4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qapi/error.h"
27 #include "qemu/module.h"
28 #include "qemu/option.h"
29 #include "chardev/char.h"
32 #include "chardev/char-win.h"
34 #include "chardev/char-fd.h"
37 static void qmp_chardev_open_file(Chardev *chr,
38 ChardevBackend *backend,
42 ChardevFile *file = backend->u.file.data;
49 error_setg(errp, "input file not supported");
53 if (file->has_append && file->append) {
54 /* Append to file if it already exists. */
55 accessmode = FILE_GENERIC_WRITE & ~FILE_WRITE_DATA;
58 /* Truncate file if it already exists. */
59 accessmode = GENERIC_WRITE;
60 flags = CREATE_ALWAYS;
63 out = CreateFile(file->out, accessmode, FILE_SHARE_READ, NULL, flags,
64 FILE_ATTRIBUTE_NORMAL, NULL);
65 if (out == INVALID_HANDLE_VALUE) {
66 error_setg(errp, "open %s failed", file->out);
70 win_chr_set_file(chr, out, false);
72 int flags, in = -1, out;
74 flags = O_WRONLY | O_CREAT | O_BINARY;
75 if (file->has_append && file->append) {
81 out = qmp_chardev_open_file_source(file->out, flags, errp);
88 in = qmp_chardev_open_file_source(file->in, flags, errp);
95 qemu_chr_open_fd(chr, in, out);
99 static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
102 const char *path = qemu_opt_get(opts, "path");
105 backend->type = CHARDEV_BACKEND_KIND_FILE;
107 error_setg(errp, "chardev: file: no filename given");
110 file = backend->u.file.data = g_new0(ChardevFile, 1);
111 qemu_chr_parse_common(opts, qapi_ChardevFile_base(file));
112 file->out = g_strdup(path);
114 file->has_append = true;
115 file->append = qemu_opt_get_bool(opts, "append", false);
118 static void char_file_class_init(ObjectClass *oc, void *data)
120 ChardevClass *cc = CHARDEV_CLASS(oc);
122 cc->parse = qemu_chr_parse_file_out;
123 cc->open = qmp_chardev_open_file;
126 static const TypeInfo char_file_type_info = {
127 .name = TYPE_CHARDEV_FILE,
129 .parent = TYPE_CHARDEV_WIN,
131 .parent = TYPE_CHARDEV_FD,
133 .class_init = char_file_class_init,
136 static void register_types(void)
138 type_register_static(&char_file_type_info);
141 type_init(register_types);