fdutil.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 77 行

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*
*                            Open Watcom Project
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*    This file contains Original Code and/or Modifications of Original
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//
// FDUTIL    : "FILEDEF" utilities
//

#include "ftnstd.h"
#include "ftnio.h"

#include <string.h>
#include <stdio.h>
#include <stdlib.h>

extern  void                    *RChkAlloc(uint);


void    *LocFile( char *name ) {
//==============================

// Search the environment for the given name.

    return( getenv( name ) );
}


void    *LocUnit( int unit ) {
//============================

// Search FILEDEF chain for file name associated with unit &.
// Return 0 if none found, non-zero otherwise.

    char        numbuff[MAX_INT_SIZE+1];

    ltoa( unit, numbuff, 10 );
    return( LocFile( numbuff ) );
}


void    ExtractInfo( char *handle, ftnfile *fcb ) {
//=================================================

// Set the file name in the fcb.

    fcb->filename = RChkAlloc( strlen( handle ) + sizeof( char ) );
    strcpy( fcb->filename, handle );
}