diff options
Diffstat (limited to 'release/src/router/busybox/coreutils/chown.c')
| -rw-r--r-- | release/src/router/busybox/coreutils/chown.c | 229 |
1 files changed, 146 insertions, 83 deletions
diff --git a/release/src/router/busybox/coreutils/chown.c b/release/src/router/busybox/coreutils/chown.c index 7b9ea917..34524926 100644 --- a/release/src/router/busybox/coreutils/chown.c +++ b/release/src/router/busybox/coreutils/chown.c @@ -2,105 +2,114 @@ /* * Mini chown implementation for busybox * - * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> * + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ -/* BB_AUDIT SUSv3 defects - unsupported options -h, -H, -L, and -P. */ -/* BB_AUDIT GNU defects - unsupported options -h, -c, -f, -v, and long options. */ -/* BB_AUDIT Note: gnu chown does not support -H, -L, or -P. */ +/* BB_AUDIT SUSv3 defects - none? */ +/* BB_AUDIT GNU defects - unsupported long options. */ /* http://www.opengroup.org/onlinepubs/007904975/utilities/chown.html */ -#include <stdlib.h> -#include <unistd.h> -#include <string.h> -#include "busybox.h" - -/* Don't use lchown for glibc older then 2.1.x */ -#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1) -#define lchown chown -#endif - -static long uid; -static long gid; - -static int (*chown_func)(const char *, uid_t, gid_t) = chown; - -static int fileAction(const char *fileName, struct stat *statbuf, void* junk) -{ - if (chown_func(fileName, uid, (gid == -1) ? statbuf->st_gid : gid) == 0) { - return (TRUE); - } - bb_perror_msg("%s", fileName); /* Avoid multibyte problems. */ - return (FALSE); -} - -#define FLAG_R 1 -#define FLAG_h 2 - -static unsigned long get_ug_id(const char *s, long (*my_getxxnam)(const char *)) +#include "libbb.h" + +/* This is a NOEXEC applet. Be very careful! */ + + +#define OPT_STR ("Rh" USE_DESKTOP("vcfLHP")) +#define BIT_RECURSE 1 +#define OPT_RECURSE (opt & 1) +#define OPT_NODEREF (opt & 2) +#define OPT_VERBOSE (USE_DESKTOP(opt & 0x04) SKIP_DESKTOP(0)) +#define OPT_CHANGED (USE_DESKTOP(opt & 0x08) SKIP_DESKTOP(0)) +#define OPT_QUIET (USE_DESKTOP(opt & 0x10) SKIP_DESKTOP(0)) +/* POSIX options + * -L traverse every symbolic link to a directory encountered + * -H if a command line argument is a symbolic link to a directory, traverse it + * -P do not traverse any symbolic links (default) + * We do not conform to the following: + * "Specifying more than one of -H, -L, and -P is not an error. + * The last option specified shall determine the behavior of the utility." */ +/* -L */ +#define BIT_TRAVERSE 0x20 +#define OPT_TRAVERSE (USE_DESKTOP(opt & BIT_TRAVERSE) SKIP_DESKTOP(0)) +/* -H or -L */ +#define BIT_TRAVERSE_TOP (0x20|0x40) +#define OPT_TRAVERSE_TOP (USE_DESKTOP(opt & BIT_TRAVERSE_TOP) SKIP_DESKTOP(0)) + +typedef int (*chown_fptr)(const char *, uid_t, gid_t); + +struct param_t { + struct bb_uidgid_t ugid; + chown_fptr chown_func; +}; + +static int FAST_FUNC fileAction(const char *fileName, struct stat *statbuf, + void *vparam, int depth UNUSED_PARAM) { - unsigned long r; - char *p; - - r = strtoul(s, &p, 10); - if (*p || (s == p)) { - r = my_getxxnam(s); +#define param (*(struct param_t*)vparam) +#define opt option_mask32 + uid_t u = (param.ugid.uid == (uid_t)-1) ? statbuf->st_uid : param.ugid.uid; + gid_t g = (param.ugid.gid == (gid_t)-1) ? statbuf->st_gid : param.ugid.gid; + + if (param.chown_func(fileName, u, g) == 0) { + if (OPT_VERBOSE + || (OPT_CHANGED && (statbuf->st_uid != u || statbuf->st_gid != g)) + ) { + printf("changed ownership of '%s' to %u:%u\n", + fileName, (unsigned)u, (unsigned)g); + } + return TRUE; } - - return r; + if (!OPT_QUIET) + bb_simple_perror_msg(fileName); /* A filename can have % in it... */ + return FALSE; +#undef opt +#undef param } -int chown_main(int argc, char **argv) +int chown_main(int argc UNUSED_PARAM, char **argv) { - int flags; int retval = EXIT_SUCCESS; - char *groupName; + int opt, flags; + struct param_t param; - flags = bb_getopt_ulflags(argc, argv, "Rh"); - - if (flags & FLAG_h) chown_func = lchown; - - if (argc - optind < 2) { - bb_show_usage(); - } + param.ugid.uid = -1; + param.ugid.gid = -1; + param.chown_func = chown; + opt_complementary = "-2"; + opt = getopt32(argv, OPT_STR); argv += optind; - /* First, check if there is a group name here */ - if ((groupName = strchr(*argv, '.')) == NULL) { - groupName = strchr(*argv, ':'); + /* This matches coreutils behavior (almost - see below) */ + if (OPT_NODEREF + /* || (OPT_RECURSE && !OPT_TRAVERSE_TOP): */ + USE_DESKTOP( || (opt & (BIT_RECURSE|BIT_TRAVERSE_TOP)) == BIT_RECURSE) + ) { + param.chown_func = lchown; } - gid = -1; - if (groupName) { - *groupName++ = '\0'; - gid = get_ug_id(groupName, my_getgrnam); - } + flags = ACTION_DEPTHFIRST; /* match coreutils order */ + if (OPT_RECURSE) + flags |= ACTION_RECURSE; + if (OPT_TRAVERSE_TOP) + flags |= ACTION_FOLLOWLINKS_L0; /* -H/-L: follow links on depth 0 */ + if (OPT_TRAVERSE) + flags |= ACTION_FOLLOWLINKS; /* follow links if -L */ - /* Now check for the username */ - uid = get_ug_id(*argv, my_getpwnam); + parse_chown_usergroup_or_die(¶m.ugid, argv[0]); - ++argv; - /* Ok, ready to do the deed now */ + argv++; do { - if (! recursive_action (*argv, (flags & FLAG_R), FALSE, FALSE, - fileAction, fileAction, NULL)) { + if (!recursive_action(*argv, + flags, /* flags */ + fileAction, /* file action */ + fileAction, /* dir action */ + ¶m, /* user data */ + 0) /* depth */ + ) { retval = EXIT_FAILURE; } } while (*++argv); @@ -109,9 +118,63 @@ int chown_main(int argc, char **argv) } /* -Local Variables: -c-file-style: "linux" -c-basic-offset: 4 -tab-width: 4 -End: +Testcase. Run in empty directory. + +#!/bin/sh +t1="/tmp/busybox chown" +t2="/usr/bin/chown" +create() { + rm -rf $1; mkdir $1 + ( + cd $1 || exit 1 + mkdir dir dir2 + >up + >file + >dir/file + >dir2/file + ln -s dir linkdir + ln -s file linkfile + ln -s ../up dir/linkup + ln -s ../dir2 dir/linkupdir2 + ) + chown -R 0:0 $1 +} +tst() { + create test1 + create test2 + echo "[$1]" >>test1.out + echo "[$1]" >>test2.out + (cd test1; $t1 $1) >>test1.out 2>&1 + (cd test2; $t2 $1) >>test2.out 2>&1 + (cd test1; ls -lnR) >out1 + (cd test2; ls -lnR) >out2 + echo "chown $1" >out.diff + if ! diff -u out1 out2 >>out.diff; then exit 1; fi + rm out.diff +} +tst_for_each() { + tst "$1 1:1 file" + tst "$1 1:1 dir" + tst "$1 1:1 linkdir" + tst "$1 1:1 linkfile" +} +echo "If script produced 'out.diff' file, then at least one testcase failed" +>test1.out +>test2.out +# These match coreutils 6.8: +tst_for_each "-v" +tst_for_each "-vR" +tst_for_each "-vRP" +tst_for_each "-vRL" +tst_for_each "-vRH" +tst_for_each "-vh" +tst_for_each "-vhR" +tst_for_each "-vhRP" +tst_for_each "-vhRL" +tst_for_each "-vhRH" +# Fix `name' in coreutils output +sed 's/`/'"'"'/g' -i test2.out +# Compare us with coreutils output +diff -u test1.out test2.out + */ |