2 * Copyright (c) 2020 Omar Polo <op@omarpolo.com>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include <arpa/inet.h>
21 #include <netinet/in.h>
22 #include <sys/socket.h>
32 # define pledge(a, b) 0
33 # define unveil(a, b) 0
44 #define GEMINI_URL_LEN (1024+3) /* URL max len + \r\n + \0 */
46 /* large enough to hold a copy of a gemini URL and still have extra room */
50 #define TEMP_FAILURE 40
52 #define PROXY_REFUSED 53
53 #define BAD_REQUEST 59
69 int fd, waiting_on_child;
71 char sbuf[1024]; /* static buffer */
72 void *buf, *i; /* mmap buffer */
73 ssize_t len, off; /* mmap/static buffer */
75 struct sockaddr_storage addr;
102 void sig_handler(int);
103 int starts_with(const char*, const char*);
105 int start_reply(struct pollfd*, struct client*, int, const char*);
106 ssize_t filesize(int);
107 const char *path_ext(const char*);
108 const char *mime(const char*);
109 int check_path(struct client*, const char*, int*);
110 int check_for_cgi(char *, char*, struct pollfd*, struct client*);
111 int open_file(char*, char*, struct pollfd*, struct client*);
112 int start_cgi(const char*, const char*, const char*, struct pollfd*, struct client*);
113 void cgi_poll_on_child(struct pollfd*, struct client*);
114 void cgi_poll_on_client(struct pollfd*, struct client*);
115 void handle_cgi(struct pollfd*, struct client*);
116 void send_file(char*, char*, struct pollfd*, struct client*);
117 void send_dir(char*, struct pollfd*, struct client*);
118 void handle(struct pollfd*, struct client*);
120 void mark_nonblock(int);
122 void do_accept(int, struct tls*, struct pollfd*, struct client*);
123 void goodbye(struct pollfd*, struct client*);
124 void loop(struct tls*, int, int);
126 void usage(const char*);
129 int valid_multibyte_utf8(struct parser*);
132 int parse_iri(char*, struct iri*, const char**);
133 int trim_req_iri(char*);