• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 #ifndef _HAVE_LOGINREC_H_
2 #define _HAVE_LOGINREC_H_
3 
4 /*
5  * Copyright (c) 2000 Andre Lucas.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 /**
29  ** loginrec.h:  platform-independent login recording and lastlog retrieval
30  **/
31 
32 #include "includes.h"
33 
34 /**
35  ** you should use the login_* calls to work around platform dependencies
36  **/
37 
38 /*
39  * login_netinfo structure
40  */
41 
42 union login_netinfo {
43 	struct sockaddr sa;
44 	struct sockaddr_in sa_in;
45 	struct sockaddr_storage sa_storage;
46 };
47 
48 /*
49  *   * logininfo structure  *
50  */
51 /* types - different to utmp.h 'type' macros */
52 /* (though set to the same value as linux, openbsd and others...) */
53 #define LTYPE_LOGIN    7
54 #define LTYPE_LOGOUT   8
55 
56 /* string lengths - set very long */
57 #define LINFO_PROGSIZE 64
58 #define LINFO_LINESIZE 64
59 #define LINFO_NAMESIZE 512
60 #define LINFO_HOSTSIZE 256
61 
62 struct logininfo {
63 	char       progname[LINFO_PROGSIZE];     /* name of program (for PAM) */
64 	int        progname_null;
65 	short int  type;                         /* type of login (LTYPE_*) */
66 	pid_t      pid;                          /* PID of login process */
67 	uid_t      uid;                          /* UID of this user */
68 	char       line[LINFO_LINESIZE];         /* tty/pty name */
69 	char       username[LINFO_NAMESIZE];     /* login username */
70 	char       hostname[LINFO_HOSTSIZE];     /* remote hostname */
71 	/* 'exit_status' structure components */
72 	int        exit;                        /* process exit status */
73 	int        termination;                 /* process termination status */
74 	/* struct timeval (sys/time.h) isn't always available, if it isn't we'll
75 	 * use time_t's value as tv_sec and set tv_usec to 0
76 	 */
77 	unsigned int tv_sec;
78 	unsigned int tv_usec;
79 	union login_netinfo hostaddr;       /* caller's host address(es) */
80 }; /* struct logininfo */
81 
82 /*
83  * login recording functions
84  */
85 
86 /** 'public' functions */
87 
88 /* construct a new login entry */
89 struct logininfo *login_alloc_entry(pid_t pid, const char *username,
90 				    const char *hostname, const char *line);
91 /* free a structure */
92 void login_free_entry(struct logininfo *li);
93 /* fill out a pre-allocated structure with useful information */
94 int login_init_entry(struct logininfo *li, pid_t pid, const char *username,
95 		     const char *hostname, const char *line);
96 /* place the current time in a logininfo struct */
97 void login_set_current_time(struct logininfo *li);
98 
99 /* record the entry */
100 int login_login (struct logininfo *li);
101 int login_logout(struct logininfo *li);
102 #ifdef LOGIN_NEEDS_UTMPX
103 int login_utmp_only(struct logininfo *li);
104 #endif
105 
106 /** End of public functions */
107 
108 /* record the entry */
109 int login_write (struct logininfo *li);
110 int login_log_entry(struct logininfo *li);
111 
112 /* set the network address based on network address type */
113 void login_set_addr(struct logininfo *li, const struct sockaddr *sa,
114 		    const unsigned int sa_size);
115 
116 /*
117  * lastlog retrieval functions
118  */
119 /* lastlog *entry* functions fill out a logininfo */
120 struct logininfo *login_get_lastlog(struct logininfo *li, const uid_t uid);
121 /* lastlog *time* functions return time_t equivalent (uint) */
122 unsigned int login_get_lastlog_time(const uid_t uid);
123 
124 /* produce various forms of the line filename */
125 char *line_fullname(char *dst, const char *src, u_int dstsize);
126 char *line_stripname(char *dst, const char *src, int dstsize);
127 char *line_abbrevname(char *dst, const char *src, int dstsize);
128 
129 void record_failed_login(const char *, const char *, const char *);
130 
131 #endif /* _HAVE_LOGINREC_H_ */
132