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Comparing rxvt-unicode/src/logging.C (file contents):
Revision 1.26 by ayin, Tue Jan 17 09:31:24 2006 UTC vs.
Revision 1.46 by root, Mon May 5 16:51:52 2008 UTC

1// This file is part of libptytty. Do not make local modifications.
2// http://software.schmorp.de/pkg/libptytty
3
1/*--------------------------------*-C-*---------------------------------* 4/*----------------------------------------------------------------------*
2 * File: logging.C 5 * File: logging.C
3 *----------------------------------------------------------------------* 6 *----------------------------------------------------------------------*
4 * 7 *
5 * All portions of code are copyright by their respective author/s. 8 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 1992 John Bovey <jdb@ukc.ac.uk> 9 * Copyright (c) 1992 John Bovey <jdb@ukc.ac.uk>
… …
12 * Copyright (c) 1997 Raul Garcia Garcia <rgg@tid.es> 15 * Copyright (c) 1997 Raul Garcia Garcia <rgg@tid.es>
13 * Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com> 16 * Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com>
14 * - extensive modifications 17 * - extensive modifications
15 * Copyright (c) 1999 D J Hawkey Jr <hawkeyd@visi.com> 18 * Copyright (c) 1999 D J Hawkey Jr <hawkeyd@visi.com>
16 * - lastlog support 19 * - lastlog support
17 * Copyright (c) 2004 Marc Lehmann <pcg@goof.com> 20 * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com>
21 * Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it>
18 * 22 *
19 * This program is free software; you can redistribute it and/or modify 23 * This program is free software; you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License as published by 24 * it under the terms of the GNU General Public License as published by
21 * the Free Software Foundation; either version 2 of the License, or 25 * the Free Software Foundation; either version 2 of the License, or
22 * (at your option) any later version. 26 * (at your option) any later version.
… …
30 * along with this program; if not, write to the Free Software 34 * along with this program; if not, write to the Free Software
31 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 35 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
32 *----------------------------------------------------------------------*/ 36 *----------------------------------------------------------------------*/
33 37
34#include "../config.h" 38#include "../config.h"
39
35#include "rxvt.h" 40#include "ptytty.h"
36#include "logging.h"
37 41
38#ifdef UTMP_SUPPORT 42#if UTMP_SUPPORT
39 43
40#if HAVE_STRUCT_UTMP 44#include <cstdio>
41static int rxvt_write_bsd_utmp (int utmp_pos, struct utmp *wu);
42static void rxvt_update_wtmp (const char *fname, const struct utmp *putmp);
43#endif
44 45
45static void rxvt_update_lastlog (const char *fname, const char *pty, const char *host); 46#include <sys/types.h>
47#include <sys/stat.h>
48#include <fcntl.h>
49#include <unistd.h>
50#include <time.h>
51#include <errno.h>
46 52
47/* 53/*
48 * BSD style utmp entry 54 * BSD style utmp entry
49 * ut_line, ut_name, ut_host, ut_time 55 * ut_line, ut_name, ut_host, ut_time
50 * SYSV style utmp (and utmpx) entry 56 * SYSV style utmp (and utmpx) entry
51 * ut_user, ut_id, ut_line, ut_pid, ut_type, ut_exit, ut_time 57 * ut_user, ut_id, ut_line, ut_pid, ut_type, ut_exit, ut_time
52 */ 58 */
53 59
54/* ------------------------------------------------------------------------- */ 60/* ------------------------------------------------------------------------- */
61/*
62 * Write a BSD style utmp entry
63 */
64#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
65static int
66write_bsd_utmp (int utmp_pos, struct utmp *wu)
67{
68 int fd;
69
70 if (utmp_pos <= 0 || (fd = open (UTMP_FILE, O_WRONLY)) == -1)
71 return 0;
72
73 if (lseek (fd, (off_t) (utmp_pos * sizeof (struct utmp)), SEEK_SET) != -1)
74 write (fd, wu, sizeof (struct utmp));
75 close (fd);
76 return 1;
77}
78#endif
79
80/* ------------------------------------------------------------------------- */
81/*
82 * Update a BSD style wtmp entry
83 */
84#if defined(WTMP_SUPPORT) && !defined(HAVE_UPDWTMP) && defined(HAVE_STRUCT_UTMP)
85static void
86update_wtmp (const char *fname, const struct utmp *putmp)
87{
88 int fd, gotlock, retry;
89 struct flock lck; /* fcntl locking scheme */
90 struct stat sbuf;
91
92 if ((fd = open (fname, O_WRONLY | O_APPEND, 0)) < 0)
93 return;
94
95 lck.l_whence = SEEK_END; /* start lock at current eof */
96 lck.l_len = 0; /* end at ``largest possible eof'' */
97 lck.l_start = 0;
98 lck.l_type = F_WRLCK; /* we want a write lock */
99
100 /* attempt lock with F_SETLK; F_SETLKW would cause a deadlock! */
101 for (retry = 10, gotlock = 0; retry--;)
102 if (fcntl (fd, F_SETLK, &lck) != -1)
103 {
104 gotlock = 1;
105 break;
106 }
107 else if (errno != EAGAIN && errno != EACCES)
108 break;
109 if (!gotlock)
110 {
111 /* give it up */
112 close (fd);
113 return;
114 }
115 if (fstat (fd, &sbuf) == 0)
116 if (write (fd, putmp, sizeof (struct utmp)) != sizeof (struct utmp))
117 ftruncate (fd, sbuf.st_size); /* remove bad writes */
118
119 lck.l_type = F_UNLCK; /* unlocking the file */
120 fcntl (fd, F_SETLK, &lck);
121 close (fd);
122}
123#endif
124
125/* ------------------------------------------------------------------------- */
126#ifdef LASTLOG_SUPPORT
127static void
128update_lastlog (const char *fname, const char *pty, const char *host)
129{
130# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
131 struct lastlogx llx;
132# endif
133# ifdef HAVE_STRUCT_LASTLOG
134 int fd;
135 struct lastlog ll;
136 char lastlogfile[256];
137 struct passwd *pwent;
138 struct stat st;
139# endif
140
141# if defined(HAVE_STRUCT_LASTLOGX) && defined(HAVE_UPDLASTLOGX)
142 memset (&llx, 0, sizeof (llx));
143 llx.ll_tv.tv_sec = time (NULL);
144 llx.ll_tv.tv_usec = 0;
145 strncpy (llx.ll_line, pty, sizeof (llx.ll_line));
146 strncpy (llx.ll_host, host, sizeof (llx.ll_host));
147 updlastlogx (LASTLOGX_FILE, getuid (), &llx);
148# endif
149
150# ifdef HAVE_STRUCT_LASTLOG
151 pwent = getpwuid (getuid ());
152 if (!pwent)
153 {
154 ptytty_warn ("no entry in password file, not updating lastlog.\n", 0);
155 return;
156 }
157
158 memset (&ll, 0, sizeof (ll));
159 ll.ll_time = time (NULL);
160 strncpy (ll.ll_line, pty, sizeof (ll.ll_line));
161 strncpy (ll.ll_host, host, sizeof (ll.ll_host));
162 if (stat (fname, &st) != 0)
163 return;
164 if (S_ISDIR (st.st_mode))
165 {
166 sprintf (lastlogfile, "%.*s/%.*s",
167 (int)(sizeof (lastlogfile) - sizeof (pwent->pw_name) - 2), fname,
168 (int)sizeof (pwent->pw_name),
169 (!pwent->pw_name || pwent->pw_name[0] == '\0') ? "unknown"
170 : pwent->pw_name);
171 if ((fd = open (lastlogfile, O_WRONLY | O_CREAT, 0644)) >= 0)
172 {
173 write (fd, &ll, sizeof (ll));
174 close (fd);
175 }
176 }
177 else if (S_ISREG (st.st_mode))
178 if ((fd = open (fname, O_RDWR)) != -1)
179 {
180 if (lseek (fd, (off_t) ((long)pwent->pw_uid * sizeof (ll)),
181 SEEK_SET) != -1)
182 write (fd, &ll, sizeof (ll));
183 close (fd);
184 }
185# endif /* HAVE_STRUCT_LASTLOG */
186}
187#endif /* LASTLOG_SUPPORT */
188
189/* ------------------------------------------------------------------------- */
55 190
56/* 191/*
57 * make and write utmp and wtmp entries 192 * make and write utmp and wtmp entries
58 */ 193 */
59void 194void
60rxvt_session::login (const char *pty, int cmd_pid, bool login_shell, const char *hostname) 195ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
61{ 196{
197 const char *pty = name;
198
199 if (!pty || !*pty)
200 return;
201
62 this->cmd_pid = cmd_pid; 202 this->cmd_pid = cmd_pid;
63 this->login_shell = login_shell; 203 this->login_shell = login_shell;
64 204
65#ifdef HAVE_STRUCT_UTMP 205#ifdef HAVE_STRUCT_UTMP
66 struct utmp *ut = &this->ut; 206 struct utmp *ut = &this->ut;
… …
68#ifdef HAVE_STRUCT_UTMPX 208#ifdef HAVE_STRUCT_UTMPX
69 struct utmpx *utx = &this->utx; 209 struct utmpx *utx = &this->utx;
70#endif 210#endif
71 int i; 211 int i;
72 struct passwd *pwent = getpwuid (getuid ()); 212 struct passwd *pwent = getpwuid (getuid ());
213 const char *name = (pwent && pwent->pw_name) ? pwent->pw_name : "?";
73 214
74 if (!strncmp (pty, "/dev/", 5)) 215 if (!strncmp (pty, "/dev/", 5))
75 pty += 5; /* skip /dev/ prefix */ 216 pty += 5; /* skip /dev/ prefix */
76 217
77#if defined(HAVE_UTMP_PID) || defined(HAVE_STRUCT_UTMPX) 218#if defined(HAVE_UTMP_PID) || defined(HAVE_STRUCT_UTMPX)
78 if (!strncmp (pty, "pty", 3) || !strncmp (pty, "tty", 3)) 219 if (!strncmp (pty, "pty", 3) || !strncmp (pty, "tty", 3))
79 strncpy (ut_id, pty + 3, sizeof (ut_id)); 220 strncpy (ut_id, pty + 3, sizeof (ut_id));
80 else if (sscanf (pty, "pts/%d", &i) == 1) 221 else if (sscanf (pty, "pts/%d", &i) == 1)
81 sprintf (ut_id, "vt%02x", (i & 0xff)); /* sysv naming */ 222 sprintf (ut_id, "vt%02x", (i & 0xff)); /* sysv naming */
82 else if (strncmp (pty, "pty", 3) && strncmp (pty, "tty", 3)) 223 else
83 { 224 {
84 rxvt_warn ("can't parse tty name \"%s\", not adding utmp entry.\n", pty); 225 ptytty_warn ("can't parse tty name \"%s\", not adding utmp entry.\n", pty);
85 return; 226 return;
86 } 227 }
87#endif 228#endif
88 229
89#ifdef HAVE_STRUCT_UTMP 230#ifdef HAVE_STRUCT_UTMP
… …
91# ifdef HAVE_UTMP_PID 232# ifdef HAVE_UTMP_PID
92 setutent (); 233 setutent ();
93 strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id)); 234 strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
94 ut->ut_type = DEAD_PROCESS; 235 ut->ut_type = DEAD_PROCESS;
95 getutid (ut); /* position to entry in utmp file */ 236 getutid (ut); /* position to entry in utmp file */
96 strncpy (this->ut_id, ut_id, sizeof (this->ut_id));
97# endif 237# endif
98#endif 238#endif
99 239
100#ifdef HAVE_STRUCT_UTMPX 240#ifdef HAVE_STRUCT_UTMPX
101 memset (utx, 0, sizeof (struct utmpx)); 241 memset (utx, 0, sizeof (struct utmpx));
102 setutxent (); 242 setutxent ();
103 strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id)); 243 strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
104 utx->ut_type = DEAD_PROCESS; 244 utx->ut_type = DEAD_PROCESS;
105 getutxid (utx); /* position to entry in utmp file */ 245 getutxid (utx); /* position to entry in utmp file */
106 strncpy (this->ut_id, ut_id, sizeof (this->ut_id));
107#endif 246#endif
108 247
109#ifdef HAVE_STRUCT_UTMP 248#ifdef HAVE_STRUCT_UTMP
110 strncpy (ut->ut_line, pty, sizeof (ut->ut_line)); 249 strncpy (ut->ut_line, pty, sizeof (ut->ut_line));
250# ifdef HAVE_UTMP_HOST
251 strncpy (ut->ut_host, hostname, sizeof (ut->ut_host));
252# endif
111 ut->ut_time = time (NULL); 253 ut->ut_time = time (NULL);
112# ifdef HAVE_UTMP_PID 254# ifdef HAVE_UTMP_PID
113 strncpy (ut->ut_user, (pwent && pwent->pw_name) ? pwent->pw_name : "?", 255 strncpy (ut->ut_user, name, sizeof (ut->ut_user));
114 sizeof (ut->ut_user));
115 strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id)); 256 strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
116 ut->ut_time = time (NULL);
117 ut->ut_pid = cmd_pid; 257 ut->ut_pid = cmd_pid;
118# ifdef HAVE_UTMP_HOST
119 strncpy (ut->ut_host, hostname, sizeof (ut->ut_host));
120# endif
121 ut->ut_type = USER_PROCESS; 258 ut->ut_type = USER_PROCESS;
122 pututline (ut); 259 pututline (ut);
123 endutent (); /* close the file */ 260 endutent (); /* close the file */
124 utmp_pos = 0; 261 utmp_pos = 0;
125# else 262# else
126 strncpy (ut->ut_name, (pwent && pwent->pw_name) ? pwent->pw_name : "?",
127 sizeof (ut->ut_name));
128# ifdef HAVE_UTMP_HOST
129 strncpy (ut->ut_host, hostname, sizeof (ut->ut_host)); 263 strncpy (ut->ut_name, name, sizeof (ut->ut_name));
130# endif
131# endif 264# endif
132#endif 265#endif
133 266
134#ifdef HAVE_STRUCT_UTMPX 267#ifdef HAVE_STRUCT_UTMPX
135 strncpy (utx->ut_line, pty, sizeof (utx->ut_line)); 268 strncpy (utx->ut_line, pty, sizeof (utx->ut_line));
136 strncpy (utx->ut_user, (pwent && pwent->pw_name) ? pwent->pw_name : "?", 269 strncpy (utx->ut_user, name, sizeof (utx->ut_user));
137 sizeof (utx->ut_user));
138 strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id)); 270 strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
139# if HAVE_UTMPX_SESSION 271# if HAVE_UTMPX_SESSION
140 utx->ut_session = getsid (0); 272 utx->ut_session = getsid (0);
141# endif 273# endif
142 utx->ut_tv.tv_sec = time (NULL); 274 utx->ut_tv.tv_sec = time (NULL);
… …
158 endutxent (); /* close the file */ 290 endutxent (); /* close the file */
159 utmp_pos = 0; 291 utmp_pos = 0;
160#endif 292#endif
161 293
162#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID) 294#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
163
164 { 295 {
165# ifdef HAVE_TTYSLOT 296# if 1
297 int fdstdin = dup (STDIN_FILENO);
298 dup2 (tty, STDIN_FILENO);
299
166 i = ttyslot (); 300 i = ttyslot ();
167 if (rxvt_write_bsd_utmp (i, ut)) 301 if (write_bsd_utmp (i, ut))
168 utmp_pos = i; 302 utmp_pos = i;
169# else
170 FILE *fd0;
171 303
172 if ((fd0 = fopen (TTYTAB_FILENAME, "r")) != NULL) 304 dup2 (fdstdin, STDIN_FILENO);
173 { 305 close (fdstdin);
174 char buf[256], name[256];
175
176 buf[sizeof (buf) - 1] = '\0';
177 for (i = 1; (fgets (buf, sizeof (buf) - 1, fd0) != NULL);)
178 {
179 if (*buf == '#' || sscanf (buf, "%s", name) != 1)
180 continue;
181 if (!strcmp (ut->ut_line, name))
182 {
183 if (!rxvt_write_bsd_utmp (i, ut))
184 i = 0;
185 utmp_pos = i;
186 fclose (fd0);
187 break;
188 }
189 i++;
190 }
191 fclose (fd0);
192 }
193# endif 306# endif
194 } 307 }
195#endif 308#endif
196 309
197#ifdef WTMP_SUPPORT 310#ifdef WTMP_SUPPORT
198# ifdef WTMP_ONLY_ON_LOGIN 311#ifdef LOG_ONLY_ON_LOGIN
199 if (login_shell) 312 if (login_shell)
200# endif 313#endif
201 { 314 {
202# ifdef HAVE_STRUCT_UTMP 315# ifdef HAVE_STRUCT_UTMP
203# ifdef HAVE_UPDWTMP 316# ifdef HAVE_UPDWTMP
204 updwtmp (RXVT_WTMP_FILE, ut); 317 updwtmp (WTMP_FILE, ut);
205# else 318# else
206 rxvt_update_wtmp (RXVT_WTMP_FILE, ut); 319 update_wtmp (WTMP_FILE, ut);
207# endif 320# endif
208# endif 321# endif
209# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX) 322# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
210 updwtmpx (RXVT_WTMPX_FILE, utx); 323 updwtmpx (WTMPX_FILE, utx);
211# endif
212 }
213#endif 324# endif
325 }
326#endif
214#if defined(LASTLOG_SUPPORT) && defined(RXVT_LASTLOG_FILE) 327#if defined(LASTLOG_SUPPORT) && defined(LASTLOG_FILE)
328#ifdef LOG_ONLY_ON_LOGIN
215 if (login_shell) 329 if (login_shell)
330#endif
216 rxvt_update_lastlog (RXVT_LASTLOG_FILE, pty, hostname); 331 update_lastlog (LASTLOG_FILE, pty, hostname);
217#endif 332#endif
218} 333}
219 334
220/* ------------------------------------------------------------------------- */ 335/* ------------------------------------------------------------------------- */
221/* 336/*
222 * remove utmp and wtmp entries 337 * remove utmp and wtmp entries
223 */ 338 */
224void 339void
225rxvt_session::logout () 340ptytty_unix::logout ()
226{ 341{
342 if (!cmd_pid)
343 return;
344
227#ifdef HAVE_STRUCT_UTMP 345#ifdef HAVE_STRUCT_UTMP
228 struct utmp *tmput, *ut = &this->ut; 346 struct utmp *tmput, *ut = &this->ut;
229#endif 347#endif
230#ifdef HAVE_STRUCT_UTMPX 348#ifdef HAVE_STRUCT_UTMPX
231 struct utmpx *tmputx, *utx = &this->utx; 349 struct utmpx *tmputx, *utx = &this->utx;
… …
266 384
267 /* 385 /*
268 * Write ending wtmp entry 386 * Write ending wtmp entry
269 */ 387 */
270#ifdef WTMP_SUPPORT 388#ifdef WTMP_SUPPORT
271# ifdef WTMP_ONLY_ON_LOGIN 389#ifdef LOG_ONLY_ON_LOGIN
272 if (login_shell) 390 if (login_shell)
273# endif 391#endif
274 { 392 {
275# ifdef HAVE_STRUCT_UTMP 393# ifdef HAVE_STRUCT_UTMP
276# ifdef HAVE_UPDWTMP 394# ifdef HAVE_UPDWTMP
277 updwtmp (RXVT_WTMP_FILE, ut); 395 updwtmp (WTMP_FILE, ut);
278# else 396# else
279 rxvt_update_wtmp (RXVT_WTMP_FILE, ut); 397 update_wtmp (WTMP_FILE, ut);
280# endif 398# endif
281# endif 399# endif
282# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX) 400# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
283 updwtmpx (RXVT_WTMPX_FILE, utx); 401 updwtmpx (WTMPX_FILE, utx);
284# endif 402# endif
285 } 403 }
286#endif 404#endif
287 405
288 /* 406 /*
… …
293 if (ut->ut_pid == cmd_pid) 411 if (ut->ut_pid == cmd_pid)
294 pututline (ut); 412 pututline (ut);
295 endutent (); 413 endutent ();
296# else 414# else
297 memset (ut, 0, sizeof (struct utmp)); 415 memset (ut, 0, sizeof (struct utmp));
298 rxvt_write_bsd_utmp (utmp_pos, ut); 416 write_bsd_utmp (utmp_pos, ut);
299# endif 417# endif
300#endif 418#endif
301#ifdef HAVE_STRUCT_UTMPX 419#ifdef HAVE_STRUCT_UTMPX
302 if (utx->ut_pid == cmd_pid) 420 if (utx->ut_pid == cmd_pid)
303 pututxline (utx); 421 pututxline (utx);
304 endutxent (); 422 endutxent ();
305#endif 423#endif
306}
307 424
308/* ------------------------------------------------------------------------- */ 425 cmd_pid = 0;
309/*
310 * Write a BSD style utmp entry
311 */
312#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
313static int
314rxvt_write_bsd_utmp (int utmp_pos, struct utmp *wu)
315{
316 int fd;
317
318 if (utmp_pos <= 0 || (fd = open (RXVT_UTMP_FILE, O_WRONLY)) == -1)
319 return 0;
320
321 if (lseek (fd, (off_t) (utmp_pos * sizeof (struct utmp)), SEEK_SET) != -1)
322 write (fd, wu, sizeof (struct utmp));
323 close (fd);
324 return 1;
325} 426}
326#endif
327 427
328/* ------------------------------------------------------------------------- */ 428#else
329/* 429void
330 * Update a BSD style wtmp entry 430ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
331 */
332#if defined(WTMP_SUPPORT) && !defined(HAVE_UPDWTMP) && defined(HAVE_STRUCT_UTMP)
333static void
334rxvt_update_wtmp (const char *fname, const struct utmp *putmp)
335{ 431{
336 int fd, gotlock, retry;
337 struct flock lck; /* fcntl locking scheme */
338 struct stat sbuf;
339
340 if ((fd = open (fname, O_WRONLY | O_APPEND, 0)) < 0)
341 return;
342
343 lck.l_whence = SEEK_END; /* start lock at current eof */
344 lck.l_len = 0; /* end at ``largest possible eof'' */
345 lck.l_start = 0;
346 lck.l_type = F_WRLCK; /* we want a write lock */
347
348 /* attempt lock with F_SETLK; F_SETLKW would cause a deadlock! */
349 for (retry = 10, gotlock = 0; retry--;)
350 if (fcntl (fd, F_SETLK, &lck) != -1)
351 {
352 gotlock = 1;
353 break;
354 }
355 else if (errno != EAGAIN && errno != EACCES)
356 break;
357 if (!gotlock)
358 { /* give it up */
359 close (fd);
360 return;
361 }
362 if (fstat (fd, &sbuf) == 0)
363 if (write (fd, putmp, sizeof (struct utmp)) != sizeof (struct utmp))
364 ftruncate (fd, sbuf.st_size); /* remove bad writes */
365
366 lck.l_type = F_UNLCK; /* unlocking the file */
367 fcntl (fd, F_SETLK, &lck);
368 close (fd);
369} 432}
370#endif
371
372/* ------------------------------------------------------------------------- */
373#ifdef LASTLOG_SUPPORT
374static void
375rxvt_update_lastlog (const char *fname, const char *pty, const char *host)
376{
377# ifdef HAVE_STRUCT_LASTLOGX
378 struct lastlogx llx;
379# endif 433#endif
380# ifdef HAVE_STRUCT_LASTLOG
381 int fd;
382 struct lastlog ll;
383# ifdef LASTLOG_IS_DIR
384 char lastlogfile[256];
385# endif
386 struct passwd *pwent;
387# endif
388 434
389# ifdef HAVE_STRUCT_LASTLOGX
390 memset (&llx, 0, sizeof (llx));
391 llx.ll_tv.tv_sec = time (NULL);
392 llx.ll_tv.tv_usec = 0;
393 strncpy (llx.ll_line, pty, sizeof (llx.ll_line));
394 strncpy (llx.ll_host, host, sizeof (llx.ll_host));
395 updlastlogx (RXVT_LASTLOGX_FILE, getuid (), &llx);
396# endif
397
398# ifdef HAVE_STRUCT_LASTLOG
399 pwent = getpwuid (getuid ());
400 if (!pwent)
401 {
402 rxvt_warn ("no entry in password file, not updating lastlog.\n");
403 return;
404 }
405
406 memset (&ll, 0, sizeof (ll));
407 ll.ll_time = time (NULL);
408 strncpy (ll.ll_line, pty, sizeof (ll.ll_line));
409 strncpy (ll.ll_host, host, sizeof (ll.ll_host));
410# ifdef LASTLOG_IS_DIR
411 sprintf (lastlogfile, "%.*s/%.*s",
412 sizeof (lastlogfile) - sizeof (pwent->pw_name) - 2, fname,
413 sizeof (pwent->pw_name),
414 (!pwent->pw_name || pwent->pw_name[0] == '\0') ? "unknown"
415 : pwent->pw_name);
416 if ((fd = open (lastlogfile, O_WRONLY | O_CREAT, 0644)) >= 0)
417 {
418 write (fd, &ll, sizeof (ll));
419 close (fd);
420 }
421# else
422 if ((fd = open (fname, O_RDWR)) != -1)
423 {
424 if (lseek (fd, (off_t) ((long)pwent->pw_uid * sizeof (ll)),
425 SEEK_SET) != -1)
426 write (fd, &ll, sizeof (ll));
427 close (fd);
428 }
429# endif /* LASTLOG_IS_DIR */
430# endif /* HAVE_STRUCT_LASTLOG */
431}
432#endif /* LASTLOG_SUPPORT */
433/* ------------------------------------------------------------------------- */
434
435#endif /* UTMP_SUPPORT */

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