From 577b974cf21ad5d48124acde6312be2ad93eeecd Mon Sep 17 00:00:00 2001
From: "Rob Swindell (on Debian Linux)" <rob@synchro.net>
Date: Wed, 13 Dec 2023 20:16:54 -0800
Subject: [PATCH] Don't export BN_ (cryptlib BigNum functions) from libsbbs.so
Attempt to fix issue #680
This probably will need some llvm or other exceptional handling for
non GNU build systems.
---
src/sbbs3/GNUmakefile | 2 +-
src/sbbs3/sbbs.version | 4 ++++
2 files changed, 5 insertions(+), 1 deletion(-)
create mode 100644 src/sbbs3/sbbs.version
diff --git a/src/sbbs3/GNUmakefile b/src/sbbs3/GNUmakefile
index 097f0edff5..d2d63bbeb9 100644
--- a/src/sbbs3/GNUmakefile
+++ b/src/sbbs3/GNUmakefile
@@ -161,7 +161,7 @@ $(SBBSMONO): $(MONO_OBJS) $(OBJS)
# Synchronet BBS library Link Rule
$(SBBS): $(JS_DEPS) $(CRYPT_DEPS) $(OBJS) $(LIBS) $(EXTRA_SBBS_DEPENDS) $(ENCODE_LIB) $(HASH_LIB) | $(LIBODIR)
@echo Linking $@
- $(QUIET)$(MKSHPPLIB) $(LDFLAGS) -o $@ $(OBJS) $(SBBS_LIBS) $(SMBLIB_LIBS) $(LIBS) $(SHLIBOPTS) $(JS_LIBS) $(CRYPT_LIBS) $(ENCODE_LIBS) $(HASH_LIBS) $(XPDEV-MT_LIBS) $(FILE_LIBS)
+ $(QUIET)$(MKSHPPLIB) $(LDFLAGS) -o $@ $(OBJS) $(SBBS_LIBS) $(SMBLIB_LIBS) $(LIBS) $(SHLIBOPTS) $(JS_LIBS) $(CRYPT_LIBS) $(ENCODE_LIBS) $(HASH_LIBS) $(XPDEV-MT_LIBS) $(FILE_LIBS) -Wl,--version-script=sbbs.version
# FTP Server Link Rule
$(FTPSRVR): $(MTOBJODIR)/ftpsrvr.o
diff --git a/src/sbbs3/sbbs.version b/src/sbbs3/sbbs.version
new file mode 100644
index 0000000000..9527b8a067
--- /dev/null
+++ b/src/sbbs3/sbbs.version
@@ -0,0 +1,4 @@
+SBBS {
+ local: BN_*; # hide cryptlib BigNum functions, prevent collision with OpenSSL
+};
+
--
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