+++ /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).
- *
- */
-
-#include "sysdep.h"
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <signal.h>
-#include <sys/types.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"
-#ifndef HAVE_SNPRINTF
-#include "snprintf.h"
-#endif
-#include "sysdep_decls.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);
- }
-
-/* FIX ... the alarm clock is a problem for multithreaded programs because all
- * threads receive the signal.
- signal(SIGALRM, timeout);
- alarm(30);
- */
-
- if (connect(s, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
- lprintf(3, "can't connect to %s.%s: %s\n",
- host, service, strerror(errno));
- return(-1);
- }
-/*
- alarm(0);
- signal(SIGALRM, SIG_IGN);
- */
-
- return (s);
-}
-
-/*
- * sock_read() - input binary data from socket.
- * Returns the number of bytes read, or -1 for error.
- */
-int sock_read(int sock, char *buf, int bytes)
-{
- int len, rlen;
-
- len = 0;
- while (len < bytes) {
- rlen = read(sock, &buf[len], bytes - len);
- if (rlen < 1) {
- return (-1);
- }
- len = len + rlen;
- }
- return (len);
-}
-
-
-/*
- * 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 == 255)
- break;
- }
-
- /* If we got a long line, discard characters until the newline.
- */
- if (i == 255)
- 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));
-}
-
-
-/*
- * 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);
-}