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/*
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Crown Copyright (c) 1997
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This TenDRA(r) Computer Program is subject to Copyright
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owned by the United Kingdom Secretary of State for Defence
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acting through the Defence Evaluation and Research Agency
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(DERA). It is made available to Recipients with a
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royalty-free licence for its use, reproduction, transfer
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to other parties and amendment for any purpose not excluding
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product development provided that any such use et cetera
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shall be deemed to be acceptance of the following conditions:-
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(1) Its Recipients shall ensure that this Notice is
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reproduced upon any copies or amended versions of it;
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(2) Any amended version of it shall be clearly marked to
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show both the nature of and the organisation responsible
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for the relevant amendment or amendments;
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(3) Its onward transfer from a recipient to another
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party shall be deemed to be that party's acceptance of
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these conditions;
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(4) DERA gives no warranty or assurance as to its
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quality or suitability for any purpose and DERA accepts
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no liability whatsoever in relation to any use to which
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it may be put.
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*/
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/**** bostream.c --- Binary output stream handling.
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*
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** Author: Steve Folkes <smf@hermes.mod.uk>
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*
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**** Commentary:
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*
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* This file implements the binary output stream facility specified in the
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* file "bostream.h". See that file for more details.
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*
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**** Change Log:
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* $Log: bostream.c,v $
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* Revision 1.1.1.1 1998/01/17 15:57:17 release
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* First version to be checked into rolling release.
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*
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* Revision 1.2 1994/12/12 11:45:21 smf
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* Performing changes for 'CR94_178.sid+tld-update' - bringing in line with
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* OSSG C Coding Standards.
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*
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* Revision 1.1.1.1 1994/07/25 16:06:14 smf
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* Initial import of os-interface shared files.
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*
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**/
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/****************************************************************************/
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#include "bostream.h"
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#include "cstring.h"
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/*--------------------------------------------------------------------------*/
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ExceptionP XX_bostream_write_error = EXCEPTION ("error writing to binary stream");
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/*--------------------------------------------------------------------------*/
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void
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bostream_init PROTO_N ((bostream))
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PROTO_T (BOStreamP bostream)
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{
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bostream->name = NIL (CStringP);
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}
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BoolT
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bostream_open PROTO_N ((bostream, name))
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PROTO_T (BOStreamP bostream X
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CStringP name)
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{
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#ifdef FS_BINARY_STDIO
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if ((bostream->file = fopen (name, "wb")) == NIL (FILE *)) {
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return (FALSE);
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}
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#else
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if ((bostream->file = fopen (name, "w")) == NIL (FILE *)) {
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return (FALSE);
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}
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#endif /* defined (FS_BINARY_STDIO) */
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bostream->name = name;
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return (TRUE);
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}
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void
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bostream_assign PROTO_N ((to, from))
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PROTO_T (BOStreamP to X
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BOStreamP from)
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{
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to->file = from->file;
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to->name = from->name;
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}
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BoolT
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bostream_is_open PROTO_N ((bostream))
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PROTO_T (BOStreamP bostream)
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{
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return (bostream->name != NIL (CStringP));
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}
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void
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bostream_write_chars PROTO_N ((bostream, length, chars))
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PROTO_T (BOStreamP bostream X
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unsigned length X
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CStringP chars)
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{
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unsigned bytes_read = (unsigned) fwrite ((GenericP) chars, sizeof (char),
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(SizeT) length, bostream->file);
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if ((bytes_read != length) && (ferror (bostream->file))) {
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CStringP name = cstring_duplicate (bostream->name);
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THROW_VALUE (XX_bostream_write_error, name);
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UNREACHED;
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}
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}
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void
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bostream_write_bytes PROTO_N ((bostream, length, bytes))
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PROTO_T (BOStreamP bostream X
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unsigned length X
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ByteP bytes)
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{
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unsigned bytes_read = (unsigned) fwrite ((GenericP) bytes, sizeof (ByteT),
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(SizeT) length, bostream->file);
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if ((bytes_read != length) && (ferror (bostream->file))) {
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CStringP name = cstring_duplicate (bostream->name);
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THROW_VALUE (XX_bostream_write_error, name);
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UNREACHED;
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}
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}
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void
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bostream_write_byte PROTO_N ((bostream, byte))
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PROTO_T (BOStreamP bostream X
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ByteT byte)
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{
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if ((fputc ((int) byte, bostream->file) == EOF) &&
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(ferror (bostream->file))) {
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CStringP name = cstring_duplicate (bostream->name);
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THROW_VALUE (XX_bostream_write_error, name);
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UNREACHED;
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}
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}
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CStringP
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bostream_name PROTO_N ((bostream))
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PROTO_T (BOStreamP bostream)
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{
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return (bostream->name);
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}
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void
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bostream_close PROTO_N ((bostream))
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PROTO_T (BOStreamP bostream)
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{
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if (fclose (bostream->file)) {
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CStringP name = cstring_duplicate (bostream->name);
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THROW_VALUE (XX_bostream_write_error, name);
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UNREACHED;
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}
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bostream_init (bostream);
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}
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