vauth/cleartext: Update the PLAIN login function signature to match RFC 4616

Functionally this doesn't change anything as we still use the username
for both the authorisation identity and the authentication identity.

Closes #3757

diff --git a/lib/curl_sasl.c b/lib/curl_sasl.c
index 456e08325a72d78df4269c46d6f0360aa6dd8bca..94b51e54199be73e530db53882055e704c5b70ad 100644 (file)
--- a/lib/curl_sasl.c
+++ b/lib/curl_sasl.c
@@ -367,8 +367,8 @@ CURLcode Curl_sasl_start(struct SASL *sasl, struct connectdata *conn,
       sasl->authused = SASL_MECH_PLAIN;
 
       if(force_ir || data->set.sasl_ir)
-        result = Curl_auth_create_plain_message(data, conn->user, conn->passwd,
-                                                &resp, &len);
+        result = Curl_auth_create_plain_message(data, conn->user, conn->user,
+                                                conn->passwd, &resp, &len);
     }
     else if(enabledmechs & SASL_MECH_LOGIN) {
       mech = SASL_MECH_STRING_LOGIN;
@@ -450,9 +450,8 @@ CURLcode Curl_sasl_continue(struct SASL *sasl, struct connectdata *conn,
     *progress = SASL_DONE;
     return result;
   case SASL_PLAIN:
-    result = Curl_auth_create_plain_message(data, conn->user, conn->passwd,
-                                            &resp,
-                                            &len);
+    result = Curl_auth_create_plain_message(data, conn->user, conn->user,
+                                            conn->passwd, &resp, &len);
     break;
   case SASL_LOGIN:
     result = Curl_auth_create_login_message(data, conn->user, &resp, &len);

diff --git a/lib/vauth/cleartext.c b/lib/vauth/cleartext.c
index be6d6111e22e20f0eed3c67e4e1e865654186459..0017d583689f1ce49fad899917e711c42b8827b4 100644 (file)
--- a/lib/vauth/cleartext.c
+++ b/lib/vauth/cleartext.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2019, 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
@@ -49,8 +49,9 @@
  * Parameters:
  *
  * data    [in]     - The session handle.
- * userp   [in]     - The user name.
- * passwdp [in]     - The user's password.
+ * authzid [in]     - The authorization identity.
+ * authcid [in]     - The authentication identity.
+ * passwd  [in]     - The password.
  * outptr  [in/out] - The address where a pointer to newly allocated memory
  *                    holding the result will be stored upon completion.
  * outlen  [out]    - The length of the output message.
@@ -58,36 +59,39 @@
  * Returns CURLE_OK on success.
  */
 CURLcode Curl_auth_create_plain_message(struct Curl_easy *data,
-                                        const char *userp,
-                                        const char *passwdp,
+                                        const char *authzid,
+                                        const char *authcid,
+                                        const char *passwd,
                                         char **outptr, size_t *outlen)
 {
   CURLcode result;
   char *plainauth;
-  size_t ulen;
+  size_t zlen;
+  size_t clen;
   size_t plen;
   size_t plainlen;
 
   *outlen = 0;
   *outptr = NULL;
-  ulen = strlen(userp);
-  plen = strlen(passwdp);
+  zlen = strlen(authzid);
+  clen = strlen(authcid);
+  plen = strlen(passwd);
 
   /* Compute binary message length. Check for overflows. */
-  if((ulen > SIZE_T_MAX/4) || (plen > (SIZE_T_MAX/2 - 2)))
+  if(((zlen + clen) > SIZE_T_MAX/4) || (plen > (SIZE_T_MAX/2 - 2)))
     return CURLE_OUT_OF_MEMORY;
-  plainlen = 2 * ulen + plen + 2;
+  plainlen = zlen + clen + plen + 2;
 
   plainauth = malloc(plainlen);
   if(!plainauth)
     return CURLE_OUT_OF_MEMORY;
 
   /* Calculate the reply */
-  memcpy(plainauth, userp, ulen);
-  plainauth[ulen] = '\0';
-  memcpy(plainauth + ulen + 1, userp, ulen);
-  plainauth[2 * ulen + 1] = '\0';
-  memcpy(plainauth + 2 * ulen + 2, passwdp, plen);
+  memcpy(plainauth, authzid, zlen);
+  plainauth[zlen] = '\0';
+  memcpy(plainauth + zlen + 1, authcid, clen);
+  plainauth[zlen + clen + 1] = '\0';
+  memcpy(plainauth + zlen + clen + 2, passwd, plen);
 
   /* Base64 encode the reply */
   result = Curl_base64_encode(data, plainauth, plainlen, outptr, outlen);

diff --git a/lib/vauth/vauth.h b/lib/vauth/vauth.h
index 13ddc41f76a4b84f7ac912bb8886daa47646e9f0..1cd03c7ffbed62b79680151213dd559cd48b302b 100644 (file)
--- a/lib/vauth/vauth.h
+++ b/lib/vauth/vauth.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 2014 - 2017, Steve Holme, <steve_holme@hotmail.com>.
+ * Copyright (C) 2014 - 2019, Steve Holme, <steve_holme@hotmail.com>.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -60,8 +60,9 @@ bool Curl_auth_user_contains_domain(const char *user);
 
 /* This is used to generate a base64 encoded PLAIN cleartext message */
 CURLcode Curl_auth_create_plain_message(struct Curl_easy *data,
-                                        const char *userp,
-                                        const char *passwdp,
+                                        const char *authzid,
+                                        const char *authcid,
+                                        const char *passwd,
                                         char **outptr, size_t *outlen);
 
 /* This is used to generate a base64 encoded LOGIN cleartext message */