1 | /* Copyright (C) 1991-2022 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <stdarg.h> |
19 | #include <stdio.h> |
20 | #include <string.h> |
21 | #include <hurd.h> |
22 | |
23 | #include <libioP.h> |
24 | |
25 | static ssize_t |
26 | do_write (void *cookie, const char *buf, size_t n) |
27 | { |
28 | error_t error = __io_write ((io_t) cookie, buf, n, -1, |
29 | (mach_msg_type_number_t *) &n); |
30 | if (error) |
31 | return __hurd_fail (err: error); |
32 | return n; |
33 | } |
34 | |
35 | /* Write formatted output to PORT, a Mach port supporting the i/o protocol, |
36 | according to the format string FORMAT, using the argument list in ARG. */ |
37 | int |
38 | vpprintf (io_t port, const char *format, va_list arg) |
39 | { |
40 | int done; |
41 | |
42 | struct locked_FILE |
43 | { |
44 | struct _IO_cookie_file cfile; |
45 | #ifdef _IO_MTSAFE_IO |
46 | _IO_lock_t lock; |
47 | #endif |
48 | } temp_f; |
49 | #ifdef _IO_MTSAFE_IO |
50 | temp_f.cfile.__fp.file._lock = &temp_f.lock; |
51 | #endif |
52 | |
53 | _IO_cookie_init (cfile: &temp_f.cfile, _IO_NO_READS, |
54 | cookie: (void *) port, fns: (cookie_io_functions_t) { write: do_write }); |
55 | |
56 | done = __vfprintf_internal (fp: &temp_f.cfile.__fp.file, format, ap: arg, mode_flags: 0); |
57 | |
58 | return done; |
59 | } |
60 | |