This commit fix the following similar warnings:
opentracker.c:562:7: warning: ignoring return value of ‘setegid’
declared with attribute ‘warn_unused_result’ [-Wunused-result]
[…]
The man page of these functions ask users to explicitly check the return
value in case of any error happening.
Add an iterator for all torrents. It's slower but for stats it's okay.
Move some stats collection stuff to the new iterator. More to come.
Start a "report all stats" page.
Start fixing the code to identify "busy" networks.
Add the concept of hosts allowed to proxy.
Add a parser for the X-Forwarded-For: HTTP header.
Clean up HTTP Header handling code. (Remove some left overs of now vanished sync code).
* the new workstruct also introduces a well defined buffer and result passing path
* a new function scan_find_keywords is a wrapper around scan_urlencoded_query that maps keys in url to values passed in an array of ot_keywords structs
* this new function cleans up much of url parameter parsing work, where read_ptr and write_ptr have been introduced rather than the confusing char *c, *data variables
* I now use memcmp instead of byte_diff to allow compiler to optimize constant size string compares
* got rid of UTORRENT_1600_WORKAROUND
* livesync_ticker is now only called from one (currently main) thread to avoid race conditions
* lock passing between add_peer_to_torrent and return_peers_for_torrent is now avoided by providing a more general add_peer_to_torrent_and_return_peers function that can be used with NULL parameters to not return any peers (in sync case)
* in order to keep a fast overview how many torrents opentracker maintains, every mutex_bucket_unlock operation expects an additional integer parameter that tells ot_mutex.c how many torrents have been added or removed. A function mutex_get_torrent_count has been introduced.
