source: trunk/minix/commands/i386/mtools-3.9.7/mdel.c@ 12

Last change on this file since 12 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a
File size: 3.2 KB
RevLine 
[9]1/*
2 * mdel.c
3 * Delete an MSDOS file
4 *
5 */
6
7#include "sysincludes.h"
8#include "msdos.h"
9#include "mtools.h"
10#include "stream.h"
11#include "mainloop.h"
12#include "fs.h"
13#include "file.h"
14
15typedef struct Arg_t {
16 int deltype;
17 int verbose;
18} Arg_t;
19
20static int del_entry(direntry_t *entry, MainParam_t *mp)
21{
22 Arg_t *arg=(Arg_t *) mp->arg;
23 direntry_t longNameEntry;
24 int i;
25
26 if(got_signal)
27 return ERROR_ONE;
28
29 if(entry->entry == -3) {
30 fprintf(stderr, "Cannot remove root directory\n");
31 return ERROR_ONE;
32 }
33
34 if (arg->verbose) {
35 fprintf(stderr,"Removing ");
36 fprintPwd(stdout, entry,0);
37 putchar('\n');
38 }
39
40 if ((entry->dir.attr & (ATTR_READONLY | ATTR_SYSTEM)) &&
41 (ask_confirmation("%s: \"%s\" is read only, erase anyway (y/n) ? ",
42 progname, entry->name)))
43 return ERROR_ONE;
44 if (fatFreeWithDirentry(entry))
45 return ERROR_ONE;
46
47 initializeDirentry(&longNameEntry, entry->Dir);
48 for(i=entry->beginSlot; i< entry->endSlot; i++) {
49 int error;
50 longNameEntry.entry=i;
51 dir_read(&longNameEntry, &error);
52 if(error)
53 break;
54 longNameEntry.dir.name[0] = (char) DELMARK;
55 dir_write(&longNameEntry);
56 }
57
58 entry->dir.name[0] = (char) DELMARK;
59 dir_write(entry);
60 return GOT_ONE;
61}
62
63static int del_file(direntry_t *entry, MainParam_t *mp)
64{
65 char shortname[13];
66 direntry_t subEntry;
67 Stream_t *SubDir;
68 Arg_t *arg = (Arg_t *) mp->arg;
69 MainParam_t sonmp;
70 int ret;
71 int r;
72
73 sonmp = *mp;
74 sonmp.arg = mp->arg;
75
76 r = 0;
77 if (IS_DIR(entry)){
78 /* a directory */
79 SubDir = OpenFileByDirentry(entry);
80 initializeDirentry(&subEntry, SubDir);
81 ret = 0;
82 while((r=vfat_lookup(&subEntry, "*", 1,
83 ACCEPT_DIR | ACCEPT_PLAIN,
84 shortname, NULL)) == 0 ){
85 if(shortname[0] != DELMARK &&
86 shortname[0] &&
87 shortname[0] != '.' ){
88 if(arg->deltype != 2){
89 fprintf(stderr,
90 "Directory ");
91 fprintPwd(stderr, entry,0);
92 fprintf(stderr," non empty\n");
93 ret = ERROR_ONE;
94 break;
95 }
96 if(got_signal) {
97 ret = ERROR_ONE;
98 break;
99 }
100 ret = del_file(&subEntry, &sonmp);
101 if( ret & ERROR_ONE)
102 break;
103 ret = 0;
104 }
105 }
106 FREE(&SubDir);
107 if (r == -2)
108 return ERROR_ONE;
109 if(ret)
110 return ret;
111 }
112 return del_entry(entry, mp);
113}
114
115
116static void usage(void)
117{
118 fprintf(stderr,
119 "Mtools version %s, dated %s\n", mversion, mdate);
120 fprintf(stderr,
121 "Usage: %s [-v] msdosfile [msdosfiles...]\n"
122 "\t-v Verbose\n",
123 progname);
124 exit(1);
125}
126
127void mdel(int argc, char **argv, int deltype)
128{
129 Arg_t arg;
130 MainParam_t mp;
131 int c,i;
132
133 arg.verbose = 0;
134 while ((c = getopt(argc, argv, "v")) != EOF) {
135 switch (c) {
136 case 'v':
137 arg.verbose = 1;
138 break;
139 default:
140 usage();
141 }
142 }
143
144 if(argc == optind)
145 usage();
146
147 init_mp(&mp);
148 mp.callback = del_file;
149 mp.arg = (void *) &arg;
150 mp.openflags = O_RDWR;
151 arg.deltype = deltype;
152 switch(deltype){
153 case 0:
154 mp.lookupflags = ACCEPT_PLAIN; /* mdel */
155 break;
156 case 1:
157 mp.lookupflags = ACCEPT_DIR; /* mrd */
158 break;
159 case 2:
160 mp.lookupflags = ACCEPT_DIR | ACCEPT_PLAIN; /* mdeltree */
161 break;
162 }
163 mp.lookupflags |= NO_DOTS;
164 for(i=optind;i<argc;i++) {
165 int b,l;
166 b = skip_drive(argv[i]) - argv[i];
167 l = strlen(argv[i]+b);
168 if(l > 1 && argv[i][b+l-1] == '/')
169 argv[i][b+l-1] = '\0';
170 }
171
172 exit(main_loop(&mp, argv + optind, argc - optind));
173}
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