Mercurial > dropbear
annotate loginrec.h @ 1743:7d8462677355 fuzz
Disallow extra kexinit messages
author | Matt Johnston <matt@ucc.asn.au> |
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date | Sun, 18 Oct 2020 22:17:54 +0800 |
parents | 1ed6f39e8aa4 |
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rev | line source |
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DROPBEAR_ prefix for include guards to avoid collisions
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1 #ifndef DROPBEAR_HAVE_LOGINREC_H_ |
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DROPBEAR_ prefix for include guards to avoid collisions
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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> */ |
865 | 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 |
865 | 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_ */ |