Fix build with recent LibreSSL, when including DANE. Bug 2386

[exim.git] / src / src / tlscert-openssl.c

diff --git a/src/src/tlscert-openssl.c b/src/src/tlscert-openssl.c
index bfd4dc112a93f31c705fc32ae2776bcf2d4451cb..f9808b3542435f68d50326aba26f9792022b51a9 100644 (file)
--- a/src/src/tlscert-openssl.c
+++ b/src/src/tlscert-openssl.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) Jeremy Harris 2014 - 2016 */
+/* Copyright (c) Jeremy Harris 2014 - 2019 */
 
 /* This module provides TLS (aka SSL) support for Exim using the OpenSSL
 library. It is #included into the tls.c file when that library is used.
@@ -17,10 +17,19 @@ library. It is #included into the tls.c file when that library is used.
 #include <openssl/rand.h>
 #include <openssl/x509v3.h>
 
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
-# define EXIM_HAVE_ASN1_MACROS
+#ifdef LIBRESSL_VERSION_NUMBER /* LibreSSL */
+# if LIBRESSL_VERSION_NUMBER >= 0x2090000fL
+#  define EXIM_HAVE_ASN1_MACROS
+# endif
+#else                          /* OpenSSL */
+# if OPENSSL_VERSION_NUMBER >= 0x10100000L
+#  define EXIM_HAVE_ASN1_MACROS
+# endif
 #endif
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+# define ASN1_STRING_get0_data ASN1_STRING_data
+#endif
 
 /*****************************************************
 *  Export/import a certificate, binary/printable
@@ -149,11 +158,11 @@ else
     time_t t = mktime(&tm);    /* make the tm self-consistent */
 
     if (mod && Ustrcmp(mod, "int") == 0)       /* seconds since epoch */
-      s = string_sprintf("%u", t);
+      s = string_sprintf(TIME_T_FMT, t);
 
     else
       {
-      if (!timestamps_utc)     /* decoded string in local TZ */
+      if (!f.timestamps_utc)   /* decoded string in local TZ */
        {                               /* shift to local TZ */
        restore_tz(tz);
        mod_tz = FALSE;
@@ -300,7 +309,7 @@ return mod ? tls_field_from_dn(cp, mod) : cp;
 uschar *
 tls_cert_version(void * cert, uschar * mod)
 {
-return string_sprintf("%d", X509_get_version((X509 *)cert));
+return string_sprintf("%ld", X509_get_version((X509 *)cert));
 }
 
 uschar *
@@ -373,17 +382,17 @@ while (sk_GENERAL_NAME_num(san) > 0)
     {
     case GEN_DNS:
       tag = US"DNS";
-      ele = ASN1_STRING_data(namePart->d.dNSName);
+      ele = US ASN1_STRING_get0_data(namePart->d.dNSName);
       len = ASN1_STRING_length(namePart->d.dNSName);
       break;
     case GEN_URI:
       tag = US"URI";
-      ele = ASN1_STRING_data(namePart->d.uniformResourceIdentifier);
+      ele = US ASN1_STRING_get0_data(namePart->d.uniformResourceIdentifier);
       len = ASN1_STRING_length(namePart->d.uniformResourceIdentifier);
       break;
     case GEN_EMAIL:
       tag = US"MAIL";
-      ele = ASN1_STRING_data(namePart->d.rfc822Name);
+      ele = US ASN1_STRING_get0_data(namePart->d.rfc822Name);
       len = ASN1_STRING_length(namePart->d.rfc822Name);
       break;
     default:
@@ -407,20 +416,19 @@ tls_cert_ocsp_uri(void * cert, uschar * mod)
 STACK_OF(ACCESS_DESCRIPTION) * ads = (STACK_OF(ACCESS_DESCRIPTION) *)
   X509_get_ext_d2i((X509 *)cert, NID_info_access, NULL, NULL);
 int adsnum = sk_ACCESS_DESCRIPTION_num(ads);
-int i;
 uschar sep = '\n';
 gstring * list = NULL;
 
 if (mod)
   if (*mod == '>' && *++mod) sep = *mod++;
 
-for (i = 0; i < adsnum; i++)
+for (int i = 0; i < adsnum; i++)
   {
   ACCESS_DESCRIPTION * ad = sk_ACCESS_DESCRIPTION_value(ads, i);
 
   if (ad && OBJ_obj2nid(ad->method) == NID_ad_OCSP)
     list = string_append_listele_n(list, sep,
-      ASN1_STRING_data(ad->location->d.ia5),
+      US ASN1_STRING_get0_data(ad->location->d.ia5),
       ASN1_STRING_length(ad->location->d.ia5));
   }
 sk_ACCESS_DESCRIPTION_free(ads);
@@ -434,28 +442,24 @@ STACK_OF(DIST_POINT) * dps = (STACK_OF(DIST_POINT) *)
   X509_get_ext_d2i((X509 *)cert,  NID_crl_distribution_points,
     NULL, NULL);
 DIST_POINT * dp;
-int dpsnum = sk_DIST_POINT_num(dps);
-int i;
 uschar sep = '\n';
 gstring * list = NULL;
 
 if (mod)
   if (*mod == '>' && *++mod) sep = *mod++;
 
-if (dps) for (i = 0; i < dpsnum; i++)
+if (dps) for (int i = 0, dpsnum = sk_DIST_POINT_num(dps); i < dpsnum; i++)
   if ((dp = sk_DIST_POINT_value(dps, i)))
     {
     STACK_OF(GENERAL_NAME) * names = dp->distpoint->name.fullname;
     GENERAL_NAME * np;
-    int nnum = sk_GENERAL_NAME_num(names);
-    int j;
 
-    for (j = 0; j < nnum; j++)
+    for (int j = 0, nnum = sk_GENERAL_NAME_num(names); j < nnum; j++)
       if (  (np = sk_GENERAL_NAME_value(names, j))
         && np->type == GEN_URI
         )
        list = string_append_listele_n(list, sep,
-         ASN1_STRING_data(np->d.uniformResourceIdentifier),
+         US ASN1_STRING_get0_data(np->d.uniformResourceIdentifier),
          ASN1_STRING_length(np->d.uniformResourceIdentifier));
     }
 sk_DIST_POINT_free(dps);
@@ -479,7 +483,7 @@ if (!i2d_X509_bio(bp, (X509 *)cert))
 else
   {
   long len = BIO_get_mem_data(bp, &cp);
-  cp = b64encode(cp, (int)len);
+  cp = b64encode(CUS cp, (int)len);
   }
 
 BIO_free(bp);
@@ -490,7 +494,6 @@ return cp;
 static uschar *
 fingerprint(X509 * cert, const EVP_MD * fdig)
 {
-int j;
 unsigned int n;
 uschar md[EVP_MAX_MD_SIZE];
 uschar * cp;
@@ -501,7 +504,7 @@ if (!X509_digest(cert,fdig,md,&n))
   return NULL;
   }
 cp = store_get(n*2+1);
-for (j = 0; j < (int)n; j++) sprintf(CS cp+2*j, "%02X", md[j]);
+for (int j = 0; j < (int)n; j++) sprintf(CS cp+2*j, "%02X", md[j]);
 return(cp);
 }