2 # How to list mounted file systems.
4 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
7 # This program is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 2, or (at your option)
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software Foundation,
19 # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 dnl From Jim Meyering.
23 dnl This is not pretty. I've just taken the autoconf code and wrapped
24 dnl it in an AC_DEFUN and made some other fixes.
27 # gl_LIST_MOUNTED_FILE_SYSTEMS([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
28 AC_DEFUN([gl_LIST_MOUNTED_FILE_SYSTEMS],
30 AC_CHECK_FUNCS(listmntent getmntinfo)
31 AC_CHECK_HEADERS_ONCE(sys/param.h)
33 # We must include grp.h before ucred.h on OSF V4.0, since ucred.h uses
34 # NGROUPS (as the array dimension for a struct member) without a definition.
35 AC_CHECK_HEADERS(sys/ucred.h, [], [], [#include <grp.h>])
37 AC_CHECK_HEADERS(sys/mount.h, [], [],
40 #include <sys/param.h>
43 AC_CHECK_HEADERS(mntent.h sys/fs_types.h)
47 # include <sys/param.h> /* needed by powerpc-apple-darwin1.3.7 */
50 # include <grp.h> /* needed for definition of NGROUPS */
51 # include <sys/ucred.h> /* needed by powerpc-apple-darwin1.3.7 */
54 # include <sys/mount.h>
56 #if HAVE_SYS_FS_TYPES_H
57 # include <sys/fs_types.h> /* needed by powerpc-apple-darwin1.3.7 */
60 AC_CHECK_MEMBERS([struct fsstat.f_fstypename],,,[$getfsstat_includes])
62 # Determine how to get the list of mounted file systems.
65 # If the getmntent function is available but not in the standard library,
66 # make sure LIBS contains -lsun (on Irix4) or -lseq (on PTX).
69 # This test must precede the ones for getmntent because Unicos-9 is
70 # reported to have the getmntent function, but its support is incompatible
71 # with other getmntent implementations.
73 # NOTE: Normally, I wouldn't use a check for system type as I've done for
74 # `CRAY' below since that goes against the whole autoconf philosophy. But
75 # I think there is too great a chance that some non-Cray system has a
76 # function named listmntent to risk the false positive.
78 if test -z "$ac_list_mounted_fs"; then
80 AC_MSG_CHECKING([for listmntent of Cray/Unicos-9])
81 AC_CACHE_VAL(fu_cv_sys_mounted_cray_listmntent,
82 [fu_cv_sys_mounted_cray_listmntent=no
87 ], [test $ac_cv_func_listmntent = yes \
88 && fu_cv_sys_mounted_cray_listmntent=yes]
92 AC_MSG_RESULT($fu_cv_sys_mounted_cray_listmntent)
93 if test $fu_cv_sys_mounted_cray_listmntent = yes; then
94 ac_list_mounted_fs=found
95 AC_DEFINE(MOUNTED_LISTMNTENT, 1,
96 [Define if there is a function named listmntent that can be used to
97 list all mounted file systems. (UNICOS)])
101 if test -z "$ac_list_mounted_fs"; then
103 AC_MSG_CHECKING([for mntctl function and struct vmount])
104 AC_CACHE_VAL(fu_cv_sys_mounted_vmount,
105 [AC_TRY_CPP([#include <fshelp.h>],
106 fu_cv_sys_mounted_vmount=yes,
107 fu_cv_sys_mounted_vmount=no)])
108 AC_MSG_RESULT($fu_cv_sys_mounted_vmount)
109 if test $fu_cv_sys_mounted_vmount = yes; then
110 ac_list_mounted_fs=found
111 AC_DEFINE(MOUNTED_VMOUNT, 1,
112 [Define if there is a function named mntctl that can be used to read
113 the list of mounted file systems, and there is a system header file
114 that declares `struct vmount.' (AIX)])
118 if test $ac_cv_func_getmntent = yes; then
120 # This system has the getmntent function.
121 # Determine whether it's the one-argument variant or the two-argument one.
123 if test -z "$ac_list_mounted_fs"; then
124 # 4.3BSD, SunOS, HP-UX, Dynix, Irix
125 AC_MSG_CHECKING([for one-argument getmntent function])
126 AC_CACHE_VAL(fu_cv_sys_mounted_getmntent1,
128 /* SunOS 4.1.x /usr/include/mntent.h needs this for FILE */
133 # if defined _PATH_MOUNTED /* GNU libc */
134 # define MOUNTED _PATH_MOUNTED
136 # if defined MNT_MNTTAB /* HP-UX. */
137 # define MOUNTED MNT_MNTTAB
139 # if defined MNTTABNAME /* Dynix. */
140 # define MOUNTED MNTTABNAME
144 [ struct mntent *mnt = 0; char *table = MOUNTED; ],
145 fu_cv_sys_mounted_getmntent1=yes,
146 fu_cv_sys_mounted_getmntent1=no)])
147 AC_MSG_RESULT($fu_cv_sys_mounted_getmntent1)
148 if test $fu_cv_sys_mounted_getmntent1 = yes; then
149 ac_list_mounted_fs=found
150 AC_DEFINE(MOUNTED_GETMNTENT1, 1,
151 [Define if there is a function named getmntent for reading the list
152 of mounted file systems, and that function takes a single argument.
153 (4.3BSD, SunOS, HP-UX, Dynix, Irix)])
157 if test -z "$ac_list_mounted_fs"; then
159 AC_MSG_CHECKING([for two-argument getmntent function])
160 AC_CACHE_VAL(fu_cv_sys_mounted_getmntent2,
161 [AC_EGREP_HEADER(getmntent, sys/mnttab.h,
162 fu_cv_sys_mounted_getmntent2=yes,
163 fu_cv_sys_mounted_getmntent2=no)])
164 AC_MSG_RESULT($fu_cv_sys_mounted_getmntent2)
165 if test $fu_cv_sys_mounted_getmntent2 = yes; then
166 ac_list_mounted_fs=found
167 AC_DEFINE(MOUNTED_GETMNTENT2, 1,
168 [Define if there is a function named getmntent for reading the list of
169 mounted file systems, and that function takes two arguments. (SVR4)])
175 if test -z "$ac_list_mounted_fs"; then
176 # DEC Alpha running OSF/1, and Apple Darwin 1.3.
177 # powerpc-apple-darwin1.3.7 needs sys/param.h sys/ucred.h sys/fs_types.h
179 AC_MSG_CHECKING([for getfsstat function])
180 AC_CACHE_VAL(fu_cv_sys_mounted_getfsstat,
182 #include <sys/types.h>
183 #if HAVE_STRUCT_FSSTAT_F_FSTYPENAME
184 # define FS_TYPE(Ent) ((Ent).f_fstypename)
186 # define FS_TYPE(Ent) mnt_names[(Ent).f_type]
190 [struct statfs *stats;
191 int numsys = getfsstat ((struct statfs *)0, 0L, MNT_WAIT);
192 char *t = FS_TYPE (*stats); ],
193 fu_cv_sys_mounted_getfsstat=yes,
194 fu_cv_sys_mounted_getfsstat=no)])
195 AC_MSG_RESULT($fu_cv_sys_mounted_getfsstat)
196 if test $fu_cv_sys_mounted_getfsstat = yes; then
197 ac_list_mounted_fs=found
198 AC_DEFINE(MOUNTED_GETFSSTAT, 1,
199 [Define if there is a function named getfsstat for reading the
200 list of mounted file systems. (DEC Alpha running OSF/1)])
204 if test -z "$ac_list_mounted_fs"; then
206 AC_MSG_CHECKING([for FIXME existence of three headers])
207 AC_CACHE_VAL(fu_cv_sys_mounted_fread_fstyp,
209 #include <sys/statfs.h>
210 #include <sys/fstyp.h>
211 #include <mnttab.h>],
212 fu_cv_sys_mounted_fread_fstyp=yes,
213 fu_cv_sys_mounted_fread_fstyp=no)])
214 AC_MSG_RESULT($fu_cv_sys_mounted_fread_fstyp)
215 if test $fu_cv_sys_mounted_fread_fstyp = yes; then
216 ac_list_mounted_fs=found
217 AC_DEFINE(MOUNTED_FREAD_FSTYP, 1,
218 [Define if (like SVR2) there is no specific function for reading the
219 list of mounted file systems, and your system has these header files:
220 <sys/fstyp.h> and <sys/statfs.h>. (SVR3)])
224 if test -z "$ac_list_mounted_fs"; then
225 # 4.4BSD and DEC OSF/1.
226 AC_MSG_CHECKING([for getmntinfo function])
227 AC_CACHE_VAL(fu_cv_sys_mounted_getmntinfo,
229 test "$ac_cv_func_getmntinfo" = yes \
230 && fu_cv_sys_mounted_getmntinfo=yes \
231 || fu_cv_sys_mounted_getmntinfo=no
233 AC_MSG_RESULT($fu_cv_sys_mounted_getmntinfo)
234 if test $fu_cv_sys_mounted_getmntinfo = yes; then
235 ac_list_mounted_fs=found
236 AC_DEFINE(MOUNTED_GETMNTINFO, 1,
237 [Define if there is a function named getmntinfo for reading the
238 list of mounted file systems. (4.4BSD, Darwin)])
242 if test -z "$ac_list_mounted_fs"; then
244 AC_MSG_CHECKING([for getmnt function])
245 AC_CACHE_VAL(fu_cv_sys_mounted_getmnt,
247 #include <sys/fs_types.h>
248 #include <sys/mount.h>],
249 fu_cv_sys_mounted_getmnt=yes,
250 fu_cv_sys_mounted_getmnt=no)])
251 AC_MSG_RESULT($fu_cv_sys_mounted_getmnt)
252 if test $fu_cv_sys_mounted_getmnt = yes; then
253 ac_list_mounted_fs=found
254 AC_DEFINE(MOUNTED_GETMNT, 1,
255 [Define if there is a function named getmnt for reading the list of
256 mounted file systems. (Ultrix)])
260 if test -z "$ac_list_mounted_fs"; then
262 AC_CHECK_FUNCS(next_dev fs_stat_dev)
263 AC_CHECK_HEADERS(fs_info.h)
264 AC_MSG_CHECKING([for BEOS mounted file system support functions])
265 if test $ac_cv_header_fs_info_h = yes \
266 && test $ac_cv_func_next_dev = yes \
267 && test $ac_cv_func_fs_stat_dev = yes; then
272 AC_MSG_RESULT($fu_result)
273 if test $fu_result = yes; then
274 ac_list_mounted_fs=found
275 AC_DEFINE(MOUNTED_FS_STAT_DEV, 1,
276 [Define if there are functions named next_dev and fs_stat_dev for
277 reading the list of mounted file systems. (BeOS)])
281 if test -z "$ac_list_mounted_fs"; then
283 AC_MSG_CHECKING([whether it is possible to resort to fread on /etc/mnttab])
284 AC_CACHE_VAL(fu_cv_sys_mounted_fread,
285 [AC_TRY_CPP([#include <mnttab.h>],
286 fu_cv_sys_mounted_fread=yes,
287 fu_cv_sys_mounted_fread=no)])
288 AC_MSG_RESULT($fu_cv_sys_mounted_fread)
289 if test $fu_cv_sys_mounted_fread = yes; then
290 ac_list_mounted_fs=found
291 AC_DEFINE(MOUNTED_FREAD, 1,
292 [Define if there is no specific function for reading the list of
293 mounted file systems. fread will be used to read /etc/mnttab.
298 if test -z "$ac_list_mounted_fs"; then
299 AC_MSG_ERROR([could not determine how to read list of mounted file systems])
300 # FIXME -- no need to abort building the whole package
301 # Can't build mountlist.c or anything that needs its functions
304 AS_IF([test $ac_list_mounted_fs = found], [$1], [$2])