+++ /dev/null
-/*
- * $Id$
- */
-/**
- * \defgroup TcpSockets TCP client socket module for WebCit
- * \ingroup CitadelCommunitacion
- */
-/*@{*/
-
-/*
- * Uncomment this to log all communications with the Citadel server
-#define SERV_TRACE 1
- */
-
-
-#include "webcit.h"
-#include "webserver.h"
-
-/**
- * \brief register the timeout
- * \param signum signalhandler number
- * \return signals
- */
-RETSIGTYPE timeout(int signum)
-{
- lprintf(1, "Connection timed out.\n");
- exit(3);
-}
-
-
-/**
- * \brief Connect a unix domain socket
- * \param sockpath where to open a unix domain socket
- */
-int uds_connectsock(char *sockpath)
-{
- struct sockaddr_un addr;
- int s;
-
- memset(&addr, 0, sizeof(addr));
- addr.sun_family = AF_UNIX;
- strncpy(addr.sun_path, sockpath, sizeof addr.sun_path);
-
- s = socket(AF_UNIX, SOCK_STREAM, 0);
- if (s < 0) {
- lprintf(1, "Can't create socket: %s\n",
- strerror(errno));
- return(-1);
- }
-
- if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
- lprintf(1, "Can't connect: %s\n",
- strerror(errno));
- close(s);
- return(-1);
- }
-
- return s;
-}
-
-
-/**
- * \brief Connect a TCP/IP socket
- * \param host the host to connect to
- * \param service the service on the host to call
- */
-int tcp_connectsock(char *host, char *service)
-{
- struct hostent *phe;
- struct servent *pse;
- struct protoent *ppe;
- struct sockaddr_in sin;
- int s;
-
- memset(&sin, 0, sizeof(sin));
- sin.sin_family = AF_INET;
-
- pse = getservbyname(service, "tcp");
- if (pse) {
- sin.sin_port = pse->s_port;
- } else if ((sin.sin_port = htons((u_short) atoi(service))) == 0) {
- lprintf(1, "Can't get %s service entry\n", service);
- return (-1);
- }
- phe = gethostbyname(host);
- if (phe) {
- memcpy(&sin.sin_addr, phe->h_addr, phe->h_length);
- } else if ((sin.sin_addr.s_addr = inet_addr(host)) == INADDR_NONE) {
- lprintf(1, "Can't get %s host entry: %s\n",
- host, strerror(errno));
- return (-1);
- }
- if ((ppe = getprotobyname("tcp")) == 0) {
- lprintf(1, "Can't get TCP protocol entry: %s\n",
- strerror(errno));
- return (-1);
- }
-
- s = socket(PF_INET, SOCK_STREAM, ppe->p_proto);
- if (s < 0) {
- lprintf(1, "Can't create socket: %s\n", strerror(errno));
- return (-1);
- }
- signal(SIGALRM, timeout);
- alarm(30);
-
- if (connect(s, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
- lprintf(1, "Can't connect to %s.%s: %s\n",
- host, service, strerror(errno));
- close(s);
- return (-1);
- }
- alarm(0);
- signal(SIGALRM, SIG_IGN);
-
- return (s);
-}
-
-
-
-
-/**
- * \brief Input binary data from socket
- * \param buf the buffer to get the input to
- * \param bytes the maximal number of bytes to read
- */
-inline void _serv_read(char *buf, int bytes, struct wcsession *WCC)
-{
- int len, rlen;
-
- len = 0;
- while (len < bytes) {
- rlen = read(WCC->serv_sock, &buf[len], bytes - len);
- if (rlen < 1) {
- lprintf(1, "Server connection broken: %s\n",
- strerror(errno));
- wc_backtrace();
- close(WCC->serv_sock);
- WCC->serv_sock = (-1);
- WCC->connected = 0;
- WCC->logged_in = 0;
- memset(buf, 0, bytes);
- return;
- }
- len = len + rlen;
- }
-}
-
-void serv_read(char *buf, int bytes)
-{
- struct wcsession *WCC = WC;
- _serv_read(buf, bytes, WCC);
-}
-
-/**
- * \brief input string from pipe
- */
-int serv_getln(char *strbuf, int bufsize)
-{
- struct wcsession *WCC = WC;
- int ch, len;
- char buf[2];
-
- len = 0;
- strbuf[0] = 0;
- do {
- _serv_read(&buf[0], 1, WCC);
- ch = buf[0];
- if ((ch != 13) && (ch != 10)) {
- strbuf[len++] = ch;
- }
- } while ((ch != 10) && (ch != 0) && (len < (bufsize-1)));
- strbuf[len] = 0;
-#ifdef SERV_TRACE
- lprintf(9, "%3d>%s\n", WC->serv_sock, strbuf);
-#endif
- return len;
-}
-
-int StrBuf_ServGetln(StrBuf *buf)
-{
- const char *ErrStr;
- int rc;
-
- rc = StrBufTCP_read_line(buf, WC->serv_sock, 0, &ErrStr);
- if (rc < 0)
- {
- lprintf(1, "Server connection broken: %s\n",
- ErrStr);
- wc_backtrace();
- WC->serv_sock = (-1);
- WC->connected = 0;
- WC->logged_in = 0;
- }
- return rc;
-}
-
-/**
- * \brief send binary to server
- * \param buf the buffer to write to citadel server
- * \param nbytes how many bytes to send to citadel server
- */
-void serv_write(char *buf, int nbytes)
-{
- int bytes_written = 0;
- int retval;
- while (bytes_written < nbytes) {
- retval = write(WC->serv_sock, &buf[bytes_written],
- nbytes - bytes_written);
- if (retval < 1) {
- lprintf(1, "Server connection broken: %s\n",
- strerror(errno));
- close(WC->serv_sock);
- WC->serv_sock = (-1);
- WC->connected = 0;
- WC->logged_in = 0;
- return;
- }
- bytes_written = bytes_written + retval;
- }
-}
-
-
-/**
- * \brief send line to server
- * \param string the line to send to the citadel server
- */
-void serv_puts(char *string)
-{
-#ifdef SERV_TRACE
- lprintf(9, "%3d<%s\n", WC->serv_sock, string);
-#endif
- serv_write(string, strlen(string));
- serv_write("\n", 1);
-}
-
-
-/**
- * \brief convenience function to send stuff to the server
- * \param format the formatstring
- * \param ... the entities to insert into format
- */
-void serv_printf(const char *format,...)
-{
- va_list arg_ptr;
- char buf[SIZ];
- size_t len;
-
- va_start(arg_ptr, format);
- vsnprintf(buf, sizeof buf, format, arg_ptr);
- va_end(arg_ptr);
-
- len = strlen(buf);
- buf[len++] = '\n';
- buf[len] = '\0';
- serv_write(buf, len);
-#ifdef SERV_TRACE
- lprintf(9, "<%s", buf);
-#endif
-}
-
-
-/*@}*/
projects / citadel.git / blobdiff