| -rw-r--r-- | qmake/tools/qfile_unix.cpp | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/qmake/tools/qfile_unix.cpp b/qmake/tools/qfile_unix.cpp index 2d5a856..460bf06 100644 --- a/qmake/tools/qfile_unix.cpp +++ b/qmake/tools/qfile_unix.cpp @@ -414,53 +414,56 @@ bool QFile::open( int m, int f ) if ( length == 0 && isReadable() ) { // try if you can read from it (if you can, it's a sequential // device; e.g. a file in the /proc filesystem) int c = getch(); if ( c != -1 ) { ungetch(c); setType( IO_Sequential ); length = INT_MAX; ioIndex = 0; } resetStatus(); } } return TRUE; } /*! Returns the file size. \sa at() */ QIODevice::Offset QFile::size() const { struct stat st; + int ret = 0; if ( isOpen() ) { - ::fstat( fh ? fileno(fh) : fd, &st ); + ret = ::fstat( fh ? fileno(fh) : fd, &st ); } else { - ::stat( QFile::encodeName(fn), &st ); + ret = ::stat( QFile::encodeName(fn), &st ); } + if ( ret == -1 ) + return 0; #if defined(QT_LARGEFILE_SUPPORT) && !defined(QT_ABI_64BITOFFSET) return (uint)st.st_size > UINT_MAX ? UINT_MAX : (QIODevice::Offset)st.st_size; #else return st.st_size; #endif } /*! \overload Sets the file index to \a pos. Returns TRUE if successful; otherwise returns FALSE. Example: \code QFile f( "data.bin" ); f.open( IO_ReadOnly ); // index set to 0 f.at( 100 ); // set index to 100 f.at( f.at()+50 ); // set index to 150 f.at( f.size()-80 ); // set index to 80 before EOF f.close(); \endcode @@ -517,49 +520,49 @@ bool QFile::at( Offset pos ) readBlock() solved this problem. */ Q_LONG QFile::readBlock( char *p, Q_ULONG len ) { #if defined(QT_CHECK_NULL) if ( !p ) qWarning( "QFile::readBlock: Null pointer error" ); #endif #if defined(QT_CHECK_STATE) if ( !isOpen() ) { qWarning( "QFile::readBlock: File not open" ); return -1; } if ( !isReadable() ) { qWarning( "QFile::readBlock: Read operation not permitted" ); return -1; } #endif Q_ULONG nread = 0; // number of bytes read if ( !ungetchBuffer.isEmpty() ) { // need to add these to the returned string. uint l = ungetchBuffer.length(); while( nread < l ) { - *p = ungetchBuffer[ l - nread - 1 ]; + *p = ungetchBuffer.at( l - nread - 1 ); p++; nread++; } ungetchBuffer.truncate( l - nread ); } if ( nread < len ) { if ( isRaw() ) { // raw file nread += ::read( fd, p, len-nread ); if ( len && nread <= 0 ) { nread = 0; setStatus(IO_ReadError); } } else { // buffered file nread += fread( p, 1, len-nread, fh ); if ( (uint)nread != len ) { if ( ferror( fh ) || nread==0 ) setStatus(IO_ReadError); } } } if ( !isSequentialAccess() ) ioIndex += nread; return nread; @@ -608,49 +611,51 @@ Q_LONG QFile::writeBlock( const char *p, Q_ULONG len ) setStatus( IO_WriteError ); if ( !isSequentialAccess() ) { if ( isRaw() ) // recalc file position ioIndex = (Offset)::lseek( fd, 0, SEEK_CUR ); else #if defined(QT_LARGEFILE_SUPPORT) ioIndex = (Offset)::fseeko( fh, 0, SEEK_CUR ); #else ioIndex = (Offset)::fseek( fh, 0, SEEK_CUR ); #endif } } else { if ( !isSequentialAccess() ) ioIndex += nwritten; } if ( ioIndex > length ) // update file length length = ioIndex; return nwritten; } /*! Returns the file handle of the file. This is a small positive integer, suitable for use with C library - functions such as fdopen() and fcntl(), as well as with QSocketNotifier. + functions such as fdopen() and fcntl(). On systems that use file + descriptors for sockets (ie. Unix systems, but not Windows) the handle + can be used with QSocketNotifier as well. If the file is not open or there is an error, handle() returns -1. \sa QSocketNotifier */ int QFile::handle() const { if ( !isOpen() ) return -1; else if ( fh ) return fileno( fh ); else return fd; } /*! Closes an open file. The file is not closed if it was opened with an existing file handle. If the existing file handle is a \c FILE*, the file is flushed. If the existing file handle is an \c int file descriptor, nothing is done to the file. |