urbackup_backend/piped_process/getpid.cpp
2011-01-06 17:43:38 +01:00

105 lines
2.7 KiB
C++

/*************************************************************************
* UrBackup - Client/Server backup system
* Copyright (C) 2011 Martin Raiber
*
* 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 <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <string>
#include <signal.h>
#include <sys/resource.h>
bool next(const std::string &pData, const size_t & doff, const std::string &pStr)
{
for(size_t i=0;i<pStr.size();++i)
{
if( i+doff>=pData.size() )
return false;
if( pData[doff+i]!=pStr[i] )
return false;
}
return true;
}
std::string greplace(std::string tor, std::string tin, std::string data)
{
for(size_t i=0;i<data.size();++i)
{
if( next(data, i, tor)==true )
{
data.erase(i, tor.size());
data.insert(i,tin);
i+=tin.size()-1;
}
}
return data;
}
bool first=true;
void termination_handler(int signum)
{
if( first )
{
kill(0,15);
printf("stop");
first=false;
}
}
int main(int argc, char *argv[])
{
if (signal (SIGINT, termination_handler) == SIG_IGN)
signal (SIGINT, SIG_IGN);
if (signal (SIGHUP, termination_handler) == SIG_IGN)
signal (SIGHUP, SIG_IGN);
if (signal (SIGTERM, termination_handler) == SIG_IGN)
signal (SIGTERM, SIG_IGN);
setpgid(0,0);
setpriority(PRIO_PROCESS, 0, 10);
printf("%i|", getpid());
std::string args;
for(int i=1;i<argc;++i)
args+=(std::string)argv[i]+" ";
args=greplace("_a","<",args);
args=greplace("_b", "&", args);
args=greplace("_c", "\"", args);
args=greplace("_d", "(", args);
args=greplace("_e", ")", args);
args=greplace("_u","_", args);
FILE *p=popen(args.c_str(), "r");
if( p==NULL )
{
printf("ERROR opening command");
return 0;
}
while( feof(p)==0 && ferror(p)==0 )
{
char ch[2];
ch[0]=(char)fgetc(p);
ch[1]=0;
printf(ch);
fflush(stdout);
}
/*if( ferror(p)!=0 )
printf("PIPE error");*/
return pclose(p);
}