xref: /freebsd/libexec/rtld-elf/rtld_printf.h (revision dd41de95a84d979615a2ef11df6850622bf6184e)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright 2011 Konstantin Belousov <kib@FreeBSD.org>.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #ifndef RTLD_PRINTF_H
31 #define RTLD_PRINTF_H 1
32 
33 #include <sys/cdefs.h>
34 #include <stdarg.h>
35 #include <unistd.h>
36 
37 int rtld_snprintf(char *buf, size_t bufsize, const char *fmt, ...)
38     __printflike(3, 4);
39 int rtld_vsnprintf(char *buf, size_t bufsize, const char *fmt, va_list ap);
40 int rtld_vfdprintf(int fd, const char *fmt, va_list ap);
41 int rtld_fdprintf(int fd, const char *fmt, ...) __printflike(2, 3);
42 void rtld_fdputstr(int fd, const char *str);
43 void rtld_fdputchar(int fd, int c);
44 
45 #define	rtld_printf(...) rtld_fdprintf(STDOUT_FILENO, __VA_ARGS__)
46 #define	rtld_putstr(str) rtld_fdputstr(STDOUT_FILENO, (str))
47 #define	rtld_putchar(c) rtld_fdputchar(STDOUT_FILENO, (c))
48 
49 #endif
50