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/*
* Copyright 2005-2012 SPARTA, Inc. All rights reserved.
* See the COPYING file distributed with this software for details.
*
* Author: Abhijit Hayatnagarkar
*
* A command-line tool for testing the val_gethostbyname*() functions.
*/
#include "validator/validator-config.h"
#include <validator/validator.h>
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#define NAME "gethost"
#define VERS "version: 1.0"
#define DTVERS "DNSSEC-Tools Version: 1.8"
#ifdef HAVE_GETOPT_LONG
// Program options
static struct option prog_options[] = {
{"help", 0, 0, 'h'},
{"family", 0, 0, 'f'},
{"reentrant", 0, 0, 'r'},
{"output", 0, 0, 'o'},
{"Version", 0, 0, 'V'},
{0, 0, 0, 0}
};
#endif
#define AUX_BUFLEN 16000
void
usage(char *progname)
{
/* *INDENT-OFF* */
fprintf(stderr, "Usage: %s [options] name\n", progname);
fprintf(stderr, "Options:\n");
fprintf(stderr, "\t-h, --help display usage and exit\n");
fprintf(stderr, "\t-r, --reentrant use reentrant versions of functions\n");
fprintf(stderr, "\t-f, --family=[AF_INET|AF_INET6] address family\n");
fprintf(stderr, "\t AF_INET for IPv4 addresses,\n");
fprintf(stderr, "\t and AF_INET6 for IPv6 addresses\n");
fprintf(stderr,
"\t-o, --output=<debug-level>:<dest-type>[:<dest-options>]\n"
"\t <debug-level> is 1-7, corresponding to syslog levels\n"
"\t <dest-type> is one of file, net, syslog, stderr, stdout\n"
"\t <dest-options> depends on <dest-type>\n"
"\t file:<file-name> (opened in append mode)\n"
"\t net[:<host-name>:<host-port>] (127.0.0.1:1053\n"
"\t syslog[:facility] (0-23 (default 1 USER))\n" );
/* *INDENT-ON* */
fprintf(stderr, "\t-V, --Version display version and exit\n");
}
void
version(void)
{
fprintf(stderr, "%s: %s\n", NAME,VERS);
fprintf(stderr, "%s\n", DTVERS);
}
int
main(int argc, char *argv[])
{
struct hostent hentry;
char auxbuf[AUX_BUFLEN];
struct hostent *result = NULL;
int i;
val_status_t val_status;
int herrno = 0;
int familyspecified = 0;
int usereentrant = 0;
char *name;
int af = AF_INET;
char buf[INET6_ADDRSTRLEN];
size_t buflen = INET6_ADDRSTRLEN;
int retval = 0;
val_log_t *logp;
memset(&hentry, 0, sizeof(struct hostent));
memset(auxbuf, 0, AUX_BUFLEN);
// Parse the command line
while (1) {
int c;
#ifdef HAVE_GETOPT_LONG
int opt_index = 0;
#ifdef HAVE_GETOPT_LONG_ONLY
c = getopt_long_only(argc, argv, "hrf:o:V",
prog_options, &opt_index);
#else
c = getopt_long(argc, argv, "hrf:o:V", prog_options, &opt_index);
#endif
#else /* only have getopt */
c = getopt(argc, argv, "hrf:o:V");
#endif
if (c == -1) {
break;
}
switch (c) {
case 'h':
usage(argv[0]);
return -1;
case 'f':
familyspecified = 1;
if (strncasecmp(optarg, "AF_INET", strlen("AF_INET")) == 0) {
af = AF_INET;
} else if (strncasecmp(optarg, "AF_INET6", strlen("AF_INET6")) == 0) {
af = AF_INET6;
} else {
fprintf(stderr, "Invalid family %s\n", optarg);
usage(argv[0]);
return -1;
}
break;
case 'r':
usereentrant = 1;
break;
case 'o':
logp = val_log_add_optarg(optarg, 1);
if (NULL == logp) { /* err msg already logged */
usage(argv[0]);
return -1;
}
break;
case 'V':
version();
return 0;
default:
fprintf(stderr, "Invalid option %s\n", argv[optind - 1]);
usage(argv[0]);
return -1;
}
}
if (optind < argc) {
name = argv[optind++];
} else {
fprintf(stderr, "Error: name not specified\n");
usage(argv[0]);
return -1;
}
if (usereentrant) {
#ifdef HAVE_GETHOSTBYNAME2
if (familyspecified)
retval =
val_gethostbyname2_r(NULL, name, af, &hentry, auxbuf,
AUX_BUFLEN, &result, &herrno,
&val_status);
else
#endif
retval =
val_gethostbyname_r(NULL, name, &hentry, auxbuf,
AUX_BUFLEN, &result, &herrno,
&val_status);
} else {
if (familyspecified)
result = val_gethostbyname2(NULL, name, af, &val_status);
else
result = val_gethostbyname(NULL, name, &val_status);
}
if (result != NULL) {
const char *addr = NULL;
printf("\n\th_name = %s\n", result->h_name);
if (result->h_aliases) {
printf("\th_aliases = \n");
for (i = 0; result->h_aliases[i] != 0; i++) {
printf("\t\t[%d] = %s\n", i, result->h_aliases[i]);
}
} else
printf("\th_aliases = NULL\n");
printf("\th_length = %d\n", result->h_length);
printf("\th_addr_list = \n");
if (result->h_addrtype == AF_INET) {
struct sockaddr_in sa;
printf("\th_addrtype = AF_INET\n");
for (i = 0; result->h_addr_list[i] != 0; i++) {
memset(buf, 0, buflen);
memcpy(&sa.sin_addr, result->h_addr_list[i],
sizeof(sa.sin_addr));
INET_NTOP(AF_INET, ((struct sockaddr *)&sa), sizeof(sa),
buf, buflen, addr);
printf("\t\t[%d] = %s\n", i, addr);
}
}
#ifdef VAL_IPV6
else if (result->h_addrtype == AF_INET6) {
struct sockaddr_in6 sa6;
printf("\th_addrtype = AF_INET6\n");
for (i = 0; result->h_addr_list[i] != 0; i++) {
memset(buf, 0, buflen);
memcpy(&sa6.sin6_addr, result->h_addr_list[i],
sizeof(sa6.sin6_addr));
INET_NTOP(AF_INET6, ((struct sockaddr *)&sa6), sizeof(sa6),
buf, buflen, addr);
printf("\t\t[%d] = %s\n", i, addr);
}
}
#endif
else {
printf("\th_addrtype = %d\n", result->h_addrtype);
}
} else {
printf("result is NULL\n");
}
printf("Validation status = %s\n", p_val_error(val_status));
if (usereentrant) {
#ifdef HAVE_HSTRERROR
printf("h_errno = %s\n", hstrerror(herrno));
#else
printf("h_errno = %d\n", herrno);
#endif
} else {
#ifdef HAVE_HSTRERROR
printf("h_errno = %s\n", hstrerror(h_errno));
#else
printf("h_errno = %d\n", h_errno);
#endif
}
if (val_isvalidated(val_status))
return 2;
if (val_istrusted(val_status))
return 1;
return 0;
}
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