Armel Asselin separated CA cert verification problems from problems with

reading the (local) CA cert file to let users easier pinpoint the actual
problem. CURLE_SSL_CACERT_BADFILE (77) is the new libcurl error code.

CHANGES

@@ -6,6 +6,11 @@
 
                                   Changelog
 
+Daniel (21 October 2006)
+- Armel Asselin separated CA cert verification problems from problems with
+  reading the (local) CA cert file to let users easier pinpoint the actual
+  problem. CURLE_SSL_CACERT_BADFILE (77) is the new libcurl error code.
+
 Daniel (18 October 2006)
 - Removed the "protocol-guessing" for URLs with host names starting with FTPS
   or TELNET since they are practically non-existant. This leaves us with only

RELEASE-NOTES

@@ -10,7 +10,8 @@ Curl and libcurl 7.16.0
  Number of contributors:                   515
 
 This release includes the following changes:
-
+ 
+ o Added CURLE_SSL_CACERT_BADFILE
  o Added CURLMOPT_TIMERFUNCTION
  o The CURLOPT_SOURCE_* options are removed and so are the --3p* command line
    options

docs/libcurl/libcurl-errors.3

@@ -174,7 +174,7 @@ problem with the local client certificate
 .IP "CURLE_SSL_CIPHER (59)"
 couldn't use specified cipher
 .IP "CURLE_SSL_CACERT (60)"
-problem with the CA cert (path? access rights?) 
+peer certificate cannot be authenticated with known CA certificates
 .IP "CURLE_BAD_CONTENT_ENCODING (61)"
 Unrecognized transfer encoding
 .IP "CURLE_LDAP_INVALID_URL (62)"
@@ -208,6 +208,8 @@ No such TFTP user
 Character conversion failed
 .IP "CURLE_CONV_REQD (76)"
 Caller must register conversion callbacks
+.IP "CURLE_SSL_CACERT_BADFILE (77)"
+Problem with reading the SSL CA cert (path? access rights?)
 .SH "CURLMcode"
 This is the generic return code used by functions in the libcurl multi
 interface. Also consider \fIcurl_multi_strerror(3)\fP.

include/curl/curl.h

@@ -390,6 +390,8 @@ typedef enum {
                                     CURLOPT_CONV_FROM_NETWORK_FUNCTION,
                                     CURLOPT_CONV_TO_NETWORK_FUNCTION, and
                                     CURLOPT_CONV_FROM_UTF8_FUNCTION */
+  CURLE_SSL_CACERT_BADFILE,      /* 77 - could not load CACERT file, missing
+                                    or wrong format */
   CURL_LAST /* never use! */
 } CURLcode;
 

lib/gtls.c

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2005, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2006, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -234,9 +234,12 @@ Curl_gtls_connect(struct connectdata *conn,
     rc = gnutls_certificate_set_x509_trust_file(conn->ssl[sockindex].cred,
                                                 data->set.ssl.CAfile,
                                                 GNUTLS_X509_FMT_PEM);
-    if(rc < 0)
+    if(rc < 0) {
       infof(data, "error reading ca cert file %s (%s)\n",
             data->set.ssl.CAfile, gnutls_strerror(rc));
+      if (data->set.ssl.verifypeer)
+        return CURLE_SSL_CACERT_BADFILE;
+    }
     else
       infof(data, "found %d certificates in %s\n",
             rc, data->set.ssl.CAfile);

lib/ssluse.c

@@ -1272,7 +1272,7 @@ Curl_ossl_connect_step1(struct connectdata *conn,
               "  CAfile: %s\n  CApath: %s\n",
               data->set.ssl.CAfile ? data->set.ssl.CAfile : "none",
               data->set.ssl.CApath ? data->set.ssl.CApath : "none");
-        return CURLE_SSL_CACERT;
+        return CURLE_SSL_CACERT_BADFILE;
       }
       else {
         /* Just continue with a warning if no strict  certificate verification

lib/strerror.c

@@ -227,6 +227,9 @@ curl_easy_strerror(CURLcode error)
     return "couldn't use specified SSL cipher";
 
   case CURLE_SSL_CACERT:
+    return "peer certificate cannot be authenticated with known CA certificates";
+
+  case CURLE_SSL_CACERT_BADFILE:
     return "problem with the SSL CA cert (path? access rights?)";
 
   case CURLE_BAD_CONTENT_ENCODING:

tests/data/test305

@@ -28,6 +28,6 @@ https://%HOSTIP:%HTTPSPORT/want/305 --cacert moooo
 <protocol>
 </protocol>
 <errorcode>
-60
+77
 </errorcode>
 </verify>