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/*----------------------------------------------------------------------------
-- --
-- FLORIST (FSU Implementation of POISX.5) COMPONENTS --
-- --
-- --
-- P O S I X - M A C R O S . C --
-- --
-- Copyright (c) 1996 Florida State University (FSU), All Rights Reserved. --
-- Copyright (C) 1997-2010, AdaCore --
-- --
-- This file is a component of FLORIST, an implementation of an Ada API --
-- for the POSIX OS services, for use with the GNAT Ada compiler and --
-- the FSU Gnu Ada Runtime Library (GNARL). The interface is intended --
-- to be close to that specified in IEEE STD 1003.5: 1990 and IEEE STD --
-- 1003.5b: 1996. --
-- --
-- FLORIST is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the --
-- Free Software Foundation; either version 2, or (at your option) any --
-- later version. FLORIST is distributed in the hope that it will be --
-- useful, but WITHOUT ANY WARRANTY; without even the implied warranty --
-- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. You should have received a --
-- copy of the GNU General Public License distributed with GNARL; see --
-- file COPYING. If not, write to the Free Software Foundation, 59 --
-- Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
----------------------------------------------------------------------------*/
/* file: posix-macros.c
--------------------
These subprograms provide access to POSIX functionality that is
provided for C programs via macros.
*/
#define _REENTRANT
#include "pconfig.h"
#include <unistd.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <errno.h>
/* This definition is need for multi-threaded error codes on Solaris */
int s_isdir(mode_t mode) {
#ifdef S_ISDIR
return S_ISDIR(mode);
#else
return -1;
#endif
}
int s_ischr(mode_t mode) {
#ifdef S_ISCHR
return S_ISCHR(mode);
#else
return -1;
#endif
}
int s_isblk(mode_t mode) {
#ifdef S_ISBLK
return S_ISBLK(mode);
#else
return -1;
#endif
}
int s_isreg(mode_t mode) {
#ifdef S_ISREG
return S_ISREG(mode);
#else
return -1;
#endif
}
int s_islnk(mode_t mode) {
#ifdef S_ISLNK
return S_ISLNK(mode);
#else
return -1;
#endif
}
int s_issock(mode_t mode) {
#ifdef S_ISSOCK
return S_ISSOCK(mode);
#else
return -1;
#endif
}
int s_isfifo(mode_t mode) {
#ifdef S_ISFIFO
return S_ISFIFO(mode);
#else
return -1;
#endif
}
int s_ismsg(mode_t mode) {
#ifdef S_ISMSG
return S_ISMSG(mode);
#else
return -1;
#endif
}
int s_typeismq(struct stat *p) {
#ifdef S_TYPEISMQ
return S_TYPEISMQ(p);
#else
return 0;
#endif
}
int s_issem(mode_t mode) {
#ifdef S_ISSEM
return S_ISSEM(mode);
#else
return -1;
#endif
}
int s_typeissem(struct stat *p) {
#ifdef S_TYPEISSEM
return S_TYPEISSEM(p);
#else
return 0;
#endif
}
int s_isshm(mode_t mode) {
#ifdef S_ISSHM
return S_ISSHM(mode);
#else
return -1;
#endif
}
int s_typeisshm(struct stat *p) {
#ifdef S_TYPEISSHM
return S_TYPEISSHM(p);
#else
return 0;
#endif
}
int wifexited(int stat_val) {
#ifdef WIFEXITED
return WIFEXITED(stat_val);
#else
return -1;
#endif
}
int wexitstatus(int stat_val) {
#ifdef WEXITSTATUS
return WEXITSTATUS(stat_val);
#else
return -1;
#endif
}
int wifsignaled(int stat_val) {
#ifdef WIFSIGNALED
return WIFSIGNALED(stat_val);
#else
return -1;
#endif
}
int wtermsig(int stat_val) {
#ifdef WTERMSIG
return WTERMSIG(stat_val);
#else
return -1;
#endif
}
int wifstopped(int stat_val) {
#ifdef WIFSTOPPED
return WIFSTOPPED(stat_val);
#else
return -1;
#endif
}
int wstopsig(int stat_val) {
#ifdef WSTOPSIG
return WSTOPSIG(stat_val);
#else
return -1;
#endif
}
int fetch_errno() {
return errno;
}
void store_errno(int value) {
errno = value;
}
/* The following are variadic functions and on some platforms, for
instance x86-64, calling a variadic function directly from Ada can
cause problems. Here we provide wrappers that we import instead. */
int __gnat_florist_open(const char *path, int oflag, mode_t mode) {
return open (path, oflag, mode);
}
sem_t *__gnat_florist_sem_open
(char *name, int oflag, mode_t mode, unsigned value) {
return sem_open (name, oflag, mode, value);
}
/* The following wrappers work around problems on systems where the
stat family of functions are implemented using macros. (eg. Tru64
5.1A and Linux.) */
int __gnat_florist_stat(const char *path, struct stat *buf) {
return stat(path, buf);
}
int __gnat_florist_lstat(const char *path, struct stat *buf) {
return lstat(path, buf);
}
int __gnat_florist_fstat(int fd, struct stat *buf) {
return fstat(fd, buf);
}
/* The following wrapper ensures that uname(3) is mapped correctly even
when it is defined as an inlined function. */
int __gnat_florist_uname (struct utsname *s) {
return uname (s);
}
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