2 * Copyright (c) 2015 Kai Wang
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, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 ELFTC_VCSID("$Id: pe_dos.c 3312 2016-01-10 09:23:51Z kaiwang27 $");
37 pe_msdos_header(PE *pe)
45 if (pe->pe_dh == NULL) {
54 pe_msdos_stub(PE *pe, size_t *len)
57 if (pe == NULL || len == NULL) {
62 if (pe->pe_stub_ex > 0 &&
63 (pe->pe_flags & LIBPE_F_LOAD_DOS_STUB) == 0) {
64 assert((pe->pe_flags & LIBPE_F_SPECIAL_FILE) == 0);
65 (void) libpe_read_msdos_stub(pe);
68 *len = sizeof(PE_DosHdr) + pe->pe_stub_ex;
74 ps_update_msdos_header(PE *pe, PE_DosHdr *dh)
77 if (pe == NULL || dh == NULL) {
82 if (pe->pe_cmd == PE_C_READ || pe->pe_flags & LIBPE_F_FD_DONE) {
87 if (pe->pe_dh == NULL) {
88 if ((pe->pe_dh = malloc(sizeof(PE_DosHdr))) == NULL) {
96 pe->pe_flags |= LIBPE_F_DIRTY_DOS_HEADER;
102 ps_update_msdos_stub(PE *pe, char *dos_stub, size_t sz)
105 if (pe == NULL || dos_stub == NULL || sz == 0) {
110 if (pe->pe_cmd == PE_C_READ || pe->pe_flags & LIBPE_F_FD_DONE) {
115 pe->pe_stub_app = dos_stub;
116 pe->pe_stub_app_sz = sz;