698 lines
15 KiB
C
698 lines
15 KiB
C
/*
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* Copyright (c) 1989, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Michael Fischbein.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if 0
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#ifndef lint
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static char sccsid[] = "@(#)print.c 8.4 (Berkeley) 4/17/94";
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#endif /* not lint */
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <sys/acl.h>
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#include <err.h>
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#include <errno.h>
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#include <fts.h>
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#include <math.h>
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#include <langinfo.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#ifdef COLORLS
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#include <ctype.h>
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#include <termcap.h>
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#include <signal.h>
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#endif
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#include "ls.h"
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#include "extern.h"
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static int printaname(FTSENT *, u_long, u_long);
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static void printlink(const FTSENT *);
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static void printtime(time_t);
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static int printtype(u_int);
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static void printsize(size_t, off_t);
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#ifdef COLORLS
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static void endcolor(int);
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static int colortype(mode_t);
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#endif
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static void aclmode(char *, FTSENT *, int *);
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#define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT)
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#define KILO_SZ(n) (n)
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#define MEGA_SZ(n) ((n) * (n))
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#define GIGA_SZ(n) ((n) * (n) * (n))
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#define TERA_SZ(n) ((n) * (n) * (n) * (n))
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#define PETA_SZ(n) ((n) * (n) * (n) * (n) * (n))
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#define KILO_2_SZ (KILO_SZ(1024ULL))
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#define MEGA_2_SZ (MEGA_SZ(1024ULL))
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#define GIGA_2_SZ (GIGA_SZ(1024ULL))
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#define TERA_2_SZ (TERA_SZ(1024ULL))
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#define PETA_2_SZ (PETA_SZ(1024ULL))
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static unsigned long long vals_base2[] = {1, KILO_2_SZ, MEGA_2_SZ, GIGA_2_SZ, TERA_2_SZ, PETA_2_SZ};
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typedef enum {
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NONE, KILO, MEGA, GIGA, TERA, PETA, UNIT_MAX
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} unit_t;
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static unit_t unit_adjust(double *);
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static unit_t unitp[] = {NONE, KILO, MEGA, GIGA, TERA, PETA};
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#ifdef COLORLS
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/* Most of these are taken from <sys/stat.h> */
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typedef enum Colors {
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C_DIR, /* directory */
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C_LNK, /* symbolic link */
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C_SOCK, /* socket */
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C_FIFO, /* pipe */
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C_EXEC, /* executable */
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C_BLK, /* block special */
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C_CHR, /* character special */
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C_SUID, /* setuid executable */
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C_SGID, /* setgid executable */
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C_WSDIR, /* directory writeble to others, with sticky
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* bit */
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C_WDIR, /* directory writeble to others, without
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* sticky bit */
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C_NUMCOLORS /* just a place-holder */
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} Colors;
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static const char *defcolors = "exfxcxdxbxegedabagacad";
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/* colors for file types */
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static struct {
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int num[2];
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int bold;
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} colors[C_NUMCOLORS];
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#endif
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void
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printscol(DISPLAY *dp)
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{
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FTSENT *p;
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for (p = dp->list; p; p = p->fts_link) {
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if (IS_NOPRINT(p))
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continue;
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(void)printaname(p, dp->s_inode, dp->s_block);
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(void)putchar('\n');
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}
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}
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/*
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* print name in current style
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*/
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int
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printname(const char *name)
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{
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if (f_octal || f_octal_escape)
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return prn_octal(name);
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else if (f_nonprint)
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return prn_printable(name);
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else
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return printf("%s", name);
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}
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void
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printlong(DISPLAY *dp)
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{
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struct stat *sp;
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FTSENT *p;
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NAMES *np;
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char buf[20];
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#ifdef COLORLS
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int color_printed = 0;
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#endif
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int haveacls;
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dev_t prevdev;
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if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
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(void)printf("total %lu\n", howmany(dp->btotal, blocksize));
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haveacls = 1;
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prevdev = (dev_t)-1;
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for (p = dp->list; p; p = p->fts_link) {
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if (IS_NOPRINT(p))
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continue;
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sp = p->fts_statp;
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if (f_inode)
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(void)printf("%*lu ", dp->s_inode, (u_long)sp->st_ino);
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if (f_size)
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(void)printf("%*lld ",
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dp->s_block, howmany(sp->st_blocks, blocksize));
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strmode(sp->st_mode, buf);
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/*
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* Cache whether or not the filesystem supports ACL's to
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* avoid expensive syscalls. Try again when we change devices.
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*/
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if (haveacls || sp->st_dev != prevdev) {
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aclmode(buf, p, &haveacls);
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prevdev = sp->st_dev;
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}
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np = p->fts_pointer;
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(void)printf("%s %*u %-*s %-*s ", buf, dp->s_nlink,
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sp->st_nlink, dp->s_user, np->user, dp->s_group,
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np->group);
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if (f_flags)
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(void)printf("%-*s ", dp->s_flags, np->flags);
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if (f_label)
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(void)printf("%-*s ", dp->s_label, np->label);
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if (S_ISCHR(sp->st_mode) || S_ISBLK(sp->st_mode))
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if (minor(sp->st_rdev) > 255 || minor(sp->st_rdev) < 0)
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(void)printf("%3d, 0x%08x ",
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major(sp->st_rdev),
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(u_int)minor(sp->st_rdev));
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else
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(void)printf("%3d, %3d ",
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major(sp->st_rdev), minor(sp->st_rdev));
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else if (dp->bcfile)
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(void)printf("%*s%*lld ",
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8 - dp->s_size, "", dp->s_size, sp->st_size);
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else
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printsize(dp->s_size, sp->st_size);
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if (f_accesstime)
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printtime(sp->st_atime);
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else if (f_statustime)
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printtime(sp->st_ctime);
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else
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printtime(sp->st_mtime);
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#ifdef COLORLS
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if (f_color)
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color_printed = colortype(sp->st_mode);
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#endif
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(void)printname(p->fts_name);
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#ifdef COLORLS
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if (f_color && color_printed)
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endcolor(0);
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#endif
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if (f_type)
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(void)printtype(sp->st_mode);
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if (S_ISLNK(sp->st_mode))
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printlink(p);
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(void)putchar('\n');
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}
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}
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void
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printstream(DISPLAY *dp)
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{
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FTSENT *p;
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extern int termwidth;
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int chcnt;
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for (p = dp->list, chcnt = 0; p; p = p->fts_link) {
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if (p->fts_number == NO_PRINT)
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continue;
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if (strlen(p->fts_name) + chcnt +
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(p->fts_link ? 2 : 0) >= (unsigned)termwidth) {
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putchar('\n');
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chcnt = 0;
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}
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chcnt += printaname(p, dp->s_inode, dp->s_block);
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if (p->fts_link) {
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printf(", ");
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chcnt += 2;
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}
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}
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if (chcnt)
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putchar('\n');
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}
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void
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printcol(DISPLAY *dp)
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{
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extern int termwidth;
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static FTSENT **array;
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static int lastentries = -1;
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FTSENT *p;
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int base;
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int chcnt;
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int cnt;
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int col;
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int colwidth;
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int endcol;
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int num;
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int numcols;
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int numrows;
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int row;
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int tabwidth;
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if (f_notabs)
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tabwidth = 1;
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else
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tabwidth = 8;
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/*
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* Have to do random access in the linked list -- build a table
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* of pointers.
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*/
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if (dp->entries > lastentries) {
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lastentries = dp->entries;
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if ((array =
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realloc(array, dp->entries * sizeof(FTSENT *))) == NULL) {
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warn(NULL);
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printscol(dp);
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}
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}
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for (p = dp->list, num = 0; p; p = p->fts_link)
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if (p->fts_number != NO_PRINT)
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array[num++] = p;
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colwidth = dp->maxlen;
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if (f_inode)
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colwidth += dp->s_inode + 1;
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if (f_size)
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colwidth += dp->s_block + 1;
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if (f_type)
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colwidth += 1;
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colwidth = (colwidth + tabwidth) & ~(tabwidth - 1);
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if (termwidth < 2 * colwidth) {
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printscol(dp);
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return;
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}
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numcols = termwidth / colwidth;
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numrows = num / numcols;
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if (num % numcols)
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++numrows;
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if (dp->list->fts_level != FTS_ROOTLEVEL && (f_longform || f_size))
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(void)printf("total %lu\n", howmany(dp->btotal, blocksize));
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base = 0;
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for (row = 0; row < numrows; ++row) {
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endcol = colwidth;
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if (!f_sortacross)
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base = row;
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for (col = 0, chcnt = 0; col < numcols; ++col) {
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chcnt += printaname(array[base], dp->s_inode,
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dp->s_block);
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if (f_sortacross)
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base++;
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else
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base += numrows;
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if (base >= num)
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break;
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while ((cnt = ((chcnt + tabwidth) & ~(tabwidth - 1)))
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<= endcol) {
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if (f_sortacross && col + 1 >= numcols)
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break;
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(void)putchar(f_notabs ? ' ' : '\t');
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chcnt = cnt;
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}
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endcol += colwidth;
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}
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(void)putchar('\n');
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}
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}
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/*
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* print [inode] [size] name
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* return # of characters printed, no trailing characters.
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*/
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static int
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printaname(FTSENT *p, u_long inodefield, u_long sizefield)
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{
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struct stat *sp;
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int chcnt;
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#ifdef COLORLS
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int color_printed = 0;
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#endif
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sp = p->fts_statp;
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chcnt = 0;
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if (f_inode)
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chcnt += printf("%*lu ", (int)inodefield, (u_long)sp->st_ino);
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if (f_size)
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chcnt += printf("%*lld ",
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(int)sizefield, howmany(sp->st_blocks, blocksize));
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#ifdef COLORLS
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if (f_color)
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color_printed = colortype(sp->st_mode);
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#endif
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chcnt += printname(p->fts_name);
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#ifdef COLORLS
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if (f_color && color_printed)
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endcolor(0);
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#endif
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if (f_type)
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chcnt += printtype(sp->st_mode);
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return (chcnt);
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}
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static void
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printtime(time_t ftime)
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{
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char longstring[80];
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static time_t now;
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const char *format;
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static int d_first = -1;
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if (d_first < 0)
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d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
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if (now == 0)
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now = time(NULL);
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#define SIXMONTHS ((365 / 2) * 86400)
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if (f_sectime)
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/* mmm dd hh:mm:ss yyyy || dd mmm hh:mm:ss yyyy */
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format = d_first ? "%e %b %T %Y " : "%b %e %T %Y ";
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else if (ftime + SIXMONTHS > now && ftime < now + SIXMONTHS)
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/* mmm dd hh:mm || dd mmm hh:mm */
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format = d_first ? "%e %b %R " : "%b %e %R ";
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else
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/* mmm dd yyyy || dd mmm yyyy */
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format = d_first ? "%e %b %Y " : "%b %e %Y ";
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strftime(longstring, sizeof(longstring), format, localtime(&ftime));
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fputs(longstring, stdout);
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}
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static int
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printtype(u_int mode)
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{
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if (f_slash) {
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if ((mode & S_IFMT) == S_IFDIR) {
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(void)putchar('/');
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return (1);
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}
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return (0);
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}
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switch (mode & S_IFMT) {
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case S_IFDIR:
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(void)putchar('/');
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return (1);
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case S_IFIFO:
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(void)putchar('|');
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return (1);
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case S_IFLNK:
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(void)putchar('@');
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return (1);
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case S_IFSOCK:
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(void)putchar('=');
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return (1);
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case S_IFWHT:
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(void)putchar('%');
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return (1);
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default:
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break;
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}
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if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
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(void)putchar('*');
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return (1);
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}
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return (0);
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}
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#ifdef COLORLS
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static int
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putch(int c)
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{
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(void)putchar(c);
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return 0;
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}
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static int
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writech(int c)
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{
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char tmp = c;
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(void)write(STDOUT_FILENO, &tmp, 1);
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return 0;
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}
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static void
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printcolor(Colors c)
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{
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char *ansiseq;
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if (colors[c].bold)
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tputs(enter_bold, 1, putch);
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if (colors[c].num[0] != -1) {
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ansiseq = tgoto(ansi_fgcol, 0, colors[c].num[0]);
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if (ansiseq)
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tputs(ansiseq, 1, putch);
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}
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if (colors[c].num[1] != -1) {
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ansiseq = tgoto(ansi_bgcol, 0, colors[c].num[1]);
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if (ansiseq)
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tputs(ansiseq, 1, putch);
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}
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}
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static void
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endcolor(int sig)
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{
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tputs(ansi_coloff, 1, sig ? writech : putch);
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tputs(attrs_off, 1, sig ? writech : putch);
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}
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static int
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colortype(mode_t mode)
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{
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switch (mode & S_IFMT) {
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case S_IFDIR:
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if (mode & S_IWOTH)
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if (mode & S_ISTXT)
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printcolor(C_WSDIR);
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else
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printcolor(C_WDIR);
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else
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printcolor(C_DIR);
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return (1);
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case S_IFLNK:
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printcolor(C_LNK);
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return (1);
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case S_IFSOCK:
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printcolor(C_SOCK);
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return (1);
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case S_IFIFO:
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printcolor(C_FIFO);
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return (1);
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case S_IFBLK:
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printcolor(C_BLK);
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return (1);
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case S_IFCHR:
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printcolor(C_CHR);
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return (1);
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}
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if (mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
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if (mode & S_ISUID)
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printcolor(C_SUID);
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else if (mode & S_ISGID)
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printcolor(C_SGID);
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else
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|
printcolor(C_EXEC);
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
parsecolors(const char *cs)
|
|
{
|
|
int i;
|
|
int j;
|
|
size_t len;
|
|
char c[2];
|
|
short legacy_warn = 0;
|
|
|
|
if (cs == NULL)
|
|
cs = ""; /* LSCOLORS not set */
|
|
len = strlen(cs);
|
|
for (i = 0; i < C_NUMCOLORS; i++) {
|
|
colors[i].bold = 0;
|
|
|
|
if (len <= 2 * i) {
|
|
c[0] = defcolors[2 * i];
|
|
c[1] = defcolors[2 * i + 1];
|
|
} else {
|
|
c[0] = cs[2 * i];
|
|
c[1] = cs[2 * i + 1];
|
|
}
|
|
for (j = 0; j < 2; j++) {
|
|
/* Legacy colours used 0-7 */
|
|
if (c[j] >= '0' && c[j] <= '7') {
|
|
colors[i].num[j] = c[j] - '0';
|
|
if (!legacy_warn) {
|
|
warnx("LSCOLORS should use "
|
|
"characters a-h instead of 0-9 ("
|
|
"see the manual page)");
|
|
}
|
|
legacy_warn = 1;
|
|
} else if (c[j] >= 'a' && c[j] <= 'h')
|
|
colors[i].num[j] = c[j] - 'a';
|
|
else if (c[j] >= 'A' && c[j] <= 'H') {
|
|
colors[i].num[j] = c[j] - 'A';
|
|
colors[i].bold = 1;
|
|
} else if (tolower((unsigned char)c[j] == 'x'))
|
|
colors[i].num[j] = -1;
|
|
else {
|
|
warnx("invalid character '%c' in LSCOLORS"
|
|
" env var", c[j]);
|
|
colors[i].num[j] = -1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
colorquit(int sig)
|
|
{
|
|
endcolor(sig);
|
|
|
|
(void)signal(sig, SIG_DFL);
|
|
(void)kill(getpid(), sig);
|
|
}
|
|
|
|
#endif /* COLORLS */
|
|
|
|
static void
|
|
printlink(const FTSENT *p)
|
|
{
|
|
int lnklen;
|
|
char name[MAXPATHLEN + 1];
|
|
char path[MAXPATHLEN + 1];
|
|
|
|
if (p->fts_level == FTS_ROOTLEVEL)
|
|
(void)snprintf(name, sizeof(name), "%s", p->fts_name);
|
|
else
|
|
(void)snprintf(name, sizeof(name),
|
|
"%s/%s", p->fts_parent->fts_accpath, p->fts_name);
|
|
if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) {
|
|
(void)fprintf(stderr, "\nls: %s: %s\n", name, strerror(errno));
|
|
return;
|
|
}
|
|
path[lnklen] = '\0';
|
|
(void)printf(" -> ");
|
|
(void)printname(path);
|
|
}
|
|
|
|
static void
|
|
printsize(size_t width, off_t bytes)
|
|
{
|
|
double dbytes;
|
|
unit_t unit;
|
|
|
|
if (f_humanval) {
|
|
dbytes = bytes;
|
|
unit = unit_adjust(&dbytes);
|
|
|
|
if (dbytes == 0)
|
|
(void)printf("%*s ", width, "0B");
|
|
else
|
|
(void)printf("%*.*f%c ", width - 1, dbytes > 10 ? 0 : 1,
|
|
dbytes, "BKMGTPE"[unit]);
|
|
} else
|
|
(void)printf("%*lld ", width, bytes);
|
|
}
|
|
|
|
/*
|
|
* Output in "human-readable" format. Uses 3 digits max and puts
|
|
* unit suffixes at the end. Makes output compact and easy to read,
|
|
* especially on huge disks.
|
|
*
|
|
*/
|
|
static unit_t
|
|
unit_adjust(double *val)
|
|
{
|
|
double abval;
|
|
unit_t unit;
|
|
u_int unit_sz;
|
|
|
|
abval = fabs(*val);
|
|
|
|
unit_sz = abval ? (u_int)ilogb(abval) / 10 : 0;
|
|
|
|
if (unit_sz >= (u_int)UNIT_MAX) {
|
|
unit = NONE;
|
|
} else {
|
|
unit = unitp[unit_sz];
|
|
*val /= (double)vals_base2[unit_sz];
|
|
}
|
|
|
|
return (unit);
|
|
}
|
|
|
|
static void
|
|
aclmode(char *buf, FTSENT *p, int *haveacls)
|
|
{
|
|
char name[MAXPATHLEN + 1];
|
|
int entries, ret;
|
|
acl_t facl;
|
|
acl_entry_t ae;
|
|
|
|
/*
|
|
* Add a + after the standard rwxrwxrwx mode if the file has an
|
|
* extended ACL. strmode() reserves space at the end of the string.
|
|
*/
|
|
if (p->fts_level == FTS_ROOTLEVEL)
|
|
snprintf(name, sizeof(name), "%s", p->fts_name);
|
|
else
|
|
snprintf(name, sizeof(name), "%s/%s",
|
|
p->fts_parent->fts_accpath, p->fts_name);
|
|
if ((ret = pathconf(name, _PC_ACL_EXTENDED)) <= 0) {
|
|
if (ret < 0 && errno != EINVAL)
|
|
warn("%s", name);
|
|
else
|
|
*haveacls = 0;
|
|
return;
|
|
}
|
|
*haveacls = 1;
|
|
if ((facl = acl_get_file(name, ACL_TYPE_ACCESS)) != NULL) {
|
|
if (acl_get_entry(facl, ACL_FIRST_ENTRY, &ae) == 1) {
|
|
entries = 0;
|
|
do
|
|
entries++;
|
|
while (acl_get_entry(facl, ACL_NEXT_ENTRY, &ae) == 1);
|
|
if (entries != 3)
|
|
buf[10] = '+';
|
|
}
|
|
acl_free(facl);
|
|
} else
|
|
warn("%s", name);
|
|
}
|