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authorStephan Bergmann <sbergman@redhat.com>2019-11-27 10:28:52 +0100
committerStephan Bergmann <sbergman@redhat.com>2019-11-27 12:43:37 +0100
commit047e8ae5d189f030d565b13f97a4d6a45b00e6be (patch)
tree13c227ea77790e8aa6d2d5142bbac717f544ee19
parenta573829438bf4a3dc43e8774bfe4e29989e2e352 (diff)
external/liblangtag: Avoid null pointer deref in lt_warning call
Recent GCC 10 trunk warns (when LO is configured with --enable-optimized): > In file included from lt-script-db.c:24: > lt-script-db.c: In function ‘lt_script_db_parse.constprop’: > lt-messages.h:105:2: error: ‘%s’ directive argument is null [-Werror=format-overflow=] > 105 | lt_message_printf(LT_MSG_WARNING, \ > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > 106 | LT_MSG_FLAG_NONE, \ > | ~~~~~~~~~~~~~~~~~~~ > 107 | 0, \ > | ~~~~~~ > 108 | __VA_ARGS__) > | ~~~~~~~~~~~~ > lt-script-db.c:137:4: note: in expansion of macro ‘lt_warning’ > 137 | lt_warning("No subtag node: description = '%s'", > | ^~~~~~~~~~ > lt-script-db.c:137:47: note: format string is defined here > 137 | lt_warning("No subtag node: description = '%s'", > | ^~ Change-Id: I2924f7aab84f4f2640f277ee5c2689753627ae78 Reviewed-on: https://gerrit.libreoffice.org/83869 Tested-by: Jenkins Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
-rw-r--r--external/liblangtag/UnpackedTarball_liblangtag.mk3
-rw-r--r--external/liblangtag/Wformat-overflow.patch17
2 files changed, 20 insertions, 0 deletions
diff --git a/external/liblangtag/UnpackedTarball_liblangtag.mk b/external/liblangtag/UnpackedTarball_liblangtag.mk
index cd52b169fa57..66b8051782d0 100644
--- a/external/liblangtag/UnpackedTarball_liblangtag.mk
+++ b/external/liblangtag/UnpackedTarball_liblangtag.mk
@@ -17,6 +17,8 @@ $(eval $(call gb_UnpackedTarball_set_pre_action,liblangtag,\
$(eval $(call gb_UnpackedTarball_update_autoconf_configs,liblangtag))
+$(eval $(call gb_UnpackedTarball_set_patchlevel,liblangtag,0))
+
ifneq ($(OS),MACOSX)
ifneq ($(OS),WNT)
$(eval $(call gb_UnpackedTarball_add_patches,liblangtag,\
@@ -29,6 +31,7 @@ $(eval $(call gb_UnpackedTarball_add_patches,liblangtag, \
$(if $(SYSTEM_LIBXML),,external/liblangtag/langtag-libtool-rpath.patch.0) \
external/liblangtag/clang-cl.patch.0 \
external/liblangtag/langtag-valencia.patch.0 \
+ external/liblangtag/Wformat-overflow.patch \
))
# vim: set noet sw=4 ts=4:
diff --git a/external/liblangtag/Wformat-overflow.patch b/external/liblangtag/Wformat-overflow.patch
new file mode 100644
index 000000000000..f2d017e4b395
--- /dev/null
+++ b/external/liblangtag/Wformat-overflow.patch
@@ -0,0 +1,17 @@
+--- liblangtag/lt-script-db.c
++++ liblangtag/lt-script-db.c
+@@ -134,8 +134,12 @@
+ cnode = cnode->next;
+ }
+ if (!subtag) {
+- lt_warning("No subtag node: description = '%s'",
+- desc);
++ if (!desc) {
++ lt_warning("No subtag nor description node");
++ } else {
++ lt_warning("No subtag node: description = '%s'",
++ desc);
++ }
+ goto bail1;
+ }
+ if (!desc) {