Change certs_test sizeof const to define for Watcom

[gojimmypi]

Description

Updates gencertbuf.pl to generate #define sizeof_... instead of static const int sizeof_...

For example:

#define sizeof_client_key_der_1024 (sizeof(client_key_der_1024))

Instead of

static const int sizeof_client_key_der_1024 = sizeof(client_key_der_1024);

Since C89/C90 (which Watcom generally defaults to), sizeof must be a compile-time constant expression when used in a static initializer.

Otherwise Watcom will fail to compile:

@echo off

set WATCOM=C:\watcom
set PATH=%WATCOM%\binnt;%WATCOM%\binw;%PATH%
set INCLUDE=%WATCOM%\h;%WATCOM%\h\nt
set EDPATH=%WATCOM%\eddat
set WIPFC=%WATCOM%\wipfc
set LIB=%WATCOM%\lib386;%WATCOM%\lib386\nt

echo ""
echo "Config #2a"
rmdir /s /q .\build-watcom
cmake -B build-watcom -G "Watcom WMake" ^
  -DWOLFSSL_DEBUG_CERTS=YES ^
  -DCMAKE_SYSTEM_NAME=Windows ^
  -DCMAKE_SYSTEM_PROCESSOR=x86 ^
  -DCMAKE_VERBOSE_MAKEFILE=TRUE ^
  -DWOLFSSL_ASM=NO ^
  -DWOLFSSL_EXAMPLES=YES ^
  -DWOLFSSL_CRYPT_TESTS=NO ^
  -DWOLFSSL_SINGLE_THREADED=YES ^
  -DBUILD_SHARED_LIBS=NO ^
  -DCMAKE_POLICY_DEFAULT_CMP0136=NEW ^
  -DCMAKE_WATCOM_RUNTIME_LIBRARY=SingleThreaded
if errorlevel 1 (
    echo "Config 2a failed!"
    exit /b
)
cmake --build build-watcom || (echo "Build 2a failed!" && exit /b)

Fails with this error:

wcc386 C:\workspace\wolfssl-pr-cert\tests\api\test_pkcs12.c  -d+ -DECC_SHAMIR -DECC_TIMING_RESISTANT -DGCM_TABLE_4BIT -DHAVE_AESGCM -DHAVE_CHACHA -DHAVE_CONFIG_H -DHAVE_DH_DEFAULT_PARAMS -DHAVE_ECC -DHAVE_ENCRYPT_THEN_MAC -DHAVE_EXTENDED_MASTER -DHAVE_FFDHE_2048 -DHAVE_HASHDRBG -DHAVE_HKDF -DHAVE_ONE_TIME_AUTH -DHAVE_POLY1305 -DHAVE_SNI -DHAVE_SUPPORTED_CURVES -DHAVE_THREAD_LS -DHAVE_TLS_EXTENSIONS -DNO_CHACHA_ASM -DNO_DES3 -DNO_DES3_TLS_SUITES -DNO_DSA -DNO_MD4 -DNO_MD5 -DNO_OLD_TLS -DNO_PSK -DNO_RC4 -DSINGLE_THREADED -DTFM_ECC256 -DTFM_NO_ASM -DTFM_TIMING_RESISTANT -DWC_NO_ASYNC_THREADING -DWC_RSA_BLINDING -DWC_RSA_PSS -DWOLFSSL_HAVE_MIN -DWOLFSSL_HAVE_MAX -DNO_WRITEV -DWOLFSSL_IGNORE_FILE_WARN -DWOLFSSL_NO_ASM -DWOLFSSL_NO_SHAKE128 -DWOLFSSL_NO_SHAKE256 -DWOLFSSL_PSS_LONG_SALT -DWOLFSSL_SHA384 -DWOLFSSL_SHA512 -DWOLFSSL_SYS_CA_CERTS -DWOLFSSL_TLS13 -DWOLFSSL_USE_ALIGN -I"C:\workspace\wolfssl-pr-cert\build-watcom" -I"C:\workspace\wolfssl-pr-cert" -I"C:\watcom\h" -I"C:\watcom\h\nt" -w3 -bt=nt -dWIN32 -wx -wcd=202 -d2 -DNO_MAIN_DRIVER -foCMakeFiles\unit_test.dir\tests\api\test_pkcs12.c.obj
Open Watcom C x86 32-bit Optimizing Compiler
Version 2.0 beta Jul 11 2025 02:49:30 (32-bit)
Copyright (c) 2002-2025 The Open Watcom Contributors. All Rights Reserved.
Portions Copyright (c) 1984-2002 Sybase, Inc. All Rights Reserved.
Source code is available under the Sybase Open Watcom Public License.
See https://github.com/open-watcom/open-watcom-v2#readme for details.
C:\workspace\wolfssl-pr-cert\tests\api\test_pkcs12.c(109): Error! E1054: Expression must be constant
C:\workspace\wolfssl-pr-cert\tests\api\test_pkcs12.c: 197 lines, included 252837, 0 warnings, 1 errors
Error: Unable to invoke "C:\watcom\binnt\wcc386.exe"

Due to this initialization syntax:

    WC_DerCertList inCa = {
        (byte*)ca_cert_der_2048, sizeof_ca_cert_der_2048, NULL
    };

Fixes zd# n/a

Testing

How did you test?

Considered some sort of GitHub workflow, but it would been to be a source-code-scanning exercise, not a Watcom-compiling check.

Manually tested with Watcom.

Also basic test with:

./gencertbuf.pl
./autogen.sh
./configure --enable-all
make distclean
make
make test

Checklist

• added tests
• updated/added doxygen
• updated appropriate READMEs
• Updated manual and documentation