/************************************************************************
* msr_decode_int16:
*
* Decode 16-bit integer data and place in supplied buffer as 32-bit
* integers.
*
* Return number of samples in output buffer on success, -1 on error.
************************************************************************/
int
msr_decode_int16 (int16_t *input, int samplecount, int32_t *output,
int outputlength, int swapflag)
{
int16_t sample;
int idx;
if (samplecount <= 0)
return 0;
if (!input || !output || outputlength <= 0)
return -1;
for (idx = 0; idx < samplecount && outputlength >= (int)sizeof (int32_t); idx++)
{
sample = input[idx];
if (swapflag)
ms_gswap2a (&sample);
output[idx] = (int32_t)sample;
outputlength -= sizeof (int32_t);
}
return idx;
} /* End of msr_decode_int16() */
/************************************************************************
* msr_decode_dwwssn:
*
* Decode DWWSSN encoded miniSEED data and place in supplied buffer
* as 32-bit integers.
*
* Return number of samples in output buffer on success, -1 on error.
************************************************************************/
int
msr_decode_dwwssn (int16_t *input, int samplecount, int32_t *output,
int outputlength, int swapflag)
{
int32_t idx = 0;
int32_t sample;
uint16_t sint;
if (samplecount < 0)
return 0;
for (idx = 0; idx < samplecount && outputlength >= (int)sizeof (int32_t); idx++)
{
memcpy (&sint, &input[idx], sizeof (uint16_t));
if (swapflag)
ms_gswap2a (&sint);
sample = (int32_t)sint;
/* Take 2's complement for sample */
if (sample > MAX16)
sample -= 2 * (MAX16 + 1);
/* Save sample in output array */
output[idx] = sample;
outputlength -= sizeof (int32_t);
}
return idx;
} /* End of msr_decode_dwwssn() */
/************************************************************************
* msr_decode_sro:
*
* Decode SRO gain ranged data encoded miniSEED data and place in
* supplied buffer as 32-bit integers.
*
* Notes from original rdseed routine:
* SRO data are represented according to the formula
*
* sample = M * (b exp {[m * (G + agr)] + ar})
*
* where
* sample = seismic data sample
* M = mantissa
* G = gain range factor
* b = base to be exponentiated = 2 for SRO
* m = multiplier = -1 for SRO
* agr = term to be added to gain range factor = 0 for SRO
* ar = term to be added to [m * (gr + agr)] = 10 for SRO
* exp = exponentiation operation
* Data are stored in two bytes as follows:
* fedc ba98 7654 3210 = bit number, power of two
* GGGG MMMM MMMM MMMM = form of SEED data
* where G = gain range factor and M = mantissa
* Masks to recover gain range and mantissa:
* fedc ba98 7654 3210 = bit number = power of two
* 0000 1111 1111 1111 = 0x0fff = mask for mantissa
* 1111 0000 0000 0000 = 0xf000 = mask for gain range
*
* Return number of samples in output buffer on success, -1 on error.
************************************************************************/
int
msr_decode_sro (int16_t *input, int samplecount, int32_t *output,
int outputlength, char *srcname, int swapflag)
{
int32_t idx = 0;
int32_t mantissa; /* mantissa */
int32_t gainrange; /* gain range factor */
int32_t add2gr; /* added to gainrage factor */
int32_t mult; /* multiplier for gain range */
int32_t add2result; /* added to multiplied gain rage */
int32_t exponent; /* total exponent */
uint16_t sint;
int32_t sample;
if (samplecount <= 0)
return 0;
add2gr = 0;
mult = -1;
add2result = 10;
for (idx = 0; idx < samplecount && outputlength >= (int)sizeof (int32_t); idx++)
{
memcpy (&sint, &input[idx], sizeof (int16_t));
if (swapflag)
ms_gswap2a (&sint);
/* Recover mantissa and gain range factor */
mantissa = (sint & SRO_MANTISSA_MASK);
gainrange = (sint & SRO_GAINRANGE_MASK) >> SRO_SHIFT;
/* Take 2's complement for mantissa */
if (mantissa > MAX12)
mantissa -= 2 * (MAX12 + 1);
/* Calculate exponent, SRO exponent = 0..10 */
exponent = (mult * (gainrange + add2gr)) + add2result;
if (exponent < 0 || exponent > 10)
{
ms_log (2, "msr_decode_sro(%s): SRO gain ranging exponent out of range: %d\n",
srcname, exponent);
return MS_GENERROR;
}
/* Calculate sample as mantissa * 2^exponent */
sample = mantissa * ((uint64_t)1 << exponent);
/* Save sample in output array */
output[idx] = sample;
outputlength -= sizeof (int32_t);
}
return idx;
} /* End of msr_decode_sro() */
/************************************************************************
* msr_decode_cdsn:
*
* Decode CDSN gain ranged data encoded miniSEED data and place in
* supplied buffer as 32-bit integers.
*
* Notes from original rdseed routine:
* CDSN data are compressed according to the formula
*
* sample = M * (2 exp G)
*
* where
* sample = seismic data sample
* M = mantissa; biased mantissa B is written to tape
* G = exponent of multiplier (i.e. gain range factor);
* key K is written to tape
* exp = exponentiation operation
* B = M + 8191, biased mantissa, written to tape
* K = key to multiplier exponent, written to tape
* K may have any of the values 0 - 3, as follows:
* 0 => G = 0, multiplier = 2 exp 0 = 1
* 1 => G = 2, multiplier = 2 exp 2 = 4
* 2 => G = 4, multiplier = 2 exp 4 = 16
* 3 => G = 7, multiplier = 2 exp 7 = 128
* Data are stored on tape in two bytes as follows:
* fedc ba98 7654 3210 = bit number, power of two
* KKBB BBBB BBBB BBBB = form of SEED data
* where K = key to multiplier exponent and B = biased mantissa
*
* Masks to recover key to multiplier exponent and biased mantissa
* from tape are:
* fedc ba98 7654 3210 = bit number = power of two
* 0011 1111 1111 1111 = 0x3fff = mask for biased mantissa
* 1100 0000 0000 0000 = 0xc000 = mask for gain range key
*
* Return number of samples in output buffer on success, -1 on error.
************************************************************************/
int
msr_decode_cdsn (int16_t *input, int samplecount, int32_t *output,
int outputlength, int swapflag)
{
int32_t idx = 0;
int32_t mantissa; /* mantissa */
int32_t gainrange; /* gain range factor */
int32_t mult = -1; /* multiplier for gain range */
uint16_t sint;
int32_t sample;
if (samplecount <= 0)
return 0;
for (idx = 0; idx < samplecount && outputlength >= (int)sizeof (int32_t); idx++)
{
memcpy (&sint, &input[idx], sizeof (int16_t));
if (swapflag)
ms_gswap2a (&sint);
/* Recover mantissa and gain range factor */
mantissa = (sint & CDSN_MANTISSA_MASK);
gainrange = (sint & CDSN_GAINRANGE_MASK) >> CDSN_SHIFT;
/* Determine multiplier from the gain range factor and format definition
* because shift operator is used later, these are powers of two */
if (gainrange == 0)
mult = 0;
else if (gainrange == 1)
mult = 2;
else if (gainrange == 2)
mult = 4;
else if (gainrange == 3)
mult = 7;
/* Unbias the mantissa */
mantissa -= MAX14;
/* Calculate sample from mantissa and multiplier using left shift
* mantissa << mult is equivalent to mantissa * (2 exp (mult)) */
sample = (mantissa << mult);
/* Save sample in output array */
output[idx] = sample;
outputlength -= sizeof (int32_t);
}
return idx;
} /* End of msr_decode_cdsn() */
/************************************************************************
* msr_decode_geoscope:
*
* Decode GEOSCOPE gain ranged data (demultiplexed only) encoded
* miniSEED data and place in supplied buffer as 32-bit floats.
*
* Return number of samples in output buffer on success, -1 on error.
************************************************************************/
int
msr_decode_geoscope (char *input, int samplecount, float *output,
int outputlength, int encoding,
char *srcname, int swapflag)
{
int idx = 0;
int mantissa; /* mantissa from SEED data */
int gainrange; /* gain range factor */
int exponent; /* total exponent */
int k;
uint64_t exp2val;
int16_t sint;
double dsample = 0.0;
union {
uint8_t b[4];
uint32_t i;
} sample32;
if (!input || !output)
return -1;
if (samplecount <= 0 || outputlength <= 0)
return -1;
/* Make sure we recognize this as a GEOSCOPE encoding format */
if (encoding != DE_GEOSCOPE24 &&
encoding != DE_GEOSCOPE163 &&
encoding != DE_GEOSCOPE164)
{
ms_log (2, "msr_decode_geoscope(%s): unrecognized GEOSCOPE encoding: %d\n",
srcname, encoding);
return -1;
}
for (idx = 0; idx < samplecount && outputlength >= (int)sizeof (float); idx++)
{
switch (encoding)
{
case DE_GEOSCOPE24:
sample32.i = 0;
if (swapflag)
for (k = 0; k < 3; k++)
sample32.b[2 - k] = input[k];
else
for (k = 0; k < 3; k++)
sample32.b[1 + k] = input[k];
mantissa = sample32.i;
/* Take 2's complement for mantissa for overflow */
if (mantissa > MAX24)
mantissa -= 2 * (MAX24 + 1);
/* Store */
dsample = (double)mantissa;
break;
case DE_GEOSCOPE163:
memcpy (&sint, input, sizeof (int16_t));
if (swapflag)
ms_gswap2a (&sint);
/* Recover mantissa and gain range factor */
mantissa = (sint & GEOSCOPE_MANTISSA_MASK);
gainrange = (sint & GEOSCOPE_GAIN3_MASK) >> GEOSCOPE_SHIFT;
/* Exponent is just gainrange for GEOSCOPE */
exponent = gainrange;
/* Calculate sample as mantissa / 2^exponent */
exp2val = (uint64_t)1 << exponent;
dsample = ((double)(mantissa - 2048)) / exp2val;
break;
case DE_GEOSCOPE164:
memcpy (&sint, input, sizeof (int16_t));
if (swapflag)
ms_gswap2a (&sint);
/* Recover mantissa and gain range factor */
mantissa = (sint & GEOSCOPE_MANTISSA_MASK);
gainrange = (sint & GEOSCOPE_GAIN4_MASK) >> GEOSCOPE_SHIFT;
/* Exponent is just gainrange for GEOSCOPE */
exponent = gainrange;
/* Calculate sample as mantissa / 2^exponent */
exp2val = (uint64_t)1 << exponent;
dsample = ((double)(mantissa - 2048)) / exp2val;
break;
}
/* Save sample in output array */
output[idx] = (float)dsample;
outputlength -= sizeof (float);
/* Increment edata pointer depending on size */
switch (encoding)
{
case DE_GEOSCOPE24:
input += 3;
break;
case DE_GEOSCOPE163:
case DE_GEOSCOPE164:
input += 2;
break;
}
}
return idx;
} /* End of msr_decode_geoscope() */
/************************************************************************
* msr_decode_steim1:
*
* Decode Steim1 encoded miniSEED data and place in supplied buffer
* as 32-bit integers.
*
* Return number of samples in output buffer on success, -1 on error.
************************************************************************/
int
msr_decode_steim1 (int32_t *input, int inputlength, int samplecount,
int32_t *output, int outputlength, char *srcname,
int swapflag)
{
int32_t *outputptr = output; /* Pointer to next output sample location */
uint32_t frame[16]; /* Frame, 16 x 32-bit quantities = 64 bytes */
int32_t X0 = 0; /* Forward integration constant, aka first sample */
int32_t Xn = 0; /* Reverse integration constant, aka last sample */
int maxframes = inputlength / 64;
int frameidx;
int startnibble;
int nibble;
int widx;
int diffcount;
int idx;
union dword {
int8_t d8[4];
int16_t d16[2];
int32_t d32;
} * word;
if (inputlength <= 0)
return 0;
if (!input || !output || outputlength <= 0 || maxframes <= 0)
return -1;
if (decodedebug)
ms_log (1, "Decoding %d Steim1 frames, swapflag: %d, srcname: %s\n",
maxframes, swapflag, (srcname) ? srcname : "");
for (frameidx = 0; frameidx < maxframes && samplecount > 0; frameidx++)
{
/* Copy frame, each is 16x32-bit quantities = 64 bytes */
memcpy (frame, input + (16 * frameidx), 64);
/* Save forward integration constant (X0) and reverse integration constant (Xn)
and set the starting nibble index depending on frame. */
if (frameidx == 0)
{
if (swapflag)
{
ms_gswap4a (&frame[1]);
ms_gswap4a (&frame[2]);
}
X0 = frame[1];
Xn = frame[2];
startnibble = 3; /* First frame: skip nibbles, X0, and Xn */
if (decodedebug)
ms_log (1, "Frame %d: X0=%d Xn=%d\n", frameidx, X0, Xn);
}
else
{
startnibble = 1; /* Subsequent frames: skip nibbles */
if (decodedebug)
ms_log (1, "Frame %d\n", frameidx);
}
/* Swap 32-bit word containing the nibbles */
if (swapflag)
ms_gswap4a (&frame[0]);
/* Decode each 32-bit word according to nibble */
for (widx = startnibble; widx < 16 && samplecount > 0; widx++)
{
/* W0: the first 32-bit contains 16 x 2-bit nibbles for each word */
nibble = EXTRACTBITRANGE (frame[0], (30 - (2 * widx)), 2);
word = (union dword *)&frame[widx];
diffcount = 0;
switch (nibble)
{
case 0: /* 00: Special flag, no differences */
if (decodedebug)
ms_log (1, " W%02d: 00=special\n", widx);
break;
case 1: /* 01: Four 1-byte differences */
diffcount = 4;
if (decodedebug)
ms_log (1, " W%02d: 01=4x8b %d %d %d %d\n",
widx, word->d8[0], word->d8[1], word->d8[2], word->d8[3]);
break;
case 2: /* 10: Two 2-byte differences */
diffcount = 2;
if (swapflag)
{
ms_gswap2a (&word->d16[0]);
ms_gswap2a (&word->d16[1]);
}
if (decodedebug)
ms_log (1, " W%02d: 10=2x16b %d %d\n", widx, word->d16[0], word->d16[1]);
break;
case 3: /* 11: One 4-byte difference */
diffcount = 1;
if (swapflag)
ms_gswap4a (&word->d32);
if (decodedebug)
ms_log (1, " W%02d: 11=1x32b %d\n", widx, word->d32);
break;
} /* Done with decoding 32-bit word based on nibble */
/* Apply accumulated differences to calculate output samples */
if (diffcount > 0)
{
for (idx = 0; idx < diffcount && samplecount > 0; idx++, outputptr++)
{
if (outputptr == output) /* Ignore first difference, instead store X0 */
*outputptr = X0;
else if (diffcount == 4) /* Otherwise store difference from previous sample */
*outputptr = *(outputptr - 1) + word->d8[idx];
else if (diffcount == 2)
*outputptr = *(outputptr - 1) + word->d16[idx];
else if (diffcount == 1)
*outputptr = *(outputptr - 1) + word->d32;
samplecount--;
}
}
} /* Done looping over nibbles and 32-bit words */
} /* Done looping over frames */
/* Check data integrity by comparing last sample to Xn (reverse integration constant) */
if (outputptr != output && *(outputptr - 1) != Xn)
{
ms_log (1, "%s: Warning: Data integrity check for Steim1 failed, Last sample=%d, Xn=%d\n",
srcname, *(outputptr - 1), Xn);
}
return (outputptr - output);
} /* End of msr_decode_steim1() */
/***************************************************************************
* ms_parse_raw:
*
* Parse and verify a SEED data record header (fixed section and
* blockettes) at the lowest level, printing error messages for
* invalid header values and optionally print raw header values. The
* memory at 'record' is assumed to be a Mini-SEED record. Not every
* possible test is performed, common errors and those causing
* libmseed parsing to fail should be detected.
*
* The 'details' argument is interpreted as follows:
*
* details:
* 0 = only print error messages for invalid header fields
* 1 = print basic fields in addition to invalid field errors
* 2 = print all fields in addition to invalid field errors
*
* The 'swapflag' argument is interpreted as follows:
*
* swapflag:
* 1 = swap multibyte quantities
* 0 = do no swapping
* -1 = autodetect byte order using year test, swap if needed
*
* Any byte swapping performed by this routine is applied directly to
* the memory reference by the record pointer.
*
* This routine is primarily intended to diagnose invalid Mini-SEED headers.
*
* Returns 0 when no errors were detected or a positive count of
* errors detected.
***************************************************************************/
int
ms_parse_raw ( char *record, int maxreclen, flag details, flag swapflag )
{
struct fsdh_s *fsdh;
double nomsamprate;
char srcname[50];
char *X;
char b;
int retval = 0;
int b1000encoding = -1;
int b1000reclen = -1;
int endofblockettes = -1;
int idx;
if ( ! record )
return 1;
/* Generate a source name string */
srcname[0] = '\0';
ms_recsrcname (record, srcname, 1);
fsdh = (struct fsdh_s *) record;
/* Check to see if byte swapping is needed by testing the year */
if ( swapflag == -1 &&
((fsdh->start_time.year < 1900) ||
(fsdh->start_time.year > 2050)) )
swapflag = 1;
else
swapflag = 0;
if ( details > 1 )
{
if ( swapflag == 1 )
ms_log (0, "Swapping multi-byte quantities in header\n");
else
ms_log (0, "Not swapping multi-byte quantities in header\n");
}
/* Swap byte order */
if ( swapflag )
{
MS_SWAPBTIME (&fsdh->start_time);
ms_gswap2a (&fsdh->numsamples);
ms_gswap2a (&fsdh->samprate_fact);
ms_gswap2a (&fsdh->samprate_mult);
ms_gswap4a (&fsdh->time_correct);
ms_gswap2a (&fsdh->data_offset);
ms_gswap2a (&fsdh->blockette_offset);
}
/* Validate fixed section header fields */
X = record; /* Pointer of convenience */
/* Check record sequence number, 6 ASCII digits */
if ( ! isdigit((unsigned char) *(X)) || ! isdigit ((unsigned char) *(X+1)) ||
! isdigit((unsigned char) *(X+2)) || ! isdigit ((unsigned char) *(X+3)) ||
! isdigit((unsigned char) *(X+4)) || ! isdigit ((unsigned char) *(X+5)) )
{
ms_log (2, "%s: Invalid sequence number: '%c%c%c%c%c%c'\n", srcname, X, X+1, X+2, X+3, X+4, X+5);
retval++;
}
/* Check header/quality indicator */
if ( ! MS_ISDATAINDICATOR(*(X+6)) )
{
ms_log (2, "%s: Invalid header indicator (DRQM): '%c'\n", srcname, X+6);
retval++;
}
/* Check reserved byte, space or NULL */
if ( ! (*(X+7) == ' ' || *(X+7) == '\0') )
{
ms_log (2, "%s: Invalid fixed section reserved byte (Space): '%c'\n", srcname, X+7);
retval++;
}
/* Check station code, 5 alphanumerics or spaces */
if ( ! (isalnum((unsigned char) *(X+8)) || *(X+8) == ' ') ||
! (isalnum((unsigned char) *(X+9)) || *(X+9) == ' ') ||
! (isalnum((unsigned char) *(X+10)) || *(X+10) == ' ') ||
! (isalnum((unsigned char) *(X+11)) || *(X+11) == ' ') ||
! (isalnum((unsigned char) *(X+12)) || *(X+12) == ' ') )
{
ms_log (2, "%s: Invalid station code: '%c%c%c%c%c'\n", srcname, X+8, X+9, X+10, X+11, X+12);
retval++;
}
/* Check location ID, 2 alphanumerics or spaces */
if ( ! (isalnum((unsigned char) *(X+13)) || *(X+13) == ' ') ||
! (isalnum((unsigned char) *(X+14)) || *(X+14) == ' ') )
{
ms_log (2, "%s: Invalid location ID: '%c%c'\n", srcname, X+13, X+14);
retval++;
}
/* Check channel codes, 3 alphanumerics or spaces */
if ( ! (isalnum((unsigned char) *(X+15)) || *(X+15) == ' ') ||
! (isalnum((unsigned char) *(X+16)) || *(X+16) == ' ') ||
! (isalnum((unsigned char) *(X+17)) || *(X+17) == ' ') )
{
ms_log (2, "%s: Invalid channel codes: '%c%c%c'\n", srcname, X+15, X+16, X+17);
retval++;
}
/* Check network code, 2 alphanumerics or spaces */
if ( ! (isalnum((unsigned char) *(X+18)) || *(X+18) == ' ') ||
! (isalnum((unsigned char) *(X+19)) || *(X+19) == ' ') )
{
ms_log (2, "%s: Invalid network code: '%c%c'\n", srcname, X+18, X+19);
retval++;
}
/* Check start time fields */
if ( fsdh->start_time.year < 1920 || fsdh->start_time.year > 2050 )
{
ms_log (2, "%s: Unlikely start year (1920-2050): '%d'\n", srcname, fsdh->start_time.year);
retval++;
}
if ( fsdh->start_time.day < 1 || fsdh->start_time.day > 366 )
{
ms_log (2, "%s: Invalid start day (1-366): '%d'\n", srcname, fsdh->start_time.day);
retval++;
}
if ( fsdh->start_time.hour > 23 )
{
ms_log (2, "%s: Invalid start hour (0-23): '%d'\n", srcname, fsdh->start_time.hour);
retval++;
}
if ( fsdh->start_time.min > 59 )
{
ms_log (2, "%s: Invalid start minute (0-59): '%d'\n", srcname, fsdh->start_time.min);
retval++;
}
if ( fsdh->start_time.sec > 60 )
{
ms_log (2, "%s: Invalid start second (0-60): '%d'\n", srcname, fsdh->start_time.sec);
retval++;
}
if ( fsdh->start_time.fract > 9999 )
{
ms_log (2, "%s: Invalid start fractional seconds (0-9999): '%d'\n", srcname, fsdh->start_time.fract);
retval++;
}
/* Check number of samples, max samples in 4096-byte Steim-2 encoded record: 6601 */
if ( fsdh->numsamples > 20000 )
{
ms_log (2, "%s: Unlikely number of samples (>20000): '%d'\n", srcname, fsdh->numsamples);
retval++;
}
/* Sanity check that there is space for blockettes when both data and blockettes are present */
if ( fsdh->numsamples > 0 && fsdh->numblockettes > 0 && fsdh->data_offset <= fsdh->blockette_offset )
{
ms_log (2, "%s: No space for %d blockettes, data offset: %d, blockette offset: %d\n", srcname,
fsdh->numblockettes, fsdh->data_offset, fsdh->blockette_offset);
retval++;
}
/* Print raw header details */
if ( details >= 1 )
{
/* Determine nominal sample rate */
nomsamprate = ms_nomsamprate (fsdh->samprate_fact, fsdh->samprate_mult);
/* Print header values */
ms_log (0, "RECORD -- %s\n", srcname);
ms_log (0, " sequence number: '%c%c%c%c%c%c'\n", fsdh->sequence_number[0], fsdh->sequence_number[1], fsdh->sequence_number[2],
fsdh->sequence_number[3], fsdh->sequence_number[4], fsdh->sequence_number[5]);
ms_log (0, " data quality indicator: '%c'\n", fsdh->dataquality);
if ( details > 0 )
ms_log (0, " reserved: '%c'\n", fsdh->reserved);
ms_log (0, " station code: '%c%c%c%c%c'\n", fsdh->station[0], fsdh->station[1], fsdh->station[2], fsdh->station[3], fsdh->station[4]);
ms_log (0, " location ID: '%c%c'\n", fsdh->location[0], fsdh->location[1]);
ms_log (0, " channel codes: '%c%c%c'\n", fsdh->channel[0], fsdh->channel[1], fsdh->channel[2]);
ms_log (0, " network code: '%c%c'\n", fsdh->network[0], fsdh->network[1]);
ms_log (0, " start time: %d,%d,%d:%d:%d.%04d (unused: %d)\n", fsdh->start_time.year, fsdh->start_time.day,
fsdh->start_time.hour, fsdh->start_time.min, fsdh->start_time.sec, fsdh->start_time.fract, fsdh->start_time.unused);
ms_log (0, " number of samples: %d\n", fsdh->numsamples);
ms_log (0, " sample rate factor: %d (%.10g samples per second)\n",
fsdh->samprate_fact, nomsamprate);
ms_log (0, " sample rate multiplier: %d\n", fsdh->samprate_mult);
/* Print flag details if requested */
if ( details > 1 )
{
/* Activity flags */
b = fsdh->act_flags;
ms_log (0, " activity flags: [%u%u%u%u%u%u%u%u] 8 bits\n",
bit(b,0x01), bit(b,0x02), bit(b,0x04), bit(b,0x08),
bit(b,0x10), bit(b,0x20), bit(b,0x40), bit(b,0x80));
if ( b & 0x01 ) ms_log (0, " [Bit 0] Calibration signals present\n");
if ( b & 0x02 ) ms_log (0, " [Bit 1] Time correction applied\n");
if ( b & 0x04 ) ms_log (0, " [Bit 2] Beginning of an event, station trigger\n");
if ( b & 0x08 ) ms_log (0, " [Bit 3] End of an event, station detrigger\n");
if ( b & 0x10 ) ms_log (0, " [Bit 4] A positive leap second happened in this record\n");
if ( b & 0x20 ) ms_log (0, " [Bit 5] A negative leap second happened in this record\n");
if ( b & 0x40 ) ms_log (0, " [Bit 6] Event in progress\n");
if ( b & 0x80 ) ms_log (0, " [Bit 7] Undefined bit set\n");
/* I/O and clock flags */
b = fsdh->io_flags;
ms_log (0, " I/O and clock flags: [%u%u%u%u%u%u%u%u] 8 bits\n",
bit(b,0x01), bit(b,0x02), bit(b,0x04), bit(b,0x08),
bit(b,0x10), bit(b,0x20), bit(b,0x40), bit(b,0x80));
if ( b & 0x01 ) ms_log (0, " [Bit 0] Station volume parity error possibly present\n");
if ( b & 0x02 ) ms_log (0, " [Bit 1] Long record read (possibly no problem)\n");
if ( b & 0x04 ) ms_log (0, " [Bit 2] Short record read (record padded)\n");
if ( b & 0x08 ) ms_log (0, " [Bit 3] Start of time series\n");
if ( b & 0x10 ) ms_log (0, " [Bit 4] End of time series\n");
if ( b & 0x20 ) ms_log (0, " [Bit 5] Clock locked\n");
if ( b & 0x40 ) ms_log (0, " [Bit 6] Undefined bit set\n");
if ( b & 0x80 ) ms_log (0, " [Bit 7] Undefined bit set\n");
/* Data quality flags */
b = fsdh->dq_flags;
ms_log (0, " data quality flags: [%u%u%u%u%u%u%u%u] 8 bits\n",
bit(b,0x01), bit(b,0x02), bit(b,0x04), bit(b,0x08),
bit(b,0x10), bit(b,0x20), bit(b,0x40), bit(b,0x80));
if ( b & 0x01 ) ms_log (0, " [Bit 0] Amplifier saturation detected\n");
if ( b & 0x02 ) ms_log (0, " [Bit 1] Digitizer clipping detected\n");
if ( b & 0x04 ) ms_log (0, " [Bit 2] Spikes detected\n");
if ( b & 0x08 ) ms_log (0, " [Bit 3] Glitches detected\n");
if ( b & 0x10 ) ms_log (0, " [Bit 4] Missing/padded data present\n");
if ( b & 0x20 ) ms_log (0, " [Bit 5] Telemetry synchronization error\n");
if ( b & 0x40 ) ms_log (0, " [Bit 6] A digital filter may be charging\n");
if ( b & 0x80 ) ms_log (0, " [Bit 7] Time tag is questionable\n");
}
ms_log (0, " number of blockettes: %d\n", fsdh->numblockettes);
ms_log (0, " time correction: %ld\n", (long int) fsdh->time_correct);
ms_log (0, " data offset: %d\n", fsdh->data_offset);
ms_log (0, " first blockette offset: %d\n", fsdh->blockette_offset);
} /* Done printing raw header details */
/* Validate and report information in the blockette chain */
if ( fsdh->blockette_offset > 46 && fsdh->blockette_offset < maxreclen )
{
int blkt_offset = fsdh->blockette_offset;
int blkt_count = 0;
int blkt_length;
uint16_t blkt_type;
uint16_t next_blkt;
char *blkt_desc;
/* Traverse blockette chain */
while ( blkt_offset != 0 && blkt_offset < maxreclen )
{
/* Every blockette has a similar 4 byte header: type and next */
memcpy (&blkt_type, record + blkt_offset, 2);
memcpy (&next_blkt, record + blkt_offset+2, 2);
if ( swapflag )
{
ms_gswap2 (&blkt_type);
ms_gswap2 (&next_blkt);
}
/* Print common header fields */
if ( details >= 1 )
{
blkt_desc = ms_blktdesc(blkt_type);
ms_log (0, " BLOCKETTE %u: (%s)\n", blkt_type, (blkt_desc) ? blkt_desc : "Unknown");
ms_log (0, " next blockette: %u\n", next_blkt);
}
blkt_length = ms_blktlen (blkt_type, record + blkt_offset, swapflag);
if ( blkt_length == 0 )
{
ms_log (2, "%s: Unknown blockette length for type %d\n", srcname, blkt_type);
retval++;
}
/* Track end of blockette chain */
endofblockettes = blkt_offset + blkt_length - 1;
/* Sanity check that the blockette is contained in the record */
if ( endofblockettes > maxreclen )
{
ms_log (2, "%s: Blockette type %d at offset %d with length %d does not fix in record (%d)\n",
srcname, blkt_type, blkt_offset, blkt_length, maxreclen);
retval++;
break;
}
if ( blkt_type == 100 )
{
struct blkt_100_s *blkt_100 = (struct blkt_100_s *) (record + blkt_offset + 4);
if ( swapflag )
ms_gswap4 (&blkt_100->samprate);
if ( details >= 1 )
{
ms_log (0, " actual sample rate: %.10g\n", blkt_100->samprate);
if ( details > 1 )
{
b = blkt_100->flags;
ms_log (0, " undefined flags: [%u%u%u%u%u%u%u%u] 8 bits\n",
bit(b,0x01), bit(b,0x02), bit(b,0x04), bit(b,0x08),
bit(b,0x10), bit(b,0x20), bit(b,0x40), bit(b,0x80));
ms_log (0, " reserved bytes (3): %u,%u,%u\n",
blkt_100->reserved[0], blkt_100->reserved[1], blkt_100->reserved[2]);
}
}
}
else if ( blkt_type == 200 )
{
struct blkt_200_s *blkt_200 = (struct blkt_200_s *) (record + blkt_offset + 4);
if ( swapflag )
{
ms_gswap4 (&blkt_200->amplitude);
ms_gswap4 (&blkt_200->period);
ms_gswap4 (&blkt_200->background_estimate);
MS_SWAPBTIME (&blkt_200->time);
}
if ( details >= 1 )
{
ms_log (0, " signal amplitude: %g\n", blkt_200->amplitude);
ms_log (0, " signal period: %g\n", blkt_200->period);
ms_log (0, " background estimate: %g\n", blkt_200->background_estimate);
if ( details > 1 )
{
b = blkt_200->flags;
ms_log (0, " event detection flags: [%u%u%u%u%u%u%u%u] 8 bits\n",
bit(b,0x01), bit(b,0x02), bit(b,0x04), bit(b,0x08),
bit(b,0x10), bit(b,0x20), bit(b,0x40), bit(b,0x80));
if ( b & 0x01 ) ms_log (0, " [Bit 0] 1: Dilatation wave\n");
else ms_log (0, " [Bit 0] 0: Compression wave\n");
if ( b & 0x02 ) ms_log (0, " [Bit 1] 1: Units after deconvolution\n");
else ms_log (0, " [Bit 1] 0: Units are digital counts\n");
if ( b & 0x04 ) ms_log (0, " [Bit 2] Bit 0 is undetermined\n");
ms_log (0, " reserved byte: %u\n", blkt_200->reserved);
}
ms_log (0, " signal onset time: %d,%d,%d:%d:%d.%04d (unused: %d)\n", blkt_200->time.year, blkt_200->time.day,
blkt_200->time.hour, blkt_200->time.min, blkt_200->time.sec, blkt_200->time.fract, blkt_200->time.unused);
ms_log (0, " detector name: %.24s\n", blkt_200->detector);
}
}
else if ( blkt_type == 201 )
{
struct blkt_201_s *blkt_201 = (struct blkt_201_s *) (record + blkt_offset + 4);
if ( swapflag )
{
ms_gswap4 (&blkt_201->amplitude);
ms_gswap4 (&blkt_201->period);
ms_gswap4 (&blkt_201->background_estimate);
MS_SWAPBTIME (&blkt_201->time);
}
if ( details >= 1 )
{
ms_log (0, " signal amplitude: %g\n", blkt_201->amplitude);
ms_log (0, " signal period: %g\n", blkt_201->period);
ms_log (0, " background estimate: %g\n", blkt_201->background_estimate);
b = blkt_201->flags;
ms_log (0, " event detection flags: [%u%u%u%u%u%u%u%u] 8 bits\n",
bit(b,0x01), bit(b,0x02), bit(b,0x04), bit(b,0x08),
bit(b,0x10), bit(b,0x20), bit(b,0x40), bit(b,0x80));
if ( b & 0x01 ) ms_log (0, " [Bit 0] 1: Dilation wave\n");
else ms_log (0, " [Bit 0] 0: Compression wave\n");
if ( details > 1 )
ms_log (0, " reserved byte: %u\n", blkt_201->reserved);
ms_log (0, " signal onset time: %d,%d,%d:%d:%d.%04d (unused: %d)\n", blkt_201->time.year, blkt_201->time.day,
blkt_201->time.hour, blkt_201->time.min, blkt_201->time.sec, blkt_201->time.fract, blkt_201->time.unused);
ms_log (0, " SNR values: ");
for (idx=0; idx < 6; idx++) ms_log (0, "%u ", blkt_201->snr_values[idx]);
ms_log (0, "\n");
ms_log (0, " loopback value: %u\n", blkt_201->loopback);
ms_log (0, " pick algorithm: %u\n", blkt_201->pick_algorithm);
ms_log (0, " detector name: %.24s\n", blkt_201->detector);
}
}
else if ( blkt_type == 300 )
{
struct blkt_300_s *blkt_300 = (struct blkt_300_s *) (record + blkt_offset + 4);
if ( swapflag )
{
MS_SWAPBTIME (&blkt_300->time);
ms_gswap4 (&blkt_300->step_duration);
ms_gswap4 (&blkt_300->interval_duration);
ms_gswap4 (&blkt_300->amplitude);
ms_gswap4 (&blkt_300->reference_amplitude);
}
if ( details >= 1 )
{
ms_log (0, " calibration start time: %d,%d,%d:%d:%d.%04d (unused: %d)\n", blkt_300->time.year, blkt_300->time.day,
blkt_300->time.hour, blkt_300->time.min, blkt_300->time.sec, blkt_300->time.fract, blkt_300->time.unused);
ms_log (0, " number of calibrations: %u\n", blkt_300->numcalibrations);
b = blkt_300->flags;
ms_log (0, " calibration flags: [%u%u%u%u%u%u%u%u] 8 bits\n",
bit(b,0x01), bit(b,0x02), bit(b,0x04), bit(b,0x08),
bit(b,0x10), bit(b,0x20), bit(b,0x40), bit(b,0x80));
if ( b & 0x01 ) ms_log (0, " [Bit 0] First pulse is positive\n");
if ( b & 0x02 ) ms_log (0, " [Bit 1] Calibration's alternate sign\n");
if ( b & 0x04 ) ms_log (0, " [Bit 2] Calibration was automatic\n");
if ( b & 0x08 ) ms_log (0, " [Bit 3] Calibration continued from previous record(s)\n");
ms_log (0, " step duration: %u\n", blkt_300->step_duration);
ms_log (0, " interval duration: %u\n", blkt_300->interval_duration);
ms_log (0, " signal amplitude: %g\n", blkt_300->amplitude);
ms_log (0, " input signal channel: %.3s", blkt_300->input_channel);
if ( details > 1 )
ms_log (0, " reserved byte: %u\n", blkt_300->reserved);
ms_log (0, " reference amplitude: %u\n", blkt_300->reference_amplitude);
ms_log (0, " coupling: %.12s\n", blkt_300->coupling);
ms_log (0, " rolloff: %.12s\n", blkt_300->rolloff);
}
}
else if ( blkt_type == 310 )
{
struct blkt_310_s *blkt_310 = (struct blkt_310_s *) (record + blkt_offset + 4);
if ( swapflag )
{
MS_SWAPBTIME (&blkt_310->time);
ms_gswap4 (&blkt_310->duration);
ms_gswap4 (&blkt_310->period);
ms_gswap4 (&blkt_310->amplitude);
ms_gswap4 (&blkt_310->reference_amplitude);
}
if ( details >= 1 )
{
ms_log (0, " calibration start time: %d,%d,%d:%d:%d.%04d (unused: %d)\n", blkt_310->time.year, blkt_310->time.day,
blkt_310->time.hour, blkt_310->time.min, blkt_310->time.sec, blkt_310->time.fract, blkt_310->time.unused);
if ( details > 1 )
ms_log (0, " reserved byte: %u\n", blkt_310->reserved1);
b = blkt_310->flags;
ms_log (0, " calibration flags: [%u%u%u%u%u%u%u%u] 8 bits\n",
bit(b,0x01), bit(b,0x02), bit(b,0x04), bit(b,0x08),
bit(b,0x10), bit(b,0x20), bit(b,0x40), bit(b,0x80));
if ( b & 0x04 ) ms_log (0, " [Bit 2] Calibration was automatic\n");
if ( b & 0x08 ) ms_log (0, " [Bit 3] Calibration continued from previous record(s)\n");
if ( b & 0x10 ) ms_log (0, " [Bit 4] Peak-to-peak amplitude\n");
if ( b & 0x20 ) ms_log (0, " [Bit 5] Zero-to-peak amplitude\n");
if ( b & 0x40 ) ms_log (0, " [Bit 6] RMS amplitude\n");
ms_log (0, " calibration duration: %u\n", blkt_310->duration);
ms_log (0, " signal period: %g\n", blkt_310->period);
ms_log (0, " signal amplitude: %g\n", blkt_310->amplitude);
ms_log (0, " input signal channel: %.3s", blkt_310->input_channel);
if ( details > 1 )
ms_log (0, " reserved byte: %u\n", blkt_310->reserved2);
ms_log (0, " reference amplitude: %u\n", blkt_310->reference_amplitude);
ms_log (0, " coupling: %.12s\n", blkt_310->coupling);
ms_log (0, " rolloff: %.12s\n", blkt_310->rolloff);
}
}
else if ( blkt_type == 320 )
{
struct blkt_320_s *blkt_320 = (struct blkt_320_s *) (record + blkt_offset + 4);
if ( swapflag )
{
MS_SWAPBTIME (&blkt_320->time);
ms_gswap4 (&blkt_320->duration);
ms_gswap4 (&blkt_320->ptp_amplitude);
ms_gswap4 (&blkt_320->reference_amplitude);
}
if ( details >= 1 )
{
ms_log (0, " calibration start time: %d,%d,%d:%d:%d.%04d (unused: %d)\n", blkt_320->time.year, blkt_320->time.day,
blkt_320->time.hour, blkt_320->time.min, blkt_320->time.sec, blkt_320->time.fract, blkt_320->time.unused);
if ( details > 1 )
ms_log (0, " reserved byte: %u\n", blkt_320->reserved1);
b = blkt_320->flags;
ms_log (0, " calibration flags: [%u%u%u%u%u%u%u%u] 8 bits\n",
bit(b,0x01), bit(b,0x02), bit(b,0x04), bit(b,0x08),
bit(b,0x10), bit(b,0x20), bit(b,0x40), bit(b,0x80));
if ( b & 0x04 ) ms_log (0, " [Bit 2] Calibration was automatic\n");
if ( b & 0x08 ) ms_log (0, " [Bit 3] Calibration continued from previous record(s)\n");
if ( b & 0x10 ) ms_log (0, " [Bit 4] Random amplitudes\n");
ms_log (0, " calibration duration: %u\n", blkt_320->duration);
ms_log (0, " peak-to-peak amplitude: %g\n", blkt_320->ptp_amplitude);
ms_log (0, " input signal channel: %.3s", blkt_320->input_channel);
if ( details > 1 )
ms_log (0, " reserved byte: %u\n", blkt_320->reserved2);
ms_log (0, " reference amplitude: %u\n", blkt_320->reference_amplitude);
ms_log (0, " coupling: %.12s\n", blkt_320->coupling);
ms_log (0, " rolloff: %.12s\n", blkt_320->rolloff);
ms_log (0, " noise type: %.8s\n", blkt_320->noise_type);
}
}
else if ( blkt_type == 390 )
{
struct blkt_390_s *blkt_390 = (struct blkt_390_s *) (record + blkt_offset + 4);
if ( swapflag )
{
MS_SWAPBTIME (&blkt_390->time);
ms_gswap4 (&blkt_390->duration);
ms_gswap4 (&blkt_390->amplitude);
}
if ( details >= 1 )
{
ms_log (0, " calibration start time: %d,%d,%d:%d:%d.%04d (unused: %d)\n", blkt_390->time.year, blkt_390->time.day,
blkt_390->time.hour, blkt_390->time.min, blkt_390->time.sec, blkt_390->time.fract, blkt_390->time.unused);
if ( details > 1 )
ms_log (0, " reserved byte: %u\n", blkt_390->reserved1);
b = blkt_390->flags;
ms_log (0, " calibration flags: [%u%u%u%u%u%u%u%u] 8 bits\n",
bit(b,0x01), bit(b,0x02), bit(b,0x04), bit(b,0x08),
bit(b,0x10), bit(b,0x20), bit(b,0x40), bit(b,0x80));
if ( b & 0x04 ) ms_log (0, " [Bit 2] Calibration was automatic\n");
if ( b & 0x08 ) ms_log (0, " [Bit 3] Calibration continued from previous record(s)\n");
ms_log (0, " calibration duration: %u\n", blkt_390->duration);
ms_log (0, " signal amplitude: %g\n", blkt_390->amplitude);
ms_log (0, " input signal channel: %.3s", blkt_390->input_channel);
if ( details > 1 )
ms_log (0, " reserved byte: %u\n", blkt_390->reserved2);
}
}
else if ( blkt_type == 395 )
{
struct blkt_395_s *blkt_395 = (struct blkt_395_s *) (record + blkt_offset + 4);
if ( swapflag )
MS_SWAPBTIME (&blkt_395->time);
if ( details >= 1 )
{
ms_log (0, " calibration end time: %d,%d,%d:%d:%d.%04d (unused: %d)\n", blkt_395->time.year, blkt_395->time.day,
blkt_395->time.hour, blkt_395->time.min, blkt_395->time.sec, blkt_395->time.fract, blkt_395->time.unused);
if ( details > 1 )
ms_log (0, " reserved bytes (2): %u,%u\n",
blkt_395->reserved[0], blkt_395->reserved[1]);
}
}
else if ( blkt_type == 400 )
{
struct blkt_400_s *blkt_400 = (struct blkt_400_s *) (record + blkt_offset + 4);
if ( swapflag )
{
ms_gswap4 (&blkt_400->azimuth);
ms_gswap4 (&blkt_400->slowness);
ms_gswap4 (&blkt_400->configuration);
}
if ( details >= 1 )
{
ms_log (0, " beam azimuth (degrees): %g\n", blkt_400->azimuth);
ms_log (0, " beam slowness (sec/degree): %g\n", blkt_400->slowness);
ms_log (0, " configuration: %u\n", blkt_400->configuration);
if ( details > 1 )
ms_log (0, " reserved bytes (2): %u,%u\n",
blkt_400->reserved[0], blkt_400->reserved[1]);
}
}
else if ( blkt_type == 405 )
{
struct blkt_405_s *blkt_405 = (struct blkt_405_s *) (record + blkt_offset + 4);
uint16_t firstvalue = blkt_405->delay_values[0]; /* Work on a private copy */
if ( swapflag )
ms_gswap2 (&firstvalue);
if ( details >= 1 )
ms_log (0, " first delay value: %u\n", firstvalue);
}
else if ( blkt_type == 500 )
{
struct blkt_500_s *blkt_500 = (struct blkt_500_s *) (record + blkt_offset + 4);
if ( swapflag )
{
ms_gswap4 (&blkt_500->vco_correction);
MS_SWAPBTIME (&blkt_500->time);
ms_gswap4 (&blkt_500->exception_count);
}
if ( details >= 1 )
{
ms_log (0, " VCO correction: %g%%\n", blkt_500->vco_correction);
ms_log (0, " time of exception: %d,%d,%d:%d:%d.%04d (unused: %d)\n", blkt_500->time.year, blkt_500->time.day,
blkt_500->time.hour, blkt_500->time.min, blkt_500->time.sec, blkt_500->time.fract, blkt_500->time.unused);
ms_log (0, " usec: %d\n", blkt_500->usec);
ms_log (0, " reception quality: %u%%\n", blkt_500->reception_qual);
ms_log (0, " exception count: %u\n", blkt_500->exception_count);
ms_log (0, " exception type: %.16s\n", blkt_500->exception_type);
ms_log (0, " clock model: %.32s\n", blkt_500->clock_model);
ms_log (0, " clock status: %.128s\n", blkt_500->clock_status);
}
}
else if ( blkt_type == 1000 )
{
struct blkt_1000_s *blkt_1000 = (struct blkt_1000_s *) (record + blkt_offset + 4);
char order[40];
/* Calculate record size in bytes as 2^(blkt_1000->rec_len) */
b1000reclen = (unsigned int) 1 << blkt_1000->reclen;
/* Big or little endian? */
if (blkt_1000->byteorder == 0)
strncpy (order, "Little endian", sizeof(order)-1);
else if (blkt_1000->byteorder == 1)
strncpy (order, "Big endian", sizeof(order)-1);
else
strncpy (order, "Unknown value", sizeof(order)-1);
if ( details >= 1 )
{
ms_log (0, " encoding: %s (val:%u)\n",
(char *) ms_encodingstr (blkt_1000->encoding), blkt_1000->encoding);
ms_log (0, " byte order: %s (val:%u)\n",
order, blkt_1000->byteorder);
ms_log (0, " record length: %d (val:%u)\n",
b1000reclen, blkt_1000->reclen);
if ( details > 1 )
ms_log (0, " reserved byte: %u\n", blkt_1000->reserved);
}
/* Save encoding format */
b1000encoding = blkt_1000->encoding;
/* Sanity check encoding format */
if ( ! (b1000encoding >= 0 && b1000encoding <= 5) &&
! (b1000encoding >= 10 && b1000encoding <= 19) &&
! (b1000encoding >= 30 && b1000encoding <= 33) )
{
ms_log (2, "%s: Blockette 1000 encoding format invalid (0-5,10-19,30-33): %d\n", srcname, b1000encoding);
retval++;
}
/* Sanity check byte order flag */
if ( blkt_1000->byteorder != 0 && blkt_1000->byteorder != 1 )
{
ms_log (2, "%s: Blockette 1000 byte order flag invalid (0 or 1): %d\n", srcname, blkt_1000->byteorder);
retval++;
}
}
else if ( blkt_type == 1001 )
{
struct blkt_1001_s *blkt_1001 = (struct blkt_1001_s *) (record + blkt_offset + 4);
if ( details >= 1 )
{
ms_log (0, " timing quality: %u%%\n", blkt_1001->timing_qual);
ms_log (0, " micro second: %d\n", blkt_1001->usec);
if ( details > 1 )
ms_log (0, " reserved byte: %u\n", blkt_1001->reserved);
ms_log (0, " frame count: %u\n", blkt_1001->framecnt);
}
}
else if ( blkt_type == 2000 )
{
struct blkt_2000_s *blkt_2000 = (struct blkt_2000_s *) (record + blkt_offset + 4);
char order[40];
if ( swapflag )
{
ms_gswap2 (&blkt_2000->length);
ms_gswap2 (&blkt_2000->data_offset);
ms_gswap4 (&blkt_2000->recnum);
}
/* Big or little endian? */
if (blkt_2000->byteorder == 0)
strncpy (order, "Little endian", sizeof(order)-1);
else if (blkt_2000->byteorder == 1)
strncpy (order, "Big endian", sizeof(order)-1);
else
strncpy (order, "Unknown value", sizeof(order)-1);
if ( details >= 1 )
{
ms_log (0, " blockette length: %u\n", blkt_2000->length);
ms_log (0, " data offset: %u\n", blkt_2000->data_offset);
ms_log (0, " record number: %u\n", blkt_2000->recnum);
ms_log (0, " byte order: %s (val:%u)\n",
order, blkt_2000->byteorder);
b = blkt_2000->flags;
ms_log (0, " data flags: [%u%u%u%u%u%u%u%u] 8 bits\n",
bit(b,0x01), bit(b,0x02), bit(b,0x04), bit(b,0x08),
bit(b,0x10), bit(b,0x20), bit(b,0x40), bit(b,0x80));
if ( details > 1 )
{
if ( b & 0x01 ) ms_log (0, " [Bit 0] 1: Stream oriented\n");
else ms_log (0, " [Bit 0] 0: Record oriented\n");
if ( b & 0x02 ) ms_log (0, " [Bit 1] 1: Blockette 2000s may NOT be packaged\n");
else ms_log (0, " [Bit 1] 0: Blockette 2000s may be packaged\n");
if ( ! (b & 0x04) && ! (b & 0x08) )
ms_log (0, " [Bits 2-3] 00: Complete blockette\n");
else if ( ! (b & 0x04) && (b & 0x08) )
ms_log (0, " [Bits 2-3] 01: First blockette in span\n");
else if ( (b & 0x04) && (b & 0x08) )
ms_log (0, " [Bits 2-3] 11: Continuation blockette in span\n");
else if ( (b & 0x04) && ! (b & 0x08) )
ms_log (0, " [Bits 2-3] 10: Final blockette in span\n");
if ( ! (b & 0x10) && ! (b & 0x20) )
ms_log (0, " [Bits 4-5] 00: Not file oriented\n");
else if ( ! (b & 0x10) && (b & 0x20) )
ms_log (0, " [Bits 4-5] 01: First blockette of file\n");
else if ( (b & 0x10) && ! (b & 0x20) )
ms_log (0, " [Bits 4-5] 10: Continuation of file\n");
else if ( (b & 0x10) && (b & 0x20) )
ms_log (0, " [Bits 4-5] 11: Last blockette of file\n");
}
ms_log (0, " number of headers: %u\n", blkt_2000->numheaders);
/* Crude display of the opaque data headers */
if ( details > 1 )
ms_log (0, " headers: %.*s\n",
(blkt_2000->data_offset - 15), blkt_2000->payload);
}
}
else
{
ms_log (2, "%s: Unrecognized blockette type: %d\n", srcname, blkt_type);
retval++;
}
/* Sanity check the next blockette offset */
if ( next_blkt && next_blkt <= endofblockettes )
{
ms_log (2, "%s: Next blockette offset (%d) is within current blockette ending at byte %d\n",
srcname, next_blkt, endofblockettes);
blkt_offset = 0;
}
else
{
blkt_offset = next_blkt;
}
blkt_count++;
} /* End of looping through blockettes */
/* Check that the blockette offset is within the maximum record size */
if ( blkt_offset > maxreclen )
{
ms_log (2, "%s: Blockette offset (%d) beyond maximum record length (%d)\n", srcname, blkt_offset, maxreclen);
retval++;
}
/* Check that the data and blockette offsets are within the record */
if ( b1000reclen && fsdh->data_offset > b1000reclen )
{
ms_log (2, "%s: Data offset (%d) beyond record length (%d)\n", srcname, fsdh->data_offset, b1000reclen);
retval++;
}
if ( b1000reclen && fsdh->blockette_offset > b1000reclen )
{
ms_log (2, "%s: Blockette offset (%d) beyond record length (%d)\n", srcname, fsdh->blockette_offset, b1000reclen);
retval++;
}
/* Check that the data offset is beyond the end of the blockettes */
if ( fsdh->numsamples && fsdh->data_offset <= endofblockettes )
{
ms_log (2, "%s: Data offset (%d) is within blockette chain (end of blockettes: %d)\n", srcname, fsdh->data_offset, endofblockettes);
retval++;
}
/* Check that the correct number of blockettes were parsed */
if ( fsdh->numblockettes != blkt_count )
{
ms_log (2, "%s: Specified number of blockettes (%d) not equal to those parsed (%d)\n", srcname, fsdh->numblockettes, blkt_count);
retval++;
}
}
return retval;
} /* End of ms_parse_raw() */
