libbtrfsutil_patch := $(shell sed -rn 's/^\#define BTRFS_UTIL_VERSION_PATCH ([0-9])+$$/\1/p' libbtrfsutil/btrfsutil.h)
libbtrfsutil_version := $(libbtrfsutil_major).$(libbtrfsutil_minor).$(libbtrfsutil_patch)
libbtrfsutil_objects = libbtrfsutil/errors.o libbtrfsutil/filesystem.o \
- libbtrfsutil/subvolume.o libbtrfsutil/qgroup.o
+ libbtrfsutil/subvolume.o libbtrfsutil/qgroup.o \
+ libbtrfsutil/stubs.o
convert_objects = convert/main.o convert/common.o convert/source-fs.o \
convert/source-ext2.o convert/source-reiserfs.o
mkfs_objects = mkfs/main.o mkfs/common.o mkfs/rootdir.o
AC_CHECK_FUNCS([openat], [],
[AC_MSG_ERROR([cannot find openat() function])])
+AC_CHECK_FUNCS([reallocarray])
+
m4_ifndef([PKG_PROG_PKG_CONFIG],
[m4_fatal([Could not locate the pkg-config autoconf
macros. These are usually located in /usr/share/aclocal/pkg.m4.
--- /dev/null
+/*
+ * This file is part of libbtrfsutil.
+ *
+ * libbtrfsutil is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * libbtrfsutil is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with libbtrfsutil. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#if HAVE_REALLOCARRAY != 1
+
+#include <stdlib.h>
+#include <errno.h>
+
+void *reallocarray(void *ptr, size_t nmemb, size_t size)
+{
+ size_t res;
+
+ res = nmemb * size;
+ if (res < nmemb || res < size) {
+ errno = ENOMEM;
+ return NULL;
+ }
+ return realloc(ptr, res);
+}
+
+#endif
--- /dev/null
+/*
+ * This file is part of libbtrfsutil.
+ *
+ * libbtrfsutil is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * libbtrfsutil is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with libbtrfsutil. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _LIBBTRFSUTIL_STUBS_H_
+
+void *reallocarray(void *ptr, size_t nmemb, size_t size);
+
+#endif
#include <sys/types.h>
#include <sys/vfs.h>
#include <linux/magic.h>
+#include "stubs.h"
#include "btrfsutil_internal.h"