source: mainline/uspace/app/filecrc/filecrc.c@ a1467102

/** @addtogroup filecheck
 * @{
 */

/**
 * @file        filecrc.c
 * @brief       Tool for calculating CRC32 checksum for a file(s)
 *
 */



#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <fcntl.h>
#include "crc32.h"

#define NAME    "filecrc"
#define VERSION "0.0.2"

static void print_help(void);


int main(int argc, char **argv) {

        if (argc < 2) {
                print_help();
                return 0;
        }
        
        int i;
        for (i = 1; argv[i] != NULL && i < argc; i++) {
                uint32_t hash = 0;              
                int fd = open(argv[i], O_RDONLY);
                if (fd < 0) {
                        printf("Unable to open %s\n", argv[i]);
                        continue;
                }
                
                if (crc32(fd, &hash) == 0) {
                        printf("%s : %x\n", argv[i], hash);
                }
                
                close(fd);
        }

        return 0;
}


/* Displays help for filecrc */
static void print_help(void)
{
        printf(
           "Usage:  %s <file1> [file2] [...]\n",
           NAME);
}


/**
 * @}
 */