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/cvs/libptytty/ptytty.m4
Revision: 1.1
Committed: Sat Jan 21 23:11:04 2006 UTC (18 years, 4 months ago) by ayin
Branch: MAIN
Log Message:
*** empty log message ***

File Contents

# Content
1 AC_DEFUN([PTY_CHECK],
2 [
3 AC_CHECK_HEADERS( \
4 pty.h \
5 util.h \
6 libutil.h \
7 sys/ioctl.h \
8 sys/stropts.h \
9 )
10
11 AC_CHECK_FUNCS( \
12 revoke \
13 _getpty \
14 getpt \
15 posix_openpt \
16 isastream \
17 )
18
19 have_clone=no
20
21 AC_MSG_CHECKING(for /dev/ptym/clone)
22 if test -e /dev/ptym/clone; then
23 AC_MSG_RESULT(yes)
24 AC_DEFINE(HAVE_DEV_CLONE, 1, [Define to 1 if you have /dev/ptym/clone])
25 AC_DEFINE(CLONE_DEVICE, "/dev/ptym/clone", [clone device filename])
26 have_clone=yes
27 else
28 AC_MSG_RESULT(no)
29 fi
30
31 AC_MSG_CHECKING(for /dev/ptc)
32 if test -e /dev/ptc; then
33 AC_MSG_RESULT(yes)
34 AC_DEFINE(HAVE_DEV_PTC, 1, [Define to 1 if you have /dev/ptc])
35 AC_DEFINE(CLONE_DEVICE, "/dev/ptc", [clone device filename])
36 have_clone=yes
37 else
38 AC_MSG_RESULT(no)
39 fi
40
41 case $host in
42 *-*-cygwin*)
43 have_clone=yes
44 AC_DEFINE(CLONE_DEVICE, "/dev/ptmx", [clone device filename])
45 ;;
46 *)
47 AC_MSG_CHECKING(for /dev/ptmx)
48 if test -e /dev/ptmx; then
49 AC_MSG_RESULT(yes)
50 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if you have /dev/ptmx])
51 AC_DEFINE(CLONE_DEVICE, "/dev/ptmx", [clone device filename])
52 have_clone=yes
53 else
54 AC_MSG_RESULT(no)
55 fi
56 ;;
57 esac
58
59 if test x$ac_cv_func_getpt = xyes -o x$ac_cv_func_posix_openpt = xyes -o x$have_clone = xyes; then
60 AC_MSG_CHECKING(for UNIX98 ptys)
61 AC_TRY_LINK([#include <stdlib.h>],
62 [grantpt(0);unlockpt(0);ptsname(0);],
63 [unix98_pty=yes
64 AC_DEFINE(UNIX98_PTY, 1, "")
65 AC_MSG_RESULT(yes)],
66 [AC_MSG_RESULT(no)])
67 fi
68
69 if test -z "$unix98_pty"; then
70 AC_CHECK_FUNCS(openpty, [], [AC_CHECK_LIB(util, openpty, [AC_DEFINE(HAVE_OPENPTY) LIBS="$LIBS -lutil"])])
71 fi
72 ])
73
74 AC_DEFUN([UTMP_CHECK],
75 [
76 AC_CHECK_FUNCS( \
77 ttyslot \
78 updwtmp \
79 updwtmpx \
80 )
81
82 AC_CHECK_HEADERS( \
83 utmp.h \
84 utmpx.h \
85 lastlog.h \
86 )
87
88 dnl# --------------------------------------------------------------------------
89 dnl# DO ALL UTMP AND WTMP CHECKING
90 dnl# --------------------------------------------------------------------------
91 dnl# check for host field in utmp structure
92
93 dnl# --------------------------------------------
94 AC_CHECK_HEADER(utmp.h,
95 [AC_CACHE_CHECK([for struct utmp], struct_utmp,
96 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
97 #include <utmp.h>]], [[struct utmp ut;]])],[struct_utmp=yes],[struct_utmp=no])])
98 if test x$struct_utmp = xyes; then
99 AC_DEFINE(HAVE_STRUCT_UTMP, 1, Define if utmp.h has struct utmp)
100 fi
101 ]
102
103 AC_CACHE_CHECK(for ut_host in utmp struct, struct_utmp_host,
104 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
105 #include <utmp.h>]], [[struct utmp ut; ut.ut_host;]])],[struct_utmp_host=yes],[struct_utmp_host=no])])
106 if test x$struct_utmp_host = xyes; then
107 AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host)
108 fi
109
110 AC_CACHE_CHECK(for ut_pid in utmp struct, struct_utmp_pid,
111 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
112 #include <utmp.h>]], [[struct utmp ut; ut.ut_pid;]])],[struct_utmp_pid=yes],[struct_utmp_pid=no])])
113 if test x$struct_utmp_pid = xyes; then
114 AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid)
115 fi
116 ) dnl# AC_CHECK_HEADER(utmp.h
117
118 dnl# --------------------------------------------
119
120 AC_CHECK_HEADER(utmpx.h,
121 [AC_CACHE_CHECK([for struct utmpx], struct_utmpx,
122 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
123 #include <utmpx.h>]], [[struct utmpx ut;]])],[struct_utmpx=yes],[struct_utmpx=no])])
124 if test x$struct_utmpx = xyes; then
125 AC_DEFINE(HAVE_STRUCT_UTMPX, 1, Define if utmpx.h has struct utmpx)
126 fi
127 ]
128
129 AC_CACHE_CHECK(for host in utmpx struct, struct_utmpx_host,
130 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
131 #include <utmpx.h>]], [[struct utmpx utx; utx.ut_host;]])],[struct_utmpx_host=yes],[struct_utmpx_host=no])])
132 if test x$struct_utmpx_host = xyes; then
133 AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host)
134 fi
135
136 AC_CACHE_CHECK(for session in utmpx struct, struct_utmpx_session,
137 [AC_TRY_COMPILE([#include <sys/types.h>
138 #include <utmpx.h>],
139 [struct utmpx utx; utx.ut_session;],
140 struct_utmpx_session=yes, struct_utmpx_session=no)])
141 if test x$struct_utmpx_session = xyes; then
142 AC_DEFINE(HAVE_UTMPX_SESSION, 1, Define if struct utmpx contains ut_session)
143 fi
144 ) dnl# AC_CHECK_HEADER(utmpx.h
145
146 dnl# --------------------------------------------------------------------------
147 dnl# check for struct lastlog
148 AC_CACHE_CHECK(for struct lastlog, struct_lastlog,
149 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
150 #include <utmp.h>
151 #ifdef HAVE_LASTLOG_H
152 #include <lastlog.h>
153 #endif
154 ]], [[struct lastlog ll;]])],[struct_lastlog=yes],[struct_lastlog=no])])
155 if test x$struct_lastlog = xyes; then
156 AC_DEFINE(HAVE_STRUCT_LASTLOG, 1, Define if utmp.h or lastlog.h has struct lastlog)
157 fi
158
159 dnl# check for struct lastlogx
160 AC_CACHE_CHECK(for struct lastlogx, struct_lastlogx,
161 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
162 #include <utmpx.h>
163 #ifdef HAVE_LASTLOG_H
164 #include <lastlog.h>
165 #endif
166 ]], [[struct lastlogx ll;]])],[struct_lastlogx=yes],[struct_lastlogx=no])])
167 if test x$struct_lastlogx = xyes; then
168 AC_DEFINE(HAVE_STRUCT_LASTLOGX, 1, Define if utmpx.h or lastlog.h has struct lastlogx)
169 fi
170
171 dnl# --------------------------------------------------------------------------
172 dnl# FIND FILES
173 dnl# --------------------------------------------------------------------------
174
175 dnl# find utmp
176 AC_CACHE_CHECK(where utmp is located, path_utmp,
177 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
178 #include <sys/types.h>
179 #include <utmp.h>
180 #include <errno.h>
181 main()
182 {
183 char **u, *utmplist[] = {
184 "/var/run/utmp", "/var/adm/utmp", "/etc/utmp", "/usr/etc/utmp", "/usr/adm/utmp", NULL };
185 FILE *a, *f=fopen("conftestval", "w");
186 if (!f) exit(1);
187 #ifdef UTMP_FILE
188 fprintf(f, "%s\n", UTMP_FILE);
189 exit(0);
190 #endif
191 #ifdef _PATH_UTMP
192 fprintf(f, "%s\n", _PATH_UTMP);
193 exit(0);
194 #endif
195 for (u = utmplist; *u; u++) {
196 if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
197 fprintf(f, "%s\n", *u);
198 exit(0);
199 }
200 }
201 exit(0);
202 }]])],[path_utmp=`cat conftestval`],[path_utmp=],[dnl
203 AC_MSG_WARN(Define UTMP_FILE in config.h manually)])])
204 if test x$path_utmp != x; then
205 AC_DEFINE_UNQUOTED(UTMP_FILE, "$path_utmp", Define location of utmp)
206 fi
207
208 dnl# --------------------------------------------------------------------------
209
210 dnl# find utmpx - if a utmp file exists at the same location and is more than
211 dnl# a day newer, then dump the utmpx. People leave lots of junk around.
212 AC_CACHE_CHECK(where utmpx is located, path_utmpx,
213 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
214 #include <sys/types.h>
215 #include <utmpx.h>
216 #include <errno.h>
217 #include <sys/stat.h>
218 #ifdef HAVE_STRING_H
219 #include <string.h>
220 #endif
221 main()
222 {
223 char **u, *p, *utmplist[] = {
224 #ifdef UTMPX_FILE
225 UTMPX_FILE,
226 #endif
227 #ifdef _PATH_UTMPX
228 _PATH_UTMPX,
229 #endif
230 "/var/adm/utmpx", "/etc/utmpx", NULL };
231 FILE *a, *f=fopen("conftestval", "w");
232 struct stat statu, statux;
233 if (!f) exit(1);
234 for (u = utmplist; *u; u++) {
235 if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
236 if (stat(*u, &statux) < 0)
237 continue;
238 p = strdup(*u);
239 p[strlen(p) - 1] = '\0';
240 if (stat(p, &statu) >= 0
241 && (statu.st_mtime - statux.st_mtime > 86400))
242 continue;
243 fprintf(f, "%s\n", *u);
244 exit(0);
245 }
246 }
247 exit(0);
248 }]])],[path_utmpx=`cat conftestval`],[path_utmpx=],[dnl
249 AC_MSG_WARN(Define UTMPX_FILE in config.h manually)])])
250 if test x$path_utmpx != x; then
251 AC_DEFINE_UNQUOTED(UTMPX_FILE, "$path_utmpx", Define location of utmpx)
252 fi
253
254 dnl# --------------------------------------------------------------------------
255
256 dnl# find wtmp
257 AC_CACHE_CHECK(where wtmp is located, path_wtmp,
258 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
259 #include <sys/types.h>
260 #ifdef HAVE_UTMP_H
261 #include <utmp.h>
262 #endif
263 #include <errno.h>
264 main()
265 {
266 char **w, *wtmplist[] = {
267 "/var/log/wtmp", "/var/adm/wtmp", "/etc/wtmp", "/usr/etc/wtmp", "/usr/adm/wtmp", NULL };
268 FILE *a, *f=fopen("conftestval", "w");
269 if (!f) exit(1);
270 #ifdef WTMP_FILE
271 fprintf(f, "%s\n", WTMP_FILE);
272 exit(0);
273 #endif
274 #ifdef _PATH_WTMP
275 fprintf(f, "%s\n", _PATH_WTMP);
276 exit(0);
277 #endif
278 for (w = wtmplist; *w; w++) {
279 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
280 fprintf(f, "%s\n", *w);
281 exit(0);
282 }
283 }
284 exit(0);
285 }]])],[path_wtmp=`cat conftestval`],[path_wtmp=],[dnl
286 AC_MSG_WARN(Define WTMP_FILE in config.h manually)])])
287 if test x$path_wtmp != x; then
288 AC_DEFINE_UNQUOTED(WTMP_FILE, "$path_wtmp", Define location of wtmp)
289 fi
290 dnl# --------------------------------------------------------------------------
291
292 dnl# find wtmpx
293 AC_CACHE_CHECK(where wtmpx is located, path_wtmpx,
294 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
295 #ifdef HAVE_UTMPX_H
296 #include <utmpx.h>
297 #endif
298 #include <errno.h>
299 main()
300 {
301 char **w, *wtmplist[] = {
302 "/var/log/wtmpx", "/var/adm/wtmpx", NULL };
303 FILE *a, *f=fopen("conftestval", "w");
304 if (!f) exit(1);
305 #ifdef WTMPX_FILE
306 fprintf(f, "%s\n", WTMPX_FILE);
307 exit(0);
308 #endif
309 #ifdef _PATH_WTMPX
310 fprintf(f, "%s\n", _PATH_WTMPX);
311 exit(0);
312 #endif
313 for (w = wtmplist; *w; w++) {
314 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
315 fprintf(f, "%s\n", *w);
316 exit(0);
317 }
318 }
319 exit(0);
320 }]])],[path_wtmpx=`cat conftestval`],[path_wtmpx=],[dnl
321 AC_MSG_WARN(Define WTMPX_FILE in config.h manually)])])
322 if test x$path_wtmpx != x; then
323 AC_DEFINE_UNQUOTED(WTMPX_FILE, "$path_wtmpx", Define location of wtmpx)
324 fi
325 dnl# --------------------------------------------------------------------------
326
327 dnl# find lastlog
328 AC_CACHE_CHECK(where lastlog is located, path_lastlog,
329 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
330 #include <sys/types.h>
331 #ifdef HAVE_UTMPX_H
332 #include <utmpx.h>
333 #elif defined(HAVE_UTMP_H)
334 #include <utmp.h>
335 #endif
336 #ifdef HAVE_LASTLOG_H
337 #include <lastlog.h>
338 #endif
339 #include <errno.h>
340 main()
341 {
342 char **w, *lastloglist[] = { "/var/log/lastlog", NULL };
343 FILE *a, *f=fopen("conftestval", "w");
344 if (!f) exit(1);
345 #ifdef LASTLOG_FILE
346 fprintf(f, "%s\n", LASTLOG_FILE);
347 exit(0);
348 #endif
349 #ifdef _PATH_LASTLOG
350 fprintf(f, "%s\n", _PATH_LASTLOG);
351 exit(0);
352 #endif
353 for (w = lastloglist; *w; w++) {
354 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
355 fprintf(f, "%s\n", *w);
356 exit(0);
357 }
358 }
359 exit(0);
360 }]])],[path_lastlog=`cat conftestval`],[path_lastlog=],[dnl
361 AC_MSG_WARN(Define LASTLOG_FILE in config.h manually)])])
362 if test x$path_lastlog != x; then
363 AC_DEFINE_UNQUOTED(LASTLOG_FILE, "$path_lastlog", Define location of lastlog)
364 if test -d "$path_lastlog"; then
365 AC_DEFINE(LASTLOG_IS_DIR, 1, Define if lastlog is provided via a directory)
366 fi
367 fi
368 dnl# --------------------------------------------------------------------------
369
370 dnl# find lastlogx
371 AC_CACHE_CHECK(where lastlogx is located, path_lastlogx,
372 [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
373 #ifdef HAVE_UTMPX_H
374 #include <utmpx.h>
375 #endif
376 #include <errno.h>
377 main()
378 {
379 char **w, *wtmplist[] = { "/var/log/lastlogx", "/var/adm/lastlogx", NULL };
380 FILE *a, *f=fopen("conftestval", "w");
381 if (!f) exit(1);
382 #ifdef LASTLOGX_FILE
383 fprintf(f, "%s\n", LASTLOGX_FILE);
384 exit(0);
385 #endif
386 #ifdef _PATH_LASTLOGX
387 fprintf(f, "%s\n", _PATH_LASTLOGX);
388 exit(0);
389 #endif
390 for (w = wtmplist; *w; w++) {
391 if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
392 fprintf(f, "%s\n", *w);
393 exit(0);
394 }
395 }
396 exit(0);
397 }]])],[path_lastlogx=`cat conftestval`],[path_lastlogx=],[dnl
398 AC_MSG_WARN(Define LASTLOGX_FILE in config.h manually)])])
399 if test x$path_lastlogx != x; then
400 AC_DEFINE_UNQUOTED(LASTLOGX_FILE, "$path_lastlogx", Define location of lastlogx)
401 fi
402 ])
403
404 AC_DEFUN([SCM_RIGHTS_CHECK],
405 [
406 AC_CACHE_CHECK(for unix-compliant filehandle passing ability, can_pass_fds,
407 [AC_TRY_LINK([
408 #include <cstddef> // broken bsds (is that redundant) need this
409 #include <sys/types.h>
410 #include <sys/socket.h>
411 #include <sys/uio.h>
412 ],[
413 {
414 msghdr msg;
415 iovec iov;
416 char buf [100];
417 char data = 0;
418
419 iov.iov_base = &data;
420 iov.iov_len = 1;
421
422 msg.msg_iov = &iov;
423 msg.msg_iovlen = 1;
424 msg.msg_control = buf;
425 msg.msg_controllen = sizeof buf;
426
427 cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
428 cmsg->cmsg_level = SOL_SOCKET;
429 cmsg->cmsg_type = SCM_RIGHTS;
430 cmsg->cmsg_len = 100;
431
432 *(int *)CMSG_DATA (cmsg) = 5;
433
434 return sendmsg (3, &msg, 0);
435 }
436 ],[can_pass_fds=yes],[can_pass_fds=no])])
437 if test x$can_pass_fds = xyes; then
438 AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing)
439 else
440 AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability])
441 fi
442 ])