Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 1 | /* Copyright 1999,2001,2002,2009 Alain Knaff. |
| 2 | * This file is part of mtools. |
| 3 | * |
| 4 | * Mtools is free software: you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation, either version 3 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * Mtools is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with Mtools. If not, see <http://www.gnu.org/licenses/>. |
| 16 | * |
| 17 | * Test program for doctoring the fat |
| 18 | */ |
| 19 | |
| 20 | |
| 21 | #include "sysincludes.h" |
| 22 | #include "msdos.h" |
| 23 | #include "mtools.h" |
| 24 | #include "vfat.h" |
| 25 | #include "mainloop.h" |
| 26 | #include "plain_io.h" |
| 27 | #include "nameclash.h" |
| 28 | #include "file.h" |
| 29 | #include "fs.h" |
| 30 | #include "fsP.h" |
| 31 | |
| 32 | typedef struct Arg_t { |
| 33 | char *target; |
| 34 | MainParam_t mp; |
| 35 | ClashHandling_t ch; |
| 36 | Stream_t *sourcefile; |
| 37 | uint32_t fat; |
| 38 | int markbad; |
| 39 | int setsize; |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 40 | uint32_t size; |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 41 | Fs_t *Fs; |
| 42 | } Arg_t; |
| 43 | |
| 44 | static int dos_doctorfat(direntry_t *entry, MainParam_t *mp) |
| 45 | { |
| 46 | Fs_t *Fs = getFs(mp->File); |
| 47 | Arg_t *arg=(Arg_t *) mp->arg; |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 48 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 49 | if(!arg->markbad && entry->entry != -3) { |
| 50 | /* if not root directory, change it */ |
| 51 | set_word(entry->dir.start, arg->fat & 0xffff); |
| 52 | set_word(entry->dir.startHi, arg->fat >> 16); |
| 53 | if(arg->setsize) |
| 54 | set_dword(entry->dir.size, arg->size); |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 55 | dir_write(entry); |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 56 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 57 | arg->Fs = Fs; |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 58 | return GOT_ONE; |
| 59 | } |
| 60 | |
| 61 | static int unix_doctorfat(MainParam_t *mp UNUSEDP) |
| 62 | { |
| 63 | fprintf(stderr,"File does not reside on a Dos fs\n"); |
| 64 | return ERROR_ONE; |
| 65 | } |
| 66 | |
| 67 | static void usage(int ret) NORETURN; |
| 68 | static void usage(int ret) |
| 69 | { |
| 70 | fprintf(stderr, |
| 71 | "Mtools version %s, dated %s\n", mversion, mdate); |
| 72 | fprintf(stderr, |
| 73 | "Usage: [-b] %s file fat\n", progname); |
| 74 | exit(ret); |
| 75 | } |
| 76 | |
| 77 | void mdoctorfat(int argc, char **argv, int mtype UNUSEDP) NORETURN; |
| 78 | void mdoctorfat(int argc, char **argv, int mtype UNUSEDP) |
| 79 | { |
| 80 | Arg_t arg; |
| 81 | int c, ret; |
| 82 | unsigned int address; |
| 83 | unsigned int begin, end; |
| 84 | char *number, *eptr; |
| 85 | int i; |
| 86 | unsigned int offset; |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 87 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 88 | /* get command line options */ |
| 89 | |
| 90 | init_clash_handling(& arg.ch); |
| 91 | |
| 92 | offset = 0; |
| 93 | |
| 94 | arg.markbad = 0; |
| 95 | arg.setsize = 0; |
| 96 | |
| 97 | /* get command line options */ |
| 98 | if(helpFlag(argc, argv)) |
| 99 | usage(0); |
| 100 | while ((c = getopt(argc, argv, "i:bo:s:h")) != EOF) { |
| 101 | char *endptr = NULL; |
| 102 | errno=0; |
| 103 | switch (c) { |
| 104 | case 'i': |
| 105 | set_cmd_line_image(optarg); |
| 106 | break; |
| 107 | case 'b': |
| 108 | arg.markbad = 1; |
| 109 | break; |
| 110 | case 'o': |
| 111 | offset = strtoui(optarg,&endptr,0); |
| 112 | break; |
| 113 | case 's': |
| 114 | arg.setsize=1; |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 115 | arg.size = strtou32(optarg,&endptr,0); |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 116 | break; |
| 117 | case 'h': |
| 118 | usage(0); |
| 119 | case '?': |
| 120 | usage(1); |
| 121 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 122 | check_number_parse_errno((char)c, optarg, endptr); |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 123 | } |
| 124 | |
| 125 | if (argc - optind < 2) |
| 126 | usage(1); |
| 127 | |
| 128 | |
| 129 | /* only 1 file to copy... */ |
| 130 | init_mp(&arg.mp); |
| 131 | arg.mp.arg = (void *) &arg; |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 132 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 133 | arg.mp.callback = dos_doctorfat; |
| 134 | arg.mp.unixcallback = unix_doctorfat; |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 135 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 136 | arg.mp.lookupflags = ACCEPT_PLAIN | ACCEPT_DIR | DO_OPEN; |
| 137 | arg.mp.openflags = O_RDWR; |
| 138 | arg.fat = strtoui(argv[optind+1], 0, 0) + offset; |
| 139 | ret=main_loop(&arg.mp, argv + optind, 1); |
| 140 | if(ret) |
| 141 | exit(ret); |
| 142 | address = 0; |
| 143 | for(i=optind+1; i < argc; i++) { |
| 144 | unsigned int j; |
| 145 | number = argv[i]; |
| 146 | if (*number == '<') { |
| 147 | number++; |
| 148 | } |
| 149 | begin = strtoui(number, &eptr, 0); |
| 150 | if (eptr && *eptr == '-') { |
| 151 | number = eptr+1; |
| 152 | end = strtoui(number, &eptr, 0); |
| 153 | } else { |
| 154 | end = begin; |
| 155 | } |
| 156 | if (eptr == number) { |
| 157 | fprintf(stderr, "Not a number: %s\n", number); |
| 158 | exit(-1); |
| 159 | } |
| 160 | |
| 161 | if (eptr && *eptr == '>') { |
| 162 | eptr++; |
| 163 | } |
| 164 | if (eptr && *eptr) { |
| 165 | fprintf(stderr, "Not a number: %s\n", eptr); |
| 166 | exit(-1); |
| 167 | } |
| 168 | |
| 169 | for (j=begin; j <= end; j++) { |
| 170 | if(arg.markbad) { |
| 171 | arg.Fs->fat_encode(arg.Fs, j+offset, arg.Fs->last_fat ^ 6 ^ 8); |
| 172 | } else { |
| 173 | if(address) { |
| 174 | arg.Fs->fat_encode(arg.Fs, address, j+offset); |
| 175 | } |
| 176 | address = j+offset; |
| 177 | } |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | if (address && !arg.markbad) { |
| 182 | arg.Fs->fat_encode(arg.Fs, address, arg.Fs->end_fat); |
| 183 | } |
| 184 | |
| 185 | exit(ret); |
| 186 | } |