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/*
Unix SMB/CIFS implementation.
Samba utility functions
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Tim Potter 2000-2001
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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "system/network.h"
/**
* @file
* @brief Socket utility functions
*/
enum SOCK_OPT_TYPES {OPT_BOOL,OPT_INT,OPT_ON};
static const struct {
const char *name;
int level;
int option;
int value;
int opttype;
} socket_options[] = {
{"SO_KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE, 0, OPT_BOOL},
{"SO_REUSEADDR", SOL_SOCKET, SO_REUSEADDR, 0, OPT_BOOL},
{"SO_BROADCAST", SOL_SOCKET, SO_BROADCAST, 0, OPT_BOOL},
#ifdef TCP_NODELAY
{"TCP_NODELAY", IPPROTO_TCP, TCP_NODELAY, 0, OPT_BOOL},
#endif
#ifdef IPTOS_LOWDELAY
{"IPTOS_LOWDELAY", IPPROTO_IP, IP_TOS, IPTOS_LOWDELAY, OPT_ON},
#endif
#ifdef IPTOS_THROUGHPUT
{"IPTOS_THROUGHPUT", IPPROTO_IP, IP_TOS, IPTOS_THROUGHPUT, OPT_ON},
#endif
#ifdef SO_REUSEPORT
{"SO_REUSEPORT", SOL_SOCKET, SO_REUSEPORT, 0, OPT_BOOL},
#endif
#ifdef SO_SNDBUF
{"SO_SNDBUF", SOL_SOCKET, SO_SNDBUF, 0, OPT_INT},
#endif
#ifdef SO_RCVBUF
{"SO_RCVBUF", SOL_SOCKET, SO_RCVBUF, 0, OPT_INT},
#endif
#ifdef SO_SNDLOWAT
{"SO_SNDLOWAT", SOL_SOCKET, SO_SNDLOWAT, 0, OPT_INT},
#endif
#ifdef SO_RCVLOWAT
{"SO_RCVLOWAT", SOL_SOCKET, SO_RCVLOWAT, 0, OPT_INT},
#endif
#ifdef SO_SNDTIMEO
{"SO_SNDTIMEO", SOL_SOCKET, SO_SNDTIMEO, 0, OPT_INT},
#endif
#ifdef SO_RCVTIMEO
{"SO_RCVTIMEO", SOL_SOCKET, SO_RCVTIMEO, 0, OPT_INT},
#endif
{NULL,0,0,0,0}};
/**
Set user socket options.
**/
void set_socket_options(int fd, const char *options)
{
const char **options_list = str_list_make(NULL, options, " \t,");
int j;
if (!options_list)
return;
for (j = 0; options_list[j]; j++) {
const char *tok = options_list[j];
int ret=0,i;
int value = 1;
char *p;
BOOL got_value = False;
if ((p = strchr_m(tok,'='))) {
*p = 0;
value = atoi(p+1);
got_value = True;
}
for (i=0;socket_options[i].name;i++)
if (strequal(socket_options[i].name,tok))
break;
if (!socket_options[i].name) {
DEBUG(0,("Unknown socket option %s\n",tok));
continue;
}
switch (socket_options[i].opttype) {
case OPT_BOOL:
case OPT_INT:
ret = setsockopt(fd,socket_options[i].level,
socket_options[i].option,(char *)&value,sizeof(int));
break;
case OPT_ON:
if (got_value)
DEBUG(0,("syntax error - %s does not take a value\n",tok));
{
int on = socket_options[i].value;
ret = setsockopt(fd,socket_options[i].level,
socket_options[i].option,(char *)&on,sizeof(int));
}
break;
}
if (ret != 0)
DEBUG(0,("Failed to set socket option %s (Error %s)\n",tok, strerror(errno) ));
}
talloc_free(options_list);
}
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