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* sysdeps/unix/sysv/linux/openat.c (__atfct_seterrno): Use the same

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fstat check for ENOENT that should be EBADF as for ENOTDIR, and also
	check for missing /proc the same way.
This commit is contained in:
Roland McGrath 2006-02-02 10:16:17 +00:00
parent 30c14fdb7b
commit 212ab55aaa
2 changed files with 8 additions and 15 deletions
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4
ChangeLog
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@ -1,5 +1,9 @@
2006-02-02 Roland McGrath <roland@redhat.com>
* sysdeps/unix/sysv/linux/openat.c (__atfct_seterrno): Use the same
fstat check for ENOENT that should be EBADF as for ENOTDIR, and also
check for missing /proc the same way.
* include/errno.h [__cplusplus]: Avoid extra header magic for C++.
* manual/install.texi (Tools for Compilation): Require gcc 3.4,

19
sysdeps/unix/sysv/linux/openat.c
View File

@ -30,7 +30,8 @@
#if !defined OPENAT && !defined __ASSUME_ATFCTS
# define OPENAT openat
/* Set errno after a failed call. If BUF is not null,
it is a /proc/self/fd/ path name we just tried to use. */
void
attribute_hidden
__atfct_seterrno (int errval, int fd, const char *buf)
@ -39,7 +40,7 @@ __atfct_seterrno (int errval, int fd, const char *buf)
{
struct stat64 st;
if (errval == ENOTDIR)
if (errval == ENOTDIR || errval == ENOENT)
{
/* This can mean either the file descriptor is invalid or
/proc is not mounted. */
@ -48,23 +49,11 @@ __atfct_seterrno (int errval, int fd, const char *buf)
return;
/* If /proc is not mounted there is nothing we can do. */
if (S_ISDIR (st.st_mode)
if ((errval != ENOTDIR || S_ISDIR (st.st_mode))
&& (__xstat64 (_STAT_VER, "/proc/self/fd", &st) != 0
|| !S_ISDIR (st.st_mode)))
errval = ENOSYS;
}
else if (errval == ENOENT)
{
/* This could mean the file descriptor is not valid. We
reuse BUF for the stat call. Find the slash after the
file descriptor number. */
*(char *) strchr (buf + sizeof "/proc/self/fd", '/') = '\0';
int e = __lxstat64 (_STAT_VER, buf, &st);
if ((e == -1 && errno == ENOENT)
||(e == 0 && !S_ISLNK (st.st_mode)))
errval = EBADF;
}
}
__set_errno (errval);