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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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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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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58 | #include <getopt.h> |
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59 | |
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60 | #include <sys/param.h> |
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61 | #include <sys/time.h> |
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62 | #include <sys/wait.h> |
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63 | #include <sys/stat.h> |
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64 | |
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65 | #include <err.h> |
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66 | #include <errno.h> |
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67 | #include <fcntl.h> |
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68 | #include <grp.h> |
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69 | #include <locale.h> |
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70 | #include <pwd.h> |
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71 | #include <stdio.h> |
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72 | #include <stdlib.h> |
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73 | #include <string.h> |
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74 | #include <unistd.h> |
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75 | |
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76 | #include "pathnames-mv.h" |
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77 | |
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78 | /* RTEMS specific changes */ |
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79 | typedef struct { |
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80 | int fflg, iflg, vflg; |
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81 | int stdin_ok; |
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82 | int exit_code; |
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83 | jmp_buf exit_jmp; |
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84 | } rtems_shell_mv_globals; |
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85 | |
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86 | int copy(char *, char *); |
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87 | int do_move(char *, char *); |
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88 | int fastcopy(char *, char *, struct stat *); |
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89 | void usage(void); |
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90 | int main(int, char *[]); |
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91 | |
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92 | #define fflg globals->fflg |
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93 | #define iflg globals->iflg |
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94 | #define vflg globals->vflg |
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95 | #define stdin_ok globals->stdin_ok |
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96 | #define exit_jump &(globals->exit_jmp) |
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97 | |
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98 | #include <setjmp.h> |
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99 | |
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100 | #define exit(ec) rtems_shell_mv_exit(globals, ec) |
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101 | |
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102 | void |
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103 | rtems_shell_mv_exit (rtems_shell_mv_globals* globals, int code) |
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104 | { |
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105 | globals->exit_code = code; |
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106 | longjmp (globals->exit_jmp, 1); |
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107 | } |
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108 | |
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109 | void strmode(mode_t mode, char *p); |
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110 | const char *user_from_uid(uid_t uid, int nouser); |
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111 | char *group_from_gid(gid_t gid, int nogroup); |
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112 | |
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113 | static int main_mv(rtems_shell_mv_globals* globals, int argc, char *argv[]); |
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114 | |
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115 | int rtems_shell_main_cp(int argc, char *argv[]); |
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116 | int rtems_shell_main_rm(int argc, char *argv[]); |
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117 | |
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118 | int |
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119 | rtems_shell_main_mv(int argc, char *argv[]) |
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120 | { |
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121 | rtems_shell_mv_globals mv_globals; |
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122 | memset (&mv_globals, 0, sizeof (mv_globals)); |
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123 | mv_globals.exit_code = 1; |
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124 | if (setjmp (mv_globals.exit_jmp) == 0) |
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125 | return main_mv (&mv_globals, argc, argv); |
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126 | return mv_globals.exit_code; |
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127 | } |
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128 | |
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129 | #define do_move(a1, a2) do_move_mv(globals, a1, a2) |
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130 | #define fastcopy(a1, a2, a3) fastcopy_mv(globals, a1, a2, a3) |
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131 | #define copy(a1, a2) copy_mv(globals, a1, a2) |
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132 | #define usage() usage_mv(globals) |
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133 | |
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134 | static int do_move_mv(rtems_shell_mv_globals* globals, char *from, char *to); |
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135 | static int fastcopy_mv(rtems_shell_mv_globals* globals, |
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136 | char *from, char *to, struct stat *sbp); |
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137 | static int copy_mv(rtems_shell_mv_globals* globals, char *from, char *to); |
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138 | static void usage_mv(rtems_shell_mv_globals* globals); |
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139 | |
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140 | /* RTEMS changes */ |
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141 | |
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142 | int |
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143 | main_mv(rtems_shell_mv_globals* globals, int argc, char *argv[]) |
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144 | { |
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145 | int ch, len, rval; |
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146 | char *p, *endp; |
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147 | struct stat sb; |
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148 | char path[MAXPATHLEN + 1]; |
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149 | size_t baselen; |
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150 | |
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151 | struct getopt_data getopt_reent; |
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152 | memset(&getopt_reent, 0, sizeof(getopt_data)); |
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153 | |
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154 | /* setprogname(argv[0]); */ |
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155 | |
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156 | (void)setlocale(LC_ALL, ""); |
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157 | |
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158 | while ((ch = getopt_r(argc, argv, "ifv", &getopt_reent)) != -1) |
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159 | switch (ch) { |
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160 | case 'i': |
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161 | fflg = 0; |
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162 | iflg = 1; |
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163 | break; |
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164 | case 'f': |
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165 | iflg = 0; |
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166 | fflg = 1; |
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167 | break; |
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168 | case 'v': |
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169 | vflg = 1; |
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170 | break; |
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171 | default: |
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172 | usage(); |
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173 | } |
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174 | argc -= getopt_reent.optind; |
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175 | argv += getopt_reent.optind; |
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176 | |
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177 | if (argc < 2) |
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178 | usage(); |
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179 | |
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180 | stdin_ok = isatty(STDIN_FILENO); |
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181 | |
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182 | /* |
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183 | * If the stat on the target fails or the target isn't a directory, |
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184 | * try the move. More than 2 arguments is an error in this case. |
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185 | */ |
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186 | if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) { |
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187 | if (argc > 2) |
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188 | usage(); |
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189 | exit(do_move(argv[0], argv[1])); |
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190 | } |
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191 | |
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192 | /* It's a directory, move each file into it. */ |
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193 | baselen = strlcpy(path, argv[argc - 1], sizeof(path)); |
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194 | if (baselen >= sizeof(path)) |
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195 | errx(exit_jump, 1, "%s: destination pathname too long", argv[argc - 1]); |
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196 | endp = &path[baselen]; |
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197 | if (!baselen || *(endp - 1) != '/') { |
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198 | *endp++ = '/'; |
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199 | ++baselen; |
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200 | } |
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201 | for (rval = 0; --argc; ++argv) { |
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202 | p = *argv + strlen(*argv) - 1; |
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203 | while (*p == '/' && p != *argv) |
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204 | *p-- = '\0'; |
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205 | if ((p = strrchr(*argv, '/')) == NULL) |
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206 | p = *argv; |
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207 | else |
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208 | ++p; |
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209 | |
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210 | if ((baselen + (len = strlen(p))) >= MAXPATHLEN) { |
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211 | warnx("%s: destination pathname too long", *argv); |
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212 | rval = 1; |
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213 | } else { |
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214 | memmove(endp, p, len + 1); |
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215 | if (do_move(*argv, path)) |
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216 | rval = 1; |
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217 | } |
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218 | } |
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219 | return rval; |
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220 | } |
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221 | |
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222 | int |
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223 | do_move_mv(rtems_shell_mv_globals* globals, char *from, char *to) |
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224 | { |
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225 | struct stat sb; |
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226 | char modep[15]; |
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227 | |
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228 | /* |
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229 | * (1) If the destination path exists, the -f option is not specified |
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230 | * and either of the following conditions are true: |
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231 | * |
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232 | * (a) The permissions of the destination path do not permit |
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233 | * writing and the standard input is a terminal. |
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234 | * (b) The -i option is specified. |
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235 | * |
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236 | * the mv utility shall write a prompt to standard error and |
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237 | * read a line from standard input. If the response is not |
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238 | * affirmative, mv shall do nothing more with the current |
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239 | * source file... |
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240 | */ |
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241 | if (!fflg && !access(to, F_OK)) { |
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242 | int ask = 1; |
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243 | int ch; |
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244 | |
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245 | if (iflg) { |
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246 | if (access(from, F_OK)) { |
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247 | warn("rename %s", from); |
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248 | return (1); |
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249 | } |
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250 | (void)fprintf(stderr, "overwrite %s? ", to); |
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251 | } else if (stdin_ok && access(to, W_OK) && !stat(to, &sb)) { |
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252 | if (access(from, F_OK)) { |
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253 | warn("rename %s", from); |
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254 | return (1); |
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255 | } |
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256 | strmode(sb.st_mode, modep); |
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257 | (void)fprintf(stderr, "override %s%s%s/%s for %s? ", |
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258 | modep + 1, modep[9] == ' ' ? "" : " ", |
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259 | user_from_uid(sb.st_uid, 0), |
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260 | group_from_gid(sb.st_gid, 0), to); |
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261 | } else |
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262 | ask = 0; |
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263 | if (ask) { |
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264 | if ((ch = getchar()) != EOF && ch != '\n') { |
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265 | int ch2; |
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266 | while ((ch2 = getchar()) != EOF && ch2 != '\n') |
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267 | continue; |
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268 | } |
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269 | if (ch != 'y' && ch != 'Y') |
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270 | return (0); |
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271 | } |
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272 | } |
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273 | |
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274 | /* |
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275 | * (2) If rename() succeeds, mv shall do nothing more with the |
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276 | * current source file. If it fails for any other reason than |
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277 | * EXDEV, mv shall write a diagnostic message to the standard |
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278 | * error and do nothing more with the current source file. |
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279 | * |
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280 | * (3) If the destination path exists, and it is a file of type |
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281 | * directory and source_file is not a file of type directory, |
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282 | * or it is a file not of type directory, and source file is |
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283 | * a file of type directory, mv shall write a diagnostic |
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284 | * message to standard error, and do nothing more with the |
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285 | * current source file... |
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286 | */ |
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287 | if (!rename(from, to)) { |
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288 | if (vflg) |
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289 | printf("%s -> %s\n", from, to); |
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290 | return (0); |
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291 | } |
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292 | |
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293 | if (errno != EXDEV) { |
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294 | warn("rename %s to %s", from, to); |
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295 | return (1); |
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296 | } |
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297 | |
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298 | /* |
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299 | * (4) If the destination path exists, mv shall attempt to remove it. |
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300 | * If this fails for any reason, mv shall write a diagnostic |
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301 | * message to the standard error and do nothing more with the |
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302 | * current source file... |
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303 | */ |
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304 | if (!lstat(to, &sb)) { |
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305 | if ((S_ISDIR(sb.st_mode)) ? rmdir(to) : unlink(to)) { |
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306 | warn("can't remove %s", to); |
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307 | return (1); |
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308 | } |
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309 | } |
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310 | |
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311 | /* |
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312 | * (5) The file hierarchy rooted in source_file shall be duplicated |
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313 | * as a file hierarchy rooted in the destination path... |
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314 | */ |
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315 | if (lstat(from, &sb)) { |
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316 | warn("%s", from); |
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317 | return (1); |
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318 | } |
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319 | |
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320 | return (S_ISREG(sb.st_mode) ? |
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321 | fastcopy(from, to, &sb) : copy(from, to)); |
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322 | } |
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323 | |
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324 | int |
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325 | fastcopy_mv(rtems_shell_mv_globals* globals, char *from, char *to, struct stat *sbp) |
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326 | { |
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327 | struct timeval tval[2]; |
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328 | uint32_t blen; |
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329 | static char *bp; |
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330 | int nread, from_fd, to_fd; |
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331 | |
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332 | blen = 0; |
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333 | |
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334 | if ((from_fd = open(from, O_RDONLY, 0)) < 0) { |
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335 | warn("%s", from); |
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336 | return (1); |
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337 | } |
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338 | if ((to_fd = |
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339 | open(to, O_CREAT | O_TRUNC | O_WRONLY, sbp->st_mode)) < 0) { |
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340 | warn("%s", to); |
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341 | (void)close(from_fd); |
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342 | return (1); |
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343 | } |
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344 | if (!blen && !(bp = malloc(blen = sbp->st_blksize))) { |
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345 | warn(NULL); |
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346 | blen = 0; |
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347 | (void)close(from_fd); |
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348 | (void)close(to_fd); |
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349 | return (1); |
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350 | } |
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351 | while ((nread = read(from_fd, bp, blen)) > 0) |
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352 | if (write(to_fd, bp, nread) != nread) { |
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353 | warn("%s", to); |
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354 | goto err; |
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355 | } |
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356 | if (nread < 0) { |
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357 | warn("%s", from); |
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358 | err: if (unlink(to)) |
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359 | warn("%s: remove", to); |
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360 | (void)free(bp); |
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361 | (void)close(from_fd); |
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362 | (void)close(to_fd); |
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363 | return (1); |
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364 | } |
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365 | |
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366 | (void)free(bp); |
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367 | (void)close(from_fd); |
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368 | #ifdef xBSD4_4 |
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369 | TIMESPEC_TO_TIMEVAL(&tval[0], &sbp->st_atimespec); |
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370 | TIMESPEC_TO_TIMEVAL(&tval[1], &sbp->st_mtimespec); |
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371 | #else |
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372 | tval[0].tv_sec = sbp->st_atime; |
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373 | tval[1].tv_sec = sbp->st_mtime; |
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374 | tval[0].tv_usec = 0; |
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375 | tval[1].tv_usec = 0; |
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376 | #endif |
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377 | #if 0 |
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378 | #ifdef _SRV5 |
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379 | if (utimes(to, tval)) |
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380 | #else |
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381 | if (futimes(to_fd, tval)) |
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382 | #endif |
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383 | warn("%s: set times", to); |
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384 | #endif |
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385 | if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) { |
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386 | if (errno != EPERM) |
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387 | warn("%s: set owner/group", to); |
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388 | sbp->st_mode &= ~(S_ISUID | S_ISGID); |
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389 | } |
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390 | if (fchmod(to_fd, sbp->st_mode)) |
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391 | warn("%s: set mode", to); |
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392 | #if 0 |
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393 | if (fchflags(to_fd, sbp->st_flags) && (errno != EOPNOTSUPP)) |
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394 | warn("%s: set flags (was: 0%07o)", to, sbp->st_flags); |
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395 | #endif |
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396 | if (close(to_fd)) { |
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397 | warn("%s", to); |
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398 | return (1); |
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399 | } |
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400 | |
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401 | if (unlink(from)) { |
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402 | warn("%s: remove", from); |
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403 | return (1); |
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404 | } |
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405 | |
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406 | if (vflg) |
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407 | printf("%s -> %s\n", from, to); |
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408 | |
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409 | return (0); |
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410 | } |
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411 | |
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412 | int |
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413 | copy_mv(rtems_shell_mv_globals* globals, char *from, char *to) |
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414 | { |
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415 | char* cp_argv[5] = { "mv", vflg ? "-PRpv" : "-PRp", "--", from, to }; |
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416 | char* rm_argv[4] = { "mv", "-rf", "--", from }; |
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417 | int result; |
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418 | |
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419 | result = rtems_shell_main_cp(5, cp_argv); |
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420 | if (result) { |
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421 | warnx("%s: did not terminate normally", _PATH_CP); |
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422 | return (1); |
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423 | } |
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424 | result = rtems_shell_main_rm(4, rm_argv); |
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425 | if (result) { |
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426 | warnx("%s: did not terminate normally", _PATH_RM); |
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427 | return (1); |
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428 | } |
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429 | #if 0 |
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430 | pid_t pid; |
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431 | int status; |
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432 | |
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433 | if ((pid = vfork()) == 0) { |
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434 | execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", "--", from, to, NULL); |
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435 | warn("%s", _PATH_CP); |
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436 | _exit(1); |
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437 | } |
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438 | if (waitpid(pid, &status, 0) == -1) { |
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439 | warn("%s: waitpid", _PATH_CP); |
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440 | return (1); |
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441 | } |
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442 | if (!WIFEXITED(status)) { |
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443 | warnx("%s: did not terminate normally", _PATH_CP); |
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444 | return (1); |
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445 | } |
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446 | if (WEXITSTATUS(status)) { |
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447 | warnx("%s: terminated with %d (non-zero) status", |
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448 | _PATH_CP, WEXITSTATUS(status)); |
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449 | return (1); |
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450 | } |
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451 | if (!(pid = vfork())) { |
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452 | execl(_PATH_RM, "mv", "-rf", "--", from, NULL); |
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453 | warn("%s", _PATH_RM); |
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454 | _exit(1); |
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455 | } |
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456 | if (waitpid(pid, &status, 0) == -1) { |
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457 | warn("%s: waitpid", _PATH_RM); |
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458 | return (1); |
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459 | } |
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460 | if (!WIFEXITED(status)) { |
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461 | warnx("%s: did not terminate normally", _PATH_RM); |
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462 | return (1); |
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463 | } |
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464 | if (WEXITSTATUS(status)) { |
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465 | warnx("%s: terminated with %d (non-zero) status", |
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466 | _PATH_RM, WEXITSTATUS(status)); |
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467 | return (1); |
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468 | } |
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469 | #endif |
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470 | return (0); |
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471 | } |
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472 | |
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473 | void |
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474 | usage_mv(rtems_shell_mv_globals* globals) |
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475 | { |
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476 | (void)fprintf(stderr, "usage: %s [-fiv] source target\n" |
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477 | " %s [-fiv] source ... directory\n", |
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478 | "mv", "mv"); |
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479 | exit(1); |
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480 | /* NOTREACHED */ |
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481 | } |
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482 | |
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483 | rtems_shell_cmd_t rtems_shell_MV_Command = { |
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484 | "mv", /* name */ |
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485 | "[-fiv] source target ...", /* usage */ |
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486 | "files", /* topic */ |
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487 | rtems_shell_main_mv, /* command */ |
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488 | NULL, /* alias */ |
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489 | NULL /* next */ |
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490 | }; |
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