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annotate extern/vera/src/executable_path.cpp @ 655:cda30ca5bb76

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Irccd: style (controller) #782
author David Demelier <markand@malikania.fr>
date Tue, 27 Mar 2018 20:30:59 +0200
parents a7c0eb100760
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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548
a7c0eb100760 CMake: import vera++ 1.3.0, closes #729
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1 //
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2 // Copyright (C) 2014 Ben Key
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3 // Distributed under the Boost Software License, Version 1.0.
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4 // (See accompanying file LICENSE_1_0.txt or copy at
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5 // http://www.boost.org/LICENSE_1_0.txt)
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6 //
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7
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10 #include <boost/filesystem/operations.hpp>
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11 #include <boost/filesystem/path.hpp>
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12
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13 #include "executable_path.h"
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14
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15 #if defined(_WIN32)
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16
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17 # include <Windows.h>
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18
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19 std::string executable_path(const char *argv0)
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20 {
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21 char buf[1024] = {0};
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22 DWORD ret = GetModuleFileNameA(NULL, buf, sizeof(buf));
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23 if (ret == 0 || ret == sizeof(buf))
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24 {
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25 return executable_path_fallback(argv0);
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26 }
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27 return buf;
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28 }
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29
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30 #elif defined(__APPLE__)
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31
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32 # include <mach-o/dyld.h>
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33
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34 std::string executable_path(const char *argv0)
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35 {
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36 char buf[1024] = {0};
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37 uint32_t size = sizeof(buf);
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38 int ret = _NSGetExecutablePath(buf, &size);
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39 if (0 != ret)
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40 {
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41 return executable_path_fallback(argv0);
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42 }
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43 boost::filesystem::path full_path(
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44 boost::filesystem::system_complete(
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45 boost::filesystem::path(buf).normalize()));
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46 return full_path.string();
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47 }
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48
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49 #elif defined(sun) || defined(__sun)
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50
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51 # include <stdlib.h>
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52
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53 std::string executable_path(const char *argv0)
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54 {
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55 return getexecname();
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56 }
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57
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58 #elif defined(__FreeBSD__)
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59
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60 # include <sys/sysctl.h>
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61
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62 std::string executable_path(const char *argv0)
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63 {
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64 int mib[4] = {0};
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65 mib[0] = CTL_KERN;
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66 mib[1] = KERN_PROC;
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67 mib[2] = KERN_PROC_PATHNAME;
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68 mib[3] = -1;
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69 char buf[1024] = {0};
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70 size_t size = sizeof(buf);
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71 sysctl(mib, 4, buf, &size, NULL, 0);
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72 if (size == 0 || size == sizeof(buf))
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73 {
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74 return executable_path_fallback(argv0);
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75 }
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76 std::string path(buf, size);
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77 boost::filesystem::path full_path(
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78 boost::filesystem::system_complete(
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79 boost::filesystem::path(path).normalize()));
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80 return full_path.string();
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81 }
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82
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83 #elif defined(__linux__)
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84
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85 # include <unistd.h>
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86
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87 std::string executable_path(const char *argv0)
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88 {
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89 char buf[1024] = {0};
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90 ssize_t size = readlink("/proc/self/exe", buf, sizeof(buf));
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91 if (size == 0 || size == sizeof(buf))
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92 {
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93 return executable_path_fallback(argv0);
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94 }
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95 std::string path(buf, size);
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96 boost::filesystem::path full_path(
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97 boost::filesystem::system_complete(
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98 boost::filesystem::path(path).normalize()));
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99 return full_path.string();
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100 }
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101
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102 #else
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103
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104 std::string executable_path(const char *argv0)
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105 {
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106 return executable_path_fallback(argv0);
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107 }
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108
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109 #endif
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110
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111 std::string executable_path_fallback(const char *argv0)
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112 {
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113 if (0 == argv0 || 0 == argv0[0])
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114 {
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115 return "";
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116 }
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117 boost::filesystem::path full_path(
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118 boost::filesystem::system_complete(
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119 boost::filesystem::path(argv0)));
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120 return full_path.string();
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121 }