Build against OpenSSL 1.1 on RHEL 7 (for TLSv1.3 support)

dsniff-2.4-fedora_dirs.patch

@@ -18,7 +18,7 @@ various paths for the Fedora directory structure.
  
 -INCS	= -I. $(NIDSINC) $(PCAPINC) $(LNETINC) $(DBINC) $(SSLINC) $(X11INC) \
 -	  -I$(srcdir)/missing
-+INCS	= -I. $(X11INC) -I$(srcdir)/missing 
++INCS	= -I. $(X11INC) $(SSLINC) -I$(srcdir)/missing 
  LIBS	= @LIBS@ -L$(srcdir) -lmissing
  
  INSTALL	= @INSTALL@

dsniff.spec

@@ -41,7 +41,11 @@ Patch32:	dsniff-2.4-smp_mflags.patch
 Patch33:	dsniff-2.4-libtirpc.patch
 BuildRequires:	gcc
 BuildRequires:	libnet-devel
+%if 0%{?fedora} || 0%{?rhel} >= 8
 BuildRequires:	openssl-devel
+%else
+BuildRequires:	openssl11-devel
+%endif
 BuildRequires:	libnids-devel
 BuildRequires:	glib2-devel
 BuildRequires:	libpcap-devel
@@ -106,6 +110,14 @@ by exploiting weak bindings in ad-hoc PKI.
 %endif
 
 %build
+%if 0%{?rhel} == 7
+sed \
+  -e 's|include/openssl/|include/openssl11/openssl/|g' \
+  -e 's|\(SSLINC="\)-I${prefix}/include|\1$(pkg-config --cflags openssl11)|g' \
+  -e 's|\(SSLLIB="\)-L${prefix}/lib -lssl -lcrypto|\1$(pkg-config --libs openssl11)|g' \
+  -i configure
+%endif
+
 %configure
 %make_build