C++ (Cpp) my_inet_pton Examples

Example #1

int main(int argc, char *argv[])
{
    if (2 != argc) {
        printf("Usage: ./a.out <ip address>\n"); 
    }
    char buf[64];
    bzero(buf, sizeof(buf));
    if (0 >= my_inet_pton(AF_INET, argv[1], (void *)buf)){
        printf("Conver error\n"); 
    }
    printf("network addr string: %d\n", buf);
    return 0;
}

Example #2

File: cli_udp_mcast.c Project: isshe/Curriculum-design

int main(int argc, char **argv)
{
     int    sockfd = 0;
     struct sockaddr_in     servaddr;

     if (argc < 2)
     {
          err_quit("usage: ./a.out <IPaddress>");
     }

     bzero(&servaddr, sizeof(servaddr));
     servaddr.sin_family = AF_INET;
     servaddr.sin_port = htons(SERV_PORT); //将一个无符号短整型的主机数值转换为网络字节顺序
     my_inet_pton(AF_INET, MCAST_IP, &servaddr.sin_addr); //十进制IP转二进制

     //创建一个套接字
     sockfd = my_socket(AF_INET, SOCK_DGRAM, 0);

     dg_cli(stdin, sockfd, (SA *) &servaddr, sizeof(servaddr));

     exit(0);
}

Example #3

File: udpcli.c Project: isshe/1.Network_programming

int main(int argc, char **argv)
{
    int    sockfd = 0;
    struct sockaddr_in     servaddr;

    if (argc != 2)
    {
        err_quit("usage: ./udpcli <IPaddress>");
    }

    bzero(&servaddr, sizeof(servaddr));
    servaddr.sin_family  = AF_INET;
    servaddr.sin_port    = htons(SERV_PORT);
    my_inet_pton(AF_INET, argv[1], &servaddr.sin_addr);
//    servaddr.sin_addr.s_addr = htonl(argv[1]);

    sockfd = my_socket(AF_INET, SOCK_DGRAM, 0);

    tu8_19dg_cli(stdin, sockfd, (SA *)&servaddr, sizeof(servaddr));

    exit(0);

}

Example #4

File: libpatricia.c Project: valderrama/ModSSOBand

/* ascii2prefix
 */
prefix_t *
ascii2prefix (int family, char *string)
{
    u_long bitlen, maxbitlen = 0;
    char *cp;
    struct in_addr sin;
#ifdef HAVE_IPV6
    struct in6_addr sin6;
#endif /* HAVE_IPV6 */
    int result;
    char save[MAXLINE];

    if (string == NULL)
		return (NULL);

    /* easy way to handle both families */
    if (family == 0) {
       family = AF_INET;
#ifdef HAVE_IPV6
       if (strchr (string, ':')) family = AF_INET6;
#endif /* HAVE_IPV6 */
    }

    if (family == AF_INET) {
		maxbitlen = 32;
    }
#ifdef HAVE_IPV6
    else if (family == AF_INET6) {
		maxbitlen = 128;
    }
#endif /* HAVE_IPV6 */

    if ((cp = strchr (string, '/')) != NULL) {
		bitlen = atol (cp + 1);
		/* *cp = '\0'; */
		/* copy the string to save. Avoid destroying the string */
		assert (cp - string < MAXLINE);
		memcpy (save, string, cp - string);
		save[cp - string] = '\0';
		string = save;
		if (bitlen < 0 || bitlen > maxbitlen)
			bitlen = maxbitlen;
		}
		else {
			bitlen = maxbitlen;
		}

		if (family == AF_INET) {
			if ((result = my_inet_pton (AF_INET, string, &sin)) <= 0)
				return (NULL);
			return (New_Prefix (AF_INET, &sin, bitlen));
		}

#ifdef HAVE_IPV6
		else if (family == AF_INET6) {
// Get rid of this with next IPv6 upgrade
#if defined(NT) && !defined(HAVE_INET_NTOP)
			inet6_addr(string, &sin6);
			return (New_Prefix (AF_INET6, &sin6, bitlen));
#else
			if ((result = inet_pton (AF_INET6, string, &sin6)) <= 0)
				return (NULL);
#endif /* NT */
			return (New_Prefix (AF_INET6, &sin6, bitlen));
		}
#endif /* HAVE_IPV6 */
		else
			return (NULL);
}