intro —
introduction to the system libraries
This section provides an overview of the system libraries, their functions,
  error returns and other common definitions and concepts. Most of these
  functions are available from the standard C library, libc.
  Other libraries, such as the math library, libm, must be
  indicated at compile time with the -l option of the
  compiler.
The various system libraries supplied in
    NetBSD (followed by the linker flags) are:
  - libasn1
    (-lasn1)
- The abstract syntax notation (ASN) library provides routines for the
      specification of abstract data types.
- libbz2
    (-lbz2)
- Block-sorting compressor library providing routines for fast and efficient
      compression.
- libc
    (-lc)
- The standard C library. When using the C compiler
      cc(1), it is not necessary to
      supply the linker flag -lc
      for these functions. There are several subsystems included inside
      libc:
      - standard I/O routines
- see stdio(3)
- database routines
- see db(3)
- bit operators
- see bitstring(3)
- string operators
- see string(3)
- character tests and character operators
-  
- encryption and hash routines
- see md4(3) and
          md5(3).
- storage allocation
- see mpool(3) and
          malloc(3)
- time functions
- see time(3)
- signal handling
- see signal(3)
 
- libcom_err
    (-lcom_err)
- The common error description library. See
      com_err(3).
- libcompat
    (-lcompat)
- Functions which are obsolete but are available for compatibility with
      4.3BSD. In particular, a number of system call
      interfaces provided in previous releases of BSD
      have been included for source code compatibility. Use of these routines
      should, for the most part, be avoided. The manual page entry for each
      compatibility routine indicates the proper interface to use.
- libcrypt
    (-lcrypt)
- The crypt library. See
      crypt(3).
- libcrypto
    (-lcrypto)
- The OpenSSL cryptographic library. See
      crypto(7).
- libcurses
    (-lcurses-lterminfo)
- Terminal independent screen management routines for two dimensional
      non-bitmap display terminals. See
      curses(3).
- libdes
    (-ldes)
- The OpenSSL cryptographic library for the DES algorithms. See
      des(3).
- libdm
    (-ldm)
- The device-mapper driver access library used for communication with kernel
      driver dm(4) and for
      lvm(8) subsystem.
- libedit
    (-ledit)
- The command-line editor or editline library. The editline library provides
      generic editing and history functions. See
      editline(3).
- libform
    (-lform)
- The curses form library provides a terminal-independent form system using
      the curses library. The form library provides facilities for defining
      forms on terminals. See
      forms(3).
- libgssapi
    (-lgssapi)
- The Generic Security Services (GSS) API library. This library provides
      verification services to applications and usually sits above the
      cryptographic libraries.
- libhesiod
    (-lhesiod)
- The Hesiod library. This library provides routines for performing lookups
      of Hesiod information, which is stored as text records in the Domain Name
      Service. See hesiod(3).
- libhdb
    (-lhdb)
- The Heimdal Kerberos 5 authentication/authorisation database access
      library.
- libintl
    (-lintl)
- The internationalized message handling library. See
      gettext(3).
- libipsec
    (-lipsec)
- The IPsec policy control library. See
      ipsec_set_policy(3)
      and
      ipsec_strerror(3).
- libkadm5clnt
    (-lkadm5clnt)
- The Kerberos 5 administration client library.
- libkadm5srv
    (-lkadm5srv)
- The Kerberos 5 administration server library. See
      kadm5_pwcheck(3).
- libkafs
    (-lkafs)
- The Kerberos IV AFS library. See
      kafs(3).
- libkdb
    (-lkdb)
- The Kerberos IV authentication/authorisation database access library.
- libkrb
    (-lkrb)
- The Kerberos IV library.
- libkrb5
    (-lkrb5)
- The Kerberos 5 library. See
      krb5(3).
- libkstream
    (-lkstream)
- Kerberos IV encrypted stream library.
- libkvm
    (-lkvm)
- Kernel data access library. See
      kvm(3).
- libl
    (-ll)
- The library for lex(1).
- libm
    (-lm)
- The math library. See
    math(3).
- libmenu
    (-lmenu)
- The curses menu library. See
      menus(3).
- libnvmm
    (-lnvmm)
- NetBSD Virtualization API. See
      libnvmm(3).
- libossaudio
    (-lossaudio)
- Open Sound System compatibility library. See
      ossaudio(3).
- libpanel
    (-lpanel)
- The curses panel library. See
      panel(3).
- libpcap
    (-lpcap)
- The packet capture library. See
      pcap(3).
- libpci
    (-lpci)
- The PCI bus access library. See
      pci(3).
- libposix
    (-lposix)
- The POSIX compatibility library provides a compatibility interface for
      POSIX functions which differ from the standard BSD interfaces. See
      chown(2) and
      rename(2).
- libresolv
    (-lresolv)
- The DNS resolver library.
- librmt
    (-lrmt)
- Remote magnetic tape library. See
      rmtops(3).
- libroken
    (-lroken)
- A library containing compatibility functions used by Kerberos. It
      implements functionality required by the Kerberos implementation not
      implemented in the standard NetBSD libraries.
- librpcsvc
    (-lrpcsvc)
- The Remote Procedure Call (RPC) services library. See
      rpc(3).
- libskey
    (-lskey)
- The S/Key one-time password library. See
      skey(3).
- libsl
    (-lsl)
-  
- libss
    (-lss)
-  
- libssl
    (-lssl)
- The secure sockets layer (SSL) library. See
      ssl(7).
- libtelnet
    (-ltelnet)
- The telnet library.
- libterminfo
    (-lterminfo)
- The terminal-independent operation library. See
      terminfo(3).
- libusbhid
    (-lusbhid)
- The Universal Serial Bus (USB) Human Interface Devices access library. See
      libusbhid(3).
- libutil
    (-lutil)
- The system utilities library. See
      util(3).
- libwrap
    (-lwrap)
- The TCP wrappers library. See
      hosts_access(3).
- liby
    (-ly)
- The library for yacc(1).
- libz
    (-lz)
- General-purpose compression library. See
      zlib(3).
Anintro manual appeared in
  Version 7 AT&T UNIX.