2 * Copyright (c) Christos Zoulas 2008.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice immediately at the beginning of the file, without modification,
10 * this list of conditions, and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 if (nbytes <= sizeof(elfhdr))
31 (void)memcpy(&elfhdr, buf, sizeof elfhdr);
32 swap = (u.c[sizeof(int32_t) - 1] + 1) != elfhdr.e_ident[EI_DATA];
34 type = elf_getu16(swap, elfhdr.e_type);
35 notecount = ms->elf_notes_max;
39 phnum = elf_getu16(swap, elfhdr.e_phnum);
40 if (phnum > ms->elf_phnum_max)
41 return toomany(ms, "program headers", phnum);
42 flags |= FLAGS_IS_CORE;
43 if (dophn_core(ms, clazz, swap, fd,
44 CAST(off_t, elf_getu(swap, elfhdr.e_phoff)), phnum,
45 CAST(size_t, elf_getu16(swap, elfhdr.e_phentsize)),
46 fsize, &flags, ¬ecount) == -1)
52 phnum = elf_getu16(swap, elfhdr.e_phnum);
53 if (phnum > ms->elf_phnum_max)
54 return toomany(ms, "program", phnum);
55 shnum = elf_getu16(swap, elfhdr.e_shnum);
56 if (shnum > ms->elf_shnum_max)
57 return toomany(ms, "section", shnum);
58 if (dophn_exec(ms, clazz, swap, fd,
59 CAST(off_t, elf_getu(swap, elfhdr.e_phoff)), phnum,
60 CAST(size_t, elf_getu16(swap, elfhdr.e_phentsize)),
61 fsize, shnum, &flags, ¬ecount) == -1)
65 shnum = elf_getu16(swap, elfhdr.e_shnum);
66 if (shnum > ms->elf_shnum_max)
67 return toomany(ms, "section headers", shnum);
68 if (doshn(ms, clazz, swap, fd,
69 CAST(off_t, elf_getu(swap, elfhdr.e_shoff)), shnum,
70 CAST(size_t, elf_getu16(swap, elfhdr.e_shentsize)),
71 fsize, elf_getu16(swap, elfhdr.e_machine),
72 CAST(int, elf_getu16(swap, elfhdr.e_shstrndx)),
73 &flags, ¬ecount) == -1)
81 return toomany(ms, "notes", ms->elf_notes_max);