This file is indexed.

/usr/include/bobcat/syslogstream is in libbobcat-dev 3.19.01-1ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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#ifndef INCLUDED_BOBCAT_SYSLOGSTREAM_
#define INCLUDED_BOBCAT_SYSLOGSTREAM_

//  options (default: none):
//
//     LOG_CONS
//            write directly to system console  if  there  is  an
//            error while sending to system logger
//
//     LOG_NDELAY
//            open the connection immediately (normally, the con-
//            nection is opened when the first message is logged)
//
//     LOG_PERROR
//            print to stderr as well
//
//     LOG_PID
//            include PID with each message
//
//
//  facility
//      type of program doing the logging. LOG_USER is used as default:
//
//     LOG_AUTHPRIV
//            security/authorization messages (private)
//
//     LOG_CRON
//            clock daemon (cron and at)
//
//     LOG_DAEMON
//            other system daemons
//
//     LOG_KERN
//            kernel messages
//
//     LOG_LOCAL0 through LOG_LOCAL7
//            reserved for local use
//
//     LOG_LPR
//            line printer subsystem
//
//     LOG_MAIL
//            mail subsystem
//
//     LOG_NEWS
//            USENET news subsystem
//
//     LOG_SYSLOG
//            messages generated internally by syslogd
//
//     LOG_USER(default)
//            generic user-level messages
//
//     LOG_UUCP
//            UUCP subsystem
//
// level (priority):
//
//      LOG_NOTICE is used by default.
//      This determines the importance of the message.  The levels
//      are, in order of decreasing importance:
//
//     LOG_EMERG
//            system is unusable
//
//     LOG_ALERT
//            action must be taken immediately
//
//     LOG_CRIT
//            critical conditions
//
//     LOG_ERR
//            error conditions
//
//     LOG_WARNING
//            warning conditions
//
//     LOG_NOTICE   (Used as DEFAULT)
//            normal, but significant, condition
//
//     LOG_INFO
//            informational message
//
//     LOG_DEBUG
//            debug-level message

#include <bobcat/syslogbuf>

#include <ostream>
#include <syslog.h>
                        
namespace FBB
{

class SyslogStream: private Syslogbuf, public std::ostream
{
    public:
        explicit SyslogStream(std::string const &ident = "",
            Priority priority = NOTICE, Facility facility = USER,
            int option = 0);

        explicit SyslogStream(char const *ident,
            Priority priority = NOTICE, Facility facility = USER,
            int option = 0);

        Priority priority()   const;                            // .f
        Priority defaultPriority()   const;                     // .f
        Priority setPriority(Priority priority);                // .f
        Priority setDefaultPriority(Priority priority);         // .f

        void open(std::string const &ident,                     // .f
            Priority priority = NOTICE, Facility facility = USER,
            int option = 0);
        void close();                                           // .f

        static  Priority stoP(std::string const &name, 
                                                Priority priority = NOTICE);
        static  Facility stoF(std::string const &name, 
                                                Facility facility = USER);

        static int setMask(Priority p1, PriorityType upTo);     // 1.f
        static int setMask(Priority p1);                        // 2.f

        template <typename ...Priorities>
        static int setMask(Priority p1, Priorities ...ps);      // 3.f

// MANIPULATORS:
        static std::ostream &emerg(std::ostream &str);          // .f
        static std::ostream &alert(std::ostream &str);          // .f
        static std::ostream &crit(std::ostream &str);           // .f
        static std::ostream &err(std::ostream &str);            // .f
        static std::ostream &warning(std::ostream &str);        // .f
        static std::ostream &notice(std::ostream &str);         // .f
        static std::ostream &info(std::ostream &str);           // .f
        static std::ostream &debug(std::ostream &str);          // .f
        static std::ostream &strerrno(std::ostream &str);       // .f

    private:
        static std::ostream &setPriority(std::ostream &str, 
                                        Priority priority);

        static int maskValue(Priority p1);                          // 1.f

        template <typename ...Priorities>
        static int maskValue(Priority p1, Priorities ...ps);        // 2.f

        static int setMask(int maskValue, PriorityType upTo);
};

inline std::ostream &SyslogStream::alert(std::ostream &str)
{
    return setPriority(str, ALERT);
}
inline void SyslogStream::close()
{
    Syslogbuf::close();
}
inline std::ostream &SyslogStream::crit(std::ostream &str)
{
    return setPriority(str, CRIT);
}
inline std::ostream &SyslogStream::debug(std::ostream &str)
{
    return setPriority(str, DEBUG);
}
inline Priority SyslogStream::defaultPriority()   const
{
    return Syslogbuf::defaultPriority();
}
inline std::ostream &SyslogStream::emerg(std::ostream &str)
{
    return setPriority(str, EMERG);
}
inline std::ostream &SyslogStream::err(std::ostream &str)
{
    return setPriority(str, ERR);
}
inline std::ostream &SyslogStream::info(std::ostream &str)
{
    return setPriority(str, INFO);
}
inline std::ostream &SyslogStream::notice(std::ostream &str)
{
    return setPriority(str, NOTICE);
}
inline void SyslogStream::open(std::string const &ident, Priority priority, 
                               Facility facility, int option)
{
    Syslogbuf::open(ident, priority, facility, option);
}
inline Priority SyslogStream::priority()   const       
{
    return Syslogbuf::priority();
}
inline Priority SyslogStream::setDefaultPriority(Priority priority)
{
    return Syslogbuf::setDefaultPriority(priority);
}        
inline int SyslogStream::setMask(Priority p1, PriorityType upTo)
{
    return setMask(maskValue(p1), upTo);
}
inline int SyslogStream::setMask(Priority p1)
{
    return setMask(maskValue(p1), SINGLE);
}
template <typename ...Priorities>
inline int SyslogStream::setMask(Priority p1, Priorities ...ps)
{
    return setMask(maskValue(p1, ps ...), SINGLE);
}
inline Priority SyslogStream::setPriority(Priority priority)
{
    return Syslogbuf::setPriority(priority);
}        
inline std::ostream &SyslogStream::warning(std::ostream &str)
{
    return setPriority(str, WARNING);
}

// The following private inline members, must remain here as they are used by
// the setMask member template

inline int SyslogStream::maskValue(Priority p1)
{
    return 1 << p1;
}
template <typename ...Priorities>
inline int SyslogStream::maskValue(Priority p1, Priorities ...ps)
{
    return ((1 << p1) | maskValue(ps ...));
}
inline int SyslogStream::setMask(int maskValue, PriorityType upTo)
{
        // if upTo, maskValue is 2**x, and all its lower bits are also raised
    return setlogmask(upTo == SINGLE ?  
                        maskValue : maskValue |= (maskValue - 1));
}

} // FBB

#endif