danog/PHPStruct
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Fixing bugs...

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This commit is contained in:
danogentili 2016-07-06 14:24:07 +02:00
parent b8d7f7a77d
commit a5b86fd521
2 changed files with 21 additions and 17 deletions
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5
example.php
View File

@ -1,6 +1,7 @@
<?php
require('vendor/autoload.php');
//require('vendor/autoload.php');
require('lib/danog/PHP/Struct.php');
$struct = new danog\PHP\Struct();
echo bin2hex($struct->pack("cc", "a", "s"));
echo bin2hex($struct->pack("cxc", "a", "s"));

33
lib/danog/PHP/Struct.php
View File

@ -102,7 +102,6 @@ class Struct {
* @return Encoded data
*/
public function pack($format, ...$data) {
//var_dump("Pack called with ", $format, $data);
$result = null; // Data to return
$packcommand = $this->parseformat($format, $this->array_total_strlen($data), $this->array_each_strlen($data)); // Get pack parameters
@ -117,6 +116,7 @@ class Struct {
if(isset($command["modifiers"]["BIG_ENDIAN"]) && ((!$this->BIG_ENDIAN && $command["modifiers"]["BIG_ENDIAN"]) || ($this->BIG_ENDIAN && !$command["modifiers"]["BIG_ENDIAN"]))) $curresult = strrev($curresult); // Reverse if wrong endianness
$result .= $curresult;
}
restore_error_handler();
if(strlen($result) != $this->calcsize($format)) {
throw new StructException("Length of generated data is different from length calculated using format string.");
@ -173,27 +173,26 @@ class Struct {
*/
public function parseformat($format, $count, $arraycount = null) {
$formatcharcount = 0; // Current element to decode/encode
$realformatcharcount = 0; // Current element to decode/encode (for real)
$charcount = 0; // Current char
$result = []; // Array with the results
foreach (str_split($format) as $offset => $currentformatchar) { // Current format char
if(!isset($result[$formatcharcount]) || !is_array($result[$formatcharcount])) {
$result[$formatcharcount] = []; // Create array for current element
if(!isset($result[$realformatcharcount]) || !is_array($result[$realformatcharcount])) {
$result[$realformatcharcount] = []; // Create array for current element
}
$result[$formatcharcount]["count"] = 0; // Set the count of the objects to decode for the current format char to 0
$result[$realformatcharcount]["count"] = 0; // Set the count of the objects to decode for the current format char to 0
if(isset($this->MODIFIERS[$currentformatchar])) { // If current format char is a modifier
$result[$formatcharcount]["modifiers"] = $this->MODIFIERS[$currentformatchar]; // Set the modifiers for the current format char
} else if(is_int($currentformatchar) && ($currentformatchar > 0 || $currentformatchar <= 9)) {
$result[$formatcharcount]["count"] .= $currentformatchar; // Set the count for the current format char
} else if(isset($this->FORMATS[$currentformatchar])) {
if(!isset($result[$formatcharcount]["count"]) || $result[$formatcharcount]["count"] == 0 || $result[$formatcharcount]["count"] == null) {
$result[$formatcharcount]["count"] = 1; // Set count to 1 if something's wrong.
if(isset($this->MODIFIERS[$realformatcharcount])) { // If current format char is a modifier
$result[$realformatcharcount]["modifiers"] = $this->MODIFIERS[$realformatcharcount]; // Set the modifiers for the current format char
} else if(is_int($realformatcharcount) && ($realformatcharcount > 0 || $realformatcharcount <= 9)) {
$result[$realformatcharcount]["count"] .= $realformatcharcount; // Set the count for the current format char
} else if(isset($this->FORMATS[$realformatcharcount])) {
if(!isset($result[$realformatcharcount]["count"]) || $result[$realformatcharcount]["count"] == 0 || $result[$realformatcharcount]["count"] == null) {
$result[$realformatcharcount]["count"] = 1; // Set count to 1 if something's wrong.
}
$result[$formatcharcount]["format"] = $currentformatchar; // Set format
$charcount += $result[$formatcharcount]["count"];
$result[$realformatcharcount]["format"] = $realformatcharcount; // Set format
if($arraycount !== null) {
if($formatcharcount + 1 > count($arraycount)) {
throw new StructException("Format string too long or not enough parameters at offset ".$offset.".");
@ -202,10 +201,14 @@ class Struct {
throw new StructException("Format string too long for offset ".$offset.".");
}
}
if($currentformatchar != "x") {
$formatcharcount++;
$charcount += $result[$realformatcharcount]["count"];
}
if($charcount > $count) {
throw new StructException("Format string too long or not enough chars (total char count is bigger than provided char count).");
}
$formatcharcount++; // Increase element count
$realformatcharcount++; // Increase element count
} else throw new StructException("Unkown format or modifier supplied (".$currentformatchar." at offset ".$offset.").");