[GNUnet-SVN] [gnurl] 50/150: openssl: Don't add verify locations when verifypeer==0

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ng0 pushed a commit to branch master
in repository gnurl.

commit dc85437736e1fc90e689bb1f6c51c8f1aa9430eb
Author: Patrick Schlangen <address@hidden>
AuthorDate: Mon Feb 5 17:17:15 2018 +0100

    openssl: Don't add verify locations when verifypeer==0
    
    When peer verification is disabled, calling
    SSL_CTX_load_verify_locations is not necessary. Only call it when
    verification is enabled to save resources and increase performance.
    
    Closes #2290
---
 lib/vtls/openssl.c | 31 +++++++++++++++----------------
 1 file changed, 15 insertions(+), 16 deletions(-)

diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index 0d7baca8b..2a6b3cfac 100644
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -2338,10 +2338,11 @@ static CURLcode ossl_connect_step1(struct connectdata 
*conn, int sockindex)
 #endif
 
   if(ssl_cafile || ssl_capath) {
-    /* tell SSL where to find CA certificates that are used to verify
-       the servers certificate. */
-    if(!SSL_CTX_load_verify_locations(BACKEND->ctx, ssl_cafile, ssl_capath)) {
-      if(verifypeer) {
+    if(verifypeer) {
+      /* tell SSL where to find CA certificates that are used to verify
+         the servers certificate. */
+      if(!SSL_CTX_load_verify_locations(BACKEND->ctx,
+                                        ssl_cafile, ssl_capath)) {
         /* Fail if we insist on successfully verifying the server. */
         failf(data, "error setting certificate verify locations:\n"
               "  CAfile: %s\n  CApath: %s",
@@ -2349,20 +2350,18 @@ static CURLcode ossl_connect_step1(struct connectdata 
*conn, int sockindex)
               ssl_capath ? ssl_capath : "none");
         return CURLE_SSL_CACERT_BADFILE;
       }
-      /* Just continue with a warning if no strict  certificate verification
-         is required. */
-      infof(data, "error setting certificate verify locations,"
-            " continuing anyway:\n");
+      else {
+        /* Everything is fine. */
+        infof(data, "successfully set certificate verify locations:\n"
+              "  CAfile: %s\n  CApath: %s\n",
+              ssl_cafile ? ssl_cafile : "none",
+              ssl_capath ? ssl_capath : "none");
+      }
     }
     else {
-      /* Everything is fine. */
-      infof(data, "successfully set certificate verify locations:\n");
-    }
-    infof(data,
-          "  CAfile: %s\n"
-          "  CApath: %s\n",
-          ssl_cafile ? ssl_cafile : "none",
-          ssl_capath ? ssl_capath : "none");
+      infof(data, "ignoring certificate verify locations due to "
+            "disabled peer verification\n");
+    }
   }
 #ifdef CURL_CA_FALLBACK
   else if(verifypeer) {

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