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ec0e5ac0 AT |
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 | |
5a788ade | 39 | char *getcwd(char *buf, int size) |
ec0e5ac0 AT |
40 | { |
41 | return getwd(buf); | |
42 | } | |
43 | #endif | |
44 | ||
45 | ||
46 | #ifndef HAVE_WAITPID | |
5a788ade | 47 | pid_t waitpid(pid_t pid, int *statptr, int options) |
ec0e5ac0 | 48 | { |
e68f3481 | 49 | #ifdef HAVE_WAIT4 |
ec0e5ac0 | 50 | return wait4(pid, statptr, options, NULL); |
e68f3481 DD |
51 | #else |
52 | /* If wait4 is also not available, try wait3 for SVR3 variants */ | |
53 | /* Less ideal because can't actually request a specific pid */ | |
54 | /* At least the WNOHANG option is supported */ | |
55 | /* Code borrowed from apache fragment written by dwd@bell-labs.com */ | |
56 | int tmp_pid, dummystat;; | |
57 | if (kill(pid, 0) == -1) { | |
58 | errno = ECHILD; | |
59 | return -1; | |
60 | } | |
61 | if (statptr == NULL) | |
62 | statptr = &dummystat; | |
63 | while (((tmp_pid = wait3(statptr, options, 0)) != pid) && | |
64 | (tmp_pid != -1) && (tmp_pid != 0) && (pid != -1)) | |
65 | ; | |
66 | return tmp_pid; | |
67 | #endif | |
ec0e5ac0 AT |
68 | } |
69 | #endif | |
70 | ||
9fc310da AT |
71 | |
72 | #ifndef HAVE_MEMMOVE | |
5a788ade | 73 | void *memmove(void *dest, const void *src, size_t n) |
9fc310da | 74 | { |
52d7d788 | 75 | bcopy((char *) src, (char *) dest, n); |
9fc310da AT |
76 | return dest; |
77 | } | |
78 | #endif | |
2b6b4d53 AT |
79 | |
80 | #ifndef HAVE_STRPBRK | |
81 | /* Find the first ocurrence in S of any character in ACCEPT. | |
82 | derived from glibc | |
83 | */ | |
5a788ade | 84 | char *strpbrk(const char *s, const char *accept) |
2b6b4d53 AT |
85 | { |
86 | while (*s != '\0') { | |
87 | const char *a = accept; | |
88 | while (*a != '\0') { | |
89 | if (*a++ == *s) return (char *)s; | |
90 | } | |
91 | ++s; | |
92 | } | |
93 | ||
94 | return NULL; | |
95 | } | |
96 | #endif | |
7b3d4257 AT |
97 | |
98 | #ifdef REPLACE_INET_NTOA | |
5a788ade | 99 | char *rep_inet_ntoa(struct in_addr ip) |
7b3d4257 AT |
100 | { |
101 | unsigned char *p = (unsigned char *)&ip.s_addr; | |
102 | static char buf[18]; | |
103 | #if WORDS_BIGENDIAN | |
37f9805d | 104 | slprintf(buf, 18, "%d.%d.%d.%d", |
7b3d4257 AT |
105 | (int)p[0], (int)p[1], (int)p[2], (int)p[3]); |
106 | #else | |
37f9805d | 107 | slprintf(buf, 18, "%d.%d.%d.%d", |
7b3d4257 AT |
108 | (int)p[3], (int)p[2], (int)p[1], (int)p[0]); |
109 | #endif | |
110 | return buf; | |
111 | } | |
112 | #endif | |
5a788ade AT |
113 | |
114 | #ifndef HAVE_STRLCPY | |
115 | /* like strncpy but does not 0 fill the buffer and always null | |
116 | terminates. bufsize is the size of the destination buffer */ | |
117 | size_t strlcpy(char *d, const char *s, size_t bufsize) | |
118 | { | |
119 | size_t len = strlen(s); | |
120 | size_t ret = len; | |
121 | if (len >= bufsize) len = bufsize-1; | |
122 | memcpy(d, s, len); | |
123 | d[len] = 0; | |
124 | return ret; | |
125 | } | |
126 | #endif | |
127 | ||
128 | #ifndef HAVE_STRLCAT | |
129 | /* like strncat but does not 0 fill the buffer and always null | |
130 | terminates. bufsize is the length of the buffer, which should | |
131 | be one more than the maximum resulting string length */ | |
132 | size_t strlcat(char *d, const char *s, size_t bufsize) | |
133 | { | |
134 | size_t len1 = strlen(d); | |
135 | size_t len2 = strlen(s); | |
136 | size_t ret = len1 + len2; | |
137 | ||
138 | if (len1+len2 >= bufsize) { | |
139 | len2 = bufsize - (len1+1); | |
140 | } | |
141 | if (len2 > 0) { | |
142 | memcpy(d+len1, s, len2); | |
143 | d[len1+len2] = 0; | |
144 | } | |
145 | return ret; | |
146 | } | |
147 | #endif | |
b17bc22b AT |
148 | |
149 | #ifndef HAVE_INET_ATON | |
150 | int inet_aton(const char *cp, struct in_addr *inp) | |
151 | { | |
152 | if (strcmp(cp, "255.255.255.255") == 0) { | |
153 | inp->s_addr = (unsigned) -1; | |
154 | return 1; | |
155 | } | |
156 | ||
157 | inp->s_addr = inet_addr(cp); | |
158 | if (inp->s_addr == (unsigned) -1) { | |
159 | return 0; | |
160 | } | |
161 | return 1; | |
162 | } | |
163 | #endif |