libptytty/ptytty.m4

AC_DEFUN([PT_FIND_FILE],
[AC_CACHE_CHECK(for a fallback location of $1, pt_cv_path_$1, [
if test "$cross_compiling" != yes; then
  for file in $3; do
    if test -f "$file"; then
      pt_cv_path_$1=$file
      break
    fi
  done
fi])
if test x$pt_cv_path_$1 != x; then
  AC_DEFINE_UNQUOTED($2, "$pt_cv_path_$1", Define to a fallback location of $1)
elif test "$cross_compiling" = yes; then
  AC_MSG_WARN(Define $2 in config.h manually)
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)

case $host in
   *-*-solaris*)
      AC_DEFINE(__EXTENSIONS__, 1, Enable declarations in utmp.h on Solaris when the XPG4v2 namespace is active)
      ;;
esac

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>
])
) 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], [PT_UTMP_FILE],
["/var/run/utmp" "/var/adm/utmp" "/etc/utmp" "/usr/etc/utmp" "/usr/adm/utmp"])

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

dnl# find wtmp
PT_FIND_FILE([wtmp], [PT_WTMP_FILE],
["/var/log/wtmp" "/var/adm/wtmp" "/etc/wtmp" "/usr/etc/wtmp" "/usr/adm/wtmp"])
dnl# --------------------------------------------------------------------------

dnl# find wtmpx
PT_FIND_FILE([wtmpx], [PT_WTMPX_FILE],
["/var/log/wtmpx" "/var/adm/wtmpx"])
dnl# --------------------------------------------------------------------------

dnl# find lastlog
PT_FIND_FILE([lastlog], [PT_LASTLOG_FILE],
["/var/log/lastlog" "/var/adm/lastlog"])
dnl# --------------------------------------------------------------------------

dnl# find lastlogx
PT_FIND_FILE([lastlogx], [PT_LASTLOGX_FILE],
["/var/log/lastlogx" "/var/adm/lastlogx"])
])

AC_DEFUN([SCM_RIGHTS_CHECK],
[
case $host in
   *-*-solaris*)
      AC_DEFINE(_XOPEN_SOURCE, 500, Enable declarations of msg_control and msg_controllen on Solaris)
      AC_SEARCH_LIBS(sendmsg, socket)
      ;;
esac

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:	1.35
Committed:	Thu Jan 19 12:16:33 2012 UTC (12 years, 4 months ago) by sf-exg
Branch:	MAIN
Changes since 1.34:	+0 -3 lines
Log Message:	Remove obsolete comments.
#	User	Rev	Content
1	sf-exg	1.24	AC_DEFUN([PT_FIND_FILE],
2	sf-exg	1.31	[AC_CACHE_CHECK(for a fallback location of $1, pt_cv_path_$1, [
3			if test "$cross_compiling" != yes; then
4			for file in $3; do
5			if test -f "$file"; then
6			pt_cv_path_$1=$file
7			break
8			fi
9			done
10			fi])
11	sf-exg	1.24	if test x$pt_cv_path_$1 != x; then
12	sf-exg	1.31	AC_DEFINE_UNQUOTED($2, "$pt_cv_path_$1", Define to a fallback location of $1)
13			elif test "$cross_compiling" = yes; then
14			AC_MSG_WARN(Define $2 in config.h manually)
15	sf-exg	1.24	fi])
16
17	ayin	1.1	AC_DEFUN([PTY_CHECK],
18			[
19			AC_CHECK_HEADERS( \
20			pty.h \
21			util.h \
22			libutil.h \
23			sys/ioctl.h \
24			sys/stropts.h \
25	root	1.17	stropts.h \
26	ayin	1.1	)
27
28			AC_CHECK_FUNCS( \
29			revoke \
30			_getpty \
31			getpt \
32			posix_openpt \
33			isastream \
34	root	1.7	setuid \
35			seteuid \
36			setreuid \
37			setresuid \
38	ayin	1.1	)
39
40	sf-exg	1.29	AC_MSG_CHECKING(for UNIX98 ptys)
41			AC_LINK_IFELSE(
42			[AC_LANG_PROGRAM(
43			[[#include <stdlib.h>]],
44			[[grantpt(0);unlockpt(0);ptsname(0);]])],
45			[unix98_pty=yes
46			AC_DEFINE(UNIX98_PTY, 1, "")
47			AC_MSG_RESULT(yes)],
48			[AC_MSG_RESULT(no)])
49	ayin	1.1
50			if test -z "$unix98_pty"; then
51	sf-exg	1.21	AC_SEARCH_LIBS(openpty, util, AC_DEFINE(HAVE_OPENPTY, 1, ""))
52	ayin	1.1	fi
53			])
54
55			AC_DEFUN([UTMP_CHECK],
56			[
57	ayin	1.5	support_utmp=yes
58			support_wtmp=yes
59			support_lastlog=yes
60
61	ayin	1.4	AC_ARG_ENABLE(utmp,
62	ayin	1.11	[AS_HELP_STRING([--enable-utmp],[enable utmp (utmpx) support])],
63	ayin	1.4	[if test x$enableval = xyes -o x$enableval = xno; then
64			support_utmp=$enableval
65			fi])
66
67			AC_ARG_ENABLE(wtmp,
68	ayin	1.11	[AS_HELP_STRING([--enable-wtmp],[enable wtmp (wtmpx) support (requires --enable-utmp)])],
69	ayin	1.4	[if test x$enableval = xyes -o x$enableval = xno; then
70			support_wtmp=$enableval
71			fi])
72
73			AC_ARG_ENABLE(lastlog,
74	ayin	1.11	[AS_HELP_STRING([--enable-lastlog],[enable lastlog support (requires --enable-utmp)])],
75	ayin	1.4	[if test x$enableval = xyes -o x$enableval = xno; then
76			support_lastlog=$enableval
77			fi])
78
79			if test x$support_utmp = xyes; then
80			AC_DEFINE(UTMP_SUPPORT, 1, Define if you want to have utmp/utmpx support)
81			fi
82			if test x$support_wtmp = xyes; then
83			AC_DEFINE(WTMP_SUPPORT, 1, Define if you want to have wtmp support when utmp/utmpx is enabled)
84			fi
85			if test x$support_lastlog = xyes; then
86			AC_DEFINE(LASTLOG_SUPPORT, 1, Define if you want to have lastlog support when utmp/utmpx is enabled)
87			fi
88
89	ayin	1.1	AC_CHECK_FUNCS( \
90			updwtmp \
91			updwtmpx \
92	ayin	1.12	updlastlogx \
93	ayin	1.1	)
94
95	ayin	1.15	AC_CHECK_HEADERS(lastlog.h)
96	ayin	1.1
97	sf-exg	1.34	case $host in
98			--solaris*)
99			AC_DEFINE(__EXTENSIONS__, 1, Enable declarations in utmp.h on Solaris when the XPG4v2 namespace is active)
100			;;
101			esac
102
103	ayin	1.1	dnl# --------------------------------------------------------------------------
104			dnl# DO ALL UTMP AND WTMP CHECKING
105			dnl# --------------------------------------------------------------------------
106			dnl# check for host field in utmp structure
107
108			dnl# --------------------------------------------
109	ayin	1.15	AC_CHECK_HEADERS(utmp.h,
110	sf-exg	1.26	AC_CHECK_TYPES([struct utmp], [], [], [
111			#include <sys/types.h>
112			#include <utmp.h>
113			])
114	ayin	1.1
115	sf-exg	1.26	AC_CHECK_MEMBER([struct utmp.ut_host],
116			[AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host)], [], [
117			#include <sys/types.h>
118			#include <utmp.h>
119			])
120	ayin	1.1
121	sf-exg	1.26	AC_CHECK_MEMBER([struct utmp.ut_pid],
122			[AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid)], [], [
123			#include <sys/types.h>
124			#include <utmp.h>
125			])
126	ayin	1.15	) dnl# AC_CHECK_HEADERS(utmp.h
127	ayin	1.1
128			dnl# --------------------------------------------
129
130	ayin	1.15	AC_CHECK_HEADERS(utmpx.h,
131	sf-exg	1.26	AC_CHECK_TYPES([struct utmpx], [], [], [
132			#include <sys/types.h>
133			#include <utmpx.h>
134			])
135	ayin	1.1
136	sf-exg	1.26	AC_CHECK_MEMBER([struct utmpx.ut_host],
137			[AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host)], [], [
138			#include <sys/types.h>
139			#include <utmpx.h>
140			])
141	ayin	1.15	) dnl# AC_CHECK_HEADERS(utmpx.h
142	ayin	1.1
143			dnl# --------------------------------------------------------------------------
144			dnl# check for struct lastlog
145	sf-exg	1.26	AC_CHECK_TYPES([struct lastlog], [], [], [
146			#include <sys/types.h>
147	ayin	1.1	#include <utmp.h>
148			#ifdef HAVE_LASTLOG_H
149			#include <lastlog.h>
150			#endif
151	sf-exg	1.26	])
152	ayin	1.1
153			dnl# check for struct lastlogx
154	sf-exg	1.26	AC_CHECK_TYPES([struct lastlogx], [], [], [
155			#include <sys/types.h>
156	ayin	1.1	#include <utmpx.h>
157			#ifdef HAVE_LASTLOG_H
158			#include <lastlog.h>
159			#endif
160	sf-exg	1.26	])
161	ayin	1.1
162			dnl# --------------------------------------------------------------------------
163			dnl# FIND FILES
164			dnl# --------------------------------------------------------------------------
165
166			dnl# find utmp
167	sf-exg	1.31	PT_FIND_FILE([utmp], [PT_UTMP_FILE],
168			["/var/run/utmp" "/var/adm/utmp" "/etc/utmp" "/usr/etc/utmp" "/usr/adm/utmp"])
169	ayin	1.1
170			dnl# --------------------------------------------------------------------------
171
172			dnl# find wtmp
173	sf-exg	1.31	PT_FIND_FILE([wtmp], [PT_WTMP_FILE],
174			["/var/log/wtmp" "/var/adm/wtmp" "/etc/wtmp" "/usr/etc/wtmp" "/usr/adm/wtmp"])
175	ayin	1.1	dnl# --------------------------------------------------------------------------
176
177			dnl# find wtmpx
178	sf-exg	1.31	PT_FIND_FILE([wtmpx], [PT_WTMPX_FILE],
179			["/var/log/wtmpx" "/var/adm/wtmpx"])
180	ayin	1.1	dnl# --------------------------------------------------------------------------
181
182			dnl# find lastlog
183	sf-exg	1.31	PT_FIND_FILE([lastlog], [PT_LASTLOG_FILE],
184	sf-exg	1.33	["/var/log/lastlog" "/var/adm/lastlog"])
185	ayin	1.1	dnl# --------------------------------------------------------------------------
186
187			dnl# find lastlogx
188	sf-exg	1.31	PT_FIND_FILE([lastlogx], [PT_LASTLOGX_FILE],
189			["/var/log/lastlogx" "/var/adm/lastlogx"])
190	ayin	1.1	])
191
192			AC_DEFUN([SCM_RIGHTS_CHECK],
193			[
194	sf-exg	1.34	case $host in
195			--solaris*)
196			AC_DEFINE(_XOPEN_SOURCE, 500, Enable declarations of msg_control and msg_controllen on Solaris)
197			AC_SEARCH_LIBS(sendmsg, socket)
198			;;
199			esac
200
201	sf-exg	1.18	AC_CACHE_CHECK(for unix-compliant filehandle passing ability, pt_cv_can_pass_fds,
202	ayin	1.16	[AC_LINK_IFELSE([AC_LANG_PROGRAM([[
203	root	1.6	#include <cstddef> // broken bsds (is that redundant?) need this
204	ayin	1.1	#include <sys/types.h>
205			#include <sys/socket.h>
206			#include <sys/uio.h>
207	ayin	1.16	]], [[
208	ayin	1.1	{
209			msghdr msg;
210			iovec iov;
211			char buf [100];
212			char data = 0;
213
214			iov.iov_base = &data;
215			iov.iov_len = 1;
216
217			msg.msg_iov = &iov;
218			msg.msg_iovlen = 1;
219			msg.msg_control = buf;
220			msg.msg_controllen = sizeof buf;
221
222			cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
223			cmsg->cmsg_level = SOL_SOCKET;
224			cmsg->cmsg_type = SCM_RIGHTS;
225			cmsg->cmsg_len = 100;
226
227			(int )CMSG_DATA (cmsg) = 5;
228
229			return sendmsg (3, &msg, 0);
230			}
231	sf-exg	1.18	]])],[pt_cv_can_pass_fds=yes],[pt_cv_can_pass_fds=no])])
232			if test x$pt_cv_can_pass_fds = xyes; then
233	ayin	1.1	AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing)
234			else
235			AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability])
236			fi
237			])
238	ayin	1.3
239			AC_DEFUN([TTY_GROUP_CHECK],
240			[
241	sf-exg	1.18	AC_CACHE_CHECK([for tty group], pt_cv_tty_group,
242	ayin	1.16	[AC_RUN_IFELSE([AC_LANG_SOURCE([[
243	ayin	1.3	#include <sys/types.h>
244			#include <sys/stat.h>
245			#include <unistd.h>
246			#include <grp.h>
247
248	sf-exg	1.22	int main()
249	ayin	1.3	{
250			struct stat st;
251			struct group *gr;
252			char *tty;
253			gr = getgrnam("tty");
254			tty = ttyname(0);
255			if (gr != 0
256			&& tty != 0
257			&& (stat(tty, &st)) == 0
258			&& st.st_gid == gr->gr_gid)
259			return 0;
260			else
261			return 1;
262	sf-exg	1.18	}]])],[pt_cv_tty_group=yes],[pt_cv_tty_group=no],[pt_cv_tty_group=no])])
263			if test x$pt_cv_tty_group = xyes; then
264	ayin	1.3	AC_DEFINE(TTY_GID_SUPPORT, 1, "")
265			fi])
266