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/cvs/libptytty/ptytty.m4
Revision: 1.11
Committed: Wed Oct 17 08:13:42 2007 UTC (16 years, 7 months ago) by ayin
Branch: MAIN
Changes since 1.10: +3 -3 lines
Log Message:
Pretty print help strings.

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 )
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 <stdlib.h>
218 #include <sys/types.h>
219 #include <utmp.h>
220 #include <errno.h>
221 main()
222 {
223 char **u, *utmplist[] = {
224 "/var/run/utmp", "/var/adm/utmp", "/etc/utmp", "/usr/etc/utmp", "/usr/adm/utmp", NULL };
225 FILE *a, *f=fopen("conftestval", "w");
226 if (!f) exit(1);
227 #ifdef UTMP_FILE
228 fprintf(f, "%s\n", UTMP_FILE);
229 exit(0);
230 #endif
231 #ifdef _PATH_UTMP
232 fprintf(f, "%s\n", _PATH_UTMP);
233 exit(0);
234 #endif
235 for (u = utmplist; *u; u++) {
236 if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
237 fprintf(f, "%s\n", *u);
238 exit(0);
239 }
240 }
241 exit(0);
242 }]])],[path_utmp=`cat conftestval`],[path_utmp=],[dnl
243 AC_MSG_WARN(Define UTMP_FILE in config.h manually)])])
244 if test x$path_utmp != x; then
245 AC_DEFINE_UNQUOTED(UTMP_FILE, "$path_utmp", Define location of utmp)
246 fi
247
248 dnl# --------------------------------------------------------------------------
249
250 dnl# find utmpx - if a utmp file exists at the same location and is more than
251 dnl# a day newer, then dump the utmpx. People leave lots of junk around.
252 AC_CACHE_CHECK(where utmpx is located, path_utmpx,
253 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
254 #include <stdlib.h>
255 #include <sys/types.h>
256 #include <utmpx.h>
257 #include <errno.h>
258 #include <sys/stat.h>
259 #ifdef HAVE_STRING_H
260 #include <string.h>
261 #endif
262 main()
263 {
264 char **u, *p, *utmplist[] = {
265 #ifdef UTMPX_FILE
266 UTMPX_FILE,
267 #endif
268 #ifdef _PATH_UTMPX
269 _PATH_UTMPX,
270 #endif
271 "/var/adm/utmpx", "/etc/utmpx", NULL };
272 FILE *a, *f=fopen("conftestval", "w");
273 struct stat statu, statux;
274 if (!f) exit(1);
275 for (u = utmplist; *u; u++) {
276 if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
277 if (stat(*u, &statux) < 0)
278 continue;
279 p = strdup(*u);
280 p[strlen(p) - 1] = '\0';
281 if (stat(p, &statu) >= 0
282 && (statu.st_mtime - statux.st_mtime > 86400))
283 continue;
284 fprintf(f, "%s\n", *u);
285 exit(0);
286 }
287 }
288 exit(0);
289 }]])],[path_utmpx=`cat conftestval`],[path_utmpx=],[dnl
290 AC_MSG_WARN(Define UTMPX_FILE in config.h manually)])])
291 if test x$path_utmpx != x; then
292 AC_DEFINE_UNQUOTED(UTMPX_FILE, "$path_utmpx", Define location of utmpx)
293 fi
294
295 dnl# --------------------------------------------------------------------------
296
297 dnl# find wtmp
298 AC_CACHE_CHECK(where wtmp is located, path_wtmp,
299 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
300 #include <stdlib.h>
301 #include <sys/types.h>
302 #ifdef HAVE_UTMP_H
303 #include <utmp.h>
304 #endif
305 #include <errno.h>
306 main()
307 {
308 char **w, *wtmplist[] = {
309 "/var/log/wtmp", "/var/adm/wtmp", "/etc/wtmp", "/usr/etc/wtmp", "/usr/adm/wtmp", NULL };
310 FILE *a, *f=fopen("conftestval", "w");
311 if (!f) exit(1);
312 #ifdef WTMP_FILE
313 fprintf(f, "%s\n", WTMP_FILE);
314 exit(0);
315 #endif
316 #ifdef _PATH_WTMP
317 fprintf(f, "%s\n", _PATH_WTMP);
318 exit(0);
319 #endif
320 for (w = wtmplist; *w; w++) {
321 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
322 fprintf(f, "%s\n", *w);
323 exit(0);
324 }
325 }
326 exit(0);
327 }]])],[path_wtmp=`cat conftestval`],[path_wtmp=],[dnl
328 AC_MSG_WARN(Define WTMP_FILE in config.h manually)])])
329 if test x$path_wtmp != x; then
330 AC_DEFINE_UNQUOTED(WTMP_FILE, "$path_wtmp", Define location of wtmp)
331 fi
332 dnl# --------------------------------------------------------------------------
333
334 dnl# find wtmpx
335 AC_CACHE_CHECK(where wtmpx is located, path_wtmpx,
336 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
337 #include <stdlib.h>
338 #ifdef HAVE_UTMPX_H
339 #include <utmpx.h>
340 #endif
341 #include <errno.h>
342 main()
343 {
344 char **w, *wtmplist[] = {
345 "/var/log/wtmpx", "/var/adm/wtmpx", NULL };
346 FILE *a, *f=fopen("conftestval", "w");
347 if (!f) exit(1);
348 #ifdef WTMPX_FILE
349 fprintf(f, "%s\n", WTMPX_FILE);
350 exit(0);
351 #endif
352 #ifdef _PATH_WTMPX
353 fprintf(f, "%s\n", _PATH_WTMPX);
354 exit(0);
355 #endif
356 for (w = wtmplist; *w; w++) {
357 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
358 fprintf(f, "%s\n", *w);
359 exit(0);
360 }
361 }
362 exit(0);
363 }]])],[path_wtmpx=`cat conftestval`],[path_wtmpx=],[dnl
364 AC_MSG_WARN(Define WTMPX_FILE in config.h manually)])])
365 if test x$path_wtmpx != x; then
366 AC_DEFINE_UNQUOTED(WTMPX_FILE, "$path_wtmpx", Define location of wtmpx)
367 fi
368 dnl# --------------------------------------------------------------------------
369
370 dnl# find lastlog
371 AC_CACHE_CHECK(where lastlog is located, path_lastlog,
372 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
373 #include <stdlib.h>
374 #include <sys/types.h>
375 #ifdef HAVE_UTMPX_H
376 #include <utmpx.h>
377 #elif defined(HAVE_UTMP_H)
378 #include <utmp.h>
379 #endif
380 #ifdef HAVE_LASTLOG_H
381 #include <lastlog.h>
382 #endif
383 #include <errno.h>
384 main()
385 {
386 char **w, *lastloglist[] = { "/var/log/lastlog", NULL };
387 FILE *a, *f=fopen("conftestval", "w");
388 if (!f) exit(1);
389 #ifdef LASTLOG_FILE
390 fprintf(f, "%s\n", LASTLOG_FILE);
391 exit(0);
392 #endif
393 #ifdef _PATH_LASTLOG
394 fprintf(f, "%s\n", _PATH_LASTLOG);
395 exit(0);
396 #endif
397 for (w = lastloglist; *w; w++) {
398 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
399 fprintf(f, "%s\n", *w);
400 exit(0);
401 }
402 }
403 exit(0);
404 }]])],[path_lastlog=`cat conftestval`],[path_lastlog=],[dnl
405 AC_MSG_WARN(Define LASTLOG_FILE in config.h manually)])])
406 if test x$path_lastlog != x; then
407 AC_DEFINE_UNQUOTED(LASTLOG_FILE, "$path_lastlog", Define location of lastlog)
408 if test -d "$path_lastlog"; then
409 AC_DEFINE(LASTLOG_IS_DIR, 1, Define if lastlog is provided via a directory)
410 fi
411 fi
412 dnl# --------------------------------------------------------------------------
413
414 dnl# find lastlogx
415 AC_CACHE_CHECK(where lastlogx is located, path_lastlogx,
416 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
417 #include <stdlib.h>
418 #ifdef HAVE_UTMPX_H
419 #include <utmpx.h>
420 #endif
421 #include <errno.h>
422 main()
423 {
424 char **w, *wtmplist[] = { "/var/log/lastlogx", "/var/adm/lastlogx", NULL };
425 FILE *a, *f=fopen("conftestval", "w");
426 if (!f) exit(1);
427 #ifdef LASTLOGX_FILE
428 fprintf(f, "%s\n", LASTLOGX_FILE);
429 exit(0);
430 #endif
431 #ifdef _PATH_LASTLOGX
432 fprintf(f, "%s\n", _PATH_LASTLOGX);
433 exit(0);
434 #endif
435 for (w = wtmplist; *w; w++) {
436 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
437 fprintf(f, "%s\n", *w);
438 exit(0);
439 }
440 }
441 exit(0);
442 }]])],[path_lastlogx=`cat conftestval`],[path_lastlogx=],[dnl
443 AC_MSG_WARN(Define LASTLOGX_FILE in config.h manually)])])
444 if test x$path_lastlogx != x; then
445 AC_DEFINE_UNQUOTED(LASTLOGX_FILE, "$path_lastlogx", Define location of lastlogx)
446 fi
447 ])
448
449 AC_DEFUN([SCM_RIGHTS_CHECK],
450 [
451 AC_CACHE_CHECK(for unix-compliant filehandle passing ability, can_pass_fds,
452 [AC_TRY_LINK([
453 #include <cstddef> // broken bsds (is that redundant?) need this
454 #include <sys/types.h>
455 #include <sys/socket.h>
456 #include <sys/uio.h>
457 ],[
458 {
459 msghdr msg;
460 iovec iov;
461 char buf [100];
462 char data = 0;
463
464 iov.iov_base = &data;
465 iov.iov_len = 1;
466
467 msg.msg_iov = &iov;
468 msg.msg_iovlen = 1;
469 msg.msg_control = buf;
470 msg.msg_controllen = sizeof buf;
471
472 cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
473 cmsg->cmsg_level = SOL_SOCKET;
474 cmsg->cmsg_type = SCM_RIGHTS;
475 cmsg->cmsg_len = 100;
476
477 *(int *)CMSG_DATA (cmsg) = 5;
478
479 return sendmsg (3, &msg, 0);
480 }
481 ],[can_pass_fds=yes],[can_pass_fds=no])])
482 if test x$can_pass_fds = xyes; then
483 AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing)
484 else
485 AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability])
486 fi
487 ])
488
489 AC_DEFUN([TTY_GROUP_CHECK],
490 [
491 AC_CACHE_CHECK([for tty group], tty_group,
492 [AC_TRY_RUN([
493 #include <sys/types.h>
494 #include <sys/stat.h>
495 #include <unistd.h>
496 #include <grp.h>
497
498 main()
499 {
500 struct stat st;
501 struct group *gr;
502 char *tty;
503 gr = getgrnam("tty");
504 tty = ttyname(0);
505 if (gr != 0
506 && tty != 0
507 && (stat(tty, &st)) == 0
508 && st.st_gid == gr->gr_gid)
509 return 0;
510 else
511 return 1;
512 }],
513 [tty_group=yes],[tty_group=no],[tty_group=no])])
514 if test x$tty_group = xyes; then
515 AC_DEFINE(TTY_GID_SUPPORT, 1, "")
516 fi])
517