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A tweak to:

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(File System): In access?, reword a bit, clarify real
versus effective ID handling, cross reference glibc on that, and
recommend against access tests in library functions.
This commit is contained in:
Kevin Ryde 2003-09-21 01:38:01 +00:00
parent a21ceb528d
commit 1cd9ea6915
1 changed files with 3 additions and 3 deletions
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6
doc/ref/posix.texi
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@ -568,9 +568,9 @@ attempt uses the effective ID.
A program which will never run set-UID/GID can ignore the difference A program which will never run set-UID/GID can ignore the difference
between real and effective IDs, but for maximum generality, especially between real and effective IDs, but for maximum generality, especially
in library functions, it's generally best not to use @code{access?} to in library functions, it's best not to use @code{access?} to predict
predict the result of an open or execute, instead simply attempt that the result of an open or execute, instead simply attempt that and
and catch any exception. catch any exception.
The main use for @code{access?} is to let a set-UID/GID program The main use for @code{access?} is to let a set-UID/GID program
determine what the invoking user would have been allowed to do, determine what the invoking user would have been allowed to do,