login.c revision 29964 
1/* login.c: The opielogin() library function.
2
3%%% copyright-cmetz-96
4This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
5The Inner Net License Version 2 applies to this software.
6You should have received a copy of the license with this software. If
7you didn't get a copy, you may request one from <license@inner.net>.
8
9        History:
10
11	Modified by cmetz for OPIE 2.31. If the OS won't tell us where
12		_PATH_WTMP[X] is, try playing the SVID game, then use
13		Autoconf-discovered values. Fixed gettimeofday() call
14		and updwtmpx() call. Call endutxent for utmpx. Added
15		DISABLE_UTMP.
16        Created by cmetz for OPIE 2.3.
17*/
18
19#include "opie_cfg.h"
20#include <stdio.h>
21#include <sys/types.h>
22#include <utmp.h>
23
24#if DOUTMPX
25#include <utmpx.h>
26#define pututline(x) pututxline(x)
27#define endutent endutxent
28#define utmp utmpx
29#endif /* DOUTMPX */
30
31#if HAVE_STRING_H
32#include <string.h>
33#endif /* HAVE_STRING_H */
34#include <sys/stat.h>
35#if DEBUG
36#include <syslog.h>
37#include <errno.h>
38#endif /* DEBUG */
39#include "opie.h"
40
41int opielogin FUNCTION((line, name, host), char *line AND char *name AND char *host)
42{
43  struct utmp u;
44  int rval = 0;
45
46#if !DISABLE_UTMP
47  if (__opiegetutmpentry(line, &u)) {
48#if DEBUG
49    syslog(LOG_DEBUG, "opielogin: __opiegetutmpentry(line=%s, &u) failed", line);
50#endif /* DEBUG */
51    memset(&u, 0, sizeof(struct utmp));
52    if (!strncmp(line, "/dev/", 5))
53      strncpy(u.ut_line, line + 5, sizeof(u.ut_line));
54    else
55      strncpy(u.ut_line, line, sizeof(u.ut_line));
56#if DEBUG
57    syslog(LOG_DEBUG, "opielogin: continuing with ut_line=%s", u.ut_line);
58#endif /* DEBUG */
59  }
60
61#if HAVE_UT_TYPE && defined(USER_PROCESS)
62  u.ut_type = USER_PROCESS;
63#endif /* HAVE_UT_TYPE && defined(USER_PROCESS) */
64#if HAVE_UT_PID
65  u.ut_pid = getpid();
66#endif /* HAVE_UT_PID */
67
68#if HAVE_UT_NAME
69  strncpy(u.ut_name, name, sizeof(u.ut_name));
70  u.ut_name[sizeof(u.ut_name)-1] = 0;
71#else /* HAVE_UT_NAME */
72#error No ut_name field in struct utmp? (Please send in a bug report)
73#endif /* HAVE_UT_NAME */
74
75#if HAVE_UT_HOST
76  strncpy(u.ut_host, host, sizeof(u.ut_host));
77  u.ut_host[sizeof(u.ut_host)-1] = 0;
78#endif /* HAVE_UT_HOST */
79
80#if DOUTMPX
81#ifdef HAVE_ONE_ARG_GETTIMEOFDAY
82  gettimeofday(&u.ut_tv);
83#else /* HAVE_ONE_ARG_GETTIMEOFDAY */
84  gettimeofday(&u.ut_tv, NULL);
85#endif /* HAVE_ONE_ARG_GETTIMEOFDAY */
86#else /* DOUTMPX */
87  time(&u.ut_time);
88#endif /* DOUTMPX */
89
90  pututline(&u);
91  endutent();
92
93#if DEBUG
94  syslog(LOG_DEBUG, "opielogin: utmp suceeded");
95#endif /* DEBUG */
96#endif /* !DISABLE_UTMP */
97
98dowtmp:
99  opielogwtmp(line, name, host);
100  opielogwtmp(NULL, NULL, NULL);
101
102dosetlogin:
103#if HAVE_SETLOGIN
104  setlogin(name);
105#endif /* HAVE_SETLOGIN */
106
107#if DEBUG
108  syslog(LOG_DEBUG, "opielogin: rval=%d", rval);
109#endif /* DEBUG */
110
111  return rval;
112}
113