Mercurial > dropbear

annotate loginrec.h @ 1938:77bc00dcc19f default tip main master

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Bump version to 2022.82
author Matt Johnston <matt@ucc.asn.au>
date Fri, 01 Apr 2022 14:43:27 +0800
parents 1ed6f39e8aa4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1036
deed0571cacc DROPBEAR_ prefix for include guards to avoid collisions
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1 #ifndef DROPBEAR_HAVE_LOGINREC_H_
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2 #define DROPBEAR_HAVE_LOGINREC_H_
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3
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4 /*
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5 * Copyright (c) 2000 Andre Lucas. All rights reserved.
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6 *
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7 * Redistribution and use in source and binary forms, with or without
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8 * modification, are permitted provided that the following conditions
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9 * are met:
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10 * 1. Redistributions of source code must retain the above copyright
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11 * notice, this list of conditions and the following disclaimer.
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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26 */
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27
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28 /**
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29 ** loginrec.h: platform-independent login recording and lastlog retrieval
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30 **/
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31
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32 #include "includes.h"
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33
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34 /* RCSID("Id: loginrec.h,v 1.2 2004/05/04 10:17:43 matt Exp "); */
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35
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36 /* The following #defines are from OpenSSH's defines.h, required for loginrec */
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37
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38 /* FIXME: put default paths back in */
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39 #ifndef UTMP_FILE
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40 # ifdef _PATH_UTMP
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41 # define UTMP_FILE _PATH_UTMP
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42 # else
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43 # ifdef CONF_UTMP_FILE
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44 # define UTMP_FILE CONF_UTMP_FILE
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45 # endif
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46 # endif
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47 #endif
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48 #ifndef WTMP_FILE
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49 # ifdef _PATH_WTMP
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50 # define WTMP_FILE _PATH_WTMP
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51 # else
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52 # ifdef CONF_WTMP_FILE
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53 # define WTMP_FILE CONF_WTMP_FILE
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54 # endif
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55 # endif
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56 #endif
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57 /* pick up the user's location for lastlog if given */
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58 #ifndef LASTLOG_FILE
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59 # ifdef _PATH_LASTLOG
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60 # define LASTLOG_FILE _PATH_LASTLOG
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61 # else
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62 # ifdef CONF_LASTLOG_FILE
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63 # define LASTLOG_FILE CONF_LASTLOG_FILE
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64 # endif
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65 # endif
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66 #endif
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67
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68
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69 /* The login() library function in libutil is first choice */
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70 #if defined(HAVE_LOGIN) && !defined(DISABLE_LOGIN)
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71 # define USE_LOGIN
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72
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73 #else
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74 /* Simply select your favourite login types. */
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75 /* Can't do if-else because some systems use several... <sigh> */
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76 # if defined(HAVE_UTMPX_H) && defined(UTMPX_FILE) && !defined(DISABLE_UTMPX)
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77 # define USE_UTMPX
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78 # endif
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79 # if defined(HAVE_UTMP_H) && defined(UTMP_FILE) && !defined(DISABLE_UTMP)
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80 # define USE_UTMP
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81 # endif
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82 # if defined(WTMPX_FILE) && !defined(DISABLE_WTMPX)
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83 # define USE_WTMPX
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84 # endif
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85 # if defined(WTMP_FILE) && !defined(DISABLE_WTMP)
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86 # define USE_WTMP
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87 # endif
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88
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89 #endif
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90
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91 /* I hope that the presence of LASTLOG_FILE is enough to detect this */
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92 #if defined(LASTLOG_FILE) && !defined(DISABLE_LASTLOG)
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93 # define USE_LASTLOG
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94 #endif
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95
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96
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97 /**
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98 ** you should use the login_* calls to work around platform dependencies
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99 **/
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100
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101 /*
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102 * login_netinfo structure
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103 */
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104
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105 union login_netinfo {
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106 struct sockaddr sa;
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107 struct sockaddr_in sa_in;
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108 #ifdef HAVE_STRUCT_SOCKADDR_STORAGE
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109 struct sockaddr_storage sa_storage;
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110 #endif
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111 };
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112
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113 /*
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114 * * logininfo structure *
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115 */
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116 /* types - different to utmp.h 'type' macros */
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117 /* (though set to the same value as linux, openbsd and others...) */
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118 #define LTYPE_LOGIN 7
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119 #define LTYPE_LOGOUT 8
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120
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121 /* string lengths - set very long */
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122 #define LINFO_PROGSIZE 64
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123 #define LINFO_LINESIZE 64
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124 #define LINFO_NAMESIZE 64
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125 #define LINFO_HOSTSIZE 256
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126
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127 struct logininfo {
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128 char progname[LINFO_PROGSIZE]; /* name of program (for PAM) */
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129 int progname_null;
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130 short int type; /* type of login (LTYPE_*) */
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131 int pid; /* PID of login process */
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132 int uid; /* UID of this user */
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133 char line[LINFO_LINESIZE]; /* tty/pty name */
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134 char username[LINFO_NAMESIZE]; /* login username */
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135 char hostname[LINFO_HOSTSIZE]; /* remote hostname */
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136 /* 'exit_status' structure components */
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137 int exit; /* process exit status */
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138 int termination; /* process termination status */
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139 /* struct timeval (sys/time.h) isn't always available, if it isn't we'll
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140 * use time_t's value as tv_sec and set tv_usec to 0
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141 */
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142 unsigned int tv_sec;
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143 unsigned int tv_usec;
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144 union login_netinfo hostaddr; /* caller's host address(es) */
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145 }; /* struct logininfo */
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146
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147 /*
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148 * login recording functions
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149 */
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150
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151 /** 'public' functions */
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152
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153 struct logininfo *login_alloc_entry(int pid, const char *username,
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154 const char *hostname, const char *line);
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155 /* free a structure */
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156 void login_free_entry(struct logininfo *li);
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157 /* fill out a pre-allocated structure with useful information */
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158 int login_init_entry(struct logininfo *li, int pid, const char *username,
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159 const char *hostname, const char *line);
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160 /* place the current time in a logininfo struct */
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161 void login_set_current_time(struct logininfo *li);
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162
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163 /* record the entry */
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164 int login_login (struct logininfo *li);
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165 int login_logout(struct logininfo *li);
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166 #ifdef LOGIN_NEEDS_UTMPX
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167 int login_utmp_only(struct logininfo *li);
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168 #endif
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169
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170 /** End of public functions */
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171
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172 /* record the entry */
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173 int login_write (struct logininfo *li);
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174 int login_log_entry(struct logininfo *li);
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175
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176 /* produce various forms of the line filename */
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177 char *line_fullname(char *dst, const char *src, size_t dstsize);
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178 char *line_stripname(char *dst, const char *src, size_t dstsize);
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179 char *line_abbrevname(char *dst, const char *src, size_t dstsize);
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180
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181 #endif /* DROPBEAR_HAVE_LOGINREC_H_ */