2005-04-23 11:56:38 +05:30
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/*
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* stat -- display file or file system status
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*
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* Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation.
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* Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org>
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* Copyright (C) 2005 by Mike Frysinger <vapier@gentoo.org>
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*
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* Written by Michael Meskes
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* Taken from coreutils and turned into a busybox applet by Mike Frysinger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <pwd.h>
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#include <grp.h>
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#include <sys/vfs.h>
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#include <time.h>
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2005-09-11 06:35:30 +05:30
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#include <getopt.h> /* optind */
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2005-04-23 11:56:38 +05:30
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#include <sys/stat.h>
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2005-06-29 06:37:04 +05:30
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#include <sys/statfs.h>
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#include <sys/statvfs.h>
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2005-04-23 11:56:38 +05:30
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#include <string.h>
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#include "busybox.h"
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/* vars to control behavior */
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2005-04-24 09:23:12 +05:30
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#define OPT_TERSE 2
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#define OPT_DEREFERNCE 4
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static long flags;
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2005-04-23 11:56:38 +05:30
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static char const *file_type(struct stat const *st)
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{
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2006-01-25 05:38:53 +05:30
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/* See POSIX 1003.1-2001 XCU Table 4-8 lines 17093-17107
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2005-04-23 11:56:38 +05:30
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* for some of these formats.
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2006-01-25 05:38:53 +05:30
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* To keep diagnostics grammatical in English, the
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2005-04-23 11:56:38 +05:30
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* returned string must start with a consonant.
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*/
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if (S_ISREG(st->st_mode)) return st->st_size == 0 ? "regular empty file" : "regular file";
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if (S_ISDIR(st->st_mode)) return "directory";
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if (S_ISBLK(st->st_mode)) return "block special file";
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if (S_ISCHR(st->st_mode)) return "character special file";
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if (S_ISFIFO(st->st_mode)) return "fifo";
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if (S_ISLNK(st->st_mode)) return "symbolic link";
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if (S_ISSOCK(st->st_mode)) return "socket";
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if (S_TYPEISMQ(st)) return "message queue";
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if (S_TYPEISSEM(st)) return "semaphore";
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if (S_TYPEISSHM(st)) return "shared memory object";
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#ifdef S_TYPEISTMO
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if (S_TYPEISTMO(st)) return "typed memory object";
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#endif
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return "weird file";
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}
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static char const *human_time(time_t t)
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{
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static char *str;
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str = ctime(&t);
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str[strlen(str)-1] = '\0';
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return str;
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}
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/* Return the type of the specified file system.
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* Some systems have statfvs.f_basetype[FSTYPSZ]. (AIX, HP-UX, and Solaris)
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* Others have statfs.f_fstypename[MFSNAMELEN]. (NetBSD 1.5.2)
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* Still others have neither and have to get by with f_type (Linux).
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*/
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static char const *human_fstype(long f_type)
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{
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2005-04-24 09:41:44 +05:30
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int i;
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2005-10-20 16:47:48 +05:30
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static const struct types {
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2005-04-24 09:41:44 +05:30
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long type;
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2005-10-20 16:47:48 +05:30
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const char *fs;
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2005-04-24 09:41:44 +05:30
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} humantypes[] = {
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{ 0xADFF, "affs" },
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{ 0x1Cd1, "devpts" },
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{ 0x137D, "ext" },
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{ 0xEF51, "ext2" },
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{ 0xEF53, "ext2/ext3" },
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{ 0x3153464a, "jfs" },
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{ 0x58465342, "xfs" },
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{ 0xF995E849, "hpfs" },
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{ 0x9660, "isofs" },
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{ 0x4000, "isofs" },
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{ 0x4004, "isofs" },
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{ 0x137F, "minix" },
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{ 0x138F, "minix (30 char.)" },
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{ 0x2468, "minix v2" },
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{ 0x2478, "minix v2 (30 char.)" },
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{ 0x4d44, "msdos" },
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{ 0x4006, "fat" },
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{ 0x564c, "novell" },
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{ 0x6969, "nfs" },
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{ 0x9fa0, "proc" },
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{ 0x517B, "smb" },
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{ 0x012FF7B4, "xenix" },
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{ 0x012FF7B5, "sysv4" },
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{ 0x012FF7B6, "sysv2" },
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{ 0x012FF7B7, "coh" },
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{ 0x00011954, "ufs" },
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{ 0x012FD16D, "xia" },
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{ 0x5346544e, "ntfs" },
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{ 0x1021994, "tmpfs" },
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{ 0x52654973, "reiserfs" },
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{ 0x28cd3d45, "cramfs" },
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{ 0x7275, "romfs" },
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{ 0x858458f6, "romfs" },
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{ 0x73717368, "squashfs" },
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{ 0x62656572, "sysfs" },
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2006-02-22 22:31:00 +05:30
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{ 0, "UNKNOWN" }
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2005-04-24 09:41:44 +05:30
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};
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for (i=0; humantypes[i].type; ++i)
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if (humantypes[i].type == f_type)
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2006-02-22 22:31:00 +05:30
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break;
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2005-04-24 09:41:44 +05:30
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return humantypes[i].fs;
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2005-04-23 11:56:38 +05:30
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}
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#ifdef CONFIG_FEATURE_STAT_FORMAT
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/* print statfs info */
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2006-01-25 05:38:53 +05:30
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static void print_statfs(char *pformat, size_t buf_len, char m,
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char const *filename, void const *data)
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2005-04-23 11:56:38 +05:30
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{
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struct statfs const *statfsbuf = data;
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switch (m) {
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case 'n':
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strncat(pformat, "s", buf_len);
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printf(pformat, filename);
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break;
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case 'i':
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strncat(pformat, "Lx", buf_len);
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printf(pformat, statfsbuf->f_fsid);
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break;
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case 'l':
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strncat(pformat, "lu", buf_len);
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printf(pformat, statfsbuf->f_namelen);
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break;
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case 't':
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strncat(pformat, "lx", buf_len);
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printf(pformat, (unsigned long int) (statfsbuf->f_type)); /* no equiv. */
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break;
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case 'T':
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strncat(pformat, "s", buf_len);
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printf(pformat, human_fstype(statfsbuf->f_type));
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break;
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case 'b':
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strncat(pformat, "ld", buf_len);
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printf(pformat, (intmax_t) (statfsbuf->f_blocks));
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break;
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case 'f':
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strncat(pformat, "ld", buf_len);
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printf(pformat, (intmax_t) (statfsbuf->f_bfree));
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break;
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case 'a':
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strncat(pformat, "ld", buf_len);
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printf(pformat, (intmax_t) (statfsbuf->f_bavail));
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break;
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2005-07-27 04:09:56 +05:30
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case 'S':
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2005-04-23 11:56:38 +05:30
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case 's':
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strncat(pformat, "lu", buf_len);
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printf(pformat, (unsigned long int) (statfsbuf->f_bsize));
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break;
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case 'c':
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strncat(pformat, "ld", buf_len);
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printf(pformat, (intmax_t) (statfsbuf->f_files));
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break;
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case 'd':
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strncat(pformat, "ld", buf_len);
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printf(pformat, (intmax_t) (statfsbuf->f_ffree));
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break;
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default:
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strncat(pformat, "c", buf_len);
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printf(pformat, m);
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break;
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}
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}
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/* print stat info */
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2006-01-25 05:38:53 +05:30
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static void print_stat(char *pformat, size_t buf_len, char m,
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char const *filename, void const *data)
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2005-04-23 11:56:38 +05:30
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{
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#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
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struct stat *statbuf = (struct stat *) data;
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struct passwd *pw_ent;
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struct group *gw_ent;
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switch (m) {
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case 'n':
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strncat(pformat, "s", buf_len);
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printf(pformat, filename);
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break;
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case 'N':
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strncat(pformat, "s", buf_len);
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if (S_ISLNK(statbuf->st_mode)) {
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char *linkname = xreadlink(filename);
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if (linkname == NULL) {
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bb_perror_msg("cannot read symbolic link '%s'", filename);
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return;
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}
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/*printf("\"%s\" -> \"%s\"", filename, linkname); */
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printf(pformat, filename);
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printf(" -> ");
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printf(pformat, linkname);
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} else {
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printf(pformat, filename);
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}
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break;
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case 'd':
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strncat(pformat, "lu", buf_len);
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printf(pformat, (uintmax_t) statbuf->st_dev);
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break;
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case 'D':
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strncat(pformat, "lx", buf_len);
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printf(pformat, (uintmax_t) statbuf->st_dev);
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break;
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case 'i':
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strncat(pformat, "lu", buf_len);
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printf(pformat, (uintmax_t) statbuf->st_ino);
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break;
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case 'a':
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strncat(pformat, "lo", buf_len);
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printf(pformat, (unsigned long int) (statbuf->st_mode & (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)));
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break;
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case 'A':
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strncat(pformat, "s", buf_len);
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printf(pformat, bb_mode_string(statbuf->st_mode));
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break;
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case 'f':
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strncat(pformat, "lx", buf_len);
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printf(pformat, (unsigned long int) statbuf->st_mode);
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break;
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case 'F':
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strncat(pformat, "s", buf_len);
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printf(pformat, file_type(statbuf));
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break;
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case 'h':
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strncat(pformat, "lu", buf_len);
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printf(pformat, (unsigned long int) statbuf->st_nlink);
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break;
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case 'u':
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strncat(pformat, "lu", buf_len);
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printf(pformat, (unsigned long int) statbuf->st_uid);
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break;
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case 'U':
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strncat(pformat, "s", buf_len);
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setpwent();
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pw_ent = getpwuid(statbuf->st_uid);
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printf(pformat, (pw_ent != 0L) ? pw_ent->pw_name : "UNKNOWN");
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break;
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case 'g':
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strncat(pformat, "lu", buf_len);
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printf(pformat, (unsigned long int) statbuf->st_gid);
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break;
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case 'G':
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strncat(pformat, "s", buf_len);
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setgrent();
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gw_ent = getgrgid(statbuf->st_gid);
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printf(pformat, (gw_ent != 0L) ? gw_ent->gr_name : "UNKNOWN");
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break;
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case 't':
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strncat(pformat, "lx", buf_len);
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printf(pformat, (unsigned long int) major(statbuf->st_rdev));
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break;
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case 'T':
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strncat(pformat, "lx", buf_len);
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printf(pformat, (unsigned long int) minor(statbuf->st_rdev));
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break;
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case 's':
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strncat(pformat, "lu", buf_len);
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printf(pformat, (uintmax_t) (statbuf->st_size));
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break;
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case 'B':
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strncat(pformat, "lu", buf_len);
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printf(pformat, (unsigned long int) 512); //ST_NBLOCKSIZE
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break;
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case 'b':
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strncat(pformat, "lu", buf_len);
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printf(pformat, (uintmax_t) statbuf->st_blocks);
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break;
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case 'o':
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strncat(pformat, "lu", buf_len);
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printf(pformat, (unsigned long int) statbuf->st_blksize);
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break;
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case 'x':
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strncat(pformat, "s", buf_len);
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printf(pformat, human_time(statbuf->st_atime));
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break;
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case 'X':
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strncat(pformat, TYPE_SIGNED(time_t) ? "ld" : "lu", buf_len);
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printf(pformat, (unsigned long int) statbuf->st_atime);
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break;
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case 'y':
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strncat(pformat, "s", buf_len);
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printf(pformat, human_time(statbuf->st_mtime));
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break;
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case 'Y':
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strncat(pformat, TYPE_SIGNED(time_t) ? "ld" : "lu", buf_len);
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printf(pformat, (unsigned long int) statbuf->st_mtime);
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break;
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case 'z':
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strncat(pformat, "s", buf_len);
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printf(pformat, human_time(statbuf->st_ctime));
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break;
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case 'Z':
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strncat(pformat, TYPE_SIGNED(time_t) ? "ld" : "lu", buf_len);
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printf(pformat, (unsigned long int) statbuf->st_ctime);
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break;
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default:
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strncat(pformat, "c", buf_len);
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printf(pformat, m);
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break;
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}
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}
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2006-01-25 05:38:53 +05:30
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static void print_it(char const *masterformat, char const *filename,
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void (*print_func) (char *, size_t, char, char const *, void const *),
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void const *data)
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2005-04-23 11:56:38 +05:30
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{
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char *b;
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/* create a working copy of the format string */
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char *format = bb_xstrdup(masterformat);
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/* Add 2 to accommodate our conversion of the stat `%s' format string
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* to the printf `%llu' one. */
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size_t n_alloc = strlen(format) + 2 + 1;
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char *dest = xmalloc(n_alloc);
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b = format;
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while (b) {
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char *p = strchr(b, '%');
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if (p != NULL) {
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size_t len;
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*p++ = '\0';
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fputs(b, stdout);
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len = strspn(p, "#-+.I 0123456789");
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dest[0] = '%';
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memcpy(dest + 1, p, len);
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dest[1 + len] = 0;
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p += len;
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b = p + 1;
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switch (*p) {
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case '\0':
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b = NULL;
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/* fall through */
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case '%':
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putchar('%');
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break;
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default:
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print_func(dest, n_alloc, *p, filename, data);
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break;
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}
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} else {
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fputs(b, stdout);
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b = NULL;
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}
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}
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free(format);
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free(dest);
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}
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#endif
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/* Stat the file system and print what we find. */
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static int do_statfs(char const *filename, char const *format)
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{
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struct statfs statfsbuf;
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if (statfs(filename, &statfsbuf) != 0) {
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bb_perror_msg("cannot read file system information for '%s'", filename);
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return 0;
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}
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#ifdef CONFIG_FEATURE_STAT_FORMAT
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if (format == NULL)
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2005-04-24 09:23:12 +05:30
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format = (flags & OPT_TERSE
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2005-07-27 04:09:56 +05:30
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? "%n %i %l %t %s %b %f %a %c %d\n"
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2005-04-23 11:56:38 +05:30
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: " File: \"%n\"\n"
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" ID: %-8i Namelen: %-7l Type: %T\n"
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2005-07-27 04:09:56 +05:30
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"Block size: %-10s\n"
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2005-04-23 11:56:38 +05:30
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"Blocks: Total: %-10b Free: %-10f Available: %a\n"
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"Inodes: Total: %-10c Free: %d\n");
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print_it(format, filename, print_statfs, &statfsbuf);
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#else
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2005-04-24 09:23:12 +05:30
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format = (flags & OPT_TERSE
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2005-04-23 11:56:38 +05:30
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? "%s %Lx %lu "
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: " File: \"%s\"\n"
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" ID: %-8Lx Namelen: %-7lu ");
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printf(format,
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filename,
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statfsbuf.f_fsid,
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statfsbuf.f_namelen);
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2005-04-24 09:23:12 +05:30
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if (flags & OPT_TERSE)
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2005-04-23 11:56:38 +05:30
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printf("%lx ", (unsigned long int) (statfsbuf.f_type));
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else
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printf("Type: %s\n", human_fstype(statfsbuf.f_type));
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2005-04-24 09:23:12 +05:30
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format = (flags & OPT_TERSE
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2005-07-27 04:09:56 +05:30
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? "%lu %ld %ld %ld %ld %ld\n"
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: "Block size: %-10lu\n"
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2005-04-23 11:56:38 +05:30
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"Blocks: Total: %-10ld Free: %-10ld Available: %ld\n"
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"Inodes: Total: %-10ld Free: %ld\n");
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printf(format,
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(unsigned long int) (statfsbuf.f_bsize),
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(intmax_t) (statfsbuf.f_blocks),
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(intmax_t) (statfsbuf.f_bfree),
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(intmax_t) (statfsbuf.f_bavail),
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(intmax_t) (statfsbuf.f_files),
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(intmax_t) (statfsbuf.f_ffree));
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#endif
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return 1;
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}
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/* stat the file and print what we find */
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static int do_stat(char const *filename, char const *format)
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{
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struct stat statbuf;
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2005-04-24 09:23:12 +05:30
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if ((flags & OPT_DEREFERNCE ? stat : lstat) (filename, &statbuf) != 0) {
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2005-04-23 11:56:38 +05:30
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bb_perror_msg("cannot stat '%s'", filename);
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return 0;
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}
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#ifdef CONFIG_FEATURE_STAT_FORMAT
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if (format == NULL) {
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2005-04-24 09:23:12 +05:30
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if (flags & OPT_TERSE) {
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2005-04-23 11:56:38 +05:30
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format = "%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o\n";
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} else {
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if (S_ISBLK(statbuf.st_mode) || S_ISCHR(statbuf.st_mode)) {
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format =
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" File: \"%N\"\n"
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" Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
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"Device: %Dh/%dd\tInode: %-10i Links: %-5h"
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" Device type: %t,%T\n"
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"Access: (%04a/%10.10A) Uid: (%5u/%8U) Gid: (%5g/%8G)\n"
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"Access: %x\n" "Modify: %y\n" "Change: %z\n";
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} else {
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format =
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" File: \"%N\"\n"
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" Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n"
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"Device: %Dh/%dd\tInode: %-10i Links: %h\n"
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"Access: (%04a/%10.10A) Uid: (%5u/%8U) Gid: (%5g/%8G)\n"
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"Access: %x\n" "Modify: %y\n" "Change: %z\n";
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}
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}
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}
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print_it(format, filename, print_stat, &statbuf);
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#else
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2005-04-24 09:23:12 +05:30
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if (flags & OPT_TERSE) {
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2005-04-23 11:56:38 +05:30
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printf("%s %lu %lu %lx %lu %lu %lx %lu %lu %lx %lx %lu %lu %lu %lu\n",
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filename,
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(uintmax_t) (statbuf.st_size),
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(uintmax_t) statbuf.st_blocks,
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(unsigned long int) statbuf.st_mode,
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(unsigned long int) statbuf.st_uid,
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(unsigned long int) statbuf.st_gid,
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(uintmax_t) statbuf.st_dev,
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(uintmax_t) statbuf.st_ino,
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(unsigned long int) statbuf.st_nlink,
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(unsigned long int) major(statbuf.st_rdev),
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(unsigned long int) minor(statbuf.st_rdev),
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(unsigned long int) statbuf.st_atime,
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(unsigned long int) statbuf.st_mtime,
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(unsigned long int) statbuf.st_ctime,
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(unsigned long int) statbuf.st_blksize
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);
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} else {
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char *linkname = NULL;
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struct passwd *pw_ent;
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struct group *gw_ent;
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setgrent();
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gw_ent = getgrgid(statbuf.st_gid);
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setpwent();
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pw_ent = getpwuid(statbuf.st_uid);
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if (S_ISLNK(statbuf.st_mode))
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linkname = xreadlink(filename);
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if (linkname)
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printf(" File: \"%s\" -> \"%s\"\n", filename, linkname);
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else
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printf(" File: \"%s\"\n", filename);
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printf(" Size: %-10lu\tBlocks: %-10lu IO Block: %-6lu %s\n"
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"Device: %lxh/%lud\tInode: %-10lu Links: %-5lu",
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(uintmax_t) (statbuf.st_size),
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(uintmax_t) statbuf.st_blocks,
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(unsigned long int) statbuf.st_blksize,
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file_type(&statbuf),
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(uintmax_t) statbuf.st_dev,
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(uintmax_t) statbuf.st_dev,
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(uintmax_t) statbuf.st_ino,
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(unsigned long int) statbuf.st_nlink);
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if (S_ISBLK(statbuf.st_mode) || S_ISCHR(statbuf.st_mode))
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printf(" Device type: %lx,%lx\n",
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(unsigned long int) major(statbuf.st_rdev),
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(unsigned long int) minor(statbuf.st_rdev));
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else
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putchar('\n');
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printf("Access: (%04lo/%10.10s) Uid: (%5lu/%8s) Gid: (%5lu/%8s)\n"
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"Access: %s\n" "Modify: %s\n" "Change: %s\n",
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(unsigned long int) (statbuf.st_mode & (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO)),
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bb_mode_string(statbuf.st_mode),
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(unsigned long int) statbuf.st_uid,
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(pw_ent != 0L) ? pw_ent->pw_name : "UNKNOWN",
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(unsigned long int) statbuf.st_gid,
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(gw_ent != 0L) ? gw_ent->gr_name : "UNKNOWN",
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human_time(statbuf.st_atime),
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human_time(statbuf.st_mtime),
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human_time(statbuf.st_ctime));
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}
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#endif
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return 1;
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}
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int stat_main(int argc, char **argv)
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{
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int i;
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char *format = NULL;
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int ok = 1;
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int (*statfunc)(char const *, char const *) = do_stat;
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|
2005-04-24 09:23:12 +05:30
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flags = bb_getopt_ulflags(argc, argv, "ftL"
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2005-04-23 11:56:38 +05:30
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#ifdef CONFIG_FEATURE_STAT_FORMAT
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"c:", &format
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#endif
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);
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if (flags & 1) /* -f */
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statfunc = do_statfs;
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if (argc == optind) /* files */
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bb_show_usage();
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for (i = optind; i < argc; ++i)
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ok &= statfunc(argv[i], format);
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return (ok ? EXIT_SUCCESS : EXIT_FAILURE);
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}
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