-/* Copyright (C) 1995,1996 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1997,1998,2000,2001 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
*
* 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, 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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.
*
* 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.
- */
+ * If you do not wish that, delete this exception notice. */
+
+
\f
-#include <stdio.h>
-#include "_scm.h"
+#include <errno.h>
+
+#include "libguile/_scm.h"
-#include "scmsigs.h"
-#include "simpos.h"
+#include "libguile/scmsigs.h"
+#include "libguile/strings.h"
+
+#include "libguile/validate.h"
+#include "libguile/simpos.h"
#ifdef HAVE_STRING_H
#include <string.h>
extern int system();
\f
-#ifndef _Windows
-SCM_PROC(s_system, "system", 1, 0, 0, scm_system);
-
-SCM
-scm_system(cmd)
- SCM cmd;
+#ifdef HAVE_SYSTEM
+SCM_DEFINE (scm_system, "system", 0, 1, 0,
+ (SCM cmd),
+ "Execute @var{cmd} using the operating system's \"command\n"
+ "processor\". Under Unix this is usually the default shell\n"
+ "@code{sh}. The value returned is @var{cmd}'s exit status as\n"
+ "returned by @code{waitpid}, which can be interpreted using the\n"
+ "functions above.\n"
+ "\n"
+ "If @code{system} is called without arguments, return a boolean\n"
+ "indicating whether the command processor is available.")
+#define FUNC_NAME s_scm_system
{
- SCM_ASSERT(SCM_NIMP(cmd) && SCM_ROSTRINGP(cmd), cmd, SCM_ARG1, s_system);
- if (SCM_ROSTRINGP (cmd))
- cmd = scm_makfromstr (SCM_ROCHARS (cmd), SCM_ROLENGTH (cmd), 0);
- scm_ignore_signals();
-# ifdef AZTEC_C
- cmd = SCM_MAKINUM(Execute(SCM_ROCHARS(cmd), 0, 0));
-# else
- cmd = SCM_MAKINUM(0L+system(SCM_ROCHARS(cmd)));
-# endif
- scm_unignore_signals();
- return cmd;
+ int rv;
+
+ if (SCM_UNBNDP (cmd))
+ {
+ rv = system (NULL);
+ return SCM_BOOL(rv);
+ }
+ SCM_VALIDATE_STRING (1, cmd);
+ SCM_DEFER_INTS;
+ errno = 0;
+ rv = system (SCM_STRING_CHARS (cmd));
+ if (rv == -1 || (rv == 127 && errno != 0))
+ SCM_SYSERROR;
+ SCM_ALLOW_INTS;
+ return SCM_MAKINUM (rv);
}
-#endif
+#undef FUNC_NAME
+#endif /* HAVE_SYSTEM */
extern char *getenv();
-SCM_PROC (s_getenv, "getenv", 1, 0, 0, scm_getenv);
-
-SCM
-scm_getenv(nam)
- SCM nam;
+SCM_DEFINE (scm_getenv, "getenv", 1, 0, 0,
+ (SCM nam),
+ "Looks up the string @var{name} in the current environment. The return\n"
+ "value is @code{#f} unless a string of the form @code{NAME=VALUE} is\n"
+ "found, in which case the string @code{VALUE} is returned.")
+#define FUNC_NAME s_scm_getenv
{
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;
+ SCM_VALIDATE_STRING (1, nam);
+ val = getenv (SCM_STRING_CHARS (nam));
+ return val ? scm_mem2string (val, strlen (val)) : SCM_BOOL_F;
}
+#undef FUNC_NAME
-#ifdef vms
-# define SYSTNAME "VMS"
-#endif
-#ifdef unix
-# define SYSTNAME "UNIX"
-#endif
-#ifdef MWC
-# define SYSTNAME "COHERENT"
-#endif
-#ifdef _Windows
-# define SYSTNAME "WINDOWS"
-#else
-# ifdef MSDOS
-# define SYSTNAME "MS-DOS"
-# endif
-#endif
-#ifdef __EMX__
-# define SYSTNAME "OS/2"
-#endif
-#ifdef __IBMC__
-# define SYSTNAME "OS/2"
-#endif
-#ifdef THINK_C
-# define SYSTNAME "THINKC"
-#endif
-#ifdef AMIGA
-# define SYSTNAME "AMIGA"
-#endif
-#ifdef atarist
-# define SYSTNAME "ATARIST"
-#endif
-#ifdef mach
-# define SYSTNAME "MACH"
-#endif
-#ifdef ARM_ULIB
-# define SYSTNAME "ACORN"
-#endif
-
-SCM_PROC(s_software_type, "software-type", 0, 0, 0, scm_software_type);
-
-SCM
-scm_software_type()
+/* simple exit, without unwinding the scheme stack or flushing ports. */
+SCM_DEFINE (scm_primitive_exit, "primitive-exit", 0, 1, 0,
+ (SCM status),
+ "Terminate the current process without unwinding the Scheme stack.\n"
+ "This is would typically be useful after a fork. The exit status\n"
+ "is @var{status} if supplied, otherwise zero.")
+#define FUNC_NAME s_scm_primitive_exit
{
-#ifdef nosve
- return SCM_CAR(scm_intern("nosve", 5));
-#else
- return SCM_CAR(scm_intern(SYSTNAME, sizeof SYSTNAME/sizeof(char) -1));
-#endif
+ int cstatus = 0;
+ if (!SCM_UNBNDP (status))
+ {
+ SCM_VALIDATE_INUM (1, status);
+ cstatus = SCM_INUM (status);
+ }
+ exit (cstatus);
}
+#undef FUNC_NAME
void
scm_init_simpos ()
{
-#include "simpos.x"
+#include "libguile/simpos.x"
}
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff