if all the records found by a lookup are marked
as such then the response will have the "AA" bit set.
+Any DNS record line in a zone file can be prefixed with "TTL=" and
+a number of seconds (followed by one space).
+
*/
#include <ctype.h>
#include <errno.h>
#include <signal.h>
#include <arpa/nameser.h>
+#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/time.h>
#include <dirent.h>
+#include <unistd.h>
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
#define FALSE 0
#define TRUE 1
#define Ustrlen(s) (int)strlen(CCS(s))
#define Ustrncmp(s,t,n) strncmp(CCS(s),CCS(t),n)
#define Ustrncpy(s,t,n) strncpy(CS(s),CCS(t),n)
+#define Ustrtok(s,t) (uschar*)strtok(CS(s),CCS(t))
typedef struct zoneitem {
uschar *zone;
int value;
} tlist;
+#define DEFAULT_TTL 3600U
+
/* On some (older?) operating systems, the standard ns_t_xxx definitions are
not available, and only the older T_xxx ones exist in nameser.h. If ns_t_a is
not defined, assume we are in this state. A really old system might not even
BOOL rr_sec = FALSE;
BOOL rr_aa = FALSE;
int delay = 0;
+ uint ttl = DEFAULT_TTL;
p = buffer;
while (isspace(*p)) p++;
for (p += 6; *p >= '0' && *p <= '9'; p++) delay = delay*10 + *p - '0';
if (isspace(*p)) p++;
}
+ else if (Ustrncmp(p, US"TTL=", 4) == 0) /* TTL for record */
+ {
+ ttl = 0;
+ for (p += 4; *p >= '0' && *p <= '9'; p++) ttl = ttl*10 + *p - '0';
+ if (isspace(*p)) p++;
+ }
else
break;
}
*pk++ = 0;
*pk++ = 1; /* class = IN */
- pk += 4; /* TTL field; don't care */
+ *pk++ = (ttl >>24) & 255;
+ *pk++ = (ttl >>16) & 255;
+ *pk++ = (ttl >> 8) & 255;
+ *pk++ = ttl & 255;
rdlptr = pk; /* remember rdlength field */
pk += 2;
switch (tvalue)
{
case ns_t_soa:
- p = strtok(p, " ");
- ep = p + strlen(p);
+ p = Ustrtok(p, " ");
+ ep = p + Ustrlen(p);
if (ep[-1] != '.') sprintf(CS ep, "%s.", zone);
pk = packname(p, pk); /* primary ns */
- p = strtok(NULL, " ");
+ p = Ustrtok(NULL, " ");
pk = packname(p , pk); /* responsible mailbox */
- *(p += strlen(p)) = ' ';
+ *(p += Ustrlen(p)) = ' ';
while (isspace(*p)) p++;
pk = longfield(&p, pk); /* serial */
pk = longfield(&p, pk); /* refresh */
break;
case ns_t_a:
- for (i = 0; i < 4; i++)
- {
- value = 0;
- while (isdigit(*p)) value = value*10 + *p++ - '0';
- *pk++ = value;
- p++;
- }
+ inet_pton(AF_INET, CCS p, pk); /* FIXME: error checking */
+ pk += 4;
break;
- /* The only occurrence of a double colon is for ::1 */
case ns_t_aaaa:
- if (Ustrcmp(p, "::1") == 0)
- {
- memset(pk, 0, 15);
- pk += 15;
- *pk++ = 1;
- }
- else for (i = 0; i < 8; i++)
- {
- value = 0;
- while (isxdigit(*p))
- {
- value = value * 16 + toupper(*p) - (isdigit(*p)? '0' : '7');
- p++;
- }
- *pk++ = (value >> 8) & 255;
- *pk++ = value & 255;
- p++;
- }
+ inet_pton(AF_INET6, CCS p, pk); /* FIXME: error checking */
+ pk += 16;
break;
case ns_t_mx: