
-{0xBE,0xBD,1,1},
-{0xC7,0xC6,1,1},
-{0xD0,0xD1,1,1},
-{0xD4,0xD2,1,1},
-{0xD8,0xB7,1,1},
-{0xE4,0xE3,1,1},
-{0xE5,0xD5,1,1},
-{0xE7,0xE6,1,1},
-{0xEA,0xE8,1,1},
-{0xEC,0xED,1,1},
-{0xEE,0xDD,1,1},
-{0xFB,0xEB,1,1},
-{0xFD,0xFC,1,1},
-{0,0,0,0}
-};
-
-/* lower->upper mapping for IBM Code Page 437 - MS-DOS Latin US */
-unsigned char cp_437[][4] = {
-/* 135 08/07 207 87 c cedilla */
-/* 128 08/00 200 80 C cedilla */ {0x87,0x80,1,1},
-/* 129 08/01 201 81 u diaeresis */
-/* 154 09/10 232 9A U diaeresis */ {0x81,0x9A,1,1},
-/* 130 08/02 202 82 e acute */
-/* 144 09/00 220 90 E acute */ {0x82,0x90,1,1},
-/* 131 08/03 203 83 a circumflex */ {0x83,0x41,1,0},
-/* 132 08/04 204 84 a diaeresis */
-/* 142 08/14 216 8E A diaeresis */ {0x84,0x8E,1,1},
-/* 133 08/05 205 85 a grave */ {0x85,0x41,1,0},
-/* 134 08/06 206 86 a ring */ {0x86,0x8F,1,1},
-/* 136 08/08 210 88 e circumflex */ {0x88,0x45,1,0},
-/* 137 08/09 211 89 e diaeresis */ {0x89,0x45,1,0},
-/* 138 08/10 212 8A e grave */ {0x8A,0x45,1,0},
-/* 139 08/11 213 8B i diaeresis */ {0x8B,0x49,1,0},
-/* 140 08/12 214 8C i circumflex */ {0x8C,0x49,1,0},
-/* 141 08/13 215 8D i grave */ {0x8D,0x49,1,0},
-/* 145 09/01 221 91 ae diphthong */
-/* 146 09/02 222 92 AE diphthong */ {0x91,0x92,1,1},
-/* 147 09/03 223 93 o circumflex */ {0x93,0x4F,1,0},
-/* 148 09/04 224 94 o diaeresis */
-/* 153 09/09 231 99 O diaeresis */ {0x94,0x99,1,1},
-/* 149 09/05 225 95 o grave */ {0x95,0x4F,1,0},
-/* 150 09/06 226 96 u circumflex */ {0x96,0x55,1,0},
-/* 151 09/07 227 97 u grave */ {0x97,0x55,1,0},
-/* 152 ??/?? 201 98 u diaeresis */
- {0x9B,0,0,0}, /* Cent */
- {0x9C,0,0,0}, /* Pound */
- {0x9D,0,0,0}, /* Yen */
-/* 160 10/00 240 A0 a acute */ {0xA0,0x41,1,0},
-/* 161 10/01 241 A1 i acute */ {0xA1,0x49,1,0},
-/* 162 10/02 242 A2 o acute */ {0xA2,0x4F,1,0},
-/* 163 10/03 243 A3 u acute */ {0xA3,0x55,1,0},
-/* 164 10/04 244 A4 n tilde */
-/* 165 10/05 245 A5 N tilde */ {0xA4,0xA5,1,1},
-/* Punctuation... */
- {0xA8,0,0,0},
- {0xAD,0,0,0},
- {0xAE,0,0,0},
- {0xAF,0,0,0},
-/* Greek character set */
- {0xE0,0,0,0},
- {0xE1,0,0,0},
- {0xE2,0,0,0},
- {0xE3,0,0,0},
- {0xE4,0,0,0},
- {0xE5,0,0,0},
- {0xE6,0,0,0},
- {0xE7,0,0,0},
- {0xE8,0,0,0},
- {0xE9,0,0,0},
- {0xEA,0,0,0},
- {0xEB,0,0,0},
- {0xEC,0,0,0},
- {0xED,0,0,0},
- {0xEE,0,0,0},
- {0xEF,0,0,0},
- {0,0,0,0}
-};
-
+#else /* KANJI */
/* lower->upper mapping for IBM Code Page 932 - MS-DOS Japanese SJIS */
unsigned char cp_932[][4] = {
{0,0,0,0}
};
-
+#endif /* KANJI */
+
char xx_dos_char_map[256];
char xx_upper_char_map[256];
char xx_lower_char_map[256];
@@ -240,9 +134,9 @@ static void add_dos_char(int lower, BOOL map_lower_to_upper,
if (upper) dos_char_map[upper] = 1;
if (lower && upper) {
if(map_upper_to_lower)
- lower_char_map[upper] = (char)lower;
+ lower_char_map[upper] = (char)lower;
if(map_lower_to_upper)
- upper_char_map[lower] = (char)upper;
+ upper_char_map[lower] = (char)upper;
}
}
@@ -277,12 +171,152 @@ void charset_initialise()
}
/****************************************************************************
+load the client codepage.
+****************************************************************************/
+
+typedef unsigned char (*codepage_p)[4];
+
+static codepage_p load_client_codepage( int client_codepage )
+{
+ pstring codepage_file_name;
+ unsigned char buf[8];
+ FILE *fp = NULL;
+ unsigned int size;
+ codepage_p cp_p = NULL;
+ struct stat st;
+
+ DEBUG(5, ("load_client_codepage: loading codepage %d.\n", client_codepage));
+
+ if(strlen(CODEPAGEDIR) + 14 > sizeof(codepage_file_name))
+ {
+ DEBUG(0,("load_client_codepage: filename too long to load\n"));
+ return NULL;
+ }
+
+ strcpy(codepage_file_name, CODEPAGEDIR);
+ strcat(codepage_file_name, "/");
+ strcat(codepage_file_name, "codepage.");
+ sprintf( &codepage_file_name[strlen(codepage_file_name)], "%03d",
+ client_codepage);
+
+ if(!file_exist(codepage_file_name,&st))
+ {
+ DEBUG(0,("load_client_codepage: filename %s does not exist.\n",
+ codepage_file_name));
+ return NULL;
+ }
+
+ /* Check if it is at least big enough to hold the required
+ data. Should be 2 byte version, 2 byte codepage, 4 byte length,
+ plus zero or more bytes of data. Note that the data cannot be more
+ than 512 bytes - giving a max size of 520.
+ */
+ size = (unsigned int)st.st_size;
+
+ if( size < CODEPAGE_HEADER_SIZE || size > (CODEPAGE_HEADER_SIZE + 256))
+ {
+ DEBUG(0,("load_client_codepage: file %s is an incorrect size for a \
+code page file.\n", codepage_file_name));
+ return NULL;
+ }
+
+ /* Read the first 8 bytes of the codepage file - check
+ the version number and code page number. All the data
+ is held in little endian format.
+ */
+
+ if((fp = fopen( codepage_file_name, "r")) == NULL)
+ {
+ DEBUG(0,("load_client_codepage: cannot open file %s. Error was %s\n",
+ codepage_file_name, strerror(errno)));
+ return NULL;
+ }
+
+ if(fread( buf, 1, CODEPAGE_HEADER_SIZE, fp)!=CODEPAGE_HEADER_SIZE)
+ {
+ DEBUG(0,("load_client_codepage: cannot read header from file %s. Error was %s\n",
+ codepage_file_name, strerror(errno)));
+ goto clean_and_exit;
+ }
+
+ /* Check the version value */
+ if(SVAL(buf,CODEPAGE_VERSION_OFFSET) != CODEPAGE_FILE_VERSION_ID)
+ {
+ DEBUG(0,("load_client_codepage: filename %s has incorrect version id. \
+Needed %hu, got %hu.\n",
+ codepage_file_name, (uint16)CODEPAGE_FILE_VERSION_ID,
+ SVAL(buf,CODEPAGE_VERSION_OFFSET)));
+ goto clean_and_exit;
+ }
+
+ /* Check the codepage matches */
+ if(SVAL(buf,CODEPAGE_CLIENT_CODEPAGE_OFFSET) != (uint16)client_codepage)
+ {
+ DEBUG(0,("load_client_codepage: filename %s has incorrect codepage. \
+Needed %hu, got %hu.\n",
+ codepage_file_name, (uint16)client_codepage,
+ SVAL(buf,CODEPAGE_CLIENT_CODEPAGE_OFFSET)));
+ goto clean_and_exit;
+ }
+
+ /* Check the length is correct. */
+ if(IVAL(buf,CODEPAGE_LENGTH_OFFSET) !=
+ (unsigned int)(size - CODEPAGE_HEADER_SIZE))
+ {
+ DEBUG(0,("load_client_codepage: filename %s has incorrect size headers. \
+Needed %u, got %u.\n", codepage_file_name, size - CODEPAGE_HEADER_SIZE,
+ IVAL(buf,CODEPAGE_LENGTH_OFFSET)));
+ goto clean_and_exit;
+ }
+
+ size -= CODEPAGE_HEADER_SIZE; /* Remove header */
+
+ /* Make sure the size is a multiple of 4. */
+ if((size % 4 ) != 0)
+ {
+ DEBUG(0,("load_client_codepage: filename %s has a codepage size not a \
+multiple of 4.\n", codepage_file_name));
+ goto clean_and_exit;
+ }
+
+ /* Allocate space for the code page file and read it all in. */
+ if((cp_p = (codepage_p)malloc( size + 4 )) == NULL)
+ {
+ DEBUG(0,("load_client_codepage: malloc fail.\n"));
+ goto clean_and_exit;
+ }
+
+ if(fread( (char *)cp_p, 1, size, fp)!=size)
+ {
+ DEBUG(0,("load_client_codepage: read fail on file %s. Error was %s.\n",
+ codepage_file_name, strerror(errno)));
+ goto clean_and_exit;
+ }
+
+ /* Ensure array is correctly terminated. */
+ memset(((char *)cp_p) + size, '\0', 4);
+
+ fclose(fp);
+ return cp_p;
+
+clean_and_exit:
+
+ /* pseudo destructor :-) */
+
+ if(fp != NULL)
+ fclose(fp);
+ if(cp_p)
+ free((char *)cp_p);
+ return NULL;
+}
+
+/****************************************************************************
initialise the client codepage.
****************************************************************************/
void codepage_initialise(int client_codepage)
{
int i;
- unsigned char (*cp)[4] = NULL;
+ codepage_p cp = NULL;
static BOOL done = False;
if(done == True)
@@ -298,38 +332,26 @@ void codepage_initialise(int client_codepage)
/*
* Known client codepages - these can be added to.
*/
- switch(client_codepage)
+ cp = load_client_codepage( client_codepage );
+
+ if(cp == NULL)
{
- case 850:
- cp = cp_850;
- break;
- case 852:
- cp = cp_852;
- break;
- case 437:
- cp = cp_437;
- break;
- case 932:
- cp = cp_932;
- break;
- default:
#ifdef KANJI
- /* Use default codepage - currently 932 */
- DEBUG(6,("codepage_initialise: Using default client codepage %d\n",
- 932));
- cp = cp_932;
+ DEBUG(6,("codepage_initialise: loading dynamic codepage file %s/codepage.%d \
+for code page %d failed. Using default client codepage 932\n",
+ CODEPAGEDIR, client_codepage, client_codepage));
+ cp = cp_932;
#else /* KANJI */
- /* Use default codepage - currently 850 */
- DEBUG(6,("codepage_initialise: Using default client codepage %d\n",
- 850));
- cp = cp_850;
+ DEBUG(6,("codepage_initialise: loading dynamic codepage file %s/codepage.%d \
+for code page %d failed. Using default client codepage 850\n",
+ CODEPAGEDIR, client_codepage, client_codepage));
+ cp = cp_850;
#endif /* KANJI */
- break;
}
if(cp)
{
- for(i = 0; (cp[i][0] != '\0') && (cp[i][1] != '\0'); i++)
+ for(i = 0; !((cp[i][0] == '\0') && (cp[i][1] == '\0')); i++)
add_dos_char(cp[i][0], (BOOL)cp[i][2], cp[i][1], (BOOL)cp[i][3]);
}