Build dynamic rsaref engine on VMS. Tested on VAX so far.

demos/engines/rsaref/build.com

@@ -0,0 +1,85 @@
+$! BUILD.COM -- Building procedure for the RSAref engine
+$
+$	if f$search("source.dir") .eqs. "" -
+	   .or. f$search("install.dir") .eqs. ""
+$	then
+$	    write sys$error "RSAref 2.0 hasn't been properly extracted."
+$	    exit
+$	endif
+$
+$	_save_default = f$environment("default")
+$	set default [.install]
+$	files := desc,digit,md2c,md5c,nn,prime,-
+		rsa,r_encode,r_dh,r_enhanc,r_keygen,r_random,-
+		r_stdlib
+$	delete rsaref.olb;*
+$	library/create/object rsaref.olb
+$	files_i = 0
+$ rsaref_loop:
+$	files_e = f$edit(f$element(files_i,",",files),"trim")
+$	files_i = files_i + 1
+$	if files_e .eqs. "," then goto rsaref_loop_end
+$	cc/include=([-.source],[])/define=PROTOTYPES=1/object=[]'files_e'.obj -
+		[-.source]'files_e'.c
+$	library/replace/object rsaref.olb 'files_e'.obj
+$	goto rsaref_loop
+$ rsaref_loop_end:
+$
+$	set default [-]
+$	define/user openssl [---.include.openssl]
+$	cc/define=ENGINE_DYNAMIC_SUPPORT rsaref.c
+$
+$	if f$getsyi("CPU") .ge. 128
+$	then
+$	    link/share=librsaref.exe sys$input:/option
+[]rsaref.obj
+[.install]rsaref.olb/lib
+[---.axp.exe.crypto]libcrypto.olb/lib
+symbol_vector=(bind_engine=procedure,v_check=procedure)
+$	else
+$	    macro/object=rsaref_vec.obj sys$input:
+;
+; Transfer vector for VAX shareable image
+;
+	.TITLE librsaref
+;
+; Define macro to assist in building transfer vector entries.  Each entry
+; should take no more than 8 bytes.
+;
+	.MACRO FTRANSFER_ENTRY routine
+	.ALIGN QUAD
+	.TRANSFER routine
+	.MASK	routine
+	JMP	routine+2
+	.ENDM FTRANSFER_ENTRY
+;
+; Place entries in own program section.
+;
+	.PSECT $$LIBRSAREF,QUAD,PIC,USR,CON,REL,LCL,SHR,EXE,RD,NOWRT
+
+LIBRSAREF_xfer:
+	FTRANSFER_ENTRY bind_engine
+	FTRANSFER_ENTRY v_check
+
+;
+; Allocate extra storage at end of vector to allow for expansion.
+;
+	.BLKB 512-<.-LIBRSAREF_xfer>	; 1 page.
+	.END
+$	    link/share=librsaref.exe sys$input:/option
+!
+! Ensure transfer vector is at beginning of image
+!
+CLUSTER=FIRST
+COLLECT=FIRST,$$LIBRSAREF
+!
+! make psects nonshareable so image can be installed.
+!
+PSECT_ATTR=$CHAR_STRING_CONSTANTS,NOWRT
+[]rsaref_vec.obj
+[]rsaref.obj
+[.install]rsaref.olb/lib
+[---.vax.exe.crypto]libcrypto.olb/lib
+$	endif
+$
+$	set default '_save_default'