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strace/SOURCES/0168-m4-fix-st_SELINUX-chec...

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From b8f375c2c8140e759122bca3e3469386d3ba5184 Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin" <ldv@strace.io>
Date: Mon, 29 Nov 2021 08:00:00 +0000
Subject: [PATCH 168/174] m4: fix st_SELINUX check
* m4/st_selinux.m4: Make sure selinux support is enabled only if
all expected functions are provided by libselinux.
Fixes: v5.12~49 "Implement --secontext[=full] option to display SELinux contexts"
---
m4/st_selinux.m4 | 36 ++++++++++++++++--------------------
1 file changed, 16 insertions(+), 20 deletions(-)
diff --git a/m4/st_selinux.m4 b/m4/st_selinux.m4
index da72a48..7b24eba 100644
--- a/m4/st_selinux.m4
+++ b/m4/st_selinux.m4
@@ -34,29 +34,25 @@ AS_IF([test "x$with_libselinux" != xno],
AS_IF([test "x$found_selinux_h" = xyes],
[saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $libselinux_LDFLAGS"
- AC_CHECK_LIB([selinux],[getpidcon],
- [libselinux_LIBS="-lselinux"
- enable_secontext=yes
- ],
- [if test "x$with_libselinux" != xcheck; then
- AC_MSG_FAILURE([failed to find getpidcon in libselinux])
- fi
- ]
- )
- AC_CHECK_LIB([selinux],[getfilecon],
- [libselinux_LIBS="-lselinux"
- enable_secontext=yes
- ],
- [if test "x$with_libselinux" != xcheck; then
- AC_MSG_FAILURE([failed to find getfilecon in libselinux])
- fi
- ]
+ missing=
+ for func in getpidcon getfilecon; do
+ AC_CHECK_LIB([selinux], [$func], [:],
+ [missing="$missing $func"])
+ done
+ AS_IF([test "x$missing" = x],
+ [libselinux_LIBS="-lselinux"
+ enable_secontext=yes
+ ],
+ [AS_IF([test "x$with_libselinux" != xcheck],
+ [AC_MSG_FAILURE([failed to find in libselinux:$missing])]
+ )
+ ]
)
LDFLAGS="$saved_LDFLAGS"
],
- [if test "x$with_libselinux" != xcheck; then
- AC_MSG_FAILURE([failed to find selinux.h])
- fi
+ [AS_IF([test "x$with_libselinux" != xcheck],
+ [AC_MSG_FAILURE([failed to find selinux.h])]
+ )
]
)
]
--- old/configure 2022-02-07 20:17:58.364068436 +0100
+++ new/configure 2022-02-07 20:19:17.092067347 +0100
@@ -18437,9 +18437,12 @@
if test "x$found_selinux_h" = xyes; then :
saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $libselinux_LDFLAGS"
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for getpidcon in -lselinux" >&5
-$as_echo_n "checking for getpidcon in -lselinux... " >&6; }
-if ${ac_cv_lib_selinux_getpidcon+:} false; then :
+ missing=
+ for func in getpidcon getfilecon; do
+ as_ac_Lib=`$as_echo "ac_cv_lib_selinux_$func" | $as_tr_sh`
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $func in -lselinux" >&5
+$as_echo_n "checking for $func in -lselinux... " >&6; }
+if eval \${$as_ac_Lib+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_check_lib_save_LIBS=$LIBS
@@ -18453,101 +18456,59 @@
#ifdef __cplusplus
extern "C"
#endif
-char getpidcon ();
+char $func ();
int
main ()
{
-return getpidcon ();
+return $func ();
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_selinux_getpidcon=yes
+ eval "$as_ac_Lib=yes"
else
- ac_cv_lib_selinux_getpidcon=no
+ eval "$as_ac_Lib=no"
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_selinux_getpidcon" >&5
-$as_echo "$ac_cv_lib_selinux_getpidcon" >&6; }
-if test "x$ac_cv_lib_selinux_getpidcon" = xyes; then :
- libselinux_LIBS="-lselinux"
- enable_secontext=yes
-
+eval ac_res=\$$as_ac_Lib
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+if eval test \"x\$"$as_ac_Lib"\" = x"yes"; then :
+ :
else
- if test "x$with_libselinux" != xcheck; then
- { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "failed to find getpidcon in libselinux
-See \`config.log' for more details" "$LINENO" 5; }
- fi
-
-
+ missing="$missing $func"
fi
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for getfilecon in -lselinux" >&5
-$as_echo_n "checking for getfilecon in -lselinux... " >&6; }
-if ${ac_cv_lib_selinux_getfilecon+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lselinux $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char getfilecon ();
-int
-main ()
-{
-return getfilecon ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_selinux_getfilecon=yes
-else
- ac_cv_lib_selinux_getfilecon=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_selinux_getfilecon" >&5
-$as_echo "$ac_cv_lib_selinux_getfilecon" >&6; }
-if test "x$ac_cv_lib_selinux_getfilecon" = xyes; then :
+ done
+ if test "x$missing" = x; then :
libselinux_LIBS="-lselinux"
- enable_secontext=yes
+ enable_secontext=yes
else
- if test "x$with_libselinux" != xcheck; then
- { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+ if test "x$with_libselinux" != xcheck; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "failed to find getfilecon in libselinux
+as_fn_error $? "failed to find in libselinux:$missing
See \`config.log' for more details" "$LINENO" 5; }
- fi
-
fi
+
+fi
LDFLAGS="$saved_LDFLAGS"
else
- if test "x$with_libselinux" != xcheck; then
- { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+ if test "x$with_libselinux" != xcheck; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "failed to find selinux.h
See \`config.log' for more details" "$LINENO" 5; }
- fi
+
+fi
fi
--
2.1.4
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