BuildSystem/Windows: * Added 5.1.50 (GA) MySQL client sources for crosscompiling (or lazy) windows people.
* Added an option to autosearch for your own installed MySQL as before. Note that default setting is to use the internal MySQL. * You can now build 32-bit even if your MySQL is x64 and vice versa. * Recommended MySQL server version for use with provided MySQL client sources is 5.1.x. * If your server version is different, let CMake autofind and use it instead (check EXTERNAL_MYSQL option) --HG-- branch : trunk
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Xanadu
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/* Copyright (C) 2000 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include "mysys_priv.h"
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#include <m_string.h>
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#ifdef __WIN__
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/*
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Check a file or path for accessability.
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SYNOPSIS
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file_access()
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path Path to file
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amode Access method
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DESCRIPTION
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This function wraps the normal access method because the access
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available in MSVCRT> +reports that filenames such as LPT1 and
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COM1 are valid (they are but should not be so for us).
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RETURN VALUES
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0 ok
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-1 error (We use -1 as my_access is mapped to access on other platforms)
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*/
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int my_access(const char *path, int amode)
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{
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WIN32_FILE_ATTRIBUTE_DATA fileinfo;
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BOOL result;
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result= GetFileAttributesEx(path, GetFileExInfoStandard, &fileinfo);
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if (! result ||
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(fileinfo.dwFileAttributes & FILE_ATTRIBUTE_READONLY) && (amode & W_OK))
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{
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my_errno= errno= EACCES;
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return -1;
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}
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return 0;
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}
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#endif /* __WIN__ */
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/*
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List of file names that causes problem on windows
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NOTE that one can also not have file names of type CON.TXT
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NOTE: it is important to keep "CLOCK$" on the first place,
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we skip it in check_if_legal_tablename.
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*/
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static const char *reserved_names[]=
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{
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"CLOCK$",
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"CON", "PRN", "AUX", "NUL",
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"COM1", "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9",
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"LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9",
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NullS
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};
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#define MAX_RESERVED_NAME_LENGTH 6
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/*
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Looks up a null-terminated string in a list,
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case insensitively.
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SYNOPSIS
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str_list_find()
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list list of items
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str item to find
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RETURN
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0 ok
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1 reserved file name
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*/
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static int str_list_find(const char **list, const char *str)
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{
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const char **name;
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for (name= list; *name; name++)
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{
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if (!my_strcasecmp(&my_charset_latin1, *name, str))
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return 1;
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}
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return 0;
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}
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/*
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A map for faster reserved_names lookup,
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helps to avoid loops in many cases.
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1 - can be the first letter
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2 - can be the second letter
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4 - can be the third letter
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*/
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static char reserved_map[256]=
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{
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ................ */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ................ */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* !"#$%&'()*+,-./ */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0123456789:;<=>? */
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0,1,0,1,0,0,0,0,0,0,0,0,7,4,5,2, /* @ABCDEFGHIJKLMNO */
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3,0,2,0,4,2,0,0,4,0,0,0,0,0,0,0, /* PQRSTUVWXYZ[\]^_ */
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0,1,0,1,0,0,0,0,0,0,0,0,7,4,5,2, /* bcdefghijklmno */
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3,0,2,0,4,2,0,0,4,0,0,0,0,0,0,0, /* pqrstuvwxyz{|}~. */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ................ */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ................ */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ................ */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ................ */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ................ */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ................ */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ................ */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* ................ */
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};
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/*
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Check if a table name may cause problems
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SYNOPSIS
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check_if_legal_tablename
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name Table name (without any extensions)
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DESCRIPTION
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We don't check 'CLOCK$' because dollar sign is encoded as @0024,
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making table file name 'CLOCK@0024', which is safe.
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This is why we start lookup from the second element
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(i.e. &reserver_name[1])
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RETURN
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0 ok
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1 reserved file name
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*/
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int check_if_legal_tablename(const char *name)
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{
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DBUG_ENTER("check_if_legal_tablename");
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DBUG_RETURN((reserved_map[(uchar) name[0]] & 1) &&
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(reserved_map[(uchar) name[1]] & 2) &&
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(reserved_map[(uchar) name[2]] & 4) &&
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str_list_find(&reserved_names[1], name));
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}
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#if defined(__WIN__) || defined(__EMX__)
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/*
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Check if a path will access a reserverd file name that may cause problems
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SYNOPSIS
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check_if_legal_filename
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path Path to file
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RETURN
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0 ok
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1 reserved file name
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*/
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int check_if_legal_filename(const char *path)
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{
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const char *end;
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const char **reserved_name;
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DBUG_ENTER("check_if_legal_filename");
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path+= dirname_length(path); /* To start of filename */
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if (!(end= strchr(path, FN_EXTCHAR)))
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end= strend(path);
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if (path == end || (uint) (end - path) > MAX_RESERVED_NAME_LENGTH)
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DBUG_RETURN(0); /* Simplify inner loop */
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for (reserved_name= reserved_names; *reserved_name; reserved_name++)
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{
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const char *reserved= *reserved_name; /* never empty */
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const char *name= path;
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do
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{
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if (*reserved != my_toupper(&my_charset_latin1, *name))
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break;
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if (++name == end && !reserved[1])
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DBUG_RETURN(1); /* Found wrong path */
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} while (*++reserved);
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}
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DBUG_RETURN(0);
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}
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#endif /* defined(__WIN__) || defined(__EMX__) */
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