annotate liboctave/oct-group.h @ 14193:72aebe619641 stable rc-3-6-0-0

3.6.0-rc0 release candidate * configure.ac (AC_INIT): Version is now 3.6.0-rc0. (OCTAVE_RELEASE_DATE): Now 2012-01-10. (OCTAVE_API_VERSION_NUMBER): Now 47.
author John W. Eaton <jwe@octave.org>
date Tue, 10 Jan 2012 16:43:41 -0500
parents 72c96de7a403
children 3d8ace26c5b4
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1 /*
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2
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3 Copyright (C) 1996-2012 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if !defined (octave_group_h)
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24 #define octave_group_h 1
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25
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26 #include <string>
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27
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28 #include <sys/types.h>
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29
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30 #include "str-vec.h"
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31
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32 class
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33 OCTAVE_API
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34 octave_group
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35 {
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36 public:
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37
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38 octave_group (void)
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39 : gr_name (), gr_passwd (), gr_gid (0), gr_mem (), valid (false)
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40 { }
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41
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42 octave_group (const octave_group& gr)
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43 : gr_name (gr.gr_name), gr_passwd (gr.gr_passwd),
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44 gr_gid (gr.gr_gid), gr_mem (gr.gr_mem), valid (gr.valid)
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45 { }
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46
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47 octave_group& operator = (const octave_group& gr)
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48 {
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49 if (this != &gr)
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50 {
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51 gr_name = gr.gr_name;
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52 gr_passwd = gr.gr_passwd;
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53 gr_gid = gr.gr_gid;
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54 gr_mem = gr.gr_mem;
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55 valid = gr.valid;
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56 }
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57
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58 return *this;
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59 }
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60
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61 std::string name (void) const;
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62
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63 std::string passwd (void) const;
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64
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65 gid_t gid (void) const;
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66
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67 string_vector mem (void) const;
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68
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69 bool ok (void) const { return valid; }
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70
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71 operator bool () const { return ok (); }
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72
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73 static octave_group getgrent (void);
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74 static octave_group getgrent (std::string& msg);
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75
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76 static octave_group getgrgid (gid_t gid);
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77 static octave_group getgrgid (gid_t gid, std::string& msg);
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79 static octave_group getgrnam (const std::string& nm);
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80 static octave_group getgrnam (const std::string& nm, std::string& msg);
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81
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82 static int setgrent (void);
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83 static int setgrent (std::string& msg);
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84
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85 static int endgrent (void);
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86 static int endgrent (std::string& msg);
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87
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88 private:
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89
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90 // The group name.
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91 std::string gr_name;
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92
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93 // The group password.
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94 std::string gr_passwd;
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95
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96 // The numeric group id.
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97 gid_t gr_gid;
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98
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99 // The members of the group;
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100 string_vector gr_mem;
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101
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102 // Flag that says whether we have been properly initialized.
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103 bool valid;
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104
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105 // This is how we will create an octave_group object from a pointer
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106 // to a struct group.
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107 octave_group (void *p, std::string& msg);
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108
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109 void gripe_invalid (void) const;
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110 };
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111
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112 #endif