HelenOS sources

root/uspace/app/testwrit/testwrit.c

DEFINITIONS

1. main

/*
 * Copyright (c) 2011 Frantisek Princ
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup testwrit
 * @{
 */

#include <stdio.h>
#include <stddef.h>
#include <str.h>

#define BUF_SIZE  1024

int main(int argc, char *argv[])
{
        char buffer[BUF_SIZE];
        uint64_t iterations, i;
        FILE *file;
        char *file_name;

        /* Prepare some example data */
        memset(buffer, 0xcafebabe, BUF_SIZE);

        if (argc != 3) {
                printf("syntax: testwrit <iterations> <target file>\n");
                return 1;
        }

        char *end;
        iterations = strtoul(argv[1], &end, 10);
        file_name = argv[2];

        /* Open target file */
        file = fopen(file_name, "a");
        if (file == NULL) {
                printf("Failed opening file\n");
                return 1;
        }

        /* Writing loop */
        for (i = 0; i < iterations; ++i) {
                fwrite(buffer, 1, BUF_SIZE, file);
        }

        fclose(file);

        return 0;
}

/**
 * @}
 */