examples: Standardised username and password settings for all email examples

Replaced the use of CURLOPT_USERPWD for the preferred CURLOPT_USERNAME
and CURLOPT_PASSWORD options and used the same username and password for
all email examples which is the same as that used in the test suite.

docs/examples/imap-append.c

@@ -84,7 +84,8 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
     /* Set username and password */
-    curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
 
     /* This will create a new message 100. Note that you should perform an
      * EXAMINE command to obtain the UID of the next message to create and a

docs/examples/imap-copy.c

@@ -36,7 +36,8 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
     /* Set username and password */
-    curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
 
     /* This is source mailbox folder to select */
     curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX");

docs/examples/imap-create.c

@@ -36,7 +36,8 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
     /* Set username and password */
-    curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
 
     /* This is just the server URL */
     curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");

docs/examples/imap-delete.c

@@ -36,7 +36,8 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
     /* Set username and password */
-    curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
 
     /* This is just the server URL */
     curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");

docs/examples/imap-examine.c

@@ -36,7 +36,8 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
     /* Set username and password */
-    curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
 
     /* This is just the server URL */
     curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com");

docs/examples/imap-fetch.c

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2014, 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
@@ -36,7 +36,8 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
     /* Set username and password */
-    curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
 
     /* This will fetch message 1 from the user's inbox */
     curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX/;UID=1");

docs/examples/imap-list.c

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2014, 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
@@ -36,7 +36,8 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
     /* Set username and password */
-    curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
 
     /* This will list the folders within the user's mailbox. If you want to
      * list the folders within a specific folder, for example the inbox, then

docs/examples/imap-search.c

@@ -36,7 +36,8 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
     /* Set username and password */
-    curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
 
     /* This is mailbox folder to select */
     curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX");

docs/examples/imap-store.c

@@ -36,7 +36,8 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
     /* Set username and password */
-    curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
 
     /* This is the mailbox folder to select */
     curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/INBOX");

docs/examples/pop3s.c

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2014, 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
@@ -30,7 +30,8 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
     /* Set username and password */
-    curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
 
     /* This will only fetch the message with ID "1" of the given mailbox */
     curl_easy_setopt(curl, CURLOPT_URL, "pop3s://user@pop.example.com/1");
@@ -61,13 +62,15 @@ int main(void)
 
     /* Perform the request, res will get the return code */
     res = curl_easy_perform(curl);
+
     /* Check for errors */
     if(res != CURLE_OK)
       fprintf(stderr, "curl_easy_perform() failed: %s\n",
               curl_easy_strerror(res));
 
-    /* always cleanup */
+    /* Always cleanup */
     curl_easy_cleanup(curl);
   }
+
   return 0;
 }

docs/examples/pop3slist.c

@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2014, 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
@@ -30,7 +30,8 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
     /* Set username and password */
-    curl_easy_setopt(curl, CURLOPT_USERPWD, "user:password");
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
 
     /* This will list every message of the given mailbox */
     curl_easy_setopt(curl, CURLOPT_URL, "pop3s://user@pop.example.com/");
@@ -61,13 +62,15 @@ int main(void)
 
     /* Perform the request, res will get the return code */
     res = curl_easy_perform(curl);
+
     /* Check for errors */
     if(res != CURLE_OK)
       fprintf(stderr, "curl_easy_perform() failed: %s\n",
               curl_easy_strerror(res));
 
-    /* always cleanup */
+    /* Always cleanup */
     curl_easy_cleanup(curl);
   }
+
   return 0;
 }

docs/examples/smtp-multi.c

@@ -29,8 +29,6 @@
 /*
  * This is the list of basic details you need to tweak to get things right.
  */
-#define USERNAME "user@example.com"
-#define PASSWORD "123qwerty"
 #define SERVER   "smtp.example.com"
 #define PORT     ":587" /* it is a colon+port string, but you can set it
                            to "" to use the default port */
@@ -126,8 +124,8 @@ int main(void)
   recipients = curl_slist_append(recipients, CC);
 
   curl_easy_setopt(curl, CURLOPT_URL, "smtp://" SERVER PORT);
-  curl_easy_setopt(curl, CURLOPT_USERNAME, USERNAME);
+  curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
-  curl_easy_setopt(curl, CURLOPT_PASSWORD, PASSWORD);
+  curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
   curl_easy_setopt(curl, CURLOPT_READFUNCTION, payload_source);
   curl_easy_setopt(curl, CURLOPT_READDATA, &upload_ctx);
   curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);

docs/examples/smtp-tls.c

@@ -24,8 +24,9 @@
 #include <curl/curl.h>
 
 /* This is a simple example showing how to send mail using libcurl's SMTP
- * capabilities. It builds on the smtp-send.c example, adding some
+ * capabilities. It builds on the smtp-send.c example to add authentication
- * authentication and transport security.
+ * and, more importantly, transport security to protect the authentication
+ * details from being snooped.
  */
 
 #define FROM    "<sender@example.org>"
@@ -84,6 +85,10 @@ int main(void)
 
   curl = curl_easy_init();
   if(curl) {
+    /* Set username and password */
+    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
+    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
+
     /* This is the URL for your mailserver. Note the use of port 587 here,
      * instead of the normal SMTP port (25). Port 587 is commonly used for
      * secure mail submission (see RFC4403), but you should use whatever
@@ -110,12 +115,6 @@ int main(void)
      * docs/SSLCERTS for more information. */
     curl_easy_setopt(curl, CURLOPT_CAINFO, "/path/to/certificate.pem");
 
-    /* A common reason for requiring transport security is to protect
-     * authentication details (user names and passwords) from being "snooped"
-     * on the network. Here is how the user name and password are provided: */
-    curl_easy_setopt(curl, CURLOPT_USERNAME, "user@example.net");
-    curl_easy_setopt(curl, CURLOPT_PASSWORD, "P@ssw0rd");
-
     /* Value for envelope reverse-path */
     curl_easy_setopt(curl, CURLOPT_MAIL_FROM, FROM);