gistfile1.txt

int
mmc_raw_copy (const MmcPartition *partition, char *in_file) {
    int ch;
    FILE *in;
    FILE *out;
    int val = 0;
    char buf[512];
    unsigned sz = 0;
    unsigned i;
    int ret = -1;
    char *out_file = partition->device_index;

    in  = fopen ( in_file,  "r" );
    if (in == NULL)
        goto ERROR3;

    out = fopen ( out_file,  "w" );
    if (out == NULL)
        goto ERROR2;

    fseek(in, 0L, SEEK_END);
    sz = ftell(in);
    fseek(in, 0L, SEEK_SET);

    if (sz % 512)
    {
        while ( ( ch = fgetc ( in ) ) != EOF )
            fputc ( ch, out );
    }
    else
    {
        for (i=0; i< (sz/512); i++)
        {
            if ((fread(buf, 512, 1, in)) != 1)
                goto ERROR1;
            if ((fwrite(buf, 512, 1, out)) != 1)
                goto ERROR1;
        }
    }

    fsync(out);
    ret = 0;
ERROR1:
    fclose ( out );
ERROR2:
    fclose ( in );
ERROR3:
    return ret;

}


int
mmc_raw_dump (const MmcPartition *partition, char *out_file) {
    int ch;
    FILE *in;
    FILE *out;
    int val = 0;
    char buf[512];
    unsigned sz = 0;
    unsigned i;
    int ret = -1;
    char *in_file = partition->device_index;

    in  = fopen ( in_file,  "r" );
    if (in == NULL)
        goto ERROR3;

    out = fopen ( out_file,  "w" );
    if (out == NULL)
        goto ERROR2;

    fseek(in, 0L, SEEK_END);
    sz = ftell(in);
    fseek(in, 0L, SEEK_SET);

    if (sz % 512)
    {
        while ( ( ch = fgetc ( in ) ) != EOF )
            fputc ( ch, out );
    }
    else
    {
        for (i=0; i< (sz/512); i++)
        {
            if ((fread(buf, 512, 1, in)) != 1)
                goto ERROR1;
            if ((fwrite(buf, 512, 1, out)) != 1)
                goto ERROR1;
        }
    }

    fsync(out);
    ret = 0;
ERROR1:
    fclose ( out );
ERROR2:
    fclose ( in );
ERROR3:
    return ret;

}