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/cvs/libptytty/ptytty.m4
Revision: 1.40
Committed: Thu May 27 14:48:26 2021 UTC (3 years ago) by sf-exg
Branch: MAIN
Changes since 1.39: +25 -53 lines
Log Message:
Rearrange utmp(x) tests

File Contents

# Content
1 AC_DEFUN([PT_FIND_FILE],
2 [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 if test x$pt_cv_path_$1 != x; then
12 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 $2 in config.h manually)
15 fi])
16
17 AC_DEFUN([PTY_CHECK],
18 [
19 AC_CHECK_HEADERS( \
20 pty.h \
21 util.h \
22 libutil.h \
23 sys/ioctl.h \
24 stropts.h \
25 )
26
27 AC_CHECK_FUNCS( \
28 revoke \
29 _getpty \
30 getpt \
31 posix_openpt \
32 isastream \
33 setuid \
34 seteuid \
35 setreuid \
36 setresuid \
37 )
38
39 AC_MSG_CHECKING(for UNIX98 ptys)
40 AC_LINK_IFELSE(
41 [AC_LANG_PROGRAM(
42 [[#include <stdlib.h>]],
43 [[grantpt(0);unlockpt(0);ptsname(0);]])],
44 [unix98_pty=yes
45 AC_DEFINE(UNIX98_PTY, 1, "")
46 AC_MSG_RESULT(yes)],
47 [AC_MSG_RESULT(no)])
48
49 if test -z "$unix98_pty"; then
50 AC_SEARCH_LIBS(openpty, util, AC_DEFINE(HAVE_OPENPTY, 1, ""))
51 fi
52 ])
53
54 AC_DEFUN([UTMP_CHECK],
55 [
56 support_utmp=yes
57 support_wtmp=yes
58 support_lastlog=yes
59
60 AC_ARG_ENABLE(utmp,
61 [AS_HELP_STRING([--enable-utmp],[enable utmp (utmpx) support])],
62 [if test x$enableval = xyes -o x$enableval = xno; then
63 support_utmp=$enableval
64 fi])
65
66 AC_ARG_ENABLE(wtmp,
67 [AS_HELP_STRING([--enable-wtmp],[enable wtmp (wtmpx) support (requires --enable-utmp)])],
68 [if test x$enableval = xyes -o x$enableval = xno; then
69 support_wtmp=$enableval
70 fi])
71
72 AC_ARG_ENABLE(lastlog,
73 [AS_HELP_STRING([--enable-lastlog],[enable lastlog support (requires --enable-utmp)])],
74 [if test x$enableval = xyes -o x$enableval = xno; then
75 support_lastlog=$enableval
76 fi])
77
78 if test x$support_utmp = xyes; then
79 AC_DEFINE(UTMP_SUPPORT, 1, Define if you want to have utmp/utmpx support)
80 fi
81 if test x$support_wtmp = xyes; then
82 AC_DEFINE(WTMP_SUPPORT, 1, Define if you want to have wtmp support when utmp/utmpx is enabled)
83 fi
84 if test x$support_lastlog = xyes; then
85 AC_DEFINE(LASTLOG_SUPPORT, 1, Define if you want to have lastlog support when utmp/utmpx is enabled)
86 fi
87
88 case $host in
89 *-*-solaris*)
90 AC_DEFINE(__EXTENSIONS__, 1, Enable declarations in utmp.h on Solaris when the XPG4v2 namespace is active)
91 ;;
92 esac
93
94 AC_CHECK_HEADERS(utmp.h, [
95 AC_CHECK_TYPES([struct utmp], [], [], [
96 #include <sys/types.h>
97 #include <utmp.h>
98 ])
99
100 AC_CHECK_MEMBER([struct utmp.ut_host],
101 [AC_DEFINE(HAVE_UTMP_HOST, 1, Define if struct utmp contains ut_host)], [], [
102 #include <sys/types.h>
103 #include <utmp.h>
104 ])
105
106 AC_CHECK_MEMBER([struct utmp.ut_pid],
107 [AC_DEFINE(HAVE_UTMP_PID, 1, Define if struct utmp contains ut_pid)], [], [
108 #include <sys/types.h>
109 #include <utmp.h>
110 ])
111
112 AC_CHECK_FUNCS([updwtmp])
113
114 AC_CHECK_HEADERS([lastlog.h])
115
116 AC_CHECK_TYPES([struct lastlog], [], [], [
117 #include <sys/types.h>
118 #include <utmp.h>
119 #ifdef HAVE_LASTLOG_H
120 #include <lastlog.h>
121 #endif
122 ])
123
124 PT_FIND_FILE([utmp], [PT_UTMP_FILE],
125 ["/var/run/utmp" "/var/adm/utmp" "/etc/utmp" "/usr/etc/utmp" "/usr/adm/utmp"])
126
127 PT_FIND_FILE([wtmp], [PT_WTMP_FILE],
128 ["/var/log/wtmp" "/var/adm/wtmp" "/etc/wtmp" "/usr/etc/wtmp" "/usr/adm/wtmp"])
129
130 PT_FIND_FILE([lastlog], [PT_LASTLOG_FILE],
131 ["/var/log/lastlog" "/var/adm/lastlog"])
132
133 ])
134
135 AC_CHECK_HEADERS(utmpx.h, [
136 AC_CHECK_TYPES([struct utmpx], [], [], [
137 #include <sys/types.h>
138 #include <utmpx.h>
139 ])
140
141 AC_CHECK_MEMBER([struct utmpx.ut_host],
142 [AC_DEFINE(HAVE_UTMPX_HOST, 1, Define if struct utmpx contains ut_host)], [], [
143 #include <sys/types.h>
144 #include <utmpx.h>
145 ])
146
147 AC_CHECK_FUNCS([updwtmpx updlastlogx])
148
149 AC_CHECK_TYPES([struct lastlogx], [], [], [
150 #include <sys/types.h>
151 #include <utmpx.h>
152 ])
153
154 PT_FIND_FILE([wtmpx], [PT_WTMPX_FILE],
155 ["/var/log/wtmpx" "/var/adm/wtmpx"])
156
157 PT_FIND_FILE([lastlogx], [PT_LASTLOGX_FILE],
158 ["/var/log/lastlogx" "/var/adm/lastlogx"])
159 ])
160
161 ])
162
163 AC_DEFUN([SCM_RIGHTS_CHECK],
164 [
165 AH_TEMPLATE([_XOPEN_SOURCE], [Enable declarations of msg_control and msg_controllen on Solaris])
166 case $host in
167 *-*-solaris*)
168 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
169 #if __STDC_VERSION__ >= 199901L
170 error
171 #endif
172 ]])],[AC_DEFINE(_XOPEN_SOURCE, 500)],[AC_DEFINE(_XOPEN_SOURCE, 600)])
173 AC_SEARCH_LIBS(sendmsg, socket)
174 ;;
175 esac
176
177 AC_CACHE_CHECK(for unix-compliant filehandle passing ability, pt_cv_can_pass_fds,
178 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
179 #include <stddef.h> // broken bsds (is that redundant?) need this
180 #include <sys/types.h>
181 #include <sys/socket.h>
182 #include <sys/uio.h>
183 ]], [[
184 {
185 msghdr msg;
186 iovec iov;
187 char buf [100];
188 char data = 0;
189
190 iov.iov_base = &data;
191 iov.iov_len = 1;
192
193 msg.msg_iov = &iov;
194 msg.msg_iovlen = 1;
195 msg.msg_control = buf;
196 msg.msg_controllen = sizeof buf;
197
198 cmsghdr *cmsg = CMSG_FIRSTHDR (&msg);
199 cmsg->cmsg_level = SOL_SOCKET;
200 cmsg->cmsg_type = SCM_RIGHTS;
201 cmsg->cmsg_len = 100;
202
203 *(int *)CMSG_DATA (cmsg) = 5;
204
205 return sendmsg (3, &msg, 0);
206 }
207 ]])],[pt_cv_can_pass_fds=yes],[pt_cv_can_pass_fds=no])])
208 if test x$pt_cv_can_pass_fds = xyes; then
209 AC_DEFINE(HAVE_UNIX_FDPASS, 1, Define if sys/socket.h defines the necessary macros/functions for file handle passing)
210 else
211 AC_MSG_ERROR([libptytty requires unix-compliant filehandle passing ability])
212 fi
213 ])
214
215 AC_DEFUN([TTY_GROUP_CHECK],
216 [
217 AC_CACHE_CHECK([for tty group], pt_cv_tty_group,
218 [AC_RUN_IFELSE([AC_LANG_SOURCE([[
219 #include <sys/types.h>
220 #include <sys/stat.h>
221 #include <unistd.h>
222 #include <grp.h>
223
224 int main()
225 {
226 struct stat st;
227 struct group *gr;
228 char *tty;
229 gr = getgrnam("tty");
230 tty = ttyname(0);
231 if (gr != 0
232 && tty != 0
233 && (stat(tty, &st)) == 0
234 && st.st_gid == gr->gr_gid)
235 return 0;
236 else
237 return 1;
238 }]])],[pt_cv_tty_group=yes],[pt_cv_tty_group=no],[pt_cv_tty_group=no])])
239 if test x$pt_cv_tty_group = xyes; then
240 AC_DEFINE(TTY_GID_SUPPORT, 1, "")
241 fi])
242