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91028c63bc
code which initialized them. - Reading/changing the errno variable is no longer done directly, but involves accessor functions. - References to the HUGE_VAL quantity now involve an accessor function, too. - Changed the manner in which the __huge_val constant is initialized by the __math_init() function. git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14824 87f5fb63-7c3d-0410-a384-fd976d0f7a62
135 lines
3.7 KiB
C
135 lines
3.7 KiB
C
/*
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* $Id: stdio_vasprintf.c,v 1.6 2005-02-03 16:56:16 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2005 by Olaf Barthel <olsen@sourcery.han.de>
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* All rights reserved.
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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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*
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* - 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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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _STDLIB_NULL_POINTER_CHECK_H
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#include "stdlib_null_pointer_check.h"
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#endif /* _STDLIB_NULL_POINTER_CHECK_H */
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/****************************************************************************/
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#ifndef _STDLIB_HEADERS_H
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#include "stdlib_headers.h"
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#endif /* _STDLIB_HEADERS_H */
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/****************************************************************************/
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#ifndef _STDIO_HEADERS_H
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#include "stdio_headers.h"
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#endif /* _STDIO_HEADERS_H */
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/****************************************************************************/
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/* The following is not part of the ISO 'C' (1994) standard. */
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/****************************************************************************/
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#undef vasprintf
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/****************************************************************************/
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__static int
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__vasprintf(const char *file,int line,char **ret,const char *format,va_list arg)
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{
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struct iob string_iob;
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int result = EOF;
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char local_buffer[32];
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ENTER();
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SHOWPOINTER(ret);
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SHOWSTRING(format);
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assert( ret != NULL && format != NULL && arg != NULL );
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#if defined(CHECK_FOR_NULL_POINTERS)
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{
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if(ret == NULL || format == NULL || format == arg)
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{
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SHOWMSG("invalid parameters");
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__set_errno(EFAULT);
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goto out;
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}
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}
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#endif /* CHECK_FOR_NULL_POINTERS */
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if(__check_abort_enabled)
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__check_abort();
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(*ret) = NULL;
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__initialize_iob(&string_iob,(HOOKFUNC)__vasprintf_hook_entry,
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NULL,
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local_buffer,sizeof(local_buffer),
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-1,
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-1,
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IOBF_IN_USE | IOBF_WRITE | IOBF_BUFFER_MODE_NONE | IOBF_INTERNAL);
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string_iob.iob_String = NULL;
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string_iob.iob_StringSize = 0;
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string_iob.iob_File = (char *)file;
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string_iob.iob_Line = line;
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result = vfprintf((FILE *)&string_iob,format,arg);
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if(result < 0)
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{
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SHOWMSG("ouch. that didn't work");
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if(string_iob.iob_String != NULL)
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__free(string_iob.iob_String,string_iob.iob_File,string_iob.iob_Line);
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goto out;
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}
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SHOWSTRING(string_iob.iob_String);
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(*ret) = string_iob.iob_String;
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out:
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RETURN(result);
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return(result);
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}
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/****************************************************************************/
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int
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vasprintf(char **ret,const char *format,va_list arg)
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{
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int result;
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result = __vasprintf(NULL,0,ret,format,arg);
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return(result);
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}
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