gopher.c File Reference

#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include "elinks.h"
#include "cache/cache.h"
#include "intl/libintl.h"
#include "main/module.h"
#include "network/connection.h"
#include "network/socket.h"
#include "protocol/common.h"
#include "protocol/gopher/gopher.h"
#include "protocol/protocol.h"
#include "protocol/uri.h"
#include "util/conv.h"
#include "util/memory.h"
#include "util/string.h"

Include dependency graph for gopher.c:

Data Structures
struct	gopher_entity_info
struct	gopher_connection_info

Macros
#define	DEFAULT_GOPHER_ENTITY   GOPHER_DIRECTORY
#define	entity_needs_gopher_access(entity)

Typedefs
typedef char	gopher_entity_T

Enumerations

enum

gopher_entity {   GOPHER_UNKNOWN = 0 , GOPHER_FILE = '0' , GOPHER_DIRECTORY = '1' , GOPHER_CSO = '2' ,   GOPHER_ERROR = '3' , GOPHER_MACBINHEX = '4' , GOPHER_PCBINARY = '5' , GOPHER_UUENCODED = '6' ,   GOPHER_INDEX = '7' , GOPHER_TELNET = '8' , GOPHER_BINARY = '9' , GOPHER_GIF = 'g' ,   GOPHER_HTML = 'h' , GOPHER_CHTML = 'H' , GOPHER_MIME = 'm' , GOPHER_SOUND = 's' ,   GOPHER_WWW = 'w' , GOPHER_IMAGE = 'I' , GOPHER_TN3270 = 'T' , GOPHER_INFO = 'i' ,   GOPHER_DUPLICATE = '+' , GOPHER_PLUS_IMAGE = ':' , GOPHER_PLUS_MOVIE = ';' , GOPHER_PLUS_SOUND = '<' ,   GOPHER_PLUS_PDF = 'P' }

Functions
static struct gopher_entity_info *	get_gopher_entity_info (gopher_entity_T type)
static const char *	get_gopher_entity_description (gopher_entity_T type)
static void	add_uri_decoded (struct string *command, char *string, int length, int replace_plus)
static struct connection_state	init_gopher_index_cache_entry (struct connection *conn)
static struct connection_state	add_gopher_command (struct connection *conn, struct string *command, gopher_entity_T entity, char *selector, int selectorlen)
static struct connection_state	init_gopher_connection_info (struct connection *conn)
static void	add_gopher_link (struct string *buffer, const char *text, const char *addr)
static void	add_gopher_search_field (struct string *buffer, const char *text, const char *addr)
static void	add_gopher_description (struct string *buffer, gopher_entity_T entity)
static void	encode_selector_string (struct string *buffer, char *selector)
void	add_gopher_menu_line (struct string *buffer, char *line)
char *	get_gopher_line_end (char *data, int datalen)
static char *	check_gopher_last_line (char *line, char *end)
static struct connection_state	read_gopher_directory_data (struct connection *conn, struct read_buffer *rb)
static struct cache_entry *	init_gopher_cache_entry (struct connection *conn)
static void	read_gopher_response_data (struct socket *socket, struct read_buffer *rb)
static void	send_gopher_command (struct socket *socket)
void	gopher_protocol_handler (struct connection *conn)

Variables
union option_info	gopher_options []
struct module	gopher_protocol_module
static struct gopher_entity_info	gopher_entity_info []

Macro Definition Documentation

DEFAULT_GOPHER_ENTITY

#define DEFAULT_GOPHER_ENTITY   GOPHER_DIRECTORY

entity_needs_gopher_access

#define entity_needs_gopher_access

(

entity

)

Value:

   ((entity) != GOPHER_TELNET    \
    && (entity) != GOPHER_TN3270    \
    && (entity) != GOPHER_WWW)

Typedef Documentation

gopher_entity_T

typedef char gopher_entity_T

Enumeration Type Documentation

gopher_entity

enum gopher_entity

Enumerator
GOPHER_UNKNOWN
GOPHER_FILE
GOPHER_DIRECTORY
GOPHER_CSO
GOPHER_ERROR
GOPHER_MACBINHEX
GOPHER_PCBINARY
GOPHER_UUENCODED
GOPHER_INDEX
GOPHER_TELNET
GOPHER_BINARY
GOPHER_GIF
GOPHER_HTML
GOPHER_CHTML
GOPHER_MIME
GOPHER_SOUND
GOPHER_WWW
GOPHER_IMAGE
GOPHER_TN3270
GOPHER_INFO
GOPHER_DUPLICATE
GOPHER_PLUS_IMAGE
GOPHER_PLUS_MOVIE
GOPHER_PLUS_SOUND
GOPHER_PLUS_PDF

Function Documentation

add_gopher_command()

struct connection_state add_gopher_command ( struct connection * conn, struct string * command, gopher_entity_T entity, char * selector, int selectorlen )

static

add_gopher_description()

void add_gopher_description ( struct string * buffer, gopher_entity_T entity )

static

add_gopher_link()

void add_gopher_link ( struct string * buffer, const char * text, const char * addr )

static

add_gopher_menu_line()

void add_gopher_menu_line	(	struct string *	buffer,
		char *	line )

add_gopher_search_field()

void add_gopher_search_field ( struct string * buffer, const char * text, const char * addr )

static

add_uri_decoded()

void add_uri_decoded ( struct string * command, char * string, int length, int replace_plus )

static

check_gopher_last_line()

char * check_gopher_last_line ( char * line, char * end )

static

encode_selector_string()

void encode_selector_string ( struct string * buffer, char * selector )

static

get_gopher_entity_description()

const char * get_gopher_entity_description ( gopher_entity_T type )

static

get_gopher_entity_info()

struct gopher_entity_info * get_gopher_entity_info ( gopher_entity_T type )

static

get_gopher_line_end()

char * get_gopher_line_end	(	char *	data,
		int	datalen )

gopher_protocol_handler()

void gopher_protocol_handler

(

struct connection *

conn

)

init_gopher_cache_entry()

struct cache_entry * init_gopher_cache_entry ( struct connection * conn )

static

init_gopher_connection_info()

struct connection_state init_gopher_connection_info ( struct connection * conn )

static

init_gopher_index_cache_entry()

struct connection_state init_gopher_index_cache_entry ( struct connection * conn )

static

read_gopher_directory_data()

struct connection_state read_gopher_directory_data ( struct connection * conn, struct read_buffer * rb )

static

read_gopher_response_data()

void read_gopher_response_data ( struct socket * socket, struct read_buffer * rb )

static

send_gopher_command()

void send_gopher_command ( struct socket * socket )

static

Variable Documentation

gopher_entity_info

struct gopher_entity_info gopher_entity_info[]

static

Initial value:

= {
   { GOPHER_BINARY,  "    (BINARY)",   NULL           },
   { GOPHER_CHTML,      "     (CHTML)",   "text/html"       },
   { GOPHER_CSO,     "       (CSO)",   "text/html"       },
   { GOPHER_DIRECTORY,  " (DIRECTORY)",   "text/html"       },
   { GOPHER_FILE,    "      (FILE)",   NULL     },
   { GOPHER_GIF,     " (GIF IMAGE)",   "image/gif"       },
   { GOPHER_HTML,    "      (HTML)",   "text/html"       },
   { GOPHER_IMAGE,      "     (IMAGE)",   NULL     },
   { GOPHER_INDEX,      "     (INDEX)",   "text/html"       },
   { GOPHER_MACBINHEX,  "(BINARY HEX)",   "application/octet-stream" },
   { GOPHER_MIME,    "      (MIME)",   "application/octet-stream" },
   { GOPHER_PCBINARY,   "  (PCBINARY)",   "application/octet-stream" },
   { GOPHER_PLUS_IMAGE, "    (IMAGE+)",   NULL     },
   { GOPHER_PLUS_MOVIE, "     (MOVIE)",   "video/mpeg"         },
   { GOPHER_PLUS_PDF,   "       (PDF)",   "application/pdf"    },
   { GOPHER_PLUS_SOUND, "    (SOUND+)",   "audio/basic"        },
   { GOPHER_SOUND,      "     (SOUND)",   "audio/basic"        },
   { GOPHER_TELNET,  "    (TELNET)",   NULL           },
   { GOPHER_TN3270,  "    (TN3270)",   NULL           },
   { GOPHER_UUENCODED,  " (UUENCODED)",   "application/octet-stream" },
   { GOPHER_WWW,     "(W3 ADDRESS)",   NULL           },
 
   { GOPHER_INFO,    "            ",   NULL           },
   { GOPHER_ERROR,      NULL,    NULL           },
   
   { GOPHER_UNKNOWN, "            ",   "application/octet-stream" },
}

gopher_options

union option_info gopher_options[]

Initial value:

= {
   INIT_OPT_TREE("protocol", N_("Gopher"),
      "gopher", OPT_ZERO,
      N_("Gopher specific options.")),
 
 
 
 
 
 
 
 
 
   NULL_OPTION_INFO,
}

gopher_protocol_module

struct module gopher_protocol_module

Initial value:

= struct_module(
         N_("Gopher"),
         gopher_options,
         NULL,
      NULL,
         NULL,
         NULL,
         NULL,
      NULL
)