[unix-history] / .ref-5cb41021d721f4e0ac572d592613f963e495d1ff / .ref-BSD-3 / usr / src / new / libI77uc / rewind.c

/*
 * rewind.c  -  f77 file rewind
 */

#include "fio.h"

f_rew(a) alist *a;
{	int n;
	unit *b;
	lfname = NULL;
	elist = NO;
	external = YES;			/* for err */
	lunit = a->aunit;
	if(not_legal(lunit)) err(a->aerr,101,"rewind")
	b = &units[lunit];
	if(!b->ufd && (n=fk_open(READ,SEQ,FMT,lunit)) ) err(a->aerr,n,"rewind")
	lfname = b->ufnm;
	if(!b->useek) err(a->aerr,106,"rewind")
	b->uend = NO;
	if(b->uwrt)
		if(n=t_runc(b,a->aerr)) return(n);
	rewind(b->ufd);
	return(OK);
}
Commit	Line	Data
efafa560 DW	1	/*
	2	* rewind.c - f77 file rewind
	3	*/
	4
	5	#include "fio.h"
	6
	7	f_rew(a) alist *a;
	8	{ int n;
	9	unit *b;
	10	lfname = NULL;
	11	elist = NO;
	12	external = YES; /* for err */
	13	lunit = a->aunit;
	14	if(not_legal(lunit)) err(a->aerr,101,"rewind")
	15	b = &units[lunit];
	16	if(!b->ufd && (n=fk_open(READ,SEQ,FMT,lunit)) ) err(a->aerr,n,"rewind")
	17	lfname = b->ufnm;
	18	if(!b->useek) err(a->aerr,106,"rewind")
	19	b->uend = NO;
	20	if(b->uwrt)
	21	if(n=t_runc(b,a->aerr)) return(n);
	22	rewind(b->ufd);
	23	return(OK);
	24	}