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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2012-04-16 09:05:00 +1200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2012-04-17 23:09:04 +1200 |
| commit | 1e4e3badf3e172eeb064f9a52725e5d61562572a (patch) | |
| tree | f01b65e72a58a3bff3bf337193138ce4096277ba /man7/unix.7 | |
| parent | 486fccf2e73926a0c36c0252439c57eae96591ea (diff) | |
| download | man-pages-1e4e3badf3e172eeb064f9a52725e5d61562572a.tar.gz | |
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>
Diffstat (limited to 'man7/unix.7')
| -rw-r--r-- | man7/unix.7 | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/man7/unix.7 b/man7/unix.7 index 4b3e1ee2e2..adbfd7961e 100644 --- a/man7/unix.7 +++ b/man7/unix.7 @@ -12,7 +12,7 @@ .\" address that can appear in the sockaddr_un structure: pathname, .\" 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 unix, AF_UNIX, AF_LOCAL \- Sockets for local interprocess communication @@ -166,7 +166,10 @@ then the socket is autobound to an abstract address. The address consists of a null byte followed by 5 bytes in the character set .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 The following paragraphs describe domain-specific details and unsupported features of the sockets API for UNIX domain sockets on Linux. |