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Originally BSD return EINVAL for l_len < 0, but now POSIX wants it too,

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so implement POSIX l_len < 0 handling.
This commit is contained in:
Andrey A. Chernov 2001-08-23 15:40:30 +00:00
parent f10d314518
commit f510e1c2ec
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=82200
1 changed files with 6 additions and 3 deletions
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9
sys/kern/kern_lockf.c
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@ -106,8 +106,6 @@ lf_advlock(ap, head, size)
off_t start, end;
int error;
if (fl->l_len < 0)
return (EINVAL);
/*
* Convert the flock structure into a start and end.
*/
@ -134,7 +132,12 @@ lf_advlock(ap, head, size)
}
if (start < 0)
return (EINVAL);
if (fl->l_len == 0)
if (fl->l_len < 0) {
start += fl->l_len;
if (start <= 0)
return (EINVAL);
end = start - 1;
} else if (fl->l_len == 0)
end = -1;
else {
off_t oadd = fl->l_len - 1;