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 */
wipeEntry(direntry_t * entry)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
del_entry(direntry_t * entry,MainParam_t * mp)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
del_file(direntry_t * entry,MainParam_t * mp)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;
usage(int ret)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;
mdel(int argc,char ** argv,int deltype)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 }
211