1 files changed, 345 insertions, 0 deletions
diff --git a/src/macro_predef.c b/src/macro_predef.c
new file mode 100644
index 0000000..a0c659c
--- /dev/null
+++ b/src/macro_predef.c
@@ -0,0 +1,345 @@
+/*************************************************
+*     Exim - an Internet mail transport agent    *
+*************************************************/
+
+/* Copyright (c) The Exim Maintainers 2020 - 2022 */
+/* Copyright (c) Jeremy Harris 1995 - 2018 */
+/* See the file NOTICE for conditions of use and distribution. */
+
+/* Create a static data structure with the predefined macros, to be
+included in the main Exim build */
+
+#include "exim.h"
+#include "macro_predef.h"
+
+unsigned mp_index = 0;
+
+/* Global dummy variables */
+
+void fn_smtp_receive_timeout(const uschar * name, const uschar * str) {}
+uschar * syslog_facility_str;
+
+/******************************************************************************/
+
+void
+builtin_macro_create_var(const uschar * name, const uschar * val)
+{
+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++;
+}
+
+
+void
+builtin_macro_create(const uschar * name)
+{
+builtin_macro_create_var(name, US"y");
+}
+
+
+/* restricted snprintf */
+void
+spf(uschar * buf, int len, const uschar * fmt, ...)
+{
+va_list ap;
+va_start(ap, fmt);
+
+while (*fmt && len > 1)
+  if (*fmt == '%' && fmt[1] == 'T')
+    {
+    uschar * s = va_arg(ap, uschar *);
+    while (*s && len-- > 1)
+      *buf++ = toupper(*s++);
+    fmt += 2;
+    }
+  else
+    {
+    *buf++ = *fmt++; len--;
+    }
+*buf = '\0';
+va_end(ap);
+}
+
+void
+options_from_list(optionlist * opts, unsigned nopt,
+  const uschar * section, uschar * group)
+{
+const uschar * s;
+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
+we source from is in strict alpha order, hence the builtins portion
+of the macros list is in reverse-alpha (we prepend them) - so longer
+macros that have substrings are always discovered first during
+expansion. */
+
+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);
+  else
+    spf(buf, sizeof(buf), CUS"_OPT_%T_%T", section, s);
+  builtin_macro_create(buf);
+  }
+}
+
+
+/******************************************************************************/
+
+
+/* Create compile-time feature macros */
+static void
+features(void)
+{
+/* Probably we could work out a static initialiser for wherever
+macros are stored, but this will do for now. Some names are awkward
+due to conflicts with other common macros. */
+
+#ifdef SUPPORT_CRYPTEQ
+  builtin_macro_create(US"_HAVE_CRYPTEQ");
+#endif
+#if HAVE_ICONV
+  builtin_macro_create(US"_HAVE_ICONV");
+#endif
+#if HAVE_IPV6
+  builtin_macro_create(US"_HAVE_IPV6");
+#endif
+#ifdef HAVE_SETCLASSRESOURCES
+  builtin_macro_create(US"_HAVE_SETCLASSRESOURCES");
+#endif
+#ifdef SUPPORT_PAM
+  builtin_macro_create(US"_HAVE_PAM");
+#endif
+#ifdef EXIM_PERL
+  builtin_macro_create(US"_HAVE_PERL");
+#endif
+#ifdef EXPAND_DLFUNC
+  builtin_macro_create(US"_HAVE_DLFUNC");
+#endif
+#ifdef USE_TCP_WRAPPERS
+  builtin_macro_create(US"_HAVE_TCPWRAPPERS");
+#endif
+#ifndef DISABLE_TLS
+  builtin_macro_create(US"_HAVE_TLS");
+# ifdef USE_GNUTLS
+  builtin_macro_create(US"_HAVE_GNUTLS");
+# else
+  builtin_macro_create(US"_HAVE_OPENSSL");
+# endif
+#endif
+#ifdef SUPPORT_TRANSLATE_IP_ADDRESS
+  builtin_macro_create(US"_HAVE_TRANSLATE_IP_ADDRESS");
+#endif
+#ifdef SUPPORT_MOVE_FROZEN_MESSAGES
+  builtin_macro_create(US"_HAVE_MOVE_FROZEN_MESSAGES");
+#endif
+#ifdef WITH_CONTENT_SCAN
+  builtin_macro_create(US"_HAVE_CONTENT_SCANNING");
+#endif
+#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
+#ifndef DISABLE_EVENT
+  builtin_macro_create(US"_HAVE_EVENT");
+#endif
+#ifdef SUPPORT_I18N
+  builtin_macro_create(US"_HAVE_I18N");
+#endif
+#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
+#ifdef SUPPORT_PROXY
+  builtin_macro_create(US"_HAVE_PROXY");
+#endif
+#ifdef SUPPORT_SOCKS
+  builtin_macro_create(US"_HAVE_SOCKS");
+#endif
+#if defined(SUPPORT_SRS)
+  builtin_macro_create(US"_HAVE_NATIVE_SRS");	/* beware clash with _HAVE_SRS */
+#endif
+#ifdef TCP_FASTOPEN
+  builtin_macro_create(US"_HAVE_TCP_FASTOPEN");
+#endif
+#ifdef SUPPORT_SPF
+  builtin_macro_create(US"_HAVE_SPF");
+#endif
+#ifdef SUPPORT_SRS
+  builtin_macro_create(US"_HAVE_SRS");
+#endif
+#ifdef EXPERIMENTAL_ARC
+  builtin_macro_create(US"_HAVE_ARC");
+#endif
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+  builtin_macro_create(US"_HAVE_BRIGHTMAIL");
+#endif
+#ifdef SUPPORT_DANE
+  builtin_macro_create(US"_HAVE_DANE");
+#endif
+#ifdef EXPERIMENTAL_DCC
+  builtin_macro_create(US"_HAVE_DCC");
+#endif
+#ifdef EXPERIMENTAL_DSN_INFO
+  builtin_macro_create(US"_HAVE_DSN_INFO");
+#endif
+#ifndef DISABLE_TLS_RESUME
+  builtin_macro_create(US"_HAVE_TLS_RESUME");
+#endif
+
+#ifdef LOOKUP_LSEARCH
+  builtin_macro_create(US"_HAVE_LOOKUP_LSEARCH");
+#endif
+#ifdef LOOKUP_CDB
+  builtin_macro_create(US"_HAVE_LOOKUP_CDB");
+#endif
+#ifdef LOOKUP_DBM
+  builtin_macro_create(US"_HAVE_LOOKUP_DBM");
+#endif
+#ifdef LOOKUP_DNSDB
+  builtin_macro_create(US"_HAVE_LOOKUP_DNSDB");
+#endif
+#ifdef LOOKUP_DSEARCH
+  builtin_macro_create(US"_HAVE_LOOKUP_DSEARCH");
+#endif
+#ifdef LOOKUP_IBASE
+  builtin_macro_create(US"_HAVE_LOOKUP_IBASE");
+#endif
+#ifdef LOOKUP_LMDB
+  builtin_macro_create(US"_HAVE_LMDB");
+  builtin_macro_create(US"_HAVE_LOOKUP_LMDB");
+#endif
+#ifdef LOOKUP_LDAP
+  builtin_macro_create(US"_HAVE_LOOKUP_JSON");
+#endif
+#ifdef LOOKUP_LDAP
+  builtin_macro_create(US"_HAVE_LOOKUP_LDAP");
+#endif
+#ifdef LOOKUP_MYSQL
+  builtin_macro_create(US"_HAVE_LOOKUP_MYSQL");
+#endif
+#ifdef LOOKUP_NIS
+  builtin_macro_create(US"_HAVE_LOOKUP_NIS");
+#endif
+#ifdef LOOKUP_NISPLUS
+  builtin_macro_create(US"_HAVE_LOOKUP_NISPLUS");
+#endif
+#ifdef LOOKUP_ORACLE
+  builtin_macro_create(US"_HAVE_LOOKUP_ORACLE");
+#endif
+#ifdef LOOKUP_PASSWD
+  builtin_macro_create(US"_HAVE_LOOKUP_PASSWD");
+#endif
+#ifdef LOOKUP_PGSQL
+  builtin_macro_create(US"_HAVE_LOOKUP_PGSQL");
+#endif
+#ifdef LOOKUP_REDIS
+  builtin_macro_create(US"_HAVE_LOOKUP_REDIS");
+#endif
+#ifdef LOOKUP_SQLITE
+  builtin_macro_create(US"_HAVE_LOOKUP_SQLITE");
+#endif
+#ifdef LOOKUP_TESTDB
+  builtin_macro_create(US"_HAVE_LOOKUP_TESTDB");
+#endif
+#ifdef LOOKUP_WHOSON
+  builtin_macro_create(US"_HAVE_LOOKUP_WHOSON");
+#endif
+
+#ifdef TRANSPORT_APPENDFILE
+# ifdef SUPPORT_MAILDIR
+  builtin_macro_create(US"_HAVE_TRANSPORT_APPEND_MAILDIR");
+# endif
+# ifdef SUPPORT_MAILSTORE
+  builtin_macro_create(US"_HAVE_TRANSPORT_APPEND_MAILSTORE");
+# endif
+# ifdef SUPPORT_MBX
+  builtin_macro_create(US"_HAVE_TRANSPORT_APPEND_MBX");
+# endif
+#endif
+
+features_acl();
+features_crypto();
+
+#ifdef WITH_CONTENT_SCAN
+features_malware();
+#endif
+}
+
+static void
+exp_features(void)
+{
+#ifdef EXPERIMENTAL_ARC
+  builtin_macro_create(US"_EXP_ARC");
+#endif
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+  builtin_macro_create(US"_EXP_BMI");
+#endif
+#ifdef EXPERIMENTAL_DCC
+  builtin_macro_create(US"_EXP_DCC");
+#endif
+#ifdef EXPERIMENTAL_DSN_INFO
+  builtin_macro_create(US"_EXP_DSNI");
+#endif
+#ifdef EXPERIMENTAL_ESMTP_LIMITS
+  builtin_macro_create(US"_EXP_LIMITS");
+#endif
+#ifdef EXPERIMENTAL_QUEUEFILE
+  builtin_macro_create(US"_EXP_QUEUEFILE");
+#endif
+}
+
+
+static void
+options(void)
+{
+options_main();
+options_routers();
+options_transports();
+options_auths();
+options_logging();
+#ifndef DISABLE_TLS
+options_tls();
+#endif
+}
+
+static void
+params(void)
+{
+#ifndef DISABLE_DKIM
+params_dkim();
+#endif
+}
+
+
+int
+main(void)
+{
+printf("#include \"exim.h\"\n");
+features();
+exp_features();
+options();
+params();
+
+printf("macro_item * macros = &p%d;\n", mp_index-1);
+printf("macro_item * mlast = &p0;\n");
+exit(0);
+}