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Adjust the header size calculations.

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This commit is contained in:
Jef Driesen 2012-04-22 22:24:48 +02:00
parent 414a8053d5
commit 2fe695d38e
1 changed files with 29 additions and 16 deletions
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45
src/oceanic_atom2_parser.c
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@ -245,19 +245,26 @@ oceanic_atom2_parser_get_field (parser_t *abstract, parser_field_type_t type, un
const unsigned char *data = abstract->data;
unsigned int size = abstract->size;
unsigned int length = 11 * PAGESIZE / 2;
unsigned int header = 4 * PAGESIZE;
unsigned int footer = size - PAGESIZE;
// Get the total amount of bytes before and after the profile data.
unsigned int headersize = 9 * PAGESIZE / 2;
unsigned int footersize = 2 * PAGESIZE / 2;
if (parser->model == DATAMASK || parser->model == COMPUMASK ||
parser->model == GEO || parser->model == GEO20 ||
parser->model == VEO20 || parser->model == VEO30) {
length -= PAGESIZE;
header -= PAGESIZE;
headersize -= PAGESIZE;
} else if (parser->model == VT4 || parser->model == VT41) {
headersize += PAGESIZE;
} else if (parser->model == ATOM1) {
headersize -= 2 * PAGESIZE;
}
if (size < length)
if (size < headersize + footersize)
return PARSER_STATUS_ERROR;
// Get the offset to the header and footer sample.
unsigned int header = headersize - PAGESIZE / 2;
unsigned int footer = size - footersize;
if (!parser->cached) {
sample_statistics_t statistics = SAMPLE_STATISTICS_INITIALIZER;
parser_status_t rc = oceanic_atom2_parser_samples_foreach (
@ -317,19 +324,25 @@ oceanic_atom2_parser_samples_foreach (parser_t *abstract, sample_callback_t call
const unsigned char *data = abstract->data;
unsigned int size = abstract->size;
unsigned int header = 4 * PAGESIZE;
// Get the total amount of bytes before and after the profile data.
unsigned int headersize = 9 * PAGESIZE / 2;
unsigned int footersize = 2 * PAGESIZE / 2;
if (parser->model == DATAMASK || parser->model == COMPUMASK ||
parser->model == GEO || parser->model == GEO20 ||
parser->model == VEO20 || parser->model == VEO30)
header -= PAGESIZE;
else if (parser->model == VT4 || parser->model == VT41)
header += PAGESIZE;
else if (parser->model == ATOM1)
header -= 2 * PAGESIZE;
parser->model == VEO20 || parser->model == VEO30) {
headersize -= PAGESIZE;
} else if (parser->model == VT4 || parser->model == VT41) {
headersize += PAGESIZE;
} else if (parser->model == ATOM1) {
headersize -= 2 * PAGESIZE;
}
if (size < header + 3 * PAGESIZE / 2)
if (size < headersize + footersize)
return PARSER_STATUS_ERROR;
// Get the offset to the header sample.
unsigned int header = headersize - PAGESIZE / 2;
unsigned int time = 0;
unsigned interval = 0;
switch (data[0x17] & 0x03) {
@ -372,8 +385,8 @@ oceanic_atom2_parser_samples_foreach (parser_t *abstract, sample_callback_t call
}
unsigned int complete = 1;
unsigned int offset = header + PAGESIZE / 2;
while (offset + samplesize <= size - PAGESIZE) {
unsigned int offset = headersize;
while (offset + samplesize <= size - footersize) {
parser_sample_value_t sample = {0};
// Ignore empty samples.