1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
/*
* nsd-checkzone.c -- nsd-checkzone(8) checks zones for syntax errors
*
* Copyright (c) 2013, NLnet Labs. All rights reserved.
*
* See LICENSE for the license.
*
*/
#include "config.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <errno.h>
#include "nsd.h"
#include "options.h"
#include "util.h"
#include "zonec.h"
#include "ixfr.h"
#include "ixfrcreate.h"
#include "difffile.h"
struct nsd nsd;
/*
* Print the help text.
*
*/
static void
usage (void)
{
fprintf(stderr, "Usage: nsd-checkzone [-p] <zone name> <zone file>\n");
fprintf(stderr, "\t-p\tprint the zone if the zone is ok\n");
fprintf(stderr, "\t-i <old zone file>\tcreate an IXFR from the differences between the\n\t\told zone file and the new zone file. Writes to \n\t\t<zonefile>.ixfr and renames other <zonefile>.ixfr files to\n\t\t<zonefile>.ixfr.num+1.\n");
fprintf(stderr, "\t-n <ixfr number>\tnumber of IXFR versions to store, at most.\n\t\tdefault %d.\n", (int)IXFR_NUMBER_DEFAULT);
fprintf(stderr, "\t-s <ixfr size>\tsize of IXFR to store, at most. default %d.\n", (int)IXFR_SIZE_DEFAULT);
fprintf(stderr, "Version %s. Report bugs to <%s>.\n",
PACKAGE_VERSION, PACKAGE_BUGREPORT);
}
static void
check_zone(struct nsd* nsd, const char* name, const char* fname, FILE *out,
const char* oldzone, uint32_t ixfr_number, uint64_t ixfr_size)
{
const dname_type* dname;
zone_options_type* zo;
zone_type* zone;
unsigned errors;
struct ixfr_create* ixfrcr = NULL;
/* init*/
nsd->db = namedb_open(nsd->options);
dname = dname_parse(nsd->options->region, name);
if(!dname) {
/* parse failure */
error("cannot parse zone name '%s'", name);
}
zo = zone_options_create(nsd->options->region);
memset(zo, 0, sizeof(*zo));
zo->node.key = dname;
zo->name = name;
zone = namedb_zone_create(nsd->db, dname, zo);
if(oldzone) {
errors = zonec_read(nsd->db, nsd->db->domains, name, oldzone, zone);
if(errors > 0) {
printf("zone %s file %s has %u errors\n", name, oldzone, errors);
exit(1);
}
ixfrcr = ixfr_create_start(zone, fname, ixfr_size, 1);
if(!ixfrcr) {
error("out of memory");
}
delete_zone_rrs(nsd->db, zone);
}
/* read the zone */
errors = zonec_read(nsd->db, nsd->db->domains, name, fname, zone);
if(errors > 0) {
printf("zone %s file %s has %u errors\n", name, fname, errors);
ixfr_create_cancel(ixfrcr);
#ifdef MEMCLEAN /* otherwise, the OS collects memory pages */
namedb_close(nsd->db);
region_destroy(nsd->options->region);
#endif
exit(1);
}
if(ixfrcr) {
if(!ixfr_create_perform(ixfrcr, zone, 0, nsd, fname,
ixfr_number)) {
#ifdef MEMCLEAN /* otherwise, the OS collects memory pages */
namedb_close(nsd->db);
region_destroy(nsd->options->region);
ixfr_create_free(ixfrcr);
#endif
error("could not create IXFR");
}
printf("zone %s created IXFR %s.ixfr\n", name, fname);
ixfr_create_free(ixfrcr);
}
if (out) {
print_rrs(out, zone);
printf("; ");
}
printf("zone %s is ok\n", name);
namedb_close(nsd->db);
}
/* dummy functions to link */
int writepid(struct nsd * ATTR_UNUSED(nsd))
{
return 0;
}
void unlinkpid(const char * ATTR_UNUSED(file), const char* ATTR_UNUSED(username))
{
}
void bind8_stats(struct nsd * ATTR_UNUSED(nsd))
{
}
void sig_handler(int ATTR_UNUSED(sig))
{
}
extern char *optarg;
extern int optind;
int
main(int argc, char *argv[])
{
/* Scratch variables... */
int c;
int print_zone = 0;
uint32_t ixfr_number = IXFR_NUMBER_DEFAULT;
uint64_t ixfr_size = IXFR_SIZE_DEFAULT;
char* oldzone = NULL;
struct nsd nsd;
memset(&nsd, 0, sizeof(nsd));
log_init("nsd-checkzone");
/* Parse the command line... */
while ((c = getopt(argc, argv, "hi:n:ps:")) != -1) {
switch (c) {
case 'h':
usage();
exit(0);
case 'i':
oldzone = optarg;
break;
case 'n':
ixfr_number = (uint32_t)atoi(optarg);
break;
case 'p':
print_zone = 1;
break;
case 's':
ixfr_size = (uint64_t)atoi(optarg);
break;
case '?':
default:
usage();
exit(1);
}
}
argc -= optind;
argv += optind;
/* Commandline parse error */
if (argc != 2) {
fprintf(stderr, "wrong number of arguments.\n");
usage();
exit(1);
}
nsd.options = nsd_options_create(region_create_custom(xalloc, free,
DEFAULT_CHUNK_SIZE, DEFAULT_LARGE_OBJECT_SIZE,
DEFAULT_INITIAL_CLEANUP_SIZE, 1));
if (verbosity == 0)
verbosity = nsd.options->verbosity;
check_zone(&nsd, argv[0], argv[1], print_zone ? stdout : NULL,
oldzone, ixfr_number, ixfr_size);
region_destroy(nsd.options->region);
/* yylex_destroy(); but, not available in all versions of flex */
exit(0);
}
|
