wincompat.h

socket编程方面的例子

#include <sys/timeb.h>
#include <time.h>
#define TRUE 1
#define FALSE 0
#define NLISTEN 5
#define NSMB 5
#define SMBUFSZ 256

#define MINBSDSOCKERR (WSAEWOULDBLOCK)
#define MAXBSDSOCKERR (MINBSDSOCKERR+\
						(sizeof(bsdsocketerrs)/\
						sizeof(bsdsocketerrs[0])))
extern int sys_nerr;
extern char *sys_errlist[];
extern char *program_name;
static char *bsdsocketerrs[]=
{
    	"Resource temporarily unavailable",
		"Operation now in progress",
		"Operation already in progress",
		"Socket operation on non_socket",
		"Destination address required",
		"Message too long",
		"Protocol wrong type of socket",
		"Bad protocol option",
		"Protocol not supported",
		"Socket type not supported",
		"Operation not supported",
		"Protocol family not supported",
		"Address family not supported by protocol family",
		"Address already in use",
		"Can't assign requested address",
		"Network is down",
		"Network is unreachable",
		"Network dropped connection on reset",
		"Software caused connection abort",
		"Connection reset by peer",
		"No buffer space available",
		"Socket is already connected",
		"Socket is not connected",
		"Cannot send after socket shutdown",
		"Too many references: can't splice",
		"Connection timed out",
		"Connection refused",
		"Too many levels of symbolic links",
		"File name too long",
		"Host is down",
		"No route to host"
};
void init(char **argv)
{
	WSADATA wsadata;
	(program_name=strrchr(argv[0],'\\'))?program_name++:(program_name=argv[0]);
	WSAStartup(MAKEWORD(2,2),&wsadata);
}
int inet_aton(char *cp,struct in_addr *pin)
{
	int rc;
	rc=inet_addr(cp);
	if(rc==-1&&strcmp(cp,"255.255.255.255"))
	{
		return 0;
	}
	pin->s_addr=rc;
	return 1;
}
int gettimeofday(struct timeval *tvp,struct timezone *tzp)
{
	struct _timeb tb;
	_ftime(&tb);
	if(tvp)
	{
		tvp->tv_sec=tb.time;
		tvp->tv_usec=tb.millitm*1000;
	}
	if(tzp)
	{
		tzp->tz_minuteswest=tb.timezone;
		tzp->tz_dsttime=tb.dstflag;
	}
	return 0;
}
char *strerror(int err)
{
	if(err>=0&&err<sys_nerr)
	{
		return sys_errlist[err];

	}
	else if(err>=MINBSDSOCKERR && err<MAXBSDSOCKERR)
		return bsdsocketerrs[err-MINBSDSOCKERR];
	else if(err==WSASYSNOTREADY)
		return "Network subsystem is unusable";
	else if(err==WSAVERNOTSUPPORTED)
		return "This version of Winsock not supported";
	else if(err==WSANOTINITIALISED)
		return "Winsock not initialized";
	else 
		return "Unknown error";
}