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- /*
- * This file is part of ixemul.library for the Amiga.
- * Copyright (C) 1991, 1992 Markus M. Wild
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- #define KERNEL
- #include "ixemul.h"
-
- #define alloca __builtin_alloca
-
- #define BASE_EXT_DECL
- #define BASE_PAR_DECL
- #define BASE_PAR_DECL0
- #define BASE_NAME ix.ix_dos_base
- __inline static BOOL SetVar(BASE_PAR_DECL UBYTE* name, UBYTE* buffer, long int size, long int flags)
- {
- BASE_EXT_DECL
- register BOOL res __asm("d0");
- register void *a6 __asm ("a6");
- register UBYTE* d1 __asm("d1");
- register UBYTE* d2 __asm("d2");
- register long int d3 __asm("d3");
- register long int d4 __asm("d4");
-
- a6 = BASE_NAME;
- d1 = name;
- d2 = buffer;
- d3 = size;
- d4 = flags;
- __asm volatile ("
- jsr a6@(-0x384)"
- : "=r" (res)
- : "r" (a6), "r" (d1), "r" (d2), "r" (d3), "r" (d4)
- : "d0", "d1", "a0", "a1", "d2", "d3", "d4");
- return res;
- }
-
- extern int _dos20;
-
- int
- setenv (const char *var, const char *val, ...)
- {
- int fd;
- char *name;
- int result = -1;
- int omask;
-
- /* under 2.0, use the system function */
- if (_dos20)
- {
- /* but when using the system, block signals, sigh.. */
- omask = syscall (SYS_sigsetmask , ~0);
- result = SetVar (var, val, -1, 0) ? 0 : -1;
- syscall (SYS_sigsetmask, omask);
- return result;
- }
- else
- {
- name = alloca (strlen(var) + sizeof("env:") + 1);
- strcpy(name, "env:");
- strcat(name, var);
- fd = syscall (SYS_open, name, O_WRONLY|O_CREAT|O_TRUNC, 0666);
- if (fd >= 0)
- {
- syscall (SYS_write, fd, val, strlen (val));
- syscall (SYS_close, fd);
- result = 0;
- }
- return result;
- }
- }
-