2 ashd - A Sane HTTP Daemon
3 Copyright (C) 2008 Fredrik Tolf <fredrik@dolda2000.com>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include <sys/socket.h>
23 #include <netinet/in.h>
24 #include <arpa/inet.h>
46 struct sockaddr_storage name;
51 int listensock4(int port)
53 struct sockaddr_in name;
57 memset(&name, 0, sizeof(name));
58 name.sin_family = AF_INET;
59 name.sin_port = htons(port);
60 if((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0)
63 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &valbuf, sizeof(valbuf));
64 if(bind(fd, (struct sockaddr *)&name, sizeof(name))) {
68 if(listen(fd, 128) < 0) {
72 fcntl(fd, F_SETFD, FD_CLOEXEC);
76 int listensock6(int port)
78 struct sockaddr_in6 name;
82 memset(&name, 0, sizeof(name));
83 name.sin6_family = AF_INET6;
84 name.sin6_port = htons(port);
85 if((fd = socket(PF_INET6, SOCK_STREAM, 0)) < 0)
88 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &valbuf, sizeof(valbuf));
89 if(bind(fd, (struct sockaddr *)&name, sizeof(name))) {
93 if(listen(fd, 128) < 0) {
97 fcntl(fd, F_SETFD, FD_CLOEXEC);
101 char *formathaddress(struct sockaddr *name, socklen_t namelen)
103 static char buf[128];
104 struct sockaddr_in *v4;
105 struct sockaddr_in6 *v6;
107 switch(name->sa_family) {
109 v4 = (struct sockaddr_in *)name;
110 if(!inet_ntop(AF_INET, &v4->sin_addr, buf, sizeof(buf)))
114 v6 = (struct sockaddr_in6 *)name;
115 if(IN6_IS_ADDR_V4MAPPED(&v6->sin6_addr)) {
116 if(!inet_ntop(AF_INET, ((char *)&v6->sin6_addr) + 12, buf, sizeof(buf)))
119 if(!inet_ntop(AF_INET6, &v6->sin6_addr, buf, sizeof(buf)))
124 errno = EPFNOSUPPORT;
129 static int initreq(struct conn *conn, struct hthead *req)
131 struct tcpconn *tcp = conn->pdata;
132 struct sockaddr_storage sa;
135 headappheader(req, "X-Ash-Address", formathaddress((struct sockaddr *)&tcp->name, sizeof(sa)));
136 if(tcp->name.ss_family == AF_INET)
137 headappheader(req, "X-Ash-Port", sprintf3("%i", ntohs(((struct sockaddr_in *)&tcp->name)->sin_port)));
138 else if(tcp->name.ss_family == AF_INET6)
139 headappheader(req, "X-Ash-Port", sprintf3("%i", ntohs(((struct sockaddr_in6 *)&tcp->name)->sin6_port)));
141 if(!getsockname(tcp->fd, (struct sockaddr *)&sa, &salen))
142 headappheader(req, "X-Ash-Server-Address", formathaddress((struct sockaddr *)&sa, sizeof(sa)));
143 headappheader(req, "X-Ash-Server-Port", sprintf3("%i", tcp->port->sport));
144 headappheader(req, "X-Ash-Protocol", "http");
148 void servetcp(struct muth *muth, va_list args)
151 vavar(struct sockaddr_storage, name);
152 vavar(struct tcpport *, stcp);
157 memset(&conn, 0, sizeof(conn));
158 memset(&tcp, 0, sizeof(tcp));
159 in = mtstdopen(fd, 1, 60, "r+");
161 conn.initreq = initreq;
168 static void listenloop(struct muth *muth, va_list args)
170 vavar(struct tcpport *, tcp);
172 struct sockaddr_storage name;
176 namelen = sizeof(name);
177 if(block(tcp->fd, EV_READ, 0) == 0)
179 ns = accept(tcp->fd, (struct sockaddr *)&name, &namelen);
181 flog(LOG_ERR, "accept: %s", strerror(errno));
184 mustart(servetcp, ns, name, tcp);
190 for(i = 0; i < listeners.d; i++) {
191 if(listeners.b[i] == muth)
192 bufdel(listeners, i);
196 void handleplain(int argc, char **argp, char **argv)
203 for(i = 0; i < argc; i++) {
204 if(!strcmp(argp[i], "help")) {
205 printf("plain handler parameters:\n");
206 printf("\tport=TCP-PORT [80]\n");
207 printf("\t\tThe TCP port to listen on.\n");
209 } else if(!strcmp(argp[i], "port")) {
210 port = atoi(argv[i]);
212 flog(LOG_ERR, "unknown parameter `%s' to plain handler", argp[i]);
216 if((fd = listensock6(port)) < 0) {
217 flog(LOG_ERR, "could not listen on IPv6 (port %i): %s", port, strerror(errno));
223 bufadd(listeners, mustart(listenloop, tcp));
224 if((fd = listensock4(port)) < 0) {
225 if(errno != EADDRINUSE) {
226 flog(LOG_ERR, "could not listen on IPv4 (port %i): %s", port, strerror(errno));
233 bufadd(listeners, mustart(listenloop, tcp));