set default newlib dir's structure

git-svn-id: svn://kolibrios.org@4874 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/newlib/libc/stdlib/system.c

@@ -0,0 +1,85 @@
+/*
+FUNCTION
+<<system>>---execute command string
+
+INDEX
+	system
+INDEX
+	_system_r
+
+ANSI_SYNOPSIS
+	#include <stdlib.h>
+	int system(char *<[s]>);
+
+	int _system_r(void *<[reent]>, char *<[s]>);
+
+TRAD_SYNOPSIS
+	#include <stdlib.h>
+	int system(<[s]>)
+	char *<[s]>;
+
+	int _system_r(<[reent]>, <[s]>)
+	char *<[reent]>;
+	char *<[s]>;
+
+DESCRIPTION
+
+Use <<system>> to pass a command string <<*<[s]>>> to <</bin/sh>> on
+your system, and wait for it to finish executing.
+
+Use ``<<system(NULL)>>'' to test whether your system has <</bin/sh>>
+available.
+
+The alternate function <<_system_r>> is a reentrant version.  The
+extra argument <[reent]> is a pointer to a reentrancy structure.
+
+RETURNS
+<<system(NULL)>> returns a non-zero value if <</bin/sh>> is available, and
+<<0>> if it is not.
+
+With a command argument, the result of <<system>> is the exit status
+returned by <</bin/sh>>.
+
+PORTABILITY
+ANSI C requires <<system>>, but leaves the nature and effects of a
+command processor undefined.  ANSI C does, however, specify that
+<<system(NULL)>> return zero or nonzero to report on the existence of
+a command processor.
+
+POSIX.2 requires <<system>>, and requires that it invoke a <<sh>>.
+Where <<sh>> is found is left unspecified.
+
+Supporting OS subroutines required: <<_exit>>, <<_execve>>, <<_fork_r>>,
+<<_wait_r>>.
+*/
+
+#include <_ansi.h>
+#include <errno.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <_syslist.h>
+#include <reent.h>
+
+
+int
+_DEFUN(_system_r, (ptr, s),
+     struct _reent *ptr _AND
+     _CONST char *s)
+{
+  if (s == NULL)
+    return 0;
+  errno = ENOSYS;
+  return -1;
+}
+
+#ifndef _REENT_ONLY
+
+int
+_DEFUN(system, (s),
+     _CONST char *s)
+{
+  return _system_r (_REENT, s);
+}
+
+#endif