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    Length: 1418 (0x58a)
    Types: TextFile
    Names: »f_exists_r.c«

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TextFile

#ifndef	lint
#ifndef	DEBUG
static char SCCS_id[] = "@(#)f_exists_r.c 2.1 90/08/02 19:05:05  Copyright(c) 1990 by Rational.";
#else
static char SCCS_id[] = "@(#)f_exists_r.c DEBUG 2.1 90/08/02 19:05:05  Copyright(c) 1990 by Rational.";
#endif
#endif

#define	FILE_EXISTS_R
#include	"talk.h"
#undef	FILE_EXISTS_W

static	jmp_buf	env;
static	check(error)	int error; 
{
	if (error != E_OK) longjmp(env,error);
}

int	file_exists_r_read(fd)	int	fd; 
{
	int	i,error;
	char	*str;
	if (error=setjmp(env))	return	error;
#ifdef	DEBUG
	trace_request("File_Existence");
#endif
	check(rw_read_int(fd,&i));
	check((i==F_OF_REMOTE_FILE)?E_OK:E_INTERNAL_ERROR);
	check(rw_read_str(fd,&str));
#ifdef	DEBUG
	trace_string("in","Remote_File",str);
#endif
	check(file_exists_f_of_remote_file_in(str));
	check(rw_read_int(fd,&i));
	check((i==F_DELIMITOR)?E_OK:E_INTERNAL_ERROR);
	check(rw_read_int(fd,&i));
	check((i==R_FILE_EXISTS)?E_OK:E_INTERNAL_ERROR);
	return	E_OK;
}
int	file_exists_r_write(fd)	int	fd; 
{
	int	i,error;
	b_flush(0);
	if (error=setjmp(env)) {
		return report_unix_error(fd,R_FILE_EXISTS,error);
	}
	check(file_exists_f_file_exists_out(&i));
#ifdef	DEBUG
	trace_bool("out","File_Exists",i);
#endif
	check(rw_write_int(fd,F_EXISTS));
	check(rw_write_bool(fd,i));
	check(file_exists_f_end());
#ifdef	DEBUG
	trace_end();
#endif
	rw_write_int(fd,F_DELIMITOR);
	b_flush(1);
	rw_write_int(fd,R_FILE_EXISTS);
	return	E_OK;
}