mirror of
https://git.savannah.gnu.org/git/gnulib.git
synced 2025-08-20 11:01:20 +03:00
100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
#include "config.h"
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#include "getaddrinfo.h"
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#include "inet_ntop.h"
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#include <stdio.h>
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#include <string.h>
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int simple (char *host, char *service)
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{
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char buf[BUFSIZ];
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struct addrinfo hints;
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struct addrinfo *ai0, *ai;
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int res;
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printf ("Finding %s service %s...\n", host, service);
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memset (&hints, 0, sizeof (hints));
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hints.ai_flags = AI_CANONNAME;
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hints.ai_family = AF_UNSPEC;
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hints.ai_socktype = SOCK_STREAM;
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res = getaddrinfo (host, service, 0, &ai0);
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printf ("res %d: %s\n", res, gai_strerror (res));
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if (res != 0)
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return 1;
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for (ai = ai0; ai; ai = ai->ai_next)
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{
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printf ("\tflags %x\n", ai->ai_flags);
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printf ("\tfamily %x\n", ai->ai_family);
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printf ("\tsocktype %x\n", ai->ai_socktype);
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printf ("\tprotocol %x\n", ai->ai_protocol);
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printf ("\taddrlen %d: ", ai->ai_addrlen);
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printf ("\tFound %s\n",
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inet_ntop (ai->ai_family,
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&((struct sockaddr_in *)
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ai->ai_addr)->sin_addr,
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buf, sizeof (buf) - 1));
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if (ai->ai_canonname)
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printf ("\tFound %s...\n", ai->ai_canonname);
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{
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char ipbuf[BUFSIZ];
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char portbuf[BUFSIZ];
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res = getnameinfo (ai->ai_addr, ai->ai_addrlen,
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ipbuf, sizeof (ipbuf) - 1,
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portbuf, sizeof (portbuf) - 1,
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NI_NUMERICHOST|NI_NUMERICSERV);
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printf ("\t\tgetnameinfo %d: %s\n", res, gai_strerror (res));
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if (res == 0)
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{
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printf ("\t\tip %s\n", ipbuf);
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printf ("\t\tport %s\n", portbuf);
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}
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}
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}
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freeaddrinfo (ai0);
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return 0;
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}
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#define HOST1 "www.gnu.org"
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#define SERV1 "http"
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#define HOST2 "www.ibm.com"
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#define SERV2 "https"
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#define HOST3 "microsoft.com"
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#define SERV3 "http"
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#define HOST4 "google.org"
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#define SERV4 "ldap"
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int main (void)
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{
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#if _WIN32
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{
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WORD requested;
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WSADATA data;
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int err;
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requested = MAKEWORD (1, 1);
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err = WSAStartup (requested, &data);
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if (err != 0)
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return 1;
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if (data.wVersion < requested)
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{
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WSACleanup ();
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return 2;
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}
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}
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#endif
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return simple (HOST1, SERV1)
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+ simple (HOST2, SERV2)
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+ simple (HOST3, SERV3)
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+ simple (HOST4, SERV4);
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}
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