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bsd-user: Implement do_freebsd_realpathat syscall
Signed-off-by: Mikaël Urankar <mikael.urankar@gmail.com> Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Warner Losh <imp@bsdimp.com>
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@ -634,4 +634,30 @@ static inline abi_long do_freebsd_fcntl(abi_long arg1, abi_long arg2,
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return ret;
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}
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#if defined(__FreeBSD_version) && __FreeBSD_version >= 1300080
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extern int __realpathat(int fd, const char *path, char *buf, size_t size,
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int flags);
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/* https://svnweb.freebsd.org/base?view=revision&revision=358172 */
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/* no man page */
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static inline abi_long do_freebsd_realpathat(abi_long arg1, abi_long arg2,
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abi_long arg3, abi_long arg4, abi_long arg5)
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{
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abi_long ret;
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void *p, *b;
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LOCK_PATH(p, arg2);
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b = lock_user(VERIFY_WRITE, arg3, arg4, 0);
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if (b == NULL) {
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UNLOCK_PATH(p, arg2);
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return -TARGET_EFAULT;
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}
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ret = get_errno(__realpathat(arg1, p, b, arg4, arg5));
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UNLOCK_PATH(p, arg2);
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unlock_user(b, arg3, ret);
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return ret;
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}
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#endif
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#endif /* BSD_USER_FREEBSD_OS_STAT_H */
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