cpukit/libtest/gcovdumpinfobase64.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSImplGcov
0007  *
0008  * @brief This source file contains the implementation of
0009  *   _Gcov_Dump_info_base64().
0010  */
0011
0012 /*
0013  * Copyright (C) 2021, 2022 embedded brains GmbH & Co. KG
0014  *
0015  * Redistribution and use in source and binary forms, with or without
0016  * modification, are permitted provided that the following conditions
0017  * are met:
0018  * 1. Redistributions of source code must retain the above copyright
0019  *    notice, this list of conditions and the following disclaimer.
0020  * 2. Redistributions in binary form must reproduce the above copyright
0021  *    notice, this list of conditions and the following disclaimer in the
0022  *    documentation and/or other materials provided with the distribution.
0023  *
0024  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0025  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0026  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0027  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0028  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0029  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0030  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0031  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0032  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0033  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0034  * POSSIBILITY OF SUCH DAMAGE.
0035  */
0036
0037 #ifdef HAVE_CONFIG_H
0038 #include "config.h"
0039 #endif
0040
0041 #include <rtems/test-gcov.h>
0042
0043 #include <limits.h>
0044 #include <string.h>
0045
0046 #include <rtems/base64.h>
0047
0048 typedef struct {
0049   IO_Put_char put_char;
0050   void       *arg;
0051   int         out;
0052   size_t      index;
0053   char        buf[ 57 ];
0054 } Gcov_Base64_context;
0055
0056 static void _Gcov_Base64_put_char( int c, void *arg )
0057 {
0058   Gcov_Base64_context *ctx;
0059
0060   ctx = arg;
0061
0062   ( *ctx->put_char )( c, ctx->arg );
0063   ++ctx->out;
0064
0065   if ( ctx->out >= 76 ) {
0066     ctx->out = 0;
0067     ( *ctx->put_char )( '\n', ctx->arg );
0068   }
0069 }
0070
0071 static void _Gcov_Base64_encode( int c, void *arg )
0072 {
0073   Gcov_Base64_context *ctx;
0074   size_t                  index;
0075
0076   ctx = arg;
0077   index = ctx->index;
0078   ctx->buf[ index ] = (char) c;
0079
0080   if ( index == RTEMS_ARRAY_SIZE( ctx->buf ) - 1 ) {
0081     index = 0;
0082     _Base64_Encode(
0083       _Gcov_Base64_put_char,
0084       ctx,
0085       ctx->buf,
0086       sizeof( ctx->buf ),
0087       NULL,
0088       INT_MAX
0089     );
0090   } else {
0091     ++index;
0092   }
0093
0094   ctx->index = index;
0095 }
0096
0097 void _Gcov_Dump_info_base64( IO_Put_char put_char, void *arg )
0098 {
0099   Gcov_Base64_context ctx;
0100
0101   memset( &ctx, 0, sizeof( ctx ) );
0102   ctx.put_char = put_char;
0103   ctx.arg = arg;
0104   _Gcov_Dump_info( _Gcov_Base64_encode, &ctx );
0105
0106   if ( ctx.index > 0 ) {
0107     _Base64_Encode( put_char, arg, ctx.buf, ctx.index, NULL, INT_MAX );
0108     ( *put_char )( '\n', arg );
0109   }
0110 }