2 * Copyright (c) 2016 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
32 ELFTC_VCSID("$Id: pe_section.c 3312 2016-01-10 09:23:51Z kaiwang27 $");
35 pe_getscn(PE *pe, size_t ndx)
39 if (pe == NULL || ndx < 1 || ndx > 0xFFFFU) {
44 STAILQ_FOREACH(ps, &pe->pe_scn, ps_next) {
45 if (ps->ps_ndx == ndx)
67 pe_nextscn(PE *pe, PE_Scn *ps)
76 ps = STAILQ_FIRST(&pe->pe_scn);
78 ps = STAILQ_NEXT(ps, ps_next);
81 if (ps->ps_ndx >= 1 && ps->ps_ndx <= 0xFFFFU)
83 ps = STAILQ_NEXT(ps, ps_next);
92 PE_Scn *ps, *tps, *_tps;
99 if (pe->pe_cmd == PE_C_READ || pe->pe_flags & LIBPE_F_FD_DONE) {
104 if ((ps = libpe_alloc_scn(pe)) == NULL)
107 if (pe->pe_flags & LIBPE_F_BAD_SEC_HEADER) {
108 STAILQ_FOREACH_SAFE(tps, &pe->pe_scn, ps_next, _tps)
109 libpe_release_scn(tps);
110 pe->pe_flags &= ~LIBPE_F_BAD_SEC_HEADER;
113 STAILQ_INSERT_TAIL(&pe->pe_scn, ps, ps_next);
115 ps->ps_flags |= PE_F_DIRTY | LIBPE_F_LOAD_SECTION;
116 pe->pe_flags |= LIBPE_F_DIRTY_SEC_HEADER;
122 pe_insertscn(PE *pe, size_t ndx)
126 if (pe == NULL || ndx < 1 || ndx > 0xFFFFU) {
131 if (pe->pe_cmd == PE_C_READ || pe->pe_flags & LIBPE_F_FD_DONE) {
136 if ((ps = libpe_alloc_scn(pe)) == NULL)
139 if (pe->pe_flags & LIBPE_F_BAD_SEC_HEADER) {
140 STAILQ_FOREACH_SAFE(a, &pe->pe_scn, ps_next, b)
141 libpe_release_scn(a);
142 pe->pe_flags &= ~LIBPE_F_BAD_SEC_HEADER;
146 STAILQ_FOREACH(a, &pe->pe_scn, ps_next) {
147 if (a->ps_ndx & 0xFFFF0000U)
149 if (a->ps_ndx == ndx)
155 STAILQ_INSERT_TAIL(&pe->pe_scn, ps, ps_next);
159 ps->ps_ndx = b->ps_ndx + 1;
160 } else if (b == NULL) {
161 STAILQ_INSERT_HEAD(&pe->pe_scn, ps, ps_next);
164 STAILQ_INSERT_AFTER(&pe->pe_scn, b, ps, ps_next);
169 while ((a = STAILQ_NEXT(a, ps_next)) != NULL) {
170 if ((a->ps_ndx & 0xFFFF0000U) == 0)
174 ps->ps_flags |= PE_F_DIRTY | LIBPE_F_LOAD_SECTION;
175 pe->pe_flags |= LIBPE_F_DIRTY_SEC_HEADER;
181 pe_section_header(PE_Scn *ps)
193 pe_update_section_header(PE_Scn *ps, PE_SecHdr *sh)
197 if (ps == NULL || sh == NULL) {
204 if (pe->pe_cmd == PE_C_READ || pe->pe_flags & LIBPE_F_FD_DONE) {
210 pe->pe_flags |= LIBPE_F_DIRTY_SEC_HEADER;