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RetroZilla/db/sqlite3/sqlite-fix-non-unicode-win.patch
Ryan Nematz 2f2ae146c0 first commit
2015-10-20 23:03:22 -04:00

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Index: os_win.c
===================================================================
RCS file: /cvsroot/mozilla/db/sqlite3/src/os_win.c,v
retrieving revision 1.2.8.4
diff -u -8 -p -r1.2.8.4 os_win.c
--- os_win.c 22 May 2006 19:12:32 -0000 1.2.8.4
+++ os_win.c 18 Jul 2006 22:33:46 -0000
@@ -126,19 +126,16 @@ int sqlite3_os_type = 0;
/*
** Convert a UTF-8 string to UTF-32. Space to hold the returned string
** is obtained from sqliteMalloc.
*/
static WCHAR *utf8ToUnicode(const char *zFilename){
int nChar;
WCHAR *zWideFilename;
- if( !isNT() ){
- return 0;
- }
nChar = MultiByteToWideChar(CP_UTF8, 0, zFilename, -1, NULL, 0);
zWideFilename = sqliteMalloc( nChar*sizeof(zWideFilename[0]) );
if( zWideFilename==0 ){
return 0;
}
nChar = MultiByteToWideChar(CP_UTF8, 0, zFilename, -1, zWideFilename, nChar);
if( nChar==0 ){
sqliteFree(zWideFilename);
@@ -164,16 +161,93 @@ static char *unicodeToUtf8(const WCHAR *
0, 0);
if( nByte == 0 ){
sqliteFree(zFilename);
zFilename = 0;
}
return zFilename;
}
+/*
+** Convert a multibyte character string to UTF-32, based on the current Ansi codepage (CP_ACP).
+** Space to hold the returned string is obtained from sqliteMalloc.
+*/
+static WCHAR *mbcsToUnicode(const char *zFilename){
+ int nByte;
+ WCHAR *zMbcsFilename;
+
+ nByte = MultiByteToWideChar(CP_ACP, 0, zFilename, -1, NULL, 0)*sizeof(WCHAR);
+ zMbcsFilename = sqliteMalloc( nByte*sizeof(zMbcsFilename[0]) );
+ if( zMbcsFilename==0 ){
+ return 0;
+ }
+ nByte = MultiByteToWideChar(CP_ACP, 0, zFilename, -1, zMbcsFilename, nByte);
+ if( nByte==0 ){
+ sqliteFree(zMbcsFilename);
+ zMbcsFilename = 0;
+ }
+ return zMbcsFilename;
+}
+
+/*
+** Convert UTF-32 to multibyte character string, based on the user's Ansi codepage (CP_ACP).
+** Space to hold the returned string is obtained from sqliteMalloc().
+*/
+static char *unicodeToMbcs(const WCHAR *zWideFilename){
+ int nByte;
+ char *zFilename;
+
+ nByte = WideCharToMultiByte(CP_ACP, 0, zWideFilename, -1, 0, 0, 0, 0);
+ zFilename = sqliteMalloc( nByte );
+ if( zFilename==0 ){
+ return 0;
+ }
+ nByte = WideCharToMultiByte(CP_ACP, 0, zWideFilename, -1, zFilename, nByte,
+ 0, 0);
+ if( nByte == 0 ){
+ sqliteFree(zFilename);
+ zFilename = 0;
+ }
+ return zFilename;
+}
+
+/*
+** Convert multibyte character string to UTF-8. Space to hold the returned string is
+** obtained from sqliteMalloc().
+*/
+static char *mbcsToUtf8(const char *zFilename){
+ char *zFilenameUtf8;
+ WCHAR *zTmpWide;
+
+ zTmpWide = mbcsToUnicode(zFilename);
+ if( zTmpWide==0 ){
+ return 0;
+ }
+ zFilenameUtf8 = unicodeToUtf8(zTmpWide);
+ sqliteFree(zTmpWide);
+ return zFilenameUtf8;
+}
+
+/*
+** Convert UTF-8 to multibyte character string. Space to hold the returned string is
+** obtained from sqliteMalloc().
+*/
+static char *utf8ToMbcs(const char *zFilename){
+ char *zFilenameMbcs;
+ WCHAR *zTmpWide;
+
+ zTmpWide = utf8ToUnicode(zFilename);
+ if( zTmpWide==0 ){
+ return 0;
+ }
+ zFilenameMbcs = unicodeToMbcs(zTmpWide);
+ sqliteFree(zTmpWide);
+ return zFilenameMbcs;
+}
+
#if OS_WINCE
/*************************************************************************
** This section contains code for WinCE only.
*/
/*
** WindowsCE does not have a localtime() function. So create a
** substitute.
*/
@@ -470,51 +544,58 @@ static BOOL winceLockFileEx(
}
return FALSE;
}
/*
** End of the special code for wince
*****************************************************************************/
#endif /* OS_WINCE */
+static void *convertUtf8Filename(const char *zFilename){
+ void *zConverted = 0;
+ if( isNT() ){
+ zConverted = utf8ToUnicode(zFilename);
+ }else{
+ zConverted = utf8ToMbcs(zFilename);
+ }
+ /* caller will handle out of memory */
+ return zConverted;
+}
+
/*
** Delete the named file
*/
int sqlite3WinDelete(const char *zFilename){
- WCHAR *zWide = utf8ToUnicode(zFilename);
- if( zWide ){
- DeleteFileW(zWide);
- sqliteFree(zWide);
- }else{
-#if OS_WINCE
+ void *zConverted = convertUtf8Filename(zFilename);
+ if( zConverted==0 )
return SQLITE_NOMEM;
-#else
- DeleteFileA(zFilename);
-#endif
+ if( isNT() ){
+ DeleteFileW((WCHAR*)zConverted);
+ }else{
+ DeleteFileA((char*)zConverted);
}
+ sqliteFree(zConverted);
TRACE2("DELETE \"%s\"\n", zFilename);
return SQLITE_OK;
}
/*
** Return TRUE if the named file exists.
*/
int sqlite3WinFileExists(const char *zFilename){
int exists = 0;
- WCHAR *zWide = utf8ToUnicode(zFilename);
- if( zWide ){
- exists = GetFileAttributesW(zWide) != 0xffffffff;
- sqliteFree(zWide);
- }else{
-#if OS_WINCE
+ void *zConverted = convertUtf8Filename(zFilename);
+ if( zConverted==0 )
return SQLITE_NOMEM;
-#else
- exists = GetFileAttributesA(zFilename) != 0xffffffff;
-#endif
+ if( isNT() ){
+ exists = GetFileAttributesW((WCHAR*)zConverted) != 0xffffffff;
+ }else{
+ exists = GetFileAttributesA((char*)zConverted) != 0xffffffff;
}
+ sqliteFree(zConverted);
return exists;
}
/* Forward declaration */
static int allocateWinFile(winFile *pInit, OsFile **pId);
/*
** Attempt to open a file for both reading and writing. If that
@@ -531,82 +612,84 @@ static int allocateWinFile(winFile *pIni
*/
int sqlite3WinOpenReadWrite(
const char *zFilename,
OsFile **pId,
int *pReadonly
){
winFile f;
HANDLE h;
- WCHAR *zWide = utf8ToUnicode(zFilename);
+ void *zConverted = convertUtf8Filename(zFilename);
+ if( zConverted==0 )
+ return SQLITE_NOMEM;
assert( *pId==0 );
- if( zWide ){
- h = CreateFileW(zWide,
+
+ if( isNT() ){
+ h = CreateFileW((WCHAR*)zConverted,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
NULL
);
if( h==INVALID_HANDLE_VALUE ){
- h = CreateFileW(zWide,
+ h = CreateFileW((WCHAR*)zConverted,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
NULL
);
if( h==INVALID_HANDLE_VALUE ){
- sqliteFree(zWide);
+ sqliteFree(zConverted);
return SQLITE_CANTOPEN;
}
*pReadonly = 1;
}else{
*pReadonly = 0;
}
#if OS_WINCE
if (!winceCreateLock(zFilename, &f)){
CloseHandle(h);
- sqliteFree(zWide);
+ sqliteFree(zConverted);
return SQLITE_CANTOPEN;
}
#endif
- sqliteFree(zWide);
}else{
-#if OS_WINCE
- return SQLITE_NOMEM;
-#else
- h = CreateFileA(zFilename,
+ h = CreateFileA((char*)zConverted,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
NULL
);
if( h==INVALID_HANDLE_VALUE ){
- h = CreateFileA(zFilename,
+ h = CreateFileA((char*)zConverted,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
NULL
);
if( h==INVALID_HANDLE_VALUE ){
+ sqliteFree(zConverted);
return SQLITE_CANTOPEN;
}
*pReadonly = 1;
}else{
*pReadonly = 0;
}
-#endif /* OS_WINCE */
}
+
+ sqliteFree(zConverted);
+
f.h = h;
#if OS_WINCE
f.zDeleteOnClose = 0;
#endif
TRACE3("OPEN R/W %d \"%s\"\n", h, zFilename);
return allocateWinFile(&f, pId);
}
@@ -624,48 +707,46 @@ int sqlite3WinOpenReadWrite(
** On success, write the file handle into *id and return SQLITE_OK.
**
** On failure, return SQLITE_CANTOPEN.
*/
int sqlite3WinOpenExclusive(const char *zFilename, OsFile **pId, int delFlag){
winFile f;
HANDLE h;
int fileflags;
- WCHAR *zWide = utf8ToUnicode(zFilename);
+ void *zConverted = convertUtf8Filename(zFilename);
+ if( zConverted==0 )
+ return SQLITE_NOMEM;
assert( *pId == 0 );
fileflags = FILE_FLAG_RANDOM_ACCESS;
#if !OS_WINCE
if( delFlag ){
fileflags |= FILE_ATTRIBUTE_TEMPORARY | FILE_FLAG_DELETE_ON_CLOSE;
}
#endif
- if( zWide ){
- h = CreateFileW(zWide,
+ if( isNT() ){
+ h = CreateFileW((WCHAR*)zConverted,
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
fileflags,
NULL
);
- sqliteFree(zWide);
}else{
-#if OS_WINCE
- return SQLITE_NOMEM;
-#else
- h = CreateFileA(zFilename,
+ h = CreateFileA((char*)zConverted,
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
fileflags,
NULL
);
-#endif /* OS_WINCE */
}
+ sqliteFree(zConverted);
if( h==INVALID_HANDLE_VALUE ){
return SQLITE_CANTOPEN;
}
f.h = h;
#if OS_WINCE
f.zDeleteOnClose = delFlag ? utf8ToUnicode(zFilename) : 0;
f.hMutex = NULL;
#endif
@@ -678,42 +759,40 @@ int sqlite3WinOpenExclusive(const char *
**
** On success, write the file handle into *id and return SQLITE_OK.
**
** On failure, return SQLITE_CANTOPEN.
*/
int sqlite3WinOpenReadOnly(const char *zFilename, OsFile **pId){
winFile f;
HANDLE h;
- WCHAR *zWide = utf8ToUnicode(zFilename);
+ void *zConverted = convertUtf8Filename(zFilename);
+ if( zConverted==0 )
+ return SQLITE_NOMEM;
assert( *pId==0 );
- if( zWide ){
- h = CreateFileW(zWide,
+ if( isNT() ){
+ h = CreateFileW((WCHAR*)zConverted,
GENERIC_READ,
0,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
NULL
);
- sqliteFree(zWide);
}else{
-#if OS_WINCE
- return SQLITE_NOMEM;
-#else
- h = CreateFileA(zFilename,
+ h = CreateFileA((char*)zConverted,
GENERIC_READ,
0,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
NULL
);
-#endif
}
+ sqliteFree(zConverted);
if( h==INVALID_HANDLE_VALUE ){
return SQLITE_CANTOPEN;
}
f.h = h;
#if OS_WINCE
f.zDeleteOnClose = 0;
f.hMutex = NULL;
#endif
@@ -769,19 +848,31 @@ int sqlite3WinTempFileName(char *zBuf){
char *zMulti;
WCHAR zWidePath[SQLITE_TEMPNAME_SIZE];
GetTempPathW(SQLITE_TEMPNAME_SIZE-30, zWidePath);
zMulti = unicodeToUtf8(zWidePath);
if( zMulti ){
strncpy(zTempPath, zMulti, SQLITE_TEMPNAME_SIZE-30);
zTempPath[SQLITE_TEMPNAME_SIZE-30] = 0;
sqliteFree(zMulti);
+ }else{
+ return SQLITE_NOMEM;
}
}else{
- GetTempPathA(SQLITE_TEMPNAME_SIZE-30, zTempPath);
+ char *zUtf8;
+ char zMbcsPath[SQLITE_TEMPNAME_SIZE];
+ GetTempPathA(SQLITE_TEMPNAME_SIZE-30, zMbcsPath);
+ zUtf8 = mbcsToUtf8(zMbcsPath);
+ if( zUtf8 ){
+ strncpy(zTempPath, zUtf8, SQLITE_TEMPNAME_SIZE-30);
+ zTempPath[SQLITE_TEMPNAME_SIZE-30] = 0;
+ sqliteFree(zUtf8);
+ }else{
+ return SQLITE_NOMEM;
+ }
}
for(i=strlen(zTempPath); i>0 && zTempPath[i-1]=='\\'; i--){}
zTempPath[i] = 0;
for(;;){
sprintf(zBuf, "%s\\"TEMP_FILE_PREFIX, zTempPath);
j = strlen(zBuf);
sqlite3Randomness(15, &zBuf[j]);
for(i=0; i<15; i++, j++){
@@ -977,30 +1068,29 @@ static int unlockReadLock(winFile *pFile
#ifndef SQLITE_OMIT_PAGER_PRAGMAS
/*
** Check that a given pathname is a directory and is writable
**
*/
int sqlite3WinIsDirWritable(char *zDirname){
int fileAttr;
- WCHAR *zWide;
+ void *zConverted;
if( zDirname==0 ) return 0;
if( !isNT() && strlen(zDirname)>MAX_PATH ) return 0;
- zWide = utf8ToUnicode(zDirname);
- if( zWide ){
- fileAttr = GetFileAttributesW(zWide);
- sqliteFree(zWide);
+
+ zConverted = convertUtf8Filename(zDirname);
+ if( zConverted==0 )
+ return SQLITE_NOMEM;
+ if( isNT() ){
+ fileAttr = GetFileAttributesW((WCHAR*)zConverted);
}else{
-#if OS_WINCE
- return 0;
-#else
- fileAttr = GetFileAttributesA(zDirname);
-#endif
+ fileAttr = GetFileAttributesA((char*)zConverted);
}
+ sqliteFree(zConverted);
if( fileAttr == 0xffffffff ) return 0;
if( (fileAttr & FILE_ATTRIBUTE_DIRECTORY) != FILE_ATTRIBUTE_DIRECTORY ){
return 0;
}
return 1;
}
#endif /* SQLITE_OMIT_PAGER_PRAGMAS */
@@ -1213,34 +1303,43 @@ char *sqlite3WinFullPathname(const char
nByte = strlen(zRelative) + MAX_PATH + 1001;
zFull = sqliteMalloc( nByte );
if( zFull==0 ) return 0;
if( cygwin_conv_to_full_win32_path(zRelative, zFull) ) return 0;
#elif OS_WINCE
/* WinCE has no concept of a relative pathname, or so I am told. */
zFull = sqliteStrDup(zRelative);
#else
- char *zNotUsed;
- WCHAR *zWide;
int nByte;
- zWide = utf8ToUnicode(zRelative);
- if( zWide ){
+ void *zConverted;
+ zConverted = convertUtf8Filename(zRelative);
+ if( isNT() ){
WCHAR *zTemp, *zNotUsedW;
- nByte = GetFullPathNameW(zWide, 0, 0, &zNotUsedW) + 1;
+ nByte = GetFullPathNameW((WCHAR*)zConverted, 0, 0, &zNotUsedW) + 1;
zTemp = sqliteMalloc( nByte*sizeof(zTemp[0]) );
- if( zTemp==0 ) return 0;
- GetFullPathNameW(zWide, nByte, zTemp, &zNotUsedW);
- sqliteFree(zWide);
+ if( zTemp==0 ){
+ sqliteFree(zConverted);
+ return 0;
+ }
+ GetFullPathNameW((WCHAR*)zConverted, nByte, zTemp, &zNotUsedW);
+ sqliteFree(zConverted);
zFull = unicodeToUtf8(zTemp);
sqliteFree(zTemp);
}else{
- nByte = GetFullPathNameA(zRelative, 0, 0, &zNotUsed) + 1;
- zFull = sqliteMalloc( nByte*sizeof(zFull[0]) );
- if( zFull==0 ) return 0;
- GetFullPathNameA(zRelative, nByte, zFull, &zNotUsed);
+ char *zTemp, *zNotUsed;
+ nByte = GetFullPathNameA((char*)zConverted, 0, 0, &zNotUsed) + 1;
+ zTemp = sqliteMalloc( nByte*sizeof(zTemp[0]) );
+ if( zTemp==0 ){
+ sqliteFree(zConverted);
+ return 0;
+ }
+ GetFullPathNameA((char*)zConverted, nByte, zTemp, &zNotUsed);
+ sqliteFree(zConverted);
+ zFull = mbcsToUtf8(zTemp);
+ sqliteFree(zTemp);
}
#endif
return zFull;
}
/*
** The fullSync option is meaningless on windows. This is a no-op.
*/
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