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/* Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program 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
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*
* As a special exception, the Free Software Foundation gives permission
* for additional uses of the text contained in its release of GUILE.
*
* The exception is that, if you link the GUILE library with other files
* to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the GUILE library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the
* Free Software Foundation under the name GUILE. If you copy
* code from other Free Software Foundation releases into a copy of
* GUILE, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for GUILE, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice. */
#include <stdio.h>
#include "_scm.h"
#include "scmsigs.h"
#include "simpos.h"
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
extern int system();
SCM_PROC(s_system, "system", 0, 1, 0, scm_system);
SCM
scm_system(cmd)
SCM cmd;
{
int rv;
if (SCM_UNBNDP (cmd))
{
#ifdef HAVE_SYSTEM
rv = system (NULL);
#else
rv = 0;
#endif
return rv ? SCM_BOOL_T : SCM_BOOL_F;
}
SCM_ASSERT(SCM_NIMP(cmd) && SCM_ROSTRINGP(cmd), cmd, SCM_ARG1, s_system);
#ifdef HAVE_SYSTEM
SCM_DEFER_INTS;
errno = 0;
if (SCM_ROSTRINGP (cmd))
cmd = scm_makfromstr (SCM_ROCHARS (cmd), SCM_ROLENGTH (cmd), 0);
rv = system(SCM_ROCHARS(cmd));
if (rv == -1 || (rv == 127 && errno != 0))
scm_syserror (s_system);
SCM_ALLOW_INTS;
return SCM_MAKINUM (rv);
#else
scm_sysmissing (s_system);
#endif
}
extern char *getenv();
SCM_PROC (s_getenv, "getenv", 1, 0, 0, scm_getenv);
SCM
scm_getenv(nam)
SCM nam;
{
char *val;
SCM_ASSERT(SCM_NIMP(nam) && SCM_ROSTRINGP(nam), nam, SCM_ARG1, s_getenv);
if (SCM_ROSTRINGP (nam))
nam = scm_makfromstr (SCM_ROCHARS (nam), SCM_ROLENGTH (nam), 0);
val = getenv(SCM_CHARS(nam));
return (val) ? scm_makfromstr(val, (scm_sizet)strlen(val), 0) : SCM_BOOL_F;
}
/* simple exit, without unwinding the scheme stack or flushing ports. */
SCM_PROC (s_primitive_exit, "primitive-exit", 0, 1, 0, scm_primitive_exit);
SCM
scm_primitive_exit (SCM status)
{
int cstatus = 0;
if (!SCM_UNBNDP (status))
{
SCM_ASSERT (SCM_INUMP (status), status, SCM_ARG1, s_primitive_exit);
cstatus = SCM_INUM (status);
}
exit (cstatus);
}
void
scm_init_simpos ()
{
#include "simpos.x"
}
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