void
do_cksum(int argc, char *argv[])
{
struct option_info opts[2];
unsigned long base, len, crc;
bool base_set, len_set;
init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,
(void *)&base, (bool *)&base_set, "base address");
init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM,
(void *)&len, (bool *)&len_set, "length");
if (!scan_opts(argc, argv, 1, opts, 2, 0, 0, "")) {
return;
}
if (!base_set || !len_set) {
if (load_address >= (CYG_ADDRESS)ram_start &&
load_address_end < (CYG_ADDRESS)ram_end &&
load_address < load_address_end) {
base = load_address;
len = load_address_end - load_address;
diag_printf("Computing cksum for area %lx-%lx\n",
base, load_address_end);
} else {
diag_printf("usage: cksum -b <addr> -l <length>\n");
return;
}
}
crc = cyg_posix_crc32((unsigned char *)base, len);
diag_printf("POSIX cksum = %lu %lu (0x%08lx 0x%08lx)\n", crc, len, crc, len);
}
static void create_file(int i)
{
cyg_int32 buffer[1020];
char name[16];
cyg_uint32 j;
int fd, err;
sprintf(name,"test%07d",i);
fd = creat(name, S_IRWXU);
if (fd == -1) SHOW_RESULT( creat, fd );
for (j=1; j < NELEM(buffer); j++) {
buffer[j] = rand();
}
buffer[0] = 0;
buffer[0] = cyg_posix_crc32((unsigned char *)buffer, sizeof(buffer));
err = write(fd, buffer, sizeof(buffer));
if (err == -1) SHOW_RESULT( write, err );
err = close(fd);
if (err == -1) SHOW_RESULT( close, err );
}
externC void
cyg_start( void )
{
CYG_TEST_INIT();
CYG_TEST_INFO("Calculating CRCs");
if (1500790746l != cyg_posix_crc32(license_txt,sizeof(license_txt)-1)) {
CYG_TEST_FAIL("Wrong POSIX CRC32 calculation");
} else {
CYG_TEST_PASS("POSIX CRC32 calculation");
}
if (1247800780 != cyg_crc32(license_txt,sizeof(license_txt)-1)) {
CYG_TEST_FAIL("Wrong Gary S. Browns' crc32 calculation");
} else {
CYG_TEST_PASS("Gary S. Browns' crc32 calculation");
}
if (32256 != cyg_crc16(license_txt,sizeof(license_txt)-1)) {
CYG_TEST_FAIL_FINISH("Wrong 16bit CRC calculation");
} else {
CYG_TEST_PASS_FINISH("16bit CRC calculation");
}
}
static void check_file(int i)
{
char name[16];
int err, fd;
cyg_int32 buffer[1020];
cyg_uint32 crc;
sprintf(name,"test%07d",i);
fd = open(name, O_RDONLY);
if (fd == -1) SHOW_RESULT( open, fd );
err = read(fd, buffer, sizeof(buffer));
if (err == -1) SHOW_RESULT( read, fd );
crc = buffer[0];
buffer[0] = 0;
if (crc != cyg_posix_crc32((unsigned char *)buffer, sizeof(buffer))) {
CYG_TEST_FAIL("File corrupt");
}
err = close(fd);
if (err == -1) SHOW_RESULT( read, fd );
}
