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/*
* Module: lbtest_user.cc
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <syslog.h>
#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include <string>
#include <algorithm>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "lbdata.hh"
#include "lbtest_user.hh"
using namespace std;
/**
*
*
**/
void
LBTestUser::send(LBHealth &health)
{
if (_debug) {
cout << "LBTestUser::process()" << endl;
}
_status_line = name() + "\t" + string("Script: ") + _script;
//need to set environment variable for interface
//execute script
string environment = "export WLB_SCRIPT_IFACE=" + health._interface;
string cmd = "/bin/bash -p -c '" + environment + ";umask 000; " + _script + ";'";
string out;
if (system_out(cmd,out) == 0) {
_state = LBTest::K_SUCCESS;
}
else {
_state = LBTest::K_FAILURE;
}
return;
}
int
LBTestUser::system_out(const string &cmd, string &out)
{
// fprintf(out_stream,"system out\n");
if (cmd.empty()) {
return -1;
}
int cp[2]; // Child to parent pipe
if( pipe(cp) < 0) {
return -1;
}
pid_t pid = fork();
if (pid == 0) {
//child
close(cp[0]);
close(0); // Close current stdin.
dup2(cp[1],STDOUT_FILENO); // Make stdout go to write end of pipe.
dup2(cp[1],STDERR_FILENO); // Make stderr go to write end of pipe.
// fcntl(cp[1],F_SETFD,fcntl(cp[1],F_GETFD) & (~FD_CLOEXEC));
close(cp[1]);
int ret = 0;
//set user and group here
setregid(getegid(),getegid());
setreuid(geteuid(),geteuid());
// fprintf(out_stream,"executing: %s\n",cmd);
if (execl("/bin/sh","sh","-c",cmd.c_str(),NULL) == -1) {
ret = errno;
}
close(cp[1]);
exit(ret);
}
else {
//parent
char buf[8192];
memset(buf,'\0',8192);
close(cp[1]);
fd_set rfds;
struct timeval tv;
int flags = fcntl(cp[0], F_GETFL, 0);
fcntl(cp[0], F_SETFL, flags | O_NONBLOCK);
FD_ZERO(&rfds);
FD_SET(cp[0], &rfds);
tv.tv_sec = 1;
tv.tv_usec = 0;
while (select(FD_SETSIZE, &rfds, NULL, NULL, &tv) != -1) {
int err = 0;
if ((err = read(cp[0], &buf, 8191)) > 0) {
out += string(buf);
}
else if (err == -1 && errno == EAGAIN) {
//try again
}
else {
break;
}
FD_ZERO(&rfds);
FD_SET(cp[0], &rfds);
tv.tv_sec = 1;
tv.tv_usec = 0;
fflush(NULL);
}
//now wait on child to kick the bucket
int status;
wait(&status);
close(cp[0]);
return WEXITSTATUS(status);
}
}
/**
*
*
**/
string
LBTestUser::dump()
{
char buf[20];
sprintf(buf,"%u",_resp_time);
string foo = string("script: ") + _script + ", resp_time: " + buf;
return foo;
}
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