Fix serious bug with "use chroot = no" option which caused "uid =" and "gid ="
[rsync/rsync.git] / lib / compat.c
... / ...
CommitLineData
1/*
2 Copyright (C) Andrew Tridgell 1998
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17*/
18
19/*
20 compatibility functions - replacing functions for platforms that don't
21 have them.
22
23 */
24#include "rsync.h"
25
26
27#ifndef HAVE_STRDUP
28 char *strdup(char *s)
29{
30 int l = strlen(s) + 1;
31 char *ret = (char *)malloc(l);
32 if (ret)
33 strcpy(ret,s);
34 return ret;
35}
36#endif
37
38#ifndef HAVE_GETCWD
39 char *getcwd(char *buf, int size)
40{
41 return getwd(buf);
42}
43#endif
44
45
46#ifndef HAVE_WAITPID
47 pid_t waitpid(pid_t pid, int *statptr, int options)
48{
49 return wait4(pid, statptr, options, NULL);
50}
51#endif
52
53
54#ifndef HAVE_MEMMOVE
55 void *memmove(void *dest, const void *src, size_t n)
56{
57 memcpy(dest, src, n);
58 return dest;
59}
60#endif
61
62#ifndef HAVE_STRPBRK
63/* Find the first ocurrence in S of any character in ACCEPT.
64 derived from glibc
65*/
66 char *strpbrk(const char *s, const char *accept)
67{
68 while (*s != '\0') {
69 const char *a = accept;
70 while (*a != '\0') {
71 if (*a++ == *s) return (char *)s;
72 }
73 ++s;
74 }
75
76 return NULL;
77}
78#endif
79
80#ifdef REPLACE_INET_NTOA
81 char *rep_inet_ntoa(struct in_addr ip)
82{
83 unsigned char *p = (unsigned char *)&ip.s_addr;
84 static char buf[18];
85#if WORDS_BIGENDIAN
86 slprintf(buf, 18, "%d.%d.%d.%d",
87 (int)p[0], (int)p[1], (int)p[2], (int)p[3]);
88#else
89 slprintf(buf, 18, "%d.%d.%d.%d",
90 (int)p[3], (int)p[2], (int)p[1], (int)p[0]);
91#endif
92 return buf;
93}
94#endif
95
96#ifndef HAVE_STRLCPY
97/* like strncpy but does not 0 fill the buffer and always null
98 terminates. bufsize is the size of the destination buffer */
99 size_t strlcpy(char *d, const char *s, size_t bufsize)
100{
101 size_t len = strlen(s);
102 size_t ret = len;
103 if (len >= bufsize) len = bufsize-1;
104 memcpy(d, s, len);
105 d[len] = 0;
106 return ret;
107}
108#endif
109
110#ifndef HAVE_STRLCAT
111/* like strncat but does not 0 fill the buffer and always null
112 terminates. bufsize is the length of the buffer, which should
113 be one more than the maximum resulting string length */
114 size_t strlcat(char *d, const char *s, size_t bufsize)
115{
116 size_t len1 = strlen(d);
117 size_t len2 = strlen(s);
118 size_t ret = len1 + len2;
119
120 if (len1+len2 >= bufsize) {
121 len2 = bufsize - (len1+1);
122 }
123 if (len2 > 0) {
124 memcpy(d+len1, s, len2);
125 d[len1+len2] = 0;
126 }
127 return ret;
128}
129#endif