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( \
        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_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_HEADERS(utmp.h

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

AC_CHECK_HEADERS(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_HEADERS(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:	1.15
Committed:	Mon Nov 5 22:06:56 2007 UTC (16 years, 7 months ago) by ayin
Branch:	MAIN
Changes since 1.14:	+5 -9 lines
Log Message:	Remove duplicated checks.
#	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			updwtmp \
117			updwtmpx \
118	ayin	1.12	updlastlogx \
119	ayin	1.1	)
120
121	ayin	1.15	AC_CHECK_HEADERS(lastlog.h)
122	ayin	1.1
123			dnl# --------------------------------------------------------------------------
124			dnl# DO ALL UTMP AND WTMP CHECKING
125			dnl# --------------------------------------------------------------------------
126			dnl# check for host field in utmp structure
127
128			dnl# --------------------------------------------
129	ayin	1.15	AC_CHECK_HEADERS(utmp.h,
130	ayin	1.1	[AC_CACHE_CHECK([for struct utmp], struct_utmp,
131			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
132			#include <utmp.h>]], [[struct utmp ut;]])],[struct_utmp=yes],[struct_utmp=no])])
133			if test x$struct_utmp = xyes; then
134			AC_DEFINE(HAVE_STRUCT_UTMP, 1, Define if utmp.h has struct utmp)
135			fi
136			]
137
138			AC_CACHE_CHECK(for ut_host in utmp struct, struct_utmp_host,
139			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
140			#include <utmp.h>]], [[struct utmp ut; ut.ut_host;]])],[struct_utmp_host=yes],[struct_utmp_host=no])])
141			if test x$struct_utmp_host = xyes; then
142			AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host)
143			fi
144
145			AC_CACHE_CHECK(for ut_pid in utmp struct, struct_utmp_pid,
146			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
147			#include <utmp.h>]], [[struct utmp ut; ut.ut_pid;]])],[struct_utmp_pid=yes],[struct_utmp_pid=no])])
148			if test x$struct_utmp_pid = xyes; then
149			AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid)
150			fi
151	ayin	1.15	) dnl# AC_CHECK_HEADERS(utmp.h
152	ayin	1.1
153			dnl# --------------------------------------------
154
155	ayin	1.15	AC_CHECK_HEADERS(utmpx.h,
156	ayin	1.1	[AC_CACHE_CHECK([for struct utmpx], struct_utmpx,
157			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
158			#include <utmpx.h>]], [[struct utmpx ut;]])],[struct_utmpx=yes],[struct_utmpx=no])])
159			if test x$struct_utmpx = xyes; then
160			AC_DEFINE(HAVE_STRUCT_UTMPX, 1, Define if utmpx.h has struct utmpx)
161			fi
162			]
163
164			AC_CACHE_CHECK(for host in utmpx struct, struct_utmpx_host,
165			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
166			#include <utmpx.h>]], [[struct utmpx utx; utx.ut_host;]])],[struct_utmpx_host=yes],[struct_utmpx_host=no])])
167			if test x$struct_utmpx_host = xyes; then
168			AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host)
169			fi
170
171			AC_CACHE_CHECK(for session in utmpx struct, struct_utmpx_session,
172			[AC_TRY_COMPILE([#include <sys/types.h>
173			#include <utmpx.h>],
174			[struct utmpx utx; utx.ut_session;],
175			struct_utmpx_session=yes, struct_utmpx_session=no)])
176			if test x$struct_utmpx_session = xyes; then
177			AC_DEFINE(HAVE_UTMPX_SESSION, 1, Define if struct utmpx contains ut_session)
178			fi
179	ayin	1.15	) dnl# AC_CHECK_HEADERS(utmpx.h
180	ayin	1.1
181			dnl# --------------------------------------------------------------------------
182			dnl# check for struct lastlog
183			AC_CACHE_CHECK(for struct lastlog, struct_lastlog,
184			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
185			#include <utmp.h>
186			#ifdef HAVE_LASTLOG_H
187			#include <lastlog.h>
188			#endif
189			]], [[struct lastlog ll;]])],[struct_lastlog=yes],[struct_lastlog=no])])
190			if test x$struct_lastlog = xyes; then
191			AC_DEFINE(HAVE_STRUCT_LASTLOG, 1, Define if utmp.h or lastlog.h has struct lastlog)
192			fi
193
194			dnl# check for struct lastlogx
195			AC_CACHE_CHECK(for struct lastlogx, struct_lastlogx,
196			[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
197			#include <utmpx.h>
198			#ifdef HAVE_LASTLOG_H
199			#include <lastlog.h>
200			#endif
201			]], [[struct lastlogx ll;]])],[struct_lastlogx=yes],[struct_lastlogx=no])])
202			if test x$struct_lastlogx = xyes; then
203			AC_DEFINE(HAVE_STRUCT_LASTLOGX, 1, Define if utmpx.h or lastlog.h has struct lastlogx)
204			fi
205
206			dnl# --------------------------------------------------------------------------
207			dnl# FIND FILES
208			dnl# --------------------------------------------------------------------------
209
210			dnl# find utmp
211			AC_CACHE_CHECK(where utmp is located, path_utmp,
212			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
213	ayin	1.9	#include <stdlib.h>
214	ayin	1.1	#include <sys/types.h>
215			#include <utmp.h>
216			#include <errno.h>
217			main()
218			{
219			char *u, utmplist[] = {
220			"/var/run/utmp", "/var/adm/utmp", "/etc/utmp", "/usr/etc/utmp", "/usr/adm/utmp", NULL };
221			FILE a, f=fopen("conftestval", "w");
222			if (!f) exit(1);
223			#ifdef UTMP_FILE
224			fprintf(f, "%s\n", UTMP_FILE);
225			exit(0);
226			#endif
227			#ifdef _PATH_UTMP
228			fprintf(f, "%s\n", _PATH_UTMP);
229			exit(0);
230			#endif
231			for (u = utmplist; *u; u++) {
232			if ((a = fopen(*u, "r")) != NULL \|\| errno == EACCES) {
233			fprintf(f, "%s\n", *u);
234			exit(0);
235			}
236			}
237			exit(0);
238			}]])],[path_utmp=`cat conftestval`],[path_utmp=],[dnl
239			AC_MSG_WARN(Define UTMP_FILE in config.h manually)])])
240			if test x$path_utmp != x; then
241			AC_DEFINE_UNQUOTED(UTMP_FILE, "$path_utmp", Define location of utmp)
242			fi
243
244			dnl# --------------------------------------------------------------------------
245
246			dnl# find utmpx - if a utmp file exists at the same location and is more than
247			dnl# a day newer, then dump the utmpx. People leave lots of junk around.
248			AC_CACHE_CHECK(where utmpx is located, path_utmpx,
249			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
250	ayin	1.9	#include <stdlib.h>
251	ayin	1.1	#include <sys/types.h>
252			#include <utmpx.h>
253			#include <errno.h>
254			#include <sys/stat.h>
255			#ifdef HAVE_STRING_H
256			#include <string.h>
257			#endif
258			main()
259			{
260			char *u, p, *utmplist[] = {
261			#ifdef UTMPX_FILE
262			UTMPX_FILE,
263			#endif
264			#ifdef _PATH_UTMPX
265			_PATH_UTMPX,
266			#endif
267			"/var/adm/utmpx", "/etc/utmpx", NULL };
268			FILE a, f=fopen("conftestval", "w");
269			struct stat statu, statux;
270			if (!f) exit(1);
271			for (u = utmplist; *u; u++) {
272			if ((a = fopen(*u, "r")) != NULL \|\| errno == EACCES) {
273			if (stat(*u, &statux) < 0)
274			continue;
275			p = strdup(*u);
276			p[strlen(p) - 1] = '\0';
277			if (stat(p, &statu) >= 0
278			&& (statu.st_mtime - statux.st_mtime > 86400))
279			continue;
280			fprintf(f, "%s\n", *u);
281			exit(0);
282			}
283			}
284			exit(0);
285			}]])],[path_utmpx=`cat conftestval`],[path_utmpx=],[dnl
286			AC_MSG_WARN(Define UTMPX_FILE in config.h manually)])])
287			if test x$path_utmpx != x; then
288			AC_DEFINE_UNQUOTED(UTMPX_FILE, "$path_utmpx", Define location of utmpx)
289			fi
290
291			dnl# --------------------------------------------------------------------------
292
293			dnl# find wtmp
294			AC_CACHE_CHECK(where wtmp is located, path_wtmp,
295			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
296	ayin	1.9	#include <stdlib.h>
297	ayin	1.1	#include <sys/types.h>
298			#ifdef HAVE_UTMP_H
299			#include <utmp.h>
300			#endif
301			#include <errno.h>
302			main()
303			{
304			char *w, wtmplist[] = {
305	ayin	1.10	"/var/log/wtmp", "/var/adm/wtmp", "/etc/wtmp", "/usr/etc/wtmp", "/usr/adm/wtmp", NULL };
306	ayin	1.1	FILE a, f=fopen("conftestval", "w");
307			if (!f) exit(1);
308			#ifdef WTMP_FILE
309			fprintf(f, "%s\n", WTMP_FILE);
310			exit(0);
311			#endif
312			#ifdef _PATH_WTMP
313			fprintf(f, "%s\n", _PATH_WTMP);
314			exit(0);
315			#endif
316			for (w = wtmplist; *w; w++) {
317			if ((a = fopen(*w, "r")) != NULL \|\| errno == EACCES) {
318			fprintf(f, "%s\n", *w);
319			exit(0);
320			}
321			}
322			exit(0);
323			}]])],[path_wtmp=`cat conftestval`],[path_wtmp=],[dnl
324			AC_MSG_WARN(Define WTMP_FILE in config.h manually)])])
325			if test x$path_wtmp != x; then
326			AC_DEFINE_UNQUOTED(WTMP_FILE, "$path_wtmp", Define location of wtmp)
327			fi
328			dnl# --------------------------------------------------------------------------
329
330			dnl# find wtmpx
331			AC_CACHE_CHECK(where wtmpx is located, path_wtmpx,
332			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
333	ayin	1.9	#include <stdlib.h>
334	ayin	1.1	#ifdef HAVE_UTMPX_H
335			#include <utmpx.h>
336			#endif
337			#include <errno.h>
338			main()
339			{
340			char *w, wtmplist[] = {
341	ayin	1.10	"/var/log/wtmpx", "/var/adm/wtmpx", NULL };
342	ayin	1.1	FILE a, f=fopen("conftestval", "w");
343			if (!f) exit(1);
344			#ifdef WTMPX_FILE
345			fprintf(f, "%s\n", WTMPX_FILE);
346			exit(0);
347			#endif
348			#ifdef _PATH_WTMPX
349			fprintf(f, "%s\n", _PATH_WTMPX);
350			exit(0);
351			#endif
352			for (w = wtmplist; *w; w++) {
353			if ((a = fopen(*w, "r")) != NULL \|\| errno == EACCES) {
354			fprintf(f, "%s\n", *w);
355			exit(0);
356			}
357			}
358			exit(0);
359			}]])],[path_wtmpx=`cat conftestval`],[path_wtmpx=],[dnl
360			AC_MSG_WARN(Define WTMPX_FILE in config.h manually)])])
361			if test x$path_wtmpx != x; then
362			AC_DEFINE_UNQUOTED(WTMPX_FILE, "$path_wtmpx", Define location of wtmpx)
363			fi
364			dnl# --------------------------------------------------------------------------
365
366			dnl# find lastlog
367			AC_CACHE_CHECK(where lastlog is located, path_lastlog,
368			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
369	ayin	1.9	#include <stdlib.h>
370	ayin	1.1	#include <sys/types.h>
371			#ifdef HAVE_UTMPX_H
372			#include <utmpx.h>
373			#elif defined(HAVE_UTMP_H)
374			#include <utmp.h>
375			#endif
376			#ifdef HAVE_LASTLOG_H
377			#include <lastlog.h>
378			#endif
379			#include <errno.h>
380			main()
381			{
382			char *w, lastloglist[] = { "/var/log/lastlog", NULL };
383			FILE a, f=fopen("conftestval", "w");
384			if (!f) exit(1);
385			#ifdef LASTLOG_FILE
386			fprintf(f, "%s\n", LASTLOG_FILE);
387			exit(0);
388			#endif
389			#ifdef _PATH_LASTLOG
390			fprintf(f, "%s\n", _PATH_LASTLOG);
391			exit(0);
392			#endif
393			for (w = lastloglist; *w; w++) {
394			if ((a = fopen(*w, "r")) != NULL \|\| errno == EACCES) {
395			fprintf(f, "%s\n", *w);
396			exit(0);
397			}
398			}
399			exit(0);
400			}]])],[path_lastlog=`cat conftestval`],[path_lastlog=],[dnl
401			AC_MSG_WARN(Define LASTLOG_FILE in config.h manually)])])
402			if test x$path_lastlog != x; then
403			AC_DEFINE_UNQUOTED(LASTLOG_FILE, "$path_lastlog", Define location of lastlog)
404			fi
405			dnl# --------------------------------------------------------------------------
406
407			dnl# find lastlogx
408			AC_CACHE_CHECK(where lastlogx is located, path_lastlogx,
409			[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
410	ayin	1.9	#include <stdlib.h>
411	ayin	1.1	#ifdef HAVE_UTMPX_H
412			#include <utmpx.h>
413			#endif
414			#include <errno.h>
415			main()
416			{
417			char *w, wtmplist[] = { "/var/log/lastlogx", "/var/adm/lastlogx", NULL };
418			FILE a, f=fopen("conftestval", "w");
419			if (!f) exit(1);
420			#ifdef LASTLOGX_FILE
421			fprintf(f, "%s\n", LASTLOGX_FILE);
422			exit(0);
423			#endif
424			#ifdef _PATH_LASTLOGX
425			fprintf(f, "%s\n", _PATH_LASTLOGX);
426			exit(0);
427			#endif
428			for (w = wtmplist; *w; w++) {
429			if ((a = fopen(*w, "r")) != NULL \|\| errno == EACCES) {
430			fprintf(f, "%s\n", *w);
431			exit(0);
432			}
433			}
434			exit(0);
435			}]])],[path_lastlogx=`cat conftestval`],[path_lastlogx=],[dnl
436			AC_MSG_WARN(Define LASTLOGX_FILE in config.h manually)])])
437			if test x$path_lastlogx != x; then
438			AC_DEFINE_UNQUOTED(LASTLOGX_FILE, "$path_lastlogx", Define location of lastlogx)
439			fi
440			])
441
442			AC_DEFUN([SCM_RIGHTS_CHECK],
443			[
444			AC_CACHE_CHECK(for unix-compliant filehandle passing ability, can_pass_fds,
445			[AC_TRY_LINK([
446	root	1.6	#include <cstddef> // broken bsds (is that redundant?) need this
447	ayin	1.1	#include <sys/types.h>
448			#include <sys/socket.h>
449			#include <sys/uio.h>
450			],[
451			{
452			msghdr msg;
453			iovec iov;
454			char buf [100];
455			char data = 0;
456
457			iov.iov_base = &data;
458			iov.iov_len = 1;
459
460			msg.msg_iov = &iov;
461			msg.msg_iovlen = 1;
462			msg.msg_control = buf;
463			msg.msg_controllen = sizeof buf;
464
465			cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
466			cmsg->cmsg_level = SOL_SOCKET;
467			cmsg->cmsg_type = SCM_RIGHTS;
468			cmsg->cmsg_len = 100;
469
470			(int )CMSG_DATA (cmsg) = 5;
471
472			return sendmsg (3, &msg, 0);
473			}
474			],[can_pass_fds=yes],[can_pass_fds=no])])
475			if test x$can_pass_fds = xyes; then
476			AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing)
477			else
478			AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability])
479			fi
480			])
481	ayin	1.3
482			AC_DEFUN([TTY_GROUP_CHECK],
483			[
484			AC_CACHE_CHECK([for tty group], tty_group,
485			[AC_TRY_RUN([
486			#include <sys/types.h>
487			#include <sys/stat.h>
488			#include <unistd.h>
489			#include <grp.h>
490
491			main()
492			{
493			struct stat st;
494			struct group *gr;
495			char *tty;
496			gr = getgrnam("tty");
497			tty = ttyname(0);
498			if (gr != 0
499			&& tty != 0
500			&& (stat(tty, &st)) == 0
501			&& st.st_gid == gr->gr_gid)
502			return 0;
503			else
504			return 1;
505			}],
506			[tty_group=yes],[tty_group=no],[tty_group=no])])
507			if test x$tty_group = xyes; then
508			AC_DEFINE(TTY_GID_SUPPORT, 1, "")
509			fi])
510