163 lines
4.0 KiB
C
163 lines
4.0 KiB
C
/* $NetBSD: snprintf.c,v 1.4 1995/02/02 02:10:35 jtc Exp $ */
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/*-
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Chris Torek.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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static char sccsid[] = "@(#)snprintf.c 8.1 (Berkeley) 6/4/93";
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#endif
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static char rcsid[] = "$NetBSD: snprintf.c,v 1.4 1995/02/02 02:10:35 jtc Exp $";
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#endif /* LIBC_SCCS and not lint */
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#define _KERNEL
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#include "ixemul.h"
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#include "my_varargs.h"
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#include <stdio.h>
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#ifdef NATIVE_MORPHOS
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#define vfprintf my_vfprintf
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int vfprintf(FILE *fp, const char *fmt0, my_va_list ap);
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#endif
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int
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snprintf(char *str, size_t n, char const *fmt, ...)
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{
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int ret;
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my_va_list ap;
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FILE f;
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my_va_start(ap, fmt);
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f._flags = __SWR | __SSTR;
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/* To be compatible with glibc, we need to handle the special case where n is 0. */
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if ((int)n < 1)
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{
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f._bf._base = f._p = (void *)-1;
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f._bf._size = f._w = 0;
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}
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else
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{
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f._bf._base = f._p = (unsigned char *)str;
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f._bf._size = f._w = n - 1;
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}
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ret = vfprintf(&f, fmt, ap);
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if (f._p != (void *)-1)
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{
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*f._p = 0;
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}
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my_va_end(ap);
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return (ret);
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}
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#ifdef NATIVE_MORPHOS
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int
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_varargs68k_snprintf(char *str, size_t n, const char *fmt, char *ap1)
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{
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int ret;
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my_va_list ap;
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FILE f;
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my_va_init_68k(ap, ap1);
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f._flags = __SWR | __SSTR;
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/* To be compatible with glibc, we need to handle the special case where n is 0. */
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if ((int)n < 1)
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{
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f._bf._base = f._p = (void *)-1;
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f._bf._size = f._w = 0;
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dprintf("null varargs68k_snprintf fp 0x%lx\n", &f);
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}
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else
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{
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f._bf._base = f._p = (unsigned char *)str;
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f._bf._size = f._w = n - 1;
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}
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ret = vfprintf(&f, fmt, ap);
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if (f._p != (void *)-1)
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{
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*f._p = 0;
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}
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return (ret);
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}
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asm(" .section \".text\"
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.type _stk_snprintf,@function
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.globl _stk_snprintf
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_stk_snprintf:
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andi. 11,1,15
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mr 12,1
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bne- .align_snprintf
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b snprintf
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.align_snprintf:
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addi 11,11,128
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mflr 0
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neg 11,11
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stw 0,4(1)
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stwux 1,1,11
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stw 6,20(1)
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stw 7,24(1)
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stw 8,28(1)
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stw 9,32(1)
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stw 10,36(1)
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bc 4,6,.nofloat_snprintf
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stfd 1,40(1)
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stfd 2,48(1)
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stfd 3,56(1)
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stfd 4,64(1)
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stfd 5,72(1)
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stfd 6,80(1)
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stfd 7,88(1)
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stfd 8,96(1)
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.nofloat_snprintf:
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addi 6,1,104
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lis 0,0x300
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addi 12,12,8
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addi 11,1,8
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stw 0,0(6)
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stw 12,4(6)
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stw 11,8(6)
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bl vsnprintf
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lwz 1,0(1)
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lwz 0,4(1)
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mtlr 0
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blr
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");
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#endif
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