/[svn]/qsampler/trunk/src/qsamplerUtilities.cpp
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Contents of /qsampler/trunk/src/qsamplerUtilities.cpp

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Revision 1394 - (show annotations) (download)
Mon Oct 8 09:37:39 2007 UTC (16 years, 6 months ago) by capela
File size: 3401 byte(s)
- Missing null check on protocol_version in getRemoteLscpVersion().

1 // qsamplerUtilities.cpp
2 //
3 /****************************************************************************
4 Copyright (C) 2004-2007, rncbc aka Rui Nuno Capela. All rights reserved.
5
6 This program is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License
8 as published by the Free Software Foundation; either version 2
9 of the License, or (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License along
17 with this program; if not, write to the Free Software Foundation, Inc.,
18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19
20 *****************************************************************************/
21
22 #include "qsamplerUtilities.h"
23
24 #include "qsamplerMainForm.h"
25
26 #include <stdio.h>
27 #include <qregexp.h>
28
29 // converts the given file path into a path as expected by LSCP 1.2
30 QString lscpEscapePath ( const QString& sPath )
31 {
32 QString path(sPath);
33
34 // check if remote side supports LSCP escape sequences
35 const lscpVersion_t version = getRemoteLscpVersion();
36 if (version.major < 1 || version.minor < 2)
37 return path; // LSCP v1.2 or younger required
38
39 // replace POSIX path escape sequences (%HH) by LSCP escape sequences (\xHH)
40 // TODO: missing code for other systems like Windows
41 {
42 QRegExp regexp("%[0-9a-fA-F][0-9a-fA-F]");
43 for (int i = path.find(regexp); i >= 0; i = path.find(regexp, i + 3))
44 path.replace(i, 1, "\\x");
45 }
46
47 // replace all non-basic characters by LSCP escape sequences
48 {
49 const char pathSeparator = '/';
50 QRegExp regexp(QRegExp::escape("\\x") + "[0-9a-fA-F][0-9a-fA-F]");
51 for (int i = 0; i < int(path.length()); i++) {
52 // first skip all previously added LSCP escape sequences
53 if (path.find(regexp, i) == i) {
54 i += 3;
55 continue;
56 }
57 // now match all non-alphanumerics
58 // (we could exclude much more characters here, but that way
59 // we're sure it just works^TM)
60 const char c = path.at(i).latin1();
61 if (
62 !(c >= '0' && c <= '9') &&
63 !(c >= 'a' && c <= 'z') &&
64 !(c >= 'A' && c <= 'Z') &&
65 !(c == pathSeparator)
66 ) {
67 // convert the non-basic character into a LSCP escape sequence
68 char buf[5];
69 ::snprintf(buf, sizeof(buf), "\\x%2x", static_cast<unsigned char>(c));
70 path.replace(i, 1, buf);
71 i += 3;
72 }
73 }
74 }
75
76 return path;
77 }
78
79
80 lscpVersion_t getRemoteLscpVersion (void)
81 {
82 lscpVersion_t result = { 0, 0 };
83
84 qsamplerMainForm *pMainForm = qsamplerMainForm::getInstance();
85 if (pMainForm == NULL)
86 return result;
87 if (pMainForm->client() == NULL)
88 return result;
89
90 lscp_server_info_t* pServerInfo =
91 ::lscp_get_server_info(pMainForm->client());
92 if (pServerInfo && pServerInfo->protocol_version)
93 ::sscanf(pServerInfo->protocol_version, "%d.%d",
94 &result.major, &result.minor);
95
96 return result;
97 }

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