diff options
Diffstat (limited to 'mdel.c')
| -rw-r--r-- | mdel.c | 208 |
1 files changed, 208 insertions, 0 deletions
@@ -0,0 +1,208 @@ +/* Copyright 1986-1992 Emmet P. Gray. + * Copyright 1996-2002,2005,2008,2009 Alain Knaff. + * This file is part of mtools. + * + * Mtools is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * Mtools is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with Mtools. If not, see <http://www.gnu.org/licenses/>. + * + * mdel.c + * Delete an MSDOS file + * + */ + +#include "sysincludes.h" +#include "msdos.h" +#include "mtools.h" +#include "stream.h" +#include "mainloop.h" +#include "fs.h" +#include "file.h" +#include "file_name.h" + +typedef struct Arg_t { + int deltype; + int verbose; +} Arg_t; + +/** + * Wiped the given entry + */ +void wipeEntry(direntry_t *entry) +{ + direntry_t longNameEntry; + int i; + initializeDirentry(&longNameEntry, entry->Dir); + for(i=entry->beginSlot; i< entry->endSlot; i++) { + int error; + longNameEntry.entry=i; + dir_read(&longNameEntry, &error); + if(error) + break; + longNameEntry.dir.name[0] = (char) DELMARK; + dir_write(&longNameEntry); + } + entry->dir.name[0] = (char) DELMARK; + dir_write(entry); +} + +static int del_entry(direntry_t *entry, MainParam_t *mp) +{ + Arg_t *arg=(Arg_t *) mp->arg; + + if(got_signal) + return ERROR_ONE; + + if(entry->entry == -3) { + fprintf(stderr, "Cannot remove root directory\n"); + return ERROR_ONE; + } + + if (arg->verbose) { + fprintf(stderr,"Removing "); + fprintPwd(stderr, entry,0); + fputc('\n', stderr); + } + + if (entry->dir.attr & (ATTR_READONLY | ATTR_SYSTEM)) { + char tmp[4*MAX_VNAMELEN+1]; + wchar_to_native(entry->name,tmp,MAX_VNAMELEN); + if (ask_confirmation("%s: \"%s\" is read only, erase anyway (y/n) ? ", + progname, tmp)) + return ERROR_ONE; + } + if (fatFreeWithDirentry(entry)) + return ERROR_ONE; + + wipeEntry(entry); + return GOT_ONE; +} + +static int del_file(direntry_t *entry, MainParam_t *mp) +{ + char shortname[13]; + direntry_t subEntry; + Stream_t *SubDir; + Arg_t *arg = (Arg_t *) mp->arg; + MainParam_t sonmp; + int ret; + int r; + + sonmp = *mp; + sonmp.arg = mp->arg; + + r = 0; + if (IS_DIR(entry)){ + /* a directory */ + SubDir = OpenFileByDirentry(entry); + initializeDirentry(&subEntry, SubDir); + ret = 0; + while((r=vfat_lookup(&subEntry, "*", 1, + ACCEPT_DIR | ACCEPT_PLAIN, + shortname, NULL)) == 0 ){ + if(shortname[0] != DELMARK && + shortname[0] && + shortname[0] != '.' ){ + if(arg->deltype != 2){ + fprintf(stderr, + "Directory "); + fprintPwd(stderr, entry,0); + fprintf(stderr," non empty\n"); + ret = ERROR_ONE; + break; + } + if(got_signal) { + ret = ERROR_ONE; + break; + } + ret = del_file(&subEntry, &sonmp); + if( ret & ERROR_ONE) + break; + ret = 0; + } + } + FREE(&SubDir); + if (r == -2) + return ERROR_ONE; + if(ret) + return ret; + } + return del_entry(entry, mp); +} + +static void usage(int ret) NORETURN; +static void usage(int ret) +{ + fprintf(stderr, + "Mtools version %s, dated %s\n", mversion, mdate); + fprintf(stderr, + "Usage: %s [-v] msdosfile [msdosfiles...]\n", progname); + exit(ret); +} + +void mdel(int argc, char **argv, int deltype) +{ + Arg_t arg; + MainParam_t mp; + int c,i; + + arg.verbose = 0; + if(helpFlag(argc, argv)) + usage(0); + while ((c = getopt(argc, argv, "i:vh")) != EOF) { + switch (c) { + case 'i': + set_cmd_line_image(optarg); + break; + case 'v': + arg.verbose = 1; + break; + case 'h': + usage(0); + default: + usage(1); + } + } + + if(argc == optind) + usage(1); + + init_mp(&mp); + mp.callback = del_file; + mp.arg = (void *) &arg; + mp.openflags = O_RDWR; + arg.deltype = deltype; + switch(deltype){ + case 0: + mp.lookupflags = ACCEPT_PLAIN; /* mdel */ + break; + case 1: + mp.lookupflags = ACCEPT_DIR; /* mrd */ + break; + case 2: + mp.lookupflags = ACCEPT_DIR | ACCEPT_PLAIN; /* mdeltree */ + break; + } + mp.lookupflags |= NO_DOTS; + for(i=optind;i<argc;i++) { + int b,l; + if(argv[i][0] && argv[i][1] == ':') + b = 2; + else + b = 0; + l = strlen(argv[i]+b); + if(l > 1 && argv[i][b+l-1] == '/') + argv[i][b+l-1] = '\0'; + } + + exit(main_loop(&mp, argv + optind, argc - optind)); +} |