SECURITY: fix Qualys CVE-2020-PFPZA

[exim.git] / src / src / macro_predef.c

diff --git a/src/src/macro_predef.c b/src/src/macro_predef.c
index b594d5bfd23e4f4ce54ab5e9c337e7633b694b1c..1c93a6e038570066fb70b398b08f2927cc21948d 100644 (file)
--- a/src/src/macro_predef.c
+++ b/src/src/macro_predef.c
@@ -2,7 +2,8 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) Jeremy Harris 2017 */
+/* Copyright (c) Jeremy Harris 1995 - 2018 */
+/* Copyright (c) The Exim Maintainers 2020 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Create a static data structure with the predefined macros, to be
@@ -11,8 +12,7 @@ included in the main Exim build */
 #include "exim.h"
 #include "macro_predef.h"
 
-tree_node * tree_macros = NULL;
-unsigned m_number = 1;
+unsigned mp_index = 0;
 
 /* Global dummy variables */
 
@@ -24,7 +24,16 @@ uschar * syslog_facility_str;
 void
 builtin_macro_create_var(const uschar * name, const uschar * val)
 {
-macro_create(name, val, FALSE);
+printf ("static macro_item p%d = { ", mp_index);
+if (mp_index == 0)
+  printf(".next=NULL,");
+else
+  printf(".next=&p%d,", mp_index-1);
+
+printf(" .command_line=FALSE, .namelen=%d, .replen=%d,"
+       " .name=US\"%s\", .replacement=US\"%s\" };\n",
+       Ustrlen(name), Ustrlen(val), CS name, CS val);
+mp_index++;
 }
 
 
@@ -62,9 +71,8 @@ void
 options_from_list(optionlist * opts, unsigned nopt,
   const uschar * section, uschar * group)
 {
-int i;
 const uschar * s;
-uschar buf[64];
+uschar buf[EXIM_DRIVERNAME_MAX];
 
 /* The 'previously-defined-substring' rule for macros in config file
 lines is done thus for these builtin macros: we know that the table
@@ -73,7 +81,7 @@ of the macros list is in reverse-alpha (we prepend them) - so longer
 macros that have substrings are always discovered first during
 expansion. */
 
-for (i = 0; i < nopt; i++)  if (*(s = US opts[i].name) && *s != '*')
+for (int i = 0; i < nopt; i++)  if (*(s = US opts[i].name) && *s != '*')
   {
   if (group)
     spf(buf, sizeof(buf), CUS"_OPT_%T_%T_%T", section, group, s);
@@ -119,7 +127,7 @@ due to conflicts with other common macros. */
 #ifdef USE_TCP_WRAPPERS
   builtin_macro_create(US"_HAVE_TCPWRAPPERS");
 #endif
-#ifdef SUPPORT_TLS
+#ifndef DISABLE_TLS
   builtin_macro_create(US"_HAVE_TLS");
 # ifdef USE_GNUTLS
   builtin_macro_create(US"_HAVE_GNUTLS");
@@ -139,6 +147,9 @@ due to conflicts with other common macros. */
 #ifndef DISABLE_DKIM
   builtin_macro_create(US"_HAVE_DKIM");
 #endif
+#ifdef SUPPORT_DMARC
+  builtin_macro_create(US"_HAVE_DMARC");
+#endif
 #ifndef DISABLE_DNSSEC
   builtin_macro_create(US"_HAVE_DNSSEC");
 #endif
@@ -151,6 +162,9 @@ due to conflicts with other common macros. */
 #ifndef DISABLE_OCSP
   builtin_macro_create(US"_HAVE_OCSP");
 #endif
+#ifndef DISABLE_PIPE_CONNECT
+  builtin_macro_create(US"_HAVE_PIPE_CONNECT");
+#endif
 #ifndef DISABLE_PRDR
   builtin_macro_create(US"_HAVE_PRDR");
 #endif
@@ -169,24 +183,30 @@ due to conflicts with other common macros. */
 #ifdef SUPPORT_SPF
   builtin_macro_create(US"_HAVE_SPF");
 #endif
-#ifdef EXPERIMENTAL_SRS
+#if defined(EXPERIMENTAL_SRS) || defined(EXPERIMENTAL_SRS_NATIVE)
   builtin_macro_create(US"_HAVE_SRS");
 #endif
+#if defined(EXPERIMENTAL_SRS_NATIVE)
+  builtin_macro_create(US"_HAVE_NATIVE_SRS");  /* beware clash with _HAVE_SRS */
+#endif
+#ifdef EXPERIMENTAL_ARC
+  builtin_macro_create(US"_HAVE_ARC");
+#endif
 #ifdef EXPERIMENTAL_BRIGHTMAIL
   builtin_macro_create(US"_HAVE_BRIGHTMAIL");
 #endif
-#ifdef EXPERIMENTAL_DANE
+#ifdef SUPPORT_DANE
   builtin_macro_create(US"_HAVE_DANE");
 #endif
 #ifdef EXPERIMENTAL_DCC
   builtin_macro_create(US"_HAVE_DCC");
 #endif
-#ifdef EXPERIMENTAL_DMARC
-  builtin_macro_create(US"_HAVE_DMARC");
-#endif
 #ifdef EXPERIMENTAL_DSN_INFO
   builtin_macro_create(US"_HAVE_DSN_INFO");
 #endif
+#ifdef EXPERIMENTAL_TLS_RESUME
+  builtin_macro_create(US"_HAVE_TLS_RESUME");
+#endif
 
 #ifdef LOOKUP_LSEARCH
   builtin_macro_create(US"_HAVE_LOOKUP_LSEARCH");
@@ -206,6 +226,9 @@ due to conflicts with other common macros. */
 #ifdef LOOKUP_IBASE
   builtin_macro_create(US"_HAVE_LOOKUP_IBASE");
 #endif
+#ifdef LOOKUP_LDAP
+  builtin_macro_create(US"_HAVE_LOOKUP_JSON");
+#endif
 #ifdef LOOKUP_LDAP
   builtin_macro_create(US"_HAVE_LOOKUP_LDAP");
 #endif
@@ -258,6 +281,8 @@ due to conflicts with other common macros. */
 #ifdef WITH_CONTENT_SCAN
 features_malware();
 #endif
+
+features_crypto();
 }
 
 
@@ -268,6 +293,10 @@ options_main();
 options_routers();
 options_transports();
 options_auths();
+options_logging();
+#ifndef DISABLE_TLS
+options_tls();
+#endif
 }
 
 static void
@@ -279,59 +308,15 @@ params_dkim();
 }
 
 
-static unsigned
-macro_dump(macro_item * m)
-{
-int left = 0, right = 0;
-tree_node * t;
-macro_item_64 * m64;
-
-/* fprintf(stderr, "%s %p\n", __FUNCTION__, m); */
-
-if (!m) return 0;
-/* fprintf(stderr, "%s '%s' l %p r %p\n", __FUNCTION__, m->tnode.name, m->tnode.left, m->tnode.left); */
-if ((t = m->tnode.left)) left = macro_dump(tnode_to_mitem(m->tnode.left));
-if ((t = m->tnode.right)) right = macro_dump(tnode_to_mitem(m->tnode.right));
-
-printf ("static macro_item_64 p%u = { ", m->m_number);
-printf(" .command_line=FALSE,"
-       " .namelen=%d,"
-       " .replen=%d,"
-       " .m_number=%u,"
-       " .tnode={",
-       Ustrlen(m->tnode.name), Ustrlen(m->tnode.data.ptr), m->m_number);
-printf(left  ? " .left=&p%d.tnode,"  : " .left=NULL,",  left);
-printf(right ? " .right=&p%d.tnode," : " .right=NULL,", right);
-printf(
-       " .data.ptr=\"%s\","
-       " .balance=%d,"
-       " .name=\"%s\"}};\n",
-       CS m->tnode.data.ptr,
-       m->tnode.balance,
-       CS m->tnode.name);
-
-if (Ustrlen(m->tnode.name) +1 > sizeof(m64->tnode.name))
-  {
-  printf("#error macro name too long for macro_item_64\n");
-  exit(1);
-  }
-return m->m_number;
-}
-
-
-
 int
 main(void)
 {
-unsigned idx;
-
 printf("#include \"exim.h\"\n");
 features();
 options();
 params();
 
-idx = macro_dump(tnode_to_mitem(tree_macros));
-printf("tree_node * tree_macros = (tree_node *) &p%u.tnode;\n", idx);
-printf("unsigned m_number = %u;\n", m_number);
+printf("macro_item * macros = &p%d;\n", mp_index-1);
+printf("macro_item * mlast = &p0;\n");
 exit(0);
 }