1 /* $NetBSD: ls.c,v 1.5 2014/03/20 03:13:18 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2011
5 * The NetBSD Foundation, Inc. All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Martin Husemann.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 /*
33 * Copyright (c) 1993
34 * The Regents of the University of California. All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. Neither the name of the University nor the names of its contributors
45 * may be used to endorse or promote products derived from this software
46 * without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 */
60
61 /*
62 * Copyright (c) 1996
63 * Matthias Drochner. All rights reserved.
64 *
65 * Redistribution and use in source and binary forms, with or without
66 * modification, are permitted provided that the following conditions
67 * are met:
68 * 1. Redistributions of source code must retain the above copyright
69 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in the
72 * documentation and/or other materials provided with the distribution.
73 *
74 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
75 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
76 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
77 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
78 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
79 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
80 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
81 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
82 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
83 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
84 */
85
86
87 #include "stand.h"
88 #include "ls.h"
89 #include <sys/stat.h>
90 #include <lib/libkern/libkern.h>
91
92 void
ls(const char * path)93 ls(const char *path)
94 {
95 int fd;
96 struct stat sb;
97 size_t size;
98 const char *fname = 0;
99 char *p;
100 struct open_file *f;
101
102 if ((fd = open(path, 0)) < 0
103 || fstat(fd, &sb) < 0
104 || (sb.st_mode & S_IFMT) != S_IFDIR) {
105 /* Path supplied isn't a directory, open parent
106 directory and list matching files. */
107 if (fd >= 0)
108 close(fd);
109 fname = strrchr(path, '/');
110 if (fname) {
111 size = fname - path;
112 fname++;
113 p = alloc(size + 1);
114 if (!p)
115 goto out;
116 memcpy(p, path, size);
117 p[size] = 0;
118 fd = open(p, 0);
119 dealloc(p, size + 1);
120 } else {
121 fd = open("", 0);
122 fname = path;
123 }
124
125 if (fd < 0) {
126 printf("ls: %s\n", strerror(errno));
127 return;
128 }
129 if (fstat(fd, &sb) < 0) {
130 printf("stat: %s\n", strerror(errno));
131 goto out;
132 }
133 if ((sb.st_mode & S_IFMT) != S_IFDIR) {
134 printf("%s: %s\n", path, strerror(ENOTDIR));
135 goto out;
136 }
137 }
138
139 f = &files[fd];
140
141 #if !defined(LIBSA_NO_FD_CHECKING)
142 if ((unsigned int)fd >= SOPEN_MAX || f->f_flags == 0) {
143 errno = EBADF;
144 goto out;
145 }
146 #endif
147
148 #if !defined(LIBSA_NO_RAW_ACCESS)
149 /* operation not defined on raw devices */
150 if (f->f_flags & F_RAW) {
151 errno = EOPNOTSUPP;
152 goto out;
153 }
154 #endif
155
156 if (FS_LS(f->f_ops) != NULL)
157 FS_LS(f->f_ops)(f, fname);
158 else
159 printf("no ls support for this file system\n");
160
161 out:
162 close(fd);
163 }
164
165 struct lsentry {
166 struct lsentry *e_next;
167 uint32_t e_ino;
168 const char *e_type;
169 char e_name[1];
170 };
171
172 __compactcall void
lsadd(lsentry_t ** names,const char * pattern,const char * name,size_t namelen,uint32_t ino,const char * type)173 lsadd(lsentry_t **names, const char *pattern, const char *name, size_t namelen,
174 uint32_t ino, const char *type)
175 {
176 lsentry_t *n, **np;
177
178 if (pattern && !fnmatch(name, pattern))
179 return;
180
181 n = alloc(sizeof *n + namelen);
182 if (!n) {
183 printf("%d: %.*s (%s)\n", ino, (int)namelen, name, type);
184 return;
185 }
186
187 n->e_ino = ino;
188 n->e_type = type;
189 memcpy(n->e_name, name, namelen);
190 n->e_name[namelen] = '\0';
191
192 for (np = names; *np; np = &(*np)->e_next) {
193 if (strcmp(n->e_name, (*np)->e_name) < 0)
194 break;
195 }
196 n->e_next = *np;
197 *np = n;
198 }
199
200 __compactcall void
lsprint(lsentry_t * names)201 lsprint(lsentry_t *names) {
202 if (!names) {
203 printf("not found\n");
204 return;
205 }
206 do {
207 lsentry_t *n = names;
208 printf("%d: %s (%s)\n", n->e_ino, n->e_name, n->e_type);
209 names = n->e_next;
210 } while (names);
211 }
212
213 __compactcall void
lsfree(lsentry_t * names)214 lsfree(lsentry_t *names) {
215 if (!names)
216 return;
217 do {
218 lsentry_t *n = names;
219 names = n->e_next;
220 dealloc(n, 0);
221 } while (names);
222 }
223
224 __compactcall void
lsunsup(const char * name)225 lsunsup(const char *name) {
226 printf("The ls command is not currently supported for %s\n", name);
227 }
228