1 /* Placed in the public domain. */
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.
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>
19 void kludge_FD_SET(int n, fd_set *set) {
22 int kludge_FD_ISSET(int n, fd_set *set) {
23 return FD_ISSET(n, set);
25 # endif /* __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) */
26 # endif /* __GNU_LIBRARY__ && __GLIBC_PREREQ */
27 #endif /* HAVE_FEATURES_H && _FORTIFY_SOURCE */