Date: Sun, 8 Dec 2002 10:30:44 -0800 (PST) From: Ian Dowse <iedowse@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/compat/linux linux_file.c Message-ID: <200212081830.gB8IUiV1092690@repoman.freebsd.org>
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iedowse 2002/12/08 10:30:44 PST
Modified files:
sys/compat/linux linux_file.c
Log:
Fix emulation of the fcntl64() syscall. In Linux, this is exactly
the same as fcntl() except that it supports the new 64-bit file
locking commands (LINUX_F_GETLK64 etc) that use the `flock64'
structure. We had been interpreting all flock structures passed to
fcntl64() as `struct flock64' instead of only the ones from F_*64
commands.
The glibc in linux_base-7 uses fcntl64() by default, but the bug
was often non-fatal since the misinterpretation typically only
causes junk to appear in the `l_len' field and most junk values are
accepted as valid range lengths. The result is occasional EINVAL
errors from F_SETLK and a few bytes after the supplied `struct
flock' getting clobbered during F_GETLK.
PR: kern/37656
Reviewed by: marcel
Approved by: re
MFC after: 1 week
Revision Changes Path
1.72 +33 -39 src/sys/compat/linux/linux_file.c
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