1 //===========================================================================
5 // ANSI Stdio vsnprintf() function
7 //===========================================================================
8 //####ECOSGPLCOPYRIGHTBEGIN####
9 // -------------------------------------------
10 // This file is part of eCos, the Embedded Configurable Operating System.
11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
13 // eCos is free software; you can redistribute it and/or modify it under
14 // the terms of the GNU General Public License as published by the Free
15 // Software Foundation; either version 2 or (at your option) any later version.
17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
22 // You should have received a copy of the GNU General Public License along
23 // with eCos; if not, write to the Free Software Foundation, Inc.,
24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
26 // As a special exception, if other files instantiate templates or use macros
27 // or inline functions from this file, or you compile this file and link it
28 // with other works to produce a work based on this file, this file does not
29 // by itself cause the resulting work to be covered by the GNU General Public
30 // License. However the source code for this file must still be made available
31 // in accordance with section (3) of the GNU General Public License.
33 // This exception does not invalidate any other reasons why a work based on
34 // this file might be covered by the GNU General Public License.
36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
37 // at http://sources.redhat.com/ecos/ecos-license/
38 // -------------------------------------------
39 //####ECOSGPLCOPYRIGHTEND####
40 //===========================================================================
41 //#####DESCRIPTIONBEGIN####
43 // Author(s): jlarmour
44 // Contributors: jlarmour
50 //####DESCRIPTIONEND####
52 //===========================================================================
56 #include <pkgconf/libc_stdio.h> // Configuration header
60 #include <cyg/infra/cyg_type.h> // Common project-wide type definitions
61 #include <stddef.h> // NULL and size_t from compiler
62 #include <stdio.h> // header for this file
63 #include <errno.h> // error codes
64 #include <cyg/libc/stdio/stream.hxx>// Cyg_StdioStream
66 #include <cyg/libc/stdio/io.inl> // I/O system inlines
70 class Cyg_VsnprintfStream: public Cyg_OutputStream
73 Cyg_VsnprintfStream(char* s): s_(s) {}
75 virtual ~Cyg_VsnprintfStream() { *s_ = '\0'; }
77 virtual Cyg_ErrNo write( const cyg_uint8 *buffer,
78 cyg_ucount32 buffer_length, cyg_ucount32 *bytes_written );
80 virtual Cyg_ErrNo get_error( void ) { return ENOERR; }
87 Cyg_VsnprintfStream::write(
88 const cyg_uint8 *buffer,
89 cyg_ucount32 buffer_length,
90 cyg_ucount32 *bytes_written )
93 char const *src = (char const *)buffer;
94 char const *end = src + buffer_length;
98 *bytes_written = buffer_length;
103 vsnprintf( char *s, size_t size, const char *format, va_list arg ) __THROW
105 Cyg_VsnprintfStream stream(s);
106 return vfnprintf( (FILE *)(void *)&stream, size, format, arg );