Date: Sun, 5 Jul 2009 20:20:09 +0000 (UTC) From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r195380 - head/lib/libc/sys Message-ID: <200907052020.n65KK9Cs058765@svn.freebsd.org>
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Author: pjd Date: Sun Jul 5 20:20:09 2009 New Revision: 195380 URL: http://svn.freebsd.org/changeset/base/195380 Log: - Don't suggest opening file for writing in preparation for fexecve(2). - execve(2)/fexecve(2) won't return ETXTBSY if file is open for reading. Approved by: re (kib) Modified: head/lib/libc/sys/execve.2 Modified: head/lib/libc/sys/execve.2 ============================================================================== --- head/lib/libc/sys/execve.2 Sun Jul 5 18:17:37 2009 (r195379) +++ head/lib/libc/sys/execve.2 Sun Jul 5 20:20:09 2009 (r195380) @@ -220,13 +220,11 @@ Since execute permission is checked by .Fn fexecve , the file descriptor .Fa fd -need not have been -opened with the +need not have been opened with the .Dv O_EXEC flag. -However, if the file to be executed denies read and write -permission for the process preparing to do the exec, the only way to -provide the +However, if the file to be executed denies read permission for the process +preparing to do the exec, the only way to provide the .Fa fd to .Fn fexecve @@ -234,6 +232,7 @@ is to use the .Dv O_EXEC flag when opening .Fa fd . +Note that the file to be executed can not be open for writing. .Sh RETURN VALUES As the .Fn execve @@ -277,7 +276,7 @@ The new process file has the appropriate permission, but has an invalid magic number in its header. .It Bq Er ETXTBSY The new process file is a pure procedure (shared text) -file that is currently open for writing or reading by some process. +file that is currently open for writing by some process. .It Bq Er ENOMEM The new process requires more virtual memory than is allowed by the imposed maximumhome | help
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