1 | /* SPDX-License-Identifier: MIT */ |
2 | /* |
3 | * libslirp io streams |
4 | * |
5 | * Copyright (c) 2018 Red Hat, Inc. |
6 | * |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
8 | * of this software and associated documentation files (the "Software"), to deal |
9 | * in the Software without restriction, including without limitation the rights |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
11 | * copies of the Software, and to permit persons to whom the Software is |
12 | * furnished to do so, subject to the following conditions: |
13 | * |
14 | * The above copyright notice and this permission notice shall be included in |
15 | * all copies or substantial portions of the Software. |
16 | * |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
23 | * THE SOFTWARE. |
24 | */ |
25 | #include "stream.h" |
26 | #include <glib.h> |
27 | |
28 | bool slirp_istream_read(SlirpIStream *f, void *buf, size_t size) |
29 | { |
30 | return f->read_cb(buf, size, f->opaque) == size; |
31 | } |
32 | |
33 | bool slirp_ostream_write(SlirpOStream *f, const void *buf, size_t size) |
34 | { |
35 | return f->write_cb(buf, size, f->opaque) == size; |
36 | } |
37 | |
38 | uint8_t slirp_istream_read_u8(SlirpIStream *f) |
39 | { |
40 | uint8_t b; |
41 | |
42 | if (slirp_istream_read(f, &b, sizeof(b))) { |
43 | return b; |
44 | } |
45 | |
46 | return 0; |
47 | } |
48 | |
49 | bool slirp_ostream_write_u8(SlirpOStream *f, uint8_t b) |
50 | { |
51 | return slirp_ostream_write(f, &b, sizeof(b)); |
52 | } |
53 | |
54 | uint16_t slirp_istream_read_u16(SlirpIStream *f) |
55 | { |
56 | uint16_t b; |
57 | |
58 | if (slirp_istream_read(f, &b, sizeof(b))) { |
59 | return GUINT16_FROM_BE(b); |
60 | } |
61 | |
62 | return 0; |
63 | } |
64 | |
65 | bool slirp_ostream_write_u16(SlirpOStream *f, uint16_t b) |
66 | { |
67 | b = GUINT16_TO_BE(b); |
68 | return slirp_ostream_write(f, &b, sizeof(b)); |
69 | } |
70 | |
71 | uint32_t slirp_istream_read_u32(SlirpIStream *f) |
72 | { |
73 | uint32_t b; |
74 | |
75 | if (slirp_istream_read(f, &b, sizeof(b))) { |
76 | return GUINT32_FROM_BE(b); |
77 | } |
78 | |
79 | return 0; |
80 | } |
81 | |
82 | bool slirp_ostream_write_u32(SlirpOStream *f, uint32_t b) |
83 | { |
84 | b = GUINT32_TO_BE(b); |
85 | return slirp_ostream_write(f, &b, sizeof(b)); |
86 | } |
87 | |
88 | int16_t slirp_istream_read_i16(SlirpIStream *f) |
89 | { |
90 | int16_t b; |
91 | |
92 | if (slirp_istream_read(f, &b, sizeof(b))) { |
93 | return GINT16_FROM_BE(b); |
94 | } |
95 | |
96 | return 0; |
97 | } |
98 | |
99 | bool slirp_ostream_write_i16(SlirpOStream *f, int16_t b) |
100 | { |
101 | b = GINT16_TO_BE(b); |
102 | return slirp_ostream_write(f, &b, sizeof(b)); |
103 | } |
104 | |
105 | int32_t slirp_istream_read_i32(SlirpIStream *f) |
106 | { |
107 | int32_t b; |
108 | |
109 | if (slirp_istream_read(f, &b, sizeof(b))) { |
110 | return GINT32_FROM_BE(b); |
111 | } |
112 | |
113 | return 0; |
114 | } |
115 | |
116 | bool slirp_ostream_write_i32(SlirpOStream *f, int32_t b) |
117 | { |
118 | b = GINT32_TO_BE(b); |
119 | return slirp_ostream_write(f, &b, sizeof(b)); |
120 | } |
121 | |