projects / dragonfly.git / blame
| Commit | Line | Data |
|---|---|---|
| 984263bc MD |
1 | /* |
| 2 | * Copyright (c) 1989, 1991, 1993, 1995 | |
| 3 | * The Regents of the University of California. All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 0f0f9bbd | 13 | * 3. Neither the name of the University nor the names of its contributors |
| 984263bc MD |
14 | * may be used to endorse or promote products derived from this software |
| 15 | * without specific prior written permission. | |
| 16 | * | |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 27 | * SUCH DAMAGE. | |
| 28 | * | |
| 29 | * $FreeBSD: src/lib/libc/gen/getcwd.c,v 1.18 1999/09/28 13:24:13 marcel Exp $ | |
| 1de703da MD |
30 | * |
| 31 | * @(#)getcwd.c 8.5 (Berkeley) 2/7/95 | |
| 984263bc MD |
32 | */ |
| 33 | ||
| 984263bc | 34 | #include <sys/param.h> |
| 8289fd98 | 35 | #include <errno.h> |
| 984263bc | 36 | #include <stdlib.h> |
| 8289fd98 | 37 | #include <string.h> |
| 984263bc | 38 | #include <unistd.h> |
| 984263bc | 39 | |
| f6625211 JS |
40 | int __getcwd(char *pt, size_t size); |
| 41 | ||
| 984263bc | 42 | char * |
| f6625211 | 43 | getcwd(char *pt, size_t size) |
| 984263bc | 44 | { |
| 4763229c | 45 | int allocated = 0, ret; |
| 984263bc MD |
46 | |
| 47 | /* | |
| 48 | * If no buffer specified by the user, allocate one as necessary. | |
| 984263bc | 49 | */ |
| 4763229c JS |
50 | if (pt == NULL) { |
| 51 | size = MAXPATHLEN; | |
| 52 | if ((pt = malloc(MAXPATHLEN)) == NULL) | |
| 53 | return(NULL); | |
| 54 | allocated = 1; | |
| 984263bc | 55 | } |
| 4763229c JS |
56 | ret = __getcwd(pt, size); |
| 57 | if (ret == 0) | |
| 58 | return (pt); | |
| 59 | if (allocated) | |
| 984263bc | 60 | free(pt); |
| 984263bc MD |
61 | return (NULL); |
| 62 | } | |
| 8289fd98 SW |
63 | |
| 64 | char * | |
| 65 | getwd(char *buf) | |
| 66 | { | |
| 67 | char *p; | |
| 68 | ||
| ecac59fd | 69 | if ((p = getcwd(buf, MAXPATHLEN)) != NULL) |
| 8289fd98 SW |
70 | return(p); |
| 71 | strcpy(buf, strerror(errno)); | |
| 72 | return(NULL); | |
| 73 | } |