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/cvs/libptytty/ptytty.m4
Revision: 1.15
Committed: Mon Nov 5 22:06:56 2007 UTC (16 years, 6 months ago) by ayin
Branch: MAIN
Changes since 1.14: +5 -9 lines
Log Message:
Remove duplicated checks.

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 updwtmp \
117 updwtmpx \
118 updlastlogx \
119 )
120
121 AC_CHECK_HEADERS(lastlog.h)
122
123 dnl# --------------------------------------------------------------------------
124 dnl# DO ALL UTMP AND WTMP CHECKING
125 dnl# --------------------------------------------------------------------------
126 dnl# check for host field in utmp structure
127
128 dnl# --------------------------------------------
129 AC_CHECK_HEADERS(utmp.h,
130 [AC_CACHE_CHECK([for struct utmp], struct_utmp,
131 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
132 #include <utmp.h>]], [[struct utmp ut;]])],[struct_utmp=yes],[struct_utmp=no])])
133 if test x$struct_utmp = xyes; then
134 AC_DEFINE(HAVE_STRUCT_UTMP, 1, Define if utmp.h has struct utmp)
135 fi
136 ]
137
138 AC_CACHE_CHECK(for ut_host in utmp struct, struct_utmp_host,
139 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
140 #include <utmp.h>]], [[struct utmp ut; ut.ut_host;]])],[struct_utmp_host=yes],[struct_utmp_host=no])])
141 if test x$struct_utmp_host = xyes; then
142 AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host)
143 fi
144
145 AC_CACHE_CHECK(for ut_pid in utmp struct, struct_utmp_pid,
146 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
147 #include <utmp.h>]], [[struct utmp ut; ut.ut_pid;]])],[struct_utmp_pid=yes],[struct_utmp_pid=no])])
148 if test x$struct_utmp_pid = xyes; then
149 AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid)
150 fi
151 ) dnl# AC_CHECK_HEADERS(utmp.h
152
153 dnl# --------------------------------------------
154
155 AC_CHECK_HEADERS(utmpx.h,
156 [AC_CACHE_CHECK([for struct utmpx], struct_utmpx,
157 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
158 #include <utmpx.h>]], [[struct utmpx ut;]])],[struct_utmpx=yes],[struct_utmpx=no])])
159 if test x$struct_utmpx = xyes; then
160 AC_DEFINE(HAVE_STRUCT_UTMPX, 1, Define if utmpx.h has struct utmpx)
161 fi
162 ]
163
164 AC_CACHE_CHECK(for host in utmpx struct, struct_utmpx_host,
165 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
166 #include <utmpx.h>]], [[struct utmpx utx; utx.ut_host;]])],[struct_utmpx_host=yes],[struct_utmpx_host=no])])
167 if test x$struct_utmpx_host = xyes; then
168 AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host)
169 fi
170
171 AC_CACHE_CHECK(for session in utmpx struct, struct_utmpx_session,
172 [AC_TRY_COMPILE([#include <sys/types.h>
173 #include <utmpx.h>],
174 [struct utmpx utx; utx.ut_session;],
175 struct_utmpx_session=yes, struct_utmpx_session=no)])
176 if test x$struct_utmpx_session = xyes; then
177 AC_DEFINE(HAVE_UTMPX_SESSION, 1, Define if struct utmpx contains ut_session)
178 fi
179 ) dnl# AC_CHECK_HEADERS(utmpx.h
180
181 dnl# --------------------------------------------------------------------------
182 dnl# check for struct lastlog
183 AC_CACHE_CHECK(for struct lastlog, struct_lastlog,
184 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
185 #include <utmp.h>
186 #ifdef HAVE_LASTLOG_H
187 #include <lastlog.h>
188 #endif
189 ]], [[struct lastlog ll;]])],[struct_lastlog=yes],[struct_lastlog=no])])
190 if test x$struct_lastlog = xyes; then
191 AC_DEFINE(HAVE_STRUCT_LASTLOG, 1, Define if utmp.h or lastlog.h has struct lastlog)
192 fi
193
194 dnl# check for struct lastlogx
195 AC_CACHE_CHECK(for struct lastlogx, struct_lastlogx,
196 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
197 #include <utmpx.h>
198 #ifdef HAVE_LASTLOG_H
199 #include <lastlog.h>
200 #endif
201 ]], [[struct lastlogx ll;]])],[struct_lastlogx=yes],[struct_lastlogx=no])])
202 if test x$struct_lastlogx = xyes; then
203 AC_DEFINE(HAVE_STRUCT_LASTLOGX, 1, Define if utmpx.h or lastlog.h has struct lastlogx)
204 fi
205
206 dnl# --------------------------------------------------------------------------
207 dnl# FIND FILES
208 dnl# --------------------------------------------------------------------------
209
210 dnl# find utmp
211 AC_CACHE_CHECK(where utmp is located, path_utmp,
212 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
213 #include <stdlib.h>
214 #include <sys/types.h>
215 #include <utmp.h>
216 #include <errno.h>
217 main()
218 {
219 char **u, *utmplist[] = {
220 "/var/run/utmp", "/var/adm/utmp", "/etc/utmp", "/usr/etc/utmp", "/usr/adm/utmp", NULL };
221 FILE *a, *f=fopen("conftestval", "w");
222 if (!f) exit(1);
223 #ifdef UTMP_FILE
224 fprintf(f, "%s\n", UTMP_FILE);
225 exit(0);
226 #endif
227 #ifdef _PATH_UTMP
228 fprintf(f, "%s\n", _PATH_UTMP);
229 exit(0);
230 #endif
231 for (u = utmplist; *u; u++) {
232 if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
233 fprintf(f, "%s\n", *u);
234 exit(0);
235 }
236 }
237 exit(0);
238 }]])],[path_utmp=`cat conftestval`],[path_utmp=],[dnl
239 AC_MSG_WARN(Define UTMP_FILE in config.h manually)])])
240 if test x$path_utmp != x; then
241 AC_DEFINE_UNQUOTED(UTMP_FILE, "$path_utmp", Define location of utmp)
242 fi
243
244 dnl# --------------------------------------------------------------------------
245
246 dnl# find utmpx - if a utmp file exists at the same location and is more than
247 dnl# a day newer, then dump the utmpx. People leave lots of junk around.
248 AC_CACHE_CHECK(where utmpx is located, path_utmpx,
249 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
250 #include <stdlib.h>
251 #include <sys/types.h>
252 #include <utmpx.h>
253 #include <errno.h>
254 #include <sys/stat.h>
255 #ifdef HAVE_STRING_H
256 #include <string.h>
257 #endif
258 main()
259 {
260 char **u, *p, *utmplist[] = {
261 #ifdef UTMPX_FILE
262 UTMPX_FILE,
263 #endif
264 #ifdef _PATH_UTMPX
265 _PATH_UTMPX,
266 #endif
267 "/var/adm/utmpx", "/etc/utmpx", NULL };
268 FILE *a, *f=fopen("conftestval", "w");
269 struct stat statu, statux;
270 if (!f) exit(1);
271 for (u = utmplist; *u; u++) {
272 if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
273 if (stat(*u, &statux) < 0)
274 continue;
275 p = strdup(*u);
276 p[strlen(p) - 1] = '\0';
277 if (stat(p, &statu) >= 0
278 && (statu.st_mtime - statux.st_mtime > 86400))
279 continue;
280 fprintf(f, "%s\n", *u);
281 exit(0);
282 }
283 }
284 exit(0);
285 }]])],[path_utmpx=`cat conftestval`],[path_utmpx=],[dnl
286 AC_MSG_WARN(Define UTMPX_FILE in config.h manually)])])
287 if test x$path_utmpx != x; then
288 AC_DEFINE_UNQUOTED(UTMPX_FILE, "$path_utmpx", Define location of utmpx)
289 fi
290
291 dnl# --------------------------------------------------------------------------
292
293 dnl# find wtmp
294 AC_CACHE_CHECK(where wtmp is located, path_wtmp,
295 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
296 #include <stdlib.h>
297 #include <sys/types.h>
298 #ifdef HAVE_UTMP_H
299 #include <utmp.h>
300 #endif
301 #include <errno.h>
302 main()
303 {
304 char **w, *wtmplist[] = {
305 "/var/log/wtmp", "/var/adm/wtmp", "/etc/wtmp", "/usr/etc/wtmp", "/usr/adm/wtmp", NULL };
306 FILE *a, *f=fopen("conftestval", "w");
307 if (!f) exit(1);
308 #ifdef WTMP_FILE
309 fprintf(f, "%s\n", WTMP_FILE);
310 exit(0);
311 #endif
312 #ifdef _PATH_WTMP
313 fprintf(f, "%s\n", _PATH_WTMP);
314 exit(0);
315 #endif
316 for (w = wtmplist; *w; w++) {
317 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
318 fprintf(f, "%s\n", *w);
319 exit(0);
320 }
321 }
322 exit(0);
323 }]])],[path_wtmp=`cat conftestval`],[path_wtmp=],[dnl
324 AC_MSG_WARN(Define WTMP_FILE in config.h manually)])])
325 if test x$path_wtmp != x; then
326 AC_DEFINE_UNQUOTED(WTMP_FILE, "$path_wtmp", Define location of wtmp)
327 fi
328 dnl# --------------------------------------------------------------------------
329
330 dnl# find wtmpx
331 AC_CACHE_CHECK(where wtmpx is located, path_wtmpx,
332 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
333 #include <stdlib.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 <stdlib.h>
370 #include <sys/types.h>
371 #ifdef HAVE_UTMPX_H
372 #include <utmpx.h>
373 #elif defined(HAVE_UTMP_H)
374 #include <utmp.h>
375 #endif
376 #ifdef HAVE_LASTLOG_H
377 #include <lastlog.h>
378 #endif
379 #include <errno.h>
380 main()
381 {
382 char **w, *lastloglist[] = { "/var/log/lastlog", NULL };
383 FILE *a, *f=fopen("conftestval", "w");
384 if (!f) exit(1);
385 #ifdef LASTLOG_FILE
386 fprintf(f, "%s\n", LASTLOG_FILE);
387 exit(0);
388 #endif
389 #ifdef _PATH_LASTLOG
390 fprintf(f, "%s\n", _PATH_LASTLOG);
391 exit(0);
392 #endif
393 for (w = lastloglist; *w; w++) {
394 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
395 fprintf(f, "%s\n", *w);
396 exit(0);
397 }
398 }
399 exit(0);
400 }]])],[path_lastlog=`cat conftestval`],[path_lastlog=],[dnl
401 AC_MSG_WARN(Define LASTLOG_FILE in config.h manually)])])
402 if test x$path_lastlog != x; then
403 AC_DEFINE_UNQUOTED(LASTLOG_FILE, "$path_lastlog", Define location of lastlog)
404 fi
405 dnl# --------------------------------------------------------------------------
406
407 dnl# find lastlogx
408 AC_CACHE_CHECK(where lastlogx is located, path_lastlogx,
409 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
410 #include <stdlib.h>
411 #ifdef HAVE_UTMPX_H
412 #include <utmpx.h>
413 #endif
414 #include <errno.h>
415 main()
416 {
417 char **w, *wtmplist[] = { "/var/log/lastlogx", "/var/adm/lastlogx", NULL };
418 FILE *a, *f=fopen("conftestval", "w");
419 if (!f) exit(1);
420 #ifdef LASTLOGX_FILE
421 fprintf(f, "%s\n", LASTLOGX_FILE);
422 exit(0);
423 #endif
424 #ifdef _PATH_LASTLOGX
425 fprintf(f, "%s\n", _PATH_LASTLOGX);
426 exit(0);
427 #endif
428 for (w = wtmplist; *w; w++) {
429 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
430 fprintf(f, "%s\n", *w);
431 exit(0);
432 }
433 }
434 exit(0);
435 }]])],[path_lastlogx=`cat conftestval`],[path_lastlogx=],[dnl
436 AC_MSG_WARN(Define LASTLOGX_FILE in config.h manually)])])
437 if test x$path_lastlogx != x; then
438 AC_DEFINE_UNQUOTED(LASTLOGX_FILE, "$path_lastlogx", Define location of lastlogx)
439 fi
440 ])
441
442 AC_DEFUN([SCM_RIGHTS_CHECK],
443 [
444 AC_CACHE_CHECK(for unix-compliant filehandle passing ability, can_pass_fds,
445 [AC_TRY_LINK([
446 #include <cstddef> // broken bsds (is that redundant?) need this
447 #include <sys/types.h>
448 #include <sys/socket.h>
449 #include <sys/uio.h>
450 ],[
451 {
452 msghdr msg;
453 iovec iov;
454 char buf [100];
455 char data = 0;
456
457 iov.iov_base = &data;
458 iov.iov_len = 1;
459
460 msg.msg_iov = &iov;
461 msg.msg_iovlen = 1;
462 msg.msg_control = buf;
463 msg.msg_controllen = sizeof buf;
464
465 cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
466 cmsg->cmsg_level = SOL_SOCKET;
467 cmsg->cmsg_type = SCM_RIGHTS;
468 cmsg->cmsg_len = 100;
469
470 *(int *)CMSG_DATA (cmsg) = 5;
471
472 return sendmsg (3, &msg, 0);
473 }
474 ],[can_pass_fds=yes],[can_pass_fds=no])])
475 if test x$can_pass_fds = xyes; then
476 AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing)
477 else
478 AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability])
479 fi
480 ])
481
482 AC_DEFUN([TTY_GROUP_CHECK],
483 [
484 AC_CACHE_CHECK([for tty group], tty_group,
485 [AC_TRY_RUN([
486 #include <sys/types.h>
487 #include <sys/stat.h>
488 #include <unistd.h>
489 #include <grp.h>
490
491 main()
492 {
493 struct stat st;
494 struct group *gr;
495 char *tty;
496 gr = getgrnam("tty");
497 tty = ttyname(0);
498 if (gr != 0
499 && tty != 0
500 && (stat(tty, &st)) == 0
501 && st.st_gid == gr->gr_gid)
502 return 0;
503 else
504 return 1;
505 }],
506 [tty_group=yes],[tty_group=no],[tty_group=no])])
507 if test x$tty_group = xyes; then
508 AC_DEFINE(TTY_GID_SUPPORT, 1, "")
509 fi])
510