Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame^] | 1 | /* Copyright 1986-1992 Emmet P. Gray. |
| 2 | * Copyright 1996-2002,2007-2009 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 | * mmd.c |
| 19 | * Makes an MSDOS directory |
| 20 | */ |
| 21 | |
| 22 | |
| 23 | #include "sysincludes.h" |
| 24 | #include "msdos.h" |
| 25 | #include "mtools.h" |
| 26 | #include "vfat.h" |
| 27 | #include "mainloop.h" |
| 28 | #include "plain_io.h" |
| 29 | #include "nameclash.h" |
| 30 | #include "file.h" |
| 31 | #include "fs.h" |
| 32 | |
| 33 | /* |
| 34 | * Preserve the file modification times after the fclose() |
| 35 | */ |
| 36 | |
| 37 | typedef struct Arg_t { |
| 38 | char *target; |
| 39 | MainParam_t mp; |
| 40 | |
| 41 | Stream_t *SrcDir; |
| 42 | int entry; |
| 43 | ClashHandling_t ch; |
| 44 | Stream_t *targetDir; |
| 45 | } Arg_t; |
| 46 | |
| 47 | |
| 48 | typedef struct CreateArg_t { |
| 49 | Stream_t *Dir; |
| 50 | Stream_t *NewDir; |
| 51 | unsigned char attr; |
| 52 | time_t mtime; |
| 53 | } CreateArg_t; |
| 54 | |
| 55 | /* |
| 56 | * Open the named file for read, create the cluster chain, return the |
| 57 | * directory structure or NULL on error. |
| 58 | */ |
| 59 | static int makeit(dos_name_t *dosname, |
| 60 | char *longname UNUSEDP, |
| 61 | void *arg0, |
| 62 | direntry_t *targetEntry) |
| 63 | { |
| 64 | Stream_t *Target; |
| 65 | CreateArg_t *arg = (CreateArg_t *) arg0; |
| 66 | int fat; |
| 67 | direntry_t subEntry; |
| 68 | |
| 69 | /* will it fit? At least one cluster must be free */ |
| 70 | if (!getfreeMinClusters(targetEntry->Dir, 1)) |
| 71 | return -1; |
| 72 | |
| 73 | mk_entry(dosname, ATTR_DIR, 1, 0, arg->mtime, &targetEntry->dir); |
| 74 | Target = OpenFileByDirentry(targetEntry); |
| 75 | if(!Target){ |
| 76 | fprintf(stderr,"Could not open Target\n"); |
| 77 | return -1; |
| 78 | } |
| 79 | |
| 80 | /* this allocates the first cluster for our directory */ |
| 81 | |
| 82 | initializeDirentry(&subEntry, Target); |
| 83 | |
| 84 | subEntry.entry = 1; |
| 85 | GET_DATA(targetEntry->Dir, 0, 0, 0, &fat); |
| 86 | if (fat == fat32RootCluster(targetEntry->Dir)) { |
| 87 | fat = 0; |
| 88 | } |
| 89 | mk_entry_from_base(".. ", ATTR_DIR, fat, 0, arg->mtime, &subEntry.dir); |
| 90 | dir_write(&subEntry); |
| 91 | |
| 92 | FLUSH((Stream_t *) Target); |
| 93 | subEntry.entry = 0; |
| 94 | GET_DATA(Target, 0, 0, 0, &fat); |
| 95 | mk_entry_from_base(". ", ATTR_DIR, fat, 0, arg->mtime, &subEntry.dir); |
| 96 | dir_write(&subEntry); |
| 97 | |
| 98 | mk_entry(dosname, ATTR_DIR | arg->attr, fat, 0, arg->mtime, |
| 99 | &targetEntry->dir); |
| 100 | arg->NewDir = Target; |
| 101 | return 0; |
| 102 | } |
| 103 | |
| 104 | |
| 105 | static void usage(int ret) NORETURN; |
| 106 | static void usage(int ret) |
| 107 | { |
| 108 | fprintf(stderr, |
| 109 | "Mtools version %s, dated %s\n", mversion, mdate); |
| 110 | fprintf(stderr, |
| 111 | "Usage: %s [-D clash_option] file targetfile\n", progname); |
| 112 | fprintf(stderr, |
| 113 | " %s [-D clash_option] file [files...] target_directory\n", |
| 114 | progname); |
| 115 | exit(ret); |
| 116 | } |
| 117 | |
| 118 | Stream_t *createDir(Stream_t *Dir, const char *filename, ClashHandling_t *ch, |
| 119 | unsigned char attr, time_t mtime) |
| 120 | { |
| 121 | CreateArg_t arg; |
| 122 | int ret; |
| 123 | |
| 124 | arg.Dir = Dir; |
| 125 | arg.attr = attr; |
| 126 | arg.mtime = mtime; |
| 127 | |
| 128 | if (!getfreeMinClusters(Dir, 1)) |
| 129 | return NULL; |
| 130 | |
| 131 | ret = mwrite_one(Dir, filename, 0, makeit, &arg, ch); |
| 132 | if(ret < 1) |
| 133 | return NULL; |
| 134 | else |
| 135 | return arg.NewDir; |
| 136 | } |
| 137 | |
| 138 | static int createDirCallback(direntry_t *entry UNUSEDP, MainParam_t *mp) |
| 139 | { |
| 140 | Stream_t *ret; |
| 141 | time_t now; |
| 142 | |
| 143 | ret = createDir(mp->File, mp->targetName, &((Arg_t *)(mp->arg))->ch, |
| 144 | ATTR_DIR, getTimeNow(&now)); |
| 145 | if(ret == NULL) |
| 146 | return ERROR_ONE; |
| 147 | else { |
| 148 | FREE(&ret); |
| 149 | return GOT_ONE; |
| 150 | } |
| 151 | |
| 152 | } |
| 153 | |
| 154 | void mmd(int argc, char **argv, int type UNUSEDP) NORETURN; |
| 155 | void mmd(int argc, char **argv, int type UNUSEDP) |
| 156 | { |
| 157 | Arg_t arg; |
| 158 | int c; |
| 159 | |
| 160 | /* get command line options */ |
| 161 | |
| 162 | init_clash_handling(& arg.ch); |
| 163 | |
| 164 | /* get command line options */ |
| 165 | if(helpFlag(argc, argv)) |
| 166 | usage(0); |
| 167 | while ((c = getopt(argc, argv, "i:D:oh")) != EOF) { |
| 168 | switch (c) { |
| 169 | case 'i': |
| 170 | set_cmd_line_image(optarg); |
| 171 | break; |
| 172 | case '?': |
| 173 | usage(1); |
| 174 | case 'o': |
| 175 | handle_clash_options(&arg.ch, (char) c); |
| 176 | break; |
| 177 | case 'D': |
| 178 | if(handle_clash_options(&arg.ch, *optarg)) |
| 179 | usage(1); |
| 180 | break; |
| 181 | case 'h': |
| 182 | usage(0); |
| 183 | default: |
| 184 | usage(1); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | if (argc - optind < 1) |
| 189 | usage(1); |
| 190 | |
| 191 | init_mp(&arg.mp); |
| 192 | arg.mp.arg = (void *) &arg; |
| 193 | arg.mp.openflags = O_RDWR; |
| 194 | arg.mp.callback = createDirCallback; |
| 195 | arg.mp.lookupflags = OPEN_PARENT | DO_OPEN_DIRS; |
| 196 | exit(main_loop(&arg.mp, argv + optind, argc - optind)); |
| 197 | } |