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], struct_utmp, |
132 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
133 |
#include <utmp.h>]], [[struct utmp ut;]])],[struct_utmp=yes],[struct_utmp=no])]) |
134 |
if test x$struct_utmp = xyes; then |
135 |
AC_DEFINE(HAVE_STRUCT_UTMP, 1, Define if utmp.h has struct utmp) |
136 |
fi |
137 |
] |
138 |
|
139 |
AC_CACHE_CHECK(for ut_host in utmp struct, struct_utmp_host, |
140 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
141 |
#include <utmp.h>]], [[struct utmp ut; ut.ut_host;]])],[struct_utmp_host=yes],[struct_utmp_host=no])]) |
142 |
if test x$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, struct_utmp_pid, |
147 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
148 |
#include <utmp.h>]], [[struct utmp ut; ut.ut_pid;]])],[struct_utmp_pid=yes],[struct_utmp_pid=no])]) |
149 |
if test x$struct_utmp_pid = xyes; then |
150 |
AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid) |
151 |
fi |
152 |
) dnl# AC_CHECK_HEADERS(utmp.h |
153 |
|
154 |
dnl# -------------------------------------------- |
155 |
|
156 |
AC_CHECK_HEADERS(utmpx.h, |
157 |
[AC_CACHE_CHECK([for struct utmpx], struct_utmpx, |
158 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
159 |
#include <utmpx.h>]], [[struct utmpx ut;]])],[struct_utmpx=yes],[struct_utmpx=no])]) |
160 |
if test x$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, struct_utmpx_host, |
166 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
167 |
#include <utmpx.h>]], [[struct utmpx utx; utx.ut_host;]])],[struct_utmpx_host=yes],[struct_utmpx_host=no])]) |
168 |
if test x$struct_utmpx_host = xyes; then |
169 |
AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host) |
170 |
fi |
171 |
|
172 |
AC_CACHE_CHECK(for session in utmpx struct, struct_utmpx_session, |
173 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
174 |
#include <utmpx.h>]], [[struct utmpx utx; utx.ut_session;]])],[struct_utmpx_session=yes],[struct_utmpx_session=no])]) |
175 |
if test x$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, 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;]])],[struct_lastlog=yes],[struct_lastlog=no])]) |
189 |
if test x$struct_lastlog = xyes; then |
190 |
AC_DEFINE(HAVE_STRUCT_LASTLOG, 1, Define if utmp.h or lastlog.h has struct lastlog) |
191 |
fi |
192 |
|
193 |
dnl# check for struct lastlogx |
194 |
AC_CACHE_CHECK(for struct lastlogx, struct_lastlogx, |
195 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
196 |
#include <utmpx.h> |
197 |
#ifdef HAVE_LASTLOG_H |
198 |
#include <lastlog.h> |
199 |
#endif |
200 |
]], [[struct lastlogx ll;]])],[struct_lastlogx=yes],[struct_lastlogx=no])]) |
201 |
if test x$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, 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 |
}]])],[path_utmp=`cat conftestval`],[path_utmp=],[dnl |
238 |
AC_MSG_WARN(Define UTMP_FILE in config.h manually)])]) |
239 |
if test x$path_utmp != x; then |
240 |
AC_DEFINE_UNQUOTED(UTMP_FILE, "$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, 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 |
}]])],[path_utmpx=`cat conftestval`],[path_utmpx=],[dnl |
285 |
AC_MSG_WARN(Define UTMPX_FILE in config.h manually)])]) |
286 |
if test x$path_utmpx != x; then |
287 |
AC_DEFINE_UNQUOTED(UTMPX_FILE, "$path_utmpx", Define location of utmpx) |
288 |
fi |
289 |
|
290 |
dnl# -------------------------------------------------------------------------- |
291 |
|
292 |
dnl# find wtmp |
293 |
AC_CACHE_CHECK(where wtmp is located, 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 |
}]])],[path_wtmp=`cat conftestval`],[path_wtmp=],[dnl |
323 |
AC_MSG_WARN(Define WTMP_FILE in config.h manually)])]) |
324 |
if test x$path_wtmp != x; then |
325 |
AC_DEFINE_UNQUOTED(WTMP_FILE, "$path_wtmp", Define location of wtmp) |
326 |
fi |
327 |
dnl# -------------------------------------------------------------------------- |
328 |
|
329 |
dnl# find wtmpx |
330 |
AC_CACHE_CHECK(where wtmpx is located, 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 |
}]])],[path_wtmpx=`cat conftestval`],[path_wtmpx=],[dnl |
359 |
AC_MSG_WARN(Define WTMPX_FILE in config.h manually)])]) |
360 |
if test x$path_wtmpx != x; then |
361 |
AC_DEFINE_UNQUOTED(WTMPX_FILE, "$path_wtmpx", Define location of wtmpx) |
362 |
fi |
363 |
dnl# -------------------------------------------------------------------------- |
364 |
|
365 |
dnl# find lastlog |
366 |
AC_CACHE_CHECK(where lastlog is located, 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 |
}]])],[path_lastlog=`cat conftestval`],[path_lastlog=],[dnl |
400 |
AC_MSG_WARN(Define LASTLOG_FILE in config.h manually)])]) |
401 |
if test x$path_lastlog != x; then |
402 |
AC_DEFINE_UNQUOTED(LASTLOG_FILE, "$path_lastlog", Define location of lastlog) |
403 |
fi |
404 |
dnl# -------------------------------------------------------------------------- |
405 |
|
406 |
dnl# find lastlogx |
407 |
AC_CACHE_CHECK(where lastlogx is located, 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 |
}]])],[path_lastlogx=`cat conftestval`],[path_lastlogx=],[dnl |
435 |
AC_MSG_WARN(Define LASTLOGX_FILE in config.h manually)])]) |
436 |
if test x$path_lastlogx != x; then |
437 |
AC_DEFINE_UNQUOTED(LASTLOGX_FILE, "$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, 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 |
]])],[can_pass_fds=yes],[can_pass_fds=no])]) |
474 |
if test x$can_pass_fds = xyes; then |
475 |
AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing) |
476 |
else |
477 |
AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability]) |
478 |
fi |
479 |
]) |
480 |
|
481 |
AC_DEFUN([TTY_GROUP_CHECK], |
482 |
[ |
483 |
AC_CACHE_CHECK([for tty group], tty_group, |
484 |
[AC_RUN_IFELSE([AC_LANG_SOURCE([[ |
485 |
#include <sys/types.h> |
486 |
#include <sys/stat.h> |
487 |
#include <unistd.h> |
488 |
#include <grp.h> |
489 |
|
490 |
main() |
491 |
{ |
492 |
struct stat st; |
493 |
struct group *gr; |
494 |
char *tty; |
495 |
gr = getgrnam("tty"); |
496 |
tty = ttyname(0); |
497 |
if (gr != 0 |
498 |
&& tty != 0 |
499 |
&& (stat(tty, &st)) == 0 |
500 |
&& st.st_gid == gr->gr_gid) |
501 |
return 0; |
502 |
else |
503 |
return 1; |
504 |
}]])],[tty_group=yes],[tty_group=no],[tty_group=no])]) |
505 |
if test x$tty_group = xyes; then |
506 |
AC_DEFINE(TTY_GID_SUPPORT, 1, "") |
507 |
fi]) |
508 |
|