diff options
| author | rofl0r <retnyg@gmx.net> | 2012-11-08 00:36:42 +0400 |
|---|---|---|
| committer | rofl0r <retnyg@gmx.net> | 2012-11-08 00:55:34 +0400 |
| commit | 8b19829de48724cf421143d585cecda2b027eb64 (patch) | |
| tree | 25a5f0169f4bbe99c62eef28a8c13320e1fd3759 | |
| parent | 03ee84060ec1d1e102ebaaba5fe16bc95d178295 (diff) | |
README: remove paragraph about now fixed fork problems.
| -rw-r--r-- | README | 33 |
1 files changed, 13 insertions, 20 deletions
@@ -9,29 +9,13 @@ ProxyChains ver 4.1 README this program works only on dynamically linked programs. also both proxychains and the program to call must use - the same dynamic linker (i.e. same libc) + the same dynamic linker (i.e. same libc). + why ? because in order to hook to libc functions like + connect(), dynamic loader facilities are used, namely + dl_sym() and LD_PRELOAD. ********************************* -*** Known limitations of the current version: *** - - when a process forks, does a DNS lookup in the child, and then uses - the ip in the parent, the corresponding ip mapping will not be found. - this is because the fork can't write back into the parents mapping table. - IRSSI shows this behaviour, so you have to pass the resolved ip address - to it. (you can use the proxyresolv script (requires "dig") to do so) - - this means that you can't currently use tor onion urls for irssi. - to solve this issue, an external data store (file, pipe, ...) has to - manage the dns <-> ip mapping. of course there has to be proper locking. - shm_open, mkstemp, are possible candidates for a file based approach, - the other option is to spawn some kind of server process that manages the - map lookups. since connect() etc are hooked, this must not be a TCP server. - - I am reluctant on doing this change, because the described behaviour - seems pretty idiotic (doing a fork only for a DNS lookup), and irssi - is currently the only known affected program. - *** Installation *** # needs a working C compiler, preferably gcc @@ -41,6 +25,15 @@ ProxyChains ver 4.1 README Changelog: ---------- + +Version 4.3 (not yet released): + fixes programs that do dns-lookups in child processes (fork()ed), + like irssi. to achieve this, support for compilation without pthreads + was sacrified. + +Version 4.2: + some bugfixes + Version 4.1 adds support for mac os x (i386, x86_64, ppc) all internal functions are threadsafe when compiled with -DTHREAD_SAFE (default). |