2 * Copyright (c) 2008 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * $DragonFly: src/sys/boot/common/rel_open.c,v 1.2 2008/09/04 17:30:52 swildner Exp $
39 #include "bootstrap.h"
43 COMMAND_SET(cd, "cd", "Change directory", command_chdir);
44 COMMAND_SET(optcd, "optcd",
45 "Change directory; ignore exit status", command_optchdir);
48 command_chdir(int ac, char **av)
53 result = chdir(getenv("base"));
55 result = chdir(av[1]);
57 sprintf(command_errbuf, "usage: cd [<directory>]");
64 command_optchdir(int ac, char **av)
67 chdir(getenv("base"));
71 sprintf(command_errbuf, "usage: optcd [<directory>]");
77 chdir(const char *path)
90 DirBase = strdup("/");
94 base = malloc(len + 2); /* room for trailing / */
95 bcopy(path, base, len + 1);
97 while (len && path[len-1] == '/')
99 dlen = strlen(DirBase);
100 base = malloc(dlen + len + 2); /* room for trailing / */
101 bcopy(DirBase, base, dlen);
102 bcopy(path, base + dlen, len);
103 base[dlen + len] = 0;
106 if (stat(base, &st) == 0 && S_ISDIR(st.st_mode)) {
107 p = b = w = s = base;
110 if (s - b == 2 && b[0] == '.' && b[1] == '.') {
123 if (s - b == 2 && b[0] == '.' && b[1] == '.')
125 while (w > base && w[-1] == '/')
136 sprintf(command_errbuf, "Unable to find directory");
142 COMMAND_SET(pwd, "pwd", "Get current directory", command_pwd);
145 command_pwd(int ac, char **av)
147 printf("%s\n", DirBase ? DirBase : "/");
152 rel_open(const char *path, char **abspathp, int flags)
158 DirBase = strdup("/");
160 if (path[0] != '/') {
161 ptr = malloc(strlen(DirBase) + strlen(path) + 1);
162 sprintf(ptr, "%s%s", DirBase, path);
163 fd = open(ptr, flags);
164 if (abspathp && fd >= 0)
171 fd = open(path, flags);
172 if (abspathp && fd >= 0)
173 *abspathp = strdup(path);
181 rel_stat(const char *path, struct stat *st)
187 DirBase = strdup("/");
189 if (path[0] != '/') {
190 ptr = malloc(strlen(DirBase) + strlen(path) + 1);
191 sprintf(ptr, "%s%s", DirBase, path);
195 res = stat(path, st);