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/*
dbench version 2
Copyright (C) Andrew Tridgell 1999
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "dbench.h"
/****************************************************************************
open a socket of the specified type, port and address for incoming data
****************************************************************************/
int open_socket_in(int type, int port)
{
struct sockaddr_in sock;
int res;
int one=1;
memset((char *)&sock,0, sizeof(sock));
sock.sin_port = htons(port);
sock.sin_family = AF_INET;
sock.sin_addr.s_addr = 0;
res = socket(AF_INET, type, 0);
if (res == -1) {
fprintf(stderr, "socket failed\n"); return -1;
}
setsockopt(res,SOL_SOCKET,SO_REUSEADDR,(char *)&one,sizeof(one));
/* now we've got a socket - we need to bind it */
if (bind(res, (struct sockaddr * ) &sock,sizeof(sock)) < 0) {
return(-1);
}
set_socket_options(res, options.tcp_options);
return res;
}
/* open a socket to a tcp remote host with the specified port
based on code from Warren */
int open_socket_out(const char *host, int port)
{
int type = SOCK_STREAM;
struct sockaddr_in sock_out;
int res;
struct hostent *hp;
res = socket(PF_INET, type, 0);
if (res == -1) {
return -1;
}
hp = gethostbyname(host);
if (!hp) {
fprintf(stderr,"unknown host: %s\n", host);
return -1;
}
memcpy(&sock_out.sin_addr, hp->h_addr, hp->h_length);
sock_out.sin_port = htons(port);
sock_out.sin_family = PF_INET;
set_socket_options(res, options.tcp_options);
if (connect(res,(struct sockaddr *)&sock_out,sizeof(sock_out))) {
close(res);
fprintf(stderr,"failed to connect to %s - %s\n",
host, strerror(errno));
return -1;
}
return res;
}
enum SOCK_OPT_TYPES {OPT_BOOL,OPT_INT,OPT_ON};
static const struct
{
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_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, char *options)
{
char tok[200];
while (next_token(&options,tok," \t,"))
{
int ret=0,i;
int value = 1;
char *p;
BOOL got_value = False;
if ((p = strchr(tok,'=')))
{
*p = 0;
value = atoi(p+1);
got_value = True;
}
for (i=0;socket_options[i].name;i++)
if (strcasecmp(socket_options[i].name,tok)==0)
break;
if (!socket_options[i].name)
{
fprintf(stderr, "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)
fprintf(stderr,"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)
fprintf(stderr, "Failed to set socket option %s\n",tok);
}
}
int read_sock(int s, char *buf, int size)
{
int total=0;
while (size) {
int r = recv(s, buf, size, MSG_WAITALL);
if (r <= 0) {
if (r == -1) perror("recv");
break;
}
buf += r;
size -= r;
total += r;
}
return total;
}
int write_sock(int s, char *buf, int size)
{
int total=0;
while (size) {
int r = send(s, buf, size, 0);
if (r <= 0) {
if (r == -1) perror("send");
break;
}
buf += r;
size -= r;
total += r;
}
return total;
}
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