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nntpchan/contrib/backends/nntpchan-daemon/libnntpchan/exec_frontend.cpp
2017-10-11 09:48:27 -04:00

58 lines
1.2 KiB
C++

#include <nntpchan/exec_frontend.hpp>
#include <cstring>
#include <iostream>
#include <errno.h>
#include <unistd.h>
#include <sys/wait.h>
namespace nntpchan
{
ExecFrontend::ExecFrontend(const std::string & fname) :
m_exec(fname)
{
}
ExecFrontend::~ExecFrontend() {}
void ExecFrontend::ProcessNewMessage(const fs::path & fpath)
{
Exec({"post", fpath});
}
bool ExecFrontend::AcceptsNewsgroup(const std::string & newsgroup)
{
return Exec({"newsgroup", newsgroup}) == 0;
}
bool ExecFrontend::AcceptsMessage(const std::string & msgid)
{
return Exec({"msgid", msgid}) == 0;
}
int ExecFrontend::Exec(std::deque<std::string> args)
{
// set up arguments
const char ** cargs = new char const *[args.size() +2];
std::size_t l = 0;
cargs[l++] = m_exec.c_str();
while (args.size()) {
cargs[l++] = args.front().c_str();
args.pop_front();
}
cargs[l] = 0;
int retcode = 0;
pid_t child = fork();
if(child) {
waitpid(child, &retcode, 0);
} else {
int r = execvpe(m_exec.c_str(),(char * const *) cargs, environ);
if ( r == -1 ) {
std::cout << strerror(errno) << std::endl;
exit( errno );
} else
exit(r);
}
return retcode;
}
}