1 /*-
2 * Copyright (c) 2005 Poul-Henning Kamp
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: src/lib/libc/stdio/xprintf_errno.c,v 1.1 2006/01/25 12:45:24 phk Exp $
27 */
28
29 #include "namespace.h"
30 #include <stdio.h>
31 #include <string.h>
32 #include <stdlib.h>
33 #include <wchar.h>
34 #include <vis.h>
35 #include <assert.h>
36 #include <sys/time.h>
37 #include "un-namespace.h"
38
39 #include "printf.h"
40
41 int
__printf_arginfo_errno(const struct printf_info * pi __unused,size_t n,int * argt)42 __printf_arginfo_errno(const struct printf_info *pi __unused, size_t n,
43 int *argt)
44 {
45
46 assert(n >= 1);
47 argt[0] = PA_INT;
48 return (1);
49 }
50
51 int
__printf_render_errno(struct __printf_io * io,const struct printf_info * pi __unused,const void * const * arg)52 __printf_render_errno(struct __printf_io *io,
53 const struct printf_info *pi __unused,
54 const void *const *arg)
55 {
56 int ret, error;
57 char buf[64];
58 const char *p;
59
60 ret = 0;
61 error = *((const int *)arg[0]);
62 if (error >= 0 && error < sys_nerr) {
63 p = strerror(error);
64 return (__printf_out(io, pi, p, strlen(p)));
65 }
66 sprintf(buf, "errno=%d/0x%x", error, error);
67 ret += __printf_out(io, pi, buf, strlen(buf));
68 __printf_flush(io);
69 return(ret);
70 }
71