[8192e4ff] | 1 | /* $NetBSD: mv.c,v 1.41 2008/07/20 00:52:40 lukem Exp $ */ |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (c) 1989, 1993, 1994 |
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| 5 | * The Regents of the University of California. All rights reserved. |
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| 6 | * |
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| 7 | * This code is derived from software contributed to Berkeley by |
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| 8 | * Ken Smith of The State University of New York at Buffalo. |
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| 9 | * |
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| 10 | * Redistribution and use in source and binary forms, with or without |
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| 11 | * modification, are permitted provided that the following conditions |
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| 12 | * are met: |
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| 13 | * 1. Redistributions of source code must retain the above copyright |
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| 14 | * notice, this list of conditions and the following disclaimer. |
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 16 | * notice, this list of conditions and the following disclaimer in the |
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| 17 | * documentation and/or other materials provided with the distribution. |
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| 18 | * 3. Neither the name of the University nor the names of its contributors |
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| 19 | * may be used to endorse or promote products derived from this software |
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| 20 | * without specific prior written permission. |
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| 21 | * |
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| 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 32 | * SUCH DAMAGE. |
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| 33 | */ |
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| 34 | |
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[575babc] | 35 | #ifdef HAVE_CONFIG_H |
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| 36 | #include "config.h" |
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| 37 | #endif |
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| 38 | |
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[8192e4ff] | 39 | #if 0 |
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| 40 | #include <sys/cdefs.h> |
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| 41 | #ifndef lint |
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| 42 | __COPYRIGHT("@(#) Copyright (c) 1989, 1993, 1994\ |
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| 43 | The Regents of the University of California. All rights reserved."); |
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| 44 | #endif /* not lint */ |
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| 45 | |
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| 46 | #ifndef lint |
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| 47 | #if 0 |
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| 48 | static char sccsid[] = "@(#)mv.c 8.2 (Berkeley) 4/2/94"; |
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| 49 | #else |
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| 50 | __RCSID("$NetBSD: mv.c,v 1.41 2008/07/20 00:52:40 lukem Exp $"); |
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| 51 | #endif |
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| 52 | #endif /* not lint */ |
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| 53 | #endif |
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| 54 | |
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| 55 | #include <rtems.h> |
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| 56 | #include <rtems/shell.h> |
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| 57 | #include <rtems/shellconfig.h> |
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[b079fe33] | 58 | #define __need_getopt_newlib |
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[8192e4ff] | 59 | #include <getopt.h> |
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| 60 | |
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| 61 | #include <sys/param.h> |
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| 62 | #include <sys/time.h> |
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| 63 | #include <sys/wait.h> |
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| 64 | #include <sys/stat.h> |
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| 65 | |
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[6cdaa85] | 66 | #include "err.h" |
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[8192e4ff] | 67 | #include <errno.h> |
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| 68 | #include <fcntl.h> |
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| 69 | #include <grp.h> |
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| 70 | #include <locale.h> |
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| 71 | #include <pwd.h> |
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| 72 | #include <stdio.h> |
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| 73 | #include <stdlib.h> |
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| 74 | #include <string.h> |
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| 75 | #include <unistd.h> |
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| 76 | |
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[3421e520] | 77 | #include "internal.h" |
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| 78 | |
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[8192e4ff] | 79 | #include "pathnames-mv.h" |
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| 80 | |
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| 81 | /* RTEMS specific changes */ |
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| 82 | typedef struct { |
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| 83 | int fflg, iflg, vflg; |
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| 84 | int stdin_ok; |
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| 85 | int exit_code; |
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| 86 | jmp_buf exit_jmp; |
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| 87 | } rtems_shell_mv_globals; |
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| 88 | |
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| 89 | int copy(char *, char *); |
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| 90 | int do_move(char *, char *); |
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| 91 | int fastcopy(char *, char *, struct stat *); |
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| 92 | void usage(void); |
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| 93 | int main(int, char *[]); |
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| 94 | |
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| 95 | #define fflg globals->fflg |
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| 96 | #define iflg globals->iflg |
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| 97 | #define vflg globals->vflg |
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| 98 | #define stdin_ok globals->stdin_ok |
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| 99 | #define exit_jump &(globals->exit_jmp) |
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| 100 | |
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| 101 | #include <setjmp.h> |
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| 102 | |
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| 103 | #define exit(ec) rtems_shell_mv_exit(globals, ec) |
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| 104 | |
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[3237e88] | 105 | static int |
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| 106 | main_mv(rtems_shell_mv_globals* globals, int argc, char *argv[]); |
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| 107 | |
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| 108 | |
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[3421e520] | 109 | static void |
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[8192e4ff] | 110 | rtems_shell_mv_exit (rtems_shell_mv_globals* globals, int code) |
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| 111 | { |
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| 112 | globals->exit_code = code; |
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| 113 | longjmp (globals->exit_jmp, 1); |
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| 114 | } |
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| 115 | |
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| 116 | const char *user_from_uid(uid_t uid, int nouser); |
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| 117 | char *group_from_gid(gid_t gid, int nogroup); |
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| 118 | |
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[43b09a98] | 119 | int |
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[8192e4ff] | 120 | rtems_shell_main_mv(int argc, char *argv[]) |
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| 121 | { |
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| 122 | rtems_shell_mv_globals mv_globals; |
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| 123 | memset (&mv_globals, 0, sizeof (mv_globals)); |
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| 124 | mv_globals.exit_code = 1; |
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| 125 | if (setjmp (mv_globals.exit_jmp) == 0) |
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| 126 | return main_mv (&mv_globals, argc, argv); |
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| 127 | return mv_globals.exit_code; |
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| 128 | } |
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| 129 | |
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| 130 | #define do_move(a1, a2) do_move_mv(globals, a1, a2) |
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[0893220] | 131 | #define fastcopy(a1, a2, a3) fastcopy_mv(globals, a1, a2, a3) |
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| 132 | #define copy(a1, a2) copy_mv(globals, a1, a2) |
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[8192e4ff] | 133 | #define usage() usage_mv(globals) |
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| 134 | |
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| 135 | static int do_move_mv(rtems_shell_mv_globals* globals, char *from, char *to); |
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| 136 | static int fastcopy_mv(rtems_shell_mv_globals* globals, |
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| 137 | char *from, char *to, struct stat *sbp); |
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| 138 | static int copy_mv(rtems_shell_mv_globals* globals, char *from, char *to); |
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| 139 | static void usage_mv(rtems_shell_mv_globals* globals); |
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| 140 | |
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| 141 | /* RTEMS changes */ |
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| 142 | |
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| 143 | int |
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| 144 | main_mv(rtems_shell_mv_globals* globals, int argc, char *argv[]) |
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| 145 | { |
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| 146 | int ch, len, rval; |
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| 147 | char *p, *endp; |
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| 148 | struct stat sb; |
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| 149 | char path[MAXPATHLEN + 1]; |
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| 150 | size_t baselen; |
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| 151 | |
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| 152 | struct getopt_data getopt_reent; |
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| 153 | memset(&getopt_reent, 0, sizeof(getopt_data)); |
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[0893220] | 154 | |
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[8192e4ff] | 155 | /* setprogname(argv[0]); */ |
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[0893220] | 156 | |
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[8192e4ff] | 157 | (void)setlocale(LC_ALL, ""); |
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| 158 | |
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| 159 | while ((ch = getopt_r(argc, argv, "ifv", &getopt_reent)) != -1) |
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| 160 | switch (ch) { |
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| 161 | case 'i': |
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| 162 | fflg = 0; |
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| 163 | iflg = 1; |
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| 164 | break; |
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| 165 | case 'f': |
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| 166 | iflg = 0; |
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| 167 | fflg = 1; |
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| 168 | break; |
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| 169 | case 'v': |
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| 170 | vflg = 1; |
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| 171 | break; |
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| 172 | default: |
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| 173 | usage(); |
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| 174 | } |
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| 175 | argc -= getopt_reent.optind; |
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| 176 | argv += getopt_reent.optind; |
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| 177 | |
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| 178 | if (argc < 2) |
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| 179 | usage(); |
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| 180 | |
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| 181 | stdin_ok = isatty(STDIN_FILENO); |
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| 182 | |
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| 183 | /* |
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| 184 | * If the stat on the target fails or the target isn't a directory, |
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| 185 | * try the move. More than 2 arguments is an error in this case. |
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| 186 | */ |
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| 187 | if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) { |
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| 188 | if (argc > 2) |
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| 189 | usage(); |
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| 190 | exit(do_move(argv[0], argv[1])); |
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| 191 | } |
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| 192 | |
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| 193 | /* It's a directory, move each file into it. */ |
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| 194 | baselen = strlcpy(path, argv[argc - 1], sizeof(path)); |
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| 195 | if (baselen >= sizeof(path)) |
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| 196 | errx(exit_jump, 1, "%s: destination pathname too long", argv[argc - 1]); |
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| 197 | endp = &path[baselen]; |
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| 198 | if (!baselen || *(endp - 1) != '/') { |
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| 199 | *endp++ = '/'; |
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| 200 | ++baselen; |
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| 201 | } |
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| 202 | for (rval = 0; --argc; ++argv) { |
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| 203 | p = *argv + strlen(*argv) - 1; |
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| 204 | while (*p == '/' && p != *argv) |
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| 205 | *p-- = '\0'; |
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| 206 | if ((p = strrchr(*argv, '/')) == NULL) |
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| 207 | p = *argv; |
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| 208 | else |
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| 209 | ++p; |
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| 210 | |
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| 211 | if ((baselen + (len = strlen(p))) >= MAXPATHLEN) { |
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| 212 | warnx("%s: destination pathname too long", *argv); |
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| 213 | rval = 1; |
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| 214 | } else { |
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| 215 | memmove(endp, p, len + 1); |
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| 216 | if (do_move(*argv, path)) |
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| 217 | rval = 1; |
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| 218 | } |
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| 219 | } |
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| 220 | return rval; |
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| 221 | } |
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| 222 | |
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| 223 | int |
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| 224 | do_move_mv(rtems_shell_mv_globals* globals, char *from, char *to) |
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| 225 | { |
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| 226 | struct stat sb; |
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| 227 | char modep[15]; |
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| 228 | |
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| 229 | /* |
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| 230 | * (1) If the destination path exists, the -f option is not specified |
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| 231 | * and either of the following conditions are true: |
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| 232 | * |
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| 233 | * (a) The permissions of the destination path do not permit |
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| 234 | * writing and the standard input is a terminal. |
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| 235 | * (b) The -i option is specified. |
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| 236 | * |
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| 237 | * the mv utility shall write a prompt to standard error and |
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| 238 | * read a line from standard input. If the response is not |
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| 239 | * affirmative, mv shall do nothing more with the current |
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| 240 | * source file... |
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| 241 | */ |
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| 242 | if (!fflg && !access(to, F_OK)) { |
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| 243 | int ask = 1; |
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| 244 | int ch; |
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| 245 | |
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| 246 | if (iflg) { |
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| 247 | if (access(from, F_OK)) { |
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| 248 | warn("rename %s", from); |
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| 249 | return (1); |
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| 250 | } |
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| 251 | (void)fprintf(stderr, "overwrite %s? ", to); |
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| 252 | } else if (stdin_ok && access(to, W_OK) && !stat(to, &sb)) { |
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| 253 | if (access(from, F_OK)) { |
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| 254 | warn("rename %s", from); |
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| 255 | return (1); |
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| 256 | } |
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| 257 | strmode(sb.st_mode, modep); |
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| 258 | (void)fprintf(stderr, "override %s%s%s/%s for %s? ", |
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| 259 | modep + 1, modep[9] == ' ' ? "" : " ", |
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| 260 | user_from_uid(sb.st_uid, 0), |
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| 261 | group_from_gid(sb.st_gid, 0), to); |
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| 262 | } else |
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| 263 | ask = 0; |
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| 264 | if (ask) { |
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| 265 | if ((ch = getchar()) != EOF && ch != '\n') { |
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| 266 | int ch2; |
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| 267 | while ((ch2 = getchar()) != EOF && ch2 != '\n') |
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| 268 | continue; |
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| 269 | } |
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| 270 | if (ch != 'y' && ch != 'Y') |
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| 271 | return (0); |
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| 272 | } |
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| 273 | } |
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| 274 | |
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| 275 | /* |
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| 276 | * (2) If rename() succeeds, mv shall do nothing more with the |
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| 277 | * current source file. If it fails for any other reason than |
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| 278 | * EXDEV, mv shall write a diagnostic message to the standard |
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| 279 | * error and do nothing more with the current source file. |
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| 280 | * |
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| 281 | * (3) If the destination path exists, and it is a file of type |
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| 282 | * directory and source_file is not a file of type directory, |
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| 283 | * or it is a file not of type directory, and source file is |
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| 284 | * a file of type directory, mv shall write a diagnostic |
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| 285 | * message to standard error, and do nothing more with the |
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| 286 | * current source file... |
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| 287 | */ |
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| 288 | if (!rename(from, to)) { |
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| 289 | if (vflg) |
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| 290 | printf("%s -> %s\n", from, to); |
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| 291 | return (0); |
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| 292 | } |
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| 293 | |
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| 294 | if (errno != EXDEV) { |
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| 295 | warn("rename %s to %s", from, to); |
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| 296 | return (1); |
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| 297 | } |
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| 298 | |
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| 299 | /* |
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| 300 | * (4) If the destination path exists, mv shall attempt to remove it. |
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| 301 | * If this fails for any reason, mv shall write a diagnostic |
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| 302 | * message to the standard error and do nothing more with the |
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| 303 | * current source file... |
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| 304 | */ |
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| 305 | if (!lstat(to, &sb)) { |
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| 306 | if ((S_ISDIR(sb.st_mode)) ? rmdir(to) : unlink(to)) { |
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| 307 | warn("can't remove %s", to); |
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| 308 | return (1); |
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| 309 | } |
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| 310 | } |
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| 311 | |
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| 312 | /* |
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| 313 | * (5) The file hierarchy rooted in source_file shall be duplicated |
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| 314 | * as a file hierarchy rooted in the destination path... |
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| 315 | */ |
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| 316 | if (lstat(from, &sb)) { |
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| 317 | warn("%s", from); |
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| 318 | return (1); |
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| 319 | } |
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| 320 | |
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| 321 | return (S_ISREG(sb.st_mode) ? |
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| 322 | fastcopy(from, to, &sb) : copy(from, to)); |
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| 323 | } |
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| 324 | |
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| 325 | int |
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| 326 | fastcopy_mv(rtems_shell_mv_globals* globals, char *from, char *to, struct stat *sbp) |
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| 327 | { |
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[2cdace7] | 328 | #ifndef __rtems__ |
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[8192e4ff] | 329 | struct timeval tval[2]; |
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[2cdace7] | 330 | #endif |
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[8192e4ff] | 331 | uint32_t blen; |
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| 332 | static char *bp; |
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| 333 | int nread, from_fd, to_fd; |
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| 334 | |
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| 335 | blen = 0; |
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[0893220] | 336 | |
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[8192e4ff] | 337 | if ((from_fd = open(from, O_RDONLY, 0)) < 0) { |
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| 338 | warn("%s", from); |
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| 339 | return (1); |
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| 340 | } |
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| 341 | if ((to_fd = |
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| 342 | open(to, O_CREAT | O_TRUNC | O_WRONLY, sbp->st_mode)) < 0) { |
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| 343 | warn("%s", to); |
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| 344 | (void)close(from_fd); |
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| 345 | return (1); |
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| 346 | } |
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| 347 | if (!blen && !(bp = malloc(blen = sbp->st_blksize))) { |
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| 348 | warn(NULL); |
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| 349 | blen = 0; |
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| 350 | (void)close(from_fd); |
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| 351 | (void)close(to_fd); |
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| 352 | return (1); |
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| 353 | } |
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| 354 | while ((nread = read(from_fd, bp, blen)) > 0) |
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| 355 | if (write(to_fd, bp, nread) != nread) { |
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| 356 | warn("%s", to); |
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| 357 | goto err; |
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| 358 | } |
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| 359 | if (nread < 0) { |
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| 360 | warn("%s", from); |
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| 361 | err: if (unlink(to)) |
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| 362 | warn("%s: remove", to); |
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| 363 | (void)free(bp); |
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| 364 | (void)close(from_fd); |
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| 365 | (void)close(to_fd); |
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| 366 | return (1); |
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| 367 | } |
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[0893220] | 368 | |
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[8192e4ff] | 369 | (void)free(bp); |
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| 370 | (void)close(from_fd); |
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[2cdace7] | 371 | #ifndef __rtems__ |
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[8192e4ff] | 372 | #ifdef xBSD4_4 |
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| 373 | TIMESPEC_TO_TIMEVAL(&tval[0], &sbp->st_atimespec); |
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| 374 | TIMESPEC_TO_TIMEVAL(&tval[1], &sbp->st_mtimespec); |
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| 375 | #else |
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| 376 | tval[0].tv_sec = sbp->st_atime; |
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| 377 | tval[1].tv_sec = sbp->st_mtime; |
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| 378 | tval[0].tv_usec = 0; |
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| 379 | tval[1].tv_usec = 0; |
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| 380 | #endif |
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[2cdace7] | 381 | #endif |
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| 382 | #ifndef __rtems__ |
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[8192e4ff] | 383 | #ifdef _SRV5 |
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| 384 | if (utimes(to, tval)) |
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| 385 | #else |
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| 386 | if (futimes(to_fd, tval)) |
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| 387 | #endif |
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| 388 | warn("%s: set times", to); |
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| 389 | #endif |
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| 390 | if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) { |
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| 391 | if (errno != EPERM) |
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| 392 | warn("%s: set owner/group", to); |
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| 393 | sbp->st_mode &= ~(S_ISUID | S_ISGID); |
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| 394 | } |
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| 395 | if (fchmod(to_fd, sbp->st_mode)) |
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| 396 | warn("%s: set mode", to); |
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| 397 | #if 0 |
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| 398 | if (fchflags(to_fd, sbp->st_flags) && (errno != EOPNOTSUPP)) |
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| 399 | warn("%s: set flags (was: 0%07o)", to, sbp->st_flags); |
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| 400 | #endif |
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| 401 | if (close(to_fd)) { |
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| 402 | warn("%s", to); |
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| 403 | return (1); |
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| 404 | } |
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| 405 | |
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| 406 | if (unlink(from)) { |
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| 407 | warn("%s: remove", from); |
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| 408 | return (1); |
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| 409 | } |
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| 410 | |
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| 411 | if (vflg) |
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| 412 | printf("%s -> %s\n", from, to); |
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| 413 | |
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| 414 | return (0); |
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| 415 | } |
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| 416 | |
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| 417 | int |
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| 418 | copy_mv(rtems_shell_mv_globals* globals, char *from, char *to) |
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| 419 | { |
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| 420 | char* cp_argv[5] = { "mv", vflg ? "-PRpv" : "-PRp", "--", from, to }; |
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| 421 | char* rm_argv[4] = { "mv", "-rf", "--", from }; |
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| 422 | int result; |
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| 423 | |
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| 424 | result = rtems_shell_main_cp(5, cp_argv); |
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| 425 | if (result) { |
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| 426 | warnx("%s: did not terminate normally", _PATH_CP); |
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| 427 | return (1); |
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| 428 | } |
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| 429 | result = rtems_shell_main_rm(4, rm_argv); |
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| 430 | if (result) { |
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| 431 | warnx("%s: did not terminate normally", _PATH_RM); |
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| 432 | return (1); |
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| 433 | } |
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| 434 | #if 0 |
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| 435 | pid_t pid; |
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| 436 | int status; |
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| 437 | |
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| 438 | if ((pid = vfork()) == 0) { |
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| 439 | execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", "--", from, to, NULL); |
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| 440 | warn("%s", _PATH_CP); |
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| 441 | _exit(1); |
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| 442 | } |
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| 443 | if (waitpid(pid, &status, 0) == -1) { |
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| 444 | warn("%s: waitpid", _PATH_CP); |
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| 445 | return (1); |
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| 446 | } |
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| 447 | if (!WIFEXITED(status)) { |
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| 448 | warnx("%s: did not terminate normally", _PATH_CP); |
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| 449 | return (1); |
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| 450 | } |
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| 451 | if (WEXITSTATUS(status)) { |
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| 452 | warnx("%s: terminated with %d (non-zero) status", |
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| 453 | _PATH_CP, WEXITSTATUS(status)); |
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| 454 | return (1); |
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| 455 | } |
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| 456 | if (!(pid = vfork())) { |
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| 457 | execl(_PATH_RM, "mv", "-rf", "--", from, NULL); |
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| 458 | warn("%s", _PATH_RM); |
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| 459 | _exit(1); |
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| 460 | } |
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| 461 | if (waitpid(pid, &status, 0) == -1) { |
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| 462 | warn("%s: waitpid", _PATH_RM); |
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| 463 | return (1); |
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| 464 | } |
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| 465 | if (!WIFEXITED(status)) { |
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| 466 | warnx("%s: did not terminate normally", _PATH_RM); |
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| 467 | return (1); |
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| 468 | } |
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| 469 | if (WEXITSTATUS(status)) { |
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| 470 | warnx("%s: terminated with %d (non-zero) status", |
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| 471 | _PATH_RM, WEXITSTATUS(status)); |
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| 472 | return (1); |
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| 473 | } |
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| 474 | #endif |
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| 475 | return (0); |
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| 476 | } |
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| 477 | |
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| 478 | void |
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| 479 | usage_mv(rtems_shell_mv_globals* globals) |
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| 480 | { |
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| 481 | (void)fprintf(stderr, "usage: %s [-fiv] source target\n" |
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| 482 | " %s [-fiv] source ... directory\n", |
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| 483 | "mv", "mv"); |
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| 484 | exit(1); |
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| 485 | /* NOTREACHED */ |
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| 486 | } |
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| 487 | |
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| 488 | rtems_shell_cmd_t rtems_shell_MV_Command = { |
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| 489 | "mv", /* name */ |
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| 490 | "[-fiv] source target ...", /* usage */ |
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| 491 | "files", /* topic */ |
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| 492 | rtems_shell_main_mv, /* command */ |
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| 493 | NULL, /* alias */ |
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| 494 | NULL /* next */ |
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| 495 | }; |
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