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-rw-r--r--ares/ahost.c42
1 files changed, 34 insertions, 8 deletions
diff --git a/ares/ahost.c b/ares/ahost.c
index e0c32d9e9..40cd08439 100644
--- a/ares/ahost.c
+++ b/ares/ahost.c
@@ -1,5 +1,7 @@
/* Copyright 1998 by the Massachusetts Institute of Technology.
*
+ * $Id$
+ *
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
@@ -30,6 +32,10 @@
#include <stdlib.h>
#include <string.h>
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#endif
+
#include "ares.h"
#include "ares_dns.h"
#include "inet_ntop.h"
@@ -52,7 +58,7 @@ static void usage(void);
int main(int argc, char **argv)
{
ares_channel channel;
- int status, nfds;
+ int status, nfds, c, addr_family = AF_INET;
fd_set read_fds, write_fds;
struct timeval *tvp, tv;
struct in_addr addr4;
@@ -64,7 +70,28 @@ int main(int argc, char **argv)
WSAStartup(wVersionRequested, &wsaData);
#endif
- if (argc <= 1)
+ while ((c = getopt(argc,argv,"t:h")) != -1)
+ {
+ switch (c)
+ {
+ case 't':
+ if (!strcasecmp(optarg,"a"))
+ addr_family = AF_INET;
+ else if (!strcasecmp(optarg,"aaaa"))
+ addr_family = AF_INET6;
+ else
+ usage();
+ break;
+ case 'h':
+ default:
+ usage();
+ break;
+ }
+ }
+
+ argc -= optind;
+ argv += optind;
+ if (argc < 1)
usage();
status = ares_init(&channel);
@@ -75,7 +102,7 @@ int main(int argc, char **argv)
}
/* Initiate the queries, one per command-line argument. */
- for (argv++; *argv; argv++)
+ for ( ; *argv; argv++)
{
if (ares_inet_pton(AF_INET, *argv, &addr4) == 1)
{
@@ -89,8 +116,7 @@ int main(int argc, char **argv)
}
else
{
- /* assume user wants A-records */
- ares_gethostbyname(channel, *argv, AF_INET, callback, *argv);
+ ares_gethostbyname(channel, *argv, addr_family, callback, *argv);
}
}
@@ -132,8 +158,8 @@ static void callback(void *arg, int status, struct hostent *host)
{
int i;
- printf (", Aliases: ");
- for (i = 0; host->h_aliases[i]; i++)
+ printf (", Aliases: ");
+ for (i = 0; host->h_aliases[i]; i++)
printf("%s ", host->h_aliases[i]);
}
#endif
@@ -143,6 +169,6 @@ static void callback(void *arg, int status, struct hostent *host)
static void usage(void)
{
- fprintf(stderr, "usage: ahost {host|addr} ...\n");
+ fprintf(stderr, "usage: ahost [-t {a|aaaa}] {host|addr} ...\n");
exit(1);
}