Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 1 | /* Copyright 1986-1992 Emmet P. Gray. |
| 2 | * Copyright 1996-2002,2005,2008,2009 Alain Knaff. |
| 3 | * This file is part of mtools. |
| 4 | * |
| 5 | * Mtools is free software: you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation, either version 3 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * Mtools is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with Mtools. If not, see <http://www.gnu.org/licenses/>. |
| 17 | * |
| 18 | * mdel.c |
| 19 | * Delete an MSDOS file |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include "sysincludes.h" |
| 24 | #include "msdos.h" |
| 25 | #include "mtools.h" |
| 26 | #include "stream.h" |
| 27 | #include "mainloop.h" |
| 28 | #include "fs.h" |
| 29 | #include "file.h" |
| 30 | #include "file_name.h" |
| 31 | |
| 32 | typedef struct Arg_t { |
| 33 | int deltype; |
| 34 | int verbose; |
| 35 | } Arg_t; |
| 36 | |
| 37 | /** |
| 38 | * Wiped the given entry |
| 39 | */ |
| 40 | void wipeEntry(direntry_t *entry) |
| 41 | { |
| 42 | direntry_t longNameEntry; |
| 43 | int i; |
| 44 | initializeDirentry(&longNameEntry, entry->Dir); |
| 45 | for(i=entry->beginSlot; i< entry->endSlot; i++) { |
| 46 | int error; |
| 47 | longNameEntry.entry=i; |
| 48 | dir_read(&longNameEntry, &error); |
| 49 | if(error) |
| 50 | break; |
| 51 | longNameEntry.dir.name[0] = (char) DELMARK; |
| 52 | dir_write(&longNameEntry); |
| 53 | } |
| 54 | entry->dir.name[0] = (char) DELMARK; |
| 55 | dir_write(entry); |
| 56 | } |
| 57 | |
| 58 | static int del_entry(direntry_t *entry, MainParam_t *mp) |
| 59 | { |
| 60 | Arg_t *arg=(Arg_t *) mp->arg; |
| 61 | |
| 62 | if(got_signal) |
| 63 | return ERROR_ONE; |
| 64 | |
| 65 | if(entry->entry == -3) { |
| 66 | fprintf(stderr, "Cannot remove root directory\n"); |
| 67 | return ERROR_ONE; |
| 68 | } |
| 69 | |
| 70 | if (arg->verbose) { |
| 71 | fprintf(stderr,"Removing "); |
| 72 | fprintPwd(stderr, entry,0); |
| 73 | fputc('\n', stderr); |
| 74 | } |
| 75 | |
| 76 | if (entry->dir.attr & (ATTR_READONLY | ATTR_SYSTEM)) { |
| 77 | char tmp[4*MAX_VNAMELEN+1]; |
| 78 | WCHAR_TO_NATIVE(entry->name,tmp,MAX_VNAMELEN); |
| 79 | if (ask_confirmation("%s: \"%s\" is read only, erase anyway (y/n) ? ", |
| 80 | progname, tmp)) |
| 81 | return ERROR_ONE; |
| 82 | } |
| 83 | if (fatFreeWithDirentry(entry)) |
| 84 | return ERROR_ONE; |
| 85 | |
| 86 | wipeEntry(entry); |
| 87 | return GOT_ONE; |
| 88 | } |
| 89 | |
| 90 | static int del_file(direntry_t *entry, MainParam_t *mp) |
| 91 | { |
| 92 | char shortname[13]; |
| 93 | direntry_t subEntry; |
| 94 | Stream_t *SubDir; |
| 95 | Arg_t *arg = (Arg_t *) mp->arg; |
| 96 | MainParam_t sonmp; |
| 97 | int ret; |
| 98 | int r; |
| 99 | |
| 100 | sonmp = *mp; |
| 101 | sonmp.arg = mp->arg; |
| 102 | |
| 103 | r = 0; |
| 104 | if (IS_DIR(entry)){ |
| 105 | /* a directory */ |
| 106 | SubDir = OpenFileByDirentry(entry); |
| 107 | initializeDirentry(&subEntry, SubDir); |
| 108 | ret = 0; |
| 109 | while((r=vfat_lookup(&subEntry, "*", 1, |
| 110 | ACCEPT_DIR | ACCEPT_PLAIN, |
| 111 | shortname, sizeof(shortname), |
| 112 | NULL, 0)) == 0 ){ |
| 113 | if(shortname[0] != DELMARK && |
| 114 | shortname[0] && |
| 115 | shortname[0] != '.' ){ |
| 116 | if(arg->deltype != 2){ |
| 117 | fprintf(stderr, |
| 118 | "Directory "); |
| 119 | fprintPwd(stderr, entry,0); |
| 120 | fprintf(stderr," non empty\n"); |
| 121 | ret = ERROR_ONE; |
| 122 | break; |
| 123 | } |
| 124 | if(got_signal) { |
| 125 | ret = ERROR_ONE; |
| 126 | break; |
| 127 | } |
| 128 | ret = del_file(&subEntry, &sonmp); |
| 129 | if( ret & ERROR_ONE) |
| 130 | break; |
| 131 | ret = 0; |
| 132 | } |
| 133 | } |
| 134 | FREE(&SubDir); |
| 135 | if (r == -2) |
| 136 | return ERROR_ONE; |
| 137 | if(ret) |
| 138 | return ret; |
| 139 | } |
| 140 | return del_entry(entry, mp); |
| 141 | } |
| 142 | |
| 143 | static void usage(int ret) NORETURN; |
| 144 | static void usage(int ret) |
| 145 | { |
| 146 | fprintf(stderr, |
| 147 | "Mtools version %s, dated %s\n", mversion, mdate); |
| 148 | fprintf(stderr, |
| 149 | "Usage: %s [-v] msdosfile [msdosfiles...]\n", progname); |
| 150 | exit(ret); |
| 151 | } |
| 152 | |
| 153 | void mdel(int argc, char **argv, int deltype) NORETURN; |
| 154 | void mdel(int argc, char **argv, int deltype) |
| 155 | { |
| 156 | Arg_t arg; |
| 157 | MainParam_t mp; |
| 158 | int c,i; |
| 159 | |
| 160 | arg.verbose = 0; |
| 161 | if(helpFlag(argc, argv)) |
| 162 | usage(0); |
| 163 | while ((c = getopt(argc, argv, "i:vh")) != EOF) { |
| 164 | switch (c) { |
| 165 | case 'i': |
| 166 | set_cmd_line_image(optarg); |
| 167 | break; |
| 168 | case 'v': |
| 169 | arg.verbose = 1; |
| 170 | break; |
| 171 | case 'h': |
| 172 | usage(0); |
| 173 | default: |
| 174 | usage(1); |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | if(argc == optind) |
| 179 | usage(1); |
| 180 | |
| 181 | init_mp(&mp); |
| 182 | mp.callback = del_file; |
| 183 | mp.arg = (void *) &arg; |
| 184 | mp.openflags = O_RDWR; |
| 185 | arg.deltype = deltype; |
| 186 | switch(deltype){ |
| 187 | case 0: |
| 188 | mp.lookupflags = ACCEPT_PLAIN; /* mdel */ |
| 189 | break; |
| 190 | case 1: |
| 191 | mp.lookupflags = ACCEPT_DIR; /* mrd */ |
| 192 | break; |
| 193 | case 2: |
| 194 | mp.lookupflags = ACCEPT_DIR | ACCEPT_PLAIN; /* mdeltree */ |
| 195 | break; |
| 196 | } |
| 197 | mp.lookupflags |= NO_DOTS; |
| 198 | for(i=optind;i<argc;i++) { |
| 199 | size_t b, l; |
| 200 | if(argv[i][0] && argv[i][1] == ':') |
| 201 | b = 2; |
| 202 | else |
| 203 | b = 0; |
| 204 | l = strlen(argv[i]+b); |
| 205 | if(l > 1 && argv[i][b+l-1] == '/') |
| 206 | argv[i][b+l-1] = '\0'; |
| 207 | } |
| 208 | |
| 209 | exit(main_loop(&mp, argv + optind, argc - optind)); |
| 210 | } |