int sockconnect(struct addrinfo *res,char *host,in_port_t *uport,FILE *fp){
struct addrinfo *cai;
int s = -1;
cai = res;
while(cai != NULL){
getipaddrstr(cai,host,uport,STRSIZE);
printf("Connect \n");
printaddrinfo(cai,host,NULL,NULL,fp);
s = socket(cai->ai_family,cai->ai_socktype,cai->ai_protocol);
if(s == -1){
perror("socket create failed");
return -1;
}
if(connect(s,cai->ai_addr,cai->ai_addrlen)==-1) {
perror("Connect Fail");
close(s);
s = -1;
cai = cai -> ai_next;
continue;
}else{
return s;
}
}
fprintf(stderr,"No more addrinfo to connect to\n");
return -1;
}
int main(int argc, char **argv)
{
struct my_addrinfo *res = NULL, hints;
int gaie;
(void)argc;
(void)argv;
memset(&hints, 0x00, sizeof(struct my_addrinfo));
hints.ai_family = AF_INET;
#ifdef _WIN32
{
#ifdef USE_WINSOCK2
const WORD VerNeed = MAKEWORD(2,2);
#else
const WORD VerNeed = MAKEWORD(1,1);
#endif
WSADATA WSAData;
WSAStartup(VerNeed, &WSAData);
}
#endif
printf("-----------------------------------------------------------\n");
#ifndef _WIN32 //NULL as res crashes Win32
gaie = I_getaddrinfo(NULL, NULL, &hints, NULL);
if (gaie != EAI_NONAME)
printf("NULLs test returned: %s(%d)\n", gai_strerror(gaie), gaie);
I_freeaddrinfo(res);
#endif
#if 0 //NULL as res crashes
gaie = I_getaddrinfo("localhost", "5029", NULL, NULL);
if (gaie == 0)
printf("NULL crashes: %s(%d)\n", gai_strerror(gaie), gaie);
I_freeaddrinfo(res);
#endif
gaie = I_getaddrinfo("localhost", NULL, &hints, &res);
//if (gaie != 0)
printf("NULL service test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
gaie = I_getaddrinfo(NULL, "5029", &hints, &res);
//if (gaie != 0)
printf("NULLs test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
gaie = I_getaddrinfo("localhost", "5029", &hints, &res);
//if (gaie != 0)
printf("no hints test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
printf("-----------------------------------------------------------\n");
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
gaie = I_getaddrinfo("localhost", NULL, &hints, &res);
//if (gaie != 0)
printf("NULL service test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
gaie = I_getaddrinfo(NULL, "5029", &hints, &res);
//if (gaie != 0)
printf("NULLs test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
gaie = I_getaddrinfo("localhost", "5029", &hints, &res);
//if (gaie != 0)
printf("no hints test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
printf("-----------------------------------------------------------\n");
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = IPPROTO_UDP;
gaie = I_getaddrinfo("localhost", NULL, &hints, &res);
//if (gaie != 0)
printf("NULL service test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
gaie = I_getaddrinfo(NULL, "5029", &hints, &res);
//if (gaie != 0)
printf("NULLs test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
gaie = I_getaddrinfo("localhost", "5029", &hints, &res);
//if (gaie != 0)
printf("no hints test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
printf("-----------------------------------------------------------\n");
hints.ai_flags = AI_NUMERICHOST;
gaie = I_getaddrinfo("localhost", NULL, &hints, &res);
//if (gaie != 0)
printf("NULL service test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
gaie = I_getaddrinfo(NULL, "5029", &hints, &res);
//if (gaie != 0)
printf("NULLs test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
gaie = I_getaddrinfo("localhost", "5029", &hints, &res);
//if (gaie != 0)
printf("no hints test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
printf("-----------------------------------------------------------\n");
gaie = I_getaddrinfo("127.0.0.1", NULL, &hints, &res);
//if (gaie != 0)
printf("NULL service test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
gaie = I_getaddrinfo("127.0.0.1", "5029", &hints, &res);
//if (gaie != 0)
printf("no hints test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
printf("-----------------------------------------------------------\n");
gaie = I_getaddrinfo("255.255.255.255", NULL, &hints, &res);
//if (gaie != 0)
printf("NULL service test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
gaie = I_getaddrinfo("255.255.255.255", "5029", &hints, &res);
//if (gaie != 0)
printf("no hints test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
printf("-----------------------------------------------------------\n");
hints.ai_flags = AI_PASSIVE;
gaie = I_getaddrinfo("0.0.0.0", NULL, &hints, &res);
//if (gaie != 0)
printf("NULL service test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
gaie = I_getaddrinfo("0.0.0.0", "5029", &hints, &res);
//if (gaie != 0)
printf("no hints test returned: %s(%d)\n", gai_strerror(gaie), gaie);
printaddrinfo(res);
I_freeaddrinfo(res); res = NULL;
return 0;
}
int
main(int argc, char **argv)
{
static const struct addrinfo zero_addrinfo;
struct addrinfo hints = zero_addrinfo;
struct addrinfo *addrinfo;
const char *hostname = NULL, *service = NULL;
int ch;
int error;
setprogname(argv[0]);
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = 0;
hints.ai_protocol = 0;
hints.ai_flags = 0;
while ((ch = getopt(argc, argv, "cf:nNp:Ps:t:")) != -1) {
switch (ch) {
case 'c':
hints.ai_flags |= AI_CANONNAME;
break;
case 'f':
if (!parse_af(optarg, &hints.ai_family)) {
warnx("invalid address family: %s", optarg);
usage();
}
break;
case 'n':
hints.ai_flags |= AI_NUMERICHOST;
break;
case 'N':
hints.ai_flags |= AI_NUMERICSERV;
break;
case 's':
service = optarg;
break;
case 'p':
if (!parse_protocol(optarg, &hints.ai_protocol)) {
warnx("invalid protocol: %s", optarg);
usage();
}
break;
case 'P':
hints.ai_flags |= AI_PASSIVE;
break;
case 't':
if (!parse_socktype(optarg, &hints.ai_socktype)) {
warnx("invalid socket type: %s", optarg);
usage();
}
break;
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
if (!((argc == 1) || ((argc == 0) && (hints.ai_flags & AI_PASSIVE))))
usage();
if (argc == 1)
hostname = argv[0];
if (service != NULL) {
char *p;
if ((p = strchr(service, '/')) != NULL) {
if (hints.ai_protocol != 0) {
warnx("protocol already specified");
usage();
}
*p = '\0';
p++;
if (!parse_protocol(p, &hints.ai_protocol)) {
warnx("invalid protocol: %s", p);
usage();
}
}
}
error = getaddrinfo(hostname, service, &hints, &addrinfo);
if (error)
errx(1, "%s", gai_strerror(error));
if ((hints.ai_flags & AI_CANONNAME) && (addrinfo != NULL)) {
if (printf("canonname %s\n", addrinfo->ai_canonname) < 0)
err(1, "printf");
}
printaddrinfo(addrinfo);
freeaddrinfo(addrinfo);
return 0;
}
