LDP
/
man-pages
mirror of https://github.com/mkerrisk/man-pages
0
1
Fork 0
Code Releases Activity

unix.7: Add a detail on autobind feature 

Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2012-04-16 09:05:00 +12:00
parent 486fccf2e7
commit 1e4e3badf3
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
man7/unix.7
View File

@ -12,7 +12,7 @@
.\" address that can appear in the sockaddr_un structure: pathname, .\" address that can appear in the sockaddr_un structure: pathname,
.\" unnamed, and abstract. .\" unnamed, and abstract.
.\" .\"
.TH UNIX 7 2011-09-15 "Linux" "Linux Programmer's Manual" .TH UNIX 7 2102-04-16 "Linux" "Linux Programmer's Manual"
.SH NAME .SH NAME
unix, AF_UNIX, AF_LOCAL \- Sockets for local unix, AF_UNIX, AF_LOCAL \- Sockets for local
interprocess communication interprocess communication
@ -166,7 +166,10 @@ then the socket is autobound to an abstract address.
The address consists of a null byte The address consists of a null byte
followed by 5 bytes in the character set followed by 5 bytes in the character set
.IR [0-9a-f] . .IR [0-9a-f] .
(Thus, there is a limit of 2^20 autobind addresses.) Thus, there is a limit of 2^20 autobind addresses.
(From Linux 2.1.15, when the autobind feature was added,
8 bytes were used, and the limit was thus 2^32 autobind addresses.
The change to 5 bytes came in Linux 2.3.15.)
.SS Sockets API .SS Sockets API
The following paragraphs describe domain-specific details and The following paragraphs describe domain-specific details and
unsupported features of the sockets API for UNIX domain sockets on Linux. unsupported features of the sockets API for UNIX domain sockets on Linux.