libptytty/ptytty.m4

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

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

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

have_clone=no

AC_MSG_CHECKING(for /dev/ptym/clone)
if test -e /dev/ptym/clone; then
  AC_MSG_RESULT(yes)
  AC_DEFINE(HAVE_DEV_CLONE, 1, [Define to 1 if you have /dev/ptym/clone])
  AC_DEFINE(CLONE_DEVICE, "/dev/ptym/clone", [clone device filename])
  have_clone=yes
else
  AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING(for /dev/ptc)
if test -e /dev/ptc; then
  AC_MSG_RESULT(yes)
  AC_DEFINE(HAVE_DEV_PTC, 1, [Define to 1 if you have /dev/ptc])
  AC_DEFINE(CLONE_DEVICE, "/dev/ptc", [clone device filename])
  have_clone=yes
else
  AC_MSG_RESULT(no)
fi

case $host in
  *-*-cygwin*)
    have_clone=yes
    AC_DEFINE(CLONE_DEVICE, "/dev/ptmx", [clone device filename])
    ;;
  *)
    AC_MSG_CHECKING(for /dev/ptmx)
    if test -e /dev/ptmx; then
      AC_MSG_RESULT(yes)
      AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if you have /dev/ptmx])
      AC_DEFINE(CLONE_DEVICE, "/dev/ptmx", [clone device filename])
      have_clone=yes
    else
      AC_MSG_RESULT(no)
    fi
    ;;
esac

if test x$ac_cv_func_getpt = xyes -o x$ac_cv_func_posix_openpt = xyes -o x$have_clone = xyes; then
  AC_MSG_CHECKING(for UNIX98 ptys)
  AC_TRY_LINK([#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)])
fi

if test -z "$unix98_pty"; then
  AC_CHECK_FUNCS(openpty, [], [AC_CHECK_LIB(util, openpty, [AC_DEFINE(HAVE_OPENPTY) LIBS="$LIBS -lutil"])])
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( \
        ttyslot \
        updwtmp \
        updwtmpx \
        updlastlogx \
)

AC_CHECK_HEADERS( \
        utmp.h \
        utmpx.h \
        lastlog.h \
)

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

dnl# --------------------------------------------
AC_CHECK_HEADER(utmp.h,
[AC_CACHE_CHECK([for struct utmp], struct_utmp,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <utmp.h>]], [[struct utmp ut;]])],[struct_utmp=yes],[struct_utmp=no])])
if test x$struct_utmp = xyes; then
  AC_DEFINE(HAVE_STRUCT_UTMP, 1, Define if utmp.h has struct utmp)
fi
]

AC_CACHE_CHECK(for ut_host in utmp struct, struct_utmp_host,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <utmp.h>]], [[struct utmp ut; ut.ut_host;]])],[struct_utmp_host=yes],[struct_utmp_host=no])])
if test x$struct_utmp_host = xyes; then
  AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host)
fi

AC_CACHE_CHECK(for ut_pid in utmp struct, struct_utmp_pid,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <utmp.h>]], [[struct utmp ut; ut.ut_pid;]])],[struct_utmp_pid=yes],[struct_utmp_pid=no])])
if test x$struct_utmp_pid = xyes; then
  AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid)
fi
) dnl# AC_CHECK_HEADER(utmp.h

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

AC_CHECK_HEADER(utmpx.h,
[AC_CACHE_CHECK([for struct utmpx], struct_utmpx,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <utmpx.h>]], [[struct utmpx ut;]])],[struct_utmpx=yes],[struct_utmpx=no])])
if test x$struct_utmpx = xyes; then
  AC_DEFINE(HAVE_STRUCT_UTMPX, 1, Define if utmpx.h has struct utmpx)
fi
]

AC_CACHE_CHECK(for host in utmpx struct, struct_utmpx_host,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <utmpx.h>]], [[struct utmpx utx; utx.ut_host;]])],[struct_utmpx_host=yes],[struct_utmpx_host=no])])
if test x$struct_utmpx_host = xyes; then
  AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host)
fi

AC_CACHE_CHECK(for session in utmpx struct, struct_utmpx_session,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <utmpx.h>],
[struct utmpx utx; utx.ut_session;],
struct_utmpx_session=yes, struct_utmpx_session=no)])
if test x$struct_utmpx_session = xyes; then
  AC_DEFINE(HAVE_UTMPX_SESSION, 1, Define if struct utmpx contains ut_session)
fi
) dnl# AC_CHECK_HEADER(utmpx.h

dnl# --------------------------------------------------------------------------
dnl# check for struct lastlog
AC_CACHE_CHECK(for struct lastlog, struct_lastlog,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <utmp.h>
#ifdef HAVE_LASTLOG_H
#include <lastlog.h>
#endif
]], [[struct lastlog ll;]])],[struct_lastlog=yes],[struct_lastlog=no])])
if test x$struct_lastlog = xyes; then
  AC_DEFINE(HAVE_STRUCT_LASTLOG, 1, Define if utmp.h or lastlog.h has struct lastlog)
fi

dnl# check for struct lastlogx
AC_CACHE_CHECK(for struct lastlogx, struct_lastlogx,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <utmpx.h>
#ifdef HAVE_LASTLOG_H
#include <lastlog.h>
#endif
]], [[struct lastlogx ll;]])],[struct_lastlogx=yes],[struct_lastlogx=no])])
if test x$struct_lastlogx = xyes; then
  AC_DEFINE(HAVE_STRUCT_LASTLOGX, 1, Define if utmpx.h or lastlog.h has struct lastlogx)
fi

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

dnl# find utmp
AC_CACHE_CHECK(where utmp is located, path_utmp,
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <utmp.h>
#include <errno.h>
main()
{
    char **u, *utmplist[] = {
    "/var/run/utmp", "/var/adm/utmp", "/etc/utmp", "/usr/etc/utmp", "/usr/adm/utmp", NULL };
    FILE *a, *f=fopen("conftestval", "w");
    if (!f) exit(1);
#ifdef UTMP_FILE
    fprintf(f, "%s\n", UTMP_FILE);
    exit(0);
#endif
#ifdef _PATH_UTMP
    fprintf(f, "%s\n", _PATH_UTMP);
    exit(0);
#endif
    for (u = utmplist; *u; u++) {
        if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
            fprintf(f, "%s\n", *u);
            exit(0);
        }
    }
    exit(0);
}]])],[path_utmp=`cat conftestval`],[path_utmp=],[dnl
  AC_MSG_WARN(Define UTMP_FILE in config.h manually)])])
if test x$path_utmp != x; then
  AC_DEFINE_UNQUOTED(UTMP_FILE, "$path_utmp", Define location of utmp)
fi

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

dnl# find utmpx - if a utmp file exists at the same location and is more than
dnl# a day newer, then dump the utmpx.  People leave lots of junk around.
AC_CACHE_CHECK(where utmpx is located, path_utmpx,
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <utmpx.h>
#include <errno.h>
#include <sys/stat.h>
#ifdef HAVE_STRING_H
#include <string.h>
#endif
main()
{
    char **u, *p, *utmplist[] = {
#ifdef UTMPX_FILE
        UTMPX_FILE,
#endif
#ifdef _PATH_UTMPX
        _PATH_UTMPX,
#endif
    "/var/adm/utmpx", "/etc/utmpx", NULL };
    FILE *a, *f=fopen("conftestval", "w");
    struct stat statu, statux;
    if (!f) exit(1);
    for (u = utmplist; *u; u++) {
        if ((a = fopen(*u, "r")) != NULL || errno == EACCES) {
            if (stat(*u, &statux) < 0)
                continue;
            p = strdup(*u);
            p[strlen(p) - 1] = '\0';
            if (stat(p, &statu) >= 0
                && (statu.st_mtime - statux.st_mtime > 86400))
                continue;
            fprintf(f, "%s\n", *u);
            exit(0);
        }
    }
    exit(0);
}]])],[path_utmpx=`cat conftestval`],[path_utmpx=],[dnl
  AC_MSG_WARN(Define UTMPX_FILE in config.h manually)])])
if test x$path_utmpx != x; then
  AC_DEFINE_UNQUOTED(UTMPX_FILE, "$path_utmpx", Define location of utmpx)
fi

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

dnl# find wtmp
AC_CACHE_CHECK(where wtmp is located, path_wtmp,
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#ifdef HAVE_UTMP_H
#include <utmp.h>
#endif
#include <errno.h>
main()
{
    char **w, *wtmplist[] = {
    "/var/log/wtmp", "/var/adm/wtmp", "/etc/wtmp", "/usr/etc/wtmp", "/usr/adm/wtmp", NULL };
    FILE *a, *f=fopen("conftestval", "w");
    if (!f) exit(1);
#ifdef WTMP_FILE
    fprintf(f, "%s\n", WTMP_FILE);
    exit(0);
#endif
#ifdef _PATH_WTMP
    fprintf(f, "%s\n", _PATH_WTMP);
    exit(0);
#endif
    for (w = wtmplist; *w; w++) {
        if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
            fprintf(f, "%s\n", *w);
            exit(0);
        }
    }
    exit(0);
}]])],[path_wtmp=`cat conftestval`],[path_wtmp=],[dnl
  AC_MSG_WARN(Define WTMP_FILE in config.h manually)])])
if test x$path_wtmp != x; then
  AC_DEFINE_UNQUOTED(WTMP_FILE, "$path_wtmp", Define location of wtmp)
fi
dnl# --------------------------------------------------------------------------

dnl# find wtmpx
AC_CACHE_CHECK(where wtmpx is located, path_wtmpx,
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UTMPX_H
#include <utmpx.h>
#endif
#include <errno.h>
main()
{
    char **w, *wtmplist[] = {
    "/var/log/wtmpx", "/var/adm/wtmpx", NULL };
    FILE *a, *f=fopen("conftestval", "w");
    if (!f) exit(1);
#ifdef WTMPX_FILE
    fprintf(f, "%s\n", WTMPX_FILE);
    exit(0);
#endif
#ifdef _PATH_WTMPX
    fprintf(f, "%s\n", _PATH_WTMPX);
    exit(0);
#endif
    for (w = wtmplist; *w; w++) {
        if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
            fprintf(f, "%s\n", *w);
            exit(0);
        }
    }
    exit(0);
}]])],[path_wtmpx=`cat conftestval`],[path_wtmpx=],[dnl
  AC_MSG_WARN(Define WTMPX_FILE in config.h manually)])])
if test x$path_wtmpx != x; then
  AC_DEFINE_UNQUOTED(WTMPX_FILE, "$path_wtmpx", Define location of wtmpx)
fi
dnl# --------------------------------------------------------------------------

dnl# find lastlog
AC_CACHE_CHECK(where lastlog is located, path_lastlog,
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#ifdef HAVE_UTMPX_H
#include <utmpx.h>
#elif defined(HAVE_UTMP_H)
#include <utmp.h>
#endif
#ifdef HAVE_LASTLOG_H
#include <lastlog.h>
#endif
#include <errno.h>
main()
{
    char **w, *lastloglist[] = { "/var/log/lastlog", NULL };
    FILE *a, *f=fopen("conftestval", "w");
    if (!f) exit(1);
#ifdef LASTLOG_FILE
    fprintf(f, "%s\n", LASTLOG_FILE);
    exit(0);
#endif
#ifdef _PATH_LASTLOG
    fprintf(f, "%s\n", _PATH_LASTLOG);
    exit(0);
#endif
    for (w = lastloglist; *w; w++) {
        if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
            fprintf(f, "%s\n", *w);
            exit(0);
        }
    }
    exit(0);
}]])],[path_lastlog=`cat conftestval`],[path_lastlog=],[dnl
  AC_MSG_WARN(Define LASTLOG_FILE in config.h manually)])])
if test x$path_lastlog != x; then
  AC_DEFINE_UNQUOTED(LASTLOG_FILE, "$path_lastlog", Define location of lastlog)
fi
dnl# --------------------------------------------------------------------------

dnl# find lastlogx
AC_CACHE_CHECK(where lastlogx is located, path_lastlogx,
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UTMPX_H
#include <utmpx.h>
#endif
#include <errno.h>
main()
{
    char **w, *wtmplist[] = { "/var/log/lastlogx", "/var/adm/lastlogx", NULL };
    FILE *a, *f=fopen("conftestval", "w");
    if (!f) exit(1);
#ifdef LASTLOGX_FILE
    fprintf(f, "%s\n", LASTLOGX_FILE);
    exit(0);
#endif
#ifdef _PATH_LASTLOGX
    fprintf(f, "%s\n", _PATH_LASTLOGX);
    exit(0);
#endif
    for (w = wtmplist; *w; w++) {
        if ((a = fopen(*w, "r")) != NULL || errno == EACCES) {
            fprintf(f, "%s\n", *w);
            exit(0);
        }
    }
    exit(0);
}]])],[path_lastlogx=`cat conftestval`],[path_lastlogx=],[dnl
  AC_MSG_WARN(Define LASTLOGX_FILE in config.h manually)])])
if test x$path_lastlogx != x; then
  AC_DEFINE_UNQUOTED(LASTLOGX_FILE, "$path_lastlogx", Define location of lastlogx)
fi
])

AC_DEFUN([SCM_RIGHTS_CHECK],
[
AC_CACHE_CHECK(for unix-compliant filehandle passing ability, can_pass_fds,
[AC_TRY_LINK([
#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);
}
],[can_pass_fds=yes],[can_pass_fds=no])])
if test x$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], tty_group,
[AC_TRY_RUN([
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <grp.h>

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;
}],
[tty_group=yes],[tty_group=no],[tty_group=no])])
if test x$tty_group = xyes; then
  AC_DEFINE(TTY_GID_SUPPORT, 1, "")
fi])

Revision:	1.13
Committed:	Sun Nov 4 10:16:58 2007 UTC (16 years, 6 months ago) by ayin
Branch:	MAIN
Changes since 1.12:	+0 -3 lines
Log Message:	Detect if LASTLOG_FILE is a directory or a file at runtime.
#	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	ayin	1.1	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			)
13
14			AC_CHECK_FUNCS( \
15			revoke \
16			_getpty \
17			getpt \
18			posix_openpt \
19			isastream \
20	root	1.7	setuid \
21			seteuid \
22			setreuid \
23			setresuid \
24	ayin	1.1	)
25
26			have_clone=no
27
28			AC_MSG_CHECKING(for /dev/ptym/clone)
29			if test -e /dev/ptym/clone; then
30			AC_MSG_RESULT(yes)
31			AC_DEFINE(HAVE_DEV_CLONE, 1, [Define to 1 if you have /dev/ptym/clone])
32			AC_DEFINE(CLONE_DEVICE, "/dev/ptym/clone", [clone device filename])
33			have_clone=yes
34			else
35			AC_MSG_RESULT(no)
36			fi
37
38			AC_MSG_CHECKING(for /dev/ptc)
39			if test -e /dev/ptc; then
40			AC_MSG_RESULT(yes)
41			AC_DEFINE(HAVE_DEV_PTC, 1, [Define to 1 if you have /dev/ptc])
42			AC_DEFINE(CLONE_DEVICE, "/dev/ptc", [clone device filename])
43			have_clone=yes
44			else
45			AC_MSG_RESULT(no)
46			fi
47
48			case $host in
49			--cygwin*)
50			have_clone=yes
51			AC_DEFINE(CLONE_DEVICE, "/dev/ptmx", [clone device filename])
52			;;
53			*)
54			AC_MSG_CHECKING(for /dev/ptmx)
55			if test -e /dev/ptmx; then
56			AC_MSG_RESULT(yes)
57			AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if you have /dev/ptmx])
58			AC_DEFINE(CLONE_DEVICE, "/dev/ptmx", [clone device filename])
59			have_clone=yes
60			else
61			AC_MSG_RESULT(no)
62			fi
63			;;
64			esac
65
66			if test x$ac_cv_func_getpt = xyes -o x$ac_cv_func_posix_openpt = xyes -o x$have_clone = xyes; then
67			AC_MSG_CHECKING(for UNIX98 ptys)
68			AC_TRY_LINK([#include <stdlib.h>],
69			[grantpt(0);unlockpt(0);ptsname(0);],
70			[unix98_pty=yes
71			AC_DEFINE(UNIX98_PTY, 1, "")
72			AC_MSG_RESULT(yes)],
73			[AC_MSG_RESULT(no)])
74			fi
75
76			if test -z "$unix98_pty"; then
77			AC_CHECK_FUNCS(openpty, [], [AC_CHECK_LIB(util, openpty, [AC_DEFINE(HAVE_OPENPTY) LIBS="$LIBS -lutil"])])
78			fi
79			])
80
81			AC_DEFUN([UTMP_CHECK],
82			[
83	ayin	1.5	support_utmp=yes
84			support_wtmp=yes
85			support_lastlog=yes
86
87	ayin	1.4	AC_ARG_ENABLE(utmp,
88	ayin	1.11	[AS_HELP_STRING([--enable-utmp],[enable utmp (utmpx) support])],
89	ayin	1.4	[if test x$enableval = xyes -o x$enableval = xno; then
90			support_utmp=$enableval
91			fi])
92
93			AC_ARG_ENABLE(wtmp,
94	ayin	1.11	[AS_HELP_STRING([--enable-wtmp],[enable wtmp (wtmpx) support (requires --enable-utmp)])],
95	ayin	1.4	[if test x$enableval = xyes -o x$enableval = xno; then
96			support_wtmp=$enableval
97			fi])
98
99			AC_ARG_ENABLE(lastlog,
100	ayin	1.11	[AS_HELP_STRING([--enable-lastlog],[enable lastlog support (requires --enable-utmp)])],
101	ayin	1.4	[if test x$enableval = xyes -o x$enableval = xno; then
102			support_lastlog=$enableval
103			fi])
104
105			if test x$support_utmp = xyes; then
106			AC_DEFINE(UTMP_SUPPORT, 1, Define if you want to have utmp/utmpx support)
107			fi
108			if test x$support_wtmp = xyes; then
109			AC_DEFINE(WTMP_SUPPORT, 1, Define if you want to have wtmp support when utmp/utmpx is enabled)
110			fi
111			if test x$support_lastlog = xyes; then
112			AC_DEFINE(LASTLOG_SUPPORT, 1, Define if you want to have lastlog support when utmp/utmpx is enabled)
113			fi
114
115	ayin	1.1	AC_CHECK_FUNCS( \
116			ttyslot \
117			updwtmp \
118			updwtmpx \
119	ayin	1.12	updlastlogx \
120	ayin	1.1	)
121
122			AC_CHECK_HEADERS( \
123			utmp.h \
124			utmpx.h \
125			lastlog.h \
126			)
127
128			dnl# --------------------------------------------------------------------------
129			dnl# DO ALL UTMP AND WTMP CHECKING
130			dnl# --------------------------------------------------------------------------
131			dnl# check for host field in utmp structure
132
133			dnl# --------------------------------------------
134			AC_CHECK_HEADER(utmp.h,
135			[AC_CACHE_CHECK([for struct utmp], struct_utmp,
136			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
137			#include <utmp.h>]], [[struct utmp ut;]])],[struct_utmp=yes],[struct_utmp=no])])
138			if test x$struct_utmp = xyes; then
139			AC_DEFINE(HAVE_STRUCT_UTMP, 1, Define if utmp.h has struct utmp)
140			fi
141			]
142
143			AC_CACHE_CHECK(for ut_host in utmp struct, struct_utmp_host,
144			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
145			#include <utmp.h>]], [[struct utmp ut; ut.ut_host;]])],[struct_utmp_host=yes],[struct_utmp_host=no])])
146			if test x$struct_utmp_host = xyes; then
147			AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host)
148			fi
149
150			AC_CACHE_CHECK(for ut_pid in utmp struct, struct_utmp_pid,
151			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
152			#include <utmp.h>]], [[struct utmp ut; ut.ut_pid;]])],[struct_utmp_pid=yes],[struct_utmp_pid=no])])
153			if test x$struct_utmp_pid = xyes; then
154			AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid)
155			fi
156			) dnl# AC_CHECK_HEADER(utmp.h
157
158			dnl# --------------------------------------------
159
160			AC_CHECK_HEADER(utmpx.h,
161			[AC_CACHE_CHECK([for struct utmpx], struct_utmpx,
162			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
163			#include <utmpx.h>]], [[struct utmpx ut;]])],[struct_utmpx=yes],[struct_utmpx=no])])
164			if test x$struct_utmpx = xyes; then
165			AC_DEFINE(HAVE_STRUCT_UTMPX, 1, Define if utmpx.h has struct utmpx)
166			fi
167			]
168
169			AC_CACHE_CHECK(for host in utmpx struct, struct_utmpx_host,
170			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
171			#include <utmpx.h>]], [[struct utmpx utx; utx.ut_host;]])],[struct_utmpx_host=yes],[struct_utmpx_host=no])])
172			if test x$struct_utmpx_host = xyes; then
173			AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host)
174			fi
175
176			AC_CACHE_CHECK(for session in utmpx struct, struct_utmpx_session,
177			[AC_TRY_COMPILE([#include <sys/types.h>
178			#include <utmpx.h>],
179			[struct utmpx utx; utx.ut_session;],
180			struct_utmpx_session=yes, struct_utmpx_session=no)])
181			if test x$struct_utmpx_session = xyes; then
182			AC_DEFINE(HAVE_UTMPX_SESSION, 1, Define if struct utmpx contains ut_session)
183			fi
184			) dnl# AC_CHECK_HEADER(utmpx.h
185
186			dnl# --------------------------------------------------------------------------
187			dnl# check for struct lastlog
188			AC_CACHE_CHECK(for struct lastlog, struct_lastlog,
189			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
190			#include <utmp.h>
191			#ifdef HAVE_LASTLOG_H
192			#include <lastlog.h>
193			#endif
194			]], [[struct lastlog ll;]])],[struct_lastlog=yes],[struct_lastlog=no])])
195			if test x$struct_lastlog = xyes; then
196			AC_DEFINE(HAVE_STRUCT_LASTLOG, 1, Define if utmp.h or lastlog.h has struct lastlog)
197			fi
198
199			dnl# check for struct lastlogx
200			AC_CACHE_CHECK(for struct lastlogx, struct_lastlogx,
201			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
202			#include <utmpx.h>
203			#ifdef HAVE_LASTLOG_H
204			#include <lastlog.h>
205			#endif
206			]], [[struct lastlogx ll;]])],[struct_lastlogx=yes],[struct_lastlogx=no])])
207			if test x$struct_lastlogx = xyes; then
208			AC_DEFINE(HAVE_STRUCT_LASTLOGX, 1, Define if utmpx.h or lastlog.h has struct lastlogx)
209			fi
210
211			dnl# --------------------------------------------------------------------------
212			dnl# FIND FILES
213			dnl# --------------------------------------------------------------------------
214
215			dnl# find utmp
216			AC_CACHE_CHECK(where utmp is located, path_utmp,
217			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
218	ayin	1.9	#include <stdlib.h>
219	ayin	1.1	#include <sys/types.h>
220			#include <utmp.h>
221			#include <errno.h>
222			main()
223			{
224			char *u, utmplist[] = {
225			"/var/run/utmp", "/var/adm/utmp", "/etc/utmp", "/usr/etc/utmp", "/usr/adm/utmp", NULL };
226			FILE a, f=fopen("conftestval", "w");
227			if (!f) exit(1);
228			#ifdef UTMP_FILE
229			fprintf(f, "%s\n", UTMP_FILE);
230			exit(0);
231			#endif
232			#ifdef _PATH_UTMP
233			fprintf(f, "%s\n", _PATH_UTMP);
234			exit(0);
235			#endif
236			for (u = utmplist; *u; u++) {
237			if ((a = fopen(*u, "r")) != NULL \|\| errno == EACCES) {
238			fprintf(f, "%s\n", *u);
239			exit(0);
240			}
241			}
242			exit(0);
243			}]])],[path_utmp=`cat conftestval`],[path_utmp=],[dnl
244			AC_MSG_WARN(Define UTMP_FILE in config.h manually)])])
245			if test x$path_utmp != x; then
246			AC_DEFINE_UNQUOTED(UTMP_FILE, "$path_utmp", Define location of utmp)
247			fi
248
249			dnl# --------------------------------------------------------------------------
250
251			dnl# find utmpx - if a utmp file exists at the same location and is more than
252			dnl# a day newer, then dump the utmpx. People leave lots of junk around.
253			AC_CACHE_CHECK(where utmpx is located, path_utmpx,
254			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
255	ayin	1.9	#include <stdlib.h>
256	ayin	1.1	#include <sys/types.h>
257			#include <utmpx.h>
258			#include <errno.h>
259			#include <sys/stat.h>
260			#ifdef HAVE_STRING_H
261			#include <string.h>
262			#endif
263			main()
264			{
265			char *u, p, *utmplist[] = {
266			#ifdef UTMPX_FILE
267			UTMPX_FILE,
268			#endif
269			#ifdef _PATH_UTMPX
270			_PATH_UTMPX,
271			#endif
272			"/var/adm/utmpx", "/etc/utmpx", NULL };
273			FILE a, f=fopen("conftestval", "w");
274			struct stat statu, statux;
275			if (!f) exit(1);
276			for (u = utmplist; *u; u++) {
277			if ((a = fopen(*u, "r")) != NULL \|\| errno == EACCES) {
278			if (stat(*u, &statux) < 0)
279			continue;
280			p = strdup(*u);
281			p[strlen(p) - 1] = '\0';
282			if (stat(p, &statu) >= 0
283			&& (statu.st_mtime - statux.st_mtime > 86400))
284			continue;
285			fprintf(f, "%s\n", *u);
286			exit(0);
287			}
288			}
289			exit(0);
290			}]])],[path_utmpx=`cat conftestval`],[path_utmpx=],[dnl
291			AC_MSG_WARN(Define UTMPX_FILE in config.h manually)])])
292			if test x$path_utmpx != x; then
293			AC_DEFINE_UNQUOTED(UTMPX_FILE, "$path_utmpx", Define location of utmpx)
294			fi
295
296			dnl# --------------------------------------------------------------------------
297
298			dnl# find wtmp
299			AC_CACHE_CHECK(where wtmp is located, path_wtmp,
300			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
301	ayin	1.9	#include <stdlib.h>
302	ayin	1.1	#include <sys/types.h>
303			#ifdef HAVE_UTMP_H
304			#include <utmp.h>
305			#endif
306			#include <errno.h>
307			main()
308			{
309			char *w, wtmplist[] = {
310	ayin	1.10	"/var/log/wtmp", "/var/adm/wtmp", "/etc/wtmp", "/usr/etc/wtmp", "/usr/adm/wtmp", NULL };
311	ayin	1.1	FILE a, f=fopen("conftestval", "w");
312			if (!f) exit(1);
313			#ifdef WTMP_FILE
314			fprintf(f, "%s\n", WTMP_FILE);
315			exit(0);
316			#endif
317			#ifdef _PATH_WTMP
318			fprintf(f, "%s\n", _PATH_WTMP);
319			exit(0);
320			#endif
321			for (w = wtmplist; *w; w++) {
322			if ((a = fopen(*w, "r")) != NULL \|\| errno == EACCES) {
323			fprintf(f, "%s\n", *w);
324			exit(0);
325			}
326			}
327			exit(0);
328			}]])],[path_wtmp=`cat conftestval`],[path_wtmp=],[dnl
329			AC_MSG_WARN(Define WTMP_FILE in config.h manually)])])
330			if test x$path_wtmp != x; then
331			AC_DEFINE_UNQUOTED(WTMP_FILE, "$path_wtmp", Define location of wtmp)
332			fi
333			dnl# --------------------------------------------------------------------------
334
335			dnl# find wtmpx
336			AC_CACHE_CHECK(where wtmpx is located, path_wtmpx,
337			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
338	ayin	1.9	#include <stdlib.h>
339	ayin	1.1	#ifdef HAVE_UTMPX_H
340			#include <utmpx.h>
341			#endif
342			#include <errno.h>
343			main()
344			{
345			char *w, wtmplist[] = {
346	ayin	1.10	"/var/log/wtmpx", "/var/adm/wtmpx", NULL };
347	ayin	1.1	FILE a, f=fopen("conftestval", "w");
348			if (!f) exit(1);
349			#ifdef WTMPX_FILE
350			fprintf(f, "%s\n", WTMPX_FILE);
351			exit(0);
352			#endif
353			#ifdef _PATH_WTMPX
354			fprintf(f, "%s\n", _PATH_WTMPX);
355			exit(0);
356			#endif
357			for (w = wtmplist; *w; w++) {
358			if ((a = fopen(*w, "r")) != NULL \|\| errno == EACCES) {
359			fprintf(f, "%s\n", *w);
360			exit(0);
361			}
362			}
363			exit(0);
364			}]])],[path_wtmpx=`cat conftestval`],[path_wtmpx=],[dnl
365			AC_MSG_WARN(Define WTMPX_FILE in config.h manually)])])
366			if test x$path_wtmpx != x; then
367			AC_DEFINE_UNQUOTED(WTMPX_FILE, "$path_wtmpx", Define location of wtmpx)
368			fi
369			dnl# --------------------------------------------------------------------------
370
371			dnl# find lastlog
372			AC_CACHE_CHECK(where lastlog is located, path_lastlog,
373			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
374	ayin	1.9	#include <stdlib.h>
375	ayin	1.1	#include <sys/types.h>
376			#ifdef HAVE_UTMPX_H
377			#include <utmpx.h>
378			#elif defined(HAVE_UTMP_H)
379			#include <utmp.h>
380			#endif
381			#ifdef HAVE_LASTLOG_H
382			#include <lastlog.h>
383			#endif
384			#include <errno.h>
385			main()
386			{
387			char *w, lastloglist[] = { "/var/log/lastlog", NULL };
388			FILE a, f=fopen("conftestval", "w");
389			if (!f) exit(1);
390			#ifdef LASTLOG_FILE
391			fprintf(f, "%s\n", LASTLOG_FILE);
392			exit(0);
393			#endif
394			#ifdef _PATH_LASTLOG
395			fprintf(f, "%s\n", _PATH_LASTLOG);
396			exit(0);
397			#endif
398			for (w = lastloglist; *w; w++) {
399			if ((a = fopen(*w, "r")) != NULL \|\| errno == EACCES) {
400			fprintf(f, "%s\n", *w);
401			exit(0);
402			}
403			}
404			exit(0);
405			}]])],[path_lastlog=`cat conftestval`],[path_lastlog=],[dnl
406			AC_MSG_WARN(Define LASTLOG_FILE in config.h manually)])])
407			if test x$path_lastlog != x; then
408			AC_DEFINE_UNQUOTED(LASTLOG_FILE, "$path_lastlog", Define location of lastlog)
409			fi
410			dnl# --------------------------------------------------------------------------
411
412			dnl# find lastlogx
413			AC_CACHE_CHECK(where lastlogx is located, path_lastlogx,
414			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
415	ayin	1.9	#include <stdlib.h>
416	ayin	1.1	#ifdef HAVE_UTMPX_H
417			#include <utmpx.h>
418			#endif
419			#include <errno.h>
420			main()
421			{
422			char *w, wtmplist[] = { "/var/log/lastlogx", "/var/adm/lastlogx", NULL };
423			FILE a, f=fopen("conftestval", "w");
424			if (!f) exit(1);
425			#ifdef LASTLOGX_FILE
426			fprintf(f, "%s\n", LASTLOGX_FILE);
427			exit(0);
428			#endif
429			#ifdef _PATH_LASTLOGX
430			fprintf(f, "%s\n", _PATH_LASTLOGX);
431			exit(0);
432			#endif
433			for (w = wtmplist; *w; w++) {
434			if ((a = fopen(*w, "r")) != NULL \|\| errno == EACCES) {
435			fprintf(f, "%s\n", *w);
436			exit(0);
437			}
438			}
439			exit(0);
440			}]])],[path_lastlogx=`cat conftestval`],[path_lastlogx=],[dnl
441			AC_MSG_WARN(Define LASTLOGX_FILE in config.h manually)])])
442			if test x$path_lastlogx != x; then
443			AC_DEFINE_UNQUOTED(LASTLOGX_FILE, "$path_lastlogx", Define location of lastlogx)
444			fi
445			])
446
447			AC_DEFUN([SCM_RIGHTS_CHECK],
448			[
449			AC_CACHE_CHECK(for unix-compliant filehandle passing ability, can_pass_fds,
450			[AC_TRY_LINK([
451	root	1.6	#include <cstddef> // broken bsds (is that redundant?) need this
452	ayin	1.1	#include <sys/types.h>
453			#include <sys/socket.h>
454			#include <sys/uio.h>
455			],[
456			{
457			msghdr msg;
458			iovec iov;
459			char buf [100];
460			char data = 0;
461
462			iov.iov_base = &data;
463			iov.iov_len = 1;
464
465			msg.msg_iov = &iov;
466			msg.msg_iovlen = 1;
467			msg.msg_control = buf;
468			msg.msg_controllen = sizeof buf;
469
470			cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
471			cmsg->cmsg_level = SOL_SOCKET;
472			cmsg->cmsg_type = SCM_RIGHTS;
473			cmsg->cmsg_len = 100;
474
475			(int )CMSG_DATA (cmsg) = 5;
476
477			return sendmsg (3, &msg, 0);
478			}
479			],[can_pass_fds=yes],[can_pass_fds=no])])
480			if test x$can_pass_fds = xyes; then
481			AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing)
482			else
483			AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability])
484			fi
485			])
486	ayin	1.3
487			AC_DEFUN([TTY_GROUP_CHECK],
488			[
489			AC_CACHE_CHECK([for tty group], tty_group,
490			[AC_TRY_RUN([
491			#include <sys/types.h>
492			#include <sys/stat.h>
493			#include <unistd.h>
494			#include <grp.h>
495
496			main()
497			{
498			struct stat st;
499			struct group *gr;
500			char *tty;
501			gr = getgrnam("tty");
502			tty = ttyname(0);
503			if (gr != 0
504			&& tty != 0
505			&& (stat(tty, &st)) == 0
506			&& st.st_gid == gr->gr_gid)
507			return 0;
508			else
509			return 1;
510			}],
511			[tty_group=yes],[tty_group=no],[tty_group=no])])
512			if test x$tty_group = xyes; then
513			AC_DEFINE(TTY_GID_SUPPORT, 1, "")
514			fi])
515