+++ /dev/null
-/*
- * $Id$
- *
- * This module handles client-side sockets opened by the Citadel server (for
- * the client side of Internet protocols, etc.) It does _not_ handle client
- * sockets for the Citadel client; for that you must look in ipc_c_tcp.c
- * (which, uncoincidentally, bears a striking similarity to this file).
- *
- */
-
-#ifdef DLL_EXPORT
-#define IN_LIBCIT
-#endif
-
-#include "sysdep.h"
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <signal.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <string.h>
-#include <pwd.h>
-#include <errno.h>
-#include <stdarg.h>
-#include "citadel.h"
-#include "server.h"
-#include "serv_extensions.h"
-#ifndef HAVE_SNPRINTF
-#include "snprintf.h"
-#endif
-#include "sysdep_decls.h"
-#include <clientsocket.h>
-
-#ifndef INADDR_NONE
-#define INADDR_NONE 0xffffffff
-#endif
-
-int sock_connect(char *host, char *service, char *protocol)
-{
- struct hostent *phe;
- struct servent *pse;
- struct protoent *ppe;
- struct sockaddr_in sin;
- int s, type;
-
- memset(&sin, 0, sizeof(sin));
- sin.sin_family = AF_INET;
-
- pse = getservbyname(service, protocol);
- if (pse) {
- sin.sin_port = pse->s_port;
- } else if ((sin.sin_port = htons((u_short) atoi(service))) == 0) {
- lprintf(3, "Can't get %s service entry: %s\n",
- service, strerror(errno));
- 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(3, "Can't get %s host entry: %s\n",
- host, strerror(errno));
- return(-1);
- }
- if ((ppe = getprotobyname(protocol)) == 0) {
- lprintf(3, "Can't get %s protocol entry: %s\n",
- protocol, strerror(errno));
- return(-1);
- }
- if (!strcmp(protocol, "udp")) {
- type = SOCK_DGRAM;
- } else {
- type = SOCK_STREAM;
- }
-
- s = socket(PF_INET, type, ppe->p_proto);
- if (s < 0) {
- lprintf(3, "Can't create socket: %s\n", strerror(errno));
- return(-1);
- }
-
- if (connect(s, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
- lprintf(3, "Can't connect to %s:%s: %s\n",
- host, service, strerror(errno));
- close(s);
- return(-1);
- }
-
- return (s);
-}
-
-
-
-/*
- * sock_read_to() - input binary data from socket, with a settable timeout.
- * Returns the number of bytes read, or -1 for error.
- */
-int sock_read_to(int sock, char *buf, int bytes, int timeout)
-{
- int len,rlen;
- fd_set rfds;
- struct timeval tv;
- int retval;
-
- len = 0;
- while(len<bytes) {
- FD_ZERO(&rfds);
- FD_SET(sock, &rfds);
- tv.tv_sec = timeout;
- tv.tv_usec = 0;
-
- retval = select(sock+1, &rfds, NULL, NULL, &tv);
-
- if (FD_ISSET(sock, &rfds) == 0) { /* timed out */
- lprintf(9, "sock_read() timed out.\n");
- return(-1);
- }
-
- rlen = read(sock, &buf[len], bytes-len);
- if (rlen<1) {
- lprintf(2, "sock_read() failed: %s\n",
- strerror(errno));
- return(-1);
- }
- len = len + rlen;
- }
- return(bytes);
-}
-
-
-/*
- * sock_read() - input binary data from socket.
- * Returns the number of bytes read, or -1 for error.
- */
-INLINE int sock_read(int sock, char *buf, int bytes)
-{
- return sock_read_to(sock, buf, bytes, CLIENT_TIMEOUT);
-}
-
-
-/*
- * sock_write() - send binary to server.
- * Returns the number of bytes written, or -1 for error.
- */
-int sock_write(int sock, char *buf, int nbytes)
-{
- int bytes_written = 0;
- int retval;
- while (bytes_written < nbytes) {
- retval = write(sock, &buf[bytes_written],
- nbytes - bytes_written);
- if (retval < 1) {
- return (-1);
- }
- bytes_written = bytes_written + retval;
- }
- return (bytes_written);
-}
-
-
-
-/*
- * Input string from socket - implemented in terms of sock_read()
- *
- */
-int sock_gets(int sock, char *buf)
-{
- int i;
-
- /* Read one character at a time.
- */
- for (i = 0;; i++) {
- if (sock_read(sock, &buf[i], 1) < 0) return(-1);
- if (buf[i] == '\n' || i == (SIZ-1))
- break;
- }
-
- /* If we got a long line, discard characters until the newline.
- */
- if (i == (SIZ-1))
- while (buf[i] != '\n')
- if (sock_read(sock, &buf[i], 1) < 0) return(-1);
-
- /* Strip any trailing CR and LF characters.
- */
- buf[i] = 0;
- while ( (strlen(buf)>0)
- && ((buf[strlen(buf)-1]==13)
- || (buf[strlen(buf)-1]==10)) ) {
- buf[strlen(buf)-1] = 0;
- }
- return(strlen(buf));
-}
-
-/*
- * Multiline version of sock_gets() ... this is a convenience function for
- * client side protocol implementations. It only returns the first line of
- * a multiline response, discarding the rest.
- */
-int ml_sock_gets(int sock, char *buf) {
- char bigbuf[1024];
- int g;
-
- g = sock_gets(sock, buf);
- if (g < 4) return(g);
- if (buf[3] != '-') return(g);
-
- do {
- g = sock_gets(sock, bigbuf);
- if (g < 0) return(g);
- } while ( (g >= 4) && (bigbuf[3] == '-') );
-
- return(strlen(buf));
-}
-
-
-/*
- * sock_puts() - send line to server - implemented in terms of serv_write()
- * Returns the number of bytes written, or -1 for error.
- */
-int sock_puts(int sock, char *buf)
-{
- int i, j;
-
- i = sock_write(sock, buf, strlen(buf));
- if (i<0) return(i);
- j = sock_write(sock, "\n", 1);
- if (j<0) return(j);
- return(i+j);
-}
projects / citadel.git / blobdiff