libptytty/ptytty.m4

dnl this file is part of libptytty, do not make local modifications
dnl http://software.schmorp.de/pkg/libptytty

AC_DEFUN([PT_FIND_FILE],
[AC_CACHE_CHECK(where $1 is located, pt_cv_path_$1,
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
$5
int main()
{
    const char **path, *list[] = { $4, NULL };
    FILE *f = fopen("conftestval", "w");
    if (!f) return 1;
#ifdef $2
    fprintf(f, "%s\n", $2);
#elif defined($3)
    fprintf(f, "%s\n", $3);
#else
    for (path = list; *path; path++) {
        struct stat st;
        if (stat(*path, &st) == 0) {
            fprintf(f, "%s\n", *path);
            break;
        }
    }
#endif
    return fclose(f) != 0;
}]])],[pt_cv_path_$1=`cat conftestval`],[pt_cv_path_$1=],
[AC_MSG_WARN(Define $2 in config.h manually)])])
if test x$pt_cv_path_$1 != x; then
  AC_DEFINE_UNQUOTED($2, "$pt_cv_path_$1", Define location of $1)
fi])

AC_DEFUN([PTY_CHECK],
[
AC_CHECK_HEADERS( \
  pty.h \
  util.h \
  libutil.h \
  sys/ioctl.h \
  sys/stropts.h \
  stropts.h \
)

AC_CHECK_FUNCS( \
  revoke \
  _getpty \
  getpt \
  posix_openpt \
  isastream \
  setuid \
  seteuid \
  setreuid \
  setresuid \
)

AC_MSG_CHECKING(for UNIX98 ptys)
AC_LINK_IFELSE(
  [AC_LANG_PROGRAM(
     [[#include <stdlib.h>]],
     [[grantpt(0);unlockpt(0);ptsname(0);]])],
  [unix98_pty=yes
   AC_DEFINE(UNIX98_PTY, 1, "")
   AC_MSG_RESULT(yes)],
  [AC_MSG_RESULT(no)])

if test -z "$unix98_pty"; then
  AC_SEARCH_LIBS(openpty, util, AC_DEFINE(HAVE_OPENPTY, 1, ""))
fi
])

AC_DEFUN([UTMP_CHECK],
[
support_utmp=yes
support_wtmp=yes
support_lastlog=yes

AC_ARG_ENABLE(utmp,
  [AS_HELP_STRING([--enable-utmp],[enable utmp (utmpx) support])],
  [if test x$enableval = xyes -o x$enableval = xno; then
    support_utmp=$enableval
  fi])

AC_ARG_ENABLE(wtmp,
  [AS_HELP_STRING([--enable-wtmp],[enable wtmp (wtmpx) support (requires --enable-utmp)])],
  [if test x$enableval = xyes -o x$enableval = xno; then
    support_wtmp=$enableval
  fi])

AC_ARG_ENABLE(lastlog,
  [AS_HELP_STRING([--enable-lastlog],[enable lastlog support (requires --enable-utmp)])],
  [if test x$enableval = xyes -o x$enableval = xno; then
    support_lastlog=$enableval
  fi])

if test x$support_utmp = xyes; then
  AC_DEFINE(UTMP_SUPPORT, 1, Define if you want to have utmp/utmpx support)
fi
if test x$support_wtmp = xyes; then
  AC_DEFINE(WTMP_SUPPORT, 1, Define if you want to have wtmp support when utmp/utmpx is enabled)
fi
if test x$support_lastlog = xyes; then
  AC_DEFINE(LASTLOG_SUPPORT, 1, Define if you want to have lastlog support when utmp/utmpx is enabled)
fi

AC_CHECK_FUNCS( \
        updwtmp \
        updwtmpx \
        updlastlogx \
)

AC_CHECK_HEADERS(lastlog.h)

dnl# --------------------------------------------------------------------------
dnl# DO ALL UTMP AND WTMP CHECKING
dnl# --------------------------------------------------------------------------
dnl# check for host field in utmp structure

dnl# --------------------------------------------
AC_CHECK_HEADERS(utmp.h,
AC_CHECK_TYPES([struct utmp], [], [], [
#include <sys/types.h>
#include <utmp.h>
])

AC_CHECK_MEMBER([struct utmp.ut_host],
[AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host)], [], [
#include <sys/types.h>
#include <utmp.h>
])

AC_CHECK_MEMBER([struct utmp.ut_pid],
[AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid)], [], [
#include <sys/types.h>
#include <utmp.h>
])
) dnl# AC_CHECK_HEADERS(utmp.h

dnl# --------------------------------------------

AC_CHECK_HEADERS(utmpx.h,
AC_CHECK_TYPES([struct utmpx], [], [], [
#include <sys/types.h>
#include <utmpx.h>
])

AC_CHECK_MEMBER([struct utmpx.ut_host],
[AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host)], [], [
#include <sys/types.h>
#include <utmpx.h>
])

AC_CHECK_MEMBER([struct utmpx.ut_session],
[AC_DEFINE(HAVE_UTMPX_SESSION, 1, Define if struct utmpx contains ut_session)], [], [
#include <sys/types.h>
#include <utmpx.h>
])
) dnl# AC_CHECK_HEADERS(utmpx.h

dnl# --------------------------------------------------------------------------
dnl# check for struct lastlog
AC_CHECK_TYPES([struct lastlog], [], [], [
#include <sys/types.h>
#include <utmp.h>
#ifdef HAVE_LASTLOG_H
#include <lastlog.h>
#endif
])

dnl# check for struct lastlogx
AC_CHECK_TYPES([struct lastlogx], [], [], [
#include <sys/types.h>
#include <utmpx.h>
#ifdef HAVE_LASTLOG_H
#include <lastlog.h>
#endif
])

dnl# --------------------------------------------------------------------------
dnl# FIND FILES
dnl# --------------------------------------------------------------------------

dnl# find utmp
PT_FIND_FILE([utmp], [UTMP_FILE], [_PATH_UTMP],
["/var/run/utmp", "/var/adm/utmp", "/etc/utmp", "/usr/etc/utmp", "/usr/adm/utmp"],[
#include <sys/types.h>
#include <utmp.h>
])

dnl# --------------------------------------------------------------------------

dnl# find wtmp
PT_FIND_FILE([wtmp], [WTMP_FILE], [_PATH_WTMP],
["/var/log/wtmp", "/var/adm/wtmp", "/etc/wtmp", "/usr/etc/wtmp", "/usr/adm/wtmp"],[
#include <sys/types.h>
#ifdef HAVE_UTMP_H
#include <utmp.h>
#endif
])
dnl# --------------------------------------------------------------------------

dnl# find wtmpx
PT_FIND_FILE([wtmpx], [WTMPX_FILE], [_PATH_WTMPX],
["/var/log/wtmpx", "/var/adm/wtmpx"],[
#ifdef HAVE_UTMPX_H
#include <utmpx.h>
#endif
])
dnl# --------------------------------------------------------------------------

dnl# find lastlog
PT_FIND_FILE([lastlog], [LASTLOG_FILE], [_PATH_LASTLOG],
["/var/log/lastlog"],[
#include <sys/types.h>
#ifdef HAVE_UTMP_H
#include <utmp.h>
#endif
#ifdef HAVE_LASTLOG_H
#include <lastlog.h>
#endif
])
dnl# --------------------------------------------------------------------------

dnl# find lastlogx
PT_FIND_FILE([lastlogx], [LASTLOGX_FILE], [_PATH_LASTLOGX],
["/var/log/lastlogx", "/var/adm/lastlogx"],[
#ifdef HAVE_UTMPX_H
#include <utmpx.h>
#endif
])
])

AC_DEFUN([SCM_RIGHTS_CHECK],
[
AC_CACHE_CHECK(for unix-compliant filehandle passing ability, pt_cv_can_pass_fds,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <cstddef> // broken bsds (is that redundant?) need this
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/uio.h>
]], [[
{
  msghdr msg;
  iovec iov;
  char buf [100];
  char data = 0;

  iov.iov_base = &data;
  iov.iov_len  = 1;

  msg.msg_iov        = &iov;
  msg.msg_iovlen     = 1;
  msg.msg_control    = buf;
  msg.msg_controllen = sizeof buf;

  cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
  cmsg->cmsg_level = SOL_SOCKET;
  cmsg->cmsg_type  = SCM_RIGHTS;
  cmsg->cmsg_len   = 100;

  *(int *)CMSG_DATA (cmsg) = 5;

  return sendmsg (3, &msg, 0);
}
]])],[pt_cv_can_pass_fds=yes],[pt_cv_can_pass_fds=no])])
if test x$pt_cv_can_pass_fds = xyes; then
   AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing)
else
   AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability])
fi
])

AC_DEFUN([TTY_GROUP_CHECK],
[
AC_CACHE_CHECK([for tty group], pt_cv_tty_group,
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <grp.h>

int main()
{
  struct stat st;
  struct group *gr;
  char *tty;
  gr = getgrnam("tty");
  tty = ttyname(0);
  if (gr != 0
      && tty != 0
      && (stat(tty, &st)) == 0
      && st.st_gid == gr->gr_gid)
    return 0;
  else
    return 1;
}]])],[pt_cv_tty_group=yes],[pt_cv_tty_group=no],[pt_cv_tty_group=no])])
if test x$pt_cv_tty_group = xyes; then
  AC_DEFINE(TTY_GID_SUPPORT, 1, "")
fi])

Revision:	1.29
Committed:	Sun Nov 20 14:38:44 2011 UTC (12 years, 6 months ago) by sf-exg
Branch:	MAIN
Changes since 1.28:	+9 -7 lines
Log Message:	Fix style.
#	User	Rev	Content
1	root	1.2	dnl this file is part of libptytty, do not make local modifications
2			dnl http://software.schmorp.de/pkg/libptytty
3
4	sf-exg	1.24	AC_DEFUN([PT_FIND_FILE],
5			[AC_CACHE_CHECK(where $1 is located, pt_cv_path_$1,
6			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
7			#include <stdlib.h>
8	sf-exg	1.25	#include <sys/stat.h>
9	sf-exg	1.24	$5
10			int main()
11			{
12	sf-exg	1.27	const char *path, list[] = { $4, NULL };
13	sf-exg	1.25	FILE *f = fopen("conftestval", "w");
14			if (!f) return 1;
15	sf-exg	1.24	#ifdef $2
16			fprintf(f, "%s\n", $2);
17	sf-exg	1.25	#elif defined($3)
18	sf-exg	1.24	fprintf(f, "%s\n", $3);
19	sf-exg	1.25	#else
20	sf-exg	1.24	for (path = list; *path; path++) {
21	sf-exg	1.25	struct stat st;
22			if (stat(*path, &st) == 0) {
23	sf-exg	1.24	fprintf(f, "%s\n", *path);
24	sf-exg	1.25	break;
25	sf-exg	1.24	}
26			}
27	sf-exg	1.25	#endif
28			return fclose(f) != 0;
29	sf-exg	1.24	}]])],[pt_cv_path_$1=`cat conftestval`],[pt_cv_path_$1=],
30			[AC_MSG_WARN(Define $2 in config.h manually)])])
31			if test x$pt_cv_path_$1 != x; then
32			AC_DEFINE_UNQUOTED($2, "$pt_cv_path_$1", Define location of $1)
33			fi])
34
35	ayin	1.1	AC_DEFUN([PTY_CHECK],
36			[
37			AC_CHECK_HEADERS( \
38			pty.h \
39			util.h \
40			libutil.h \
41			sys/ioctl.h \
42			sys/stropts.h \
43	root	1.17	stropts.h \
44	ayin	1.1	)
45
46			AC_CHECK_FUNCS( \
47			revoke \
48			_getpty \
49			getpt \
50			posix_openpt \
51			isastream \
52	root	1.7	setuid \
53			seteuid \
54			setreuid \
55			setresuid \
56	ayin	1.1	)
57
58	sf-exg	1.29	AC_MSG_CHECKING(for UNIX98 ptys)
59			AC_LINK_IFELSE(
60			[AC_LANG_PROGRAM(
61			[[#include <stdlib.h>]],
62			[[grantpt(0);unlockpt(0);ptsname(0);]])],
63			[unix98_pty=yes
64			AC_DEFINE(UNIX98_PTY, 1, "")
65			AC_MSG_RESULT(yes)],
66			[AC_MSG_RESULT(no)])
67	ayin	1.1
68			if test -z "$unix98_pty"; then
69	sf-exg	1.21	AC_SEARCH_LIBS(openpty, util, AC_DEFINE(HAVE_OPENPTY, 1, ""))
70	ayin	1.1	fi
71			])
72
73			AC_DEFUN([UTMP_CHECK],
74			[
75	ayin	1.5	support_utmp=yes
76			support_wtmp=yes
77			support_lastlog=yes
78
79	ayin	1.4	AC_ARG_ENABLE(utmp,
80	ayin	1.11	[AS_HELP_STRING([--enable-utmp],[enable utmp (utmpx) support])],
81	ayin	1.4	[if test x$enableval = xyes -o x$enableval = xno; then
82			support_utmp=$enableval
83			fi])
84
85			AC_ARG_ENABLE(wtmp,
86	ayin	1.11	[AS_HELP_STRING([--enable-wtmp],[enable wtmp (wtmpx) support (requires --enable-utmp)])],
87	ayin	1.4	[if test x$enableval = xyes -o x$enableval = xno; then
88			support_wtmp=$enableval
89			fi])
90
91			AC_ARG_ENABLE(lastlog,
92	ayin	1.11	[AS_HELP_STRING([--enable-lastlog],[enable lastlog support (requires --enable-utmp)])],
93	ayin	1.4	[if test x$enableval = xyes -o x$enableval = xno; then
94			support_lastlog=$enableval
95			fi])
96
97			if test x$support_utmp = xyes; then
98			AC_DEFINE(UTMP_SUPPORT, 1, Define if you want to have utmp/utmpx support)
99			fi
100			if test x$support_wtmp = xyes; then
101			AC_DEFINE(WTMP_SUPPORT, 1, Define if you want to have wtmp support when utmp/utmpx is enabled)
102			fi
103			if test x$support_lastlog = xyes; then
104			AC_DEFINE(LASTLOG_SUPPORT, 1, Define if you want to have lastlog support when utmp/utmpx is enabled)
105			fi
106
107	ayin	1.1	AC_CHECK_FUNCS( \
108			updwtmp \
109			updwtmpx \
110	ayin	1.12	updlastlogx \
111	ayin	1.1	)
112
113	ayin	1.15	AC_CHECK_HEADERS(lastlog.h)
114	ayin	1.1
115			dnl# --------------------------------------------------------------------------
116			dnl# DO ALL UTMP AND WTMP CHECKING
117			dnl# --------------------------------------------------------------------------
118			dnl# check for host field in utmp structure
119
120			dnl# --------------------------------------------
121	ayin	1.15	AC_CHECK_HEADERS(utmp.h,
122	sf-exg	1.26	AC_CHECK_TYPES([struct utmp], [], [], [
123			#include <sys/types.h>
124			#include <utmp.h>
125			])
126	ayin	1.1
127	sf-exg	1.26	AC_CHECK_MEMBER([struct utmp.ut_host],
128			[AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host)], [], [
129			#include <sys/types.h>
130			#include <utmp.h>
131			])
132	ayin	1.1
133	sf-exg	1.26	AC_CHECK_MEMBER([struct utmp.ut_pid],
134			[AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid)], [], [
135			#include <sys/types.h>
136			#include <utmp.h>
137			])
138	ayin	1.15	) dnl# AC_CHECK_HEADERS(utmp.h
139	ayin	1.1
140			dnl# --------------------------------------------
141
142	ayin	1.15	AC_CHECK_HEADERS(utmpx.h,
143	sf-exg	1.26	AC_CHECK_TYPES([struct utmpx], [], [], [
144			#include <sys/types.h>
145			#include <utmpx.h>
146			])
147	ayin	1.1
148	sf-exg	1.26	AC_CHECK_MEMBER([struct utmpx.ut_host],
149			[AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host)], [], [
150			#include <sys/types.h>
151			#include <utmpx.h>
152			])
153	ayin	1.1
154	sf-exg	1.26	AC_CHECK_MEMBER([struct utmpx.ut_session],
155			[AC_DEFINE(HAVE_UTMPX_SESSION, 1, Define if struct utmpx contains ut_session)], [], [
156			#include <sys/types.h>
157			#include <utmpx.h>
158			])
159	ayin	1.15	) dnl# AC_CHECK_HEADERS(utmpx.h
160	ayin	1.1
161			dnl# --------------------------------------------------------------------------
162			dnl# check for struct lastlog
163	sf-exg	1.26	AC_CHECK_TYPES([struct lastlog], [], [], [
164			#include <sys/types.h>
165	ayin	1.1	#include <utmp.h>
166			#ifdef HAVE_LASTLOG_H
167			#include <lastlog.h>
168			#endif
169	sf-exg	1.26	])
170	ayin	1.1
171			dnl# check for struct lastlogx
172	sf-exg	1.26	AC_CHECK_TYPES([struct lastlogx], [], [], [
173			#include <sys/types.h>
174	ayin	1.1	#include <utmpx.h>
175			#ifdef HAVE_LASTLOG_H
176			#include <lastlog.h>
177			#endif
178	sf-exg	1.26	])
179	ayin	1.1
180			dnl# --------------------------------------------------------------------------
181			dnl# FIND FILES
182			dnl# --------------------------------------------------------------------------
183
184			dnl# find utmp
185	sf-exg	1.24	PT_FIND_FILE([utmp], [UTMP_FILE], [_PATH_UTMP],
186			["/var/run/utmp", "/var/adm/utmp", "/etc/utmp", "/usr/etc/utmp", "/usr/adm/utmp"],[
187	ayin	1.1	#include <sys/types.h>
188			#include <utmp.h>
189	sf-exg	1.24	])
190	ayin	1.1
191			dnl# --------------------------------------------------------------------------
192
193			dnl# find wtmp
194	sf-exg	1.24	PT_FIND_FILE([wtmp], [WTMP_FILE], [_PATH_WTMP],
195			["/var/log/wtmp", "/var/adm/wtmp", "/etc/wtmp", "/usr/etc/wtmp", "/usr/adm/wtmp"],[
196	ayin	1.1	#include <sys/types.h>
197			#ifdef HAVE_UTMP_H
198			#include <utmp.h>
199			#endif
200	sf-exg	1.24	])
201	ayin	1.1	dnl# --------------------------------------------------------------------------
202
203			dnl# find wtmpx
204	sf-exg	1.24	PT_FIND_FILE([wtmpx], [WTMPX_FILE], [_PATH_WTMPX],
205			["/var/log/wtmpx", "/var/adm/wtmpx"],[
206	ayin	1.1	#ifdef HAVE_UTMPX_H
207			#include <utmpx.h>
208			#endif
209	sf-exg	1.24	])
210	ayin	1.1	dnl# --------------------------------------------------------------------------
211
212			dnl# find lastlog
213	sf-exg	1.24	PT_FIND_FILE([lastlog], [LASTLOG_FILE], [_PATH_LASTLOG],
214			["/var/log/lastlog"],[
215	ayin	1.1	#include <sys/types.h>
216	sf-exg	1.23	#ifdef HAVE_UTMP_H
217	ayin	1.1	#include <utmp.h>
218			#endif
219			#ifdef HAVE_LASTLOG_H
220			#include <lastlog.h>
221			#endif
222	sf-exg	1.24	])
223	ayin	1.1	dnl# --------------------------------------------------------------------------
224
225			dnl# find lastlogx
226	sf-exg	1.24	PT_FIND_FILE([lastlogx], [LASTLOGX_FILE], [_PATH_LASTLOGX],
227			["/var/log/lastlogx", "/var/adm/lastlogx"],[
228	ayin	1.1	#ifdef HAVE_UTMPX_H
229			#include <utmpx.h>
230			#endif
231	sf-exg	1.24	])
232	ayin	1.1	])
233
234			AC_DEFUN([SCM_RIGHTS_CHECK],
235			[
236	sf-exg	1.18	AC_CACHE_CHECK(for unix-compliant filehandle passing ability, pt_cv_can_pass_fds,
237	ayin	1.16	[AC_LINK_IFELSE([AC_LANG_PROGRAM([[
238	root	1.6	#include <cstddef> // broken bsds (is that redundant?) need this
239	ayin	1.1	#include <sys/types.h>
240			#include <sys/socket.h>
241			#include <sys/uio.h>
242	ayin	1.16	]], [[
243	ayin	1.1	{
244			msghdr msg;
245			iovec iov;
246			char buf [100];
247			char data = 0;
248
249			iov.iov_base = &data;
250			iov.iov_len = 1;
251
252			msg.msg_iov = &iov;
253			msg.msg_iovlen = 1;
254			msg.msg_control = buf;
255			msg.msg_controllen = sizeof buf;
256
257			cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
258			cmsg->cmsg_level = SOL_SOCKET;
259			cmsg->cmsg_type = SCM_RIGHTS;
260			cmsg->cmsg_len = 100;
261
262			(int )CMSG_DATA (cmsg) = 5;
263
264			return sendmsg (3, &msg, 0);
265			}
266	sf-exg	1.18	]])],[pt_cv_can_pass_fds=yes],[pt_cv_can_pass_fds=no])])
267			if test x$pt_cv_can_pass_fds = xyes; then
268	ayin	1.1	AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing)
269			else
270			AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability])
271			fi
272			])
273	ayin	1.3
274			AC_DEFUN([TTY_GROUP_CHECK],
275			[
276	sf-exg	1.18	AC_CACHE_CHECK([for tty group], pt_cv_tty_group,
277	ayin	1.16	[AC_RUN_IFELSE([AC_LANG_SOURCE([[
278	ayin	1.3	#include <sys/types.h>
279			#include <sys/stat.h>
280			#include <unistd.h>
281			#include <grp.h>
282
283	sf-exg	1.22	int main()
284	ayin	1.3	{
285			struct stat st;
286			struct group *gr;
287			char *tty;
288			gr = getgrnam("tty");
289			tty = ttyname(0);
290			if (gr != 0
291			&& tty != 0
292			&& (stat(tty, &st)) == 0
293			&& st.st_gid == gr->gr_gid)
294			return 0;
295			else
296			return 1;
297	sf-exg	1.18	}]])],[pt_cv_tty_group=yes],[pt_cv_tty_group=no],[pt_cv_tty_group=no])])
298			if test x$pt_cv_tty_group = xyes; then
299	ayin	1.3	AC_DEFINE(TTY_GID_SUPPORT, 1, "")
300			fi])
301