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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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 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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* Read language depeneded messagefile */
#include "mysql_priv.h"
#include "mysys_err.h"
static bool read_texts(const char *file_name,const char ***point,
uint error_messages);
static void init_myfunc_errs(void);
/*
Read messages from errorfile.
SYNOPSIS
init_errmessage()
DESCRIPTION
This function can be called multiple times to reload the messages.
RETURN
FALSE OK
TRUE Error
*/
bool init_errmessage(void)
{
const char **errmsgs;
DBUG_ENTER("init_errmessage");
/*
Get a pointer to the old error messages pointer array.
read_texts() tries to free it.
*/
errmsgs= my_error_unregister(ER_ERROR_FIRST, ER_ERROR_LAST);
/* Read messages from file. */
if (read_texts(ERRMSG_FILE, &errmsgs, ER_ERROR_LAST - ER_ERROR_FIRST + 1))
DBUG_RETURN(TRUE);
/* Register messages for use with my_error(). */
if (my_error_register(errmsgs, ER_ERROR_FIRST, ER_ERROR_LAST))
{
x_free((gptr) errmsgs);
DBUG_RETURN(TRUE);
}
errmesg= errmsgs; /* Init global variabel */
init_myfunc_errs(); /* Init myfunc messages */
DBUG_RETURN(FALSE);
}
/* Read text from packed textfile in language-directory */
/* If we can't read messagefile then it's panic- we can't continue */
static bool read_texts(const char *file_name,const char ***point,
uint error_messages)
{
register uint i;
uint count,funktpos,length,textcount;
File file;
char name[FN_REFLEN];
const char *buff;
uchar head[32],*pos;
DBUG_ENTER("read_texts");
*point=0; // If something goes wrong
LINT_INIT(buff);
funktpos=0;
if ((file=my_open(fn_format(name,file_name,language,"",4),
O_RDONLY | O_SHARE | O_BINARY,
MYF(0))) < 0)
goto err; /* purecov: inspected */
funktpos=1;
if (my_read(file,(byte*) head,32,MYF(MY_NABP))) goto err;
if (head[0] != (uchar) 254 || head[1] != (uchar) 254 ||
head[2] != 2 || head[3] != 1)
goto err; /* purecov: inspected */
textcount=head[4];
if (!head[30])
{
sql_print_error("Character set information not found in '%s'. \
Please install the latest version of this file.",name);
goto err1;
}
/* TODO: Convert the character set to server system character set */
if (!get_charset(head[30],MYF(MY_WME)))
{
sql_print_error("Character set #%d is not supported for messagefile '%s'",
(int)head[30],name);
goto err1;
}
length=uint2korr(head+6); count=uint2korr(head+8);
if (count < error_messages)
{
sql_print_error("\
Error message file '%s' had only %d error messages,\n\
but it should contain at least %d error messages.\n\
Check that the above file is the right version for this program!",
name,count,error_messages);
VOID(my_close(file,MYF(MY_WME)));
unireg_abort(1);
}
x_free((gptr) *point); /* Free old language */
if (!(*point= (const char**)
my_malloc((uint) (length+count*sizeof(char*)),MYF(0))))
{
funktpos=2; /* purecov: inspected */
goto err; /* purecov: inspected */
}
buff= (char*) (*point + count);
if (my_read(file,(byte*) buff,(uint) count*2,MYF(MY_NABP))) goto err;
for (i=0, pos= (uchar*) buff ; i< count ; i++)
{
(*point)[i]=buff+uint2korr(pos);
pos+=2;
}
if (my_read(file,(byte*) buff,(uint) length,MYF(MY_NABP))) goto err;
for (i=1 ; i < textcount ; i++)
{
point[i]= *point +uint2korr(head+10+i+i);
}
VOID(my_close(file,MYF(0)));
DBUG_RETURN(0);
err:
switch (funktpos) {
case 2:
buff="Not enough memory for messagefile '%s'";
break;
case 1:
buff="Can't read from messagefile '%s'";
break;
default:
buff="Can't find messagefile '%s'";
break;
}
sql_print_error(buff,name);
err1:
if (file != FERR)
VOID(my_close(file,MYF(MY_WME)));
unireg_abort(1);
DBUG_RETURN(1); // keep compiler happy
} /* read_texts */
/* Initiates error-messages used by my_func-library */
static void init_myfunc_errs()
{
init_glob_errs(); /* Initiate english errors */
if (!(specialflag & SPECIAL_ENGLISH))
{
EE(EE_FILENOTFOUND) = ER(ER_FILE_NOT_FOUND);
EE(EE_CANTCREATEFILE) = ER(ER_CANT_CREATE_FILE);
EE(EE_READ) = ER(ER_ERROR_ON_READ);
EE(EE_WRITE) = ER(ER_ERROR_ON_WRITE);
EE(EE_BADCLOSE) = ER(ER_ERROR_ON_CLOSE);
EE(EE_OUTOFMEMORY) = ER(ER_OUTOFMEMORY);
EE(EE_DELETE) = ER(ER_CANT_DELETE_FILE);
EE(EE_LINK) = ER(ER_ERROR_ON_RENAME);
EE(EE_EOFERR) = ER(ER_UNEXPECTED_EOF);
EE(EE_CANTLOCK) = ER(ER_CANT_LOCK);
EE(EE_DIR) = ER(ER_CANT_READ_DIR);
EE(EE_STAT) = ER(ER_CANT_GET_STAT);
EE(EE_GETWD) = ER(ER_CANT_GET_WD);
EE(EE_SETWD) = ER(ER_CANT_SET_WD);
EE(EE_DISK_FULL) = ER(ER_DISK_FULL);
}
}
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