kc3-lang/gnulib/doc/posix-functions/recvfrom.texi

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• Hash : d4f6a210
  Author :
  Date : 2018-01-27T10:57:59
  

  Fix malfunction of socket functions on HP-UX in 64-bit mode.
  
  * m4/socketlib.m4 (gl_SOCKETLIB): Add comment.
  * m4/extensions.m4 (AC_USE_SYSTEM_EXTENSIONS): Define
  _HPUX_ALT_XOPEN_SOCKET_API.
  * modules/accept (Depends-on): Add 'extensions'.
  * modules/getpeername (Depends-on): Likewise.
  * modules/getsockname (Depends-on): Likewise.
  * modules/getsockopt (Depends-on): Likewise.
  * modules/recvfrom (Depends-on): Likewise.
  * doc/posix-functions/accept.texi: Mention the HP-UX socklen_t problem.
  * doc/posix-functions/getpeername.texi: Likewise.
  * doc/posix-functions/getsockname.texi: Likewise.
  * doc/posix-functions/getsockopt.texi: Likewise.
  * doc/posix-functions/recvfrom.texi: Likewise.
  

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• doc/posix-functions/recvfrom.texi

• @node recvfrom
  @section @code{recvfrom}
  @findex recvfrom
  
  POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/recvfrom.html}
  
  Gnulib module: recvfrom
  
  Portability problems fixed by Gnulib:
  @itemize
  @item
  This function has the return type @code{int} instead of @code{ssize_t}
  on some platforms:
  OSF/1 5.1.
  @item
  On Windows platforms (excluding Cygwin), error codes from this function
  are not placed in @code{errno}, and @code{WSAGetLastError} must be used
  instead.
  @item
  On HP-UX 11, in 64-bit mode, when the macro @code{_HPUX_ALT_XOPEN_SOCKET_API}
  is not defined, this function behaves incorrectly because it is declared
  to take a pointer to a 64-bit wide @code{socklen_t} entity but in fact
  considers it as a pointer to a 32-bit wide @code{unsigned int} entity.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  Some platforms don't have a @code{socklen_t} type; in this case this function's
  sixth argument type is @samp{int *}.
  @end itemize
  

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