/* Restore the terminal's normal settings and modes. */
void
rl_deprep_terminal (void)
{
#if !defined (__GO32__)
int tty = fileno (rl_instream);
if (!terminal_prepped)
return;
/* Try to keep this function from being INTerrupted. */
block_sigint ();
control_meta_key (0);
#if 0
control_keypad (0);
#endif
fflush (rl_outstream);
if (set_tty_settings (tty, &otio) < 0)
{
release_sigint ();
return;
}
terminal_prepped = 0;
release_sigint ();
#endif /* !__GO32__ */
}
int scsi_open_device (void) {
#ifdef SG_BIG_BUFF
int msize;
scsi_6byte_cmd INQUIRY = { 0x12, 0x00, 0x00, 0x00, 0xff, 0x00 };
union {
unsigned char buf[SG_BIG_BUFF + SCSI_HDRLEN];
struct sg_header hdr;
} scsi_packet;
#endif
if (!scsi_device) { /* Return if no SCSI device is specified */
fprintf(stderr, "scsi_open_device: no device specified\n");
return(RET_FAIL);
}
scsi_fd = open(scsi_device, O_RDWR);
if (scsi_fd < 0) {
perror("scsi_open_device");
return(RET_FAIL);
}
#ifdef SG_BIG_BUFF
/* This is a rather brute-force approach to determine the actual buffer */
/* size, which is (or can be) _lower_ than SG_BIG_BUFF bytes. Don't */
/* know why... */
if (block_sigint() < 0)
SCSI_ERR("scsi_open_device: Cannot block SIGINT.\n");
for (msize = 4096; msize < SG_BIG_BUFF; msize += 512) {
scsi_packet.hdr.pack_len = 6 + SCSI_HDRLEN;
scsi_packet.hdr.reply_len = msize;
/* Fix from Itai Nahshon <*****@*****.**> */
/* was: memcpy(scsi_packet.buf, INQUIRY, 6); */
memcpy(scsi_packet.buf + SCSI_HDRLEN, INQUIRY, 6);
if (write(scsi_fd, &scsi_packet, SCSI_HDRLEN + 6) < 0) break;
read(scsi_fd, &scsi_packet, msize + SCSI_HDRLEN);
scsi_memsize = msize;
}
if (unblock_sigint() < 0)
SCSI_ERR("scsi_open_device: Cannot unblock SIGINT.\n");
#endif
SCSI_MSG(3, "scsi_open_device: SCSI memory size is %d bytes.\n",
scsi_memsize);
return(scsi_fd);
}
static void *reader_thread(void *data)
{
char buf[MAX_BUFLEN];
char filename[PATH_MAX];
const char *output = data;
int failed = 0, fd, out_fd, len;
block_sigint();
if (output) {
out_fd = open(output, O_CREAT | O_WRONLY | O_TRUNC,
S_IRUSR|S_IWUSR);
if (out_fd < 0) {
fprintf(stderr, "Cannot open output file %s\n", output);
return NULL;
}
} else
out_fd = 2;
sprintf(filename, "/sys/kernel/debug/ktap/trace_pipe_%d", ktap_pid);
open_again:
fd = open(filename, O_RDONLY);
if (fd < 0) {
usleep(10000);
if (failed++ == 10) {
fprintf(stderr, "Cannot open file %s\n", filename);
return NULL;
}
goto open_again;
}
while ((len = read(fd, buf, sizeof(buf))) > 0)
write(out_fd, buf, len);
close(fd);
close(out_fd);
return NULL;
}
/* Put the terminal in CBREAK mode so that we can detect key presses. */
void
rl_prep_terminal (int meta_flag)
{
#if !defined (__GO32__)
int tty = fileno (rl_instream);
TIOTYPE tio;
if (terminal_prepped)
return;
/* Try to keep this function from being INTerrupted. */
block_sigint ();
if (get_tty_settings (tty, &tio) < 0)
{
release_sigint ();
return;
}
otio = tio;
prepare_terminal_settings (meta_flag, otio, &tio);
if (set_tty_settings (tty, &tio) < 0)
{
release_sigint ();
return;
}
control_meta_key (1);
#if 0
control_keypad (1);
#endif
fflush (rl_outstream);
terminal_prepped = 1;
release_sigint ();
#endif /* !__GO32__ */
}
int scsi_handle_cmd (unsigned char *scsi_cmd, int scsi_cmd_len,
unsigned char *scsi_data, int data_size,
unsigned char *scsi_reply, int reply_size) {
struct sg_header *scsi_hdr;
unsigned char scsi_buffer[SCSI_BUFSIZE];
int status = 0;
int scsi_pack_len = SCSI_HDRLEN + scsi_cmd_len + data_size;
int scsi_reply_len = SCSI_HDRLEN + reply_size;
if (scsi_cmd == NULL)
SCSI_ERR("scsi_handle_cmd: No command.\n");
if ((scsi_cmd_len != 6) && (scsi_cmd_len != 10) && (scsi_cmd_len != 12))
SCSI_ERR("scsi_handle_cmd: Illegal command length (%d).\n", scsi_cmd_len);
if (data_size && (scsi_data == NULL))
SCSI_ERR("scsi_handle_cmd: Input data expected.\n");
if (reply_size && (scsi_reply == NULL))
SCSI_ERR("scsi_handle_cmd: No space allocated for expected reply.\n");
if (scsi_pack_len > SCSI_BUFSIZE)
SCSI_ERR("scsi_handle_cmd: Packet length exceeds buffer size\n "
" (buffer size %d bytes, packet length %d bytes).\n",
SCSI_BUFSIZE, scsi_pack_len);
if (scsi_reply_len > SCSI_BUFSIZE)
SCSI_ERR("scsi_handle_cmd: Reply length exceeds buffer size\n "
" (buffer size %d bytes, reply length %d bytes).\n",
SCSI_BUFSIZE, scsi_reply_len);
SCSI_MSG(5, "scsi_handle_cmd: Sending command, opcode 0x%02x.\n",
scsi_cmd[0]);
SCSI_MSG(5, "scsi_handle_cmd: Pack length = %d, expected reply size = %d\n",
scsi_pack_len, scsi_reply_len);
scsi_hdr = (struct sg_header *)scsi_buffer;
scsi_hdr->pack_len = scsi_pack_len;
/* The reply length should be set to the actual reply length expected, */
/* but this causes various strange errors (kernel panics or silent */
/* system crashes) with my AVA-1502E adapter card; it works if the */
/* value is set to the maximum value. */
#if (SCSI_REPLYLEN_FIX)
scsi_hdr->reply_len = scsi_memsize + SCSI_HDRLEN;
#else
scsi_hdr->reply_len = scsi_reply_len;
#endif
scsi_hdr->pack_id = ++scsi_pack_id;
scsi_hdr->twelve_byte = (scsi_cmd_len == 12);
scsi_hdr->result = 0;
/* copy command (and data, if available) to the scsi buffer (after */
/* the header data) */
memcpy(scsi_buffer+SCSI_HDRLEN, scsi_cmd, scsi_cmd_len);
if (data_size)
memcpy(scsi_buffer+SCSI_HDRLEN+scsi_cmd_len, scsi_data, data_size);
/* If SIGINT is caught between write and read, the device is */
/* blocked forever. So we block SIGINT instead. */
if (block_sigint() < 0)
SCSI_ERR("scsi_handle_cmd: Cannot block SIGINT.\n");
status = write(scsi_fd, scsi_buffer, scsi_pack_len);
if (status < 0) {
perror("scsi_handle_cmd");
return(RET_FAIL);
}
if (status != scsi_pack_len)
SCSI_ERR("scsi_handle_cmd: Write incomplete (%d of %d bytes written).\n",
status, scsi_pack_len);
/* I never get a result other than 0 after a write(), so this */
/* is probably unneccessary */
#if 1
if (scsi_hdr->result)
SCSI_ERR("scsi_handle_cmd: SCSI error (opcode 0x%02x, result 0x%02x).\n",
scsi_cmd[0], scsi_hdr->result);
#endif
status = read(scsi_fd, scsi_buffer, scsi_reply_len);
/* Now we can allow SIGINT again. */
if (unblock_sigint() < 0)
SCSI_ERR("scsi_handle_cmd: Cannot unblock SIGINT.\n");
SCSI_MSG(5, "scsi_handle_cmd: %d bytes read, result = 0x%02x.\n",
status, scsi_hdr->result);
SCSI_MSG(4, "scsi_handle_cmd: Sense buffer [0] = 0x%02x\n",
scsi_hdr->sense_buffer[0]);
if (status < 0) {
perror("scsi_handle_cmd");
return(RET_FAIL);
}
if (status != scsi_reply_len)
SCSI_ERR("scsi_handle_cmd: Read error (%d bytes read, "
"%d bytes expected).\n", status, scsi_reply_len);
if (scsi_hdr->pack_id != scsi_pack_id)
SCSI_ERR("scsi_handle_cmd: SCSI packet IDs do not match.\n");
memcpy(scsi_sensebuffer, scsi_hdr->sense_buffer, 16);
if (scsi_hdr->result || scsi_hdr->sense_buffer[0]) {
/* Sense data is only written to stderr if scsi_debug_level is > 0. */
/* Otherwise, the function just returns RET_FAIL, and the calling */
/* function is left to analyze the sense data in scsi_sensebuffer. */
if (scsi_debug_level > 0) {
if (scsi_hdr->result)
fprintf(stderr, "scsi_handle_cmd: %s\n", strerror(scsi_hdr->result));
fprintf(stderr, "scsi_handle_cmd: error reading from SCSI device\n");
fprintf(stderr, " SCSI opcode = 0x%02x "
"result = 0x%02x status = %d\n", scsi_cmd[0],
scsi_hdr->result, status);
fprintf(stderr, " sense buffer: "
"%02x %02x %02x %02x %02x %02x %02x %02x "
"%02x %02x %02x %02x %02x %02x %02x %02x\n",
scsi_hdr->sense_buffer[0], scsi_hdr->sense_buffer[1],
scsi_hdr->sense_buffer[2], scsi_hdr->sense_buffer[3],
scsi_hdr->sense_buffer[4], scsi_hdr->sense_buffer[5],
scsi_hdr->sense_buffer[6], scsi_hdr->sense_buffer[7],
scsi_hdr->sense_buffer[8], scsi_hdr->sense_buffer[9],
scsi_hdr->sense_buffer[10], scsi_hdr->sense_buffer[11],
scsi_hdr->sense_buffer[12], scsi_hdr->sense_buffer[13],
scsi_hdr->sense_buffer[14], scsi_hdr->sense_buffer[15]);
}
return(RET_FAIL);
}
if (scsi_reply) memcpy(scsi_reply, scsi_buffer+SCSI_HDRLEN, reply_size);
return(RET_SUCCESS);
}