/*								     HTTrans.c**	TRANSPORT LAYER MANAGER****	(c) COPYRIGHT MIT 1995.**	Please first read the full copyright statement in the file COPYRIGH.**	@(#) $Id: HTTrans.c,v 2.8 1999/04/04 00:09:14 frystyk Exp $**** HISTORY:**	Marts 96 HFN	Written*//* Library Include files */#include "wwwsys.h"#include "WWWUtil.h"#include "HTParse.h"#include "HTReq.h"#include "HTIOStream.h"#include "HTTrans.h"					 /* Implemented here */PRIVATE HTList * transports = NULL;         /* List of registered transports *//* --------------------------------------------------------------------------*//***	Register a Transport module*/PUBLIC BOOL HTTransport_add (const char *		name,			     HTTransportMode		mode,			     HTInput_new *		get_input,			     HTOutput_new *		get_output){    if (name && (get_input || get_output)) {	HTTransport * tp;	if ((tp = (HTTransport *) HT_CALLOC(1, sizeof(HTTransport))) == NULL)	    HT_OUTOFMEM("HTTransport_add");	StrAllocCopy(tp->name, name);	{	    char *ptr = tp->name;	    while ((*ptr = TOLOWER(*ptr))) ptr++;	}	tp->mode = mode;	tp->input_new = get_input;	tp->output_new = get_output;	if (!transports) transports = HTList_new();	HTTRACE(CORE_TRACE, "Transport... Adding `%s'\n" _ name);	return HTList_addObject(transports, (void *) tp);    } else HTTRACE(CORE_TRACE, "Transport... Can't add this...\n");    return NO;}/***	Deletes a Transport module*/PUBLIC BOOL HTTransport_delete (const char * name){    if (transports) {	HTList *cur = transports;	HTTransport *pres;	while ((pres = (HTTransport *) HTList_nextObject(cur))) {	    if (!strcmp(pres->name, name)) {		BOOL status = HTList_removeObject(transports, (void *) pres);		HT_FREE(pres->name);		HT_FREE(pres);		return status;	    }	}    }    return NO;}/***	Delete the list of registered transports. This is called from**	within HTLibTerminate.*/PUBLIC BOOL HTTransport_deleteAll (void){    if (transports) {	HTList * cur = transports;	HTTransport * pres;	while ((pres = (HTTransport *) HTList_nextObject(cur))) {	    HT_FREE(pres->name);	    HT_FREE(pres);	}	HTList_delete(transports);	transports = NULL;	return YES;    }    return NO;}/***	Search registered transports to find a suitable transport object.**	Return transport object or NULL*/PUBLIC HTTransport * HTTransport_find (HTRequest * request, const char * name){    if (name) {	HTList * cur = transports;	HTTransport * pres;	if (cur) {	    while ((pres = (HTTransport *) HTList_nextObject(cur))) {		if (!strcmp(pres->name, name)) return pres;	    }	}	if (request)	    HTRequest_addError(request, ERR_FATAL, NO, HTERR_CLASS, (char *) name,			       (int) strlen(name), "HTTransport_find");    }    return NULL;}PUBLIC HTTransportMode HTTransport_mode (HTTransport * tp){    return (tp ? tp->mode : HT_TP_SINGLE);}PUBLIC BOOL HTTransport_setMode (HTTransport * tp, HTTransportMode mode){    if (tp) {        tp->mode = mode;        return YES;    }    return NO;}