sys/lib/libsa/ls.c

   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 }