4 * TCP socket module for WebCit
16 #include <sys/types.h>
18 #include <sys/socket.h>
21 #include <netinet/in.h>
22 #include <arpa/inet.h>
32 #include "webserver.h"
36 #define INADDR_NONE 0xffffffff
39 RETSIGTYPE timeout(int signum)
41 lprintf(1, "Connection timed out.\n");
48 * Connect a unix domain socket
50 int uds_connectsock(char *sockpath)
52 struct sockaddr_un addr;
55 memset(&addr, 0, sizeof(addr));
56 addr.sun_family = AF_UNIX;
57 strncpy(addr.sun_path, sockpath, sizeof addr.sun_path);
59 s = socket(AF_UNIX, SOCK_STREAM, 0);
61 lprintf(1, "Can't create socket: %s\n",
66 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
67 lprintf(1, "Can't connect: %s\n",
78 * Connect a TCP/IP socket
80 int tcp_connectsock(char *host, char *service)
85 struct sockaddr_in sin;
88 memset(&sin, 0, sizeof(sin));
89 sin.sin_family = AF_INET;
91 pse = getservbyname(service, "tcp");
93 sin.sin_port = pse->s_port;
94 } else if ((sin.sin_port = htons((u_short) atoi(service))) == 0) {
95 lprintf(1, "Can't get %s service entry\n", service);
98 phe = gethostbyname(host);
100 memcpy(&sin.sin_addr, phe->h_addr, phe->h_length);
101 } else if ((sin.sin_addr.s_addr = inet_addr(host)) == INADDR_NONE) {
102 lprintf(1, "Can't get %s host entry: %s\n",
103 host, strerror(errno));
106 if ((ppe = getprotobyname("tcp")) == 0) {
107 lprintf(1, "Can't get TCP protocol entry: %s\n",
112 s = socket(PF_INET, SOCK_STREAM, ppe->p_proto);
114 lprintf(1, "Can't create socket: %s\n", strerror(errno));
117 signal(SIGALRM, timeout);
120 if (connect(s, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
121 lprintf(1, "Can't connect to %s.%s: %s\n",
122 host, service, strerror(errno));
127 signal(SIGALRM, SIG_IGN);
136 * Input binary data from socket
138 void serv_read(char *buf, int bytes)
143 while (len < bytes) {
144 rlen = read(WC->serv_sock, &buf[len], bytes - len);
146 lprintf(1, "Server connection broken: %s\n",
148 close(WC->serv_sock);
149 WC->serv_sock = (-1);
160 * input string from pipe
162 void serv_gets(char *strbuf)
170 serv_read(&buf[0], 1);
173 } while ((ch != 10) && (ch != 0) && (len < (SIZ-1)));
174 if (strbuf[len-1] == 10) strbuf[--len] = 0;
175 if (strbuf[len-1] == 13) strbuf[--len] = 0;
176 /* lprintf(9, ">%s\n", strbuf); */
182 * send binary to server
184 void serv_write(char *buf, int nbytes)
186 int bytes_written = 0;
188 while (bytes_written < nbytes) {
189 retval = write(WC->serv_sock, &buf[bytes_written],
190 nbytes - bytes_written);
192 lprintf(1, "Server connection broken: %s\n",
194 close(WC->serv_sock);
195 WC->serv_sock = (-1);
200 bytes_written = bytes_written + retval;
206 * send line to server
208 void serv_puts(char *string)
212 sprintf(buf, "%s\n", string);
213 serv_write(buf, strlen(buf));
218 * convenience function to send stuff to the server
220 void serv_printf(const char *format,...)
225 va_start(arg_ptr, format);
226 vsprintf(buf, format, arg_ptr);
230 serv_write(buf, strlen(buf));
231 /* lprintf(9, "<%s", buf); */