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48 lines
856 B
C
48 lines
856 B
C
/**
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* @file
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*
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* @brief Truncate a File to the Specified Length
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* @ingroup libcsupport
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*/
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/*
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <unistd.h>
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#include <errno.h>
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#include <fcntl.h>
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/**
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* This routine is not defined in the POSIX 1003.1b standard but is
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* commonly supported on most UNIX and POSIX systems. It is provided
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* for compatibility.
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*/
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int truncate(
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const char *path,
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off_t length
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)
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{
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int status;
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int fd;
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fd = open( path, O_WRONLY );
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if ( fd == -1 )
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return -1;
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status = ftruncate( fd, length );
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(void) close( fd );
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return status;
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}
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