1230 lines
28 KiB
C
1230 lines
28 KiB
C
/* $NetBSD: stat.c,v 1.53 2024/03/14 21:17:54 rillig Exp $ */
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/*
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* Copyright (c) 2002-2011 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Brown.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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/* config checked libc, we need the prototype as well */
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#undef HAVE_DEVNAME
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#endif
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#include <sys/cdefs.h>
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#if !defined(lint)
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__RCSID("$NetBSD: stat.c,v 1.53 2024/03/14 21:17:54 rillig Exp $");
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#endif
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#if ! HAVE_NBTOOL_CONFIG_H
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#define HAVE_STRUCT_STAT_ST_FLAGS 1
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#define HAVE_STRUCT_STAT_ST_GEN 1
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#define HAVE_STRUCT_STAT_ST_BIRTHTIME 1
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#define HAVE_STRUCT_STAT_ST_BIRTHTIMENSEC 1
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#define HAVE_STRUCT_STAT_ST_MTIMENSEC 1
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#define HAVE_DEVNAME 1
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#endif /* HAVE_NBTOOL_CONFIG_H */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <grp.h>
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#include <limits.h>
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#include <pwd.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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#if HAVE_STRUCT_STAT_ST_FLAGS && !HAVE_NBTOOL_CONFIG_H
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#include <util.h>
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#endif
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#include <vis.h>
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#if HAVE_STRUCT_STAT_ST_FLAGS
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#define DEF_F "%#Xf "
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#define RAW_F "%f "
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#define SHELL_F " st_flags=%f"
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#else /* HAVE_STRUCT_STAT_ST_FLAGS */
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#define DEF_F
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#define RAW_F
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#define SHELL_F
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#endif /* HAVE_STRUCT_STAT_ST_FLAGS */
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#if HAVE_STRUCT_STAT_ST_BIRTHTIME
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#define DEF_B "\"%SB\" "
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#define RAW_B "%B "
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#define SHELL_B "st_birthtime=%SB "
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#define LINUX_B "%n Birth: %SB"
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#else /* HAVE_STRUCT_STAT_ST_BIRTHTIME */
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#define DEF_B
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#define RAW_B
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#define SHELL_B
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#define LINUX_B
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#endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */
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#if HAVE_STRUCT_STAT_ST_ATIM
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#define st_atimespec st_atim
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#define st_ctimespec st_ctim
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#define st_mtimespec st_mtim
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#endif /* HAVE_STRUCT_STAT_ST_ATIM */
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#define DEF_FORMAT \
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"%d %i %Sp %l %Su %Sg %r %z \"%Sa\" \"%Sm\" \"%Sc\" " DEF_B \
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"%k %b " DEF_F "%N"
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#define RAW_FORMAT "%d %i %#p %l %u %g %r %z %a %m %c " RAW_B \
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"%k %b " RAW_F "%N"
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#define LS_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%SY"
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#define LSF_FORMAT "%Sp %l %Su %Sg %Z %Sm %N%T%SY"
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#define SHELL_FORMAT \
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"st_dev=%d st_ino=%i st_mode=%#p st_nlink=%l " \
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"st_uid=%u st_gid=%g st_rdev=%r st_size=%z " \
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"st_atime=%Sa st_mtime=%Sm st_ctime=%Sc " SHELL_B \
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"st_blksize=%k st_blocks=%b" SHELL_F
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#define LINUX_FORMAT \
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" File: \"%N\"%n" \
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" Size: %-11z Blocks: %-11b IO Block: %-11k %HT%n" \
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"Device: %Hd,%Ld Inode: %i Links: %l%n" \
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" Mode: (%Mp%03OLp/%.10Sp) Uid: (%5u/%8Su) Gid: (%5g/%8Sg)%n" \
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"Access: %Sa%n" \
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"Modify: %Sm%n" \
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"Change: %Sc" \
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LINUX_B
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#define TIME_FORMAT "%b %e %T %Y"
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#define FLAG_POUND 0x01
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#define FLAG_SPACE 0x02
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#define FLAG_PLUS 0x04
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#define FLAG_ZERO 0x08
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#define FLAG_MINUS 0x10
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/*
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* These format characters must all be unique, except the magic one.
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*/
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#define FMT_MAGIC '%'
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#define FMT_DOT '.'
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#define SIMPLE_NEWLINE 'n'
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#define SIMPLE_TAB 't'
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#define SIMPLE_PERCENT '%'
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#define SIMPLE_NUMBER '@'
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#define FMT_POUND '#'
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#define FMT_SPACE ' '
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#define FMT_PLUS '+'
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#define FMT_ZERO '0'
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#define FMT_MINUS '-'
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#define FMT_DECIMAL 'D'
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#define FMT_OCTAL 'O'
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#define FMT_UNSIGNED 'U'
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#define FMT_HEX 'X'
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#define FMT_FLOAT 'F'
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#define FMT_STRING 'S'
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#define FMTF_DECIMAL 0x01
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#define FMTF_OCTAL 0x02
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#define FMTF_UNSIGNED 0x04
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#define FMTF_HEX 0x08
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#define FMTF_FLOAT 0x10
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#define FMTF_STRING 0x20
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#define HIGH_PIECE 'H'
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#define MIDDLE_PIECE 'M'
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#define LOW_PIECE 'L'
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#define SHOW_realpath 'R'
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#define SHOW_st_dev 'd'
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#define SHOW_st_ino 'i'
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#define SHOW_st_mode 'p'
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#define SHOW_st_nlink 'l'
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#define SHOW_st_uid 'u'
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#define SHOW_st_gid 'g'
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#define SHOW_st_rdev 'r'
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#define SHOW_st_atime 'a'
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#define SHOW_st_mtime 'm'
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#define SHOW_st_ctime 'c'
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#define SHOW_st_btime 'B'
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#define SHOW_st_size 'z'
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#define SHOW_st_blocks 'b'
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#define SHOW_st_blksize 'k'
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#define SHOW_st_flags 'f'
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#define SHOW_st_gen 'v'
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#define SHOW_symlink 'Y'
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#define SHOW_filetype 'T'
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#define SHOW_filename 'N'
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#define SHOW_sizerdev 'Z'
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static void usage(const char *) __dead;
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static void output(const struct stat *, const char *,
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const char *, int, int, int);
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static int format1(const struct stat *, /* stat info */
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const char *, /* the file name */
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const char *, int, /* the format string itself */
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char *, size_t, /* a place to put the output */
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int, int, int, int, /* the parsed format */
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int, int, int);
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static const char *timefmt;
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static int linkfail;
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#define addchar(s, c, nl) \
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do { \
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(void)fputc((c), (s)); \
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(*nl) = ((c) == '\n'); \
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} while (0/*CONSTCOND*/)
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int
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main(int argc, char *argv[])
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{
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struct stat st;
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int ch, rc, errs, am_readlink;
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int lsF, fmtchar, usestat, fn, nonl, quiet;
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const char *statfmt, *options, *synopsis;
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am_readlink = 0;
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lsF = 0;
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fmtchar = '\0';
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usestat = 0;
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nonl = 0;
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quiet = 0;
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linkfail = 0;
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statfmt = NULL;
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timefmt = NULL;
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setprogname(argv[0]);
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if (strcmp(getprogname(), "readlink") == 0) {
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am_readlink = 1;
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options = "fnqsv";
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synopsis = "[-fnqsv] [file ...]";
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statfmt = "%Y";
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fmtchar = 'f';
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quiet = 1;
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} else {
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options = "f:FlLnqrst:x";
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synopsis = "[-FlLnqrsx] [-f format] [-t timefmt] [file ...]";
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}
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while ((ch = getopt(argc, argv, options)) != -1)
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switch (ch) {
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case 'F':
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lsF = 1;
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break;
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case 'L':
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usestat = 1;
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break;
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case 'n':
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nonl = 1;
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break;
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case 'q':
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quiet = 1;
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break;
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case 'f':
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if (am_readlink) {
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statfmt = "%R";
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break;
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}
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statfmt = optarg;
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/* FALLTHROUGH */
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case 'l':
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case 'r':
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case 's':
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if (am_readlink) {
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quiet = 1;
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break;
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}
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/*FALLTHROUGH*/
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case 'x':
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if (fmtchar != 0)
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errx(1, "can't use format '%c' with '%c'",
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fmtchar, ch);
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fmtchar = ch;
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break;
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case 't':
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timefmt = optarg;
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break;
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case 'v':
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quiet = 0;
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break;
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default:
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usage(synopsis);
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}
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argc -= optind;
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argv += optind;
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fn = 1;
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if (fmtchar == '\0') {
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if (lsF)
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fmtchar = 'l';
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else {
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fmtchar = 'f';
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statfmt = DEF_FORMAT;
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}
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}
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if (lsF && fmtchar != 'l')
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errx(1, "can't use format '%c' with -F", fmtchar);
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switch (fmtchar) {
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case 'f':
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/* statfmt already set */
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break;
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case 'l':
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statfmt = lsF ? LSF_FORMAT : LS_FORMAT;
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break;
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case 'r':
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statfmt = RAW_FORMAT;
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break;
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case 's':
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statfmt = SHELL_FORMAT;
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if (timefmt == NULL)
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timefmt = "%s";
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break;
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case 'x':
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statfmt = LINUX_FORMAT;
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if (timefmt == NULL)
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timefmt = "%Y-%m-%d %H:%M:%S.%f %z";
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break;
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default:
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usage(synopsis);
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/*NOTREACHED*/
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}
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if (timefmt == NULL)
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timefmt = TIME_FORMAT;
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errs = 0;
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do {
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if (argc == 0) {
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fn = 0;
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rc = fstat(STDIN_FILENO, &st);
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} else if (usestat) {
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/*
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* Try stat() and if it fails, fall back to
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* lstat() just in case we're examining a
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* broken symlink.
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*/
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if ((rc = stat(argv[0], &st)) == -1 &&
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errno == ENOENT &&
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(rc = lstat(argv[0], &st)) == -1)
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errno = ENOENT;
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} else
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rc = lstat(argv[0], &st);
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if (rc == -1) {
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errs = 1;
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linkfail = 1;
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if (!quiet)
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warn("%s: %s",
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argc == 0 ? "(stdin)" : argv[0],
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usestat ? "stat" : "lstat");
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} else
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output(&st, argv[0], statfmt, fn, nonl, quiet);
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argv++;
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argc--;
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fn++;
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} while (argc > 0);
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return (am_readlink ? linkfail : errs);
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}
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static void
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usage(const char *synopsis)
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{
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(void)fprintf(stderr, "usage: %s %s\n", getprogname(), synopsis);
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exit(1);
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}
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/*
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* Parses a format string.
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*/
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static void
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output(const struct stat *st, const char *file,
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const char *statfmt, int fn, int nonl, int quiet)
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{
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int flags, size, prec, ofmt, hilo, what;
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/*
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* buf size is enough for an item of length PATH_MAX,
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* multiplied by 4 for vis encoding, plus 4 for symlink
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* " -> " prefix, plus 1 for \0 terminator.
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*/
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char buf[PATH_MAX * 4 + 4 + 1];
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const char *subfmt;
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int nl, t, i;
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nl = 1;
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while (*statfmt != '\0') {
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/*
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* Non-format characters go straight out.
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*/
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if (*statfmt != FMT_MAGIC) {
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addchar(stdout, *statfmt, &nl);
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statfmt++;
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continue;
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}
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/*
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* The current format "substring" starts here,
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* and then we skip the magic.
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*/
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subfmt = statfmt;
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statfmt++;
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/*
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* Some simple one-character "formats".
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*/
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switch (*statfmt) {
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case SIMPLE_NEWLINE:
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addchar(stdout, '\n', &nl);
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statfmt++;
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continue;
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case SIMPLE_TAB:
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addchar(stdout, '\t', &nl);
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statfmt++;
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continue;
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case SIMPLE_PERCENT:
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addchar(stdout, '%', &nl);
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statfmt++;
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continue;
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case SIMPLE_NUMBER: {
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char num[12], *p;
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snprintf(num, sizeof(num), "%d", fn);
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for (p = &num[0]; *p; p++)
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addchar(stdout, *p, &nl);
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statfmt++;
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continue;
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}
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}
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|
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/*
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* This must be an actual format string. Format strings are
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* similar to printf(3) formats up to a point, and are of
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* the form:
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*
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* % required start of format
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* [-# +0] opt. format characters
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* size opt. field width
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* . opt. decimal separator, followed by
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* prec opt. precision
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* fmt opt. output specifier (string, numeric, etc.)
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* sub opt. sub field specifier (high, middle, low)
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* datum required field specifier (size, mode, etc)
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*
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* Only the % and the datum selector are required. All data
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* have reasonable default output forms. The "sub" specifier
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* only applies to certain data (mode, dev, rdev, filetype).
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* The symlink output defaults to STRING, yet will only emit
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* the leading " -> " if STRING is explicitly specified. The
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* sizerdev datum will generate rdev output for character or
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* block devices, and size output for all others.
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* For STRING output, the # format requests vis encoding.
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*/
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flags = 0;
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do {
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if (*statfmt == FMT_POUND)
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flags |= FLAG_POUND;
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else if (*statfmt == FMT_SPACE)
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flags |= FLAG_SPACE;
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else if (*statfmt == FMT_PLUS)
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flags |= FLAG_PLUS;
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else if (*statfmt == FMT_ZERO)
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flags |= FLAG_ZERO;
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else if (*statfmt == FMT_MINUS)
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flags |= FLAG_MINUS;
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else
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break;
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statfmt++;
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} while (1/*CONSTCOND*/);
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size = -1;
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if (isdigit((unsigned char)*statfmt)) {
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size = 0;
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while (isdigit((unsigned char)*statfmt)) {
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size = (size * 10) + (*statfmt - '0');
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statfmt++;
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if (size < 0)
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goto badfmt;
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}
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}
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|
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prec = -1;
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if (*statfmt == FMT_DOT) {
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statfmt++;
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prec = 0;
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while (isdigit((unsigned char)*statfmt)) {
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prec = (prec * 10) + (*statfmt - '0');
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statfmt++;
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if (prec < 0)
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goto badfmt;
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}
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}
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#define fmtcase(x, y) case (y): (x) = (y); statfmt++; break
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#define fmtcasef(x, y, z) case (y): (x) = (z); statfmt++; break
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switch (*statfmt) {
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fmtcasef(ofmt, FMT_DECIMAL, FMTF_DECIMAL);
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fmtcasef(ofmt, FMT_OCTAL, FMTF_OCTAL);
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fmtcasef(ofmt, FMT_UNSIGNED, FMTF_UNSIGNED);
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fmtcasef(ofmt, FMT_HEX, FMTF_HEX);
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fmtcasef(ofmt, FMT_FLOAT, FMTF_FLOAT);
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fmtcasef(ofmt, FMT_STRING, FMTF_STRING);
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default:
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ofmt = 0;
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break;
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}
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switch (*statfmt) {
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fmtcase(hilo, HIGH_PIECE);
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fmtcase(hilo, MIDDLE_PIECE);
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fmtcase(hilo, LOW_PIECE);
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default:
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hilo = 0;
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break;
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}
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|
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switch (*statfmt) {
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fmtcase(what, SHOW_realpath);
|
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fmtcase(what, SHOW_st_dev);
|
|
fmtcase(what, SHOW_st_ino);
|
|
fmtcase(what, SHOW_st_mode);
|
|
fmtcase(what, SHOW_st_nlink);
|
|
fmtcase(what, SHOW_st_uid);
|
|
fmtcase(what, SHOW_st_gid);
|
|
fmtcase(what, SHOW_st_rdev);
|
|
fmtcase(what, SHOW_st_atime);
|
|
fmtcase(what, SHOW_st_mtime);
|
|
fmtcase(what, SHOW_st_ctime);
|
|
fmtcase(what, SHOW_st_btime);
|
|
fmtcase(what, SHOW_st_size);
|
|
fmtcase(what, SHOW_st_blocks);
|
|
fmtcase(what, SHOW_st_blksize);
|
|
fmtcase(what, SHOW_st_flags);
|
|
fmtcase(what, SHOW_st_gen);
|
|
fmtcase(what, SHOW_symlink);
|
|
fmtcase(what, SHOW_filetype);
|
|
fmtcase(what, SHOW_filename);
|
|
fmtcase(what, SHOW_sizerdev);
|
|
default:
|
|
goto badfmt;
|
|
}
|
|
#undef fmtcasef
|
|
#undef fmtcase
|
|
|
|
t = format1(st,
|
|
file,
|
|
subfmt, statfmt - subfmt,
|
|
buf, sizeof(buf),
|
|
flags, size, prec, ofmt, hilo, what, quiet);
|
|
|
|
for (i = 0; i < t && i < (int)(sizeof(buf) - 1); i++)
|
|
addchar(stdout, buf[i], &nl);
|
|
|
|
continue;
|
|
|
|
badfmt:
|
|
errx(1, "%.*s: bad format",
|
|
(int)(statfmt - subfmt + 1), subfmt);
|
|
}
|
|
|
|
if (!nl && !nonl)
|
|
(void)fputc('\n', stdout);
|
|
(void)fflush(stdout);
|
|
}
|
|
|
|
static const char *
|
|
fmttime(char *buf, size_t len, const char *fmt, time_t secs, long nsecs)
|
|
{
|
|
struct tm tm;
|
|
const char *fpb, *fp1, *fp2; /* pointers into fmt */
|
|
char *fmt2 = NULL; /* replacement fmt (if not NULL) */
|
|
/* XXX init of next twp for stupid gcc only */
|
|
char *f2p = NULL; /* ptr into fmt2 - last added */
|
|
size_t flen = 0;
|
|
size_t o;
|
|
int sl;
|
|
|
|
if (localtime_r(&secs, &tm) == NULL) {
|
|
secs = 0;
|
|
(void)localtime_r(&secs, &tm);
|
|
}
|
|
for (fp1 = fpb = fmt; (fp2 = strchr(fp1, '%')) != NULL; ) {
|
|
if (fp2[1] != 'f') {
|
|
/* make sure we don't find the 2nd '%' in "%%" */
|
|
fp1 = fp2 + 1 + (fp2[1] != '\0');
|
|
continue;
|
|
}
|
|
if (fmt2 == NULL) {
|
|
/* allow for ~100 %f's in the format ... */
|
|
flen = strlen(fmt) + 1024;
|
|
|
|
if ((fmt2 = calloc(flen, 1)) == NULL) {
|
|
fp1 = fp2 + 2;
|
|
continue;
|
|
}
|
|
f2p = fmt2;
|
|
|
|
o = (size_t)(fp2 - fpb);
|
|
memcpy(f2p, fpb, o); /* must fit */
|
|
fmt = fmt2;
|
|
} else {
|
|
o = (size_t)(fp2 - fpb);
|
|
if (flen > o)
|
|
memcpy(f2p, fpb, o);
|
|
}
|
|
if (flen < o + 10) { /* 9 digits + \0 == 10 */
|
|
*f2p = '\0';
|
|
break;
|
|
}
|
|
f2p += o;
|
|
flen -= o;
|
|
sl = snprintf(f2p, flen, "%.9ld", nsecs);
|
|
if (sl == -1)
|
|
sl = 0;
|
|
f2p += sl;
|
|
*f2p = '\0';
|
|
flen -= sl;
|
|
fp1 = fp2 + 2;
|
|
fpb = fp1;
|
|
}
|
|
if (fmt2 != NULL) {
|
|
o = strlen(fpb);
|
|
if (flen > o) {
|
|
memcpy(f2p, fpb, o);
|
|
f2p[o] = '\0';
|
|
}
|
|
}
|
|
|
|
(void)strftime(buf, len, fmt, &tm);
|
|
free(fmt2);
|
|
return buf;
|
|
}
|
|
|
|
/*
|
|
* Arranges output according to a single parsed format substring.
|
|
*/
|
|
static int
|
|
format1(const struct stat *st,
|
|
const char *file,
|
|
const char *fmt, int flen,
|
|
char *buf, size_t blen,
|
|
int flags, int size, int prec, int ofmt,
|
|
int hilo, int what, int quiet)
|
|
{
|
|
uint64_t data;
|
|
char *stmp, lfmt[24], tmp[20];
|
|
const char *sdata;
|
|
char smode[12], sid[13], path[PATH_MAX + 4], visbuf[PATH_MAX * 4 + 4];
|
|
struct passwd *pw;
|
|
struct group *gr;
|
|
time_t secs;
|
|
long nsecs;
|
|
int l;
|
|
int formats; /* bitmap of allowed formats for this datum */
|
|
int small; /* true if datum is a small integer */
|
|
int gottime; /* true if secs and nsecs are valid */
|
|
int shift; /* powers of 2 to scale numbers before printing */
|
|
size_t prefixlen; /* length of constant prefix for string data */
|
|
|
|
formats = 0;
|
|
small = 0;
|
|
gottime = 0;
|
|
secs = 0;
|
|
nsecs = 0;
|
|
shift = 0;
|
|
prefixlen = 0;
|
|
|
|
/*
|
|
* First, pick out the data and tweak it based on hilo or
|
|
* specified output format (symlink output only).
|
|
*/
|
|
switch (what) {
|
|
case SHOW_st_dev:
|
|
case SHOW_st_rdev:
|
|
small = (sizeof(st->st_dev) == 4);
|
|
data = (what == SHOW_st_dev) ? st->st_dev : st->st_rdev;
|
|
#if HAVE_DEVNAME
|
|
sdata = (what == SHOW_st_dev) ?
|
|
devname(st->st_dev, S_IFBLK) :
|
|
devname(st->st_rdev,
|
|
S_ISCHR(st->st_mode) ? S_IFCHR :
|
|
S_ISBLK(st->st_mode) ? S_IFBLK :
|
|
0U);
|
|
if (sdata == NULL)
|
|
sdata = "???";
|
|
#endif /* HAVE_DEVNAME */
|
|
if (hilo == HIGH_PIECE) {
|
|
data = major(data);
|
|
hilo = 0;
|
|
}
|
|
else if (hilo == LOW_PIECE) {
|
|
data = minor((unsigned)data);
|
|
hilo = 0;
|
|
}
|
|
formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
|
|
#if HAVE_DEVNAME
|
|
FMTF_STRING;
|
|
#else /* HAVE_DEVNAME */
|
|
0;
|
|
#endif /* HAVE_DEVNAME */
|
|
if (ofmt == 0) {
|
|
if (data == (uint64_t)-1)
|
|
ofmt = FMTF_DECIMAL;
|
|
else
|
|
ofmt = FMTF_UNSIGNED;
|
|
}
|
|
break;
|
|
case SHOW_st_ino:
|
|
small = (sizeof(st->st_ino) == 4);
|
|
data = st->st_ino;
|
|
sdata = NULL;
|
|
formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_UNSIGNED;
|
|
break;
|
|
case SHOW_st_mode:
|
|
small = (sizeof(st->st_mode) == 4);
|
|
data = st->st_mode;
|
|
strmode(st->st_mode, smode);
|
|
stmp = smode;
|
|
l = strlen(stmp);
|
|
if (stmp[l - 1] == ' ')
|
|
stmp[--l] = '\0';
|
|
if (hilo == HIGH_PIECE) {
|
|
data >>= 12;
|
|
stmp += 1;
|
|
stmp[3] = '\0';
|
|
hilo = 0;
|
|
}
|
|
else if (hilo == MIDDLE_PIECE) {
|
|
data = (data >> 9) & 07;
|
|
stmp += 4;
|
|
stmp[3] = '\0';
|
|
hilo = 0;
|
|
}
|
|
else if (hilo == LOW_PIECE) {
|
|
data &= 0777;
|
|
stmp += 7;
|
|
stmp[3] = '\0';
|
|
hilo = 0;
|
|
}
|
|
sdata = stmp;
|
|
formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
|
|
FMTF_STRING;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_OCTAL;
|
|
break;
|
|
case SHOW_st_nlink:
|
|
small = (sizeof(st->st_dev) == 4);
|
|
data = st->st_nlink;
|
|
sdata = NULL;
|
|
formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_UNSIGNED;
|
|
break;
|
|
case SHOW_st_uid:
|
|
small = (sizeof(st->st_uid) == 4);
|
|
data = st->st_uid;
|
|
if ((pw = getpwuid(st->st_uid)) != NULL)
|
|
sdata = pw->pw_name;
|
|
else {
|
|
snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_uid);
|
|
sdata = sid;
|
|
}
|
|
formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
|
|
FMTF_STRING;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_UNSIGNED;
|
|
break;
|
|
case SHOW_st_gid:
|
|
small = (sizeof(st->st_gid) == 4);
|
|
data = st->st_gid;
|
|
if ((gr = getgrgid(st->st_gid)) != NULL)
|
|
sdata = gr->gr_name;
|
|
else {
|
|
snprintf(sid, sizeof(sid), "(%ld)", (long)st->st_gid);
|
|
sdata = sid;
|
|
}
|
|
formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
|
|
FMTF_STRING;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_UNSIGNED;
|
|
break;
|
|
case SHOW_st_atime:
|
|
gottime = 1;
|
|
secs = st->st_atime;
|
|
#if HAVE_STRUCT_STAT_ST_MTIMENSEC
|
|
nsecs = st->st_atimensec;
|
|
#endif
|
|
/* FALLTHROUGH */
|
|
case SHOW_st_mtime:
|
|
if (!gottime) {
|
|
gottime = 1;
|
|
secs = st->st_mtime;
|
|
#if HAVE_STRUCT_STAT_ST_MTIMENSEC
|
|
nsecs = st->st_mtimensec;
|
|
#endif
|
|
}
|
|
/* FALLTHROUGH */
|
|
case SHOW_st_ctime:
|
|
if (!gottime) {
|
|
gottime = 1;
|
|
secs = st->st_ctime;
|
|
#if HAVE_STRUCT_STAT_ST_MTIMENSEC
|
|
nsecs = st->st_ctimensec;
|
|
#endif
|
|
}
|
|
#if HAVE_STRUCT_STAT_ST_BIRTHTIME
|
|
/* FALLTHROUGH */
|
|
case SHOW_st_btime:
|
|
if (!gottime) {
|
|
gottime = 1;
|
|
secs = st->st_birthtime;
|
|
#if HAVE_STRUCT_STAT_ST_BIRTHTIMENSEC
|
|
nsecs = st->st_birthtimensec;
|
|
#endif /* HAVE_STRUCT_STAT_ST_BIRTHTIMENSEC */
|
|
}
|
|
#endif /* HAVE_STRUCT_STAT_ST_BIRTHTIME */
|
|
small = (sizeof(secs) == 4);
|
|
data = secs;
|
|
sdata = fmttime(path, sizeof(path), timefmt, secs, nsecs);
|
|
|
|
formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX |
|
|
FMTF_FLOAT | FMTF_STRING;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_DECIMAL;
|
|
break;
|
|
case SHOW_st_size:
|
|
small = (sizeof(st->st_size) == 4);
|
|
data = st->st_size;
|
|
sdata = NULL;
|
|
formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_UNSIGNED;
|
|
switch (hilo) {
|
|
case HIGH_PIECE:
|
|
shift = 30; /* gigabytes */
|
|
hilo = 0;
|
|
break;
|
|
case MIDDLE_PIECE:
|
|
shift = 20; /* megabytes */
|
|
hilo = 0;
|
|
break;
|
|
case LOW_PIECE:
|
|
shift = 10; /* kilobytes */
|
|
hilo = 0;
|
|
break;
|
|
}
|
|
break;
|
|
case SHOW_st_blocks:
|
|
small = (sizeof(st->st_blocks) == 4);
|
|
data = st->st_blocks;
|
|
sdata = NULL;
|
|
formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_UNSIGNED;
|
|
break;
|
|
case SHOW_st_blksize:
|
|
small = (sizeof(st->st_blksize) == 4);
|
|
data = st->st_blksize;
|
|
sdata = NULL;
|
|
formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_UNSIGNED;
|
|
break;
|
|
#if HAVE_STRUCT_STAT_ST_FLAGS
|
|
case SHOW_st_flags:
|
|
small = (sizeof(st->st_flags) == 4);
|
|
data = st->st_flags;
|
|
formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
|
|
#if !HAVE_NBTOOL_CONFIG_H
|
|
sdata = flags_to_string((u_long)st->st_flags, "-");
|
|
formats |= FMT_STRING;
|
|
#endif
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_UNSIGNED;
|
|
break;
|
|
#endif /* HAVE_STRUCT_STAT_ST_FLAGS */
|
|
#if HAVE_STRUCT_STAT_ST_GEN
|
|
case SHOW_st_gen:
|
|
small = (sizeof(st->st_gen) == 4);
|
|
data = st->st_gen;
|
|
sdata = NULL;
|
|
formats = FMTF_DECIMAL | FMTF_OCTAL | FMTF_UNSIGNED | FMTF_HEX;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_UNSIGNED;
|
|
break;
|
|
#endif /* HAVE_STRUCT_STAT_ST_GEN */
|
|
case SHOW_realpath:
|
|
small = 0;
|
|
data = 0;
|
|
if (file == NULL) {
|
|
(void)strlcpy(path, "(stdin)", sizeof(path));
|
|
sdata = path;
|
|
} else {
|
|
snprintf(path, sizeof(path), " -> ");
|
|
if (realpath(file, path + 4) == NULL) {
|
|
if (!quiet)
|
|
warn("realpath `%s'", file);
|
|
linkfail = 1;
|
|
l = 0;
|
|
path[0] = '\0';
|
|
}
|
|
sdata = path + (ofmt == FMTF_STRING ? 0 : 4);
|
|
prefixlen = (ofmt == FMTF_STRING ? 4 : 0);
|
|
}
|
|
|
|
formats = FMTF_STRING;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_STRING;
|
|
break;
|
|
case SHOW_symlink:
|
|
small = 0;
|
|
data = 0;
|
|
if (S_ISLNK(st->st_mode)) {
|
|
snprintf(path, sizeof(path), " -> ");
|
|
l = readlink(file, path + 4, sizeof(path) - 4 - 1);
|
|
if (l == -1) {
|
|
if (!quiet)
|
|
warn("readlink `%s'", file);
|
|
linkfail = 1;
|
|
l = 0;
|
|
path[0] = '\0';
|
|
}
|
|
path[l + 4] = '\0';
|
|
sdata = path + (ofmt == FMTF_STRING ? 0 : 4);
|
|
prefixlen = (ofmt == FMTF_STRING ? 4 : 0);
|
|
}
|
|
else {
|
|
linkfail = 1;
|
|
sdata = "";
|
|
}
|
|
formats = FMTF_STRING;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_STRING;
|
|
break;
|
|
case SHOW_filetype:
|
|
small = 0;
|
|
data = 0;
|
|
sdata = "";
|
|
if (hilo == 0 || hilo == LOW_PIECE) {
|
|
switch (st->st_mode & S_IFMT) {
|
|
case S_IFIFO: sdata = "|"; break;
|
|
case S_IFDIR: sdata = "/"; break;
|
|
case S_IFREG:
|
|
if (st->st_mode &
|
|
(S_IXUSR | S_IXGRP | S_IXOTH))
|
|
sdata = "*";
|
|
break;
|
|
case S_IFLNK: sdata = "@"; break;
|
|
#ifdef S_IFSOCK
|
|
case S_IFSOCK: sdata = "="; break;
|
|
#endif
|
|
#ifdef S_IFWHT
|
|
case S_IFWHT: sdata = "%"; break;
|
|
#endif /* S_IFWHT */
|
|
#ifdef S_IFDOOR
|
|
case S_IFDOOR: sdata = ">"; break;
|
|
#endif /* S_IFDOOR */
|
|
}
|
|
hilo = 0;
|
|
}
|
|
else if (hilo == HIGH_PIECE) {
|
|
switch (st->st_mode & S_IFMT) {
|
|
case S_IFIFO: sdata = "Fifo File"; break;
|
|
case S_IFCHR: sdata = "Character Device"; break;
|
|
case S_IFDIR: sdata = "Directory"; break;
|
|
case S_IFBLK: sdata = "Block Device"; break;
|
|
case S_IFREG: sdata = "Regular File"; break;
|
|
case S_IFLNK: sdata = "Symbolic Link"; break;
|
|
#ifdef S_IFSOCK
|
|
case S_IFSOCK: sdata = "Socket"; break;
|
|
#endif
|
|
#ifdef S_IFWHT
|
|
case S_IFWHT: sdata = "Whiteout File"; break;
|
|
#endif /* S_IFWHT */
|
|
#ifdef S_IFDOOR
|
|
case S_IFDOOR: sdata = "Door"; break;
|
|
#endif /* S_IFDOOR */
|
|
default: sdata = "???"; break;
|
|
}
|
|
hilo = 0;
|
|
}
|
|
formats = FMTF_STRING;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_STRING;
|
|
break;
|
|
case SHOW_filename:
|
|
small = 0;
|
|
data = 0;
|
|
if (file == NULL) {
|
|
(void)strlcpy(path, "(stdin)", sizeof(path));
|
|
if (hilo == HIGH_PIECE || hilo == LOW_PIECE)
|
|
hilo = 0;
|
|
}
|
|
else if (hilo == 0)
|
|
(void)strlcpy(path, file, sizeof(path));
|
|
else {
|
|
char *s;
|
|
(void)strlcpy(path, file, sizeof(path));
|
|
s = strrchr(path, '/');
|
|
if (s != NULL) {
|
|
/* trim off trailing /'s */
|
|
while (s != path &&
|
|
s[0] == '/' && s[1] == '\0')
|
|
*s-- = '\0';
|
|
s = strrchr(path, '/');
|
|
}
|
|
if (hilo == HIGH_PIECE) {
|
|
if (s == NULL)
|
|
(void)strlcpy(path, ".", sizeof(path));
|
|
else {
|
|
while (s != path && s[0] == '/')
|
|
*s-- = '\0';
|
|
}
|
|
hilo = 0;
|
|
}
|
|
else if (hilo == LOW_PIECE) {
|
|
if (s != NULL && s[1] != '\0')
|
|
(void)strlcpy(path, s + 1,
|
|
sizeof(path));
|
|
hilo = 0;
|
|
}
|
|
}
|
|
sdata = path;
|
|
formats = FMTF_STRING;
|
|
if (ofmt == 0)
|
|
ofmt = FMTF_STRING;
|
|
break;
|
|
case SHOW_sizerdev:
|
|
if (S_ISCHR(st->st_mode) || S_ISBLK(st->st_mode)) {
|
|
char majdev[20], mindev[20];
|
|
int l1, l2;
|
|
|
|
if (size == 0) /* avoid -1/2 */
|
|
size++; /* 1/2 == 0/2 so this is safe */
|
|
l1 = format1(st,
|
|
file,
|
|
fmt, flen,
|
|
majdev, sizeof(majdev),
|
|
flags, (size - 1) / 2, prec,
|
|
ofmt, HIGH_PIECE, SHOW_st_rdev, quiet);
|
|
l2 = format1(st,
|
|
file,
|
|
fmt, flen,
|
|
mindev, sizeof(mindev),
|
|
flags | FLAG_MINUS , size / 2, prec,
|
|
ofmt, LOW_PIECE, SHOW_st_rdev, quiet);
|
|
return (snprintf(buf, blen, "%.*s,%.*s",
|
|
l1, majdev, l2, mindev));
|
|
}
|
|
else {
|
|
return (format1(st,
|
|
file,
|
|
fmt, flen,
|
|
buf, blen,
|
|
flags, size, prec,
|
|
ofmt, 0, SHOW_st_size, quiet));
|
|
}
|
|
/*NOTREACHED*/
|
|
default:
|
|
errx(1, "%.*s: bad format", (int)flen, fmt);
|
|
}
|
|
|
|
if (hilo != 0 // subdatum not supported
|
|
|| !(ofmt & formats) // output format not supported
|
|
|| (ofmt == FMTF_STRING && flags & FLAG_SPACE)
|
|
|| (ofmt == FMTF_STRING && flags & FLAG_PLUS)
|
|
|| (ofmt == FMTF_STRING && flags & FLAG_ZERO))
|
|
errx(1, "%.*s: bad format", (int)flen, fmt);
|
|
|
|
/*
|
|
* FLAG_POUND with FMTF_STRING means use vis(3) encoding.
|
|
* First prefixlen chars are not encoded.
|
|
*/
|
|
if ((flags & FLAG_POUND) != 0 && ofmt == FMTF_STRING) {
|
|
flags &= ~FLAG_POUND;
|
|
strncpy(visbuf, sdata, prefixlen);
|
|
/* Avoid GCC warnings. */
|
|
visbuf[prefixlen] = 0;
|
|
strnvis(visbuf + prefixlen, sizeof(visbuf) - prefixlen,
|
|
sdata + prefixlen, VIS_WHITE | VIS_OCTAL | VIS_CSTYLE);
|
|
sdata = visbuf;
|
|
}
|
|
|
|
/*
|
|
* Assemble the format string for passing to printf(3).
|
|
*/
|
|
lfmt[0] = '\0';
|
|
(void)strcat(lfmt, "%");
|
|
if (flags & FLAG_POUND)
|
|
(void)strcat(lfmt, "#");
|
|
if (flags & FLAG_SPACE)
|
|
(void)strcat(lfmt, " ");
|
|
if (flags & FLAG_PLUS)
|
|
(void)strcat(lfmt, "+");
|
|
if (flags & FLAG_MINUS)
|
|
(void)strcat(lfmt, "-");
|
|
if (flags & FLAG_ZERO)
|
|
(void)strcat(lfmt, "0");
|
|
|
|
/*
|
|
* Only the timespecs support the FLOAT output format, and that
|
|
* requires work that differs from the other formats.
|
|
*/
|
|
if (ofmt == FMTF_FLOAT) {
|
|
/*
|
|
* Nothing after the decimal point, so just print seconds.
|
|
*/
|
|
if (prec == 0) {
|
|
if (size != -1) {
|
|
(void)snprintf(tmp, sizeof(tmp), "%d", size);
|
|
(void)strcat(lfmt, tmp);
|
|
}
|
|
(void)strcat(lfmt, "lld");
|
|
return (snprintf(buf, blen, lfmt,
|
|
(long long)secs));
|
|
}
|
|
|
|
/*
|
|
* Unspecified precision gets all the precision we have:
|
|
* 9 digits.
|
|
*/
|
|
if (prec == -1)
|
|
prec = 9;
|
|
|
|
/*
|
|
* Adjust the size for the decimal point and the digits
|
|
* that will follow.
|
|
*/
|
|
size -= prec + 1;
|
|
|
|
/*
|
|
* Any leftover size that's legitimate will be used.
|
|
*/
|
|
if (size > 0) {
|
|
(void)snprintf(tmp, sizeof(tmp), "%d", size);
|
|
(void)strcat(lfmt, tmp);
|
|
}
|
|
/* Seconds: time_t cast to long long. */
|
|
(void)strcat(lfmt, "lld");
|
|
|
|
/*
|
|
* The stuff after the decimal point always needs zero
|
|
* filling.
|
|
*/
|
|
(void)strcat(lfmt, ".%0");
|
|
|
|
/*
|
|
* We can "print" at most nine digits of precision. The
|
|
* rest we will pad on at the end.
|
|
*
|
|
* Nanoseconds: long.
|
|
*/
|
|
(void)snprintf(tmp, sizeof(tmp), "%dld", prec > 9 ? 9 : prec);
|
|
(void)strcat(lfmt, tmp);
|
|
|
|
/*
|
|
* For precision of less that nine digits, trim off the
|
|
* less significant figures.
|
|
*/
|
|
for (; prec < 9; prec++)
|
|
nsecs /= 10;
|
|
|
|
/*
|
|
* Use the format, and then tack on any zeroes that
|
|
* might be required to make up the requested precision.
|
|
*/
|
|
l = snprintf(buf, blen, lfmt, (long long)secs, nsecs);
|
|
for (; prec > 9 && l < (int)blen; prec--, l++)
|
|
(void)strcat(buf, "0");
|
|
return (l);
|
|
}
|
|
|
|
/*
|
|
* Add on size and precision, if specified, to the format.
|
|
*/
|
|
if (size != -1) {
|
|
(void)snprintf(tmp, sizeof(tmp), "%d", size);
|
|
(void)strcat(lfmt, tmp);
|
|
}
|
|
if (prec != -1) {
|
|
(void)snprintf(tmp, sizeof(tmp), ".%d", prec);
|
|
(void)strcat(lfmt, tmp);
|
|
}
|
|
|
|
/*
|
|
* String output uses the temporary sdata.
|
|
*/
|
|
if (ofmt == FMTF_STRING) {
|
|
if (sdata == NULL)
|
|
errx(1, "%.*s: bad format", (int)flen, fmt);
|
|
(void)strcat(lfmt, "s");
|
|
return (snprintf(buf, blen, lfmt, sdata));
|
|
}
|
|
|
|
/*
|
|
* Ensure that sign extension does not cause bad looking output
|
|
* for some forms.
|
|
*/
|
|
if (small && ofmt != FMTF_DECIMAL)
|
|
data = (uint32_t)data;
|
|
|
|
/*
|
|
* The four "numeric" output forms.
|
|
*/
|
|
(void)strcat(lfmt, "ll");
|
|
switch (ofmt) {
|
|
case FMTF_DECIMAL: (void)strcat(lfmt, "d"); break;
|
|
case FMTF_OCTAL: (void)strcat(lfmt, "o"); break;
|
|
case FMTF_UNSIGNED: (void)strcat(lfmt, "u"); break;
|
|
case FMTF_HEX: (void)strcat(lfmt, "x"); break;
|
|
}
|
|
|
|
/*
|
|
* shift and round to nearest for kilobytes, megabytes,
|
|
* gigabytes.
|
|
*/
|
|
if (shift > 0) {
|
|
data >>= (shift - 1);
|
|
data++;
|
|
data >>= 1;
|
|
}
|
|
|
|
return (snprintf(buf, blen, lfmt, data));
|
|
}
|