| 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/ptc) |
| 30 |
if test -e /dev/ptc; then |
| 31 |
AC_MSG_RESULT(yes) |
| 32 |
AC_DEFINE(CLONE_DEVICE, "/dev/ptc", [clone device filename]) |
| 33 |
have_clone=yes |
| 34 |
else |
| 35 |
AC_MSG_RESULT(no) |
| 36 |
fi |
| 37 |
|
| 38 |
case $host in |
| 39 |
*-*-cygwin*) |
| 40 |
have_clone=yes |
| 41 |
AC_DEFINE(CLONE_DEVICE, "/dev/ptmx", [clone device filename]) |
| 42 |
;; |
| 43 |
*) |
| 44 |
AC_MSG_CHECKING(for /dev/ptmx) |
| 45 |
if test -e /dev/ptmx; then |
| 46 |
AC_MSG_RESULT(yes) |
| 47 |
AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if you have /dev/ptmx]) |
| 48 |
AC_DEFINE(CLONE_DEVICE, "/dev/ptmx", [clone device filename]) |
| 49 |
have_clone=yes |
| 50 |
else |
| 51 |
AC_MSG_RESULT(no) |
| 52 |
fi |
| 53 |
;; |
| 54 |
esac |
| 55 |
|
| 56 |
if test x$ac_cv_func_getpt = xyes -o x$ac_cv_func_posix_openpt = xyes -o x$have_clone = xyes; then |
| 57 |
AC_MSG_CHECKING(for UNIX98 ptys) |
| 58 |
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>]], |
| 59 |
[[grantpt(0);unlockpt(0);ptsname(0);]])], |
| 60 |
[unix98_pty=yes |
| 61 |
AC_DEFINE(UNIX98_PTY, 1, "") |
| 62 |
AC_MSG_RESULT(yes)], |
| 63 |
[AC_MSG_RESULT(no)]) |
| 64 |
fi |
| 65 |
|
| 66 |
if test -z "$unix98_pty"; then |
| 67 |
AC_SEARCH_LIBS(openpty, util, AC_DEFINE(HAVE_OPENPTY, 1, "")) |
| 68 |
fi |
| 69 |
]) |
| 70 |
|
| 71 |
AC_DEFUN([UTMP_CHECK], |
| 72 |
[ |
| 73 |
support_utmp=yes |
| 74 |
support_wtmp=yes |
| 75 |
support_lastlog=yes |
| 76 |
|
| 77 |
AC_ARG_ENABLE(utmp, |
| 78 |
[AS_HELP_STRING([--enable-utmp],[enable utmp (utmpx) support])], |
| 79 |
[if test x$enableval = xyes -o x$enableval = xno; then |
| 80 |
support_utmp=$enableval |
| 81 |
fi]) |
| 82 |
|
| 83 |
AC_ARG_ENABLE(wtmp, |
| 84 |
[AS_HELP_STRING([--enable-wtmp],[enable wtmp (wtmpx) support (requires --enable-utmp)])], |
| 85 |
[if test x$enableval = xyes -o x$enableval = xno; then |
| 86 |
support_wtmp=$enableval |
| 87 |
fi]) |
| 88 |
|
| 89 |
AC_ARG_ENABLE(lastlog, |
| 90 |
[AS_HELP_STRING([--enable-lastlog],[enable lastlog support (requires --enable-utmp)])], |
| 91 |
[if test x$enableval = xyes -o x$enableval = xno; then |
| 92 |
support_lastlog=$enableval |
| 93 |
fi]) |
| 94 |
|
| 95 |
if test x$support_utmp = xyes; then |
| 96 |
AC_DEFINE(UTMP_SUPPORT, 1, Define if you want to have utmp/utmpx support) |
| 97 |
fi |
| 98 |
if test x$support_wtmp = xyes; then |
| 99 |
AC_DEFINE(WTMP_SUPPORT, 1, Define if you want to have wtmp support when utmp/utmpx is enabled) |
| 100 |
fi |
| 101 |
if test x$support_lastlog = xyes; then |
| 102 |
AC_DEFINE(LASTLOG_SUPPORT, 1, Define if you want to have lastlog support when utmp/utmpx is enabled) |
| 103 |
fi |
| 104 |
|
| 105 |
AC_CHECK_FUNCS( \ |
| 106 |
updwtmp \ |
| 107 |
updwtmpx \ |
| 108 |
updlastlogx \ |
| 109 |
) |
| 110 |
|
| 111 |
AC_CHECK_HEADERS(lastlog.h) |
| 112 |
|
| 113 |
dnl# -------------------------------------------------------------------------- |
| 114 |
dnl# DO ALL UTMP AND WTMP CHECKING |
| 115 |
dnl# -------------------------------------------------------------------------- |
| 116 |
dnl# check for host field in utmp structure |
| 117 |
|
| 118 |
dnl# -------------------------------------------- |
| 119 |
AC_CHECK_HEADERS(utmp.h, |
| 120 |
[AC_CACHE_CHECK([for struct utmp], pt_cv_struct_utmp, |
| 121 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
| 122 |
#include <utmp.h>]], [[struct utmp ut;]])],[pt_cv_struct_utmp=yes],[pt_cv_struct_utmp=no])]) |
| 123 |
if test x$pt_cv_struct_utmp = xyes; then |
| 124 |
AC_DEFINE(HAVE_STRUCT_UTMP, 1, Define if utmp.h has struct utmp) |
| 125 |
fi |
| 126 |
] |
| 127 |
|
| 128 |
AC_CACHE_CHECK(for ut_host in utmp struct, pt_cv_struct_utmp_host, |
| 129 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
| 130 |
#include <utmp.h>]], [[struct utmp ut; ut.ut_host;]])],[pt_cv_struct_utmp_host=yes],[pt_cv_struct_utmp_host=no])]) |
| 131 |
if test x$pt_cv_struct_utmp_host = xyes; then |
| 132 |
AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host) |
| 133 |
fi |
| 134 |
|
| 135 |
AC_CACHE_CHECK(for ut_pid in utmp struct, pt_cv_struct_utmp_pid, |
| 136 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
| 137 |
#include <utmp.h>]], [[struct utmp ut; ut.ut_pid;]])],[pt_cv_struct_utmp_pid=yes],[pt_cv_struct_utmp_pid=no])]) |
| 138 |
if test x$pt_cv_struct_utmp_pid = xyes; then |
| 139 |
AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid) |
| 140 |
fi |
| 141 |
) dnl# AC_CHECK_HEADERS(utmp.h |
| 142 |
|
| 143 |
dnl# -------------------------------------------- |
| 144 |
|
| 145 |
AC_CHECK_HEADERS(utmpx.h, |
| 146 |
[AC_CACHE_CHECK([for struct utmpx], pt_cv_struct_utmpx, |
| 147 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
| 148 |
#include <utmpx.h>]], [[struct utmpx ut;]])],[pt_cv_struct_utmpx=yes],[pt_cv_struct_utmpx=no])]) |
| 149 |
if test x$pt_cv_struct_utmpx = xyes; then |
| 150 |
AC_DEFINE(HAVE_STRUCT_UTMPX, 1, Define if utmpx.h has struct utmpx) |
| 151 |
fi |
| 152 |
] |
| 153 |
|
| 154 |
AC_CACHE_CHECK(for host in utmpx struct, pt_cv_struct_utmpx_host, |
| 155 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
| 156 |
#include <utmpx.h>]], [[struct utmpx utx; utx.ut_host;]])],[pt_cv_struct_utmpx_host=yes],[pt_cv_struct_utmpx_host=no])]) |
| 157 |
if test x$pt_cv_struct_utmpx_host = xyes; then |
| 158 |
AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host) |
| 159 |
fi |
| 160 |
|
| 161 |
AC_CACHE_CHECK(for session in utmpx struct, pt_cv_struct_utmpx_session, |
| 162 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
| 163 |
#include <utmpx.h>]], [[struct utmpx utx; utx.ut_session;]])],[pt_cv_struct_utmpx_session=yes],[pt_cv_struct_utmpx_session=no])]) |
| 164 |
if test x$pt_cv_struct_utmpx_session = xyes; then |
| 165 |
AC_DEFINE(HAVE_UTMPX_SESSION, 1, Define if struct utmpx contains ut_session) |
| 166 |
fi |
| 167 |
) dnl# AC_CHECK_HEADERS(utmpx.h |
| 168 |
|
| 169 |
dnl# -------------------------------------------------------------------------- |
| 170 |
dnl# check for struct lastlog |
| 171 |
AC_CACHE_CHECK(for struct lastlog, pt_cv_struct_lastlog, |
| 172 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
| 173 |
#include <utmp.h> |
| 174 |
#ifdef HAVE_LASTLOG_H |
| 175 |
#include <lastlog.h> |
| 176 |
#endif |
| 177 |
]], [[struct lastlog ll;]])],[pt_cv_struct_lastlog=yes],[pt_cv_struct_lastlog=no])]) |
| 178 |
if test x$pt_cv_struct_lastlog = xyes; then |
| 179 |
AC_DEFINE(HAVE_STRUCT_LASTLOG, 1, Define if utmp.h or lastlog.h has struct lastlog) |
| 180 |
fi |
| 181 |
|
| 182 |
dnl# check for struct lastlogx |
| 183 |
AC_CACHE_CHECK(for struct lastlogx, pt_cv_struct_lastlogx, |
| 184 |
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h> |
| 185 |
#include <utmpx.h> |
| 186 |
#ifdef HAVE_LASTLOG_H |
| 187 |
#include <lastlog.h> |
| 188 |
#endif |
| 189 |
]], [[struct lastlogx ll;]])],[pt_cv_struct_lastlogx=yes],[pt_cv_struct_lastlogx=no])]) |
| 190 |
if test x$pt_cv_struct_lastlogx = xyes; then |
| 191 |
AC_DEFINE(HAVE_STRUCT_LASTLOGX, 1, Define if utmpx.h or lastlog.h has struct lastlogx) |
| 192 |
fi |
| 193 |
|
| 194 |
dnl# -------------------------------------------------------------------------- |
| 195 |
dnl# FIND FILES |
| 196 |
dnl# -------------------------------------------------------------------------- |
| 197 |
|
| 198 |
dnl# find utmp |
| 199 |
AC_CACHE_CHECK(where utmp is located, pt_cv_path_utmp, |
| 200 |
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h> |
| 201 |
#include <stdlib.h> |
| 202 |
#include <sys/types.h> |
| 203 |
#include <utmp.h> |
| 204 |
#include <errno.h> |
| 205 |
int main() |
| 206 |
{ |
| 207 |
char **u, *utmplist[] = { |
| 208 |
"/var/run/utmp", "/var/adm/utmp", "/etc/utmp", "/usr/etc/utmp", "/usr/adm/utmp", NULL }; |
| 209 |
FILE *a, *f=fopen("conftestval", "w"); |
| 210 |
if (!f) exit(1); |
| 211 |
#ifdef UTMP_FILE |
| 212 |
fprintf(f, "%s\n", UTMP_FILE); |
| 213 |
exit(0); |
| 214 |
#endif |
| 215 |
#ifdef _PATH_UTMP |
| 216 |
fprintf(f, "%s\n", _PATH_UTMP); |
| 217 |
exit(0); |
| 218 |
#endif |
| 219 |
for (u = utmplist; *u; u++) { |
| 220 |
if ((a = fopen(*u, "r")) != NULL || errno == EACCES) { |
| 221 |
fprintf(f, "%s\n", *u); |
| 222 |
exit(0); |
| 223 |
} |
| 224 |
} |
| 225 |
exit(0); |
| 226 |
}]])],[pt_cv_path_utmp=`cat conftestval`],[pt_cv_path_utmp=],[dnl |
| 227 |
AC_MSG_WARN(Define UTMP_FILE in config.h manually)])]) |
| 228 |
if test x$pt_cv_path_utmp != x; then |
| 229 |
AC_DEFINE_UNQUOTED(UTMP_FILE, "$pt_cv_path_utmp", Define location of utmp) |
| 230 |
fi |
| 231 |
|
| 232 |
dnl# -------------------------------------------------------------------------- |
| 233 |
|
| 234 |
dnl# find wtmp |
| 235 |
AC_CACHE_CHECK(where wtmp is located, pt_cv_path_wtmp, |
| 236 |
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h> |
| 237 |
#include <stdlib.h> |
| 238 |
#include <sys/types.h> |
| 239 |
#ifdef HAVE_UTMP_H |
| 240 |
#include <utmp.h> |
| 241 |
#endif |
| 242 |
#include <errno.h> |
| 243 |
int main() |
| 244 |
{ |
| 245 |
char **w, *wtmplist[] = { |
| 246 |
"/var/log/wtmp", "/var/adm/wtmp", "/etc/wtmp", "/usr/etc/wtmp", "/usr/adm/wtmp", NULL }; |
| 247 |
FILE *a, *f=fopen("conftestval", "w"); |
| 248 |
if (!f) exit(1); |
| 249 |
#ifdef WTMP_FILE |
| 250 |
fprintf(f, "%s\n", WTMP_FILE); |
| 251 |
exit(0); |
| 252 |
#endif |
| 253 |
#ifdef _PATH_WTMP |
| 254 |
fprintf(f, "%s\n", _PATH_WTMP); |
| 255 |
exit(0); |
| 256 |
#endif |
| 257 |
for (w = wtmplist; *w; w++) { |
| 258 |
if ((a = fopen(*w, "r")) != NULL || errno == EACCES) { |
| 259 |
fprintf(f, "%s\n", *w); |
| 260 |
exit(0); |
| 261 |
} |
| 262 |
} |
| 263 |
exit(0); |
| 264 |
}]])],[pt_cv_path_wtmp=`cat conftestval`],[pt_cv_path_wtmp=],[dnl |
| 265 |
AC_MSG_WARN(Define WTMP_FILE in config.h manually)])]) |
| 266 |
if test x$pt_cv_path_wtmp != x; then |
| 267 |
AC_DEFINE_UNQUOTED(WTMP_FILE, "$pt_cv_path_wtmp", Define location of wtmp) |
| 268 |
fi |
| 269 |
dnl# -------------------------------------------------------------------------- |
| 270 |
|
| 271 |
dnl# find wtmpx |
| 272 |
AC_CACHE_CHECK(where wtmpx is located, pt_cv_path_wtmpx, |
| 273 |
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h> |
| 274 |
#include <stdlib.h> |
| 275 |
#ifdef HAVE_UTMPX_H |
| 276 |
#include <utmpx.h> |
| 277 |
#endif |
| 278 |
#include <errno.h> |
| 279 |
int main() |
| 280 |
{ |
| 281 |
char **w, *wtmplist[] = { |
| 282 |
"/var/log/wtmpx", "/var/adm/wtmpx", NULL }; |
| 283 |
FILE *a, *f=fopen("conftestval", "w"); |
| 284 |
if (!f) exit(1); |
| 285 |
#ifdef WTMPX_FILE |
| 286 |
fprintf(f, "%s\n", WTMPX_FILE); |
| 287 |
exit(0); |
| 288 |
#endif |
| 289 |
#ifdef _PATH_WTMPX |
| 290 |
fprintf(f, "%s\n", _PATH_WTMPX); |
| 291 |
exit(0); |
| 292 |
#endif |
| 293 |
for (w = wtmplist; *w; w++) { |
| 294 |
if ((a = fopen(*w, "r")) != NULL || errno == EACCES) { |
| 295 |
fprintf(f, "%s\n", *w); |
| 296 |
exit(0); |
| 297 |
} |
| 298 |
} |
| 299 |
exit(0); |
| 300 |
}]])],[pt_cv_path_wtmpx=`cat conftestval`],[pt_cv_path_wtmpx=],[dnl |
| 301 |
AC_MSG_WARN(Define WTMPX_FILE in config.h manually)])]) |
| 302 |
if test x$pt_cv_path_wtmpx != x; then |
| 303 |
AC_DEFINE_UNQUOTED(WTMPX_FILE, "$pt_cv_path_wtmpx", Define location of wtmpx) |
| 304 |
fi |
| 305 |
dnl# -------------------------------------------------------------------------- |
| 306 |
|
| 307 |
dnl# find lastlog |
| 308 |
AC_CACHE_CHECK(where lastlog is located, pt_cv_path_lastlog, |
| 309 |
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h> |
| 310 |
#include <stdlib.h> |
| 311 |
#include <sys/types.h> |
| 312 |
#ifdef HAVE_UTMPX_H |
| 313 |
#include <utmpx.h> |
| 314 |
#elif defined(HAVE_UTMP_H) |
| 315 |
#include <utmp.h> |
| 316 |
#endif |
| 317 |
#ifdef HAVE_LASTLOG_H |
| 318 |
#include <lastlog.h> |
| 319 |
#endif |
| 320 |
#include <errno.h> |
| 321 |
int main() |
| 322 |
{ |
| 323 |
char **w, *lastloglist[] = { "/var/log/lastlog", NULL }; |
| 324 |
FILE *a, *f=fopen("conftestval", "w"); |
| 325 |
if (!f) exit(1); |
| 326 |
#ifdef LASTLOG_FILE |
| 327 |
fprintf(f, "%s\n", LASTLOG_FILE); |
| 328 |
exit(0); |
| 329 |
#endif |
| 330 |
#ifdef _PATH_LASTLOG |
| 331 |
fprintf(f, "%s\n", _PATH_LASTLOG); |
| 332 |
exit(0); |
| 333 |
#endif |
| 334 |
for (w = lastloglist; *w; w++) { |
| 335 |
if ((a = fopen(*w, "r")) != NULL || errno == EACCES) { |
| 336 |
fprintf(f, "%s\n", *w); |
| 337 |
exit(0); |
| 338 |
} |
| 339 |
} |
| 340 |
exit(0); |
| 341 |
}]])],[pt_cv_path_lastlog=`cat conftestval`],[pt_cv_path_lastlog=],[dnl |
| 342 |
AC_MSG_WARN(Define LASTLOG_FILE in config.h manually)])]) |
| 343 |
if test x$pt_cv_path_lastlog != x; then |
| 344 |
AC_DEFINE_UNQUOTED(LASTLOG_FILE, "$pt_cv_path_lastlog", Define location of lastlog) |
| 345 |
fi |
| 346 |
dnl# -------------------------------------------------------------------------- |
| 347 |
|
| 348 |
dnl# find lastlogx |
| 349 |
AC_CACHE_CHECK(where lastlogx is located, pt_cv_path_lastlogx, |
| 350 |
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h> |
| 351 |
#include <stdlib.h> |
| 352 |
#ifdef HAVE_UTMPX_H |
| 353 |
#include <utmpx.h> |
| 354 |
#endif |
| 355 |
#include <errno.h> |
| 356 |
int main() |
| 357 |
{ |
| 358 |
char **w, *wtmplist[] = { "/var/log/lastlogx", "/var/adm/lastlogx", NULL }; |
| 359 |
FILE *a, *f=fopen("conftestval", "w"); |
| 360 |
if (!f) exit(1); |
| 361 |
#ifdef LASTLOGX_FILE |
| 362 |
fprintf(f, "%s\n", LASTLOGX_FILE); |
| 363 |
exit(0); |
| 364 |
#endif |
| 365 |
#ifdef _PATH_LASTLOGX |
| 366 |
fprintf(f, "%s\n", _PATH_LASTLOGX); |
| 367 |
exit(0); |
| 368 |
#endif |
| 369 |
for (w = wtmplist; *w; w++) { |
| 370 |
if ((a = fopen(*w, "r")) != NULL || errno == EACCES) { |
| 371 |
fprintf(f, "%s\n", *w); |
| 372 |
exit(0); |
| 373 |
} |
| 374 |
} |
| 375 |
exit(0); |
| 376 |
}]])],[pt_cv_path_lastlogx=`cat conftestval`],[pt_cv_path_lastlogx=],[dnl |
| 377 |
AC_MSG_WARN(Define LASTLOGX_FILE in config.h manually)])]) |
| 378 |
if test x$pt_cv_path_lastlogx != x; then |
| 379 |
AC_DEFINE_UNQUOTED(LASTLOGX_FILE, "$pt_cv_path_lastlogx", Define location of lastlogx) |
| 380 |
fi |
| 381 |
]) |
| 382 |
|
| 383 |
AC_DEFUN([SCM_RIGHTS_CHECK], |
| 384 |
[ |
| 385 |
AC_CACHE_CHECK(for unix-compliant filehandle passing ability, pt_cv_can_pass_fds, |
| 386 |
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[ |
| 387 |
#include <cstddef> // broken bsds (is that redundant?) need this |
| 388 |
#include <sys/types.h> |
| 389 |
#include <sys/socket.h> |
| 390 |
#include <sys/uio.h> |
| 391 |
]], [[ |
| 392 |
{ |
| 393 |
msghdr msg; |
| 394 |
iovec iov; |
| 395 |
char buf [100]; |
| 396 |
char data = 0; |
| 397 |
|
| 398 |
iov.iov_base = &data; |
| 399 |
iov.iov_len = 1; |
| 400 |
|
| 401 |
msg.msg_iov = &iov; |
| 402 |
msg.msg_iovlen = 1; |
| 403 |
msg.msg_control = buf; |
| 404 |
msg.msg_controllen = sizeof buf; |
| 405 |
|
| 406 |
cmsghdr *cmsg = CMSG_FIRSTHDR (&msg); |
| 407 |
cmsg->cmsg_level = SOL_SOCKET; |
| 408 |
cmsg->cmsg_type = SCM_RIGHTS; |
| 409 |
cmsg->cmsg_len = 100; |
| 410 |
|
| 411 |
*(int *)CMSG_DATA (cmsg) = 5; |
| 412 |
|
| 413 |
return sendmsg (3, &msg, 0); |
| 414 |
} |
| 415 |
]])],[pt_cv_can_pass_fds=yes],[pt_cv_can_pass_fds=no])]) |
| 416 |
if test x$pt_cv_can_pass_fds = xyes; then |
| 417 |
AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing) |
| 418 |
else |
| 419 |
AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability]) |
| 420 |
fi |
| 421 |
]) |
| 422 |
|
| 423 |
AC_DEFUN([TTY_GROUP_CHECK], |
| 424 |
[ |
| 425 |
AC_CACHE_CHECK([for tty group], pt_cv_tty_group, |
| 426 |
[AC_RUN_IFELSE([AC_LANG_SOURCE([[ |
| 427 |
#include <sys/types.h> |
| 428 |
#include <sys/stat.h> |
| 429 |
#include <unistd.h> |
| 430 |
#include <grp.h> |
| 431 |
|
| 432 |
int main() |
| 433 |
{ |
| 434 |
struct stat st; |
| 435 |
struct group *gr; |
| 436 |
char *tty; |
| 437 |
gr = getgrnam("tty"); |
| 438 |
tty = ttyname(0); |
| 439 |
if (gr != 0 |
| 440 |
&& tty != 0 |
| 441 |
&& (stat(tty, &st)) == 0 |
| 442 |
&& st.st_gid == gr->gr_gid) |
| 443 |
return 0; |
| 444 |
else |
| 445 |
return 1; |
| 446 |
}]])],[pt_cv_tty_group=yes],[pt_cv_tty_group=no],[pt_cv_tty_group=no])]) |
| 447 |
if test x$pt_cv_tty_group = xyes; then |
| 448 |
AC_DEFINE(TTY_GID_SUPPORT, 1, "") |
| 449 |
fi]) |
| 450 |
|
