X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/ce889807c90746896f1310e9f4957215f46f7836..44876330aea2aa8deb3d8b714d7b710d456201f6:/test/src/fakens.c

diff --git a/test/src/fakens.c b/test/src/fakens.c
index 583b01282..3d6f513fc 100644
--- a/test/src/fakens.c
+++ b/test/src/fakens.c
@@ -59,7 +59,7 @@ as such then the response will have the "AD" bit set.
 
 Any DNS record line can be prefixed with "NXDOMAIN ";
 The record will be ignored (but the prefix set still applied);
-This lets us return a DNSSEC NXDOMAIN.
+This lets us return a DNSSEC NXDOMAIN (=> HOST_NOT_FOUND).
 
 Any DNS record line can be prefixed with "AA "
 if all the records found by a lookup are marked
@@ -313,8 +313,8 @@ Arguments:
   qtypelen    the length of qtype
   pkptr       points to the output buffer pointer; this is updated
   countptr    points to the record count; this is updated
-  dnssec      points to the AD flag indicator; this is updated
-  aa          points to the AA flag indicator; this is updated
+  dnssec_p    points to the AD flag indicator; this is updated
+  aa_p        points to the AA flag indicator; this is updated
 
 Returns:      0 on success, else HOST_NOT_FOUND or NO_DATA or NO_RECOVERY or
               PASS_ON - the latter if a "PASS ON NOT FOUND" line is seen
@@ -322,14 +322,14 @@ Returns:      0 on success, else HOST_NOT_FOUND or NO_DATA or NO_RECOVERY or
 
 static int
 find_records(FILE *f, uschar *zone, uschar *domain, uschar *qtype,
-  int qtypelen, uschar **pkptr, int *countptr, BOOL * dnssec, BOOL * aa)
+  int qtypelen, uschar **pkptr, int *countptr, BOOL * dnssec_p, BOOL * aa_p)
 {
 int yield = HOST_NOT_FOUND;
 int domainlen = Ustrlen(domain);
 BOOL pass_on_not_found = FALSE;
 tlist *typeptr;
 uschar *pk = *pkptr;
-uschar buffer[256];
+uschar buffer[512];
 uschar rrdomain[256];
 uschar RRdomain[256];
 
@@ -448,8 +448,8 @@ while (fgets(CS buffer, sizeof(buffer), f) != NULL)
   if (yield == HOST_NOT_FOUND)
     {
     yield = NO_DATA;
-    if (dnssec) *dnssec = TRUE;     /* cancelled by first nonsecure rec found */
-    if (aa) *aa = TRUE;             /* cancelled by first non-aa rec found */
+    if (dnssec_p) *dnssec_p = TRUE;     /* cancelled by first nonsecure rec found */
+    if (aa_p) *aa_p = TRUE;             /* cancelled by first non-aa rec found */
     }
 
   /* Compare RR types; a CNAME record is always returned */
@@ -468,11 +468,11 @@ while (fgets(CS buffer, sizeof(buffer), f) != NULL)
   if (delay)
     millisleep(delay);
 
-  if (dnssec && !rr_sec)
-    *dnssec = FALSE;                    /* cancel AD return */
+  if (dnssec_p && !rr_sec)
+    *dnssec_p = FALSE;                    /* cancel AD return */
 
-  if (aa && !rr_aa)
-    *aa = FALSE;                        /* cancel AA return */
+  if (aa_p && !rr_aa)
+    *aa_p = FALSE;                        /* cancel AA return */
 
   if (rr_ignore) continue;
 
@@ -536,10 +536,15 @@ while (fgets(CS buffer, sizeof(buffer), f) != NULL)
       break;
 
     case ns_t_txt:
-      pp = pk++;
-      if (*p == '"') p++;   /* Should always be the case */
-      while (*p != 0 && *p != '"') *pk++ = *p++;
-      *pp = pk - pp - 1;
+      while (*p)
+        {
+        pp = pk++;            /* Skip the size byte in output */
+        if (*p == '"') p++;   /* Should always be the case */
+        while (*p && *p != '"') *pk++ = *p++;
+        *pp = pk - pp - 1;    /* fill in the size */
+        p++;                  /* skip the closing doublequote */
+        while (isspace(*p)) p++; /* next chunk start */
+        }
       break;
 
     case ns_t_tlsa:
@@ -668,8 +673,8 @@ uschar qtype[12];
 uschar packet[2048 * 32 + 32];
 HEADER *header = (HEADER *)packet;
 uschar *pk = packet;
-BOOL dnssec;
-BOOL aa;
+BOOL dnssec = FALSE;
+BOOL aa = FALSE;
 
 signal(SIGALRM, alarmfn);
 
@@ -683,15 +688,14 @@ if (argc != 4)
 
 (void)sprintf(CS buffer, "%s/dnszones", argv[1]);
 
-d = opendir(CCS buffer);
-if (d == NULL)
+if (!(d = opendir(CCS buffer)))
   {
   fprintf(stderr, "fakens: failed to opendir %s: %s\n", buffer,
     strerror(errno));
   return NO_RECOVERY;
   }
 
-while ((de = readdir(d)) != NULL)
+while ((de = readdir(d)))
   {
   uschar *name = US de->d_name;
   if (Ustrncmp(name, "qualify.", 8) == 0)
@@ -763,22 +767,23 @@ if (zonefile == NULL)
 
 (void)sprintf(CS buffer, "%s/dnszones/%s", argv[1], zonefile);
 
-/* Initialize the start of the response packet. We don't have to fake up
-everything, because we know that Exim will look only at the answer and
-additional section parts. */
+/* Initialize the start of the response packet. */
 
 memset(packet, 0, 12);
 pk += 12;
 
 /* Open the zone file. */
 
-f = fopen(CS buffer, "r");
-if (f == NULL)
+if (!(f = fopen(CS buffer, "r")))
   {
   fprintf(stderr, "fakens: failed to open %s: %s\n", buffer, strerror(errno));
   return NO_RECOVERY;
   }
 
+header->qr = 1;     /* query */
+header->opcode = QUERY; /* standard query */
+header->tc = 0;     /* no truncation */
+
 /* Find the records we want, and add them to the result. */
 
 count = 0;
@@ -789,12 +794,14 @@ header->ancount = htons(count);
 /* If the AA bit should be set (as indicated by the AA prefix in the zone file),
 we are expected to return some records in the authoritative section. Bind9: If
 there is data in the answer section, the authoritative section contains the NS
-records, otherwise it contains the SOA record.  Currently we mimic this
-behaviour for the first case (there is some answer record).
+records, otherwise it contains the SOA record.  Mimic that.
 */
 
-if (aa)
-  find_records(f, zone, zone[0] == '.' ? zone+1 : zone, US"NS", 2, &pk, &count, NULL, NULL);
+if (strcmp(qtype, "SOA") != 0 && strcmp(qtype, "NS") != 0)
+  if (count)
+    find_records(f, zone, zone[0] == '.' ? zone+1 : zone, US"NS", 2, &pk, &count, NULL, NULL);
+  else
+    find_records(f, zone, zone[0] == '.' ? zone+1 : zone, US"SOA", 3, &pk, &count, NULL, NULL);
 header->nscount = htons(count - ntohs(header->ancount));
 
 /* There is no need to return any additional records because Exim no longer