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Defines | Functions | Variables
w95io.c File Reference
#include "primpl.h"
#include <direct.h>
#include <mbstring.h>

Go to the source code of this file.

Defines

#define GetFileFromDIR(d)   (d)->d_entry.cFileName
#define FileIsHidden(d)   ((d)->d_entry.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN)
#define _PR_IS_SLASH(ch)   ((ch) == '/' || (ch) == '\\')

Functions

static void InitUnicodeSupport (void)
static PRBool IsPrevCharSlash (const char *str, const char *current)
void _PR_MD_INIT_IO ()
PRStatus _PR_MD_WAIT (PRThread *thread, PRIntervalTime ticks)
PRStatus _PR_MD_WAKEUP_WAITER (PRThread *thread)
PRInt32 _PR_MD_OPEN (const char *name, PRIntn osflags, int mode)
PRInt32 _PR_MD_OPEN_FILE (const char *name, PRIntn osflags, int mode)
PRInt32 _PR_MD_READ (PRFileDesc *fd, void *buf, PRInt32 len)
PRInt32 _PR_MD_WRITE (PRFileDesc *fd, const void *buf, PRInt32 len)
PROffset32 _PR_MD_LSEEK (PRFileDesc *fd, PROffset32 offset, PRSeekWhence whence)
PROffset64 _PR_MD_LSEEK64 (PRFileDesc *fd, PROffset64 offset, PRSeekWhence whence)
PRInt32 _PR_MD_FSYNC (PRFileDesc *fd)
PRInt32 _MD_CloseFile (PRInt32 osfd)
void FlipSlashes (char *cp, int len)
PRStatus _PR_MD_CLOSE_DIR (_MDDir *d)
PRStatus _PR_MD_OPEN_DIR (_MDDir *d, const char *name)
char * _PR_MD_READ_DIR (_MDDir *d, PRIntn flags)
PRInt32 _PR_MD_DELETE (const char *name)
void _PR_FileTimeToPRTime (const FILETIME *filetime, PRTime *prtm)
PRInt32 _PR_MD_STAT (const char *fn, struct stat *info)
static PRBool IsRootDirectory (char *fn, size_t buflen)
PRInt32 _PR_MD_GETFILEINFO64 (const char *fn, PRFileInfo64 *info)
PRInt32 _PR_MD_GETFILEINFO (const char *fn, PRFileInfo *info)
PRInt32 _PR_MD_GETOPENFILEINFO64 (const PRFileDesc *fd, PRFileInfo64 *info)
PRInt32 _PR_MD_GETOPENFILEINFO (const PRFileDesc *fd, PRFileInfo *info)
PRStatus _PR_MD_SET_FD_INHERITABLE (PRFileDesc *fd, PRBool inheritable)
void _PR_MD_INIT_FD_INHERITABLE (PRFileDesc *fd, PRBool imported)
void _PR_MD_QUERY_FD_INHERITABLE (PRFileDesc *fd)
PRInt32 _PR_MD_RENAME (const char *from, const char *to)
PRInt32 _PR_MD_ACCESS (const char *name, PRAccessHow how)
PRInt32 _PR_MD_MKDIR (const char *name, PRIntn mode)
PRInt32 _PR_MD_MAKE_DIR (const char *name, PRIntn mode)
PRInt32 _PR_MD_RMDIR (const char *name)
PRStatus _PR_MD_LOCKFILE (PRInt32 f)
PRStatus _PR_MD_TLOCKFILE (PRInt32 f)
PRStatus _PR_MD_UNLOCKFILE (PRInt32 f)
PRInt32 _PR_MD_PIPEAVAILABLE (PRFileDesc *fd)

Variables

static DWORD fileAccessTable []
static DWORD dirAccessTable []
static const PRTime _pr_filetime_offset = 116444736000000000i64
PRBool _pr_useUnicode = PR_FALSE

Define Documentation

#define _PR_IS_SLASH (   ch)    ((ch) == '/' || (ch) == '\\')

Definition at line 673 of file w95io.c.

#define FileIsHidden (   d)    ((d)->d_entry.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN)

Definition at line 465 of file w95io.c.

#define GetFileFromDIR (   d)    (d)->d_entry.cFileName

Definition at line 464 of file w95io.c.


Function Documentation

Definition at line 452 of file w95io.c.

{
    PRInt32 rv;
    
    rv = (CloseHandle((HANDLE)osfd))?0:-1;
       if (rv == -1)
              _PR_MD_MAP_CLOSE_ERROR(GetLastError());
    return rv;
}
void _PR_FileTimeToPRTime ( const FILETIME *  filetime,
PRTime prtm 
)

Definition at line 587 of file w95io.c.

{
    PR_ASSERT(sizeof(FILETIME) == sizeof(PRTime));
    CopyMemory(prtm, filetime, sizeof(PRTime));
#if defined(__MINGW32__)
    *prtm = (*prtm - _pr_filetime_offset) / 10LL;
#else
    *prtm = (*prtm - _pr_filetime_offset) / 10i64;
#endif

#ifdef DEBUG
    /* Doublecheck our calculation. */
    {
        SYSTEMTIME systime;
        PRExplodedTime etm;
        PRTime cmp; /* for comparison */
        BOOL rv;

        rv = FileTimeToSystemTime(filetime, &systime);
        PR_ASSERT(0 != rv);

        /*
         * PR_ImplodeTime ignores wday and yday.
         */
        etm.tm_usec = systime.wMilliseconds * PR_USEC_PER_MSEC;
        etm.tm_sec = systime.wSecond;
        etm.tm_min = systime.wMinute;
        etm.tm_hour = systime.wHour;
        etm.tm_mday = systime.wDay;
        etm.tm_month = systime.wMonth - 1;
        etm.tm_year = systime.wYear;
        /*
         * It is not well-documented what time zone the FILETIME's
         * are in.  WIN32_FIND_DATA is documented to be in UTC (GMT).
         * But BY_HANDLE_FILE_INFORMATION is unclear about this.
         * By our best judgement, we assume that FILETIME is in UTC.
         */
        etm.tm_params.tp_gmt_offset = 0;
        etm.tm_params.tp_dst_offset = 0;
        cmp = PR_ImplodeTime(&etm);

        /*
         * SYSTEMTIME is in milliseconds precision, so we convert PRTime's
         * microseconds to milliseconds before doing the comparison.
         */
        PR_ASSERT((cmp / PR_USEC_PER_MSEC) == (*prtm / PR_USEC_PER_MSEC));
    }
#endif /* DEBUG */
}

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PRInt32 _PR_MD_ACCESS ( const char *  name,
PRAccessHow  how 
)

Definition at line 988 of file w95io.c.

{
PRInt32 rv;
    switch (how) {
      case PR_ACCESS_WRITE_OK:
        rv = _access(name, 02);
              break;
      case PR_ACCESS_READ_OK:
        rv = _access(name, 04);
              break;
      case PR_ACCESS_EXISTS:
        return _access(name, 00);
              break;
      default:
              PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
              return -1;
    }
       if (rv < 0)
              _PR_MD_MAP_ACCESS_ERROR(errno);
    return rv;
}

Definition at line 486 of file w95io.c.

{
    if ( d ) {
        if (FindClose(d->d_hdl)) {
        d->magic = (PRUint32)-1;
        return PR_SUCCESS;
              } else {
                     _PR_MD_MAP_CLOSEDIR_ERROR(GetLastError());
              return PR_FAILURE;
              }
    }
    PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
    return PR_FAILURE;
}
PRInt32 _PR_MD_DELETE ( const char *  name)

Definition at line 576 of file w95io.c.

{
    if (DeleteFile(name)) {
        return 0;
    } else {
              _PR_MD_MAP_DELETE_ERROR(GetLastError());
        return -1;
    }
}

Definition at line 420 of file w95io.c.

{
    /*
     * From the documentation:
     *
     *    On Windows NT, the function FlushFileBuffers fails if hFile
     *    is a handle to console output. That is because console
     *    output is not buffered. The function returns FALSE, and
     *    GetLastError returns ERROR_INVALID_HANDLE.
     *
     * On the other hand, on Win95, it returns without error.  I cannot
     * assume that 0, 1, and 2 are console, because if someone closes
     * System.out and then opens a file, they might get file descriptor
     * 1.  An error on *that* version of 1 should be reported, whereas
     * an error on System.out (which was the original 1) should be
     * ignored.  So I use isatty() to ensure that such an error was due
     * to this bogosity, and if it was, I ignore the error.
     */

    BOOL ok = FlushFileBuffers((HANDLE)fd->secret->md.osfd);

    if (!ok) {
       DWORD err = GetLastError();
       if (err != ERROR_ACCESS_DENIED) {  // from winerror.h
                     _PR_MD_MAP_FSYNC_ERROR(err);
           return -1;
       }
    }
    return 0;
}
PRInt32 _PR_MD_GETFILEINFO ( const char *  fn,
PRFileInfo info 
)

Definition at line 874 of file w95io.c.

{
    PRFileInfo64 info64;
    PRInt32 rv = _PR_MD_GETFILEINFO64(fn, &info64);
    if (0 == rv)
    {
        info->type = info64.type;
        info->size = (PRUint32) info64.size;
        info->modifyTime = info64.modifyTime;
        info->creationTime = info64.creationTime;
    }
    return rv;
}
PRInt32 _PR_MD_GETFILEINFO64 ( const char *  fn,
PRFileInfo64 info 
)

Definition at line 775 of file w95io.c.

{
    HANDLE hFindFile;
    WIN32_FIND_DATA findFileData;
    char pathbuf[MAX_PATH + 1];
    
    if (NULL == fn || '\0' == *fn) {
        PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
        return -1;
    }

    /*
     * FindFirstFile() expands wildcard characters.  So
     * we make sure the pathname contains no wildcard.
     */
    if (NULL != _mbspbrk(fn, "?*")) {
        PR_SetError(PR_FILE_NOT_FOUND_ERROR, 0);
        return -1;
    }

    hFindFile = FindFirstFile(fn, &findFileData);
    if (INVALID_HANDLE_VALUE == hFindFile) {
        DWORD len;
        char *filePart;

        /*
         * FindFirstFile() does not work correctly on root directories.
         * It also doesn't work correctly on a pathname that ends in a
         * slash.  So we first check to see if the pathname specifies a
         * root directory.  If not, and if the pathname ends in a slash,
         * we remove the final slash and try again.
         */

        /*
         * If the pathname does not contain ., \, and /, it cannot be
         * a root directory or a pathname that ends in a slash.
         */
        if (NULL == _mbspbrk(fn, ".\\/")) {
            _PR_MD_MAP_OPENDIR_ERROR(GetLastError());
            return -1;
        } 
        len = GetFullPathName(fn, sizeof(pathbuf), pathbuf,
                &filePart);
        if (0 == len) {
            _PR_MD_MAP_OPENDIR_ERROR(GetLastError());
            return -1;
        }
        if (len > sizeof(pathbuf)) {
            PR_SetError(PR_NAME_TOO_LONG_ERROR, 0);
            return -1;
        }
        if (IsRootDirectory(pathbuf, sizeof(pathbuf))) {
            info->type = PR_FILE_DIRECTORY;
            info->size = 0;
            /*
             * These timestamps don't make sense for root directories.
             */
            info->modifyTime = 0;
            info->creationTime = 0;
            return 0;
        }
        if (!IsPrevCharSlash(pathbuf, pathbuf + len)) {
            _PR_MD_MAP_OPENDIR_ERROR(GetLastError());
            return -1;
        } else {
            pathbuf[len - 1] = '\0';
            hFindFile = FindFirstFile(pathbuf, &findFileData);
            if (INVALID_HANDLE_VALUE == hFindFile) {
                _PR_MD_MAP_OPENDIR_ERROR(GetLastError());
                return -1;
            }
        }
    }

    FindClose(hFindFile);

    if (findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
        info->type = PR_FILE_DIRECTORY;
    } else {
        info->type = PR_FILE_FILE;
    }

    info->size = findFileData.nFileSizeHigh;
    info->size = (info->size << 32) + findFileData.nFileSizeLow;

    _PR_FileTimeToPRTime(&findFileData.ftLastWriteTime, &info->modifyTime);

    if (0 == findFileData.ftCreationTime.dwLowDateTime &&
            0 == findFileData.ftCreationTime.dwHighDateTime) {
        info->creationTime = info->modifyTime;
    } else {
        _PR_FileTimeToPRTime(&findFileData.ftCreationTime,
                &info->creationTime);
    }

    return 0;
}

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Definition at line 916 of file w95io.c.

{
    PRFileInfo64 info64;
    int rv = _PR_MD_GETOPENFILEINFO64(fd, &info64);
    if (0 == rv)
    {
        info->type = info64.type;
        info->modifyTime = info64.modifyTime;
        info->creationTime = info64.creationTime;
        LL_L2I(info->size, info64.size);
    }
    return rv;
}

Definition at line 889 of file w95io.c.

{
    int rv;

    BY_HANDLE_FILE_INFORMATION hinfo;

    rv = GetFileInformationByHandle((HANDLE)fd->secret->md.osfd, &hinfo);
    if (rv == FALSE) {
              _PR_MD_MAP_FSTAT_ERROR(GetLastError());
        return -1;
       }

    if (hinfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
        info->type = PR_FILE_DIRECTORY;
    else
        info->type = PR_FILE_FILE;

    info->size = hinfo.nFileSizeHigh;
    info->size = (info->size << 32) + hinfo.nFileSizeLow;

    _PR_FileTimeToPRTime(&hinfo.ftLastWriteTime, &(info->modifyTime) );
    _PR_FileTimeToPRTime(&hinfo.ftCreationTime, &(info->creationTime) );

    return 0;
}

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Definition at line 951 of file w95io.c.

Definition at line 89 of file w95io.c.

{
    WORD WSAVersion = 0x0101;
    WSADATA WSAData;
    int err;

    err = WSAStartup( WSAVersion, &WSAData );
    PR_ASSERT(0 == err);

#ifdef DEBUG
    /* Doublecheck _pr_filetime_offset's hard-coded value is correct. */
    {
        SYSTEMTIME systime;
        union {
           PRTime prt;
           FILETIME ft;
        } filetime;
        BOOL rv;

        systime.wYear = 1970;
        systime.wMonth = 1;
        /* wDayOfWeek is ignored */
        systime.wDay = 1;
        systime.wHour = 0;
        systime.wMinute = 0;
        systime.wSecond = 0;
        systime.wMilliseconds = 0;

        rv = SystemTimeToFileTime(&systime, &filetime.ft);
        PR_ASSERT(0 != rv);
        PR_ASSERT(filetime.prt == _pr_filetime_offset);
    }
#endif /* DEBUG */

    _PR_NT_InitSids();

    InitUnicodeSupport();

    _PR_MD_InitSockets();
}

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Definition at line 1062 of file w95io.c.

{
    PRStatus  rc = PR_SUCCESS;
       DWORD     rv;

       rv = LockFile( (HANDLE)f,
              0l, 0l,
              0x0l, 0xffffffffl ); 
       if ( rv == 0 ) {
        DWORD rc = GetLastError();
        PR_LOG( _pr_io_lm, PR_LOG_ERROR,
            ("_PR_MD_LOCKFILE() failed. Error: %d", rc ));
        rc = PR_FAILURE;
    }

    return rc;
} /* end _PR_MD_LOCKFILE() */
PROffset32 _PR_MD_LSEEK ( PRFileDesc fd,
PROffset32  offset,
PRSeekWhence  whence 
)

Definition at line 348 of file w95io.c.

{
    DWORD moveMethod;
    PROffset32 rv;

    switch (whence) {
        case PR_SEEK_SET:
            moveMethod = FILE_BEGIN;
            break;
        case PR_SEEK_CUR:
            moveMethod = FILE_CURRENT;
            break;
        case PR_SEEK_END:
            moveMethod = FILE_END;
            break;
        default:
            PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
            return -1;
    }

    rv = SetFilePointer((HANDLE)fd->secret->md.osfd, offset, NULL, moveMethod);

    /*
     * If the lpDistanceToMoveHigh argument (third argument) is
     * NULL, SetFilePointer returns 0xffffffff on failure.
     */
    if (-1 == rv) {
        _PR_MD_MAP_LSEEK_ERROR(GetLastError());
    }
    return rv;
}
PROffset64 _PR_MD_LSEEK64 ( PRFileDesc fd,
PROffset64  offset,
PRSeekWhence  whence 
)

Definition at line 381 of file w95io.c.

{
    DWORD moveMethod;
    LARGE_INTEGER li;
    DWORD err;

    switch (whence) {
        case PR_SEEK_SET:
            moveMethod = FILE_BEGIN;
            break;
        case PR_SEEK_CUR:
            moveMethod = FILE_CURRENT;
            break;
        case PR_SEEK_END:
            moveMethod = FILE_END;
            break;
        default:
            PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
            return -1;
    }

    li.QuadPart = offset;
    li.LowPart = SetFilePointer((HANDLE)fd->secret->md.osfd,
            li.LowPart, &li.HighPart, moveMethod);

    if (0xffffffff == li.LowPart && (err = GetLastError()) != NO_ERROR) {
        _PR_MD_MAP_LSEEK_ERROR(err);
        li.QuadPart = -1;
    }
    return li.QuadPart;
}
PRInt32 _PR_MD_MAKE_DIR ( const char *  name,
PRIntn  mode 
)

Definition at line 1023 of file w95io.c.

{
    BOOL rv;
    SECURITY_ATTRIBUTES sa;
    LPSECURITY_ATTRIBUTES lpSA = NULL;
    PSECURITY_DESCRIPTOR pSD = NULL;
    PACL pACL = NULL;

    if (_PR_NT_MakeSecurityDescriptorACL(mode, dirAccessTable,
            &pSD, &pACL) == PR_SUCCESS) {
        sa.nLength = sizeof(sa);
        sa.lpSecurityDescriptor = pSD;
        sa.bInheritHandle = FALSE;
        lpSA = &sa;
    }
    rv = CreateDirectory(name, lpSA);
    if (lpSA != NULL) {
        _PR_NT_FreeSecurityDescriptorACL(pSD, pACL);
    }
    if (rv) {
        return 0;
    } else {
        _PR_MD_MAP_MKDIR_ERROR(GetLastError());
        return -1;
    }
}

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PRInt32 _PR_MD_MKDIR ( const char *  name,
PRIntn  mode 
)

Definition at line 1011 of file w95io.c.

{
    /* XXXMB - how to translate the "mode"??? */
    if (CreateDirectory(name, NULL)) {
        return 0;
    } else {
              _PR_MD_MAP_MKDIR_ERROR(GetLastError());
        return -1;
    }
}
PRInt32 _PR_MD_OPEN ( const char *  name,
PRIntn  osflags,
int  mode 
)

Definition at line 194 of file w95io.c.

{
    HANDLE file;
    PRInt32 access = 0;
    PRInt32 flags = 0;
    PRInt32 flag6 = 0;
    
    if (osflags & PR_SYNC) flag6 = FILE_FLAG_WRITE_THROUGH;
 
    if (osflags & PR_RDONLY || osflags & PR_RDWR)
        access |= GENERIC_READ;
    if (osflags & PR_WRONLY || osflags & PR_RDWR)
        access |= GENERIC_WRITE;

    if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL )
        flags = CREATE_NEW;
    else if (osflags & PR_CREATE_FILE) {
        if (osflags & PR_TRUNCATE)
            flags = CREATE_ALWAYS;
        else
            flags = OPEN_ALWAYS;
    } else {
        if (osflags & PR_TRUNCATE)
            flags = TRUNCATE_EXISTING;
        else
            flags = OPEN_EXISTING;
    }

    file = CreateFile(name,
                      access,
                      FILE_SHARE_READ|FILE_SHARE_WRITE,
                      NULL,
                      flags,
                      flag6,
                      NULL);
    if (file == INVALID_HANDLE_VALUE) {
              _PR_MD_MAP_OPEN_ERROR(GetLastError());
        return -1; 
       }

    return (PRInt32)file;
}
PRStatus _PR_MD_OPEN_DIR ( _MDDir d,
const char *  name 
)

Definition at line 503 of file w95io.c.

{
    char filename[ MAX_PATH ];
    int len;

    len = strlen(name);
    /* Need 5 bytes for \*.* and the trailing null byte. */
    if (len + 5 > MAX_PATH) {
        PR_SetError(PR_NAME_TOO_LONG_ERROR, 0);
        return PR_FAILURE;
    }
    strcpy(filename, name);

    /*
     * If 'name' ends in a slash or backslash, do not append
     * another backslash.
     */
    if (IsPrevCharSlash(filename, filename + len)) {
        len--;
    }
    strcpy(&filename[len], "\\*.*");
    FlipSlashes( filename, strlen(filename) );

    d->d_hdl = FindFirstFile( filename, &(d->d_entry) );
    if ( d->d_hdl == INVALID_HANDLE_VALUE ) {
              _PR_MD_MAP_OPENDIR_ERROR(GetLastError());
        return PR_FAILURE;
    }
    d->firstEntry = PR_TRUE;
    d->magic = _MD_MAGIC_DIR;
    return PR_SUCCESS;
}

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PRInt32 _PR_MD_OPEN_FILE ( const char *  name,
PRIntn  osflags,
int  mode 
)

Definition at line 238 of file w95io.c.

{
    HANDLE file;
    PRInt32 access = 0;
    PRInt32 flags = 0;
    PRInt32 flag6 = 0;
    SECURITY_ATTRIBUTES sa;
    LPSECURITY_ATTRIBUTES lpSA = NULL;
    PSECURITY_DESCRIPTOR pSD = NULL;
    PACL pACL = NULL;

    if (osflags & PR_CREATE_FILE) {
        if (_PR_NT_MakeSecurityDescriptorACL(mode, fileAccessTable,
                &pSD, &pACL) == PR_SUCCESS) {
            sa.nLength = sizeof(sa);
            sa.lpSecurityDescriptor = pSD;
            sa.bInheritHandle = FALSE;
            lpSA = &sa;
        }
    }
    
    if (osflags & PR_SYNC) flag6 = FILE_FLAG_WRITE_THROUGH;
 
    if (osflags & PR_RDONLY || osflags & PR_RDWR)
        access |= GENERIC_READ;
    if (osflags & PR_WRONLY || osflags & PR_RDWR)
        access |= GENERIC_WRITE;

    if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL )
        flags = CREATE_NEW;
    else if (osflags & PR_CREATE_FILE) {
        if (osflags & PR_TRUNCATE)
            flags = CREATE_ALWAYS;
        else
            flags = OPEN_ALWAYS;
    } else {
        if (osflags & PR_TRUNCATE)
            flags = TRUNCATE_EXISTING;
        else
            flags = OPEN_EXISTING;
    }

    file = CreateFile(name,
                      access,
                      FILE_SHARE_READ|FILE_SHARE_WRITE,
                      lpSA,
                      flags,
                      flag6,
                      NULL);
    if (lpSA != NULL) {
        _PR_NT_FreeSecurityDescriptorACL(pSD, pACL);
    }
    if (file == INVALID_HANDLE_VALUE) {
              _PR_MD_MAP_OPEN_ERROR(GetLastError());
        return -1; 
       }

    return (PRInt32)file;
}

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Definition at line 1109 of file w95io.c.

{
    if (NULL == fd)
              PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
       else
              PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
    return -1;
}

Definition at line 961 of file w95io.c.

PRInt32 _PR_MD_READ ( PRFileDesc fd,
void buf,
PRInt32  len 
)

Definition at line 299 of file w95io.c.

{
    PRUint32 bytes;
    int rv, err;

    rv = ReadFile((HANDLE)fd->secret->md.osfd,
            (LPVOID)buf,
            len,
            &bytes,
            NULL);
    
    if (rv == 0) 
    {
        err = GetLastError();
        /* ERROR_HANDLE_EOF can only be returned by async io */
        PR_ASSERT(err != ERROR_HANDLE_EOF);
        if (err == ERROR_BROKEN_PIPE)
            return 0;
              else {
                     _PR_MD_MAP_READ_ERROR(err);
        return -1;
    }
    }
    return bytes;
}
char* _PR_MD_READ_DIR ( _MDDir d,
PRIntn  flags 
)

Definition at line 537 of file w95io.c.

{
    PRInt32 err;
    BOOL rv;
    char *fileName;

    if ( d ) {
        while (1) {
            if (d->firstEntry) {
                d->firstEntry = PR_FALSE;
                rv = 1;
            } else {
                rv = FindNextFile(d->d_hdl, &(d->d_entry));
            }
            if (rv == 0) {
                break;
            }
            fileName = GetFileFromDIR(d);
            if ( (flags & PR_SKIP_DOT) &&
                 (fileName[0] == '.') && (fileName[1] == '\0'))
                 continue;
            if ( (flags & PR_SKIP_DOT_DOT) &&
                 (fileName[0] == '.') && (fileName[1] == '.') &&
                 (fileName[2] == '\0'))
                 continue;
            if ( (flags & PR_SKIP_HIDDEN) && FileIsHidden(d))
                 continue;
            return fileName;
        }
        err = GetLastError();
        PR_ASSERT(NO_ERROR != err);
                     _PR_MD_MAP_READDIR_ERROR(err);
        return NULL;
              }
    PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
    return NULL;
}
PRInt32 _PR_MD_RENAME ( const char *  from,
const char *  to 
)

Definition at line 976 of file w95io.c.

{
    /* Does this work with dot-relative pathnames? */
    if (MoveFile(from, to)) {
        return 0;
    } else {
              _PR_MD_MAP_RENAME_ERROR(GetLastError());
        return -1;
    }
}
PRInt32 _PR_MD_RMDIR ( const char *  name)

Definition at line 1051 of file w95io.c.

{
    if (RemoveDirectory(name)) {
        return 0;
    } else {
              _PR_MD_MAP_RMDIR_ERROR(GetLastError());
        return -1;
    }
}
PRStatus _PR_MD_SET_FD_INHERITABLE ( PRFileDesc fd,
PRBool  inheritable 
)

Definition at line 931 of file w95io.c.

{
    BOOL rv;

    /*
     * The SetHandleInformation function fails with the
     * ERROR_CALL_NOT_IMPLEMENTED error on Win95.
     */
    rv = SetHandleInformation(
            (HANDLE)fd->secret->md.osfd,
            HANDLE_FLAG_INHERIT,
            inheritable ? HANDLE_FLAG_INHERIT : 0);
    if (0 == rv) {
        _PR_MD_MAP_DEFAULT_ERROR(GetLastError());
        return PR_FAILURE;
    }
    return PR_SUCCESS;
} 
PRInt32 _PR_MD_STAT ( const char *  fn,
struct stat info 
)

Definition at line 638 of file w95io.c.

{
    PRInt32 rv;

    rv = _stat(fn, (struct _stat *)info);
    if (-1 == rv) {
        /*
         * Check for MSVC runtime library _stat() bug.
         * (It's really a bug in FindFirstFile().)
         * If a pathname ends in a backslash or slash,
         * e.g., c:\temp\ or c:/temp/, _stat() will fail.
         * Note: a pathname ending in a slash (e.g., c:/temp/)
         * can be handled by _stat() on NT but not on Win95.
         *
         * We remove the backslash or slash at the end and
         * try again.
         */

        int len = strlen(fn);
        if (len > 0 && len <= _MAX_PATH
                && IsPrevCharSlash(fn, fn + len)) {
            char newfn[_MAX_PATH + 1];

            strcpy(newfn, fn);
            newfn[len - 1] = '\0';
            rv = _stat(newfn, (struct _stat *)info);
        }
    }

    if (-1 == rv) {
        _PR_MD_MAP_STAT_ERROR(errno);
    }
    return rv;
}

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Definition at line 1081 of file w95io.c.

{
    PR_SetError( PR_NOT_IMPLEMENTED_ERROR, 0 );
    return PR_FAILURE;
} /* end _PR_MD_TLOCKFILE() */

Definition at line 1089 of file w95io.c.

{
       PRInt32   rv;
    
    rv = UnlockFile( (HANDLE) f,
              0l, 0l,
            0x0l, 0xffffffffl ); 
            
    if ( rv )
    {
       return PR_SUCCESS;
    }
    else
    {
              _PR_MD_MAP_DEFAULT_ERROR(GetLastError());
              return PR_FAILURE;
    }
} /* end _PR_MD_UNLOCKFILE() */
PRStatus _PR_MD_WAIT ( PRThread thread,
PRIntervalTime  ticks 
)

Definition at line 131 of file w95io.c.

{
    DWORD rv;

    PRUint32 msecs = (ticks == PR_INTERVAL_NO_TIMEOUT) ?
        INFINITE : PR_IntervalToMilliseconds(ticks);
    rv = WaitForSingleObject(thread->md.blocked_sema, msecs);
    switch(rv) 
    {
        case WAIT_OBJECT_0:
            return PR_SUCCESS;
            break;
        case WAIT_TIMEOUT:
            _PR_THREAD_LOCK(thread);
            if (thread->state == _PR_IO_WAIT) {
                       ;
            } else {
                if (thread->wait.cvar != NULL) {
                    thread->wait.cvar = NULL;
                    _PR_THREAD_UNLOCK(thread);
                } else {
                    /* The CVAR was notified just as the timeout
                     * occurred.  This led to us being notified twice.
                     * call WaitForSingleObject() to clear the semaphore.
                     */
                    _PR_THREAD_UNLOCK(thread);
                    rv = WaitForSingleObject(thread->md.blocked_sema, 0);
                    PR_ASSERT(rv == WAIT_OBJECT_0);
                }
            }
            return PR_SUCCESS;
            break;
        default:
            return PR_FAILURE;
            break;
    }
}

Definition at line 169 of file w95io.c.

{
    if ( _PR_IS_NATIVE_THREAD(thread) ) 
    {
        if (ReleaseSemaphore(thread->md.blocked_sema, 1, NULL) == FALSE)
            return PR_FAILURE;
        else
                     return PR_SUCCESS;
       }
}
PRInt32 _PR_MD_WRITE ( PRFileDesc fd,
const void buf,
PRInt32  len 
)

Definition at line 326 of file w95io.c.

{
    PRInt32 f = fd->secret->md.osfd;
    PRInt32 bytes;
    int rv;
    PRThread *me = _PR_MD_CURRENT_THREAD();
    
    rv = WriteFile((HANDLE)f,
            buf,
            len,
            &bytes,
            NULL );
            
    if (rv == 0) 
    {
              _PR_MD_MAP_WRITE_ERROR(GetLastError());
        return -1;
    }
    return bytes;
} /* --- end _PR_MD_WRITE() --- */
void FlipSlashes ( char *  cp,
int  len 
)

Definition at line 467 of file w95io.c.

{
    while (--len >= 0) {
        if (cp[0] == '/') {
            cp[0] = PR_DIRECTORY_SEPARATOR;
        }
        cp = _mbsinc(cp);
    }
} /* end FlipSlashes() */
static void InitUnicodeSupport ( void  ) [static]

Definition at line 1135 of file w95io.c.

{
    /*
     * The W functions exist on Win9x as stubs that fail with the
     * ERROR_CALL_NOT_IMPLEMENTED error.  We plan to emulate the
     * MSLU W functions on Win9x in the future.
     */

    /* Find out if we are running on a Unicode enabled version of Windows */
    OSVERSIONINFOA osvi = {0};

    osvi.dwOSVersionInfoSize = sizeof(osvi);
    if (GetVersionExA(&osvi)) {
        _pr_useUnicode = (osvi.dwPlatformId >= VER_PLATFORM_WIN32_NT);
    } else {
        _pr_useUnicode = PR_FALSE;
    }
#ifdef DEBUG
    /*
     * In debug builds, allow explicit use of ANSI methods to simulate
     * a Win9x environment for testing purposes.
     */
    if (getenv("WINAPI_USE_ANSI"))
        _pr_useUnicode = PR_FALSE;
#endif
}

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static PRBool IsPrevCharSlash ( const char *  str,
const char *  current 
) [static]

Definition at line 676 of file w95io.c.

{
    const char *prev;

    if (str >= current)
        return PR_FALSE;
    prev = _mbsdec(str, current);
    return (prev == current - 1) && _PR_IS_SLASH(*prev);
}

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static PRBool IsRootDirectory ( char *  fn,
size_t  buflen 
) [static]

Definition at line 705 of file w95io.c.

{
    char *p;
    PRBool slashAdded = PR_FALSE;
    PRBool rv = PR_FALSE;

    if (_PR_IS_SLASH(fn[0]) && fn[1] == '\0') {
        return PR_TRUE;
    }

    if (isalpha(fn[0]) && fn[1] == ':' && _PR_IS_SLASH(fn[2])
            && fn[3] == '\0') {
        rv = GetDriveType(fn) > 1 ? PR_TRUE : PR_FALSE;
        return rv;
    }

    /* The UNC root directory */

    if (_PR_IS_SLASH(fn[0]) && _PR_IS_SLASH(fn[1])) {
        /* The 'server' part should have at least one character. */
        p = &fn[2];
        if (*p == '\0' || _PR_IS_SLASH(*p)) {
            return PR_FALSE;
        }

        /* look for the next slash */
        do {
            p = _mbsinc(p);
        } while (*p != '\0' && !_PR_IS_SLASH(*p));
        if (*p == '\0') {
            return PR_FALSE;
        }

        /* The 'share' part should have at least one character. */
        p++;
        if (*p == '\0' || _PR_IS_SLASH(*p)) {
            return PR_FALSE;
        }

        /* look for the final slash */
        do {
            p = _mbsinc(p);
        } while (*p != '\0' && !_PR_IS_SLASH(*p));
        if (_PR_IS_SLASH(*p) && p[1] != '\0') {
            return PR_FALSE;
        }
        if (*p == '\0') {
            /*
             * GetDriveType() doesn't work correctly if the
             * path is of the form \\server\share, so we add
             * a final slash temporarily.
             */
            if ((p + 1) < (fn + buflen)) {
                *p++ = '\\';
                *p = '\0';
                slashAdded = PR_TRUE;
            } else {
                return PR_FALSE; /* name too long */
            }
        }
        rv = GetDriveType(fn) > 1 ? PR_TRUE : PR_FALSE;
        /* restore the 'fn' buffer */
        if (slashAdded) {
            *--p = '\0';
        }
    }
    return rv;
}

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Variable Documentation

const PRTime _pr_filetime_offset = 116444736000000000i64 [static]

Definition at line 81 of file w95io.c.

Definition at line 1133 of file w95io.c.

DWORD dirAccessTable[] [static]
Initial value:
 {
    FILE_GENERIC_READ,
    FILE_GENERIC_WRITE|FILE_DELETE_CHILD,
    FILE_GENERIC_EXECUTE
}

Definition at line 67 of file w95io.c.

DWORD fileAccessTable[] [static]
Initial value:
 {
    FILE_GENERIC_READ,
    FILE_GENERIC_WRITE,
    FILE_GENERIC_EXECUTE
}

Definition at line 58 of file w95io.c.