rendered paste body#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/sctp.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/poll.h>
#include <sys/time.h>
#include <signal.h>
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
#include <sys/uio.h>
#include <sys/sysinfo.h>
#include "paramd.h"
#define HOST_BUF_LEN 512
void get_net_x(netstat *ns)
{
unsigned long long tx_rate;
unsigned long long rx_rate;
FILE *fd;
char * buffer = malloc(HOST_BUF_LEN);
memset(buffer,0 , HOST_BUF_LEN);
char *ptr;
if ((fd = fopen("/proc/net/dev", "r")) == NULL)
{
printf("could not open /proc/net/dev!\n");
}
fgets(buffer, HOST_BUF_LEN-1, fd);
fgets(buffer, HOST_BUF_LEN-1, fd);
fgets(buffer, HOST_BUF_LEN-1, fd);
fgets(buffer, HOST_BUF_LEN-1, fd);
//printf (buffer);
ptr = strtok(buffer, ": ");
ptr = strtok(NULL, " ");
//tx_rate = atoll(ptr);
//printf(">>>>%lld<<<<<<", tx_rate);
//ns->tx_rate = &tx_rate;
ns->tx_rate = atol(ptr);
printf(">>>>%ld<<<<<<", ns->tx_rate);
ptr = strtok(NULL, " ");
ptr = strtok(NULL, " ");
ptr = strtok(NULL, " ");
ptr = strtok(NULL, " ");
ptr = strtok(NULL, " ");
ptr = strtok(NULL, " ");
ptr = strtok(NULL, " ");
ptr = strtok(NULL, " ");
ns->rx_rate = atol(ptr);
printf(">>>>%ld<<<<<<", ns->rx_rate);
fclose(fd);
free(buffer);
}
void get_mem_info(mem_info *mem){
FILE *fp;
char buf[80];
unsigned long total, used, mfree, shared, buffers, cached;
/* read memory info */
fp = fopen("/proc/meminfo", "r");
if (!fp) {
perror("fopen('meminfo')");
return;
}
fgets(buf, sizeof(buf), fp); /* skip first line */
if (fscanf(fp, "Mem: %lu %lu %lu %lu %lu %lu",
&total, &used, &mfree, &shared, &buffers, &cached)){
}
mem->total=total; mem->used=used; mem->mfree=mfree; mem->shared=shared; mem->buffers=buffers; mem->cached=cached;
fclose(fp);
}
void get_cpu_info(cpu_info *cpu) {
FILE *fd;
char buffer[HOST_BUF_LEN+1];
int ret=0;
char *tmp;
unsigned int result;
// s_ticks_o = 0, i_ticks_o = 0;
if (( fd = fopen("/proc/stat", "r"))<0 ) {
printf("could not open /proc/stat!\n");
return;
} else {
fgets(buffer, HOST_BUF_LEN, fd);
printf("found: %s\n", buffer);
//'cpu'
tmp = strtok(buffer, " ");
//user
tmp = strtok(NULL, " ");
cpu->user = atol(tmp);
//nice
tmp = strtok(NULL, " ");
cpu->nice = atol(tmp);
// system
tmp = strtok(NULL, " ");
cpu->system = atol(tmp);
// idle
tmp = strtok(NULL, " ");
cpu->idle = atol(tmp);
fclose (fd);
}
}
int check_sys_param(int fd, int graph)
{
char buf[HOST_BUF_LEN];
memset(buf,0,HOST_BUF_LEN);
int days, hours, mins, num;
//struct sysinfo *sys_info = malloc (sizeof(sysinfo));
netstat *ns =malloc(sizeof(netstat));
get_net_x(ns);
cpu_info *cpu = malloc(sizeof(cpu_info));
get_cpu_info(cpu);
mem_info *mem = malloc(sizeof(mem_info));
get_mem_info (mem);
if(graph == 0){
sprintf(buf+strlen(buf), "Total Ram: %luk\tFree: %luk\n",mem->total/1024, mem->mfree/1024); //sys_info->totalram / 1024, sys_info->freeram / 1024);
sprintf(buf+strlen(buf), "Shared Ram: %luk\n", mem->shared/1024);//sys_info->sharedram / 1024 );
sprintf( buf+strlen(buf), "Buffered Ram: %luk\n", mem->buffers/1024);//sys_info->bufferram / 1024);
sprintf( buf+strlen(buf),"Tx rate: %lu\n", ns->tx_rate);
printf(" tx %d\n",strlen(buf)) ;
sprintf( buf+strlen(buf),"Rx rate: %lu\n" , ns->rx_rate);
}
else
{
sprintf(buf,"%lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu ",
//sys_info->uptime % 60,
mem->used,
mem->mfree ,
mem->total ,
mem->buffers,
mem->cached,
ns->tx_rate,ns->rx_rate,
0,
//sys_info->loads[0],
cpu->user,
cpu->nice,
cpu->system,
cpu->idle );
free(ns);
free(cpu);
//free(sys_info);
free(mem);
}
printf(" >>>") ;
printf(buf);
printf("<<<\n") ;
if(send(fd,buf,strlen(buf),0)<=0)
{
close (fd);
return -1;
}
return 1;
}
int init_server(int port, int proto){
struct sockaddr_in addr;
int sd;
int sock = SOCK_SEQPACKET;
int family = PF_INET;
if(proto == IPPROTO_TCP){
sock = SOCK_STREAM;
family =AF_INET;
}
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = INADDR_ANY;
addr.sin_port = htons(port);
if( (sd=socket(family, sock, proto)) < 0 ) {
perror("socket failed\n");
return(-1);
}
if( bind( sd, (struct sockaddr *)&addr,sizeof(addr) ) == -1 ) {
perror("bind");
goto errout;
exit(1);
}
//else printf("binded\n");
if (listen(sd, 1)==-1) {
printf("not listening...\n");
goto errout;
}
//else printf("listening...\n");
return sd;
errout:
//close(sd);
return(-1);
}
void serve(int sd, int graph, int proto) {
int fd, sent=0;
int nodelay=1;
signal(SIGPIPE,SIG_IGN);
//buf = malloc (HOST_BUF_LEN);
for (;;){
if ((fd = accept(sd, NULL, NULL)) < 0){
perror("accept");
}
if ((fcntl(fd, F_SETFL, O_NONBLOCK)) < 0) {
perror("fcntl");
}
if(proto==IPPROTO_SCTP){
if ((setsockopt(fd, SOL_SCTP, SCTP_NODELAY, &nodelay, sizeof(nodelay))) < 0) {
perror("setsockopt");
}
}
if(graph==1)
{
while(check_sys_param(fd, graph)>0)
sleep(1);
}
sleep(1);
close(fd);
}
}
void usage(){
}
int main(int argc, char *argv[]) {
int port = 10000;
char *host;
int proto=IPPROTO_SCTP;
int graph=0;
int option_index = 0;
static struct option long_options[] = {
{"port", required_argument, NULL, 'p'},
{"tcp", 0, NULL, 't' },
{"graph", required_argument, NULL, 'g' }
};
int c = getopt_long(argc, argv, "p:h:tg", long_options, &option_index);
while (c != -1) {
switch (c) {
case 'p':
port = atoi(optarg);
break;
case 't':
proto = IPPROTO_TCP;
break;
case 'g':
graph = 1;
break;
default:
usage();
exit;
}
c = getopt_long(argc, argv, "p:h:tg", long_options, &option_index);
}
int sd = init_server(port, proto);
serve(sd, graph, proto);
}