mirror of
https://gitee.com/acl-dev/acl.git
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74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
#include "lib_acl.h"
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#include <stdio.h>
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#include <getopt.h>
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#include <errno.h>
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#include <string.h>
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static void resolve(const char* domain, int socktype, int family)
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{
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ACL_ITER iter;
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int herr;
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ACL_DNS_DB* db = acl_gethostbyname2(domain, socktype, family, &herr);
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printf("%s\r\n", domain);
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if (db == NULL) {
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printf("acl_gethostbyname %s error %s\r\n",
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domain, acl_netdb_strerror(herr));
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return;
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}
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acl_foreach(iter, db) {
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const ACL_HOSTNAME* hn = (const ACL_HOSTNAME*) iter.data;
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if (hn->saddr.sa.sa_family == AF_INET) {
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printf(" ip: %s, ttl: %d, type=A\r\n", hn->ip, hn->ttl);
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} else if (hn->saddr.sa.sa_family == AF_INET6) {
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printf(" ip: %s, ttl: %d, type=AAAA\r\n", hn->ip, hn->ttl);
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} else {
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printf(" ip: %s, ttl: %d, type=unknown\r\n", hn->ip, hn->ttl);
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}
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}
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acl_netdb_free(db);
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}
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static void usage(const char* procname)
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{
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printf("usage: %s -h help -n domain\r\n"
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" -t [use TCP if been set, or use UDP]\r\n"
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" -t [lookup for IPV6 if been set or for IPV4\r\n", procname);
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}
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int main(int argc, char* argv[])
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{
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int ch, socktype = SOCK_DGRAM, family = PF_UNSPEC;
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char buf[256];
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snprintf(buf, sizeof(buf), "www.baidu.com");
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while ((ch = getopt(argc, argv, "hn:t46")) > 0) {
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switch (ch) {
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case 'h':
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usage(argv[0]);
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return 0;
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case 'n':
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snprintf(buf, sizeof(buf), "%s", optarg);
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break;
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case 't':
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socktype = SOCK_STREAM;
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break;
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case '4':
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family = PF_INET;
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break;
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case '6':
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family = PF_INET6;
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break;
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default:
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break;
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}
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}
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resolve(buf, socktype, family);
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return (0);
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}
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