a53c256508c2d4bab5797d3de72ce694fddd730c
[project/uhttpd.git] / utils.h
1 /*
2 * uhttpd - Tiny single-threaded httpd - Utility header
3 *
4 * Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 #ifndef _UHTTPD_UTILS_
20
21 #include <sys/stat.h>
22
23 #include <stdarg.h>
24 #include <fcntl.h>
25 #include <pwd.h>
26 #include <stdio.h>
27 #include <string.h>
28 #include <errno.h>
29 #include <stdlib.h>
30 #include <unistd.h>
31
32 struct uh_addr {
33 uint8_t family;
34 uint16_t port;
35 union {
36 struct in_addr in;
37 struct in6_addr in6;
38 };
39 };
40
41 #define min(x, y) (((x) < (y)) ? (x) : (y))
42 #define max(x, y) (((x) > (y)) ? (x) : (y))
43
44 #define array_size(x) \
45 (sizeof(x) / sizeof(x[0]))
46
47 #define fd_cloexec(fd) \
48 fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC)
49
50 #ifdef __APPLE__
51 static inline void clearenv(void)
52 {
53 extern char **environ;
54 *environ = NULL;
55 }
56 #endif
57
58 #ifdef __GNUC__
59 #define __printf(a, b) __attribute__((format(printf, a, b)))
60 #else
61 #define __printf(a, b)
62 #endif
63
64 int uh_urldecode(char *buf, int blen, const char *src, int slen);
65 int uh_urlencode(char *buf, int blen, const char *src, int slen);
66 int uh_b64decode(char *buf, int blen, const void *src, int slen);
67 bool uh_path_match(const char *prefix, const char *url);
68 char *uh_split_header(char *str);
69 bool uh_addr_rfc1918(struct uh_addr *addr);
70
71 #endif