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/cvs/rxvt-unicode/ptytty.m4
Revision: 1.13
Committed: Wed Feb 17 10:24:06 2010 UTC (14 years, 3 months ago) by sf-exg
Branch: MAIN
Changes since 1.12: +54 -54 lines
Log Message:
libptytty sync

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