int
main(int argc, char * argv[])
{
bool correct = false;
bool do_16 = false;
bool pblock = false;
bool readonly = false;
bool got_stdout;
bool verbose_given = false;
bool version_given = false;
int outfd, res, c;
int sg_fd = -1;
int ret = 0;
int xfer_len = 520;
int verbose = 0;
uint64_t llba = 0;
int64_t ll;
uint8_t * readLongBuff = NULL;
uint8_t * rawp = NULL;
uint8_t * free_rawp = NULL;
const char * device_name = NULL;
char out_fname[256];
char ebuff[EBUFF_SZ];
memset(out_fname, 0, sizeof out_fname);
while (1) {
int option_index = 0;
c = getopt_long(argc, argv, "chl:o:prSvVx:", long_options,
&option_index);
if (c == -1)
break;
switch (c) {
case 'c':
correct = true;
break;
case 'h':
case '?':
usage();
return 0;
case 'l':
ll = sg_get_llnum(optarg);
if (-1 == ll) {
pr2serr("bad argument to '--lba'\n");
return SG_LIB_SYNTAX_ERROR;
}
llba = (uint64_t)ll;
break;
case 'o':
strncpy(out_fname, optarg, sizeof(out_fname) - 1);
break;
case 'p':
pblock = true;
break;
case 'r':
readonly = true;
break;
case 'S':
do_16 = true;
break;
case 'v':
verbose_given = true;
++verbose;
break;
case 'V':
version_given = true;
break;
case 'x':
xfer_len = sg_get_num(optarg);
if (-1 == xfer_len) {
pr2serr("bad argument to '--xfer_len'\n");
return SG_LIB_SYNTAX_ERROR;
}
break;
default:
pr2serr("unrecognised option code 0x%x ??\n", c);
usage();
return SG_LIB_SYNTAX_ERROR;
}
}
if (optind < argc) {
if (NULL == device_name) {
device_name = argv[optind];
++optind;
}
if (optind < argc) {
for (; optind < argc; ++optind)
pr2serr("Unexpected extra argument: %s\n", argv[optind]);
usage();
return SG_LIB_SYNTAX_ERROR;
}
}
#ifdef DEBUG
pr2serr("In DEBUG mode, ");
if (verbose_given && version_given) {
pr2serr("but override: '-vV' given, zero verbose and continue\n");
verbose_given = false;
version_given = false;
verbose = 0;
} else if (! verbose_given) {
pr2serr("set '-vv'\n");
verbose = 2;
} else
pr2serr("keep verbose=%d\n", verbose);
#else
if (verbose_given && version_given)
pr2serr("Not in DEBUG mode, so '-vV' has no special action\n");
#endif
if (version_given) {
pr2serr(ME "version: %s\n", version_str);
return 0;
}
if (NULL == device_name) {
pr2serr("Missing device name!\n\n");
usage();
return SG_LIB_SYNTAX_ERROR;
}
if (xfer_len >= MAX_XFER_LEN){
pr2serr("xfer_len (%d) is out of range ( < %d)\n", xfer_len,
MAX_XFER_LEN);
usage();
return SG_LIB_SYNTAX_ERROR;
}
sg_fd = sg_cmds_open_device(device_name, readonly, verbose);
if (sg_fd < 0) {
if (verbose)
pr2serr(ME "open error: %s: %s\n", device_name,
safe_strerror(-sg_fd));
ret = sg_convert_errno(-sg_fd);
goto err_out;
}
if (NULL == (rawp = (uint8_t *)sg_memalign(MAX_XFER_LEN, 0, &free_rawp,
false))) {
if (verbose)
pr2serr(ME "out of memory\n");
ret = sg_convert_errno(ENOMEM);
goto err_out;
}
readLongBuff = (uint8_t *)rawp;
memset(rawp, 0x0, MAX_XFER_LEN);
pr2serr(ME "issue read long (%s) to device %s\n xfer_len=%d (0x%x), "
"lba=%" PRIu64 " (0x%" PRIx64 "), correct=%d\n",
(do_16 ? "16" : "10"), device_name, xfer_len, xfer_len, llba,
llba, (int)correct);
if ((ret = process_read_long(sg_fd, do_16, pblock, correct, llba,
readLongBuff, xfer_len, verbose)))
goto err_out;
if ('\0' == out_fname[0])
hex2stdout((const uint8_t *)rawp, xfer_len, 0);
else {
got_stdout = (0 == strcmp(out_fname, "-"));
if (got_stdout)
outfd = STDOUT_FILENO;
else {
if ((outfd = open(out_fname, O_WRONLY | O_CREAT | O_TRUNC,
0666)) < 0) {
snprintf(ebuff, EBUFF_SZ,
ME "could not open %s for writing", out_fname);
perror(ebuff);
goto err_out;
}
}
if (sg_set_binary_mode(outfd) < 0) {
perror("sg_set_binary_mode");
goto err_out;
}
res = write(outfd, readLongBuff, xfer_len);
if (res < 0) {
snprintf(ebuff, EBUFF_SZ, ME "couldn't write to %s", out_fname);
perror(ebuff);
goto err_out;
}
if (! got_stdout)
close(outfd);
}
err_out:
if (free_rawp)
free(free_rawp);
if (sg_fd >= 0) {
res = sg_cmds_close_device(sg_fd);
if (res < 0) {
pr2serr("close error: %s\n", safe_strerror(-res));
if (0 == ret)
ret = sg_convert_errno(-res);
}
}
if (0 == verbose) {
if (! sg_if_can2stderr("sg_read_long failed: ", ret))
pr2serr("Some error occurred, try again with '-v' "
"or '-vv' for more information\n");
}
return (ret >= 0) ? ret : SG_LIB_CAT_OTHER;
}
int
main(int argc, char * argv[])
{
int sg_fd, outfd, res, c;
unsigned char * readLongBuff = NULL;
void * rawp = NULL;
int correct = 0;
int xfer_len = 520;
int do_16 = 0;
int pblock = 0;
uint64_t llba = 0;
int readonly = 0;
int verbose = 0;
int64_t ll;
int got_stdout;
const char * device_name = NULL;
char out_fname[256];
char ebuff[EBUFF_SZ];
int ret = 0;
memset(out_fname, 0, sizeof out_fname);
while (1) {
int option_index = 0;
c = getopt_long(argc, argv, "chl:o:prSvVx:", long_options,
&option_index);
if (c == -1)
break;
switch (c) {
case 'c':
correct = 1;
break;
case 'h':
case '?':
usage();
return 0;
case 'l':
ll = sg_get_llnum(optarg);
if (-1 == ll) {
fprintf(stderr, "bad argument to '--lba'\n");
return SG_LIB_SYNTAX_ERROR;
}
llba = (uint64_t)ll;
break;
case 'o':
strncpy(out_fname, optarg, sizeof(out_fname) - 1);
break;
case 'p':
pblock = 1;
break;
case 'r':
++readonly;
break;
case 'S':
do_16 = 1;
break;
case 'v':
++verbose;
break;
case 'V':
fprintf(stderr, ME "version: %s\n", version_str);
return 0;
case 'x':
xfer_len = sg_get_num(optarg);
if (-1 == xfer_len) {
fprintf(stderr, "bad argument to '--xfer_len'\n");
return SG_LIB_SYNTAX_ERROR;
}
break;
default:
fprintf(stderr, "unrecognised option code 0x%x ??\n", c);
usage();
return SG_LIB_SYNTAX_ERROR;
}
}
if (optind < argc) {
if (NULL == device_name) {
device_name = argv[optind];
++optind;
}
if (optind < argc) {
for (; optind < argc; ++optind)
fprintf(stderr, "Unexpected extra argument: %s\n",
argv[optind]);
usage();
return SG_LIB_SYNTAX_ERROR;
}
}
if (NULL == device_name) {
fprintf(stderr, "missing device name!\n");
usage();
return SG_LIB_SYNTAX_ERROR;
}
if (xfer_len >= MAX_XFER_LEN){
fprintf(stderr, "xfer_len (%d) is out of range ( < %d)\n",
xfer_len, MAX_XFER_LEN);
usage();
return SG_LIB_SYNTAX_ERROR;
}
sg_fd = sg_cmds_open_device(device_name, readonly, verbose);
if (sg_fd < 0) {
fprintf(stderr, ME "open error: %s: %s\n", device_name,
safe_strerror(-sg_fd));
return SG_LIB_FILE_ERROR;
}
if (NULL == (rawp = malloc(MAX_XFER_LEN))) {
fprintf(stderr, ME "out of memory\n");
sg_cmds_close_device(sg_fd);
return SG_LIB_SYNTAX_ERROR;
}
readLongBuff = (unsigned char *)rawp;
memset(rawp, 0x0, MAX_XFER_LEN);
fprintf(stderr, ME "issue read long (%s) to device %s\n xfer_len=%d "
"(0x%x), lba=%" PRIu64 " (0x%" PRIx64 "), correct=%d\n",
(do_16 ? "16" : "10"), device_name, xfer_len, xfer_len, llba,
llba, correct);
if ((ret = process_read_long(sg_fd, do_16, pblock, correct, llba,
readLongBuff, xfer_len, verbose)))
goto err_out;
if ('\0' == out_fname[0])
dStrHex((const char *)rawp, xfer_len, 0);
else {
got_stdout = (0 == strcmp(out_fname, "-")) ? 1 : 0;
if (got_stdout)
outfd = STDOUT_FILENO;
else {
if ((outfd = open(out_fname, O_WRONLY | O_CREAT | O_TRUNC,
0666)) < 0) {
snprintf(ebuff, EBUFF_SZ,
ME "could not open %s for writing", out_fname);
perror(ebuff);
goto err_out;
}
}
if (sg_set_binary_mode(outfd) < 0) {
perror("sg_set_binary_mode");
goto err_out;
}
res = write(outfd, readLongBuff, xfer_len);
if (res < 0) {
snprintf(ebuff, EBUFF_SZ, ME "couldn't write to %s", out_fname);
perror(ebuff);
goto err_out;
}
if (! got_stdout)
close(outfd);
}
err_out:
if (rawp) free(rawp);
res = sg_cmds_close_device(sg_fd);
if (res < 0) {
fprintf(stderr, "close error: %s\n", safe_strerror(-res));
if (0 == ret)
return SG_LIB_FILE_ERROR;
}
return (ret >= 0) ? ret : SG_LIB_CAT_OTHER;
}
