tests/suites/main_test.function

SUITE_PRE_DEP
#define TEST_SUITE_ACTIVE

int verify_string( char **str )
{
    if( (*str)[0] != '"' ||
        (*str)[strlen( *str ) - 1] != '"' )
    {
        mbedtls_printf( "Expected string (with \"\") for parameter and got: %s\n", *str );
        return( -1 );
    }

    (*str)++;
    (*str)[strlen( *str ) - 1] = '\0';

    return( 0 );
}

int verify_int( char *str, int *value )
{
    size_t i;
    int minus = 0;
    int digits = 1;
    int hex = 0;

    for( i = 0; i < strlen( str ); i++ )
    {
        if( i == 0 && str[i] == '-' )
        {
            minus = 1;
            continue;
        }

        if( ( ( minus && i == 2 ) || ( !minus && i == 1 ) ) &&
            str[i - 1] == '0' && str[i] == 'x' )
        {
            hex = 1;
            continue;
        }

        if( ! ( ( str[i] >= '0' && str[i] <= '9' ) ||
                ( hex && ( ( str[i] >= 'a' && str[i] <= 'f' ) ||
                           ( str[i] >= 'A' && str[i] <= 'F' ) ) ) ) )
        {
            digits = 0;
            break;
        }
    }

    if( digits )
    {
        if( hex )
            *value = strtol( str, NULL, 16 );
        else
            *value = strtol( str, NULL, 10 );

        return( 0 );
    }

MAPPING_CODE

    mbedtls_printf( "Expected integer for parameter and got: %s\n", str );
    return( KEY_VALUE_MAPPING_NOT_FOUND );
}


/*----------------------------------------------------------------------------*/
/* Test Case code */

FUNCTION_CODE
SUITE_POST_DEP


/*----------------------------------------------------------------------------*/
/* Test dispatch code */

int dep_check( char *str )
{
    if( str == NULL )
        return( 1 );

DEP_CHECK_CODE

    return( DEPENDENCY_NOT_SUPPORTED );
}

int dispatch_test(int cnt, char *params[50])
{
    int ret;
    ((void) cnt);
    ((void) params);

#if defined(TEST_SUITE_ACTIVE)
    ret = DISPATCH_TEST_SUCCESS;

DISPATCH_FUNCTION
    {
        mbedtls_fprintf( stdout,
                         "FAILED\nSkipping unknown test function '%s'\n",
                         params[0] );
        fflush( stdout );
        ret = DISPATCH_TEST_FN_NOT_FOUND;
    }
#else
    ret = DISPATCH_UNSUPPORTED_SUITE;
#endif
    return( ret );
}


/*----------------------------------------------------------------------------*/
/* Main Test code */

#define USAGE \
    "Usage: %s [OPTIONS] files...\n\n" \
    "   Command line arguments:\n" \
    "     files...          One or more test data file. If no file is specified\n" \
    "                       the followimg default test case is used:\n" \
    "                           %s\n\n" \
    "   Options:\n" \
    "     -v | --verbose    Display full information about each test\n" \
    "     -h | --help       Display this information\n\n", \
    argv[0], \
    "TEST_FILENAME"


int get_line( FILE *f, char *buf, size_t len )
{
    char *ret;

    ret = fgets( buf, len, f );
    if( ret == NULL )
        return( -1 );

    if( strlen( buf ) && buf[strlen(buf) - 1] == '\n' )
        buf[strlen(buf) - 1] = '\0';
    if( strlen( buf ) && buf[strlen(buf) - 1] == '\r' )
        buf[strlen(buf) - 1] = '\0';

    return( 0 );
}

int parse_arguments( char *buf, size_t len, char *params[50] )
{
    int cnt = 0, i;
    char *cur = buf;
    char *p = buf, *q;

    params[cnt++] = cur;

    while( *p != '\0' && p < buf + len )
    {
        if( *p == '\\' )
        {
            p++;
            p++;
            continue;
        }
        if( *p == ':' )
        {
            if( p + 1 < buf + len )
            {
                cur = p + 1;
                params[cnt++] = cur;
            }
            *p = '\0';
        }

        p++;
    }

    /* Replace newlines, question marks and colons in strings */
    for( i = 0; i < cnt; i++ )
    {
        p = params[i];
        q = params[i];

        while( *p != '\0' )
        {
            if( *p == '\\' && *(p + 1) == 'n' )
            {
                p += 2;
                *(q++) = '\n';
            }
            else if( *p == '\\' && *(p + 1) == ':' )
            {
                p += 2;
                *(q++) = ':';
            }
            else if( *p == '\\' && *(p + 1) == '?' )
            {
                p += 2;
                *(q++) = '?';
            }
            else
                *(q++) = *(p++);
        }
        *q = '\0';
    }

    return( cnt );
}

static int test_snprintf( size_t n, const char ref_buf[10], int ref_ret )
{
    int ret;
    char buf[10] = "xxxxxxxxx";
    const char ref[10] = "xxxxxxxxx";

    ret = mbedtls_snprintf( buf, n, "%s", "123" );
    if( ret < 0 || (size_t) ret >= n )
        ret = -1;

    if( strncmp( ref_buf, buf, sizeof( buf ) ) != 0 ||
        ref_ret != ret ||
        memcmp( buf + n, ref + n, sizeof( buf ) - n ) != 0 )
    {
        return( 1 );
    }

    return( 0 );
}

static int run_test_snprintf( void )
{
    return( test_snprintf( 0, "xxxxxxxxx",  -1 ) != 0 ||
            test_snprintf( 1, "",           -1 ) != 0 ||
            test_snprintf( 2, "1",          -1 ) != 0 ||
            test_snprintf( 3, "12",         -1 ) != 0 ||
            test_snprintf( 4, "123",         3 ) != 0 ||
            test_snprintf( 5, "123",         3 ) != 0 );
}

int main(int argc, const char *argv[])
{
    /* Local Configurations and options */
    const char *default_filename = "TEST_FILENAME";
    const char *test_filename = NULL;
    const char **test_files = NULL;
    int testfile_count = 0;
    int option_verbose = 0;

    /* Other Local variables */
    int arg_index = 1;
    const char *next_arg;
    int testfile_index, ret, i, cnt;
    int total_errors = 0, total_tests = 0, total_skipped = 0;
    FILE *file;
    char buf[5000];
    char *params[50];
    void *pointer;

#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) && \
    !defined(TEST_SUITE_MEMORY_BUFFER_ALLOC)
    unsigned char alloc_buf[1000000];
    mbedtls_memory_buffer_alloc_init( alloc_buf, sizeof(alloc_buf) );
#endif

    /*
     * The C standard doesn't guarantee that all-bits-0 is the representation
     * of a NULL pointer. We do however use that in our code for initializing
     * structures, which should work on every modern platform. Let's be sure.
     */
    memset( &pointer, 0, sizeof( void * ) );
    if( pointer != NULL )
    {
        mbedtls_fprintf( stderr, "all-bits-zero is not a NULL pointer\n" );
        return( 1 );
    }

    /*
     * Make sure we have a snprintf that correctly zero-terminates
     */
    if( run_test_snprintf() != 0 )
    {
        mbedtls_fprintf( stderr, "the snprintf implementation is broken\n" );
        return( 0 );
    }

    while( arg_index < argc)
    {
        next_arg = argv[ arg_index ];

        if( strcmp(next_arg, "--verbose" ) == 0 ||
                 strcmp(next_arg, "-v" ) == 0 )
        {
            option_verbose = 1;
        }
        else if( strcmp(next_arg, "--help" ) == 0 ||
                 strcmp(next_arg, "-h" ) == 0 )
        {
            mbedtls_fprintf( stdout, USAGE );
            mbedtls_exit( EXIT_SUCCESS );
        }
        else
        {
            /* Not an option, therefore treat all further arguments as the file
             * list.
             */
            test_files = &argv[ arg_index ];
            testfile_count = argc - arg_index;
        }

        arg_index++;
    }

    /* If no files were specified, assume a default */
    if ( test_files == NULL || testfile_count == 0 )
    {
        test_files = &default_filename;
        testfile_count = 1;
    }

    /* Now begin to execute the tests in the testfiles */
    for ( testfile_index = 0;
          testfile_index < testfile_count;
          testfile_index++ )
    {
        test_filename = test_files[ testfile_index ];

        file = fopen( test_filename, "r" );
        if( file == NULL )
        {
            mbedtls_fprintf( stderr, "Failed to open test file: %s\n",
                             test_filename );
            return( 1 );
        }

        while( !feof( file ) )
        {
            int unmet_dep_count = 0;
            char *unmet_dependencies[20];

            if( ( ret = get_line( file, buf, sizeof(buf) ) ) != 0 )
                break;
            mbedtls_fprintf( stdout, "%s%.66s", test_errors ? "\n" : "", buf );
            mbedtls_fprintf( stdout, " " );
            for( i = strlen( buf ) + 1; i < 67; i++ )
                mbedtls_fprintf( stdout, "." );
            mbedtls_fprintf( stdout, " " );
            fflush( stdout );

            total_tests++;

            if( ( ret = get_line( file, buf, sizeof(buf) ) ) != 0 )
                break;
            cnt = parse_arguments( buf, strlen(buf), params );

            if( strcmp( params[0], "depends_on" ) == 0 )
            {
                for( i = 1; i < cnt; i++ )
                {
                    if( dep_check( params[i] ) != DEPENDENCY_SUPPORTED )
                    {
                        unmet_dependencies[ i-1 ] = strdup(params[i]);
                        if(  unmet_dependencies[ i-1 ] == NULL )
                        {
                            mbedtls_printf("FATAL: Out of memory\n");
                            mbedtls_exit( MBEDTLS_PLATFORM_STD_EXIT_FAILURE );
                        }
                        unmet_dep_count++;
                    }
                }

                if( ( ret = get_line( file, buf, sizeof(buf) ) ) != 0 )
                    break;
                cnt = parse_arguments( buf, strlen(buf), params );
            }
 
            // If there are no unmet dependencies execute the test
            if( unmet_dep_count == 0 )
            {
                test_errors = 0;
                ret = dispatch_test( cnt, params );
            }

            if( unmet_dep_count > 0 || ret == DISPATCH_UNSUPPORTED_SUITE )
            {
                total_skipped++;
                mbedtls_fprintf( stdout, "----\n" );

                if( 1 == option_verbose && ret == DISPATCH_UNSUPPORTED_SUITE )
                {
                    mbedtls_fprintf( stdout, "   Test Suite not enabled" );
                }

                if( 1 == option_verbose && unmet_dep_count > 0 )
                {
                    mbedtls_fprintf( stdout, "   Unmet dependencies: " );
                    while( unmet_dep_count > 0)
                    {
                        mbedtls_fprintf(stdout, "%s  ",
                                        unmet_dependencies[unmet_dep_count - 1]);
                        free(unmet_dependencies[unmet_dep_count - 1]);
                        unmet_dep_count--;
                    }
                    mbedtls_fprintf( stdout, "\n" );
                }
                fflush( stdout );
            }
            else if( ret == DISPATCH_TEST_SUCCESS && test_errors == 0 )
            {
                mbedtls_fprintf( stdout, "PASS\n" );
                fflush( stdout );
            }
            else if( ret == DISPATCH_INVALID_TEST_DATA )
            {
                mbedtls_fprintf( stderr, "FAILED: FATAL PARSE ERROR\n" );
                fclose(file);
                mbedtls_exit( 2 );
            }
            else
                total_errors++;

            if( ( ret = get_line( file, buf, sizeof(buf) ) ) != 0 )
                break;
            if( strlen(buf) != 0 )
            {
                mbedtls_fprintf( stderr, "Should be empty %d\n",
                                 (int) strlen(buf) );
                return( 1 );
            }
        }
        fclose(file);
    }

    mbedtls_fprintf( stdout, "\n----------------------------------------------------------------------------\n\n");
    if( total_errors == 0 )
        mbedtls_fprintf( stdout, "PASSED" );
    else
        mbedtls_fprintf( stdout, "FAILED" );

    mbedtls_fprintf( stdout, " (%d / %d tests (%d skipped))\n",
             total_tests - total_errors, total_tests, total_skipped );

#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) && \
    !defined(TEST_SUITE_MEMORY_BUFFER_ALLOC)
#if defined(MBEDTLS_MEMORY_DEBUG)
    mbedtls_memory_buffer_alloc_status();
#endif
    mbedtls_memory_buffer_alloc_free();
#endif

    return( total_errors != 0 );
}