Adding debian version 2:4.20.0+dfsg-1~exp1.debian/2%4.20.0+dfsg-1_exp1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/debian/patches/use-bzero-instead-of-memset_s.diff b/debian/patches/use-bzero-instead-of-memset_s.diff
new file mode 100644
index 0000000..a752b24
--- /dev/null
+++ b/debian/patches/use-bzero-instead-of-memset_s.diff
@@ -0,0 +1,24 @@
+Subject: use bzero() instead of memset_s()
+
+lib/replace/replace.h header defines ZERO_STRUCT macro
+which uses memset_s() function (which is similar to
+memset() but can not be optimized out by the compiler).
+Glibc has bzero() with similar property, while memset_s()
+have is implemented in lib/replace/replace.c, - this way,
+some binaries needlessly link with libreplace-samba4 just
+to get rep_memset_s() symbol. By using bzero() instead,
+this endless linkage is eliminated, so we can package,
+for example, libldb (which uses ZERO_STRUCT) without it
+linking to libreplace-samba4.
+
+Note: actually using explicit_bzero() so it is not optimized
+out by the compiler - this is the original goal of using
+memset_s().
+
+diff --git a/lib/replace/replace.h b/lib/replace/replace.h
+index 8609d84322c..28db8d425a3 100644
+--- a/lib/replace/replace.h
++++ b/lib/replace/replace.h
+@@ -822 +822 @@
+-#define ZERO_STRUCT(x) memset_s((char *)&(x), sizeof(x), 0, sizeof(x))
++#define ZERO_STRUCT(x) explicit_bzero((char *)&(x), sizeof(x))