バイナリ・ファイルと16進数(16進数)テキスト・ファイルの相互転送ツール

/* 
 *       、    。
 *       (            )       。
 *        、     。
 *          、         (            )，         。
 * =====================
 *   :    
 *   : [email protected]
 */


#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 


#define ErrQuit(fmt, args...) \
    do \
    { \
        printf("ErrQuit:%s(%d)-%s:
"fmt"
:%s
", __FILE__,__LINE__,__FUNCTION__,##args, strerror(errno)); \
        exit(1);\
    } while (0)




void bin2text(FILE *fd_s, FILE *fd_d)
{
    unsigned char file_data_s[1024];
    char file_data_d[sizeof(file_data_s)*3];
    int i, read_len, write_len;




    while ((read_len=fread(file_data_s, 1, sizeof(file_data_s), fd_s))>0)
    {
        for (i = 0; i < read_len; i++)
        {
            sprintf(file_data_d + i*3, "%02hhx ", file_data_s[i]);
        }
        write_len=fwrite(file_data_d, 1, read_len*3, fd_d);
        if (write_len<0)
            ErrQuit("write dest file failed");
    }




    if (read_len<0)
        ErrQuit("read src file failed");




}




void text2bin(FILE *fd_s, FILE *fd_d)
{
    char file_data_s[1024*3];
    char file_data_d[1024];
    int i, read_len, write_len;
int cnt=0, write_cnt=0;


    while ((read_len=fread(file_data_s, 1, sizeof(file_data_s), fd_s))>0)
    {
cnt+=read_len;


assert((read_len%3)==0);
        for (i = 0; i < read_len; i+=3)
        {
            file_data_s[i+2] = 0;
            file_data_d[i/3]=strtol(file_data_s + i, NULL, 16);
        }
        write_len=fwrite(file_data_d, 1, read_len/3, fd_d);
        if (write_len!=read_len/3)
            ErrQuit("write dest file failed");
write_cnt+=read_len/3;
    }




    if (read_len<0)
        ErrQuit("read src file failed");


printf("cnt=%d; write_cnt=%d", cnt, write_cnt);
}




char *src_file;
char *output_file;
char *trans_type;




void parse_args(int argc, char *argv[])
{
   int opt;
    while ((opt = getopt(argc, argv, "O:o:S:s:t:T:")) != -1)
    {
       switch (opt)
       {
              




           case 's':
           case 'S':
               src_file = optarg;
               break;




           case 'o':    
           case 'O':   
               output_file = optarg;
               break;




           case 't':    
           case 'T':  
               trans_type = optarg;
               break;












           default: /* '?' */
               printf("Usage: %s  
",
                       argv[0]);
       }
    }




}




int main(int argc, char *argv[])
{
    FILE *fd_s, *fd_d;
    parse_args(argc, argv);
    fd_s = fopen(src_file, "rb");
    if (fd_s==NULL)
        ErrQuit("open src file failed");
    fd_d = fopen(output_file, "wb");
    if (fd_d==NULL)
        ErrQuit("open dest file failed");




    if (memcmp(trans_type,"b2t", 3)==0)
        bin2text(fd_s, fd_d);
    else
        text2bin(fd_s, fd_d);


    fclose(fd_s);
    fclose(fd_d);
    return 0;
}