bool FileSys::Upward()
{
if( callStack.size() - 1 < 1 )
return false;
else
{
callStack.pop_back();
OpenDIR();
return true;
}
}
bool ProcFS::EnumerateThreads(pid_t pid, std::function<void(pid_t)> const &cb) {
DIR *dir = OpenDIR(pid, "task");
if (dir == nullptr)
return false;
while (struct dirent *dp = readdir(dir)) {
pid_t pid = strtol(dp->d_name, nullptr, 0);
if (pid == 0)
continue;
cb(pid);
}
closedir(dir);
return true;
}
bool ProcFS::EnumerateProcesses(bool allUsers, uid_t uid,
std::function<void(pid_t, uid_t)> const &cb) {
DIR *dir = OpenDIR("");
if (dir == nullptr)
return false;
while (struct dirent *dp = readdir(dir)) {
pid_t pid = strtol(dp->d_name, nullptr, 0);
if (pid == 0)
continue;
//
// Get the uid.
//
struct stat stbuf;
char path[PATH_MAX + 1];
MakePath(path, PATH_MAX, pid, "");
if (stat(path, &stbuf) < 0)
continue;
//
// Compare if necessary.
//
if (!allUsers && stbuf.st_uid != uid)
continue;
//
// We don't want kernel threads, so exclude them from the list,
// we know they are kernel threads because "exe" points to nothing.
//
if (GetProcessExecutablePath(pid).empty())
continue;
cb(pid, stbuf.st_uid);
}
closedir(dir);
return true;
}
DIR *ProcFS::OpenDIR(pid_t pid, char const *what) {
return OpenDIR(pid, pid, what);
}
void FileSys::SetDefaultDir()
{
callStack.clear();
callStack.push_back( "/home/user" );
OpenDIR();
}