unix/byteyears.c:7,10 c byteyears.c:7,8
< #include <stdio.h>
< #include <sys/types.h>
< #include <sys/stat.h>
< #include <ftw.h>
---
> #include <u.h>
> #include <libc.h>
unix/byteyears.c:14 c byteyears.c:12
< time_t now, year;
---
> long now, year;
unix/byteyears.c:18,21 c byteyears.c:16
< consider (name, buf, code)
< 	char *name;
< 	register struct stat *buf;
< 	int code;
---
> consider(char *name, Dir *d)
unix/byteyears.c:24,26 c byteyears.c:19,20
< 	register char *p;
< 	char *ctime();
< 	time_t t;
---
> 	char *p;
> 	long t;
unix/byteyears.c:28 c byteyears.c:22,23
< 	switch (code) {
---
> 	t = aflag? d->atime: d->mtime;
> 	by = (double) d->length * (double) (now - t) / YEAR;
unix/byteyears.c:30,32 c byteyears.c:25,31
< 	case FTW_F:
< 		t = aflag? buf->st_atime: buf->st_mtime;
< 		by = (double) buf->st_size * (double) (now - t) / YEAR;
---
> 	print ("%12.0f %10d", by + 0.5, d->length);
> 	p = ctime (t);
> 	if (t < year)
> 		print(" %-7.7s %-4.4s ", p+4, p+20);
> 	else
> 		print(" %-12.12s ", p+4);
> 	print ("%s\n", name);
unix/byteyears.c:34,41 c byteyears.c:33,34
< 		printf ("%12.0f %10d", by + 0.5, buf->st_size);
< 		p = ctime (&t);
< 		if (t < year)
< 			printf(" %-7.7s %-4.4s ", p+4, p+20);
< 		else
< 			printf(" %-12.12s ", p+4);
< 		printf ("%s\n", name);
< 		break;
---
> 	return 0;
> }
unix/byteyears.c:43,45 c byteyears.c:36,46
< 	case FTW_NS:
< 		perror (name);
< 		break;
---
> int
> check(char *s, int (*by) (char*, Dir*))
> {
> 	Dir *d;
> 	int fd, rc;
> 	int n, i;
> 
> 	d = dirstat (s);
> 	if (d == nil) {
> 		perror (s);
> 		return -1;
unix/byteyears.c:47 a byteyears.c:49,67
> 	if ((d->mode&DMDIR) == 0)
> 		return by (s, d);
> 
> 	if ((fd = open (s, OREAD)) == -1) {
> 		perror (s);
> 		return -1;
> 	}
> 
> 	if ((n = dirreadall (fd, &d)) < 0) {
> 		perror (s);
> 		return -1;
> 	}
> 
> 	for (i = 0; i < n; i++)
> 		if ((rc = by ((d+i)->name, d+i)) < 0)
> 			return rc;		/* in case */
> 
> 	close (fd);
> 
unix/byteyears.c:50,53 c byteyears.c:70,72
< 
< main (argc, argv)
< 	int argc;
< 	char **argv;
---
> 	
> int
> main (int argc, char **argv)
unix/byteyears.c:56,59 c byteyears.c:75
< 	extern char _sobuf[BUFSIZ];
< 	register int c;
< 	extern int optind;
< 	int rc = 0;
---
> 	int rc = 1;
unix/byteyears.c:61 c byteyears.c:77
< 	setbuf (stdout, _sobuf);
---
> 	ARGBEGIN {
unix/byteyears.c:63,65 d byteyears.c:78
< 	while ((c = getopt (argc, argv, "a")) != EOF) {
< 		switch (c) {
< 
unix/byteyears.c:72,73 c byteyears.c:85
< 		}
< 	}
---
> 	} ARGEND
unix/byteyears.c:76,77 c byteyears.c:88,89
< 		fprintf (stderr, "usage: byteyears [-a] [file]...\n");
< 		exit (1);
---
> 		fprint (2, "usage: byteyears [-a] [file]...\n");
> 		exits ("usage");
unix/byteyears.c:83,85 c byteyears.c:95,97
< 	if (argc <= optind) {
< 		if (ftw ("", consider, 8) < 0) {
< 			fprintf (stderr, "cannot access current directory\n");
---
> 	if (!argc) {
> 		if (check (".", consider) < 0) {
> 			fprint (2, "cannot access current directory\n");
unix/byteyears.c:89,91 c byteyears.c:101,103
< 		for (i = optind; i < argc; i++) {
< 			if (ftw (argv[i], consider, 8) < 0) {
< 				fprintf (stderr, "cannot access %s\n", argv[i]);
---
> 		for (i = 0; i < argc; i++) {
> 			if (check (argv[i], consider) < 0) {
> 				fprint (2, "cannot access %s\n", argv[i]);