| /* |
| * File handling functions |
| * |
| * Copyright 1993 John Burton |
| * Copyright 1996 Alexandre Julliard |
| */ |
| |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <sys/errno.h> |
| #include <sys/stat.h> |
| #include <time.h> |
| #include <unistd.h> |
| |
| #include "windows.h" |
| #include "directory.h" |
| #include "dos_fs.h" |
| #include "drive.h" |
| #include "global.h" |
| #include "msdos.h" |
| #include "options.h" |
| #include "ldt.h" |
| #include "task.h" |
| #include "stddebug.h" |
| #include "debug.h" |
| |
| #define MAX_OPEN_FILES 64 /* Max. open files for all tasks; must be <255 */ |
| |
| typedef struct |
| { |
| int unix_handle; |
| int mode; |
| } DOS_FILE; |
| |
| /* Global files array */ |
| static DOS_FILE DOSFiles[MAX_OPEN_FILES]; |
| |
| |
| /*********************************************************************** |
| * FILE_AllocDOSFile |
| * |
| * Allocate a file from the DOS files array. |
| */ |
| static BYTE FILE_AllocDOSFile( int unix_handle ) |
| { |
| BYTE i; |
| for (i = 0; i < MAX_OPEN_FILES; i++) if (!DOSFiles[i].mode) |
| { |
| DOSFiles[i].unix_handle = unix_handle; |
| DOSFiles[i].mode = 1; |
| return i; |
| } |
| return 0xff; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_FreeDOSFile |
| * |
| * Free a file from the DOS files array. |
| */ |
| static BOOL FILE_FreeDOSFile( BYTE handle ) |
| { |
| if (handle >= MAX_OPEN_FILES) return FALSE; |
| if (!DOSFiles[handle].mode) return FALSE; |
| DOSFiles[handle].mode = 0; |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_GetUnixHandle |
| * |
| * Return the Unix handle for a global DOS file handle. |
| */ |
| static int FILE_GetUnixHandle( BYTE handle ) |
| { |
| if (handle >= MAX_OPEN_FILES) return -1; |
| if (!DOSFiles[handle].mode) return -1; |
| return DOSFiles[handle].unix_handle; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_AllocTaskHandle |
| * |
| * Allocate a per-task file handle. |
| */ |
| static HFILE FILE_AllocTaskHandle( int unix_handle ) |
| { |
| PDB *pdb = (PDB *)GlobalLock( GetCurrentPDB() ); |
| BYTE *files, *fp; |
| WORD i; |
| |
| if (!pdb) |
| { |
| fprintf(stderr,"FILE_MakeTaskHandle: internal error, no current PDB.\n"); |
| exit(1); |
| } |
| files = PTR_SEG_TO_LIN( pdb->fileHandlesPtr ); |
| fp = files + 1; /* Don't use handle 0, as some programs don't like it */ |
| for (i = pdb->nbFiles - 1; (i > 0) && (*fp != 0xff); i--, fp++); |
| if (!i || (*fp = FILE_AllocDOSFile( unix_handle )) == 0xff) |
| { /* No more handles or files */ |
| DOS_ERROR( ER_TooManyOpenFiles, EC_ProgramError, SA_Abort, EL_Disk ); |
| return -1; |
| } |
| dprintf_file(stddeb, |
| "FILE_AllocTaskHandle: returning task handle %d, file %d for unix handle %d file %d of %d \n", |
| (fp - files), *fp, unix_handle, pdb->nbFiles - i, pdb->nbFiles ); |
| return (HFILE)(fp - files); |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_FreeTaskHandle |
| * |
| * Free a per-task file handle. |
| */ |
| static void FILE_FreeTaskHandle( HFILE handle ) |
| { |
| PDB *pdb = (PDB *)GlobalLock( GetCurrentPDB() ); |
| BYTE *files; |
| |
| if (!pdb) |
| { |
| fprintf(stderr,"FILE_FreeTaskHandle: internal error, no current PDB.\n"); |
| exit(1); |
| } |
| files = PTR_SEG_TO_LIN( pdb->fileHandlesPtr ); |
| dprintf_file( stddeb,"FILE_FreeTaskHandle: dos=%d file=%d\n", |
| handle, files[handle] ); |
| if ((handle < 0) || (handle >= (INT)pdb->nbFiles) || |
| !FILE_FreeDOSFile( files[handle] )) |
| { |
| fprintf( stderr, "FILE_FreeTaskHandle: invalid file handle %d\n", |
| handle ); |
| return; |
| } |
| files[handle] = 0xff; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_GetUnixTaskHandle |
| * |
| * Return the Unix file handle associated to a task file handle. |
| */ |
| int FILE_GetUnixTaskHandle( HFILE handle ) |
| { |
| PDB *pdb = (PDB *)GlobalLock( GetCurrentPDB() ); |
| BYTE *files; |
| int unix_handle; |
| |
| if (!pdb) |
| { |
| fprintf(stderr,"FILE_GetUnixHandle: internal error, no current PDB.\n"); |
| exit(1); |
| } |
| files = PTR_SEG_TO_LIN( pdb->fileHandlesPtr ); |
| if ((handle < 0) || (handle >= (INT)pdb->nbFiles) || |
| ((unix_handle = FILE_GetUnixHandle( files[handle] )) == -1)) |
| { |
| DOS_ERROR( ER_InvalidHandle, EC_ProgramError, SA_Abort, EL_Disk ); |
| return -1; |
| } |
| return unix_handle; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_CloseAllFiles |
| * |
| * Close all open files of a given PDB. Used on task termination. |
| */ |
| void FILE_CloseAllFiles( HANDLE hPDB ) |
| { |
| BYTE *files; |
| WORD count; |
| PDB *pdb = (PDB *)GlobalLock( hPDB ); |
| int unix_handle; |
| |
| if (!pdb) return; |
| files = PTR_SEG_TO_LIN( pdb->fileHandlesPtr ); |
| dprintf_file(stddeb,"FILE_CloseAllFiles: closing %d files\n",pdb->nbFiles); |
| for (count = pdb->nbFiles; count > 0; count--, files++) |
| { |
| if (*files != 0xff) |
| { |
| if ((unix_handle = FILE_GetUnixHandle( *files )) != -1) |
| { |
| close( unix_handle ); |
| FILE_FreeDOSFile( *files ); |
| } |
| *files = 0xff; |
| } |
| } |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_SetDosError |
| * |
| * Set the DOS error code from errno. |
| */ |
| void FILE_SetDosError(void) |
| { |
| dprintf_file(stddeb, "FILE_SetDosError: errno = %d\n", errno ); |
| switch (errno) |
| { |
| case EAGAIN: |
| DOS_ERROR( ER_ShareViolation, EC_Temporary, SA_Retry, EL_Disk ); |
| break; |
| case EBADF: |
| DOS_ERROR( ER_InvalidHandle, EC_ProgramError, SA_Abort, EL_Disk ); |
| break; |
| case ENOSPC: |
| DOS_ERROR( ER_DiskFull, EC_MediaError, SA_Abort, EL_Disk ); |
| break; |
| case EACCES: |
| case EPERM: |
| case EROFS: |
| DOS_ERROR( ER_AccessDenied, EC_AccessDenied, SA_Abort, EL_Disk ); |
| break; |
| case EBUSY: |
| DOS_ERROR( ER_LockViolation, EC_AccessDenied, SA_Abort, EL_Disk ); |
| break; |
| case ENOENT: |
| DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk ); |
| break; |
| case EISDIR: |
| DOS_ERROR( ER_CanNotMakeDir, EC_AccessDenied, SA_Abort, EL_Unknown ); |
| break; |
| case ENFILE: |
| case EMFILE: |
| DOS_ERROR( ER_NoMoreFiles, EC_MediaError, SA_Abort, EL_Unknown ); |
| break; |
| case EEXIST: |
| DOS_ERROR( ER_FileExists, EC_Exists, SA_Abort, EL_Disk ); |
| break; |
| default: |
| perror( "int21: unknown errno" ); |
| DOS_ERROR( ER_GeneralFailure, EC_SystemFailure, SA_Abort, EL_Unknown ); |
| break; |
| } |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_OpenUnixFile |
| */ |
| static int FILE_OpenUnixFile( const char *name, int mode ) |
| { |
| int handle; |
| struct stat st; |
| |
| if ((handle = open( name, mode )) == -1) |
| { |
| if (Options.allowReadOnly && (mode == O_RDWR)) |
| { |
| if ((handle = open( name, O_RDONLY )) != -1) |
| fprintf( stderr, "Warning: could not open %s for writing, opening read-only.\n", name ); |
| } |
| } |
| if (handle != -1) /* Make sure it's not a directory */ |
| { |
| if ((fstat( handle, &st ) == -1)) |
| { |
| FILE_SetDosError(); |
| close( handle ); |
| handle = -1; |
| } |
| else if (S_ISDIR(st.st_mode)) |
| { |
| DOS_ERROR( ER_AccessDenied, EC_AccessDenied, SA_Abort, EL_Disk ); |
| close( handle ); |
| handle = -1; |
| } |
| } |
| return handle; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_Open |
| */ |
| int FILE_Open( LPCSTR path, int mode ) |
| { |
| const char *unixName; |
| |
| dprintf_file(stddeb, "FILE_Open: '%s' %04x\n", path, mode ); |
| if ((unixName = DOSFS_IsDevice( path )) != NULL) |
| { |
| dprintf_file( stddeb, "FILE_Open: opening device '%s'\n", unixName ); |
| if (!unixName[0]) /* Non-existing device */ |
| { |
| dprintf_file(stddeb, "FILE_Open: Non-existing device\n"); |
| DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk ); |
| return -1; |
| } |
| } |
| else if (!(unixName = DOSFS_GetUnixFileName( path, TRUE ))) return -1; |
| return FILE_OpenUnixFile( unixName, mode ); |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_Create |
| */ |
| int FILE_Create( LPCSTR path, int mode, int unique ) |
| { |
| const char *unixName; |
| int handle; |
| |
| dprintf_file(stddeb, "FILE_Create: '%s' %04x %d\n", path, mode, unique ); |
| |
| if ((unixName = DOSFS_IsDevice( path )) != NULL) |
| { |
| dprintf_file(stddeb, "FILE_Create: creating device '%s'!\n", unixName); |
| DOS_ERROR( ER_AccessDenied, EC_NotFound, SA_Abort, EL_Disk ); |
| return -1; |
| } |
| |
| if (!(unixName = DOSFS_GetUnixFileName( path, FALSE ))) return -1; |
| if ((handle = open( unixName, |
| O_CREAT | O_TRUNC | O_RDWR | (unique ? O_EXCL : 0), |
| mode )) == -1) |
| FILE_SetDosError(); |
| return handle; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_Unlink |
| */ |
| int FILE_Unlink( LPCSTR path ) |
| { |
| const char *unixName; |
| |
| dprintf_file(stddeb, "FILE_Unlink: '%s'\n", path ); |
| |
| if ((unixName = DOSFS_IsDevice( path )) != NULL) |
| { |
| dprintf_file(stddeb, "FILE_Unlink: removing device '%s'!\n", unixName); |
| DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk ); |
| return 0; |
| } |
| |
| if (!(unixName = DOSFS_GetUnixFileName( path, TRUE ))) return 0; |
| if (unlink( unixName ) == -1) |
| { |
| FILE_SetDosError(); |
| return 0; |
| } |
| return 1; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_Stat |
| * |
| * Stat a Unix path name. Return 1 if OK. |
| */ |
| int FILE_Stat( LPCSTR unixName, BYTE *pattr, DWORD *psize, |
| WORD *pdate, WORD *ptime ) |
| { |
| struct stat st; |
| |
| if (stat( unixName, &st ) == -1) |
| { |
| FILE_SetDosError(); |
| return 0; |
| } |
| if (pattr) *pattr = FA_ARCHIVE | (S_ISDIR(st.st_mode) ? FA_DIRECTORY : 0); |
| if (psize) *psize = S_ISDIR(st.st_mode) ? 0 : st.st_size; |
| DOSFS_ToDosDateTime( &st.st_mtime, pdate, ptime ); |
| return 1; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_Fstat |
| * |
| * Stat a DOS handle. Return 1 if OK. |
| */ |
| int FILE_Fstat( HFILE hFile, BYTE *pattr, DWORD *psize, |
| WORD *pdate, WORD *ptime ) |
| { |
| struct stat st; |
| int handle; |
| |
| if ((handle = FILE_GetUnixTaskHandle( hFile )) == -1) return 0; |
| if (fstat( handle, &st ) == -1) |
| { |
| FILE_SetDosError(); |
| return 0; |
| } |
| if (pattr) *pattr = FA_ARCHIVE | (S_ISDIR(st.st_mode) ? FA_DIRECTORY : 0); |
| if (psize) *psize = S_ISDIR(st.st_mode) ? 0 : st.st_size; |
| DOSFS_ToDosDateTime( &st.st_mtime, pdate, ptime ); |
| return 1; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_MakeDir |
| */ |
| int FILE_MakeDir( LPCSTR path ) |
| { |
| const char *unixName; |
| |
| dprintf_file(stddeb, "FILE_MakeDir: '%s'\n", path ); |
| |
| if ((unixName = DOSFS_IsDevice( path )) != NULL) |
| { |
| dprintf_file(stddeb, "FILE_MakeDir: device '%s'!\n", unixName); |
| DOS_ERROR( ER_AccessDenied, EC_AccessDenied, SA_Abort, EL_Disk ); |
| return 0; |
| } |
| if (!(unixName = DOSFS_GetUnixFileName( path, FALSE ))) return 0; |
| if ((mkdir( unixName, 0777 ) == -1) && (errno != EEXIST)) |
| { |
| FILE_SetDosError(); |
| return 0; |
| } |
| return 1; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_RemoveDir |
| */ |
| int FILE_RemoveDir( LPCSTR path ) |
| { |
| const char *unixName; |
| |
| dprintf_file(stddeb, "FILE_RemoveDir: '%s'\n", path ); |
| |
| if ((unixName = DOSFS_IsDevice( path )) != NULL) |
| { |
| dprintf_file(stddeb, "FILE_RemoveDir: device '%s'!\n", unixName); |
| DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk ); |
| return 0; |
| } |
| if (!(unixName = DOSFS_GetUnixFileName( path, TRUE ))) return 0; |
| if (rmdir( unixName ) == -1) |
| { |
| FILE_SetDosError(); |
| return 0; |
| } |
| return 1; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_Dup |
| * |
| * dup() function for DOS handles. |
| */ |
| HFILE FILE_Dup( HFILE hFile ) |
| { |
| int handle, newhandle; |
| HFILE dosHandle; |
| |
| if ((handle = FILE_GetUnixTaskHandle( hFile )) == -1) return HFILE_ERROR; |
| dprintf_file( stddeb, "FILE_Dup for handle %d\n",handle); |
| if ((newhandle = dup(handle)) == -1) |
| { |
| FILE_SetDosError(); |
| return HFILE_ERROR; |
| } |
| if ((dosHandle = FILE_AllocTaskHandle( newhandle )) == HFILE_ERROR) |
| close( newhandle ); |
| dprintf_file( stddeb, "FILE_Dup return handle %d\n",dosHandle); |
| return dosHandle; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_Dup2 |
| * |
| * dup2() function for DOS handles. |
| */ |
| HFILE FILE_Dup2( HFILE hFile1, HFILE hFile2 ) |
| { |
| PDB *pdb = (PDB *)GlobalLock( GetCurrentPDB() ); |
| BYTE *files; |
| int handle, newhandle; |
| |
| if ((handle = FILE_GetUnixTaskHandle( hFile1 )) == -1) return HFILE_ERROR; |
| dprintf_file( stddeb, "FILE_Dup2 for handle %d\n",handle); |
| if ((hFile2 < 0) || (hFile2 >= (INT)pdb->nbFiles)) |
| { |
| DOS_ERROR( ER_InvalidHandle, EC_ProgramError, SA_Abort, EL_Disk ); |
| return HFILE_ERROR; |
| } |
| |
| if ((newhandle = dup(handle)) == -1) |
| { |
| FILE_SetDosError(); |
| return HFILE_ERROR; |
| } |
| if (newhandle >= 0xff) |
| { |
| DOS_ERROR( ER_TooManyOpenFiles, EC_ProgramError, SA_Abort, EL_Disk ); |
| close( newhandle ); |
| return HFILE_ERROR; |
| } |
| files = PTR_SEG_TO_LIN( pdb->fileHandlesPtr ); |
| if (files[hFile2] != 0xff) |
| { |
| dprintf_file( stddeb, "FILE_Dup2 closing old handle2 %d\n", |
| files[hFile2]); |
| close( files[hFile2] ); |
| } |
| files[hFile2] = (BYTE)newhandle; |
| dprintf_file( stddeb, "FILE_Dup2 return handle2 %d\n",newhandle); |
| return hFile2; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_OpenFile |
| * |
| * Implementation of API function OpenFile(). Returns a Unix file handle. |
| */ |
| int FILE_OpenFile( LPCSTR name, OFSTRUCT *ofs, UINT mode ) |
| { |
| const char *unixName, *dosName; |
| char *p; |
| int handle, len, i, unixMode; |
| struct stat st; |
| |
| ofs->cBytes = sizeof(OFSTRUCT); |
| ofs->nErrCode = 0; |
| if (mode & OF_REOPEN) name = ofs->szPathName; |
| dprintf_file( stddeb, "FILE_Openfile: %s %04x\n", name, mode ); |
| |
| /* OF_PARSE simply fills the structure */ |
| |
| if (mode & OF_PARSE) |
| { |
| if (!(dosName = DOSFS_GetDosTrueName( name, FALSE ))) |
| { |
| ofs->nErrCode = DOS_ExtendedError; |
| dprintf_file( stddeb, "FILE_Openfile: %s return = -1\n", name); |
| return -1; |
| } |
| lstrcpyn( ofs->szPathName, dosName, sizeof(ofs->szPathName) ); |
| ofs->fFixedDisk = (GetDriveType( dosName[0]-'A' ) != DRIVE_REMOVABLE); |
| dprintf_file( stddeb, "FILE_Openfile: %s return = 0\n", name); |
| return 0; |
| } |
| |
| /* OF_CREATE is completely different from all other options, so |
| handle it first */ |
| |
| if (mode & OF_CREATE) |
| { |
| if ((unixName = DOSFS_GetUnixFileName( name, FALSE )) == NULL) |
| { |
| ofs->nErrCode = DOS_ExtendedError; |
| dprintf_file( stddeb, "FILE_Openfile: %s return = -1\n", name); |
| return -1; |
| } |
| dprintf_file( stddeb, "FILE_OpenFile: creating '%s'\n", unixName ); |
| handle = open( unixName, O_TRUNC | O_RDWR | O_CREAT, 0666 ); |
| if (handle == -1) |
| { |
| FILE_SetDosError(); |
| ofs->nErrCode = DOS_ExtendedError; |
| dprintf_file( stddeb, "FILE_Openfile: %s return = -1\n", name); |
| return -1; |
| } |
| lstrcpyn( ofs->szPathName, DOSFS_GetDosTrueName( name, FALSE ), |
| sizeof(ofs->szPathName) ); |
| dprintf_file( stddeb, "FILE_Openfile: %s return = %d \n", name, handle); |
| return handle; |
| } |
| |
| /* Now look for the file */ |
| |
| /* First try the current directory */ |
| |
| lstrcpyn( ofs->szPathName, name, sizeof(ofs->szPathName) ); |
| if ((unixName = DOSFS_GetUnixFileName( ofs->szPathName, TRUE )) != NULL) |
| goto found; |
| |
| /* Now try some different paths if none was specified */ |
| |
| if ((mode & OF_SEARCH) && !(mode & OF_REOPEN)) |
| { |
| if (name[1] == ':') name += 2; |
| if ((p = strrchr( name, '\\' ))) name = p + 1; |
| if ((p = strrchr( name, '/' ))) name = p + 1; |
| if (!name[0]) goto not_found; |
| } |
| else |
| { |
| if ((name[1] == ':') || strchr( name, '/' ) || strchr( name, '\\' )) |
| goto not_found; |
| } |
| |
| if ((len = sizeof(ofs->szPathName) - strlen(name) - 1) < 0) goto not_found; |
| |
| /* Try the Windows directory */ |
| |
| GetWindowsDirectory( ofs->szPathName, len ); |
| strcat( ofs->szPathName, "\\" ); |
| strcat( ofs->szPathName, name ); |
| if ((unixName = DOSFS_GetUnixFileName( ofs->szPathName, TRUE )) != NULL) |
| goto found; |
| |
| /* Try the Windows system directory */ |
| |
| GetSystemDirectory( ofs->szPathName, len ); |
| strcat( ofs->szPathName, "\\" ); |
| strcat( ofs->szPathName, name ); |
| if ((unixName = DOSFS_GetUnixFileName( ofs->szPathName, TRUE )) != NULL) |
| goto found; |
| |
| /* Try the path of the current executable */ |
| |
| if (GetCurrentTask()) |
| { |
| GetModuleFileName( GetCurrentTask(), ofs->szPathName, len ); |
| if ((p = strrchr( ofs->szPathName, '\\' ))) |
| { |
| strcpy( p + 1, name ); |
| if ((unixName = DOSFS_GetUnixFileName( ofs->szPathName, TRUE ))) |
| goto found; |
| } |
| } |
| |
| /* Try all directories in path */ |
| |
| for (i = 0; ; i++) |
| { |
| if (!DIR_GetDosPath( i, ofs->szPathName, len )) break; |
| strcat( ofs->szPathName, "\\" ); |
| strcat( ofs->szPathName, name ); |
| if ((unixName = DOSFS_GetUnixFileName( ofs->szPathName, TRUE)) != NULL) |
| goto found; |
| } |
| |
| not_found: |
| dprintf_file( stddeb, "FILE_OpenFile: '%s' not found\n", name ); |
| DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk ); |
| ofs->nErrCode = ER_FileNotFound; |
| dprintf_file( stddeb, "FILE_Openfile: %s return =-1\n", name); |
| return -1; |
| |
| found: |
| dprintf_file( stddeb, "FILE_OpenFile: found '%s'\n", unixName ); |
| lstrcpyn( ofs->szPathName, DOSFS_GetDosTrueName( ofs->szPathName, FALSE ), |
| sizeof(ofs->szPathName) ); |
| |
| if (mode & OF_DELETE) |
| { |
| if (unlink( unixName ) == -1) goto not_found; |
| dprintf_file( stddeb, "FILE_Openfile: %s return = 0\n", name); |
| return 0; |
| } |
| |
| switch(mode & 3) |
| { |
| case OF_WRITE: |
| unixMode = O_WRONLY; break; |
| case OF_READWRITE: |
| unixMode = O_RDWR; break; |
| case OF_READ: |
| default: |
| unixMode = O_RDONLY; break; |
| } |
| |
| if ((handle = FILE_OpenUnixFile( unixName, unixMode )) == -1) |
| goto not_found; |
| |
| if (fstat( handle, &st ) != -1) |
| { |
| if ((mode & OF_VERIFY) && (mode & OF_REOPEN)) |
| { |
| if (memcmp( ofs->reserved, &st.st_mtime, sizeof(ofs->reserved) )) |
| { |
| dprintf_file( stddeb, "FILE_Openfile: %s return = -1\n", name); |
| close( handle ); |
| return -1; |
| } |
| } |
| memcpy( ofs->reserved, &st.st_mtime, sizeof(ofs->reserved) ); |
| } |
| |
| if (mode & OF_EXIST) |
| { |
| close( handle ); |
| return 0; |
| } |
| dprintf_file( stddeb, "FILE_Openfile: %s return = %d\n", name,handle); |
| |
| return handle; |
| } |
| |
| |
| /*********************************************************************** |
| * FILE_Read |
| */ |
| LONG FILE_Read( HFILE hFile, LPSTR buffer, LONG count ) |
| { |
| int handle; |
| LONG result; |
| |
| dprintf_file( stddeb, "FILE_Read: %d %p %ld\n", hFile, buffer, count ); |
| if ((handle = FILE_GetUnixTaskHandle( hFile )) == -1) return -1; |
| if (!count) return 0; |
| if ((result = read( handle, buffer, count )) == -1) FILE_SetDosError(); |
| return result; |
| } |
| |
| |
| /*********************************************************************** |
| * GetTempFileName (KERNEL.97) |
| */ |
| INT GetTempFileName( BYTE drive, LPCSTR prefix, UINT unique, LPSTR buffer ) |
| { |
| int i, handle; |
| UINT num = unique ? (unique & 0xffff) : time(NULL) & 0xffff; |
| char *p; |
| |
| if (drive & TF_FORCEDRIVE) |
| { |
| sprintf( buffer, "%c:", drive & ~TF_FORCEDRIVE ); |
| } |
| else |
| { |
| DIR_GetTempDosDir( buffer, 132 ); /* buffer must be at least 144 */ |
| strcat( buffer, "\\" ); |
| } |
| |
| p = buffer + strlen(buffer); |
| for (i = 3; (i > 0) && (*prefix); i--) *p++ = *prefix++; |
| sprintf( p, "%04x.tmp", num ); |
| |
| if (unique) |
| { |
| lstrcpyn( buffer, DOSFS_GetDosTrueName( buffer, FALSE ), 144 ); |
| dprintf_file( stddeb, "GetTempFileName: returning %s\n", buffer ); |
| return unique; |
| } |
| |
| /* Now try to create it */ |
| |
| do |
| { |
| if ((handle = FILE_Create( buffer, 0666, TRUE )) != -1) |
| { /* We created it */ |
| dprintf_file( stddeb, "GetTempFileName: created %s\n", buffer ); |
| close( handle ); |
| break; |
| } |
| if (DOS_ExtendedError != ER_FileExists) break; /* No need to go on */ |
| num++; |
| sprintf( p, "%04x.tmp", num ); |
| } while (num != (unique & 0xffff)); |
| |
| lstrcpyn( buffer, DOSFS_GetDosTrueName( buffer, FALSE ), 144 ); |
| dprintf_file( stddeb, "GetTempFileName: returning %s\n", buffer ); |
| return num; |
| } |
| |
| |
| /*********************************************************************** |
| * OpenFile (KERNEL.74) |
| */ |
| HFILE OpenFile( LPCSTR name, OFSTRUCT *ofs, UINT mode ) |
| { |
| int unixHandle; |
| HFILE handle; |
| |
| dprintf_file( stddeb, "OpenFile %s \n",name); |
| if ((unixHandle = FILE_OpenFile( name, ofs, mode )) == -1) |
| return HFILE_ERROR; |
| if ((handle = FILE_AllocTaskHandle( unixHandle )) == HFILE_ERROR) |
| { |
| ofs->nErrCode = DOS_ExtendedError; |
| if (unixHandle) close( unixHandle ); |
| } |
| if (!unixHandle) FILE_FreeTaskHandle( handle ); |
| return handle; |
| } |
| |
| |
| /*********************************************************************** |
| * _lclose (KERNEL.81) |
| */ |
| HFILE _lclose( HFILE hFile ) |
| { |
| int handle; |
| |
| |
| if ((handle = FILE_GetUnixTaskHandle( hFile )) == -1) return HFILE_ERROR; |
| dprintf_file( stddeb, "_lclose: doshandle %d unixhandle %d\n", hFile,handle ); |
| if (handle <= 2) |
| { |
| fprintf( stderr, "_lclose: internal error: closing handle %d\n", handle ); |
| exit(1); |
| } |
| FILE_FreeTaskHandle( hFile ); |
| close( handle ); |
| return 0; |
| } |
| |
| |
| /*********************************************************************** |
| * _lread (KERNEL.82) |
| */ |
| INT _lread( HFILE hFile, SEGPTR buffer, WORD count ) |
| { |
| return (INT)_hread( hFile, buffer, (LONG)count ); |
| } |
| |
| |
| /*********************************************************************** |
| * _lcreat (KERNEL.83) |
| */ |
| INT _lcreat( LPCSTR path, INT attr ) |
| { |
| int unixHandle, mode; |
| HFILE handle; |
| |
| dprintf_file( stddeb, "_lcreat: %s %02x\n", path, attr ); |
| mode = (attr & 1) ? 0444 : 0666; |
| if ((unixHandle = FILE_Create( path, mode, FALSE )) == -1) |
| return HFILE_ERROR; |
| if ((handle = FILE_AllocTaskHandle( unixHandle )) == HFILE_ERROR) |
| close( unixHandle ); |
| return handle; |
| } |
| |
| |
| /*********************************************************************** |
| * _lcreat_uniq (Not a Windows API) |
| */ |
| INT _lcreat_uniq( LPCSTR path, INT attr ) |
| { |
| int unixHandle, mode; |
| HFILE handle; |
| |
| dprintf_file( stddeb, "_lcreat: %s %02x\n", path, attr ); |
| mode = (attr & 1) ? 0444 : 0666; |
| if ((unixHandle = FILE_Create( path, mode, TRUE )) == -1) |
| return HFILE_ERROR; |
| if ((handle = FILE_AllocTaskHandle( unixHandle )) == HFILE_ERROR) |
| close( unixHandle ); |
| return handle; |
| } |
| |
| |
| /*********************************************************************** |
| * _llseek (KERNEL.84) |
| */ |
| LONG _llseek( HFILE hFile, LONG lOffset, INT nOrigin ) |
| { |
| int handle, origin, result; |
| |
| dprintf_file( stddeb, "_llseek: handle %d, offset %ld, origin %d\n", |
| hFile, lOffset, nOrigin); |
| |
| if ((handle = FILE_GetUnixTaskHandle( hFile )) == -1) return HFILE_ERROR; |
| switch(nOrigin) |
| { |
| case 1: origin = SEEK_CUR; break; |
| case 2: origin = SEEK_END; break; |
| default: origin = SEEK_SET; break; |
| } |
| |
| if ((result = lseek( handle, lOffset, origin )) == -1) FILE_SetDosError(); |
| return (result == -1) ? HFILE_ERROR : result; |
| } |
| |
| |
| /*********************************************************************** |
| * _lopen (KERNEL.85) |
| */ |
| HFILE _lopen( LPCSTR path, INT mode ) |
| { |
| int unixHandle; |
| int unixMode; |
| HFILE handle; |
| |
| dprintf_file(stddeb, "_lopen('%s',%04x)\n", path, mode ); |
| |
| switch(mode & 3) |
| { |
| case OF_WRITE: |
| unixMode = O_WRONLY | O_TRUNC; |
| break; |
| case OF_READWRITE: |
| unixMode = O_RDWR; |
| break; |
| case OF_READ: |
| default: |
| unixMode = O_RDONLY; |
| break; |
| } |
| if ((unixHandle = FILE_Open( path, unixMode )) == -1) return HFILE_ERROR; |
| if ((handle = FILE_AllocTaskHandle( unixHandle )) == HFILE_ERROR) |
| close( unixHandle ); |
| return handle; |
| } |
| |
| |
| /*********************************************************************** |
| * _lwrite (KERNEL.86) |
| */ |
| INT _lwrite( HFILE hFile, LPCSTR buffer, WORD count ) |
| { |
| return (INT)_hwrite( hFile, buffer, (LONG)count ); |
| } |
| |
| |
| /*********************************************************************** |
| * _hread (KERNEL.349) |
| */ |
| LONG _hread( HFILE hFile, SEGPTR buffer, LONG count ) |
| { |
| #ifndef WINELIB |
| LONG maxlen; |
| |
| dprintf_file( stddeb, "_hread: %d %08lx %ld\n", |
| hFile, (DWORD)buffer, count ); |
| |
| /* Some programs pass a count larger than the allocated buffer */ |
| maxlen = GetSelectorLimit( SELECTOROF(buffer) ) - OFFSETOF(buffer) + 1; |
| if (count > maxlen) count = maxlen; |
| #endif |
| return FILE_Read( hFile, PTR_SEG_TO_LIN(buffer), count ); |
| } |
| |
| |
| /*********************************************************************** |
| * _hwrite (KERNEL.350) |
| */ |
| LONG _hwrite( HFILE hFile, LPCSTR buffer, LONG count ) |
| { |
| int handle; |
| LONG result; |
| |
| dprintf_file( stddeb, "_hwrite: %d %p %ld\n", hFile, buffer, count ); |
| |
| if ((handle = FILE_GetUnixTaskHandle( hFile )) == -1) return HFILE_ERROR; |
| |
| if (count == 0) /* Expand or truncate at current position */ |
| result = ftruncate( handle, lseek( handle, 0, SEEK_CUR ) ); |
| else |
| result = write( handle, buffer, count ); |
| |
| if (result == -1) FILE_SetDosError(); |
| return (result == -1) ? HFILE_ERROR : result; |
| } |
| |
| |
| /*********************************************************************** |
| * SetHandleCount (KERNEL.199) |
| */ |
| WORD SetHandleCount( WORD count ) |
| { |
| HANDLE hPDB = GetCurrentPDB(); |
| PDB *pdb = (PDB *)GlobalLock( hPDB ); |
| BYTE *files = PTR_SEG_TO_LIN( pdb->fileHandlesPtr ); |
| WORD i; |
| |
| dprintf_file( stddeb, "SetHandleCount(%d)\n", count ); |
| |
| if (count < 20) count = 20; /* No point in going below 20 */ |
| else if (count > 254) count = 254; |
| |
| /* If shrinking the table, make sure all extra file handles are closed */ |
| if (count < pdb->nbFiles) |
| { |
| for (i = count; i < pdb->nbFiles; i++) |
| if (files[i] != 0xff) /* File open */ |
| { |
| DOS_ERROR( ER_TooManyOpenFiles, EC_ProgramError, |
| SA_Abort, EL_Disk ); |
| return pdb->nbFiles; |
| } |
| } |
| |
| if (count == 20) |
| { |
| if (pdb->nbFiles > 20) |
| { |
| memcpy( pdb->fileHandles, files, 20 ); |
| #ifdef WINELIB |
| GlobalFree( pdb->fileHandlesPtr ); |
| pdb->fileHandlesPtr = pdb->fileHandles; |
| #else |
| GlobalFree( GlobalHandle( SELECTOROF(pdb->fileHandlesPtr) )); |
| pdb->fileHandlesPtr = (SEGPTR)MAKELONG( 0x18, |
| GlobalHandleToSel( hPDB ) ); |
| #endif |
| pdb->nbFiles = 20; |
| } |
| } |
| else /* More than 20, need a new file handles table */ |
| { |
| BYTE *newfiles; |
| HANDLE newhandle = GlobalAlloc( GMEM_MOVEABLE, count ); |
| if (!newhandle) |
| { |
| DOS_ERROR( ER_OutOfMemory, EC_OutOfResource, SA_Abort, EL_Memory ); |
| return pdb->nbFiles; |
| } |
| newfiles = (BYTE *)GlobalLock( newhandle ); |
| if (count > pdb->nbFiles) |
| { |
| memcpy( newfiles, files, pdb->nbFiles ); |
| memset( newfiles + pdb->nbFiles, 0xff, count - pdb->nbFiles ); |
| } |
| else memcpy( newfiles, files, count ); |
| #ifdef WINELIB |
| if (pdb->nbFiles > 20) GlobalFree( pdb->fileHandlesPtr ); |
| #else |
| if (pdb->nbFiles > 20) |
| GlobalFree( GlobalHandle( SELECTOROF(pdb->fileHandlesPtr) )); |
| #endif |
| pdb->fileHandlesPtr = WIN16_GlobalLock( newhandle ); |
| pdb->nbFiles = count; |
| } |
| return pdb->nbFiles; |
| } |
