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Top Forums Shell Programming and Scripting Extract sequences of bytes from binary for differents blocks Post 302844238 by ahamed101 on Saturday 17th of August 2013 02:31:38 PM
Old 08-17-2013
Well, you said 0x80, 0x81 etc will be preceded by 0x03 and I dont see that pattern. Only 0x80 is preceded by 0x03 and hence it is printed.

--ahamed
 

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SOCKET_SENDTO(3)							 1							  SOCKET_SENDTO(3)

socket_sendto - Sends a message to a socket, whether it is connected or not

SYNOPSIS
int socket_sendto (resource $socket, string $buf, int $len, int $flags, string $addr, [int $port]) DESCRIPTION
The function socket_sendto(3) sends $len bytes from $buf through the socket $socket to the $port at the address $addr. PARAMETERS
o $socket - A valid socket resource created using socket_create(3). o $buf - The sent data will be taken from buffer $buf. o $len -$len bytes from $buf will be sent. o $flags - The value of $flags can be any combination of the following flags, joined with the binary OR ( |) operator. Possible values for $flags +--------------+---------------------------------------------------+ | | | | MSG_OOB | | | | | | | Send OOB (out-of-band) data. | | | | | | | | MSG_EOR | | | | | | | Indicate a record mark. The sent data completes | | | the record. | | | | | | | | MSG_EOF | | | | | | | Close the sender side of the socket and include | | | an appropriate notification of this at the end of | | | the sent data. The sent data completes the trans- | | | action. | | | | | | | |MSG_DONTROUTE | | | | | | | Bypass routing, use direct interface. | | | | +--------------+---------------------------------------------------+ o $addr - IP address of the remote host. o $port -$port is the remote port number at which the data will be sent. RETURN VALUES
socket_sendto(3) returns the number of bytes sent to the remote host, or FALSE if an error occurred. EXAMPLES
Example #1 socket_sendto(3) Example <?php $sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP); $msg = "Ping !"; $len = strlen($msg); socket_sendto($sock, $msg, $len, 0, '127.0.0.1', 1223); socket_close($sock); ?> SEE ALSO
socket_send(3). PHP Documentation Group SOCKET_SENDTO(3)
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