Fix positive testcase for -oMm

[users/jgh/exim.git] / test / src / fakens.c

diff --git a/test/src/fakens.c b/test/src/fakens.c
index 9ab7b7e2d551fa7ceb409c1fda0c453e82b88443..baabf1d30308d4d004fcf6da9458f1603aa25c8a 100644 (file)
--- a/test/src/fakens.c
+++ b/test/src/fakens.c
@@ -1,5 +1,3 @@
-/* $Cambridge: exim/test/src/fakens.c,v 1.1 2006/02/06 16:24:05 ph10 Exp $ */
-

 /*************************************************
 *       fakens - A Fake Nameserver Program       *
 *************************************************/
 /*************************************************
 *       fakens - A Fake Nameserver Program       *
 *************************************************/


@@ -50,11 +48,16 @@ line in the zone file contains exactly this:
   PASS ON NOT FOUND
 
 and the domain is not found. It converts the the result to PASS_ON instead of
   PASS ON NOT FOUND
 
 and the domain is not found. It converts the the result to PASS_ON instead of

-HOST_NOT_FOUND. */
+HOST_NOT_FOUND.
+
+Any DNS record line in a zone file can be prefixed with "DNSSEC" and
+at least one space; if all the records found by a lookup are marked
+as such then the response will have the "AD" bit set. */

 
 #include <ctype.h>
 #include <stdarg.h>
 #include <stdio.h>
 
 #include <ctype.h>
 #include <stdarg.h>
 #include <stdio.h>

+#include <stdlib.h>

 #include <string.h>
 #include <netdb.h>
 #include <errno.h>
 #include <string.h>
 #include <netdb.h>
 #include <errno.h>


@@ -81,12 +84,6 @@ typedef unsigned char uschar;
 #define Ustrncmp(s,t,n)    strncmp(CCS(s),CCS(t),n)
 #define Ustrncpy(s,t,n)    strncpy(CS(s),CCS(t),n)
 
 #define Ustrncmp(s,t,n)    strncmp(CCS(s),CCS(t),n)
 #define Ustrncpy(s,t,n)    strncpy(CS(s),CCS(t),n)
 

-
-typedef struct adomainstr {
-  struct adomainstr *next;
-  uschar name[1];
-} adomainstr;
-

 typedef struct zoneitem {
   uschar *zone;
   uschar *zonefile;
 typedef struct zoneitem {
   uschar *zone;
   uschar *zonefile;


@@ -103,21 +100,25 @@ not defined, assume we are in this state. A really old system might not even
 know about AAAA and SRV at all. */
 
 #ifndef ns_t_a
 know about AAAA and SRV at all. */
 
 #ifndef ns_t_a

-#define ns_t_a      T_A
-#define ns_t_ns     T_NS
-#define ns_t_cname  T_CNAME
-#define ns_t_soa    T_SOA
-#define ns_t_ptr    T_PTR
-#define ns_t_mx     T_MX
-#define ns_t_txt    T_TXT
-#define ns_t_aaaa   T_AAAA
-#define ns_t_srv    T_SRV
-#ifndef T_AAAA
-#define T_AAAA      28
-#endif
-#ifndef T_SRV
-#define T_SRV       33
-#endif
+# define ns_t_a      T_A
+# define ns_t_ns     T_NS
+# define ns_t_cname  T_CNAME
+# define ns_t_soa    T_SOA
+# define ns_t_ptr    T_PTR
+# define ns_t_mx     T_MX
+# define ns_t_txt    T_TXT
+# define ns_t_aaaa   T_AAAA
+# define ns_t_srv    T_SRV
+# define ns_t_tlsa   T_TLSA
+# ifndef T_AAAA
+#  define T_AAAA      28
+# endif
+# ifndef T_SRV
+#  define T_SRV       33
+# endif
+# ifndef T_TLSA
+#  define T_TLSA      52
+# endif

 #endif
 
 static tlist type_list[] = {
 #endif
 
 static tlist type_list[] = {


@@ -130,6 +131,7 @@ static tlist type_list[] = {
   { US"TXT",     ns_t_txt },
   { US"AAAA",    ns_t_aaaa },
   { US"SRV",     ns_t_srv },
   { US"TXT",     ns_t_txt },
   { US"AAAA",    ns_t_aaaa },
   { US"SRV",     ns_t_srv },

+  { US"TLSA",    ns_t_tlsa },

   { NULL,        0 }
 };
 
   { NULL,        0 }
 };
 


@@ -155,7 +157,7 @@ uschar *yield;
 char buffer[256];
 va_list ap;
 va_start(ap, format);
 char buffer[256];
 va_list ap;
 va_start(ap, format);

-vsprintf(buffer, format, ap);
+vsprintf(buffer, CS format, ap);

 va_end(ap);
 yield = (uschar *)malloc(Ustrlen(buffer) + 1);
 Ustrcpy(yield, buffer);
 va_end(ap);
 yield = (uschar *)malloc(Ustrlen(buffer) + 1);
 Ustrcpy(yield, buffer);


@@ -193,6 +195,33 @@ while (*name != 0)
 return pk;
 }
 
 return pk;
 }
 

+uschar *
+bytefield(uschar ** pp, uschar * pk)
+{
+unsigned value = 0;
+uschar * p = *pp;
+
+while (isdigit(*p)) value = value*10 + *p++ - '0';
+while (isspace(*p)) p++;
+*pp = p;
+*pk++ = value & 255;
+return pk;
+}
+
+uschar *
+shortfield(uschar ** pp, uschar * pk)
+{
+unsigned value = 0;
+uschar * p = *pp;
+
+while (isdigit(*p)) value = value*10 + *p++ - '0';
+while (isspace(*p)) p++;
+*pp = p;
+*pk++ = (value >> 8) & 255;
+*pk++ = value & 255;
+return pk;
+}
+

 
 
 /*************************************************
 
 
 /*************************************************


@@ -210,7 +239,6 @@ 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
   qtypelen    the length of qtype
   pkptr       points to the output buffer pointer; this is updated
   countptr    points to the record count; this is updated

-  adomainptr  points to where to hang additional domains

 
 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
 
 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


@@ -218,16 +246,16 @@ 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,
 
 static int
 find_records(FILE *f, uschar *zone, uschar *domain, uschar *qtype,

-  int qtypelen, uschar **pkptr, int *countptr, adomainstr **adomainptr)
+  int qtypelen, uschar **pkptr, int *countptr, BOOL * dnssec)

 {
 int yield = HOST_NOT_FOUND;
 {
 int yield = HOST_NOT_FOUND;

-int zonelen = Ustrlen(zone);

 int domainlen = Ustrlen(domain);
 BOOL pass_on_not_found = FALSE;
 tlist *typeptr;
 uschar *pk = *pkptr;
 uschar buffer[256];
 uschar rrdomain[256];
 int domainlen = Ustrlen(domain);
 BOOL pass_on_not_found = FALSE;
 tlist *typeptr;
 uschar *pk = *pkptr;
 uschar buffer[256];
 uschar rrdomain[256];

+uschar RRdomain[256];

 
 /* Decode the required type */
 
 
 /* Decode the required type */
 


@@ -242,6 +270,8 @@ if (typeptr->name == NULL)
 rrdomain[0] = 0;                 /* No previous domain */
 (void)fseek(f, 0, SEEK_SET);     /* Start again at the beginning */
 
 rrdomain[0] = 0;                 /* No previous domain */
 (void)fseek(f, 0, SEEK_SET);     /* Start again at the beginning */
 

+*dnssec = TRUE;                        /* cancelled by first nonsecure rec found */ 
+

 /* Scan for RRs */
 
 while (fgets(CS buffer, sizeof(buffer), f) != NULL)
 /* Scan for RRs */
 
 while (fgets(CS buffer, sizeof(buffer), f) != NULL)


@@ -252,12 +282,13 @@ while (fgets(CS buffer, sizeof(buffer), f) != NULL)
   int i, plen, value;
   int tvalue = typeptr->value;
   int qtlen = qtypelen;
   int i, plen, value;
   int tvalue = typeptr->value;
   int qtlen = qtypelen;

+  BOOL rr_sec = FALSE;

 
   p = buffer;
   while (isspace(*p)) p++;
   if (*p == 0 || *p == ';') continue;
 
 
   p = buffer;
   while (isspace(*p)) p++;
   if (*p == 0 || *p == ';') continue;
 

-  if (Ustrncmp(p, "PASS ON NOT FOUND", 17) == 0)
+  if (Ustrncmp(p, US"PASS ON NOT FOUND", 17) == 0)

     {
     pass_on_not_found = TRUE;
     continue;
     {
     pass_on_not_found = TRUE;
     continue;


@@ -268,11 +299,31 @@ while (fgets(CS buffer, sizeof(buffer), f) != NULL)
   *ep = 0;
 
   p = buffer;
   *ep = 0;
 
   p = buffer;

+  if (Ustrncmp(p, US"DNSSEC ", 7) == 0)        /* tagged as secure */
+    {
+    rr_sec = TRUE;
+    p += 7;
+    }
+

   if (!isspace(*p))
     {
     uschar *pp = rrdomain;
   if (!isspace(*p))
     {
     uschar *pp = rrdomain;

-    while (!isspace(*p)) *pp++ = tolower(*p++);
-    if (pp[-1] != '.') Ustrcpy(pp, zone); else pp[-1] = 0;
+    uschar *PP = RRdomain;
+    while (!isspace(*p))
+      {
+      *pp++ = tolower(*p);
+      *PP++ = *p++;
+      }
+    if (pp[-1] != '.')
+      {
+      Ustrcpy(pp, zone);
+      Ustrcpy(PP, zone);
+      }
+    else
+      {
+      pp[-1] = 0;
+      PP[-1] = 0;
+      }

     }
 
   /* Compare domain names; first check for a wildcard */
     }
 
   /* Compare domain names; first check for a wildcard */


@@ -306,13 +357,19 @@ while (fgets(CS buffer, sizeof(buffer), f) != NULL)
 
   /* Found a relevant record */
 
 
   /* Found a relevant record */
 

+  if (!rr_sec)
+    *dnssec = FALSE;                   /* cancel AD return */
+

   yield = 0;
   *countptr = *countptr + 1;
 
   p += qtlen;
   while (isspace(*p)) p++;
 
   yield = 0;
   *countptr = *countptr + 1;
 
   p += qtlen;
   while (isspace(*p)) p++;
 

-  pk = packname(domain, pk);            /* Not rrdomain because of wildcard */
+  /* For a wildcard record, use the search name; otherwise use the record's
+  name in its original case because it might contain upper case letters. */
+
+  pk = packname((rrdomain[0] == '*')? domain : RRdomain, pk);

   *pk++ = (tvalue >> 8) & 255;
   *pk++ = (tvalue) & 255;
   *pk++ = 0;
   *pk++ = (tvalue >> 8) & 255;
   *pk++ = (tvalue) & 255;
   *pk++ = 0;


@@ -363,12 +420,11 @@ while (fgets(CS buffer, sizeof(buffer), f) != NULL)
     break;
 
     case ns_t_mx:
     break;
 
     case ns_t_mx:

-    value = 0;
-    while (isdigit(*p)) value = value*10 + *p++ - '0';
-    while (isspace(*p)) p++;
-    *pk++ = (value >> 8) & 255;
-    *pk++ = value & 255;
-    goto PACKNAME;
+    pk = shortfield(&p, pk);
+    if (ep[-1] != '.') sprintf(CS ep, "%s.", zone);
+    pk = packname(p, pk);
+    plen = Ustrlen(p);
+    break;

 
     case ns_t_txt:
     pp = pk++;
 
     case ns_t_txt:
     pp = pk++;


@@ -377,6 +433,23 @@ while (fgets(CS buffer, sizeof(buffer), f) != NULL)
     *pp = pk - pp - 1;
     break;
 
     *pp = pk - pp - 1;
     break;
 

+    case ns_t_tlsa:
+    pk = bytefield(&p, pk);    /* usage */
+    pk = bytefield(&p, pk);    /* selector */
+    pk = bytefield(&p, pk);    /* match type */
+    while (isxdigit(*p))
+      {
+      value = toupper(*p) - (isdigit(*p) ? '0' : '7') << 4;
+      if (isxdigit(*++p))
+       {
+       value |= toupper(*p) - (isdigit(*p) ? '0' : '7');
+       p++;
+       }
+      *pk++ = value & 255;
+      }
+
+    break;
+

     case ns_t_srv:
     for (i = 0; i < 3; i++)
       {
     case ns_t_srv:
     for (i = 0; i < 3; i++)
       {


@@ -392,20 +465,9 @@ while (fgets(CS buffer, sizeof(buffer), f) != NULL)
     case ns_t_cname:
     case ns_t_ns:
     case ns_t_ptr:
     case ns_t_cname:
     case ns_t_ns:
     case ns_t_ptr:

-    PACKNAME:
-    if (ep[-1] != '.') sprintf(ep, "%s.", zone);
+    if (ep[-1] != '.') sprintf(CS ep, "%s.", zone);

     pk = packname(p, pk);
     plen = Ustrlen(p);
     pk = packname(p, pk);
     plen = Ustrlen(p);

-    if (adomainptr != NULL && plen > zonelen + 2 &&
-        Ustrncmp(p + plen - zonelen - 1, zone, zonelen) == 0)
-      {
-      adomainstr *adomain = (adomainstr *)malloc(sizeof(adomainstr) + plen);
-      *adomainptr = adomain;
-      adomainptr = &(adomain->next);
-      adomain->next = NULL;
-      Ustrncpy(adomain->name, p, plen - 1);
-      adomain->name[plen-1] = 0;
-      }

     break;
     }
 
     break;
     }
 


@@ -413,18 +475,6 @@ while (fgets(CS buffer, sizeof(buffer), f) != NULL)
 
   rdlptr[0] = ((pk - rdlptr - 2) >> 8) & 255;
   rdlptr[1] = (pk -rdlptr - 2) & 255;
 
   rdlptr[0] = ((pk - rdlptr - 2) >> 8) & 255;
   rdlptr[1] = (pk -rdlptr - 2) & 255;

-
-  /* If we have just yielded a CNAME, we must change the domain name to the
-  new domain, and re-start the scan from the beginning. */
-
-  if (found_cname)
-    {
-    domain = fcopystring("%s", p);
-    domainlen = Ustrlen(domain);
-    domain[domainlen - 1] = 0;       /* Removed trailing dot */
-    rrdomain[0] = 0;                 /* No previous domain */
-    (void)fseek(f, 0, SEEK_SET);     /* Start again at the beginning */
-    }

   }
 
 *pkptr = pk;
   }
 
 *pkptr = pk;


@@ -442,13 +492,11 @@ main(int argc, char **argv)
 {
 FILE *f;
 DIR *d;
 {
 FILE *f;
 DIR *d;

-int dirlen, domlen, qtypelen;
+int domlen, qtypelen;

 int yield, count;
 int i;
 int zonecount = 0;
 int yield, count;
 int i;
 int zonecount = 0;

-tlist *typeptr;

 struct dirent *de;
 struct dirent *de;

-adomainstr *adomain = NULL;

 zoneitem zones[32];
 uschar *qualify = NULL;
 uschar *p, *zone;
 zoneitem zones[32];
 uschar *qualify = NULL;
 uschar *p, *zone;


@@ -458,6 +506,7 @@ uschar buffer[256];
 uschar qtype[12];
 uschar packet[512];
 uschar *pk = packet;
 uschar qtype[12];
 uschar packet[512];
 uschar *pk = packet;

+BOOL dnssec;

 
 if (argc != 4)
   {
 
 if (argc != 4)
   {


@@ -467,7 +516,7 @@ if (argc != 4)
 
 /* Find the zones */
 
 
 /* Find the zones */
 

-(void)sprintf(buffer, "%s/../dnszones", argv[1]);
+(void)sprintf(CS buffer, "%s/../dnszones", argv[1]);

 
 d = opendir(CCS buffer);
 if (d == NULL)
 
 d = opendir(CCS buffer);
 if (d == NULL)


@@ -479,20 +528,20 @@ if (d == NULL)
 
 while ((de = readdir(d)) != NULL)
   {
 
 while ((de = readdir(d)) != NULL)
   {

-  uschar *name = de->d_name;
+  uschar *name = US de->d_name;

   if (Ustrncmp(name, "qualify.", 8) == 0)
     {
   if (Ustrncmp(name, "qualify.", 8) == 0)
     {

-    qualify = fcopystring("%s", name + 7);
+    qualify = fcopystring(US "%s", name + 7);

     continue;
     }
   if (Ustrncmp(name, "db.", 3) != 0) continue;
   if (Ustrncmp(name + 3, "ip4.", 4) == 0)
     continue;
     }
   if (Ustrncmp(name, "db.", 3) != 0) continue;
   if (Ustrncmp(name + 3, "ip4.", 4) == 0)

-    zones[zonecount].zone = fcopystring("%s.in-addr.arpa", name + 6);
+    zones[zonecount].zone = fcopystring(US "%s.in-addr.arpa", name + 6);

   else if (Ustrncmp(name + 3, "ip6.", 4) == 0)
   else if (Ustrncmp(name + 3, "ip6.", 4) == 0)

-    zones[zonecount].zone = fcopystring("%s.ip6.arpa", name + 6);
+    zones[zonecount].zone = fcopystring(US "%s.ip6.arpa", name + 6);

   else
   else

-    zones[zonecount].zone = fcopystring("%s", name + 2);
-  zones[zonecount++].zonefile = fcopystring("%s", name);
+    zones[zonecount].zone = fcopystring(US "%s", name + 2);
+  zones[zonecount++].zonefile = fcopystring(US "%s", name);

   }
 (void)closedir(d);
 
   }
 (void)closedir(d);
 


@@ -538,7 +587,7 @@ if (zonefile == NULL)
   return PASS_ON;
   }
 
   return PASS_ON;
   }
 

-(void)sprintf(buffer, "%s/../dnszones/%s", argv[1], zonefile);
+(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
 
 /* 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


@@ -549,7 +598,7 @@ pk += 12;
 
 /* Open the zone file. */
 
 
 /* Open the zone file. */
 

-f = fopen(buffer, "r");
+f = fopen(CS buffer, "r");

 if (f == NULL)
   {
   fprintf(stderr, "fakens: failed to open %s: %s\n", buffer, strerror(errno));
 if (f == NULL)
   {
   fprintf(stderr, "fakens: failed to open %s: %s\n", buffer, strerror(errno));


@@ -559,23 +608,20 @@ if (f == NULL)
 /* Find the records we want, and add them to the result. */
 
 count = 0;
 /* Find the records we want, and add them to the result. */
 
 count = 0;

-yield = find_records(f, zone, domain, qtype, qtypelen, &pk, &count, &adomain);
+yield = find_records(f, zone, domain, qtype, qtypelen, &pk, &count, &dnssec);

 if (yield == NO_RECOVERY) goto END_OFF;
 
 packet[6] = (count >> 8) & 255;
 packet[7] = count & 255;
 
 if (yield == NO_RECOVERY) goto END_OFF;
 
 packet[6] = (count >> 8) & 255;
 packet[7] = count & 255;
 

-/* Search for additional records and add them to the result. */
+/* There is no need to return any additional records because Exim no longer
+(from release 4.61) makes any use of them. */

 
 

-count = 0;
-for (; adomain != NULL; adomain = adomain->next)
-  {
-  (void)find_records(f, zone, adomain->name, US"AAAA", 4, &pk, &count, NULL);
-  (void)find_records(f, zone, adomain->name, US"A", 1, &pk, &count, NULL);
-  }
+packet[10] = 0;
+packet[11] = 0;

 
 

-packet[10] = (count >> 8) & 255;
-packet[11] = count & 255;
+if (dnssec)
+  ((HEADER *)packet)->ad = 1;

 
 /* Close the zone file, write the result, and return. */
 
 
 /* Close the zone file, write the result, and return. */
 


@@ -585,4 +631,6 @@ END_OFF:
 return yield;
 }
 
 return yield;
 }
 

+/* vi: aw ai sw=2
+*/

 /* End of fakens.c */
 /* End of fakens.c */