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/cvs/libptytty/ptytty.m4
Revision: 1.4
Committed: Mon Jan 23 10:10:50 2006 UTC (18 years, 3 months ago) by ayin
Branch: MAIN
Changes since 1.3: +41 -0 lines
Log Message:
*** empty log message ***

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