aboutsummaryrefslogtreecommitdiff
path: root/src/os_win.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/os_win.c')
-rw-r--r--src/os_win.c194
1 files changed, 97 insertions, 97 deletions
diff --git a/src/os_win.c b/src/os_win.c
index c7c923e77..623e30104 100644
--- a/src/os_win.c
+++ b/src/os_win.c
@@ -3990,6 +3990,103 @@ static int winDeviceCharacteristics(sqlite3_file *id){
*/
static SYSTEM_INFO winSysInfo;
+/*
+** Convert a UTF-8 filename into whatever form the underlying
+** operating system wants filenames in. Space to hold the result
+** is obtained from malloc and must be freed by the calling
+** function
+**
+** On Cygwin, 3 possible input forms are accepted:
+** - If the filename starts with "<drive>:/" or "<drive>:\",
+** it is converted to UTF-16 as-is.
+** - If the filename contains '/', it is assumed to be a
+** Cygwin absolute path, it is converted to a win32
+** absolute path in UTF-16.
+** - Otherwise it must be a filename only, the win32 filename
+** is returned in UTF-16.
+** Note: If the function cygwin_conv_path() fails, only
+** UTF-8 -> UTF-16 conversion will be done. This can only
+** happen when the file path >32k, in which case winUtf8ToUnicode()
+** will fail too.
+*/
+static void *winConvertFromUtf8Filename(const char *zFilename){
+ void *zConverted = 0;
+ if( osIsNT() ){
+#ifdef __CYGWIN__
+ int nChar;
+ LPWSTR zWideFilename;
+
+ if( osCygwin_conv_path && !(winIsDriveLetterAndColon(zFilename)
+ && winIsDirSep(zFilename[2])) ){
+ i64 nByte;
+ int convertflag = CCP_POSIX_TO_WIN_W;
+ if( !strchr(zFilename, '/') ) convertflag |= CCP_RELATIVE;
+ nByte = (i64)osCygwin_conv_path(convertflag,
+ zFilename, 0, 0);
+ if( nByte>0 ){
+ zConverted = sqlite3MallocZero(12+(u64)nByte);
+ if ( zConverted==0 ){
+ return zConverted;
+ }
+ zWideFilename = zConverted;
+ /* Filenames should be prefixed, except when converted
+ * full path already starts with "\\?\". */
+ if( osCygwin_conv_path(convertflag, zFilename,
+ zWideFilename+4, nByte)==0 ){
+ if( (convertflag&CCP_RELATIVE) ){
+ memmove(zWideFilename, zWideFilename+4, nByte);
+ }else if( memcmp(zWideFilename+4, L"\\\\", 4) ){
+ memcpy(zWideFilename, L"\\\\?\\", 8);
+ }else if( zWideFilename[6]!='?' ){
+ memmove(zWideFilename+6, zWideFilename+4, nByte);
+ memcpy(zWideFilename, L"\\\\?\\UNC", 14);
+ }else{
+ memmove(zWideFilename, zWideFilename+4, nByte);
+ }
+ return zConverted;
+ }
+ sqlite3_free(zConverted);
+ }
+ }
+ nChar = osMultiByteToWideChar(CP_UTF8, 0, zFilename, -1, NULL, 0);
+ if( nChar==0 ){
+ return 0;
+ }
+ zWideFilename = sqlite3MallocZero( nChar*sizeof(WCHAR)+12 );
+ if( zWideFilename==0 ){
+ return 0;
+ }
+ nChar = osMultiByteToWideChar(CP_UTF8, 0, zFilename, -1,
+ zWideFilename, nChar);
+ if( nChar==0 ){
+ sqlite3_free(zWideFilename);
+ zWideFilename = 0;
+ }else if( nChar>MAX_PATH
+ && winIsDriveLetterAndColon(zFilename)
+ && winIsDirSep(zFilename[2]) ){
+ memmove(zWideFilename+4, zWideFilename, nChar*sizeof(WCHAR));
+ zWideFilename[2] = '\\';
+ memcpy(zWideFilename, L"\\\\?\\", 8);
+ }else if( nChar>MAX_PATH
+ && winIsDirSep(zFilename[0]) && winIsDirSep(zFilename[1])
+ && zFilename[2] != '?' ){
+ memmove(zWideFilename+6, zWideFilename, nChar*sizeof(WCHAR));
+ memcpy(zWideFilename, L"\\\\?\\UNC", 14);
+ }
+ zConverted = zWideFilename;
+#else
+ zConverted = winUtf8ToUnicode(zFilename);
+#endif /* __CYGWIN__ */
+ }
+#if defined(SQLITE_WIN32_HAS_ANSI) && defined(_WIN32)
+ else{
+ zConverted = winUtf8ToMbcs(zFilename, osAreFileApisANSI());
+ }
+#endif
+ /* caller will handle out of memory */
+ return zConverted;
+}
+
#ifndef SQLITE_OMIT_WAL
/*
@@ -4185,103 +4282,6 @@ static int winLockSharedMemory(winShmNode *pShmNode, DWORD nMs){
/*
-** Convert a UTF-8 filename into whatever form the underlying
-** operating system wants filenames in. Space to hold the result
-** is obtained from malloc and must be freed by the calling
-** function
-**
-** On Cygwin, 3 possible input forms are accepted:
-** - If the filename starts with "<drive>:/" or "<drive>:\",
-** it is converted to UTF-16 as-is.
-** - If the filename contains '/', it is assumed to be a
-** Cygwin absolute path, it is converted to a win32
-** absolute path in UTF-16.
-** - Otherwise it must be a filename only, the win32 filename
-** is returned in UTF-16.
-** Note: If the function cygwin_conv_path() fails, only
-** UTF-8 -> UTF-16 conversion will be done. This can only
-** happen when the file path >32k, in which case winUtf8ToUnicode()
-** will fail too.
-*/
-static void *winConvertFromUtf8Filename(const char *zFilename){
- void *zConverted = 0;
- if( osIsNT() ){
-#ifdef __CYGWIN__
- int nChar;
- LPWSTR zWideFilename;
-
- if( osCygwin_conv_path && !(winIsDriveLetterAndColon(zFilename)
- && winIsDirSep(zFilename[2])) ){
- i64 nByte;
- int convertflag = CCP_POSIX_TO_WIN_W;
- if( !strchr(zFilename, '/') ) convertflag |= CCP_RELATIVE;
- nByte = (i64)osCygwin_conv_path(convertflag,
- zFilename, 0, 0);
- if( nByte>0 ){
- zConverted = sqlite3MallocZero(12+(u64)nByte);
- if ( zConverted==0 ){
- return zConverted;
- }
- zWideFilename = zConverted;
- /* Filenames should be prefixed, except when converted
- * full path already starts with "\\?\". */
- if( osCygwin_conv_path(convertflag, zFilename,
- zWideFilename+4, nByte)==0 ){
- if( (convertflag&CCP_RELATIVE) ){
- memmove(zWideFilename, zWideFilename+4, nByte);
- }else if( memcmp(zWideFilename+4, L"\\\\", 4) ){
- memcpy(zWideFilename, L"\\\\?\\", 8);
- }else if( zWideFilename[6]!='?' ){
- memmove(zWideFilename+6, zWideFilename+4, nByte);
- memcpy(zWideFilename, L"\\\\?\\UNC", 14);
- }else{
- memmove(zWideFilename, zWideFilename+4, nByte);
- }
- return zConverted;
- }
- sqlite3_free(zConverted);
- }
- }
- nChar = osMultiByteToWideChar(CP_UTF8, 0, zFilename, -1, NULL, 0);
- if( nChar==0 ){
- return 0;
- }
- zWideFilename = sqlite3MallocZero( nChar*sizeof(WCHAR)+12 );
- if( zWideFilename==0 ){
- return 0;
- }
- nChar = osMultiByteToWideChar(CP_UTF8, 0, zFilename, -1,
- zWideFilename, nChar);
- if( nChar==0 ){
- sqlite3_free(zWideFilename);
- zWideFilename = 0;
- }else if( nChar>MAX_PATH
- && winIsDriveLetterAndColon(zFilename)
- && winIsDirSep(zFilename[2]) ){
- memmove(zWideFilename+4, zWideFilename, nChar*sizeof(WCHAR));
- zWideFilename[2] = '\\';
- memcpy(zWideFilename, L"\\\\?\\", 8);
- }else if( nChar>MAX_PATH
- && winIsDirSep(zFilename[0]) && winIsDirSep(zFilename[1])
- && zFilename[2] != '?' ){
- memmove(zWideFilename+6, zWideFilename, nChar*sizeof(WCHAR));
- memcpy(zWideFilename, L"\\\\?\\UNC", 14);
- }
- zConverted = zWideFilename;
-#else
- zConverted = winUtf8ToUnicode(zFilename);
-#endif /* __CYGWIN__ */
- }
-#if defined(SQLITE_WIN32_HAS_ANSI) && defined(_WIN32)
- else{
- zConverted = winUtf8ToMbcs(zFilename, osAreFileApisANSI());
- }
-#endif
- /* caller will handle out of memory */
- return zConverted;
-}
-
-/*
** This function is used to open a handle on a *-shm file.
**
** If SQLITE_ENABLE_SETLK_TIMEOUT is defined at build time, then the file
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-06 08:51:02 +0000