xfind.c

来自「CC386 is a general-purpose 32-bit C comp」· C语言 代码 · 共 60 行

#include "afx.h"

#if defined(__CCDL__)
	#include "ccdl.cc"
		#define F_OK 0
#else
	#include <io.h>	
	#if defined(__TURBOC__)
		#define F_OK 0
	#endif
#endif


/*
//	search file
*/
char *xfind( char *fname, char *rundir ) {
	static char fpath[ LINE_MAX ];

	assert( fname != NULL );
	assert( rundir != NULL );
	/* where call cl386 */
	make_path( fname, rundir, fpath );
/*#if DEBUG
	printf( "*** 1.FindFile '%s'\n", fpath );
#endif*/
	if ( access( fpath , F_OK ) == 0 )
		return fpath;
/*#if DEBUG
	printf( "*** 2.FindFile in %%PATH%% '%s'\n", fname );
#endif*/
	/* in PATH */
	_searchenv( fname, "PATH", fpath );
/*#if DEBUG
	printf( "*** 3.FindFile found '%s'\n", fpath );
#endif*/
	if ( fpath[0] )
		return fpath;
	strcpy(fpath,fname);;
	return fpath;
}

/*
//	add path & fname
*/
void make_path( char *fname, char *dir, char *buf ) {
	char dird[2];

	assert( fname != NULL );
	assert( dir != NULL );
	assert( buf != NULL );

	strcpy( buf, dir );
	if ( last_char(buf) != DIR_DELIM ) {
		dird[0] = DIR_DELIM;
		dird[1] = 0;
		strcat( buf, dird );
	}
	strcat( buf, fname );
}