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xns5 (5)
  • >> xns5 (5) ( Solaris man: Форматы файлов )
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    NAME
         standards, ANSI,  C,  ISO,  POSIX,  POSIX.1,  POSIX.2,  SUS,
         SUSv2, SVID, SVID3, XNS, XNS4, XNS5, XPG, XPG3, XPG4, XPG4v2
         - standards and specifications supported by Solaris
    
    DESCRIPTION
         Solaris 7 supports IEEE Std 1003.1 and IEEE Std 1003.2, com-
         monly  known  as POSIX.1 and POSIX.2, respectively. The fol-
         lowing table lists each version of these  standards  with  a
         brief  description  and  the  SunOS  or Solaris release that
         first conformed to it.
    
         POSIX Standard             Description                  Release
         POSIX.1-1988     system interfaces and headers     SunOS 4.1
         POSIX.1-1990     POSIX.1-1988 update               Solaris 2.0
         POSIX.1b-1993    realtime extensions               Solaris 2.4
         POSIX.1c-1996    threads extensions                Solaris 2.6
         POSIX.2-1992     shell and utilities               Solaris 2.5
         POSIX.2a-1992    interactive shell and utilities   Solaris 2.5
    
    
         Solaris 7 also   supports  the  X/Open  Common  Applications
         Environment (CAE) Portability Guide Issue 3 (XPG3) and Issue
         4 (XPG4), Single UNIX  Specification  (SUS,  also  known  as
         XPG4v2),  and  Single UNIX Specification, Version 2 (SUSv2).
         Both XPG4  and  SUS  include  Networking  Services  Issue  4
         (XNS4). SUSv2 includes Networking Services Issue 5 (XNS5).
    
         Solaris 7 also supports two application programming environ-
         ments, ILP32 (32-bit) and LP64 (64-bit).
    
         The following table lists each X/Open specification  with  a
         brief  description  and  the  SunOS  or Solaris release that
         first conformed to it.
    
         X/Open CAE Specification          Description                Release
         XPG3                       superset  of  POSIX.1-1988   SunOS 4.1
                                    containing  utilities from
                                    SVID3
         XPG4                       superset of  POSIX.1-1990,   Solaris 2.4
                                    POSIX.2-1992,          and
                                    POSIX.2a-1992   containing
                                    extensions  to POSIX stan-
                                    dards from XPG3
         SUS (XPG4v2)               superset of XPG4  contain-   Solaris 2.6
                                    ing  historical BSD inter-
                                    faces widely used by  com-
                                    mon application packages
         XNS4                       sockets and XTI interfaces   Solaris 2.6
    
    
    
         SUSv2                      superset of  SUS  extended   Solaris 7
                                    to  support POSIX.1b-1993,
                                    POSIX.1c-1996, and ISO/IEC
                                    9899  (C  Standard) Amend-
                                    ment 1
         XNS5                       superset  and   LP64-clean   Solaris 7
                                    derivative of XNS4.
    
    
         The XNS4 specification is safe for use only  in  ILP32  (32-
         bit)  environments  and should not be used for LP64 (64-bit)
         application environments. Use  XNS5,  which  has  LP64-clean
         interfaces  that are portable across ILP32 and LP64 environ-
         ments.
    
         Solaris 7 has been branded to conform to  The  Open  Group's
         UNIX 98 Product Standard.
    
         Solaris releases 2.0 through 7 also support  the  interfaces
         specified  by  the System V Interface Definition, Third Edi-
         tion, Volumes 1 through  4  (SVID3).   Note,  however,  that
         since  the  developers  of  this specification (UNIX Systems
         Laboratories) are no  longer  in  business  and  since  this
         specification defers to POSIX and X/Open CAE specifications,
         there is some disagreement about what is currently  required
         for conformance to this specification.
    
         When Sun WorkShop  Compiler  C  4.2  is  installed,  Solaris
         releases 2.0 through 7 support the ANSI X3.159-1989 Program-
         ming Language - C and ISO/IEC 9899:1990 Programming Language
         - C (C) interfaces.
    
         When Sun WorkShop Compiler C 5.0  is  installed,  Solaris  7
         also supports ISO/IEC 9899 Amendment 1: C Integrity.
    
      Utilities
         If the behavior required by POSIX.2, POSIX.2a, XPG4, SUS, or
         SUSv2  conflicts  with  historical Solaris utility behavior,
         the original Solaris version of the utility is unchanged;  a
         new version that is standard-conforming has been provided in
         /usr/xpg4/bin. For applications wishing to take advantage of
         POSIX.2,  POSIX.2a,  XPG4,  SUS, or SUSv2 features, the PATH
         (sh or ksh) or path (csh) environment  variables  should  be
         set  with  /usr/xpg4/bin  preceding any other directories in
         which  utilities   specified  by  those  specifications  are
         found, such as /bin, /usr/bin, /usr/ucb, and /usr/ccs/bin.
    
      Feature Test Macros
         Feature test macros are used  by  applications  to  indicate
         additional  sets  of  features that are desired beyond those
         specified by the C standard. If  an  application  uses  only
         those   interfaces  and  headers  defined  by  a  particular
         standard (such as POSIX or X/Open CAE),  then it  need  only
         define  the appropriate feature test macro specified by that
         standard. If the application is using interfaces and headers
         not  defined  by that standard, then in addition to defining
         the appropriate standard feature test macro,  it  must  also
         define  __EXTENSIONS__. Defining __EXTENSIONS__ provides the
         application with access to all interfaces and headers not in
         conflict  with  the specified standard. The application must
         define __EXTENSIONS__ either at compile time or  within  the
         application.
    
      ANSI/ISO C
         No feature test macros need to be defined to  indicate  that
         an application is a conforming C application.
    
      POSIX
         Applications that are  intended  to  be  conforming  POSIX.1
         applications  must  define the feature test macros specified
         by the standard before including any headers.  For the stan-
         dards  listed  below,  applications  must define the feature
         test macros listed.   Application  writers  must  check  the
         corresponding standards for other macros that can be queried
         to determine if desired options are supported by the  imple-
         mentation.
    
               POSIX Standard              Feature Test Macros
         POSIX.1-1990                  _POSIX_SOURCE
         POSIX.1-1990 and              _POSIX_SOURCE and
            POSIX.2-1992 C-Language       _POSIX_C_SOURCE=2
            Bindings Option
         POSIX.1b-1993                 _POSIX_C_SOURCE=199309L
         POSIX.1c-1996                 _POSIX_C_SOURCE=199506L
    
    
      SVID3
         The SVID3 specification does not specify  any  feature  test
         macros  to  indicate  that an application is written to meet
         SVID3 requirements.  The  SVID3  specification  was  written
         before the C standard was completed.
    
      X/Open CAE
         To build or compile an application that conforms to  one  of
         the X/Open CAE specifications, use the following guidelines.
         Applications need not set the POSIX feature test  macros  if
         they require both CAE and POSIX functionality.
    
         XPG3  The application must define _XOPEN_SOURCE with a value
               other than 500 (preferably 1).
    
         XPG4  The application must define _XOPEN_SOURCE with a value
               other    than    500    (preferably    1)    and   set
               _XOPEN_VERSION=4.
    
         SUS (XPG4v2)
               The application must define _XOPEN_SOURCE with a value
               other    than    500    (preferably    1)    and   set
               _XOPEN_SOURCE_EXTENDED=1.
    
         SUSv2 The application must define _XOPEN_SOURCE=500.
    
      Compilation
         A POSIX.2-, XPG4-, SUS-, or SUSv2-conforming  implementation
         must   include   an   ANSI  X3.159-1989  (ANSI  C  Language)
         standard-conforming compilation system and the  cc  and  c89
         utilities.  Solaris  7 was tested with the cc and c89 utili-
         ties and the compilation system  provided  by  Sun  WorkShop
         Compiler  C 5.0 in the SPARC and IA environments. When cc is
         used to link applications,  /usr/ccs/lib/values-xpg4.o  must
         be  specified  on  any  link/load command line, but the pre-
         ferred way to build applications is described below.
    
         An XNS4- or XNS5-conforming application must include -l  XNS
         on any link/load command line.
    
         If  the  compiler  suppports  the  redefine_extname   pragma
         feature  (the  Sun  WorkShop Compiler C 4.2 and Sun WorkShop
         Compiler    C    5.0    compiler    defines    the     macro
         __PRAGMA_REDEFINE_EXTNAME  to indicate that it supports this
         feature),   then   the   standard   headers   use    #pragma
         redefine_extname  directives  to properly map function names
         onto library entry point names. This mapping  provides  full
         support for ISO C, POSIX, and X/Open namespace reservations.
         The Sun WorkShop  Compiler C 5.0 compiler was used  for  all
         branding and certification tests for Solaris 7.
    
         If this pragma feature is not supported by the compiler, the
         headers  use  the #define directive to map internal function
         names onto appropriate library entry point  names.  In  this
         instance,  applications  should avoid using the explicit 64-
         bit file offset symbols listed on the lf64(5)  manual  page,
         since these names are used by the implementation to name the
         alternative entry points.
    
         When using Sun WorkShop Compiler C  5.0,  applications  con-
         forming  to  the  specifications listed above should be com-
         piled using the utilities and flags indicated in the follow-
         ing table:
    
            Specification       Compiler/Flags       Feature Test Macros
         ANSI/ISO C             c89              none
         SVID3                  cc -Xt           none
         POSIX.1-1990           c89              _POSIX_SOURCE
         POSIX.1-1990 and       c89              _POSIX_SOURCE  and
            POSIX.2-1992                            POSIX_C_SOURCE=2
            C-Language
            Bindings Option
         POSIX.1b-1993          c89              _POSIX_C_SOURCE=199309L
         POSIX.1c-1996          c89              _POSIX_C_SOURCE=199506L
         CAE XPG3               cc -Xa           _XOPEN_SOURCE
         CAE XPG4               c89              _XOPEN_SOURCE and
                                                    _XOPEN_VERSION=4
         SUS (CAE XPG4v2)       c89              _XOPEN_SOURCE and
            (includes XNS4)                         _XOPEN_SOURCE_EXTENDED=1
         SUSv2(includes XNS5)   c89              _XOPEN_SOURCE=500
    
    
         For  platforms  supporting  the  LP64  (64-bit)  programming
         environment  where  the SC5.0 Compilers have been installed,
         SUSv2-conforming LP64 applications using XNS5 library  calls
         should be built with command lines of the form:
    
         c89 $(getconf XBS5_LP64_OFF64_CFLAGS) -D_XOPEN_SOURCE=500 \
             $(getconf XBS5_LP64_OFF64_LDFLAGS) foo.c -o foo \
             $(getconf XBS5_LP64_OFF64_LIBS) -lxnet
    
    SEE ALSO
         sysconf(3C), environ(5), lf64(5)
    
    
    
    


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