Attachment 403328 Details for Bug 632530

Simple test program resolving hostname / port and connecting addresses

ctest.c (text/plain), 2.63 KB, created by Marius Tomaschewski on 2010-12-03 12:23:12 UTC

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Creator: Marius Tomaschewski

Created: 2010-12-03 12:23:12 UTC

Size: 2.63 KB

patch

obsolete

>#include <stdio.h>
>#include <string.h>
>#include <stdlib.h>
>#include <errno.h>
>#include <sys/types.h>
>#include <sys/socket.h>
>#include <netinet/in.h>
>#include <arpa/inet.h>
>#include <unistd.h>
>#include <netdb.h>
>
>int main(int argc, char **argv)
>{
>	struct addrinfo hints;
>	struct addrinfo *result, *rp;
>	struct sockaddr_storage sas;
>	const char* ipvx = NULL;
>	int ret, sock;
>
>	if(argc < 3) {
>		fprintf(stderr, "usage: %s <hostname> <port>\n", argv[0]);
>		exit(1);
>	}
>
>	memset(&hints, 0, sizeof(struct addrinfo));
>	hints.ai_family = AF_UNSPEC;    /* Allow IPv4 or IPv6 */
>	hints.ai_socktype = SOCK_STREAM;
>
>	ret = getaddrinfo(argv[1], argv[2], &hints, &result);
>	if(ret != 0) {
>		fprintf(stderr, "getaddrinfo failed: %s\n", gai_strerror(ret));
>		exit(EXIT_FAILURE);
>	}
>
>	for (rp = result; rp != NULL; rp = rp->ai_next) {
>		char buf[INET6_ADDRSTRLEN + 1] = {'\0'};
>		const char *addr = NULL;
>		in_port_t   port = 0;
>
>		switch(rp->ai_family) {
>		case AF_INET: {
>			ipvx = "ipv4";
>			struct sockaddr_in *si;
>			si = ((struct sockaddr_in *)rp->ai_addr);
>			port = ntohs(si->sin_port);
>			addr = inet_ntop(rp->ai_family,
>				&si->sin_addr,
>				buf, sizeof(buf));
>		}
>		break;
>		case AF_INET6: {
>			ipvx = "ipv6";
>			struct sockaddr_in6 *si;
>			si = ((struct sockaddr_in6 *)rp->ai_addr);
>			port = ntohs(si->sin6_port);
>			addr = inet_ntop(rp->ai_family,
>				&si->sin6_addr,
>				buf, sizeof(buf));
>		}
>		break;
>		default:
>			fprintf(stderr, "* skipping %d family\n",
>				rp->ai_family);
>			continue;
>		break;
>		}
>
>		fprintf(stderr, "* trying out: %s<[%s]:%d>\n",
>			ipvx, addr, port);
>
>		sock = socket(rp->ai_family, rp->ai_socktype,
>				rp->ai_protocol);
>		if(sock == -1) {
>			fprintf(stderr,
>				"\tcan not create %s socket(%d, %d, %d): %s\n",
>				ipvx, rp->ai_family, rp->ai_socktype,
>				rp->ai_protocol, strerror(errno));
>			continue;
>		} else {
>			fprintf(stderr,
>				"\tcreated %s socket(%d, %d, %d)\n",
>				ipvx, rp->ai_family, rp->ai_socktype,
>				rp->ai_protocol);
>		}
>
>		memset(&sas, 0, sizeof(struct sockaddr_storage));
>		sas.ss_family = rp->ai_family;
>		ret = bind(sock, (struct sockaddr *)&sas, rp->ai_addrlen);
>		if(ret == -1) {
>			fprintf(stderr,
>				"\tcan not bind %s socket to 'any': %s\n",
>				ipvx, strerror(errno));
>			close(sock);
>			continue;
>		} else {
>			fprintf(stderr,
>				"\tbound %s socket to 'any'\n",
>				ipvx);
>		}
>
>		ret = connect(sock, rp->ai_addr, rp->ai_addrlen);
>		if(ret == -1) {
>			fprintf(stderr,
>				"\tcan not connect to %s<[%s]:%d>: %s\n",
>				ipvx, addr, port, strerror(errno));
>		} else {
>			fprintf(stderr,
>				"\tconnected to %s<[%s]:%d>\n",
>				ipvx, addr, port);
>		}
>
>		shutdown(sock, SHUT_RDWR);
>		close(sock);
>
>		fprintf(stderr, "\n");
>	}
>
>	return 0;
>}
>

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Attachments on bug 632530: 400929 | 403328 | 403332