# libpathrs: safe path resolution on Linux
# Copyright (C) 2019-2024 Aleksa Sarai <cyphar@cyphar.com>
# Copyright (C) 2019-2024 SUSE LLC
#
# This program 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.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with this program. If not, see <https://www.gnu.org/licenses/>.

language = "C"

header = """
/*
 * libpathrs: safe path resolution on Linux
 * Copyright (C) 2019-2024 Aleksa Sarai <cyphar@cyphar.com>
 * Copyright (C) 2019-2024 SUSE LLC
 *
 * This program 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.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with this program. If not, see <https://www.gnu.org/licenses/>.
 */

#ifdef __CBINDGEN_ALIGNED
#undef __CBINDGEN_ALIGNED
#endif
#define __CBINDGEN_ALIGNED(n) __attribute__((aligned(n)))
"""

trailer = """
#ifdef __CBINDGEN_ALIGNED
#undef __CBINDGEN_ALIGNED
#endif
"""

include_guard = "LIBPATHRS_H"

autogen_warning = """
/*
 * WARNING: This file was auto-generated by rust-cbindgen. Don't modify it.
 *          Instead, re-generate it with:
 *            % cbindgen -c cbindgen.toml -o include/pathrs.h
 */
"""

# Needed for dev_t.
sys_includes = ["sys/types.h"]

# Basic kernel-style formatting (can't use tabs so just use 4-spaces).
line_length = 80
tab_width = 4
style = "type"

[layout]
aligned_n = "__CBINDGEN_ALIGNED"

[export]
exclude = [
	# Don't generate a "typedef" for CBorrowedFd -- FFI-wise, CBorrowedFd is
	# just an int.
	"CBorrowedFd",
	# CReturn is a rust-only typedef.
	"CReturn",
	# Don't export the RESOLVE_* definitions.
	"RESOLVE_NO_XDEV",
	"RESOLVE_NO_MAGICLINKS",
	"RESOLVE_NO_SYMLINKS",
	"RESOLVE_BENEATH",
	"RESOLVE_IN_ROOT",
]

# Clean up the naming of structs.
[export.rename]
"CProcfsBase" = "pathrs_proc_base_t"

# Error API.
"CError" = "pathrs_error_t"

# The bare return values used for "kernel-like" APIs.
"RawFd" = "int"
"BorrowedFd" = "int"
"CBorrowedFd" = "int"