pop3: Refactored the mailbox variable as it didn't reflect it's purpose

Updated the mailbox variable to correctly reflect it's purpose. The
name mailbox was a leftover from when IMAP and

pop3: Refactored the mailbox variable as it didn't reflect it's purpose

Updated the mailbox variable to correctly reflect it's purpose. The
name mailbox was a leftover from when IMAP and POP3 support was
initially added to curl.

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pingpong: Renamed curl_ftptransfer to curl_pp_transfer

pop3: Removed some FTP heritage leftovers

Removed user and passwd from the POP3 struct as these cannot be set on
a per-request basis and are leftover from legacy FTP code.

Chang

pop3: Removed some FTP heritage leftovers

Removed user and passwd from the POP3 struct as these cannot be set on
a per-request basis and are leftover from legacy FTP code.

Changed some comments still using FTP terminology.

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pop3: Moved the per-request variables to the per-request data structure

Moved the mailbox and custom request variables from the per-connection
struct pop3_conn to the new per-request str

pop3: Moved the per-request variables to the per-request data structure

Moved the mailbox and custom request variables from the per-connection
struct pop3_conn to the new per-request struct and fixed references
accordingly.

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pop3: Introduced a custom POP3 structure for per-request data

Created a new POP3 structure and changed the type of the pop3 proto
variable in connectdata from FTP* to POP*.

email: Post STARTLS capability code tidy up (Part One)

Corrected the order of the CAPA / CAPABILITY state machine constants to
match the execution order.

pop3: Added support for the STLS capability (Part One)

Introduced detection of the STLS capability, in order to add support
for TLS upgrades without unconditionally sending the STLS comm

pop3: Added support for the STLS capability (Part One)

Introduced detection of the STLS capability, in order to add support
for TLS upgrades without unconditionally sending the STLS command.

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email: Updated comment regarding ssldone usage

Updated the ssldone comment as multi mode is always used internally now.

pop3: Added support for non-blocking SSL upgrade

Added support for asynchronous SSL upgrade when using the
multi-interface.

Revert changes relative to lib/*.[ch] recent renaming

This reverts renaming and usage of lib/*.h header files done
28-12-2012, reverting 2 commits:

f871de0... build: make use

Revert changes relative to lib/*.[ch] recent renaming

This reverts renaming and usage of lib/*.h header files done
28-12-2012, reverting 2 commits:

f871de0... build: make use of 76 lib/*.h renamed files
ffd8e12... build: rename 76 lib/*.h files

This also reverts removal of redundant include guard (redundant thanks
to changes in above commits) done 2-12-2013, reverting 1 commit:

c087374... curl_setup.h: remove redundant include guard

This also reverts renaming and usage of lib/*.c source files done
3-12-2013, reverting 3 commits:

13606bb... build: make use of 93 lib/*.c renamed files
5b6e792... build: rename 93 lib/*.c files
7d83dff... build: commit 13606bbfde follow-up 1

Start of related discussion thread:

http://curl.haxx.se/mail/lib-2013-01/0012.html

Asking for confirmation on pushing this revertion commit:

http://curl.haxx.se/mail/lib-2013-01/0048.html

Confirmation summary:

http://curl.haxx.se/mail/lib-2013-01/0079.html

NOTICE: The list of 2 files that have been modified by other
intermixed commits, while renamed, and also by at least one
of the 6 commits this one reverts follows below. These 2 files
will exhibit a hole in history unless git's '--follow' option
is used when viewing logs.

lib/curl_imap.h
lib/curl_smtp.h

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pop3: Added support for apop authentication

pop3: Enhanced the extended authentication mechanism detection

Enhanced the authentication type / mechanism detection in preparation
for the introduction of APOP support.

sasl: Re-factored mechanism constants in preparation for APOP work

pop3: Post authentication code tidy up

Corrected lines longer than 78 characters.

Changed POP3_AUTH_FINAL to POP3_AUTH to match SMTP code now that the
AUTH command is no longer

pop3: Post authentication code tidy up

Corrected lines longer than 78 characters.

Changed POP3_AUTH_FINAL to POP3_AUTH to match SMTP code now that the
AUTH command is no longer sent on its own.

Introduced some comments in data sending functions.

Another attempt at trying to rational code and comment style.

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pop3: Added support for sasl digest-md5 authentication

pop3: Changed the sasl mechanism detection from auth to capa

Not all SASL enabled POP3 servers support the AUTH command on its own
when trying to detect the supported mechanisms. As such

pop3: Changed the sasl mechanism detection from auth to capa

Not all SASL enabled POP3 servers support the AUTH command on its own
when trying to detect the supported mechanisms. As such changed the
mechanism detection to use the CAPA command instead.

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pop3: Added support for sasl cram-md5 authentication

pop3: Added support for sasl ntlm authentication

pop3: Added support for sasl login authentication

pop3: Added support for sasl plain text authentication

pop3: Small code tidy up following authentication work so far

Changed the order of the state machine to match the order of actual
events.

Reworked some comments and function par

pop3: Small code tidy up following authentication work so far

Changed the order of the state machine to match the order of actual
events.

Reworked some comments and function parameter positioning that I missed
the other day.

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pop3: Added support for SASL based authentication mechanism detection

Added support for detecting the supported SASL authentication mechanisms
via the AUTH command. There are two ways of

pop3: Added support for SASL based authentication mechanism detection

Added support for detecting the supported SASL authentication mechanisms
via the AUTH command. There are two ways of detecting them, either by
using the AUTH command, that will return -ERR if not supported or by
using the CAPA command which will return SASL and the list of mechanisms
if supported, not include SASL if SASL authentication is not supported
or -ERR if the CAPA command is not supported. As such it seems simpler
to use the AUTH command and fallback to normal clear text authentication
if the the command is not supported.

Additionally updated the test cases to return -ERR when the AUTH command
is encountered. Additional test cases will be added when support for the
individual authentication mechanisms is added.

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pop3: Code tidy up before the introduction of authentication code

Moved EOB definition into header file.

Switched the logic around in pop3_endofresp() to allow for the
introduct

pop3: Code tidy up before the introduction of authentication code

Moved EOB definition into header file.

Switched the logic around in pop3_endofresp() to allow for the
introduction of auth-mechanism detection.

Repositioned second and third function variables where they will fit
within the 78 character line limit.

Tidied up some comments.

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pop3: Reworked the command sending and handling

Reworked the command sending from two specific LIST and RETR command
functions into a single command based function as well as the two

pop3: Reworked the command sending and handling

Reworked the command sending from two specific LIST and RETR command
functions into a single command based function as well as the two
associated response handlers into a generic command handler.

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pop3: Added support for additional pop3 commands

This feature allows the user to specify and use additional POP3
commands such as UIDL and DELE via libcurl's CURLOPT_CUSTOMREQUEST or

pop3: Added support for additional pop3 commands

This feature allows the user to specify and use additional POP3
commands such as UIDL and DELE via libcurl's CURLOPT_CUSTOMREQUEST or
curl's -X command line option.

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