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Move errno setting code in separate function __atfct_seterrno_2.

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This commit is contained in:
Ulrich Drepper 2005-12-16 00:13:45 +00:00
parent 29402b1285
commit fc30e8dafa
1 changed files with 48 additions and 39 deletions
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87
sysdeps/unix/sysv/linux/renameat.c
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@ -23,6 +23,52 @@
#include <sysdep.h>
void
attribute_hidden
__atfct_seterrno_2 (int errval, int fd1, const char *buf1, int fd2,
const char *buf2)
{
if (errval == ENOTDIR && (buf1 != NULL || buf2 != NULL))
{
/* This can mean either the file descriptor is invalid or
/proc is not mounted. */
struct stat64 st;
if (buf1 != NULL)
{
if (__fxstat64 (_STAT_VER, fd1, &st) != 0)
/* errno is already set correctly. */
return;
/* If /proc is not mounted there is nothing we can do. */
if (S_ISDIR (st.st_mode)
&& (__xstat64 (_STAT_VER, "/proc/self/fd", &st) != 0
|| !S_ISDIR (st.st_mode)))
{
errval = ENOSYS;
goto out;
}
}
if (buf2 != NULL)
{
if (__fxstat64 (_STAT_VER, fd2, &st) != 0)
/* errno is already set correctly. */
return;
/* If /proc is not mounted there is nothing we can do. */
if (S_ISDIR (st.st_mode)
&& (__xstat64 (_STAT_VER, "/proc/self/fd", &st) != 0
|| !S_ISDIR (st.st_mode)))
errval = ENOSYS;
}
}
out:
__set_errno (errval);
}
/* Rename the file OLD relative to OLDFD to NEW relative to NEWFD. */
int
renameat (oldfd, old, newfd, new)
@ -76,45 +122,8 @@ renameat (oldfd, old, newfd, new)
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0))
{
int errval = INTERNAL_SYSCALL_ERRNO (result, err);
if (errval == ENOTDIR && (bufnew != NULL || bufold != NULL))
{
/* This can mean either the file descriptor is invalid or
/proc is not mounted. */
struct stat64 st;
if (bufnew != NULL)
{
if (__fxstat64 (_STAT_VER, newfd, &st) != 0)
/* errno is already set correctly. */
return -1;
/* If /proc is not mounted there is nothing we can do. */
if (S_ISDIR (st.st_mode)
&& (__xstat64 (_STAT_VER, "/proc/self/fd", &st) != 0
|| !S_ISDIR (st.st_mode)))
{
errval = ENOSYS;
goto out;
}
}
if (bufold != NULL)
{
if (__fxstat64 (_STAT_VER, oldfd, &st) != 0)
/* errno is already set correctly. */
return -1;
/* If /proc is not mounted there is nothing we can do. */
if (S_ISDIR (st.st_mode)
&& (__xstat64 (_STAT_VER, "/proc/self/fd", &st) != 0
|| !S_ISDIR (st.st_mode)))
errval = ENOSYS;
}
}
out:
__set_errno (errval);
__atfct_seterrno_2 (INTERNAL_SYSCALL_ERRNO (result, err), newfd, bufnew,
oldfd, bufold);
result = -1;
}