2a84e78d2e
As of FreeBSD 6, devices can only be opened through devfs. These device nodes don't have major and minor numbers anymore. The st_rdev field in struct stat is simply based a copy of st_ino. Simply display device numbers as hexadecimal, using "%#jx". This is allowed by POSIX, since it explicitly states things like the following (example taken from ls(1)): "If the file is a character special or block special file, the size of the file may be replaced with implementation-defined information associated with the device in question." This makes the output of these commands more compact. For example, ls(1) now uses approximately four columns less. While there, simplify the column length calculation from ls(1) by calling snprintf() with a NULL buffer. Don't be afraid; if needed one can still obtain individual major/minor numbers using stat(1).
681 lines
15 KiB
C
681 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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* 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 <langinfo.h>
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#include <libutil.h>
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#include <stdio.h>
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#include <stdint.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(const FTSENT *, u_long, u_long);
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static void printdev(size_t, dev_t);
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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 *, const FTSENT *);
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#define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT)
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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(const 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 prn_normal(name);
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}
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void
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printlong(const 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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if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) &&
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(f_longform || f_size)) {
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(void)printf("total %lu\n", howmany(dp->btotal, blocksize));
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}
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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("%*jd ",
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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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aclmode(buf, p);
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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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printdev(dp->s_size, sp->st_rdev);
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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_birthtime)
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printtime(sp->st_birthtime);
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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(const DISPLAY *dp)
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{
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FTSENT *p;
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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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/* XXX strlen does not take octal escapes into account. */
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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(const DISPLAY *dp)
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{
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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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FTSENT **narray;
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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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if ((narray =
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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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return;
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}
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lastentries = dp->entries;
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array = narray;
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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 == NULL || dp->list->fts_level != FTS_ROOTLEVEL) &&
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(f_longform || f_size)) {
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(void)printf("total %lu\n", howmany(dp->btotal, blocksize));
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}
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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(const 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("%*jd ",
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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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/*
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* Print device special file major and minor numbers.
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*/
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static void
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printdev(size_t width, dev_t dev)
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{
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(void)printf("%#*jx ", (u_int)width, (uintmax_t)dev);
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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 = 0;
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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_timeformat) /* user specified format */
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format = f_timeformat;
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else 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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fputc(' ', 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 = (char)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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default:;
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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);
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return (1);
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}
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return (0);
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}
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void
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parsecolors(const char *cs)
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{
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int i;
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int j;
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size_t len;
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char c[2];
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short legacy_warn = 0;
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if (cs == NULL)
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cs = ""; /* LSCOLORS not set */
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len = strlen(cs);
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for (i = 0; i < (int)C_NUMCOLORS; i++) {
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colors[i].bold = 0;
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if (len <= 2 * (size_t)i) {
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c[0] = defcolors[2 * i];
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c[1] = defcolors[2 * i + 1];
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} 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)
|
|
{
|
|
|
|
if (f_humanval) {
|
|
/*
|
|
* Reserve one space before the size and allocate room for
|
|
* the trailing '\0'.
|
|
*/
|
|
char buf[HUMANVALSTR_LEN - 1 + 1];
|
|
|
|
humanize_number(buf, sizeof(buf), (int64_t)bytes, "",
|
|
HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
|
|
(void)printf("%*s ", (u_int)width, buf);
|
|
} else
|
|
(void)printf("%*jd ", (u_int)width, bytes);
|
|
}
|
|
|
|
/*
|
|
* Add a + after the standard rwxrwxrwx mode if the file has an
|
|
* ACL. strmode() reserves space at the end of the string.
|
|
*/
|
|
static void
|
|
aclmode(char *buf, const FTSENT *p)
|
|
{
|
|
char name[MAXPATHLEN + 1];
|
|
int ret, trivial;
|
|
static dev_t previous_dev = NODEV;
|
|
static int supports_acls = -1;
|
|
static int type = ACL_TYPE_ACCESS;
|
|
acl_t facl;
|
|
|
|
/*
|
|
* XXX: ACLs are not supported on whiteouts and device files
|
|
* residing on UFS.
|
|
*/
|
|
if (S_ISCHR(p->fts_statp->st_mode) || S_ISBLK(p->fts_statp->st_mode) ||
|
|
S_ISWHT(p->fts_statp->st_mode))
|
|
return;
|
|
|
|
if (previous_dev == p->fts_statp->st_dev && supports_acls == 0)
|
|
return;
|
|
|
|
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 (previous_dev != p->fts_statp->st_dev) {
|
|
previous_dev = p->fts_statp->st_dev;
|
|
supports_acls = 0;
|
|
|
|
ret = lpathconf(name, _PC_ACL_NFS4);
|
|
if (ret > 0) {
|
|
type = ACL_TYPE_NFS4;
|
|
supports_acls = 1;
|
|
} else if (ret < 0 && errno != EINVAL) {
|
|
warn("%s", name);
|
|
return;
|
|
}
|
|
if (supports_acls == 0) {
|
|
ret = lpathconf(name, _PC_ACL_EXTENDED);
|
|
if (ret > 0) {
|
|
type = ACL_TYPE_ACCESS;
|
|
supports_acls = 1;
|
|
} else if (ret < 0 && errno != EINVAL) {
|
|
warn("%s", name);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
if (supports_acls == 0)
|
|
return;
|
|
facl = acl_get_link_np(name, type);
|
|
if (facl == NULL) {
|
|
warn("%s", name);
|
|
return;
|
|
}
|
|
if (acl_is_trivial_np(facl, &trivial)) {
|
|
acl_free(facl);
|
|
warn("%s", name);
|
|
return;
|
|
}
|
|
if (!trivial)
|
|
buf[10] = '+';
|
|
acl_free(facl);
|
|
}
|