/* * $QNXLicenseC: * Copyright 2007, QNX Software Systems. All Rights Reserved. * * You must obtain a written license from and pay applicable license fees to QNX * Software Systems before you may reproduce, modify or distribute this software, * or any work that includes all or part of this software. Free development * licenses are available for evaluation and non-commercial purposes. For more * information visit http://licensing.qnx.com or email licensing@qnx.com. * * This file may contain contributions from others. Please review this entire * file for other proprietary rights or license notices, as well as the QNX * Development Suite License Guide at http://licensing.qnx.com/license-guide/ * for other information. * $ */ #if 0 #include off_t ltrunc( int fd, off_t offset, int whence ) { off_t where; off_t total; off_t current; total = filelength( fd ); if( total == -1 ) { errno = EBADF; return( -1 ); } current = tell( fd ); if( current == -1 ) { errno = EBADF; return( -1 ); } switch( whence ) { case SEEK_SET: where = offset; break; case SEEK_CUR: where = current + offset; break; case SEEK_END: where = total + offset; break; } if( where >= total ) { errno = EINVAL; return( -1 ); } return( chsize( fd, where ) ); } #endif