ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libptytty/ptytty.m4
Revision: 1.7
Committed: Wed Jan 25 22:07:21 2006 UTC (18 years, 3 months ago) by root
Branch: MAIN
CVS Tags: rel-0_1, rel-0_2
Changes since 1.6: +4 -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 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 [ --enable-utmp enable utmp (utmpx) support],
89 [if test x$enableval = xyes -o x$enableval = xno; then
90 support_utmp=$enableval
91 fi])
92
93 AC_ARG_ENABLE(wtmp,
94 [ --enable-wtmp enable wtmp (wtmpx) support (requires --enable-utmp)],
95 [if test x$enableval = xyes -o x$enableval = xno; then
96 support_wtmp=$enableval
97 fi])
98
99 AC_ARG_ENABLE(lastlog,
100 [ --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 )
120
121 AC_CHECK_HEADERS( \
122 utmp.h \
123 utmpx.h \
124 lastlog.h \
125 )
126
127 dnl# --------------------------------------------------------------------------
128 dnl# DO ALL UTMP AND WTMP CHECKING
129 dnl# --------------------------------------------------------------------------
130 dnl# check for host field in utmp structure
131
132 dnl# --------------------------------------------
133 AC_CHECK_HEADER(utmp.h,
134 [AC_CACHE_CHECK([for struct utmp], struct_utmp,
135 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
136 #include <utmp.h>]], [[struct utmp ut;]])],[struct_utmp=yes],[struct_utmp=no])])
137 if test x$struct_utmp = xyes; then
138 AC_DEFINE(HAVE_STRUCT_UTMP, 1, Define if utmp.h has struct utmp)
139 fi
140 ]
141
142 AC_CACHE_CHECK(for ut_host in utmp struct, struct_utmp_host,
143 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
144 #include <utmp.h>]], [[struct utmp ut; ut.ut_host;]])],[struct_utmp_host=yes],[struct_utmp_host=no])])
145 if test x$struct_utmp_host = xyes; then
146 AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host)
147 fi
148
149 AC_CACHE_CHECK(for ut_pid in utmp struct, struct_utmp_pid,
150 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
151 #include <utmp.h>]], [[struct utmp ut; ut.ut_pid;]])],[struct_utmp_pid=yes],[struct_utmp_pid=no])])
152 if test x$struct_utmp_pid = xyes; then
153 AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid)
154 fi
155 ) dnl# AC_CHECK_HEADER(utmp.h
156
157 dnl# --------------------------------------------
158
159 AC_CHECK_HEADER(utmpx.h,
160 [AC_CACHE_CHECK([for struct utmpx], struct_utmpx,
161 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
162 #include <utmpx.h>]], [[struct utmpx ut;]])],[struct_utmpx=yes],[struct_utmpx=no])])
163 if test x$struct_utmpx = xyes; then
164 AC_DEFINE(HAVE_STRUCT_UTMPX, 1, Define if utmpx.h has struct utmpx)
165 fi
166 ]
167
168 AC_CACHE_CHECK(for host in utmpx struct, struct_utmpx_host,
169 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
170 #include <utmpx.h>]], [[struct utmpx utx; utx.ut_host;]])],[struct_utmpx_host=yes],[struct_utmpx_host=no])])
171 if test x$struct_utmpx_host = xyes; then
172 AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host)
173 fi
174
175 AC_CACHE_CHECK(for session in utmpx struct, struct_utmpx_session,
176 [AC_TRY_COMPILE([#include <sys/types.h>
177 #include <utmpx.h>],
178 [struct utmpx utx; utx.ut_session;],
179 struct_utmpx_session=yes, struct_utmpx_session=no)])
180 if test x$struct_utmpx_session = xyes; then
181 AC_DEFINE(HAVE_UTMPX_SESSION, 1, Define if struct utmpx contains ut_session)
182 fi
183 ) dnl# AC_CHECK_HEADER(utmpx.h
184
185 dnl# --------------------------------------------------------------------------
186 dnl# check for struct lastlog
187 AC_CACHE_CHECK(for struct lastlog, struct_lastlog,
188 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
189 #include <utmp.h>
190 #ifdef HAVE_LASTLOG_H
191 #include <lastlog.h>
192 #endif
193 ]], [[struct lastlog ll;]])],[struct_lastlog=yes],[struct_lastlog=no])])
194 if test x$struct_lastlog = xyes; then
195 AC_DEFINE(HAVE_STRUCT_LASTLOG, 1, Define if utmp.h or lastlog.h has struct lastlog)
196 fi
197
198 dnl# check for struct lastlogx
199 AC_CACHE_CHECK(for struct lastlogx, struct_lastlogx,
200 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
201 #include <utmpx.h>
202 #ifdef HAVE_LASTLOG_H
203 #include <lastlog.h>
204 #endif
205 ]], [[struct lastlogx ll;]])],[struct_lastlogx=yes],[struct_lastlogx=no])])
206 if test x$struct_lastlogx = xyes; then
207 AC_DEFINE(HAVE_STRUCT_LASTLOGX, 1, Define if utmpx.h or lastlog.h has struct lastlogx)
208 fi
209
210 dnl# --------------------------------------------------------------------------
211 dnl# FIND FILES
212 dnl# --------------------------------------------------------------------------
213
214 dnl# find utmp
215 AC_CACHE_CHECK(where utmp is located, path_utmp,
216 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
217 #include <sys/types.h>
218 #include <utmp.h>
219 #include <errno.h>
220 main()
221 {
222 char **u, *utmplist[] = {
223 "/var/run/utmp", "/var/adm/utmp", "/etc/utmp", "/usr/etc/utmp", "/usr/adm/utmp", NULL };
224 FILE *a, *f=fopen("conftestval", "w");
225 if (!f) exit(1);
226 #ifdef UTMP_FILE
227 fprintf(f, "%s\n", UTMP_FILE);
228 exit(0);
229 #endif
230 #ifdef _PATH_UTMP
231 fprintf(f, "%s\n", _PATH_UTMP);
232 exit(0);
233 #endif
234 for (u = utmplist; *u; u++) {
235 if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
236 fprintf(f, "%s\n", *u);
237 exit(0);
238 }
239 }
240 exit(0);
241 }]])],[path_utmp=`cat conftestval`],[path_utmp=],[dnl
242 AC_MSG_WARN(Define UTMP_FILE in config.h manually)])])
243 if test x$path_utmp != x; then
244 AC_DEFINE_UNQUOTED(UTMP_FILE, "$path_utmp", Define location of utmp)
245 fi
246
247 dnl# --------------------------------------------------------------------------
248
249 dnl# find utmpx - if a utmp file exists at the same location and is more than
250 dnl# a day newer, then dump the utmpx. People leave lots of junk around.
251 AC_CACHE_CHECK(where utmpx is located, path_utmpx,
252 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
253 #include <sys/types.h>
254 #include <utmpx.h>
255 #include <errno.h>
256 #include <sys/stat.h>
257 #ifdef HAVE_STRING_H
258 #include <string.h>
259 #endif
260 main()
261 {
262 char **u, *p, *utmplist[] = {
263 #ifdef UTMPX_FILE
264 UTMPX_FILE,
265 #endif
266 #ifdef _PATH_UTMPX
267 _PATH_UTMPX,
268 #endif
269 "/var/adm/utmpx", "/etc/utmpx", NULL };
270 FILE *a, *f=fopen("conftestval", "w");
271 struct stat statu, statux;
272 if (!f) exit(1);
273 for (u = utmplist; *u; u++) {
274 if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
275 if (stat(*u, &statux) < 0)
276 continue;
277 p = strdup(*u);
278 p[strlen(p) - 1] = '\0';
279 if (stat(p, &statu) >= 0
280 && (statu.st_mtime - statux.st_mtime > 86400))
281 continue;
282 fprintf(f, "%s\n", *u);
283 exit(0);
284 }
285 }
286 exit(0);
287 }]])],[path_utmpx=`cat conftestval`],[path_utmpx=],[dnl
288 AC_MSG_WARN(Define UTMPX_FILE in config.h manually)])])
289 if test x$path_utmpx != x; then
290 AC_DEFINE_UNQUOTED(UTMPX_FILE, "$path_utmpx", Define location of utmpx)
291 fi
292
293 dnl# --------------------------------------------------------------------------
294
295 dnl# find wtmp
296 AC_CACHE_CHECK(where wtmp is located, path_wtmp,
297 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
298 #include <sys/types.h>
299 #ifdef HAVE_UTMP_H
300 #include <utmp.h>
301 #endif
302 #include <errno.h>
303 main()
304 {
305 char **w, *wtmplist[] = {
306 "/var/log/wtmp", "/var/adm/wtmp", "/etc/wtmp", "/usr/etc/wtmp", "/usr/adm/wtmp", NULL };
307 FILE *a, *f=fopen("conftestval", "w");
308 if (!f) exit(1);
309 #ifdef WTMP_FILE
310 fprintf(f, "%s\n", WTMP_FILE);
311 exit(0);
312 #endif
313 #ifdef _PATH_WTMP
314 fprintf(f, "%s\n", _PATH_WTMP);
315 exit(0);
316 #endif
317 for (w = wtmplist; *w; w++) {
318 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
319 fprintf(f, "%s\n", *w);
320 exit(0);
321 }
322 }
323 exit(0);
324 }]])],[path_wtmp=`cat conftestval`],[path_wtmp=],[dnl
325 AC_MSG_WARN(Define WTMP_FILE in config.h manually)])])
326 if test x$path_wtmp != x; then
327 AC_DEFINE_UNQUOTED(WTMP_FILE, "$path_wtmp", Define location of wtmp)
328 fi
329 dnl# --------------------------------------------------------------------------
330
331 dnl# find wtmpx
332 AC_CACHE_CHECK(where wtmpx is located, path_wtmpx,
333 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
334 #ifdef HAVE_UTMPX_H
335 #include <utmpx.h>
336 #endif
337 #include <errno.h>
338 main()
339 {
340 char **w, *wtmplist[] = {
341 "/var/log/wtmpx", "/var/adm/wtmpx", NULL };
342 FILE *a, *f=fopen("conftestval", "w");
343 if (!f) exit(1);
344 #ifdef WTMPX_FILE
345 fprintf(f, "%s\n", WTMPX_FILE);
346 exit(0);
347 #endif
348 #ifdef _PATH_WTMPX
349 fprintf(f, "%s\n", _PATH_WTMPX);
350 exit(0);
351 #endif
352 for (w = wtmplist; *w; w++) {
353 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
354 fprintf(f, "%s\n", *w);
355 exit(0);
356 }
357 }
358 exit(0);
359 }]])],[path_wtmpx=`cat conftestval`],[path_wtmpx=],[dnl
360 AC_MSG_WARN(Define WTMPX_FILE in config.h manually)])])
361 if test x$path_wtmpx != x; then
362 AC_DEFINE_UNQUOTED(WTMPX_FILE, "$path_wtmpx", Define location of wtmpx)
363 fi
364 dnl# --------------------------------------------------------------------------
365
366 dnl# find lastlog
367 AC_CACHE_CHECK(where lastlog is located, path_lastlog,
368 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
369 #include <sys/types.h>
370 #ifdef HAVE_UTMPX_H
371 #include <utmpx.h>
372 #elif defined(HAVE_UTMP_H)
373 #include <utmp.h>
374 #endif
375 #ifdef HAVE_LASTLOG_H
376 #include <lastlog.h>
377 #endif
378 #include <errno.h>
379 main()
380 {
381 char **w, *lastloglist[] = { "/var/log/lastlog", NULL };
382 FILE *a, *f=fopen("conftestval", "w");
383 if (!f) exit(1);
384 #ifdef LASTLOG_FILE
385 fprintf(f, "%s\n", LASTLOG_FILE);
386 exit(0);
387 #endif
388 #ifdef _PATH_LASTLOG
389 fprintf(f, "%s\n", _PATH_LASTLOG);
390 exit(0);
391 #endif
392 for (w = lastloglist; *w; w++) {
393 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
394 fprintf(f, "%s\n", *w);
395 exit(0);
396 }
397 }
398 exit(0);
399 }]])],[path_lastlog=`cat conftestval`],[path_lastlog=],[dnl
400 AC_MSG_WARN(Define LASTLOG_FILE in config.h manually)])])
401 if test x$path_lastlog != x; then
402 AC_DEFINE_UNQUOTED(LASTLOG_FILE, "$path_lastlog", Define location of lastlog)
403 if test -d "$path_lastlog"; then
404 AC_DEFINE(LASTLOG_IS_DIR, 1, Define if lastlog is provided via a directory)
405 fi
406 fi
407 dnl# --------------------------------------------------------------------------
408
409 dnl# find lastlogx
410 AC_CACHE_CHECK(where lastlogx is located, path_lastlogx,
411 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
412 #ifdef HAVE_UTMPX_H
413 #include <utmpx.h>
414 #endif
415 #include <errno.h>
416 main()
417 {
418 char **w, *wtmplist[] = { "/var/log/lastlogx", "/var/adm/lastlogx", NULL };
419 FILE *a, *f=fopen("conftestval", "w");
420 if (!f) exit(1);
421 #ifdef LASTLOGX_FILE
422 fprintf(f, "%s\n", LASTLOGX_FILE);
423 exit(0);
424 #endif
425 #ifdef _PATH_LASTLOGX
426 fprintf(f, "%s\n", _PATH_LASTLOGX);
427 exit(0);
428 #endif
429 for (w = wtmplist; *w; w++) {
430 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
431 fprintf(f, "%s\n", *w);
432 exit(0);
433 }
434 }
435 exit(0);
436 }]])],[path_lastlogx=`cat conftestval`],[path_lastlogx=],[dnl
437 AC_MSG_WARN(Define LASTLOGX_FILE in config.h manually)])])
438 if test x$path_lastlogx != x; then
439 AC_DEFINE_UNQUOTED(LASTLOGX_FILE, "$path_lastlogx", Define location of lastlogx)
440 fi
441
442 if test x$support_utmp != xyes; then
443 echo " utmp support: disabled"
444 echo
445 else
446 echo " utmp support: enabled
447 utmp file: $path_utmp
448 utmpx file: $path_utmpx
449 wtmp file: $path_wtmp
450 wtmpx file: $path_wtmpx
451 lastlog file: $path_lastlog
452 lastlogx file: $path_lastlogx"
453 fi
454 ])
455
456 AC_DEFUN([SCM_RIGHTS_CHECK],
457 [
458 AC_CACHE_CHECK(for unix-compliant filehandle passing ability, can_pass_fds,
459 [AC_TRY_LINK([
460 #include <cstddef> // broken bsds (is that redundant?) need this
461 #include <sys/types.h>
462 #include <sys/socket.h>
463 #include <sys/uio.h>
464 ],[
465 {
466 msghdr msg;
467 iovec iov;
468 char buf [100];
469 char data = 0;
470
471 iov.iov_base = &data;
472 iov.iov_len = 1;
473
474 msg.msg_iov = &iov;
475 msg.msg_iovlen = 1;
476 msg.msg_control = buf;
477 msg.msg_controllen = sizeof buf;
478
479 cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
480 cmsg->cmsg_level = SOL_SOCKET;
481 cmsg->cmsg_type = SCM_RIGHTS;
482 cmsg->cmsg_len = 100;
483
484 *(int *)CMSG_DATA (cmsg) = 5;
485
486 return sendmsg (3, &msg, 0);
487 }
488 ],[can_pass_fds=yes],[can_pass_fds=no])])
489 if test x$can_pass_fds = xyes; then
490 AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing)
491 else
492 AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability])
493 fi
494 ])
495
496 AC_DEFUN([TTY_GROUP_CHECK],
497 [
498 AC_CACHE_CHECK([for tty group], tty_group,
499 [AC_TRY_RUN([
500 #include <sys/types.h>
501 #include <sys/stat.h>
502 #include <unistd.h>
503 #include <grp.h>
504
505 main()
506 {
507 struct stat st;
508 struct group *gr;
509 char *tty;
510 gr = getgrnam("tty");
511 tty = ttyname(0);
512 if (gr != 0
513 && tty != 0
514 && (stat(tty, &st)) == 0
515 && st.st_gid == gr->gr_gid)
516 return 0;
517 else
518 return 1;
519 }],
520 [tty_group=yes],[tty_group=no],[tty_group=no])])
521 if test x$tty_group = xyes; then
522 AC_DEFINE(TTY_GID_SUPPORT, 1, "")
523 fi])
524