GroupInfo.cxx

// cosmos
#include <cosmos/error/UsageError.hxx>
#include <cosmos/GroupInfo.hxx>
#include <cosmos/private/InfoBase.hxx>
#include <cosmos/utils.hxx>
 
namespace cosmos {
 
GroupInfo::GroupInfo(const SysString name) {
        auto call = [&](struct group **res) -> int {
                return getgrnam_r(name.raw(), &m_info,
                                m_buf.data(), m_buf.size(),
                                res);
        };
 
        m_valid = getInfo(call, "getgrnam_r()");
 
        if (!m_valid)
                reset();
}
 
GroupInfo::GroupInfo(const GroupID gid) {
        auto call = [&](struct group **res) -> int {
                return getgrgid_r(to_integral(gid), &m_info,
                                m_buf.data(), m_buf.size(),
                                res);
        };
 
        m_valid = getInfo(call, "getgrgid_r()");
        if (!m_valid)
                reset();
}
 
SysStringVector GroupInfo::members() const {
        if (!valid()) {
                cosmos_throw (UsageError{"cannot get members of invalid GroupInfo"});
        }
 
        SysStringVector ret;
 
        for (char **member = m_info.gr_mem; *member != nullptr; member++) {
                ret.push_back(*member);
        }
 
        return ret;
}
 
} // end ns