xref: /minix/sys/lib/libsa/ls.c (revision 84d9c625)
1 /* $NetBSD: ls.c,v 1.4 2012/03/02 12:08:44 tsutsui 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 <sys/stat.h>
89 #include <lib/libkern/libkern.h>
90 
91 void
92 ls(const char *path, void (*funcp)(char* arg))
93 {
94 	int             fd;
95 	struct stat     sb;
96 	size_t          size = -1;
97 	const char	*fname = 0;
98 	char		*p = NULL;
99 	struct open_file *f;
100 
101 	if ((fd = open(path, 0)) < 0
102 	    || fstat(fd, &sb) < 0
103 	    || (sb.st_mode & S_IFMT) != S_IFDIR) {
104 		/* Path supplied isn't a directory, open parent
105 		   directory and list matching files. */
106 		if (fd >= 0)
107 			close(fd);
108 		fname = strrchr(path, '/');
109 		if (fname) {
110 			size = fname - path;
111 			fname++;
112 			p = alloc(size + 1);
113 			if (!p)
114 				goto out;
115 			memcpy(p, path, size);
116 			p[size] = 0;
117 			fd = open(p, 0);
118 		} else {
119 			fd = open("", 0);
120 			fname = path;
121 		}
122 
123 		if (fd < 0) {
124 			printf("ls: %s\n", strerror(errno));
125 			return;
126 		}
127 		if (fstat(fd, &sb) < 0) {
128 			printf("stat: %s\n", strerror(errno));
129 			goto out;
130 		}
131 		if ((sb.st_mode & S_IFMT) != S_IFDIR) {
132 			printf("%s: %s\n", path, strerror(ENOTDIR));
133 			goto out;
134 		}
135 	}
136 
137 	f = &files[fd];
138 
139 #if !defined(LIBSA_NO_FD_CHECKING)
140 	if ((unsigned int)fd >= SOPEN_MAX || f->f_flags == 0) {
141 		errno = EBADF;
142 		goto out;
143 	}
144 #endif
145 
146 #if !defined(LIBSA_NO_RAW_ACCESS)
147 	/* operation not defined on raw devices */
148 	if (f->f_flags & F_RAW) {
149 		errno = EOPNOTSUPP;
150 		goto out;
151 	}
152 #endif
153 
154 	if (FS_LS(f->f_ops) != NULL)
155 		FS_LS(f->f_ops)(f, fname, funcp, p);
156 	else
157 		printf("no ls support for this file system\n");
158 
159 out:
160 	/* LSC: MINIX Modification for correct glob support, beware! */
161 	if (p != NULL)
162 		dealloc(p, size + 1);
163 	close(fd);
164 }
165