1/* Placed in the public domain.  */
2
3/*
4 * _FORTIFY_SOURCE includes a misguided check for FD_SET(n)/FD_ISSET(b)
5 * where n > FD_SETSIZE. This breaks OpenSSH and other programs that
6 * explicitly allocate fd_sets. To avoid this, we wrap FD_SET in a
7 * function compiled without _FORTIFY_SOURCE.
8 */
9
10#include "config.h"
11
12#if defined(HAVE_FEATURES_H) && defined(_FORTIFY_SOURCE)
13# include <features.h>
14# if defined(__GNU_LIBRARY__) && defined(__GLIBC_PREREQ)
15#  if __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0)
16#   undef _FORTIFY_SOURCE
17#   undef __USE_FORTIFY_LEVEL
18#   include <sys/socket.h>
19void kludge_FD_SET(int n, fd_set *set) {
20	FD_SET(n, set);
21}
22int kludge_FD_ISSET(int n, fd_set *set) {
23	return FD_ISSET(n, set);
24}
25#  endif /* __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) */
26# endif /* __GNU_LIBRARY__ && __GLIBC_PREREQ */
27#endif /* HAVE_FEATURES_H && _FORTIFY_SOURCE */
28
29