Differential D24566 Diff 70969 contrib/elftoolchain/libelf/gelf_chdr.c

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contrib/elftoolchain/libelf/gelf_chdr.c

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				/*-
				* SPDX-License-Identifier: BSD-2-Clause
				*
				* Copyright (c) 2018 The FreeBSD Foundation
				*
				emasteUnsubmitted Not Done Inline Actions will update year upon commit :) emaste: will update year upon commit :)
				* This software was developed by Tiger Gao under sponsorship from
				* the FreeBSD Foundation.
				*
				* Redistribution and use in source and binary forms, with or without
				* modification, are permitted provided that the following conditions are
				* met:
				* 1. Redistributions of source code must retain the above copyright
				* notice, this list of conditions and the following disclaimer.
				* 2. Redistributions in binary form must reproduce the above copyright
				* notice, this list of conditions and the following disclaimer in
				* the documentation and/or other materials provided with the distribution.
				*
				* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
				* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
				* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
				* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
				* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
				* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
				* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
				* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
				* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
				* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
				* SUCH DAMAGE.
				*/

				#include <assert.h>
				#include <gelf.h>
				#include <libelf.h>
				#include <limits.h>
				#include <stdint.h>

				#include "_libelf.h"


				Elf32_Chdr *
				elf32_getchdr(Elf_Scn *s)
				{
				return (_libelf_getchdr(s, ELFCLASS32));
				}

				Elf64_Chdr *
				elf64_getchdr(Elf_Scn *s)
				{
				return (_libelf_getchdr(s, ELFCLASS64));
				}

				GElf_Chdr *
				gelf_getchdr(Elf_Scn s, GElf_Chdr d)
				{
				int ec;
				void *ch;
				Elf32_Chdr *ch32;
				Elf64_Chdr *ch64;

				if (d == NULL) {
				LIBELF_SET_ERROR(ARGUMENT, 0);
				return (NULL);
				}

				if ((ch = _libelf_getchdr(s, ELFCLASSNONE)) == NULL)
				return (NULL);

				ec = s->s_elf->e_class;
				assert(ec == ELFCLASS32 \|\| ec == ELFCLASS64);

				if (ec == ELFCLASS32) {
				ch32 = (Elf32_Chdr *) ch;

				emasteUnsubmitted Done Inline Actions no extra space - `ch32 = (Elf32_Chdr )ch;` emaste:* no extra space - `ch32 = (Elf32_Chdr *)ch;`
				d->ch_type = (Elf64_Word) ch32->ch_type;
				d->ch_size = (Elf64_Xword) ch32->ch_size;
				d->ch_addralign = (Elf64_Xword) ch32->ch_addralign;
				} else {
				emasteUnsubmitted Done Inline Actions strange spacing here emaste: strange spacing here
				ch64 = (Elf64_Chdr *) ch;
				d = ch64;
				}

				return (d);
				}