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/cvs/libptytty/ptytty.m4
Revision: 1.12
Committed: Sun Nov 4 09:08:42 2007 UTC (16 years, 6 months ago) by ayin
Branch: MAIN
Changes since 1.11: +1 -0 lines
Log Message:
Add check for updlastlogx and make lastlogx support conditional on its
availability.

File Contents

# Content
1 dnl this file is part of libptytty, do not make local modifications
2 dnl http://software.schmorp.de/pkg/libptytty
3
4 AC_DEFUN([PTY_CHECK],
5 [
6 AC_CHECK_HEADERS( \
7 pty.h \
8 util.h \
9 libutil.h \
10 sys/ioctl.h \
11 sys/stropts.h \
12 )
13
14 AC_CHECK_FUNCS( \
15 revoke \
16 _getpty \
17 getpt \
18 posix_openpt \
19 isastream \
20 setuid \
21 seteuid \
22 setreuid \
23 setresuid \
24 )
25
26 have_clone=no
27
28 AC_MSG_CHECKING(for /dev/ptym/clone)
29 if test -e /dev/ptym/clone; then
30 AC_MSG_RESULT(yes)
31 AC_DEFINE(HAVE_DEV_CLONE, 1, [Define to 1 if you have /dev/ptym/clone])
32 AC_DEFINE(CLONE_DEVICE, "/dev/ptym/clone", [clone device filename])
33 have_clone=yes
34 else
35 AC_MSG_RESULT(no)
36 fi
37
38 AC_MSG_CHECKING(for /dev/ptc)
39 if test -e /dev/ptc; then
40 AC_MSG_RESULT(yes)
41 AC_DEFINE(HAVE_DEV_PTC, 1, [Define to 1 if you have /dev/ptc])
42 AC_DEFINE(CLONE_DEVICE, "/dev/ptc", [clone device filename])
43 have_clone=yes
44 else
45 AC_MSG_RESULT(no)
46 fi
47
48 case $host in
49 *-*-cygwin*)
50 have_clone=yes
51 AC_DEFINE(CLONE_DEVICE, "/dev/ptmx", [clone device filename])
52 ;;
53 *)
54 AC_MSG_CHECKING(for /dev/ptmx)
55 if test -e /dev/ptmx; then
56 AC_MSG_RESULT(yes)
57 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if you have /dev/ptmx])
58 AC_DEFINE(CLONE_DEVICE, "/dev/ptmx", [clone device filename])
59 have_clone=yes
60 else
61 AC_MSG_RESULT(no)
62 fi
63 ;;
64 esac
65
66 if test x$ac_cv_func_getpt = xyes -o x$ac_cv_func_posix_openpt = xyes -o x$have_clone = xyes; then
67 AC_MSG_CHECKING(for UNIX98 ptys)
68 AC_TRY_LINK([#include <stdlib.h>],
69 [grantpt(0);unlockpt(0);ptsname(0);],
70 [unix98_pty=yes
71 AC_DEFINE(UNIX98_PTY, 1, "")
72 AC_MSG_RESULT(yes)],
73 [AC_MSG_RESULT(no)])
74 fi
75
76 if test -z "$unix98_pty"; then
77 AC_CHECK_FUNCS(openpty, [], [AC_CHECK_LIB(util, openpty, [AC_DEFINE(HAVE_OPENPTY) LIBS="$LIBS -lutil"])])
78 fi
79 ])
80
81 AC_DEFUN([UTMP_CHECK],
82 [
83 support_utmp=yes
84 support_wtmp=yes
85 support_lastlog=yes
86
87 AC_ARG_ENABLE(utmp,
88 [AS_HELP_STRING([--enable-utmp],[enable utmp (utmpx) support])],
89 [if test x$enableval = xyes -o x$enableval = xno; then
90 support_utmp=$enableval
91 fi])
92
93 AC_ARG_ENABLE(wtmp,
94 [AS_HELP_STRING([--enable-wtmp],[enable wtmp (wtmpx) support (requires --enable-utmp)])],
95 [if test x$enableval = xyes -o x$enableval = xno; then
96 support_wtmp=$enableval
97 fi])
98
99 AC_ARG_ENABLE(lastlog,
100 [AS_HELP_STRING([--enable-lastlog],[enable lastlog support (requires --enable-utmp)])],
101 [if test x$enableval = xyes -o x$enableval = xno; then
102 support_lastlog=$enableval
103 fi])
104
105 if test x$support_utmp = xyes; then
106 AC_DEFINE(UTMP_SUPPORT, 1, Define if you want to have utmp/utmpx support)
107 fi
108 if test x$support_wtmp = xyes; then
109 AC_DEFINE(WTMP_SUPPORT, 1, Define if you want to have wtmp support when utmp/utmpx is enabled)
110 fi
111 if test x$support_lastlog = xyes; then
112 AC_DEFINE(LASTLOG_SUPPORT, 1, Define if you want to have lastlog support when utmp/utmpx is enabled)
113 fi
114
115 AC_CHECK_FUNCS( \
116 ttyslot \
117 updwtmp \
118 updwtmpx \
119 updlastlogx \
120 )
121
122 AC_CHECK_HEADERS( \
123 utmp.h \
124 utmpx.h \
125 lastlog.h \
126 )
127
128 dnl# --------------------------------------------------------------------------
129 dnl# DO ALL UTMP AND WTMP CHECKING
130 dnl# --------------------------------------------------------------------------
131 dnl# check for host field in utmp structure
132
133 dnl# --------------------------------------------
134 AC_CHECK_HEADER(utmp.h,
135 [AC_CACHE_CHECK([for struct utmp], struct_utmp,
136 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
137 #include <utmp.h>]], [[struct utmp ut;]])],[struct_utmp=yes],[struct_utmp=no])])
138 if test x$struct_utmp = xyes; then
139 AC_DEFINE(HAVE_STRUCT_UTMP, 1, Define if utmp.h has struct utmp)
140 fi
141 ]
142
143 AC_CACHE_CHECK(for ut_host in utmp struct, struct_utmp_host,
144 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
145 #include <utmp.h>]], [[struct utmp ut; ut.ut_host;]])],[struct_utmp_host=yes],[struct_utmp_host=no])])
146 if test x$struct_utmp_host = xyes; then
147 AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host)
148 fi
149
150 AC_CACHE_CHECK(for ut_pid in utmp struct, struct_utmp_pid,
151 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
152 #include <utmp.h>]], [[struct utmp ut; ut.ut_pid;]])],[struct_utmp_pid=yes],[struct_utmp_pid=no])])
153 if test x$struct_utmp_pid = xyes; then
154 AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid)
155 fi
156 ) dnl# AC_CHECK_HEADER(utmp.h
157
158 dnl# --------------------------------------------
159
160 AC_CHECK_HEADER(utmpx.h,
161 [AC_CACHE_CHECK([for struct utmpx], struct_utmpx,
162 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
163 #include <utmpx.h>]], [[struct utmpx ut;]])],[struct_utmpx=yes],[struct_utmpx=no])])
164 if test x$struct_utmpx = xyes; then
165 AC_DEFINE(HAVE_STRUCT_UTMPX, 1, Define if utmpx.h has struct utmpx)
166 fi
167 ]
168
169 AC_CACHE_CHECK(for host in utmpx struct, struct_utmpx_host,
170 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
171 #include <utmpx.h>]], [[struct utmpx utx; utx.ut_host;]])],[struct_utmpx_host=yes],[struct_utmpx_host=no])])
172 if test x$struct_utmpx_host = xyes; then
173 AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host)
174 fi
175
176 AC_CACHE_CHECK(for session in utmpx struct, struct_utmpx_session,
177 [AC_TRY_COMPILE([#include <sys/types.h>
178 #include <utmpx.h>],
179 [struct utmpx utx; utx.ut_session;],
180 struct_utmpx_session=yes, struct_utmpx_session=no)])
181 if test x$struct_utmpx_session = xyes; then
182 AC_DEFINE(HAVE_UTMPX_SESSION, 1, Define if struct utmpx contains ut_session)
183 fi
184 ) dnl# AC_CHECK_HEADER(utmpx.h
185
186 dnl# --------------------------------------------------------------------------
187 dnl# check for struct lastlog
188 AC_CACHE_CHECK(for struct lastlog, struct_lastlog,
189 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
190 #include <utmp.h>
191 #ifdef HAVE_LASTLOG_H
192 #include <lastlog.h>
193 #endif
194 ]], [[struct lastlog ll;]])],[struct_lastlog=yes],[struct_lastlog=no])])
195 if test x$struct_lastlog = xyes; then
196 AC_DEFINE(HAVE_STRUCT_LASTLOG, 1, Define if utmp.h or lastlog.h has struct lastlog)
197 fi
198
199 dnl# check for struct lastlogx
200 AC_CACHE_CHECK(for struct lastlogx, struct_lastlogx,
201 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
202 #include <utmpx.h>
203 #ifdef HAVE_LASTLOG_H
204 #include <lastlog.h>
205 #endif
206 ]], [[struct lastlogx ll;]])],[struct_lastlogx=yes],[struct_lastlogx=no])])
207 if test x$struct_lastlogx = xyes; then
208 AC_DEFINE(HAVE_STRUCT_LASTLOGX, 1, Define if utmpx.h or lastlog.h has struct lastlogx)
209 fi
210
211 dnl# --------------------------------------------------------------------------
212 dnl# FIND FILES
213 dnl# --------------------------------------------------------------------------
214
215 dnl# find utmp
216 AC_CACHE_CHECK(where utmp is located, path_utmp,
217 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
218 #include <stdlib.h>
219 #include <sys/types.h>
220 #include <utmp.h>
221 #include <errno.h>
222 main()
223 {
224 char **u, *utmplist[] = {
225 "/var/run/utmp", "/var/adm/utmp", "/etc/utmp", "/usr/etc/utmp", "/usr/adm/utmp", NULL };
226 FILE *a, *f=fopen("conftestval", "w");
227 if (!f) exit(1);
228 #ifdef UTMP_FILE
229 fprintf(f, "%s\n", UTMP_FILE);
230 exit(0);
231 #endif
232 #ifdef _PATH_UTMP
233 fprintf(f, "%s\n", _PATH_UTMP);
234 exit(0);
235 #endif
236 for (u = utmplist; *u; u++) {
237 if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
238 fprintf(f, "%s\n", *u);
239 exit(0);
240 }
241 }
242 exit(0);
243 }]])],[path_utmp=`cat conftestval`],[path_utmp=],[dnl
244 AC_MSG_WARN(Define UTMP_FILE in config.h manually)])])
245 if test x$path_utmp != x; then
246 AC_DEFINE_UNQUOTED(UTMP_FILE, "$path_utmp", Define location of utmp)
247 fi
248
249 dnl# --------------------------------------------------------------------------
250
251 dnl# find utmpx - if a utmp file exists at the same location and is more than
252 dnl# a day newer, then dump the utmpx. People leave lots of junk around.
253 AC_CACHE_CHECK(where utmpx is located, path_utmpx,
254 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
255 #include <stdlib.h>
256 #include <sys/types.h>
257 #include <utmpx.h>
258 #include <errno.h>
259 #include <sys/stat.h>
260 #ifdef HAVE_STRING_H
261 #include <string.h>
262 #endif
263 main()
264 {
265 char **u, *p, *utmplist[] = {
266 #ifdef UTMPX_FILE
267 UTMPX_FILE,
268 #endif
269 #ifdef _PATH_UTMPX
270 _PATH_UTMPX,
271 #endif
272 "/var/adm/utmpx", "/etc/utmpx", NULL };
273 FILE *a, *f=fopen("conftestval", "w");
274 struct stat statu, statux;
275 if (!f) exit(1);
276 for (u = utmplist; *u; u++) {
277 if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
278 if (stat(*u, &statux) < 0)
279 continue;
280 p = strdup(*u);
281 p[strlen(p) - 1] = '\0';
282 if (stat(p, &statu) >= 0
283 && (statu.st_mtime - statux.st_mtime > 86400))
284 continue;
285 fprintf(f, "%s\n", *u);
286 exit(0);
287 }
288 }
289 exit(0);
290 }]])],[path_utmpx=`cat conftestval`],[path_utmpx=],[dnl
291 AC_MSG_WARN(Define UTMPX_FILE in config.h manually)])])
292 if test x$path_utmpx != x; then
293 AC_DEFINE_UNQUOTED(UTMPX_FILE, "$path_utmpx", Define location of utmpx)
294 fi
295
296 dnl# --------------------------------------------------------------------------
297
298 dnl# find wtmp
299 AC_CACHE_CHECK(where wtmp is located, path_wtmp,
300 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
301 #include <stdlib.h>
302 #include <sys/types.h>
303 #ifdef HAVE_UTMP_H
304 #include <utmp.h>
305 #endif
306 #include <errno.h>
307 main()
308 {
309 char **w, *wtmplist[] = {
310 "/var/log/wtmp", "/var/adm/wtmp", "/etc/wtmp", "/usr/etc/wtmp", "/usr/adm/wtmp", NULL };
311 FILE *a, *f=fopen("conftestval", "w");
312 if (!f) exit(1);
313 #ifdef WTMP_FILE
314 fprintf(f, "%s\n", WTMP_FILE);
315 exit(0);
316 #endif
317 #ifdef _PATH_WTMP
318 fprintf(f, "%s\n", _PATH_WTMP);
319 exit(0);
320 #endif
321 for (w = wtmplist; *w; w++) {
322 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
323 fprintf(f, "%s\n", *w);
324 exit(0);
325 }
326 }
327 exit(0);
328 }]])],[path_wtmp=`cat conftestval`],[path_wtmp=],[dnl
329 AC_MSG_WARN(Define WTMP_FILE in config.h manually)])])
330 if test x$path_wtmp != x; then
331 AC_DEFINE_UNQUOTED(WTMP_FILE, "$path_wtmp", Define location of wtmp)
332 fi
333 dnl# --------------------------------------------------------------------------
334
335 dnl# find wtmpx
336 AC_CACHE_CHECK(where wtmpx is located, path_wtmpx,
337 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
338 #include <stdlib.h>
339 #ifdef HAVE_UTMPX_H
340 #include <utmpx.h>
341 #endif
342 #include <errno.h>
343 main()
344 {
345 char **w, *wtmplist[] = {
346 "/var/log/wtmpx", "/var/adm/wtmpx", NULL };
347 FILE *a, *f=fopen("conftestval", "w");
348 if (!f) exit(1);
349 #ifdef WTMPX_FILE
350 fprintf(f, "%s\n", WTMPX_FILE);
351 exit(0);
352 #endif
353 #ifdef _PATH_WTMPX
354 fprintf(f, "%s\n", _PATH_WTMPX);
355 exit(0);
356 #endif
357 for (w = wtmplist; *w; w++) {
358 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
359 fprintf(f, "%s\n", *w);
360 exit(0);
361 }
362 }
363 exit(0);
364 }]])],[path_wtmpx=`cat conftestval`],[path_wtmpx=],[dnl
365 AC_MSG_WARN(Define WTMPX_FILE in config.h manually)])])
366 if test x$path_wtmpx != x; then
367 AC_DEFINE_UNQUOTED(WTMPX_FILE, "$path_wtmpx", Define location of wtmpx)
368 fi
369 dnl# --------------------------------------------------------------------------
370
371 dnl# find lastlog
372 AC_CACHE_CHECK(where lastlog is located, path_lastlog,
373 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
374 #include <stdlib.h>
375 #include <sys/types.h>
376 #ifdef HAVE_UTMPX_H
377 #include <utmpx.h>
378 #elif defined(HAVE_UTMP_H)
379 #include <utmp.h>
380 #endif
381 #ifdef HAVE_LASTLOG_H
382 #include <lastlog.h>
383 #endif
384 #include <errno.h>
385 main()
386 {
387 char **w, *lastloglist[] = { "/var/log/lastlog", NULL };
388 FILE *a, *f=fopen("conftestval", "w");
389 if (!f) exit(1);
390 #ifdef LASTLOG_FILE
391 fprintf(f, "%s\n", LASTLOG_FILE);
392 exit(0);
393 #endif
394 #ifdef _PATH_LASTLOG
395 fprintf(f, "%s\n", _PATH_LASTLOG);
396 exit(0);
397 #endif
398 for (w = lastloglist; *w; w++) {
399 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
400 fprintf(f, "%s\n", *w);
401 exit(0);
402 }
403 }
404 exit(0);
405 }]])],[path_lastlog=`cat conftestval`],[path_lastlog=],[dnl
406 AC_MSG_WARN(Define LASTLOG_FILE in config.h manually)])])
407 if test x$path_lastlog != x; then
408 AC_DEFINE_UNQUOTED(LASTLOG_FILE, "$path_lastlog", Define location of lastlog)
409 if test -d "$path_lastlog"; then
410 AC_DEFINE(LASTLOG_IS_DIR, 1, Define if lastlog is provided via a directory)
411 fi
412 fi
413 dnl# --------------------------------------------------------------------------
414
415 dnl# find lastlogx
416 AC_CACHE_CHECK(where lastlogx is located, path_lastlogx,
417 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
418 #include <stdlib.h>
419 #ifdef HAVE_UTMPX_H
420 #include <utmpx.h>
421 #endif
422 #include <errno.h>
423 main()
424 {
425 char **w, *wtmplist[] = { "/var/log/lastlogx", "/var/adm/lastlogx", NULL };
426 FILE *a, *f=fopen("conftestval", "w");
427 if (!f) exit(1);
428 #ifdef LASTLOGX_FILE
429 fprintf(f, "%s\n", LASTLOGX_FILE);
430 exit(0);
431 #endif
432 #ifdef _PATH_LASTLOGX
433 fprintf(f, "%s\n", _PATH_LASTLOGX);
434 exit(0);
435 #endif
436 for (w = wtmplist; *w; w++) {
437 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
438 fprintf(f, "%s\n", *w);
439 exit(0);
440 }
441 }
442 exit(0);
443 }]])],[path_lastlogx=`cat conftestval`],[path_lastlogx=],[dnl
444 AC_MSG_WARN(Define LASTLOGX_FILE in config.h manually)])])
445 if test x$path_lastlogx != x; then
446 AC_DEFINE_UNQUOTED(LASTLOGX_FILE, "$path_lastlogx", Define location of lastlogx)
447 fi
448 ])
449
450 AC_DEFUN([SCM_RIGHTS_CHECK],
451 [
452 AC_CACHE_CHECK(for unix-compliant filehandle passing ability, can_pass_fds,
453 [AC_TRY_LINK([
454 #include <cstddef> // broken bsds (is that redundant?) need this
455 #include <sys/types.h>
456 #include <sys/socket.h>
457 #include <sys/uio.h>
458 ],[
459 {
460 msghdr msg;
461 iovec iov;
462 char buf [100];
463 char data = 0;
464
465 iov.iov_base = &data;
466 iov.iov_len = 1;
467
468 msg.msg_iov = &iov;
469 msg.msg_iovlen = 1;
470 msg.msg_control = buf;
471 msg.msg_controllen = sizeof buf;
472
473 cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
474 cmsg->cmsg_level = SOL_SOCKET;
475 cmsg->cmsg_type = SCM_RIGHTS;
476 cmsg->cmsg_len = 100;
477
478 *(int *)CMSG_DATA (cmsg) = 5;
479
480 return sendmsg (3, &msg, 0);
481 }
482 ],[can_pass_fds=yes],[can_pass_fds=no])])
483 if test x$can_pass_fds = xyes; then
484 AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing)
485 else
486 AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability])
487 fi
488 ])
489
490 AC_DEFUN([TTY_GROUP_CHECK],
491 [
492 AC_CACHE_CHECK([for tty group], tty_group,
493 [AC_TRY_RUN([
494 #include <sys/types.h>
495 #include <sys/stat.h>
496 #include <unistd.h>
497 #include <grp.h>
498
499 main()
500 {
501 struct stat st;
502 struct group *gr;
503 char *tty;
504 gr = getgrnam("tty");
505 tty = ttyname(0);
506 if (gr != 0
507 && tty != 0
508 && (stat(tty, &st)) == 0
509 && st.st_gid == gr->gr_gid)
510 return 0;
511 else
512 return 1;
513 }],
514 [tty_group=yes],[tty_group=no],[tty_group=no])])
515 if test x$tty_group = xyes; then
516 AC_DEFINE(TTY_GID_SUPPORT, 1, "")
517 fi])
518