Attachment 262821 Details for Bug 462769

The test program discussed in the comment above.

dnstest.c (text/x-csrc), 1.31 KB, created by Luca Gugelmann on 2008-12-30 21:52:56 UTC

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Description:

Filename:

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Creator: Luca Gugelmann

Created: 2008-12-30 21:52:56 UTC

Size: 1.31 KB

patch

obsolete

>#include <sys/types.h>
>#include <sys/socket.h>
>#include <netdb.h>
>#include <stdlib.h>
>#include <stdio.h>
>#include <string.h>
>
>void lookup(int af, const char* host)
>{
>    struct addrinfo hints;
>    struct addrinfo *result, *rp;
>    static char buf[64];
>
>    memset(&hints, 0, sizeof(struct addrinfo));
>    hints.ai_family = af;
>    hints.ai_socktype = SOCK_DGRAM;
>    hints.ai_flags = 0;
>    hints.ai_protocol = 0;
>
>    int s = getaddrinfo(host, NULL, &hints, &result);
>    if (s != 0) {
>        fprintf(stderr, "  getaddrinfo: %s\n", gai_strerror(s));
>        return;
>    }
>
>    for (rp = result; rp != NULL; rp = rp->ai_next) {
>        void *addr = 0;
>        if ( rp->ai_family == AF_INET)
>            addr = &((struct sockaddr_in*)(rp->ai_addr))->sin_addr;
>        if ( rp->ai_family == AF_INET6)
>            addr = &((struct sockaddr_in6*)(rp->ai_addr))->sin6_addr;
>                
>        inet_ntop(rp->ai_family, addr, buf, sizeof buf );
>        printf("  %s\n", buf);
>    }
>    freeaddrinfo(result);
>}
>
>
>int main(int argc, char *argv[])
>{
>    if (argc < 2) {
>        fprintf(stderr, "Usage: %s host\n", argv[0]);
>        exit(EXIT_FAILURE);
>    }
>
>    printf("AF_INET:\n");
>    lookup(AF_INET, argv[1]);
>    printf("AF_INET6:\n");
>    lookup(AF_INET6, argv[1]);
>    printf("AF_UNSPEC:\n");
>    lookup(AF_UNSPEC, argv[1]);
>    return 0;
>}

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Attachments on bug 462769: 262821