libguile/simpos.c

   1 /*      Copyright (C) 1995,1996 Free Software Foundation, Inc.
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2, or (at your option)
   6  * any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this software; see the file COPYING.  If not, write to
  15  * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  16  * Boston, MA 02111-1307 USA
  17  *
  18  * As a special exception, the Free Software Foundation gives permission
  19  * for additional uses of the text contained in its release of GUILE.
  20  *
  21  * The exception is that, if you link the GUILE library with other files
  22  * to produce an executable, this does not by itself cause the
  23  * resulting executable to be covered by the GNU General Public License.
  24  * Your use of that executable is in no way restricted on account of
  25  * linking the GUILE library code into it.
  26  *
  27  * This exception does not however invalidate any other reasons why
  28  * the executable file might be covered by the GNU General Public License.
  29  *
  30  * This exception applies only to the code released by the
  31  * Free Software Foundation under the name GUILE.  If you copy
  32  * code from other Free Software Foundation releases into a copy of
  33  * GUILE, as the General Public License permits, the exception does
  34  * not apply to the code that you add in this way.  To avoid misleading
  35  * anyone as to the status of such modified files, you must delete
  36  * this exception notice from them.
  37  *
  38  * If you write modifications of your own for GUILE, it is your choice
  39  * whether to permit this exception to apply to your modifications.
  40  * If you do not wish that, delete this exception notice.  */
  41 \f
  42
  43 #include <stdio.h>
  44 #include "_scm.h"
  45
  46 #include "scmsigs.h"
  47 #include "simpos.h"
  48
  49 #ifdef HAVE_STRING_H
  50 #include <string.h>
  51 #endif
  52 #ifdef HAVE_UNISTD_H
  53 #include <unistd.h>
  54 #endif
  55
  56 \f
  57 extern int system();
  58 \f
  59
  60 #ifndef _Windows
  61 SCM_PROC(s_system, "system", 1, 0, 0, scm_system);
  62
  63 SCM
  64 scm_system(cmd)
  65      SCM cmd;
  66 {
  67   SCM_ASSERT(SCM_NIMP(cmd) && SCM_ROSTRINGP(cmd), cmd, SCM_ARG1, s_system);
  68   if (SCM_ROSTRINGP (cmd))
  69     cmd = scm_makfromstr (SCM_ROCHARS (cmd), SCM_ROLENGTH (cmd), 0);
  70 # ifdef AZTEC_C
  71   cmd = SCM_MAKINUM(Execute(SCM_ROCHARS(cmd), 0, 0));
  72 # else
  73   cmd = SCM_MAKINUM(0L+system(SCM_ROCHARS(cmd)));
  74 # endif
  75   return cmd;
  76 }
  77 #endif
  78
  79 extern char *getenv();
  80 SCM_PROC (s_getenv, "getenv", 1, 0, 0, scm_getenv);
  81
  82 SCM
  83 scm_getenv(nam)
  84      SCM nam;
  85 {
  86   char *val;
  87   SCM_ASSERT(SCM_NIMP(nam) && SCM_ROSTRINGP(nam), nam, SCM_ARG1, s_getenv);
  88   if (SCM_ROSTRINGP (nam))
  89     nam = scm_makfromstr (SCM_ROCHARS (nam), SCM_ROLENGTH (nam), 0);
  90   val = getenv(SCM_CHARS(nam));
  91   return (val) ? scm_makfromstr(val, (scm_sizet)strlen(val), 0) : SCM_BOOL_F;
  92 }
  93
  94 /* I have a feeling this whole arrangement below is a bad idea.  One
  95    should always test for the presence or absence of a particular
  96    feature, instead of checking the system name.  Older versions of a
  97    system may lack features posessed by new ones, and a feature
  98    appearing on one system will soon appear on others.  And autoconf
  99    provides the mechanisms for detecting features.  -JimB  */
 100
 101 #ifdef _AIX
 102 # define SYSTNAME "AIX"
 103 #endif
 104 #ifdef vms
 105 # define SYSTNAME "VMS"
 106 #endif
 107 #if defined (unix) || defined (__unix)
 108 # define SYSTNAME "UNIX"
 109 #endif
 110 #ifdef MWC
 111 # define SYSTNAME "COHERENT"
 112 #endif
 113 #ifdef _Windows
 114 # define SYSTNAME "WINDOWS"
 115 #else
 116 # ifdef MSDOS
 117 #  define SYSTNAME "MS-DOS"
 118 # endif
 119 #endif
 120 #ifdef __EMX__
 121 # define SYSTNAME "OS/2"
 122 #endif
 123 #ifdef __IBMC__
 124 # define SYSTNAME "OS/2"
 125 #endif
 126 #ifdef THINK_C
 127 # define SYSTNAME "THINKC"
 128 #endif
 129 #ifdef AMIGA
 130 # define SYSTNAME "AMIGA"
 131 #endif
 132 #ifdef atarist
 133 # define SYSTNAME "ATARIST"
 134 #endif
 135 #ifdef mach
 136 # define SYSTNAME "MACH"
 137 #endif
 138 #ifdef ARM_ULIB
 139 # define SYSTNAME "ACORN"
 140 #endif
 141
 142 SCM_PROC(s_software_type, "software-type", 0, 0, 0, scm_software_type);
 143
 144 SCM
 145 scm_software_type()
 146 {
 147 #ifdef nosve
 148   return SCM_CAR(scm_intern("nosve", 5));
 149 #else
 150   return SCM_CAR(scm_intern(SYSTNAME, sizeof SYSTNAME/sizeof(char) -1));
 151 #endif
 152 }
 153
 154
 155 void
 156 scm_init_simpos ()
 157 {
 158 #include "simpos.x"
 159 }
 160