tcp_utils.c File Reference

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Detailed Description

HTTP embedded server library Copyright (C) 2006-2007 Olivier Singla http://mihl.sourceforge.net/.

Definition in file tcp_utils.c.

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Defines
#define	_GNU_SOURCE
Functions
int	tcp_read (SOCKET sockfd, char *buffer, int maxlen)
	TBD.
int	tcp_write (SOCKET sockfd, const char *buff, int buff_len)
	TBD.
void	decode_keys_values (mihl_cnx_t *cnx, char *_request, int *nb_options, char *options_names[], char *options_values[], int maxnb_options, int *nb_variables, char *vars_names[], char *vars_values[], int maxnb_values)
	TBD.
int	mihl_add (mihl_cnx_t *cnx, char const *fmt,...)
	Build HTML page for a given HTTP URL.
int	mihl_send (mihl_cnx_t *cnx, char const *answer, char const *fmt_header,...)
	TBD.
static int	filelength (int fd)
	TBD.
int	read_file (char const *fname, char **file, int *length)
	Read en entire file in memory.

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Define Documentation

#define _GNU_SOURCE

Definition at line 11 of file tcp_utils.c.

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Function Documentation

int tcp_read	(	SOCKET	sockfd,
		char *	buffer,
		int	maxlen
	)

TBD.

Parameters:

	sockfd	TBD
	buffer	TBD
	maxlen	TBD

Returns:

• X
• or -1 if an error occurred (errno is then set).

Definition at line 47 of file tcp_utils.c.

References ERRNO, and Sleep.

Referenced by got_data_for_active_connexion().

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int tcp_write	(	SOCKET	sockfd,
		const char *	buff,
		int	buff_len
	)

TBD.

Parameters:

	sockfd	TBD
	buff	TBD
	buff_len	TBD

Returns:

• X
• or -1 if an error occurred (errno is then set).

Definition at line 104 of file tcp_utils.c.

References ERRNO, and Sleep.

Referenced by mihl_send(), and send_file().

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void decode_keys_values	(	mihl_cnx_t *	cnx,
		char *	_request,
		int *	nb_options,
		char *	options_names[],
		char *	options_values[],
		int	maxnb_options,
		int *	nb_variables,
		char *	vars_names[],
		char *	vars_values[],
		int	maxnb_values
	)

TBD.

Called by: got_data_for_active_connexion

Parameters:

	cnx	opaque context structure as returned by mihl_init()
	_request	TBD
[out]	nb_options	TBD
[out]	options_names	TBD
[out]	options_values	TBD
	maxnb_options	TBD
[out]	nb_variables	TBD
[out]	vars_names	TBD
[out]	vars_values	TBD
	maxnb_values	TBD

Definition at line 156 of file tcp_utils.c.

References mihl_cnx::authorization, mihl_cnxinfo_t::host, mihl_cnx::info, mihl_cnx::is_keep_alive, mihl_cnx::keep_alive, and mihl_cnxinfo_t::user_agent.

Referenced by got_data_for_active_connexion().

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int mihl_add	(	mihl_cnx_t *	cnx,
		char const *	fmt,
			...
	)

Build HTML page for a given HTTP URL.

Used within a C handler function (such as one provide to mihl_handle_get or mihl_handle_post), to build a page content. Once the page will is finished, a call to mihl_add should be done.

Parameters:

	cnx	Opaque pointer, as provided to the C handler function (GET).
	fmt	printf like format and optional arguments to describe the data to add into the page (typically HTML content).
	...	Optional printf like format arguments

Returns:

• 0 if the operation succeeded
• or -1 if an error occurred (errno is then set).

Note:

mihl_add and mihl_send use a dynamic buffer, which is allocated when needed, but only released with mihl_end().

Definition at line 261 of file tcp_utils.c.

References mihl_cnx::html_buffer, mihl_cnx::html_buffer_len, and mihl_cnx::html_buffer_sz.

Referenced by http_data(), http_root(), and page_not_found().

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int mihl_send	(	mihl_cnx_t *	cnx,
		char const *	answer,
		char const *	fmt_header,
			...
	)

TBD.

Parameters:

	cnx	opaque context structure as returned by mihl_init()
[in]	answer	HTTP answer to send, If NULL, will send "HTTP/1.1 200 OK\r\n"
	fmt_header	TBD
	...	TBD

Returns:

• X
• or -1 if an error occurred (errno is then set).

Definition at line 289 of file tcp_utils.c.

References ERRNO, mihl_cnx::html_buffer, mihl_cnx::html_buffer_len, mihl_cnx::sockfd, and tcp_write().

Referenced by http_data(), http_root(), and page_not_found().

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static int filelength

(

int

fd

)

[static]

TBD.

Parameters:

fd

TBD

Returns:

• X
• or -1 if an error occurred (errno is then set).

Definition at line 333 of file tcp_utils.c.

Referenced by read_file().

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int read_file	(	char const *	fname,
		char **	file,
		int *	length
	)

Read en entire file in memory.

The buffer is dynamically allocated (malloc).

Parameters:

	fname	TBD
	file	TBD
	length	TBD

Returns:

• The length of the file
• or -1 if an error occurred (errno is then set).

Definition at line 350 of file tcp_utils.c.

References filelength(), and O_BINARY.

Referenced by send_file().

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