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3.12a Javascript
/* sockopts.c */
/* Set socket options based on contents of ctrl/sockopts.cfg */
/* $Id: sockopts.c,v 1.1.1.1 2018/04/24 16:40:41 root Exp $ */
/****************************************************************************
* @format.tab-size 4 (Plain Text/Source Code File Header) *
* @format.use-tabs true (see http://www.synchro.net/ptsc_hdr.html) *
* *
* Copyright 2000 Rob Swindell - http://www.synchro.net/copyright.html *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* See the GNU General Public License for more details: gpl.txt or *
* http://www.fsf.org/copyleft/gpl.html *
* *
* Anonymous FTP access to the most recent released source is available at *
* ftp://vert.synchro.net, ftp://cvs.synchro.net and ftp://ftp.synchro.net *
* *
* Anonymous CVS access to the development source and modification history *
* is available at cvs.synchro.net:/cvsroot/sbbs, example: *
* cvs -d :pserver:[email protected]:/cvsroot/sbbs login *
* (just hit return, no password is necessary) *
* cvs -d :pserver:[email protected]:/cvsroot/sbbs checkout src *
* *
* For Synchronet coding style and modification guidelines, see *
* http://www.synchro.net/source.html *
* *
* You are encouraged to submit any modifications (preferably in Unix diff *
* format) via e-mail to [email protected] *
* *
* Note: If this box doesn't appear square, then you need to fix your tabs. *
****************************************************************************/
#include "sbbs.h"
typedef struct {
char* name;
int level;
int value;
} sockopt_name;
static const sockopt_name option_names[] = {
{ "TYPE", SOL_SOCKET, SO_TYPE },
{ "DEBUG", SOL_SOCKET, SO_DEBUG },
{ "LINGER", SOL_SOCKET, SO_LINGER },
{ "SNDBUF", SOL_SOCKET, SO_SNDBUF },
{ "RCVBUF", SOL_SOCKET, SO_RCVBUF },
{ "SNDLOWAT", SOL_SOCKET, SO_SNDLOWAT },
{ "RCVLOWAT", SOL_SOCKET, SO_RCVLOWAT },
{ "SNDTIMEO", SOL_SOCKET, SO_SNDTIMEO },
{ "RCVTIMEO", SOL_SOCKET, SO_RCVTIMEO },
{ "REUSEADDR", SOL_SOCKET, SO_REUSEADDR },
{ "KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE },
{ "DONTROUTE", SOL_SOCKET, SO_DONTROUTE },
{ "BROADCAST", SOL_SOCKET, SO_BROADCAST },
{ "OOBINLINE", SOL_SOCKET, SO_OOBINLINE },
#ifdef SO_ACCEPTCONN
{ "ACCEPTCONN", SOL_SOCKET, SO_ACCEPTCONN },
#endif
/* IPPROTO-level socket options */
{ "TCP_NODELAY", IPPROTO_TCP, TCP_NODELAY },
/* The following are platform-specific */
#ifdef TCP_MAXSEG
{ "TCP_MAXSEG", IPPROTO_TCP, TCP_MAXSEG },
#endif
#ifdef TCP_CORK
{ "TCP_CORK", IPPROTO_TCP, TCP_CORK },
#endif
#ifdef TCP_KEEPIDLE
{ "TCP_KEEPIDLE", IPPROTO_TCP, TCP_KEEPIDLE },
#endif
#ifdef TCP_KEEPINTVL
{ "TCP_KEEPINTVL", IPPROTO_TCP, TCP_KEEPINTVL },
#endif
#ifdef TCP_KEEPCNT
{ "TCP_KEEPCNT", IPPROTO_TCP, TCP_KEEPCNT },
#endif
#ifdef TCP_SYNCNT
{ "TCP_SYNCNT", IPPROTO_TCP, TCP_SYNCNT },
#endif
#ifdef TCP_LINGER2
{ "TCP_LINGER2", IPPROTO_TCP, TCP_LINGER2 },
#endif
#ifdef TCP_DEFER_ACCEPT
{ "TCP_DEFER_ACCEPT", IPPROTO_TCP, TCP_DEFER_ACCEPT },
#endif
#ifdef TCP_WINDOW_CLAMP
{ "TCP_WINDOW_CLAMP", IPPROTO_TCP, TCP_WINDOW_CLAMP },
#endif
#ifdef TCP_QUICKACK
{ "TCP_QUICKACK", IPPROTO_TCP, TCP_QUICKACK },
#endif
#ifdef TCP_NOPUSH
{ "TCP_NOPUSH", IPPROTO_TCP, TCP_NOPUSH },
#endif
#ifdef TCP_NOOPT
{ "TCP_NOOPT", IPPROTO_TCP, TCP_NOOPT },
#endif
{ NULL }
};
int DLLCALL sockopt(char* str, int* level)
{
int i;
*level=SOL_SOCKET; /* default option level */
for(i=0;option_names[i].name;i++) {
if(stricmp(str,option_names[i].name)==0) {
*level = option_names[i].level;
return(option_names[i].value);
}
}
if(!isdigit(str[0])) /* unknown option name */
return(-1);
return(strtoul(str,NULL,0));
}
int DLLCALL set_socket_options(scfg_t* cfg, SOCKET sock, char* error)
{
char cfgfile[MAX_PATH+1];
char str[256];
char* p;
char* name;
BYTE* vp;
FILE* fp;
int option;
int level;
int value;
int type;
int result=0;
LINGER linger;
socklen_t len;
/* Set user defined socket options */
sprintf(cfgfile,"%ssockopts.cfg",cfg->ctrl_dir);
if((fp=fopen(cfgfile,"r"))==NULL)
return(0);
len = sizeof(type);
result=getsockopt(sock,SOL_SOCKET,SO_TYPE,(void*)&type,&len);
if(result) {
sprintf(error,"%d getting socket option (TYPE, %d)"
,ERROR_VALUE, SO_TYPE);
return(result);
}
while(!feof(fp)) {
if(!fgets(str,sizeof(str),fp))
break;
name=str;
while(*name && *name<=' ') name++;
if(*name==';' || *name==0) /* blank line or comment */
continue;
p=name;
while(*p && *p>' ') p++;
if(*p) *(p++)=0;
if((option=sockopt(name,&level))==-1)
continue;
if(level==IPPROTO_TCP && type!=SOCK_STREAM)
continue;
while(*p && *p<=' ') p++;
len=sizeof(value);
value=strtol(p,NULL,0);
vp=(BYTE*)&value;
while(*p && *p>' ') p++;
if(*p) p++;
while(*p && *p<=' ') p++;
switch(option) {
case SO_LINGER:
linger.l_onoff = value;
linger.l_linger = (int)strtol(p,NULL,0);
vp=(BYTE*)&linger;
len=sizeof(linger);
break;
case SO_KEEPALIVE:
if(type!=SOCK_STREAM)
continue;
break;
}
#if 0
lprintf("%04d setting socket option: %s to %d", sock, str, value);
#endif
result=setsockopt(sock,level,option,vp,len);
if(result) {
sprintf(error,"%d setting socket option (%s, %d) to %d"
,ERROR_VALUE, name, option, value);
break;
}
#if 0
len = sizeof(value);
getsockopt(sock,level,option,(void*)&value,&len);
lprintf("%04d socket option: %s set to %d", sock, name, value);
#endif
}
fclose(fp);
return(result);
}
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