diff options
Diffstat (limited to 'man7/unix.7')
| -rw-r--r-- | man7/unix.7 | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/man7/unix.7 b/man7/unix.7 index 46b1914b84..0850ebc1be 100644 --- a/man7/unix.7 +++ b/man7/unix.7 @@ -369,8 +369,16 @@ For more information see .B SCM_RIGHTS Send or receive a set of open file descriptors from another process. The data portion contains an integer array of the file descriptors. -The passed file descriptors behave as though they have been created with -.BR dup (2). +Commonly, this operation is referred to as "passing a file descriptor" +to another process. +However, more accurately, +what is being passed is a reference to an open file description (see +.BR open (2)), +and in the receiving process it is likely that a different +file descriptor number will be used. +Semantically, this operation is equivalent to duplicating +.RB ( dup (2)) +a file descriptor into the file descriptor table of another process. .IP The kernel constant .BR SCM_MAX_FD |