blob: 94ed6b8b827576de695118852de4af56e69a5123 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/* Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org>
*
* GNU Library General Public License (LGPL) version 2 or later.
*
* Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details.
*/
#include <features.h>
#ifdef __USE_GNU
#include "_stdio.h"
#include <stdarg.h>
libc_hidden_proto(fflush_unlocked)
libc_hidden_proto(vdprintf)
int vdprintf(int filedes, const char * __restrict format, va_list arg)
{
FILE f;
int rv;
#ifdef __STDIO_BUFFERS
char buf[64]; /* TODO: provide _optional_ buffering? */
f.__bufend = (unsigned char *) buf + sizeof(buf);
f.__bufstart = (unsigned char *) buf;
__STDIO_STREAM_DISABLE_GETC(&f);
__STDIO_STREAM_DISABLE_PUTC(&f);
__STDIO_STREAM_INIT_BUFREAD_BUFPOS(&f);
#endif
/* __STDIO_STREAM_RESET_GCS(&f); */
#ifdef __UCLIBC_HAS_GLIBC_CUSTOM_STREAMS__
f.__cookie = &(f.__filedes);
f.__gcs.read = NULL;
f.__gcs.write = _cs_write;
f.__gcs.seek = NULL;
f.__gcs.close = NULL;
#endif
f.__filedes = filedes;
f.__modeflags = (__FLAG_NARROW|__FLAG_WRITEONLY|__FLAG_WRITING);
#ifdef __UCLIBC_HAS_WCHAR__
f.__ungot_width[0] = 0;
#endif /* __UCLIBC_HAS_WCHAR__ */
#ifdef __STDIO_MBSTATE
__INIT_MBSTATE(&(f.__state));
#endif /* __STDIO_MBSTATE */
/* _vfprintf_internal doesn't do any locking, locking init is here
* only because of fflush_unlocked. TODO? */
#ifdef __UCLIBC_HAS_THREADS__
f.__user_locking = 1; /* Set user locking. */
__stdio_init_mutex(&f.__lock);
#endif
f.__nextopen = NULL;
rv = _vfprintf_internal(&f, format, arg);
#ifdef __STDIO_BUFFERS
/* If not buffering, then fflush is unnecessary. */
if ((rv > 0) && fflush_unlocked(&f)) {
rv = -1;
}
#endif
assert(rv >= -1);
return rv;
}
libc_hidden_def(vdprintf)
#endif
|
