Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 1 | /* Copyright 1997,2000-2002,2009 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 | * mdu.c: |
| 18 | * Display the space occupied by an MSDOS directory |
| 19 | */ |
| 20 | |
| 21 | #include "sysincludes.h" |
| 22 | #include "msdos.h" |
| 23 | #include "vfat.h" |
| 24 | #include "mtools.h" |
| 25 | #include "file.h" |
| 26 | #include "mainloop.h" |
| 27 | #include "fs.h" |
| 28 | #include "codepage.h" |
| 29 | |
| 30 | |
| 31 | typedef struct Arg_t { |
| 32 | int all; |
| 33 | int inDir; |
| 34 | int summary; |
| 35 | struct Arg_t *parent; |
| 36 | char *target; |
| 37 | char *path; |
| 38 | unsigned int blocks; |
| 39 | MainParam_t mp; |
| 40 | } Arg_t; |
| 41 | |
| 42 | static void usage(int ret) NORETURN; |
| 43 | static void usage(int ret) |
| 44 | { |
| 45 | fprintf(stderr, "Mtools version %s, dated %s\n", |
| 46 | mversion, mdate); |
| 47 | fprintf(stderr, "Usage: %s: msdosdirectory\n", |
| 48 | progname); |
| 49 | exit(ret); |
| 50 | } |
| 51 | |
| 52 | static int file_mdu(direntry_t *entry, MainParam_t *mp) |
| 53 | { |
| 54 | unsigned int blocks; |
| 55 | Arg_t * arg = (Arg_t *) (mp->arg); |
| 56 | |
| 57 | blocks = countBlocks(entry->Dir,getStart(entry->Dir, &entry->dir)); |
| 58 | if(arg->all || !arg->inDir) { |
| 59 | fprintPwd(stdout, entry,0); |
| 60 | printf(" %d\n", blocks); |
| 61 | } |
| 62 | arg->blocks += blocks; |
| 63 | return GOT_ONE; |
| 64 | } |
| 65 | |
| 66 | |
| 67 | static int dir_mdu(direntry_t *entry, MainParam_t *mp) |
| 68 | { |
| 69 | Arg_t *parentArg = (Arg_t *) (mp->arg); |
| 70 | Arg_t arg; |
| 71 | int ret; |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 72 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 73 | arg = *parentArg; |
| 74 | arg.mp.arg = (void *) &arg; |
| 75 | arg.parent = parentArg; |
| 76 | arg.inDir = 1; |
| 77 | |
| 78 | /* account for the space occupied by the directory itself */ |
| 79 | if(!isRootDir(entry->Dir)) { |
| 80 | arg.blocks = countBlocks(entry->Dir, |
| 81 | getStart(entry->Dir, &entry->dir)); |
| 82 | } else { |
| 83 | arg.blocks = 0; |
| 84 | } |
| 85 | |
| 86 | /* recursion */ |
| 87 | ret = mp->loop(mp->File, &arg.mp, "*"); |
| 88 | if(!arg.summary || !parentArg->inDir) { |
| 89 | fprintPwd(stdout, entry,0); |
| 90 | printf(" %d\n", arg.blocks); |
| 91 | } |
| 92 | arg.parent->blocks += arg.blocks; |
| 93 | return ret; |
| 94 | } |
| 95 | |
| 96 | void mdu(int argc, char **argv, int type UNUSEDP) NORETURN; |
| 97 | void mdu(int argc, char **argv, int type UNUSEDP) |
| 98 | { |
| 99 | Arg_t arg; |
| 100 | int c; |
| 101 | |
| 102 | arg.all = 0; |
| 103 | arg.inDir = 0; |
| 104 | arg.summary = 0; |
| 105 | if(helpFlag(argc, argv)) |
| 106 | usage(0); |
| 107 | while ((c = getopt(argc, argv, "i:ash")) != EOF) { |
| 108 | switch (c) { |
| 109 | case 'i': |
| 110 | set_cmd_line_image(optarg); |
| 111 | break; |
| 112 | case 'a': |
| 113 | arg.all = 1; |
| 114 | break; |
| 115 | case 's': |
| 116 | arg.summary = 1; |
| 117 | break; |
| 118 | case 'h': |
| 119 | usage(0); |
| 120 | case '?': |
| 121 | usage(1); |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | if (optind >= argc) |
| 126 | usage(1); |
| 127 | |
| 128 | if(arg.summary && arg.all) { |
| 129 | fprintf(stderr,"-a and -s options are mutually exclusive\n"); |
| 130 | usage(1); |
| 131 | } |
| 132 | |
| 133 | init_mp(&arg.mp); |
| 134 | arg.mp.callback = file_mdu; |
| 135 | arg.mp.openflags = O_RDONLY; |
| 136 | arg.mp.dirCallback = dir_mdu; |
| 137 | |
| 138 | arg.mp.arg = (void *) &arg; |
| 139 | arg.mp.lookupflags = ACCEPT_PLAIN | ACCEPT_DIR | DO_OPEN_DIRS | NO_DOTS; |
| 140 | exit(main_loop(&arg.mp, argv + optind, argc - optind)); |
| 141 | } |