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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/dns/dns.h"
#include "libc/log/log.h"
#include "libc/runtime/runtime.h"
#include "libc/sock/sock.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/af.h"
#include "libc/sysv/consts/ai.h"
#include "libc/sysv/consts/ipproto.h"
#include "libc/sysv/consts/sock.h"
#include "tool/decode/lib/flagger.h"
#include "tool/decode/lib/idname.h"
#include "tool/decode/lib/socknames.h"
void lookup(const char *name) {
struct addrinfo hints = (struct addrinfo){.ai_family = AF_INET,
.ai_socktype = SOCK_STREAM,
.ai_protocol = IPPROTO_TCP,
.ai_flags = AI_NUMERICSERV};
struct addrinfo *addrs = NULL;
if (getaddrinfo(name, "80", &hints, &addrs) == -1) {
perror("getaddrinfo");
exit(1);
}
if (addrs) {
for (struct addrinfo *addr = addrs; addr; addr = addr->ai_next) {
const unsigned char *ip =
addr->ai_family == AF_INET
? (const unsigned char *)&((struct sockaddr_in *)addr->ai_addr)
->sin_addr
: (const unsigned char *)"\0\0\0\0";
printf("%-12s = %s\n", "ai_flags",
RecreateFlags(kAddrInfoFlagNames, addr->ai_flags), addr->ai_flags);
printf("%-12s = %s (%d)\n", "ai_family",
findnamebyid(kAddressFamilyNames, addr->ai_family),
addr->ai_family);
printf("%-12s = %s (%d)\n", "ai_socktype",
findnamebyid(kSockTypeNames, addr->ai_socktype),
addr->ai_socktype);
printf("%-12s = %s (%d)\n", "ai_protocol",
findnamebyid(kProtocolNames, addr->ai_protocol),
addr->ai_protocol);
printf("%-12s = %d\n", "ai_addrlen", addr->ai_addrlen);
printf("%-12s = %hhu.%hhu.%hhu.%hhu\n", "ai_addr", ip[0], ip[1], ip[2],
ip[3]);
printf("%-12s = %s\n", "ai_canonname", addr->ai_canonname);
}
freeaddrinfo(addrs);
} else {
fprintf(stderr, "%s: %s\n", name, "no results");
}
}
int main(int argc, char *argv[]) {
int i;
showcrashreports();
for (i = 1; i < argc; ++i) lookup(argv[i]);
return 0;
}