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Noted effect of fork() and execve().

This commit is contained in:
Michael Kerrisk 2006-07-22 14:26:12 +00:00
parent 75fcdb0894
commit ef828a01d8
2 changed files with 14 additions and 0 deletions
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8
man2/chroot.2
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@ -108,9 +108,17 @@ SVr4 documents additional EINTR, ENOLINK and EMULTIHOP error conditions.
X/OPEN does not document EIO, ENOMEM or EFAULT error conditions. X/OPEN does not document EIO, ENOMEM or EFAULT error conditions.
This interface is marked as legacy by X/OPEN. This interface is marked as legacy by X/OPEN.
.SH NOTES .SH NOTES
A child process created via
.BR fork (2)
inherits its parent's root directory.
The root directory is left unchanged by
.BR execve (2).
FreeBSD has a stronger FreeBSD has a stronger
.BR jail () .BR jail ()
system call. system call.
.\" FIXME -- eventually say something about containers,
.\" virtual servers, etc.?
.SH "SEE ALSO" .SH "SEE ALSO"
.BR chdir (2), .BR chdir (2),
.BR path_resolution (2) .BR path_resolution (2)

6
man2/umask.2
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@ -86,6 +86,12 @@ resulting file will be:
.SH "RETURN VALUE" .SH "RETURN VALUE"
This system call always succeeds and the previous value of the mask This system call always succeeds and the previous value of the mask
is returned. is returned.
.SH NOTES
A child process created via
.BR fork (2)
inherits its parent's umask.
The umask is left unchanged by
.BR execve (2).
.SH "CONFORMING TO" .SH "CONFORMING TO"
SVr4, SVID, POSIX, X/OPEN, 4.3BSD SVr4, SVID, POSIX, X/OPEN, 4.3BSD
.SH "SEE ALSO" .SH "SEE ALSO"