6 * Uncomment this to log all communications with the Citadel server
12 #include "webserver.h"
15 * register the timeout
16 * signum signalhandler number
19 RETSIGTYPE timeout(int signum)
21 lprintf(1, "Connection timed out; unable to reach citserver\n");
22 /* no exit here, since we need to server the connection unreachable thing. exit(3); */
27 * Connect a unix domain socket
28 * sockpath where to open a unix domain socket
30 int uds_connectsock(char *sockpath)
32 struct sockaddr_un addr;
35 memset(&addr, 0, sizeof(addr));
36 addr.sun_family = AF_UNIX;
37 strncpy(addr.sun_path, sockpath, sizeof addr.sun_path);
39 s = socket(AF_UNIX, SOCK_STREAM, 0);
41 lprintf(1, "Can't create socket[%s]: %s\n",
47 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
48 lprintf(1, "Can't connect [%s]: %s\n",
60 * Connect a TCP/IP socket
61 * host the host to connect to
62 * service the service on the host to call
64 int tcp_connectsock(char *host, char *service)
69 struct sockaddr_in sin;
72 memset(&sin, 0, sizeof(sin));
73 sin.sin_family = AF_INET;
75 pse = getservbyname(service, "tcp");
77 sin.sin_port = pse->s_port;
78 } else if ((sin.sin_port = htons((u_short) atoi(service))) == 0) {
79 lprintf(1, "Can't get %s service entry\n", service);
82 phe = gethostbyname(host);
84 memcpy(&sin.sin_addr, phe->h_addr, phe->h_length);
85 } else if ((sin.sin_addr.s_addr = inet_addr(host)) == INADDR_NONE) {
86 lprintf(1, "Can't get %s host entry: %s\n",
87 host, strerror(errno));
90 if ((ppe = getprotobyname("tcp")) == 0) {
91 lprintf(1, "Can't get TCP protocol entry: %s\n",
96 s = socket(PF_INET, SOCK_STREAM, ppe->p_proto);
98 lprintf(1, "Can't create socket: %s\n", strerror(errno));
101 signal(SIGALRM, timeout);
104 if (connect(s, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
105 lprintf(1, "Can't connect to %s.%s: %s\n",
106 host, service, strerror(errno));
111 signal(SIGALRM, SIG_IGN);
120 * Input binary data from socket
121 * buf the buffer to get the input to
122 * bytes the maximal number of bytes to read
124 inline void _serv_read(char *buf, int bytes, wcsession *WCC)
129 while ((len < bytes) && (WCC->serv_sock != -1)){
130 rlen = read(WCC->serv_sock, &buf[len], bytes - len);
132 lprintf(1, "Server connection broken: %s\n",
135 close(WCC->serv_sock);
136 WCC->serv_sock = (-1);
139 memset(buf, 0, bytes);
147 * input string from pipe
149 int serv_getln(char *strbuf, int bufsize)
159 _serv_read(&buf[0], 1, WCC);
161 if ((ch != 13) && (ch != 10)) {
164 } while ((ch != 10) && (ch != 0) && (len < (bufsize-1)) && (WCC->serv_sock != -1));
167 lprintf(9, "%3d>%s\n", WC->serv_sock, strbuf);
172 int StrBuf_ServGetln(StrBuf *buf)
179 rc = StrBufTCP_read_line(buf, &WCC->serv_sock, 0, &ErrStr);
182 lprintf(1, "Server connection broken: %s\n",
185 WCC->serv_sock = (-1);
192 int StrBuf_ServGetlnBuffered(StrBuf *buf)
198 rc = StrBufTCP_read_buffered_line_fast(buf,
206 lprintf(1, "Server connection broken: %s\n",
209 WCC->serv_sock = (-1);
216 int StrBuf_ServGetBLOBBuffered(StrBuf *buf, long BlobSize)
222 rc = StrBufReadBLOBBuffered(buf,
232 lprintf(1, "Server connection broken: %s\n",
235 WCC->serv_sock = (-1);
242 int StrBuf_ServGetBLOB(StrBuf *buf, long BlobSize)
249 rc = StrBufReadBLOB(buf, &WCC->serv_sock, 1, BlobSize, &Err);
252 lprintf(1, "Server connection broken: %s\n",
255 WCC->serv_sock = (-1);
263 * send binary to server
264 * buf the buffer to write to citadel server
265 * nbytes how many bytes to send to citadel server
267 void serv_write(const char *buf, int nbytes)
269 int bytes_written = 0;
271 while (bytes_written < nbytes) {
272 retval = write(WC->serv_sock, &buf[bytes_written],
273 nbytes - bytes_written);
275 lprintf(1, "Server connection broken: %s\n",
277 close(WC->serv_sock);
278 WC->serv_sock = (-1);
283 bytes_written = bytes_written + retval;
289 * send line to server
290 * string the line to send to the citadel server
292 void serv_puts(const char *string)
296 lprintf(9, "%3d<%s\n", WC->serv_sock, string);
298 FlushStrBuf(WCC->ReadBuf);
301 serv_write(string, strlen(string));
306 * send line to server
307 * string the line to send to the citadel server
309 void serv_putbuf(const StrBuf *string)
313 lprintf(9, "%3d<%s\n", WC->serv_sock, ChrPtr(string));
315 FlushStrBuf(WCC->ReadBuf);
318 serv_write(ChrPtr(string), StrLength(string));
324 * convenience function to send stuff to the server
325 * format the formatstring
326 * ... the entities to insert into format
328 void serv_printf(const char *format,...)
335 FlushStrBuf(WCC->ReadBuf);
338 va_start(arg_ptr, format);
339 vsnprintf(buf, sizeof buf, format, arg_ptr);
345 serv_write(buf, len);
347 lprintf(9, "<%s", buf);