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Language improvements.

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Submitted by:	wblock
MFC after:	3 days
Differential revision:	https://reviews.freebsd.org/D10826
This commit is contained in:
Konstantin Belousov 2017-07-14 15:42:12 +00:00
parent af5147ecaf
commit 9152cb3868
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=320989
1 changed files with 10 additions and 9 deletions
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19
libexec/rtld-elf/rtld.1
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@ -309,7 +309,7 @@ The syntax of the direct invocation is
.Op Ar image arguments .Op Ar image arguments
.Ed .Ed
.Pp .Pp
The options are as follows: The options are:
.Bl -tag -width indent .Bl -tag -width indent
.It Fl f Ar fd .It Fl f Ar fd
File descriptor File descriptor
@ -339,21 +339,22 @@ Ends the
options. options.
The argument following The argument following
.Fl - .Fl -
is interpreted as the path of binary to execute. is interpreted as the path of the binary to execute.
.El .El
.Pp .Pp
To conform to user expectation to not break some naively restricted In the direct execution mode,
execution environments, in the direct execution mode
.Nm .Nm
emulates verification of the binary execute permission emulates verification of the binary execute permission for the
for current user. current user.
This is done to avoid breaking user expectations in naively restricted
execution environments.
The verification only uses Unix The verification only uses Unix
.Dv DACs , .Dv DACs ,
ignores ignores
.Dv ACLs .Dv ACLs
and is racy by its nature. and is naturally prone to race conditions.
The environments which rely on such restrictions are weak Environments which rely on such restrictions are weak
and breakable on its own. and breakable on their own.
.Sh FILES .Sh FILES
.Bl -tag -width ".Pa /var/run/ld-elf32.so.hints" -compact .Bl -tag -width ".Pa /var/run/ld-elf32.so.hints" -compact
.It Pa /var/run/ld-elf.so.hints .It Pa /var/run/ld-elf.so.hints