45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
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/* this program is used to test that getaddrinfo() works correctly
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* without a 'hints' argument
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <stdio.h> /* for printf */
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#include <string.h> /* for memset */
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#include <netinet/in.h> /* for IPPROTO_TCP */
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#define SERVER_NAME "www.android.com"
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#define PORT_NUMBER "9999"
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int main(void)
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{
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struct addrinfo hints;
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struct addrinfo* res;
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int ret;
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/* first, try without any hints */
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ret = getaddrinfo( SERVER_NAME, PORT_NUMBER, NULL, &res);
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if (ret != 0) {
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printf("first getaddrinfo returned error: %s\n", gai_strerror(ret));
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return 1;
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}
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freeaddrinfo(res);
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/* now try with the hints */
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_UNSPEC;
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hints.ai_socktype = SOCK_STREAM;
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hints.ai_protocol = IPPROTO_TCP;
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ret = getaddrinfo( SERVER_NAME, PORT_NUMBER, &hints, &res );
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if (ret != 0) {
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printf("second getaddrinfo returned error: %s\n", gai_strerror(ret));
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return 1;
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}
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return 0;
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}
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