ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libptytty/ptytty.m4
Revision: 1.3
Committed: Sun Jan 22 16:57:03 2006 UTC (18 years, 4 months ago) by ayin
Branch: MAIN
Changes since 1.2: +30 -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_CHECK_FUNCS( \
80 ttyslot \
81 updwtmp \
82 updwtmpx \
83 )
84
85 AC_CHECK_HEADERS( \
86 utmp.h \
87 utmpx.h \
88 lastlog.h \
89 )
90
91 dnl# --------------------------------------------------------------------------
92 dnl# DO ALL UTMP AND WTMP CHECKING
93 dnl# --------------------------------------------------------------------------
94 dnl# check for host field in utmp structure
95
96 dnl# --------------------------------------------
97 AC_CHECK_HEADER(utmp.h,
98 [AC_CACHE_CHECK([for struct utmp], struct_utmp,
99 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
100 #include <utmp.h>]], [[struct utmp ut;]])],[struct_utmp=yes],[struct_utmp=no])])
101 if test x$struct_utmp = xyes; then
102 AC_DEFINE(HAVE_STRUCT_UTMP, 1, Define if utmp.h has struct utmp)
103 fi
104 ]
105
106 AC_CACHE_CHECK(for ut_host in utmp struct, struct_utmp_host,
107 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
108 #include <utmp.h>]], [[struct utmp ut; ut.ut_host;]])],[struct_utmp_host=yes],[struct_utmp_host=no])])
109 if test x$struct_utmp_host = xyes; then
110 AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host)
111 fi
112
113 AC_CACHE_CHECK(for ut_pid in utmp struct, struct_utmp_pid,
114 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
115 #include <utmp.h>]], [[struct utmp ut; ut.ut_pid;]])],[struct_utmp_pid=yes],[struct_utmp_pid=no])])
116 if test x$struct_utmp_pid = xyes; then
117 AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid)
118 fi
119 ) dnl# AC_CHECK_HEADER(utmp.h
120
121 dnl# --------------------------------------------
122
123 AC_CHECK_HEADER(utmpx.h,
124 [AC_CACHE_CHECK([for struct utmpx], struct_utmpx,
125 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
126 #include <utmpx.h>]], [[struct utmpx ut;]])],[struct_utmpx=yes],[struct_utmpx=no])])
127 if test x$struct_utmpx = xyes; then
128 AC_DEFINE(HAVE_STRUCT_UTMPX, 1, Define if utmpx.h has struct utmpx)
129 fi
130 ]
131
132 AC_CACHE_CHECK(for host in utmpx struct, struct_utmpx_host,
133 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
134 #include <utmpx.h>]], [[struct utmpx utx; utx.ut_host;]])],[struct_utmpx_host=yes],[struct_utmpx_host=no])])
135 if test x$struct_utmpx_host = xyes; then
136 AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host)
137 fi
138
139 AC_CACHE_CHECK(for session in utmpx struct, struct_utmpx_session,
140 [AC_TRY_COMPILE([#include <sys/types.h>
141 #include <utmpx.h>],
142 [struct utmpx utx; utx.ut_session;],
143 struct_utmpx_session=yes, struct_utmpx_session=no)])
144 if test x$struct_utmpx_session = xyes; then
145 AC_DEFINE(HAVE_UTMPX_SESSION, 1, Define if struct utmpx contains ut_session)
146 fi
147 ) dnl# AC_CHECK_HEADER(utmpx.h
148
149 dnl# --------------------------------------------------------------------------
150 dnl# check for struct lastlog
151 AC_CACHE_CHECK(for struct lastlog, struct_lastlog,
152 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
153 #include <utmp.h>
154 #ifdef HAVE_LASTLOG_H
155 #include <lastlog.h>
156 #endif
157 ]], [[struct lastlog ll;]])],[struct_lastlog=yes],[struct_lastlog=no])])
158 if test x$struct_lastlog = xyes; then
159 AC_DEFINE(HAVE_STRUCT_LASTLOG, 1, Define if utmp.h or lastlog.h has struct lastlog)
160 fi
161
162 dnl# check for struct lastlogx
163 AC_CACHE_CHECK(for struct lastlogx, struct_lastlogx,
164 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
165 #include <utmpx.h>
166 #ifdef HAVE_LASTLOG_H
167 #include <lastlog.h>
168 #endif
169 ]], [[struct lastlogx ll;]])],[struct_lastlogx=yes],[struct_lastlogx=no])])
170 if test x$struct_lastlogx = xyes; then
171 AC_DEFINE(HAVE_STRUCT_LASTLOGX, 1, Define if utmpx.h or lastlog.h has struct lastlogx)
172 fi
173
174 dnl# --------------------------------------------------------------------------
175 dnl# FIND FILES
176 dnl# --------------------------------------------------------------------------
177
178 dnl# find utmp
179 AC_CACHE_CHECK(where utmp is located, path_utmp,
180 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
181 #include <sys/types.h>
182 #include <utmp.h>
183 #include <errno.h>
184 main()
185 {
186 char **u, *utmplist[] = {
187 "/var/run/utmp", "/var/adm/utmp", "/etc/utmp", "/usr/etc/utmp", "/usr/adm/utmp", NULL };
188 FILE *a, *f=fopen("conftestval", "w");
189 if (!f) exit(1);
190 #ifdef UTMP_FILE
191 fprintf(f, "%s\n", UTMP_FILE);
192 exit(0);
193 #endif
194 #ifdef _PATH_UTMP
195 fprintf(f, "%s\n", _PATH_UTMP);
196 exit(0);
197 #endif
198 for (u = utmplist; *u; u++) {
199 if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
200 fprintf(f, "%s\n", *u);
201 exit(0);
202 }
203 }
204 exit(0);
205 }]])],[path_utmp=`cat conftestval`],[path_utmp=],[dnl
206 AC_MSG_WARN(Define UTMP_FILE in config.h manually)])])
207 if test x$path_utmp != x; then
208 AC_DEFINE_UNQUOTED(UTMP_FILE, "$path_utmp", Define location of utmp)
209 fi
210
211 dnl# --------------------------------------------------------------------------
212
213 dnl# find utmpx - if a utmp file exists at the same location and is more than
214 dnl# a day newer, then dump the utmpx. People leave lots of junk around.
215 AC_CACHE_CHECK(where utmpx is located, path_utmpx,
216 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
217 #include <sys/types.h>
218 #include <utmpx.h>
219 #include <errno.h>
220 #include <sys/stat.h>
221 #ifdef HAVE_STRING_H
222 #include <string.h>
223 #endif
224 main()
225 {
226 char **u, *p, *utmplist[] = {
227 #ifdef UTMPX_FILE
228 UTMPX_FILE,
229 #endif
230 #ifdef _PATH_UTMPX
231 _PATH_UTMPX,
232 #endif
233 "/var/adm/utmpx", "/etc/utmpx", NULL };
234 FILE *a, *f=fopen("conftestval", "w");
235 struct stat statu, statux;
236 if (!f) exit(1);
237 for (u = utmplist; *u; u++) {
238 if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
239 if (stat(*u, &statux) < 0)
240 continue;
241 p = strdup(*u);
242 p[strlen(p) - 1] = '\0';
243 if (stat(p, &statu) >= 0
244 && (statu.st_mtime - statux.st_mtime > 86400))
245 continue;
246 fprintf(f, "%s\n", *u);
247 exit(0);
248 }
249 }
250 exit(0);
251 }]])],[path_utmpx=`cat conftestval`],[path_utmpx=],[dnl
252 AC_MSG_WARN(Define UTMPX_FILE in config.h manually)])])
253 if test x$path_utmpx != x; then
254 AC_DEFINE_UNQUOTED(UTMPX_FILE, "$path_utmpx", Define location of utmpx)
255 fi
256
257 dnl# --------------------------------------------------------------------------
258
259 dnl# find wtmp
260 AC_CACHE_CHECK(where wtmp is located, path_wtmp,
261 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
262 #include <sys/types.h>
263 #ifdef HAVE_UTMP_H
264 #include <utmp.h>
265 #endif
266 #include <errno.h>
267 main()
268 {
269 char **w, *wtmplist[] = {
270 "/var/log/wtmp", "/var/adm/wtmp", "/etc/wtmp", "/usr/etc/wtmp", "/usr/adm/wtmp", NULL };
271 FILE *a, *f=fopen("conftestval", "w");
272 if (!f) exit(1);
273 #ifdef WTMP_FILE
274 fprintf(f, "%s\n", WTMP_FILE);
275 exit(0);
276 #endif
277 #ifdef _PATH_WTMP
278 fprintf(f, "%s\n", _PATH_WTMP);
279 exit(0);
280 #endif
281 for (w = wtmplist; *w; w++) {
282 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
283 fprintf(f, "%s\n", *w);
284 exit(0);
285 }
286 }
287 exit(0);
288 }]])],[path_wtmp=`cat conftestval`],[path_wtmp=],[dnl
289 AC_MSG_WARN(Define WTMP_FILE in config.h manually)])])
290 if test x$path_wtmp != x; then
291 AC_DEFINE_UNQUOTED(WTMP_FILE, "$path_wtmp", Define location of wtmp)
292 fi
293 dnl# --------------------------------------------------------------------------
294
295 dnl# find wtmpx
296 AC_CACHE_CHECK(where wtmpx is located, path_wtmpx,
297 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
298 #ifdef HAVE_UTMPX_H
299 #include <utmpx.h>
300 #endif
301 #include <errno.h>
302 main()
303 {
304 char **w, *wtmplist[] = {
305 "/var/log/wtmpx", "/var/adm/wtmpx", NULL };
306 FILE *a, *f=fopen("conftestval", "w");
307 if (!f) exit(1);
308 #ifdef WTMPX_FILE
309 fprintf(f, "%s\n", WTMPX_FILE);
310 exit(0);
311 #endif
312 #ifdef _PATH_WTMPX
313 fprintf(f, "%s\n", _PATH_WTMPX);
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_wtmpx=`cat conftestval`],[path_wtmpx=],[dnl
324 AC_MSG_WARN(Define WTMPX_FILE in config.h manually)])])
325 if test x$path_wtmpx != x; then
326 AC_DEFINE_UNQUOTED(WTMPX_FILE, "$path_wtmpx", Define location of wtmpx)
327 fi
328 dnl# --------------------------------------------------------------------------
329
330 dnl# find lastlog
331 AC_CACHE_CHECK(where lastlog is located, path_lastlog,
332 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
333 #include <sys/types.h>
334 #ifdef HAVE_UTMPX_H
335 #include <utmpx.h>
336 #elif defined(HAVE_UTMP_H)
337 #include <utmp.h>
338 #endif
339 #ifdef HAVE_LASTLOG_H
340 #include <lastlog.h>
341 #endif
342 #include <errno.h>
343 main()
344 {
345 char **w, *lastloglist[] = { "/var/log/lastlog", NULL };
346 FILE *a, *f=fopen("conftestval", "w");
347 if (!f) exit(1);
348 #ifdef LASTLOG_FILE
349 fprintf(f, "%s\n", LASTLOG_FILE);
350 exit(0);
351 #endif
352 #ifdef _PATH_LASTLOG
353 fprintf(f, "%s\n", _PATH_LASTLOG);
354 exit(0);
355 #endif
356 for (w = lastloglist; *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_lastlog=`cat conftestval`],[path_lastlog=],[dnl
364 AC_MSG_WARN(Define LASTLOG_FILE in config.h manually)])])
365 if test x$path_lastlog != x; then
366 AC_DEFINE_UNQUOTED(LASTLOG_FILE, "$path_lastlog", Define location of lastlog)
367 if test -d "$path_lastlog"; then
368 AC_DEFINE(LASTLOG_IS_DIR, 1, Define if lastlog is provided via a directory)
369 fi
370 fi
371 dnl# --------------------------------------------------------------------------
372
373 dnl# find lastlogx
374 AC_CACHE_CHECK(where lastlogx is located, path_lastlogx,
375 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
376 #ifdef HAVE_UTMPX_H
377 #include <utmpx.h>
378 #endif
379 #include <errno.h>
380 main()
381 {
382 char **w, *wtmplist[] = { "/var/log/lastlogx", "/var/adm/lastlogx", NULL };
383 FILE *a, *f=fopen("conftestval", "w");
384 if (!f) exit(1);
385 #ifdef LASTLOGX_FILE
386 fprintf(f, "%s\n", LASTLOGX_FILE);
387 exit(0);
388 #endif
389 #ifdef _PATH_LASTLOGX
390 fprintf(f, "%s\n", _PATH_LASTLOGX);
391 exit(0);
392 #endif
393 for (w = wtmplist; *w; w++) {
394 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
395 fprintf(f, "%s\n", *w);
396 exit(0);
397 }
398 }
399 exit(0);
400 }]])],[path_lastlogx=`cat conftestval`],[path_lastlogx=],[dnl
401 AC_MSG_WARN(Define LASTLOGX_FILE in config.h manually)])])
402 if test x$path_lastlogx != x; then
403 AC_DEFINE_UNQUOTED(LASTLOGX_FILE, "$path_lastlogx", Define location of lastlogx)
404 fi
405 ])
406
407 AC_DEFUN([SCM_RIGHTS_CHECK],
408 [
409 AC_CACHE_CHECK(for unix-compliant filehandle passing ability, can_pass_fds,
410 [AC_TRY_LINK([
411 #include <cstddef> // broken bsds (is that redundant) need this
412 #include <sys/types.h>
413 #include <sys/socket.h>
414 #include <sys/uio.h>
415 ],[
416 {
417 msghdr msg;
418 iovec iov;
419 char buf [100];
420 char data = 0;
421
422 iov.iov_base = &data;
423 iov.iov_len = 1;
424
425 msg.msg_iov = &iov;
426 msg.msg_iovlen = 1;
427 msg.msg_control = buf;
428 msg.msg_controllen = sizeof buf;
429
430 cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
431 cmsg->cmsg_level = SOL_SOCKET;
432 cmsg->cmsg_type = SCM_RIGHTS;
433 cmsg->cmsg_len = 100;
434
435 *(int *)CMSG_DATA (cmsg) = 5;
436
437 return sendmsg (3, &msg, 0);
438 }
439 ],[can_pass_fds=yes],[can_pass_fds=no])])
440 if test x$can_pass_fds = xyes; then
441 AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing)
442 else
443 AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability])
444 fi
445 ])
446
447 AC_DEFUN([TTY_GROUP_CHECK],
448 [
449 AC_CACHE_CHECK([for tty group], tty_group,
450 [AC_TRY_RUN([
451 #include <sys/types.h>
452 #include <sys/stat.h>
453 #include <unistd.h>
454 #include <grp.h>
455
456 main()
457 {
458 struct stat st;
459 struct group *gr;
460 char *tty;
461 gr = getgrnam("tty");
462 tty = ttyname(0);
463 if (gr != 0
464 && tty != 0
465 && (stat(tty, &st)) == 0
466 && st.st_gid == gr->gr_gid)
467 return 0;
468 else
469 return 1;
470 }],
471 [tty_group=yes],[tty_group=no],[tty_group=no])])
472 if test x$tty_group = xyes; then
473 AC_DEFINE(TTY_GID_SUPPORT, 1, "")
474 fi])
475