Front Page

---

Develop Index

Autobuilds

Autobuild Stats

Autobuild HOWTO

Source Activity

git stats »

---

Bugtracker »

Release Notes

TODO Release

Source code

---

Contribute

Internals

Run Tests

Test curl

Specifications

---

READMEs:

ares

curl_off_t

curlx

encoding

hostip

httpauth

memoryleak

multi_socket

pingpong

pipelining

Sponsors:
Haxx

pingpong explained

This contents is from the curl/lib/README.pingpong file.

Date: December 5, 2009
 
Pingpong
========
 
 Pingpong is just my (Daniel's) jestful collective name on the protocols that
 share a very similar kind of back-and-forth procedure with command and
 responses to and from the server. FTP was previously the only protocol in
 that family that libcurl supported, but when POP3, IMAP and SMTP joined the
 team I moved some of the internals into a separate pingpong module to be
 easier to get used by all these protocols to reduce code duplication and ease
 code re-use between these protocols.
 
FTP
 
 In 7.20.0 we converted code to use the new pingpong code from previously
 having been all "native" FTP code.
 
POP3
 
 There's no support in the documented URL format to specify the exact mail to
 get, but we support that as the path specified in the URL.
 
IMAP
 
SMTP
 
 There's no official URL syntax defined for SMTP, but we use only the generic
 one and we provide two additional libcurl options to specify receivers and
 sender of the actual mail.