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
  57 time_t timegm (struct tm *tm);
  58
  59 #endif
  60
  61 #ifdef __GNUC__
  62 #define __printf(a, b) __attribute__((format(printf, a, b)))
  63 #else
  64 #define __printf(a, b)
  65 #endif
  66
  67 int uh_urldecode(char *buf, int blen, const char *src, int slen);
  68 int uh_urlencode(char *buf, int blen, const char *src, int slen);
  69 int uh_b64decode(char *buf, int blen, const void *src, int slen);
  70 bool uh_path_match(const char *prefix, const char *url);
  71 char *uh_split_header(char *str);
  72 bool uh_addr_rfc1918(struct uh_addr *addr);
  73
  74 #endif