Webradio Firmware

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Data Structures
struct	HTTP_SCHEME
Functions
int	TcpHostConnect (TCPSOCKET sock, CONST char rhost, u_short port)
	Connect TCP host.
FILE *	TcpStreamAccept (TCPSOCKET sock, u_short port, char mode)
int	TcpGetBuffer (TCPSOCKET sock, char buff, u_int size, u_int *status)
	Get a specified number of characters from TCP socket connection.
int	TcpGetLine (TCPSOCKET sock, char line, u_short size)
	Get line from TCP socket connection.
int	TcpGetTag (TCPSOCKET sock, char tag, int size)
char *	LocateAttributeString (CONST char tag, CONST char name)
int	TcpPutString (TCPSOCKET sock, char str)
	Send complete string via TCP.
int	TcpGetHeaderLines (TCPSOCKET sock, char **array)
	Get header line array from TCP socket connection.
void	TcpReleaseHeaderLines (char **array)
	Release previously allocated memory for the header lines.
HTTP_SCHEME *	HttpSchemeParse (CONST char *uri)
void	HttpSchemeRelease (HTTP_SCHEME *schm)
void	Led0 (int on)
	Switch LED0 on or off.

Function Documentation

int TcpHostConnect	(	TCPSOCKET *	sock,
		CONST char *	rhost,
		u_short	port
	)

Connect TCP host.

Definition at line 68 of file utils.c.

References LOG_WARN, LogMsg(), proxy, HTTP_PROXY::proxy_host, and HTTP_PROXY::proxy_port.

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FILE* TcpStreamAccept	(	TCPSOCKET *	sock,
		u_short	port,
		char *	mode
	)

Definition at line 92 of file utils.c.

References LOG_WARN, and LogMsg().

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int TcpGetBuffer	(	TCPSOCKET *	sock,
		char *	buff,
		u_int	size,
		u_int *	status
	)

Get a specified number of characters from TCP socket connection.

The low level NutTcpReceive() routine may return less than the number of bytes specified. This routine makes sure, that the complete buffer is filled. However, an additional pointer to a status is passed to this routine. If the status changes, the routine will be aborted.

Any TCP receive timeout is ignored, but required in order to detect status changes.

Parameters:

	sock	Socket descriptor. This pointer must have been retrieved by calling NutTcpCreateSocket(). In addition a connection must have been established by calling NutTcpConnect() or NutTcpAccept().
	buff	Pointer to the buffer.
	size	Size of the buffer.
	status	Pointer to a status.

Returns:: 0 if the buffer is filled. Otherwise -1 is returned.

Definition at line 143 of file utils.c.

int TcpGetLine	(	TCPSOCKET *	sock,
		char *	line,
		u_short	size
	)

Get line from TCP socket connection.

ASCII codes below 32 or above 127 are discarded.

Parameters:

	sock	Socket descriptor. This pointer must have been retrieved by calling NutTcpCreateSocket(). In addition a connection must have been established by calling NutTcpConnect() or NutTcpAccept().
	line	Pointer to the buffer that receives the string.
	size	Size of the buffer. If the received line doesn't fit, then remaining characters will be discarded.

Returns:: Number of characters stored in the line buffer or -1 in case of an error or timeout.

Definition at line 261 of file utils.c.

int TcpGetTag	(	TCPSOCKET *	sock,
		char *	tag,
		int	size
	)

Definition at line 159 of file utils.c.

char* LocateAttributeString	(	CONST char *	tag,
		CONST char *	name
	)

Definition at line 209 of file utils.c.

int TcpPutString	(	TCPSOCKET *	sock,
		char *	str
	)

Send complete string via TCP.

The low level NutTcpSend() routine limits the number of bytes to the maximum segment size of the connection. This routine makes sure, that the complete string is transmitted.

Parameters:

	sock	Socket descriptor. This pointer must have been retrieved by calling NutTcpCreateSocket(). In addition a connection must have been established by calling NutTcpConnect() or NutTcpAccept().
	str	Pointer to a buffer containing the string to send.

Returns:: 0 on success. Otherwise -1 is returned.

Definition at line 301 of file utils.c.

int TcpGetHeaderLines	(	TCPSOCKET *	sock,
		char ***	array
	)

Get header line array from TCP socket connection.

Receives lines from a TCP stream until the first empty line appears and stores all lines in an array of strings. The empty line is not stored, but the last pointer of the array is set to NULL.

The routine allocates the array and all string. The caller should use TcpReleaseHeaderLines() to release all allocated memory.

Parameters:

	sock	Socket descriptor. This pointer must have been retrieved by calling NutTcpCreateSocket(). In addition a connection must have been established by calling NutTcpConnect() or NutTcpAccept().
	array	Pointer to a string array pointer, which receives the address of the newly allocated string array. If no non-empty lines were received or if an error occured, then the string array pointer will be set to NULL.