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ASN1C(1)			ASN.1 Compiler			      ASN1C(1)


       asn1c - ASN.1 Compiler


       asn1c [-E [-F] | -P | -R]
	     [-Sdir] [-X]
	     [-Wdebug-...] [-foption] [-gen-option] [-print-option]


       asn1c  compiles	ASN.1  specifications  into  a	set of target language
       (C/C++) encoders and decoders for BER,  DER,  XER  and  other  encoding


       Overall Options
	      -E -F -P -R -S directory -X

       Warning Options
	      -Werror -Wdebug-lexer -Wdebug-fixer -Wdebug-compiler

       Language Options
	      -fall-defs-global   -fbless-SIZE	 -fcompound-names  -findirect-
	      choice   -fknown-extern-type=<name>   -fnative-types   -fno-con-
	      straints -fno-include-deps -funnamed-unions -fskeletons-copy

       Codecs Generation Options

       Output Options
	      -print-constraints -print-lines


       -E     Stop  after  the parsing stage and print the reconstructed ASN.1
	      specification code to the standard output.

       -F     Used together with -E, instructs the compiler to stop after  the
	      ASN.1  syntax tree fixing stage and dump the reconstructed ASN.1
	      specification to the standard output.

       -P     Dump the compiled output to the standard output instead of  cre-
	      ating the target language files on disk.

       -R     Restrict	the  compiler to generate only the ASN.1 tables, omit-
	      ting the usual support code.

       -S directory
	      Use the specified directory with ASN.1 skeleton files.

       -X     Generate an XML DTD schema for the specified ASN.1 files.


	      Treat warnings as errors; abort if any warning is produced.

	      Enable lexer debugging during the ASN.1 parsing stage.

	      Enable ASN.1 syntax  tree  fixer	debugging  during  the	fixing

	      Enable debugging during the actual compile time.


	      Normally	the  compiler  hides the definitions (asn1_DEF_xxx) of
	      the inner structure elements (members of SEQUENCE, SET and other
	      types).  This  option  makes all such definitions global.  Using
	      this  option  may  pollute  the  namespace  by  making  lots  of
	      asn1_DEF_xxx  structures globally visible, but will allow you to
	      manipulate (encode and decode) the  individual  members  of  any
	      complex ASN.1 structure.

	      Allow SIZE() constraint for INTEGER, ENUMERATED, and other types
	      for which this constraint is normally prohibited	by  the  stan-
	      dard.  This  is  a violation of ASN.1 standard, and the compiler
	      may fail to produce a meaningful code.

	      Using this option prevents name collisions in the target	source
	      code  by	using  complex	names  for target language structures.
	      (Name collisions may occur if the ASN.1 module reuses  the  same
	      identifiers in multiple contexts).

	      When  generating code for a CHOICE type, compile the CHOICE mem-
	      bers as indirect pointers instead of declaring them inline. Con-
	      sider  using this option together with -fno-include-deps to pre-
	      vent circular references.

	      Pretend the specified type is known. The	compiler  will	assume
	      the  target  language  source files for the given type have been
	      provided manually.

	      Use the native machine's data types (int, double) whenever  pos-
	      sible,  instead  of  the	compound  INTEGER_t,  ENUMERATED_t and
	      REAL_t types.

	      Do not generate ASN.1 subtype constraint checking code. This may
	      make a shorter executable.

	      Do  not  generate  courtesy #include lines for non-critical type
	      dependencies.  Helps prevent namespace collisions.

	      Enable unnamed unions in the definitions	of  target  language's

	      Copy support files (skeletons) rather than symlink them.


	      Generate Packed Encoding Rules (PER) support code.


	      When  -EF are also specified, this option forces the compiler to
	      explain its internal understanding of subtype constraints.

	      Generate "-- #line" comments in -E output.


       unber(1), enber(1)


       Lev Walkin <vlm@lionet.info>

ASN.1 Compiler							      ASN1C(1)