如何在 Solaris 编译 C 文件 - JBTALKS.CC

/* TCPdaytime.c - TCPdaytime, main */
#include <sys/errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
int TCPdaytime(const char *host, const char *service);
int errexit(const char *format, ...);
int connectTCP(const char *host, const char *service);
#define LINELEN 128
/*------------------------------------------------------------------------
* main - TCP client for DAYTIME service
*------------------------------------------------------------------------
*/
int
main(int argc, char *argv[])
{
char *host = "localhost"; /* host to use if none supplied */
char *service = "daytime"; /* default service port */
switch (argc) {
case 1:
host = "localhost";
break;
case 3:
service = argv[2];
/* FALL THROUGH */
case 2:
host = argv[1];
break;
default:
fprintf(stderr, "usage: TCPdaytime [host [port]]\n");
exit(1);
}
TCPdaytime(host, service);
exit(0);
}
/*------------------------------------------------------------------------
* TCPdaytime - invoke Daytime on specified host and print results
*------------------------------------------------------------------------
*/
TCPdaytime(const char *host, const char *service)
{
char buf[LINELEN+1]; /* buffer for one line of text */
int s, n; /* socket, read count */
s = connectTCP(host, service);
while( (n = read(s, buf, LINELEN)) > 0) {
buf[n] = '\0'; /* ensure null-terminated */
(void) fputs( buf, stdout );
}
}

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/* connectTCP.c - connectTCP */
int connectsock(const char *host, const char *service,
const char *transport);
/*------------------------------------------------------------------------
* connectTCP - connect to a specified TCP service on a specified host
*------------------------------------------------------------------------
*/
int
connectTCP(const char *host, const char *service )
/*
* Arguments:
* host - name of host to which connection is desired
* service - service associated with the desired port
*/
{
return connectsock( host, service, "tcp");
}

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/* connectsock.c - connectsock */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <string.h>
#include <stdlib.h>
#ifndef INADDR_NONE
#define INADDR_NONE 0xffffffff
#endif /* INADDR_NONE */
int errexit(const char *format, ...);
/*------------------------------------------------------------------------
* connectsock - allocate & connect a socket using TCP or UDP
*------------------------------------------------------------------------
*/
int
connectsock(const char *host, const char *service, const char *transport )
/*
* Arguments:
* host - name of host to which connection is desired
* service - service associated with the desired port
* transport - name of transport protocol to use ("tcp" or "udp")
*/
{
struct hostent *phe; /* pointer to host information entry */
struct servent *pse; /* pointer to service information entry */
struct protoent *ppe; /* pointer to protocol information entry*/
struct sockaddr_in sin; /* an Internet endpoint address */
int s, type; /* socket descriptor and socket type */
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
/* Map service name to port number */
if ( pse = getservbyname(service, transport) )
sin.sin_port = pse->s_port;
else if ((sin.sin_port=htons((unsigned short)atoi(service))) == 0)
errexit("can't get \"%s\" service entry\n", service);
/* Map host name to IP address, allowing for dotted decimal */
if ( phe = gethostbyname(host) )
memcpy(&sin.sin_addr, phe->h_addr, phe->h_length);
else if ( (sin.sin_addr.s_addr = inet_addr(host)) == INADDR_NONE )
errexit("can't get \"%s\" host entry\n", host);
/* Map transport protocol name to protocol number */
if ( (ppe = getprotobyname(transport)) == 0)
errexit("can't get \"%s\" protocol entry\n", transport);
/* Use protocol to choose a socket type */
if (strcmp(transport, "udp") == 0)
type = SOCK_DGRAM;
else
type = SOCK_STREAM;
/* Allocate a socket */
s = socket(PF_INET, type, ppe->p_proto);
if (s < 0)
errexit("can't create socket: %s\n", strerror(errno));
/* Connect the socket */
if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0)
errexit("can't connect to %s.%s: %s\n", host, service,
strerror(errno));
return s;
}

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