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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:40:04 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:40:04 +0000
commit25505898530a333011f4fd5cbc841ad6b26c089c (patch)
tree333a33fdd60930bcccc3f177ed9467d535e9bac6 /openbsd-compat/kludge-fd_set.c
parentInitial commit. (diff)
downloadopenssh-25505898530a333011f4fd5cbc841ad6b26c089c.tar.xz
openssh-25505898530a333011f4fd5cbc841ad6b26c089c.zip
Adding upstream version 1:9.2p1.upstream/1%9.2p1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'openbsd-compat/kludge-fd_set.c')
-rw-r--r--openbsd-compat/kludge-fd_set.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/openbsd-compat/kludge-fd_set.c b/openbsd-compat/kludge-fd_set.c
new file mode 100644
index 0000000..6c2ffb6
--- /dev/null
+++ b/openbsd-compat/kludge-fd_set.c
@@ -0,0 +1,28 @@
+/* Placed in the public domain. */
+
+/*
+ * _FORTIFY_SOURCE includes a misguided check for FD_SET(n)/FD_ISSET(b)
+ * where n > FD_SETSIZE. This breaks OpenSSH and other programs that
+ * explicitly allocate fd_sets. To avoid this, we wrap FD_SET in a
+ * function compiled without _FORTIFY_SOURCE.
+ */
+
+#include "config.h"
+
+#if defined(HAVE_FEATURES_H) && defined(_FORTIFY_SOURCE)
+# include <features.h>
+# if defined(__GNU_LIBRARY__) && defined(__GLIBC_PREREQ)
+# if __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0)
+# undef _FORTIFY_SOURCE
+# undef __USE_FORTIFY_LEVEL
+# include <sys/socket.h>
+void kludge_FD_SET(int n, fd_set *set) {
+ FD_SET(n, set);
+}
+int kludge_FD_ISSET(int n, fd_set *set) {
+ return FD_ISSET(n, set);
+}
+# endif /* __GLIBC_PREREQ(2, 15) && (_FORTIFY_SOURCE > 0) */
+# endif /* __GNU_LIBRARY__ && __GLIBC_PREREQ */
+#endif /* HAVE_FEATURES_H && _FORTIFY_SOURCE */
+