#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1989, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n");
#endif
#ifndef lint
#if 0
static char sccsid[] = "@(#)ls.c 8.7 (Berkeley) 8/5/94";
#else
__RCSID("$NetBSD: ls.c,v 1.31 1998/08/19 01:44:19 thorpej Exp $");
#endif
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/param.h>
#include <dirent.h>
#include <err.h>
#include <errno.h>
#include <fts.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pwd.h>
#include <grp.h>
#include "ls.h"
#include "extern.h"
int main __P((int, char *[]));
static void display __P((FTSENT *, FTSENT *));
static int mastercmp __P((const FTSENT **, const FTSENT **));
static void traverse __P((int, char **, int));
static void (*printfcn) __P((DISPLAY *));
static int (*sortfcn) __P((const FTSENT *, const FTSENT *));
#define BY_NAME 0
#define BY_SIZE 1
#define BY_TIME 2
long blocksize;
int termwidth = 80;
int sortkey = BY_NAME;
int f_accesstime;
int f_column;
int f_columnacross;
int f_flags;
int f_inode;
int f_listdir;
int f_listdot;
int f_longform;
int f_nonprint;
int f_nosort;
int f_numericonly;
int f_recursive;
int f_reversesort;
int f_sectime;
int f_singlecol;
int f_size;
int f_statustime;
int f_type;
int f_whiteout;
int
main(argc, argv)
int argc;
char *argv[];
{
static char dot[] = ".", *dotav[] = { dot, NULL };
struct winsize win;
int ch, fts_options, notused;
int kflag = 0;
const char *p;
if (isatty(STDOUT_FILENO)) {
if ((p = getenv("COLUMNS")) != NULL)
termwidth = atoi(p);
else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &win) == 0 &&
win.ws_col > 0)
termwidth = win.ws_col;
f_column = f_nonprint = 1;
} else
f_singlecol = 1;
if (!getuid())
f_listdot = 1;
fts_options = FTS_PHYSICAL;
while ((ch = getopt(argc, argv, "1ACFLRSTWacdfgiklnoqrstuxv")) != -1) {
switch (ch) {
case '1':
f_singlecol = 1;
f_column = f_columnacross = f_longform = 0;
break;
case 'C':
f_column = 1;
f_columnacross = f_longform = f_singlecol = 0;
break;
case 'l':
f_longform = 1;
f_column = f_columnacross = f_singlecol = 0;
break;
case 'x':
f_columnacross = 1;
f_column = f_longform = f_singlecol = 0;
break;
case 'c':
f_statustime = 1;
f_accesstime = 0;
break;
case 'u':
f_accesstime = 1;
f_statustime = 0;
break;
case 'F':
f_type = 1;
break;
case 'L':
fts_options &= ~FTS_PHYSICAL;
fts_options |= FTS_LOGICAL;
break;
case 'R':
f_recursive = 1;
break;
case 'a':
fts_options |= FTS_SEEDOT;
case 'A':
f_listdot = 1;
break;
case 'd':
f_listdir = 1;
f_recursive = 0;
break;
case 'f':
f_nosort = 1;
break;
case 'g':
break;
case 'i':
f_inode = 1;
break;
case 'k':
blocksize = 1024;
kflag = 1;
break;
case 'n':
f_numericonly = 1;
break;
case 'o':
f_flags = 1;
break;
case 'q':
f_nonprint = 1;
break;
case 'r':
f_reversesort = 1;
break;
case 'S':
sortkey = BY_SIZE;
break;
case 's':
f_size = 1;
break;
case 'T':
f_sectime = 1;
break;
case 't':
sortkey = BY_TIME;
break;
case 'W':
f_whiteout = 1;
break;
case 'v':
f_nonprint = 0;
break;
default:
case '?':
usage();
}
}
argc -= optind;
argv += optind;
if (!f_inode && !f_longform && !f_size && !f_type &&
sortkey == BY_NAME)
fts_options |= FTS_NOSTAT;
if (!f_longform && !f_listdir && !f_type)
fts_options |= FTS_COMFOLLOW;
#ifdef FTS_WHITEOUT
if (f_whiteout)
fts_options |= FTS_WHITEOUT;
#endif
if (f_longform || f_size) {
if (!kflag)
(void)getbsize(¬used, &blocksize);
blocksize /= 512;
}
if (f_reversesort) {
switch (sortkey) {
case BY_NAME:
sortfcn = revnamecmp;
break;
case BY_SIZE:
sortfcn = revsizecmp;
break;
case BY_TIME:
if (f_accesstime)
sortfcn = revacccmp;
else if (f_statustime)
sortfcn = revstatcmp;
else
sortfcn = revmodcmp;
break;
}
} else {
switch (sortkey) {
case BY_NAME:
sortfcn = namecmp;
break;
case BY_SIZE:
sortfcn = sizecmp;
break;
case BY_TIME:
if (f_accesstime)
sortfcn = acccmp;
else if (f_statustime)
sortfcn = statcmp;
else
sortfcn = modcmp;
break;
}
}
if (f_singlecol)
printfcn = printscol;
else if (f_columnacross)
printfcn = printacol;
else if (f_longform)
printfcn = printlong;
else
printfcn = printcol;
if (argc)
traverse(argc, argv, fts_options);
else
traverse(1, dotav, fts_options);
exit(0);
}
static int output;
static void
traverse(argc, argv, options)
int argc, options;
char *argv[];
{
FTS *ftsp;
FTSENT *p, *chp;
int ch_options;
char pbuf[MAXPATHLEN + 1], *path;
if ((ftsp =
fts_open(argv, options, f_nosort ? NULL : mastercmp)) == NULL)
err(1, "%s", "");
display(NULL, fts_children(ftsp, 0));
if (f_listdir)
return;
ch_options = !f_recursive && options & FTS_NOSTAT ? FTS_NAMEONLY : 0;
while ((p = fts_read(ftsp)) != NULL)
switch (p->fts_info) {
case FTS_DC:
warnx("%s: directory causes a cycle", p->fts_name);
break;
case FTS_DNR:
case FTS_ERR:
warnx("%s: %s", p->fts_name, strerror(p->fts_errno));
break;
case FTS_D:
if (p->fts_level != FTS_ROOTLEVEL &&
p->fts_name[0] == '.' && !f_listdot)
break;
if (f_nonprint) {
prcopy(p->fts_path, pbuf, p->fts_pathlen+1);
path = pbuf;
} else
path = p->fts_path;
if (output)
(void)printf("\n%s:\n", path);
else if (argc > 1) {
(void)printf("%s:\n", path);
output = 1;
}
chp = fts_children(ftsp, ch_options);
display(p, chp);
if (!f_recursive && chp != NULL)
(void)fts_set(ftsp, p, FTS_SKIP);
break;
}
if (errno)
err(1, "fts_read");
}
static void
display(p, list)
FTSENT *p, *list;
{
struct stat *sp;
DISPLAY d;
FTSENT *cur;
NAMES *np;
u_int64_t btotal, maxblock, maxsize;
int maxinode, maxnlink, maxmajor, maxminor;
int bcfile, entries, flen, glen, ulen, maxflags, maxgroup, maxlen;
int maxuser, needstats;
const char *user, *group;
char ubuf[21]="", gbuf[21]="", buf[21];
char nuser[12], ngroup[12];
char *flags = NULL;
#ifdef __GNUC__
(void) &maxsize;
#endif
if (list == NULL)
return;
needstats = f_inode || f_longform || f_size;
flen = 0;
maxinode = maxnlink = 0;
bcfile = 0;
maxuser = maxgroup = maxflags = maxlen = 0;
btotal = maxblock = maxsize = 0;
maxmajor = maxminor = 0;
for (cur = list, entries = 0; cur; cur = cur->fts_link) {
if (cur->fts_info == FTS_ERR || cur->fts_info == FTS_NS) {
warnx("%s: %s",
cur->fts_name, strerror(cur->fts_errno));
cur->fts_number = NO_PRINT;
continue;
}
if (p == NULL) {
if (cur->fts_info == FTS_D && !f_listdir) {
cur->fts_number = NO_PRINT;
continue;
}
} else {
if (cur->fts_name[0] == '.' && !f_listdot) {
cur->fts_number = NO_PRINT;
continue;
}
}
if (cur->fts_namelen > maxlen)
maxlen = cur->fts_namelen;
if (needstats) {
sp = cur->fts_statp;
if (sp->st_blocks > maxblock)
maxblock = sp->st_blocks;
if (sp->st_ino > maxinode)
maxinode = sp->st_ino;
if (sp->st_nlink > maxnlink)
maxnlink = sp->st_nlink;
if (sp->st_size > maxsize)
maxsize = sp->st_size;
if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode)) {
bcfile = 1;
if (major(sp->st_rdev) > maxmajor)
maxmajor = major(sp->st_rdev);
if (minor(sp->st_rdev) > maxminor)
maxminor = minor(sp->st_rdev);
}
btotal += sp->st_blocks;
if (f_longform) {
if (f_numericonly) {
(void)snprintf(nuser, sizeof(nuser),
"%u", sp->st_uid);
(void)snprintf(ngroup, sizeof(ngroup),
"%u", sp->st_gid);
user = nuser;
group = ngroup;
} else {
if ((user = user_from_uid(sp->st_uid, 0)) == NULL) {
(void)snprintf(ubuf, sizeof(ubuf), "%d", (int)sp->st_uid);
user = ubuf;
}
if ((group = group_from_gid(sp->st_gid, 0)) == NULL) {
(void)snprintf(gbuf, sizeof(gbuf), "%d", (int)sp->st_gid);
group = gbuf;
}
}
if ((ulen = strlen(user)) > maxuser)
maxuser = ulen;
if ((glen = strlen(group)) > maxgroup)
maxgroup = glen;
if (f_flags) {
flags =
flags_to_string(sp->st_flags, "-");
if ((flen = strlen(flags)) > maxflags)
maxflags = flen;
} else
flen = 0;
if ((np = malloc(sizeof(NAMES) +
ulen + glen + flen + 3)) == NULL)
err(1, "%s", "");
np->user = &np->data[0];
(void)strcpy(np->user, user);
np->group = &np->data[ulen + 1];
(void)strcpy(np->group, group);
if (f_flags) {
np->flags = &np->data[ulen + glen + 2];
(void)strcpy(np->flags, flags);
}
cur->fts_pointer = np;
}
}
++entries;
}
if (!entries)
return;
d.list = list;
d.entries = entries;
d.maxlen = maxlen;
if (needstats) {
d.btotal = btotal;
(void)snprintf(buf, sizeof(buf), "%qu", (long long)maxblock);
d.s_block = strlen(buf);
d.s_flags = maxflags;
d.s_group = maxgroup;
(void)snprintf(buf, sizeof(buf), "%u", maxinode);
d.s_inode = strlen(buf);
(void)snprintf(buf, sizeof(buf), "%u", maxnlink);
d.s_nlink = strlen(buf);
(void)snprintf(buf, sizeof(buf), "%qu", (long long)maxsize);
d.s_size = strlen(buf);
d.s_user = maxuser;
if (bcfile) {
(void)snprintf(buf, sizeof(buf), "%u", maxmajor);
d.s_major = strlen(buf);
(void)snprintf(buf, sizeof(buf), "%u", maxminor);
d.s_minor = strlen(buf);
if (d.s_major + d.s_minor + 2 > d.s_size)
d.s_size = d.s_major + d.s_minor + 2;
else if (d.s_size - d.s_minor - 2 > d.s_major)
d.s_major = d.s_size - d.s_minor - 2;
} else {
d.s_major = 0;
d.s_minor = 0;
}
}
printfcn(&d);
output = 1;
if (f_longform)
for (cur = list; cur; cur = cur->fts_link)
free(cur->fts_pointer);
}
static int
mastercmp(a, b)
const FTSENT **a, **b;
{
int a_info, b_info;
a_info = (*a)->fts_info;
if (a_info == FTS_ERR)
return (0);
b_info = (*b)->fts_info;
if (b_info == FTS_ERR)
return (0);
if (a_info == FTS_NS || b_info == FTS_NS) {
if (b_info != FTS_NS)
return (1);
else if (a_info != FTS_NS)
return (-1);
else
return (namecmp(*a, *b));
}
if (a_info != b_info && !f_listdir &&
(*a)->fts_level == FTS_ROOTLEVEL) {
if (a_info == FTS_D)
return (1);
else if (b_info == FTS_D)
return (-1);
}
return (sortfcn(*a, *b));
}