Mercurial > 510Connectbot
annotate app/src/main/java/ch/ethz/ssh2/channel/ChannelInputStream.java @ 510:7953570e5210
update to ganymed-ssh2 tag 263 and fix hmac-sha2-512
author | Carl Byington <carl@five-ten-sg.com> |
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date | Wed, 01 Feb 2023 17:55:29 -0700 |
parents | d29cce60f393 |
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1 /* |
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2 * Copyright (c) 2006-2011 Christian Plattner. All rights reserved. |
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3 * Please refer to the LICENSE.txt for licensing details. |
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4 */ |
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5 package ch.ethz.ssh2.channel; |
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6 |
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7 import java.io.IOException; |
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8 import java.io.InputStream; |
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9 |
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10 /** |
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11 * ChannelInputStream. |
307 | 12 * |
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13 * @author Christian Plattner |
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14 * @version 2.50, 03/15/10 |
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15 */ |
307 | 16 public final class ChannelInputStream extends InputStream { |
17 Channel c; | |
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18 |
307 | 19 boolean isClosed = false; |
20 boolean isEOF = false; | |
21 boolean extendedFlag = false; | |
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22 |
307 | 23 ChannelInputStream(Channel c, boolean isExtended) { |
24 this.c = c; | |
25 this.extendedFlag = isExtended; | |
26 } | |
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27 |
307 | 28 @Override |
29 public int available() throws IOException { | |
30 if (isEOF) | |
31 return 0; | |
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32 |
307 | 33 int avail = c.cm.getAvailable(c, extendedFlag); |
34 /* We must not return -1 on EOF */ | |
35 return (avail > 0) ? avail : 0; | |
36 } | |
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37 |
307 | 38 @Override |
39 public void close() throws IOException { | |
40 isClosed = true; | |
41 } | |
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42 |
307 | 43 @Override |
44 public int read(byte[] b, int off, int len) throws IOException { | |
45 if (b == null) | |
46 throw new NullPointerException(); | |
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47 |
307 | 48 if ((off < 0) || (len < 0) || ((off + len) > b.length) || ((off + len) < 0) || (off > b.length)) |
49 throw new IndexOutOfBoundsException(); | |
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50 |
307 | 51 if (len == 0) |
52 return 0; | |
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53 |
307 | 54 if (isEOF) |
55 return -1; | |
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56 |
307 | 57 int ret = c.cm.getChannelData(c, extendedFlag, b, off, len); |
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58 |
307 | 59 if (ret == -1) { |
60 isEOF = true; | |
61 } | |
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62 |
307 | 63 return ret; |
64 } | |
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65 |
307 | 66 @Override |
67 public int read(byte[] b) throws IOException { | |
68 return read(b, 0, b.length); | |
69 } | |
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70 |
307 | 71 @Override |
72 public int read() throws IOException { | |
73 /* Yes, this stream is pure and unbuffered, a single byte read() is slow */ | |
74 final byte b[] = new byte[1]; | |
75 int ret = read(b, 0, 1); | |
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76 |
307 | 77 if (ret != 1) |
78 return -1; | |
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79 |
307 | 80 return b[0] & 0xff; |
81 } | |
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82 } |