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/* /Net/dxcern/userd/timbl/hypertext/WWW/Library/src/HTTCP.html
GENERIC TCP/IP COMMUNICATION
This module has the common code for handling TCP/IP connections etc.
*/
#ifndef HTTCP_H
#define HTTCP_H
#ifndef HTUTILS_H
#include <HTUtils.h>
#endif
/* Produce a string for an internet address
** ---------------------------------------
**
** On exit:
** returns a pointer to a static string which must be copied if
** it is to be kept.
*/
extern CONST char * HTInetString PARAMS((struct sockaddr_in* mysin));
/* Encode INET status (as in sys/errno.h) inet_status()
** ------------------
**
** On entry:
** where gives a description of what caused the error
** global errno gives the error number in the unix way.
**
** On return:
** returns a negative status in the unix way.
*/
#if defined(__STDC__) || defined(__BORLANDC__) || defined(_MSC_VER)
extern int HTInetStatus(char *where);
#else
extern int HTInetStatus();
#endif
/* Publicly accessible variables
*/
/* extern struct sockaddr_in HTHostAddress; */
/* The internet address of the host */
/* Valid after call to HTHostName() */
/* Parse a cardinal value parse_cardinal()
** ----------------------
**
** On entry:
** *pp points to first character to be interpreted, terminated by
** non 0..9 character.
** *pstatus points to status already valid,
** maxvalue gives the largest allowable value.
**
** On exit:
** *pp points to first unread character,
** *pstatus points to status updated iff bad
*/
extern unsigned int HTCardinal PARAMS((int *pstatus,
char **pp,
unsigned int max_value));
/* Check whether string is a valid Internet hostname
** -------------------------------------------------
*/
extern BOOL valid_hostname PARAMS((CONST char * name));
/* Resolve an internet hostname, like gethostbyname
** ------------------------------------------------
**
** On entry,
** str points to the given host name, not numeric address,
** without colon or port number.
**
** On exit,
** returns a pointer to a struct hostent in static storage,
** or NULL in case of error or user interruption.
**
** The interface is intended to be the same as for gethostbyname(),
** but additional status is returned in lynx_nsl_status.
*/
extern int lynx_nsl_status;
#if defined(__DJGPP__) && !defined(WATT32)
#define LYGetHostByName(host) resolv(host) /* we'll use it the same way */
#else
extern struct hostent * LYGetHostByName PARAMS((
CONST char * str));
#endif
/* Parse an internet node address and port
** ---------------------------------------
**
** On entry:
** str points to a string with a node name or number,
** with optional trailing colon and port number.
** sin points to the binary internet or decnet address field.
**
** On exit:
** *sin is filled in. If no port is specified in str, that
** field is left unchanged in *sin.
*/
#if defined(__STDC__) || defined(__BORLANDC__) || defined(_MSC_VER)
extern int HTParseInet(struct sockaddr_in * mysin, CONST char * str);
/*!! had to change this to get it to compile. CTB */
#else
extern int HTParseInet();
#endif
/* Get Name of This Machine
** ------------------------
**
*/
extern CONST char * HTHostName NOPARAMS;
extern int HTDoConnect PARAMS((
CONST char * url,
char * protocol,
int default_port,
int * s));
extern int HTDoRead PARAMS((
int fildes,
void * buf,
unsigned nbyte));
#endif /* HTTCP_H */
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