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Comparing rxvt-unicode/src/logging.C (file contents):
Revision 1.5 by pcg, Sat Jan 31 03:27:45 2004 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>
7 * - original version 10 * - original version
… …
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
20 * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com>
21 * Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it>
17 * 22 *
18 * 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
19 * 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
20 * the Free Software Foundation; either version 2 of the License, or 25 * the Free Software Foundation; either version 2 of the License, or
21 * (at your option) any later version. 26 * (at your option) any later version.
… …
27 * 32 *
28 * You should have received a copy of the GNU General Public License 33 * You should have received a copy of the GNU General Public License
29 * along with this program; if not, write to the Free Software 34 * along with this program; if not, write to the Free Software
30 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 35 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 *----------------------------------------------------------------------*/ 36 *----------------------------------------------------------------------*/
32/*----------------------------------------------------------------------*
33 * Public:
34 * extern void cleanutent (void);
35 * extern void makeutent (const char * pty, const char * hostname);
36 *
37 * Private:
38 * rxvt_update_wtmp ();
39 *----------------------------------------------------------------------*/
40 37
41#include "../config.h" /* NECESSARY */
42#include "rxvt.h" /* NECESSARY */
43#include "logging.h" 38#include "../config.h"
39
40#include "ptytty.h"
41
44#ifdef UTMP_SUPPORT 42#if UTMP_SUPPORT
43
44#include <cstdio>
45
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>
45 52
46/* 53/*
47 * BSD style utmp entry 54 * BSD style utmp entry
48 * ut_line, ut_name, ut_host, ut_time 55 * ut_line, ut_name, ut_host, ut_time
49 * SYSV style utmp (and utmpx) entry 56 * SYSV style utmp (and utmpx) entry
50 * 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
51 */ 58 */
52 59
53/* ------------------------------------------------------------------------- */ 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/* ------------------------------------------------------------------------- */
54 190
55/* 191/*
56 * make and write utmp and wtmp entries 192 * make and write utmp and wtmp entries
57 */ 193 */
58void 194void
59rxvt_term::makeutent (const char *pty, const char *hostname) 195ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
60{ 196{
61#ifdef HAVE_STRUCT_UTMP 197 const char *pty = name;
62 struct utmp *ut = &(this->ut); 198
63#endif 199 if (!pty || !*pty)
200 return;
201
202 this->cmd_pid = cmd_pid;
203 this->login_shell = login_shell;
204
64#ifdef HAVE_STRUCT_UTMPX 205#ifdef HAVE_STRUCT_UTMP
65 struct utmpx *utx = &(this->utx); 206 struct utmp *ut = &this->ut;
66#endif 207#endif
67#ifdef HAVE_UTMP_PID
68 int i;
69#endif
70 char ut_id[5];
71 struct passwd *pwent = getpwuid(getuid());
72
73 if (!STRNCMP(pty, "/dev/", 5))
74 pty += 5; /* skip /dev/ prefix */
75
76 if (!STRNCMP(pty, "pty", 3) || !STRNCMP(pty, "tty", 3)) {
77 STRNCPY(ut_id, (pty + 3), sizeof(ut_id));
78 }
79#ifdef HAVE_UTMP_PID
80 else if (sscanf(pty, "pts/%d", &i) == 1)
81 sprintf(ut_id, "vt%02x", (i & 0xff)); /* sysv naming */
82#endif
83 else if (STRNCMP(pty, "pty", 3) && STRNCMP(pty, "tty", 3)) {
84 rxvt_print_error("can't parse tty name \"%s\"", pty);
85 return;
86 }
87
88#ifdef HAVE_STRUCT_UTMP 208#ifdef HAVE_STRUCT_UTMPX
209 struct utmpx *utx = &this->utx;
210#endif
211 int i;
212 struct passwd *pwent = getpwuid (getuid ());
213 const char *name = (pwent && pwent->pw_name) ? pwent->pw_name : "?";
214
215 if (!strncmp (pty, "/dev/", 5))
216 pty += 5; /* skip /dev/ prefix */
217
218#if defined(HAVE_UTMP_PID) || defined(HAVE_STRUCT_UTMPX)
219 if (!strncmp (pty, "pty", 3) || !strncmp (pty, "tty", 3))
220 strncpy (ut_id, pty + 3, sizeof (ut_id));
221 else if (sscanf (pty, "pts/%d", &i) == 1)
222 sprintf (ut_id, "vt%02x", (i & 0xff)); /* sysv naming */
223 else
224 {
225 ptytty_warn ("can't parse tty name \"%s\", not adding utmp entry.\n", pty);
226 return;
227 }
228#endif
229
230#ifdef HAVE_STRUCT_UTMP
89 MEMSET(ut, 0, sizeof(struct utmp)); 231 memset (ut, 0, sizeof (struct utmp));
90# ifdef HAVE_UTMP_PID 232# ifdef HAVE_UTMP_PID
91 setutent(); 233 setutent ();
92 STRNCPY(ut->ut_id, ut_id, sizeof(ut->ut_id)); 234 strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
93 ut->ut_type = DEAD_PROCESS; 235 ut->ut_type = DEAD_PROCESS;
94 getutid(ut); /* position to entry in utmp file */ 236 getutid (ut); /* position to entry in utmp file */
95 STRNCPY(ut_id, ut_id, sizeof(ut_id));
96# endif
97#endif 237# endif
98
99#ifdef HAVE_STRUCT_UTMPX
100 MEMSET(utx, 0, sizeof(struct utmpx));
101 setutxent();
102 STRNCPY(utx->ut_id, ut_id, sizeof(utx->ut_id));
103 utx->ut_type = DEAD_PROCESS;
104 getutxid(utx); /* position to entry in utmp file */
105 STRNCPY(ut_id, ut_id, sizeof(ut_id));
106#endif 238#endif
107 239
108#ifdef HAVE_STRUCT_UTMP 240#ifdef HAVE_STRUCT_UTMPX
241 memset (utx, 0, sizeof (struct utmpx));
242 setutxent ();
243 strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
244 utx->ut_type = DEAD_PROCESS;
245 getutxid (utx); /* position to entry in utmp file */
246#endif
247
248#ifdef HAVE_STRUCT_UTMP
109 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
110 ut->ut_time = time(NULL); 253 ut->ut_time = time (NULL);
111# ifdef HAVE_UTMP_PID 254# ifdef HAVE_UTMP_PID
112 STRNCPY(ut->ut_user, (pwent && pwent->pw_name) ? pwent->pw_name : "?", 255 strncpy (ut->ut_user, name, sizeof (ut->ut_user));
113 sizeof(ut->ut_user));
114 STRNCPY(ut->ut_id, ut_id, sizeof(ut->ut_id)); 256 strncpy (ut->ut_id, ut_id, sizeof (ut->ut_id));
115 ut->ut_time = time(NULL);
116 ut->ut_pid = cmd_pid; 257 ut->ut_pid = cmd_pid;
258 ut->ut_type = USER_PROCESS;
259 pututline (ut);
260 endutent (); /* close the file */
261 utmp_pos = 0;
262# else
263 strncpy (ut->ut_name, name, sizeof (ut->ut_name));
264# endif
265#endif
266
267#ifdef HAVE_STRUCT_UTMPX
268 strncpy (utx->ut_line, pty, sizeof (utx->ut_line));
269 strncpy (utx->ut_user, name, sizeof (utx->ut_user));
270 strncpy (utx->ut_id, ut_id, sizeof (utx->ut_id));
271# if HAVE_UTMPX_SESSION
272 utx->ut_session = getsid (0);
273# endif
274 utx->ut_tv.tv_sec = time (NULL);
275 utx->ut_tv.tv_usec = 0;
276 utx->ut_pid = cmd_pid;
117# ifdef HAVE_UTMP_HOST 277# ifdef HAVE_UTMPX_HOST
118 STRNCPY(ut->ut_host, hostname, sizeof(ut->ut_host)); 278 strncpy (utx->ut_host, hostname, sizeof (utx->ut_host));
279# if 0
280 {
281 char *colon;
282
283 if ((colon = strrchr (ut->ut_host, ':')) != NULL)
284 *colon = '\0';
285 }
119# endif 286# endif
120 ut->ut_type = USER_PROCESS;
121 pututline(ut);
122 endutent(); /* close the file */
123 utmp_pos = 0;
124# else
125 STRNCPY(ut->ut_name, (pwent && pwent->pw_name) ? pwent->pw_name : "?",
126 sizeof(ut->ut_name));
127# ifdef HAVE_UTMP_HOST
128 STRNCPY(ut->ut_host, hostname, sizeof(ut->ut_host));
129# endif 287# endif
130# endif
131#endif
132
133#ifdef HAVE_STRUCT_UTMPX
134 STRNCPY(utx->ut_line, pty, sizeof(utx->ut_line));
135 STRNCPY(utx->ut_user, (pwent && pwent->pw_name) ? pwent->pw_name : "?",
136 sizeof(utx->ut_user));
137 STRNCPY(utx->ut_id, ut_id, sizeof(utx->ut_id));
138 utx->ut_session = getsid(0);
139 utx->ut_tv.tv_sec = time(NULL);
140 utx->ut_tv.tv_usec = 0;
141 utx->ut_pid = cmd_pid;
142# ifdef HAVE_UTMPX_HOST
143 STRNCPY(utx->ut_host, hostname, sizeof(utx->ut_host));
144# if 0
145 {
146 char *colon;
147
148 if ((colon = STRRCHR(ut->ut_host, ':')) != NULL)
149 *colon = '\0';
150 }
151# endif
152# endif
153 utx->ut_type = USER_PROCESS; 288 utx->ut_type = USER_PROCESS;
154 pututxline(utx); 289 pututxline (utx);
155 endutxent(); /* close the file */ 290 endutxent (); /* close the file */
156 utmp_pos = 0; 291 utmp_pos = 0;
157#endif 292#endif
158 293
159#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID) 294#if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
160 { 295 {
161 int i; 296# if 1
162# ifdef HAVE_TTYSLOT 297 int fdstdin = dup (STDIN_FILENO);
298 dup2 (tty, STDIN_FILENO);
299
163 i = ttyslot(); 300 i = ttyslot ();
164 if (rxvt_write_bsd_utmp(i, ut)) 301 if (write_bsd_utmp (i, ut))
165 utmp_pos = i; 302 utmp_pos = i;
166# else
167 FILE *fd0;
168 303
169 if ((fd0 = fopen(TTYTAB_FILENAME, "r")) != NULL) { 304 dup2 (fdstdin, STDIN_FILENO);
170 char buf[256], name[256]; 305 close (fdstdin);
171
172 buf[sizeof(buf) - 1] = '\0';
173 for (i = 1; (fgets(buf, sizeof(buf) - 1, fd0) != NULL);) {
174 if (*buf == '#' || sscanf(buf, "%s", name) != 1)
175 continue;
176 if (!STRCMP(ut->ut_line, name)) {
177 if (!rxvt_write_bsd_utmp(i, ut))
178 i = 0;
179 utmp_pos = i;
180 fclose(fd0);
181 break;
182 }
183 i++;
184 }
185 fclose(fd0);
186 }
187# endif 306# endif
188 } 307 }
189#endif 308#endif
190 309
191#ifdef WTMP_SUPPORT 310#ifdef WTMP_SUPPORT
192# ifdef WTMP_ONLY_ON_LOGIN 311#ifdef LOG_ONLY_ON_LOGIN
193 if (Options & Opt_loginShell) 312 if (login_shell)
194# endif 313#endif
195 { 314 {
196# ifdef HAVE_STRUCT_UTMP 315# ifdef HAVE_STRUCT_UTMP
197# ifdef HAVE_UPDWTMP 316# ifdef HAVE_UPDWTMP
198 updwtmp(RXVT_WTMP_FILE, ut); 317 updwtmp (WTMP_FILE, ut);
199# else 318# else
200 rxvt_update_wtmp(RXVT_WTMP_FILE, ut); 319 update_wtmp (WTMP_FILE, ut);
201# endif 320# endif
202# endif 321# endif
203# ifdef HAVE_STRUCT_UTMPX 322# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
204 updwtmpx(RXVT_WTMPX_FILE, utx); 323 updwtmpx (WTMPX_FILE, utx);
205# endif
206 }
207#endif 324# endif
325 }
326#endif
208#if defined(LASTLOG_SUPPORT) && defined(RXVT_LASTLOG_FILE) 327#if defined(LASTLOG_SUPPORT) && defined(LASTLOG_FILE)
209 if (Options & Opt_loginShell) 328#ifdef LOG_ONLY_ON_LOGIN
329 if (login_shell)
330#endif
210 rxvt_update_lastlog(RXVT_LASTLOG_FILE, pty, hostname); 331 update_lastlog (LASTLOG_FILE, pty, hostname);
211#endif 332#endif
212} 333}
213 334
214/* ------------------------------------------------------------------------- */ 335/* ------------------------------------------------------------------------- */
215/* 336/*
216 * remove utmp and wtmp entries 337 * remove utmp and wtmp entries
217 */ 338 */
218void 339void
219rxvt_term::cleanutent () 340ptytty_unix::logout ()
220{ 341{
221#ifdef HAVE_STRUCT_UTMP 342 if (!cmd_pid)
222 struct utmp *ut = &(this->ut); 343 return;
223#endif 344
224#ifdef HAVE_STRUCT_UTMPX 345#ifdef HAVE_STRUCT_UTMP
346 struct utmp *tmput, *ut = &this->ut;
347#endif
348#ifdef HAVE_STRUCT_UTMPX
225 struct utmpx *tmputx, *utx = &(this->utx); 349 struct utmpx *tmputx, *utx = &this->utx;
226#endif 350#endif
227 351
228#ifdef HAVE_STRUCT_UTMP 352#ifdef HAVE_STRUCT_UTMP
229# ifdef HAVE_UTMP_PID 353# ifdef HAVE_UTMP_PID
230 MEMSET(ut, 0, sizeof(struct utmp)); 354 memset (ut, 0, sizeof (struct utmp));
231 setutent(); 355 setutent ();
232 STRNCPY(ut->ut_id, ut_id, sizeof(ut->ut_id)); 356 strncpy (ut->ut_id, this->ut_id, sizeof (ut->ut_id));
233 ut->ut_type = USER_PROCESS; 357 ut->ut_type = USER_PROCESS;
234 {
235 struct utmp *tmput = getutid(ut);
236
237 if (tmput) /* position to entry in utmp file */ 358 if ((tmput = getutid (ut))) /* position to entry in utmp file */
238 ut = tmput; 359 ut = tmput;
239 }
240 ut->ut_type = DEAD_PROCESS; 360 ut->ut_type = DEAD_PROCESS;
241# else 361# else
242 MEMSET(ut->ut_name, 0, sizeof(ut->ut_name)); 362 memset (ut->ut_name, 0, sizeof (ut->ut_name));
243# ifdef HAVE_UTMP_HOST 363# ifdef HAVE_UTMP_HOST
244 MEMSET(ut->ut_host, 0, sizeof(ut->ut_host)); 364 memset (ut->ut_host, 0, sizeof (ut->ut_host));
245# endif 365# endif
246# endif 366# endif
247 ut->ut_time = time(NULL); 367 ut->ut_time = time (NULL);
248#endif 368#endif
249 369
250#ifdef HAVE_STRUCT_UTMPX 370#ifdef HAVE_STRUCT_UTMPX
251 MEMSET(utx, 0, sizeof(struct utmpx)); 371 memset (utx, 0, sizeof (struct utmpx));
252 setutxent(); 372 setutxent ();
253 STRNCPY(utx->ut_id, ut_id, sizeof(utx->ut_id)); 373 strncpy (utx->ut_id, this->ut_id, sizeof (utx->ut_id));
254 utx->ut_type = USER_PROCESS; 374 utx->ut_type = USER_PROCESS;
255 if ((tmputx = getutxid(utx))) /* position to entry in utmp file */ 375 if ((tmputx = getutxid (utx))) /* position to entry in utmp file */
256 utx = tmputx; 376 utx = tmputx;
257 utx->ut_type = DEAD_PROCESS; 377 utx->ut_type = DEAD_PROCESS;
378# if HAVE_UTMPX_SESSION
258 utx->ut_session = getsid(0); 379 utx->ut_session = getsid (0);
380# endif
259 utx->ut_tv.tv_sec = time(NULL); 381 utx->ut_tv.tv_sec = time (NULL);
260 utx->ut_tv.tv_usec = 0; 382 utx->ut_tv.tv_usec = 0;
261#endif 383#endif
262 384
263 /* 385 /*
264 * Write ending wtmp entry 386 * Write ending wtmp entry
265 */ 387 */
266#ifdef WTMP_SUPPORT 388#ifdef WTMP_SUPPORT
267# ifdef WTMP_ONLY_ON_LOGIN 389#ifdef LOG_ONLY_ON_LOGIN
268 if (Options & Opt_loginShell) 390 if (login_shell)
269# endif 391#endif
270 { 392 {
271# ifdef HAVE_STRUCT_UTMP 393# ifdef HAVE_STRUCT_UTMP
272# ifdef HAVE_UPDWTMP 394# ifdef HAVE_UPDWTMP
273 updwtmp(RXVT_WTMP_FILE, ut); 395 updwtmp (WTMP_FILE, ut);
274# else 396# else
275 rxvt_update_wtmp(RXVT_WTMP_FILE, ut); 397 update_wtmp (WTMP_FILE, ut);
276# endif 398# endif
277# endif 399# endif
278# ifdef HAVE_STRUCT_UTMPX 400# if defined(HAVE_STRUCT_UTMPX) && defined(HAVE_UPDWTMPX)
279 updwtmpx(RXVT_WTMPX_FILE, utx); 401 updwtmpx (WTMPX_FILE, utx);
280# endif
281 }
282#endif 402# endif
403 }
404#endif
283 405
284 /* 406 /*
285 * Write utmp entry 407 * Write utmp entry
286 */ 408 */
287#ifdef HAVE_STRUCT_UTMP 409#ifdef HAVE_STRUCT_UTMP
288# ifdef HAVE_UTMP_PID 410# ifdef HAVE_UTMP_PID
289 if (ut->ut_pid == cmd_pid) 411 if (ut->ut_pid == cmd_pid)
290 pututline(ut); 412 pututline (ut);
291 endutent(); 413 endutent ();
292# else 414# else
293 MEMSET(ut, 0, sizeof(struct utmp)); 415 memset (ut, 0, sizeof (struct utmp));
294 rxvt_write_bsd_utmp(utmp_pos, ut); 416 write_bsd_utmp (utmp_pos, ut);
295# endif
296#endif 417# endif
418#endif
297#ifdef HAVE_STRUCT_UTMPX 419#ifdef HAVE_STRUCT_UTMPX
298 if (utx->ut_pid == cmd_pid) 420 if (utx->ut_pid == cmd_pid)
299 pututxline(utx); 421 pututxline (utx);
300 endutxent(); 422 endutxent ();
301#endif 423#endif
302}
303 424
304/* ------------------------------------------------------------------------- */ 425 cmd_pid = 0;
305/*
306 * Write a BSD style utmp entry
307 */
308#ifdef HAVE_UTMP_H
309/* INTPROTO */
310int
311rxvt_write_bsd_utmp(int utmp_pos, struct utmp *wu)
312{
313 int fd;
314
315 if (utmp_pos <= 0 || (fd = open(RXVT_UTMP_FILE, O_WRONLY)) == -1)
316 return 0;
317
318 if (lseek(fd, (off_t) (utmp_pos * sizeof(struct utmp)), SEEK_SET) != -1)
319 write(fd, wu, sizeof(struct utmp));
320 close(fd);
321 return 1;
322} 426}
323#endif
324 427
325/* ------------------------------------------------------------------------- */ 428#else
326/*
327 * Update a BSD style wtmp entry
328 */
329#if defined(WTMP_SUPPORT) && !defined(HAVE_UPDWTMP)
330/* INTPROTO */
331void 429void
332rxvt_update_wtmp(const char *fname, const struct utmp *putmp) 430ptytty_unix::login (int cmd_pid, bool login_shell, const char *hostname)
333{ 431{
334 int fd, gotlock, retry;
335 struct flock lck; /* fcntl locking scheme */
336 struct stat sbuf;
337
338 if ((fd = open(fname, O_WRONLY | O_APPEND, 0)) < 0)
339 return;
340
341 lck.l_whence = SEEK_END; /* start lock at current eof */
342 lck.l_len = 0; /* end at ``largest possible eof'' */
343 lck.l_start = 0;
344 lck.l_type = F_WRLCK; /* we want a write lock */
345
346 /* attempt lock with F_SETLK; F_SETLKW would cause a deadlock! */
347 for (retry = 10, gotlock = 0; retry--;)
348 if (fcntl(fd, F_SETLK, &lck) != -1) {
349 gotlock = 1;
350 break;
351 } else if (errno != EAGAIN && errno != EACCES)
352 break;
353 if (!gotlock) { /* give it up */
354 close(fd);
355 return;
356 }
357 if (fstat(fd, &sbuf) == 0)
358 if (write(fd, putmp, sizeof(struct utmp)) != sizeof(struct utmp))
359 ftruncate(fd, sbuf.st_size); /* remove bad writes */
360
361 lck.l_type = F_UNLCK; /* unlocking the file */
362 fcntl(fd, F_SETLK, &lck);
363 close(fd);
364} 432}
365#endif
366
367/* ------------------------------------------------------------------------- */
368#ifdef LASTLOG_SUPPORT
369/* INTPROTO */
370void
371rxvt_update_lastlog(const char *fname, const char *pty, const char *host)
372{
373# ifdef HAVE_STRUCT_LASTLOGX
374 struct lastlogx llx;
375# endif 433#endif
376# ifdef HAVE_STRUCT_LASTLOG
377 int fd;
378 struct lastlog ll;
379# ifdef LASTLOG_IS_DIR
380 char lastlogfile[256];
381# endif
382 struct passwd *pwent;
383# endif
384 434
385# ifdef HAVE_STRUCT_LASTLOGX
386 MEMSET(&llx, 0, sizeof(llx));
387 llx.ll_tv.tv_sec = time(NULL);
388 llx.ll_tv.tv_usec = 0;
389 STRNCPY(llx.ll_line, pty, sizeof(llx.ll_line));
390 STRNCPY(llx.ll_host, host, sizeof(llx.ll_host));
391 updlastlogx(RXVT_LASTLOGX_FILE, getuid(), &llx);
392# endif
393
394# ifdef HAVE_STRUCT_LASTLOG
395 pwent = getpwuid(getuid());
396 if (!pwent) {
397 rxvt_print_error("no entry in password file");
398 return;
399 }
400 MEMSET(&ll, 0, sizeof(ll));
401 ll.ll_time = time(NULL);
402 STRNCPY(ll.ll_line, pty, sizeof(ll.ll_line));
403 STRNCPY(ll.ll_host, host, sizeof(ll.ll_host));
404# ifdef LASTLOG_IS_DIR
405 sprintf(lastlogfile, "%.*s/%.*s",
406 sizeof(lastlogfile) - sizeof(pwent->pw_name) - 2, fname,
407 sizeof(pwent->pw_name),
408 (!pwent->pw_name || pwent->pw_name[0] == '\0') ? "unknown"
409 : pwent->pw_name);
410 if ((fd = open(lastlogfile, O_WRONLY | O_CREAT, 0644)) >= 0) {
411 write(fd, &ll, sizeof(ll));
412 close(fd);
413 }
414# else
415 if ((fd = open(fname, O_RDWR)) != -1) {
416 if (lseek(fd, (off_t) ((long)pwent->pw_uid * sizeof(ll)),
417 SEEK_SET) != -1)
418 write(fd, &ll, sizeof(ll));
419 close(fd);
420 }
421# endif /* LASTLOG_IS_DIR */
422# endif /* HAVE_STRUCT_LASTLOG */
423}
424#endif /* LASTLOG_SUPPORT */
425/* ------------------------------------------------------------------------- */
426
427#endif /* UTMP_SUPPORT */

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