2 * Copyright (c) Christos Zoulas 2003.
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
40 FILE_RCSID("@(#)$File: readelf.c,v 1.68 2007/12/27 16:13:26 christos Exp $")
44 private int dophn_core(struct magic_set *, int, int, int, off_t, int, size_t,
47 private int dophn_exec(struct magic_set *, int, int, int, off_t, int, size_t,
49 private int doshn(struct magic_set *, int, int, int, off_t, int, size_t, int *);
50 private size_t donote(struct magic_set *, unsigned char *, size_t, size_t, int,
53 #define ELF_ALIGN(a) ((((a) + align - 1) / align) * align)
55 #define isquote(c) (strchr("'\"`", (c)) != NULL)
57 private uint16_t getu16(int, uint16_t);
58 private uint32_t getu32(int, uint32_t);
59 private uint64_t getu64(int, uint64_t);
62 getu16(int swap, uint16_t value)
72 retval.c[0] = tmpval.c[1];
73 retval.c[1] = tmpval.c[0];
81 getu32(int swap, uint32_t value)
91 retval.c[0] = tmpval.c[3];
92 retval.c[1] = tmpval.c[2];
93 retval.c[2] = tmpval.c[1];
94 retval.c[3] = tmpval.c[0];
102 getu64(int swap, uint64_t value)
112 retval.c[0] = tmpval.c[7];
113 retval.c[1] = tmpval.c[6];
114 retval.c[2] = tmpval.c[5];
115 retval.c[3] = tmpval.c[4];
116 retval.c[4] = tmpval.c[3];
117 retval.c[5] = tmpval.c[2];
118 retval.c[6] = tmpval.c[1];
119 retval.c[7] = tmpval.c[0];
126 #ifdef USE_ARRAY_FOR_64BIT_TYPES
127 # define elf_getu64(swap, array) \
128 ((swap ? ((uint64_t)getu32(swap, array[0])) << 32 : getu32(swap, array[0])) + \
129 (swap ? getu32(swap, array[1]) : ((uint64_t)getu32(swap, array[1]) << 32)))
131 # define elf_getu64(swap, value) getu64(swap, value)
134 #define xsh_addr (class == ELFCLASS32 \
137 #define xsh_sizeof (class == ELFCLASS32 \
140 #define xsh_size (class == ELFCLASS32 \
141 ? getu32(swap, sh32.sh_size) \
142 : getu64(swap, sh64.sh_size))
143 #define xsh_offset (class == ELFCLASS32 \
144 ? getu32(swap, sh32.sh_offset) \
145 : getu64(swap, sh64.sh_offset))
146 #define xsh_type (class == ELFCLASS32 \
147 ? getu32(swap, sh32.sh_type) \
148 : getu32(swap, sh64.sh_type))
149 #define xph_addr (class == ELFCLASS32 \
152 #define xph_sizeof (class == ELFCLASS32 \
155 #define xph_type (class == ELFCLASS32 \
156 ? getu32(swap, ph32.p_type) \
157 : getu32(swap, ph64.p_type))
158 #define xph_offset (off_t)(class == ELFCLASS32 \
159 ? getu32(swap, ph32.p_offset) \
160 : getu64(swap, ph64.p_offset))
161 #define xph_align (size_t)((class == ELFCLASS32 \
162 ? (off_t) (ph32.p_align ? \
163 getu32(swap, ph32.p_align) : 4) \
164 : (off_t) (ph64.p_align ? \
165 getu64(swap, ph64.p_align) : 4)))
166 #define xph_filesz (size_t)((class == ELFCLASS32 \
167 ? getu32(swap, ph32.p_filesz) \
168 : getu64(swap, ph64.p_filesz)))
169 #define xnh_addr (class == ELFCLASS32 \
172 #define xph_memsz (size_t)((class == ELFCLASS32 \
173 ? getu32(swap, ph32.p_memsz) \
174 : getu64(swap, ph64.p_memsz)))
175 #define xnh_sizeof (class == ELFCLASS32 \
178 #define xnh_type (class == ELFCLASS32 \
179 ? getu32(swap, nh32.n_type) \
180 : getu32(swap, nh64.n_type))
181 #define xnh_namesz (class == ELFCLASS32 \
182 ? getu32(swap, nh32.n_namesz) \
183 : getu32(swap, nh64.n_namesz))
184 #define xnh_descsz (class == ELFCLASS32 \
185 ? getu32(swap, nh32.n_descsz) \
186 : getu32(swap, nh64.n_descsz))
187 #define prpsoffsets(i) (class == ELFCLASS32 \
192 size_t prpsoffsets32[] = {
194 44, /* Linux (path name) */
195 28, /* Linux 2.0.36 (short name) */
199 size_t prpsoffsets64[] = {
200 16, /* FreeBSD, 64-bit */
201 56, /* Linux (path name) */
202 40, /* Linux (tested on core from 2.4.x, short name) */
203 120, /* SunOS 5.x, 64-bit */
206 #define NOFFSETS32 (sizeof prpsoffsets32 / sizeof prpsoffsets32[0])
207 #define NOFFSETS64 (sizeof prpsoffsets64 / sizeof prpsoffsets64[0])
209 #define NOFFSETS (class == ELFCLASS32 ? NOFFSETS32 : NOFFSETS64)
212 * Look through the program headers of an executable image, searching
213 * for a PT_NOTE section of type NT_PRPSINFO, with a name "CORE" or
214 * "FreeBSD"; if one is found, try looking in various places in its
215 * contents for a 16-character string containing only printable
216 * characters - if found, that string should be the name of the program
217 * that dropped core. Note: right after that 16-character string is,
218 * at least in SunOS 5.x (and possibly other SVR4-flavored systems) and
219 * Linux, a longer string (80 characters, in 5.x, probably other
220 * SVR4-flavored systems, and Linux) containing the start of the
221 * command line for that program.
223 * The signal number probably appears in a section of type NT_PRSTATUS,
224 * but that's also rather OS-dependent, in ways that are harder to
225 * dissect with heuristics, so I'm not bothering with the signal number.
226 * (I suppose the signal number could be of interest in situations where
227 * you don't have the binary of the program that dropped core; if you
228 * *do* have that binary, the debugger will probably tell you what
232 #define OS_STYLE_SVR4 0
233 #define OS_STYLE_FREEBSD 1
234 #define OS_STYLE_NETBSD 2
236 private const char *os_style_names[] = {
242 #define FLAGS_DID_CORE 1
243 #define FLAGS_DID_NOTE 2
244 #define FLAGS_DID_CORE_STYLE 4
247 dophn_core(struct magic_set *ms, int class, int swap, int fd, off_t off,
248 int num, size_t size, off_t fsize, int *flags)
253 unsigned char nbuf[BUFSIZ];
258 if (fstat(fd, &st) < 0) {
263 if (size != xph_sizeof) {
264 if (file_printf(ms, ", corrupted program header size") == -1)
270 * Loop through all the program headers.
272 for ( ; num; num--) {
273 if ((savedoffset = lseek(fd, off, SEEK_SET)) == (off_t)-1) {
277 if (read(fd, xph_addr, xph_sizeof) == -1) {
281 if (xph_offset > fsize) {
282 if (lseek(fd, savedoffset, SEEK_SET) == (off_t)-1) {
290 if (xph_type != PT_NOTE)
294 * This is a PT_NOTE section; loop through all the notes
297 if (lseek(fd, xph_offset, SEEK_SET) == (off_t)-1) {
301 bufsize = read(fd, nbuf,
302 ((xph_filesz < sizeof(nbuf)) ? xph_filesz : sizeof(nbuf)));
309 if (offset >= (size_t)bufsize)
311 offset = donote(ms, nbuf, offset, (size_t)bufsize,
312 class, swap, 4, flags);
323 donote(struct magic_set *ms, unsigned char *nbuf, size_t offset, size_t size,
324 int class, int swap, size_t align, int *flags)
332 uint32_t namesz, descsz;
334 (void)memcpy(xnh_addr, &nbuf[offset], xnh_sizeof);
335 offset += xnh_sizeof;
339 if ((namesz == 0) && (descsz == 0)) {
341 * We're out of note headers.
343 return (offset >= size) ? offset : size;
346 if (namesz & 0x80000000) {
347 (void)file_printf(ms, ", bad note name size 0x%lx",
348 (unsigned long)namesz);
352 if (descsz & 0x80000000) {
353 (void)file_printf(ms, ", bad note description size 0x%lx",
354 (unsigned long)descsz);
360 doff = ELF_ALIGN(offset + namesz);
362 if (offset + namesz > size) {
364 * We're past the end of the buffer.
369 offset = ELF_ALIGN(doff + descsz);
370 if (doff + descsz > size) {
372 * We're past the end of the buffer.
374 return (offset >= size) ? offset : size;
377 if (*flags & FLAGS_DID_NOTE)
380 if (namesz == 4 && strcmp((char *)&nbuf[noff], "GNU") == 0 &&
381 xnh_type == NT_GNU_VERSION && descsz == 16) {
383 (void)memcpy(desc, &nbuf[doff], sizeof(desc));
385 if (file_printf(ms, ", for GNU/") == -1)
387 switch (getu32(swap, desc[0])) {
389 if (file_printf(ms, "Linux") == -1)
393 if (file_printf(ms, "Hurd") == -1)
397 if (file_printf(ms, "Solaris") == -1)
401 if (file_printf(ms, "<unknown>") == -1)
404 if (file_printf(ms, " %d.%d.%d", getu32(swap, desc[1]),
405 getu32(swap, desc[2]), getu32(swap, desc[3])) == -1)
407 *flags |= FLAGS_DID_NOTE;
411 if (namesz == 7 && strcmp((char *)&nbuf[noff], "NetBSD") == 0 &&
412 xnh_type == NT_NETBSD_VERSION && descsz == 4) {
414 (void)memcpy(&desc, &nbuf[doff], sizeof(desc));
415 desc = getu32(swap, desc);
417 if (file_printf(ms, ", for NetBSD") == -1)
420 * The version number used to be stuck as 199905, and was thus
421 * basically content-free. Newer versions of NetBSD have fixed
422 * this and now use the encoding of __NetBSD_Version__:
428 * r = release ["",A-Z,Z[A-Z] but numeric]
431 if (desc > 100000000U) {
432 uint32_t ver_patch = (desc / 100) % 100;
433 uint32_t ver_rel = (desc / 10000) % 100;
434 uint32_t ver_min = (desc / 1000000) % 100;
435 uint32_t ver_maj = desc / 100000000;
437 if (file_printf(ms, " %u.%u", ver_maj, ver_min) == -1)
439 if (ver_rel == 0 && ver_patch != 0) {
440 if (file_printf(ms, ".%u", ver_patch) == -1)
442 } else if (ver_rel != 0) {
443 while (ver_rel > 26) {
444 if (file_printf(ms, "Z") == -1)
448 if (file_printf(ms, "%c", 'A' + ver_rel - 1)
453 *flags |= FLAGS_DID_NOTE;
457 if (namesz == 8 && strcmp((char *)&nbuf[noff], "FreeBSD") == 0 &&
458 xnh_type == NT_FREEBSD_VERSION && descsz == 4) {
460 (void)memcpy(&desc, &nbuf[doff], sizeof(desc));
461 desc = getu32(swap, desc);
462 if (file_printf(ms, ", for FreeBSD") == -1)
466 * Contents is __FreeBSD_version, whose relation to OS
467 * versions is defined by a huge table in the Porter's
468 * Handbook. This is the general scheme:
471 * Mmp000 (before 4.10)
472 * Mmi0p0 (before 5.0)
475 * Development branches:
476 * Mmpxxx (before 4.6)
477 * Mmp1xx (before 4.10)
478 * Mmi1xx (before 5.0)
484 * i = minor version increment (491000 -> 4.10)
488 * The first release of FreeBSD to use ELF by default
491 if (desc == 460002) {
492 if (file_printf(ms, " 4.6.2") == -1)
494 } else if (desc < 460100) {
495 if (file_printf(ms, " %d.%d", desc / 100000,
496 desc / 10000 % 10) == -1)
498 if (desc / 1000 % 10 > 0)
499 if (file_printf(ms, ".%d", desc / 1000 % 10)
502 if ((desc % 1000 > 0) || (desc % 100000 == 0))
503 if (file_printf(ms, " (%d)", desc) == -1)
505 } else if (desc < 500000) {
506 if (file_printf(ms, " %d.%d", desc / 100000,
507 desc / 10000 % 10 + desc / 1000 % 10) == -1)
509 if (desc / 100 % 10 > 0) {
510 if (file_printf(ms, " (%d)", desc) == -1)
512 } else if (desc / 10 % 10 > 0) {
513 if (file_printf(ms, ".%d", desc / 10 % 10)
518 if (file_printf(ms, " %d.%d", desc / 100000,
519 desc / 1000 % 100) == -1)
521 if ((desc / 100 % 10 > 0) ||
522 (desc % 100000 / 100 == 0)) {
523 if (file_printf(ms, " (%d)", desc) == -1)
525 } else if (desc / 10 % 10 > 0) {
526 if (file_printf(ms, ".%d", desc / 10 % 10)
531 *flags |= FLAGS_DID_NOTE;
535 if (namesz == 8 && strcmp((char *)&nbuf[noff], "OpenBSD") == 0 &&
536 xnh_type == NT_OPENBSD_VERSION && descsz == 4) {
537 if (file_printf(ms, ", for OpenBSD") == -1)
539 /* Content of note is always 0 */
540 *flags |= FLAGS_DID_NOTE;
544 if (namesz == 10 && strcmp((char *)&nbuf[noff], "DragonFly") == 0 &&
545 xnh_type == NT_DRAGONFLY_VERSION && descsz == 4) {
547 if (file_printf(ms, ", for DragonFly") == -1)
549 (void)memcpy(&desc, &nbuf[doff], sizeof(desc));
550 desc = getu32(swap, desc);
551 if (file_printf(ms, " %d.%d.%d", desc / 100000,
552 desc / 10000 % 10, desc % 10000) == -1)
554 *flags |= FLAGS_DID_NOTE;
560 * Sigh. The 2.0.36 kernel in Debian 2.1, at
561 * least, doesn't correctly implement name
562 * sections, in core dumps, as specified by
563 * the "Program Linking" section of "UNIX(R) System
564 * V Release 4 Programmer's Guide: ANSI C and
565 * Programming Support Tools", because my copy
566 * clearly says "The first 'namesz' bytes in 'name'
567 * contain a *null-terminated* [emphasis mine]
568 * character representation of the entry's owner
569 * or originator", but the 2.0.36 kernel code
570 * doesn't include the terminating null in the
573 if ((namesz == 4 && strncmp((char *)&nbuf[noff], "CORE", 4) == 0) ||
574 (namesz == 5 && strcmp((char *)&nbuf[noff], "CORE") == 0)) {
575 os_style = OS_STYLE_SVR4;
578 if ((namesz == 8 && strcmp((char *)&nbuf[noff], "FreeBSD") == 0)) {
579 os_style = OS_STYLE_FREEBSD;
582 if ((namesz >= 11 && strncmp((char *)&nbuf[noff], "NetBSD-CORE", 11)
584 os_style = OS_STYLE_NETBSD;
588 if ((*flags & FLAGS_DID_CORE) != 0)
591 if (os_style != -1 && (*flags & FLAGS_DID_CORE_STYLE) == 0) {
592 if (file_printf(ms, ", %s-style", os_style_names[os_style])
595 *flags |= FLAGS_DID_CORE_STYLE;
599 case OS_STYLE_NETBSD:
600 if (xnh_type == NT_NETBSD_CORE_PROCINFO) {
603 * Extract the program name. It is at
604 * offset 0x7c, and is up to 32-bytes,
605 * including the terminating NUL.
607 if (file_printf(ms, ", from '%.31s'",
608 &nbuf[doff + 0x7c]) == -1)
612 * Extract the signal number. It is at
615 (void)memcpy(&signo, &nbuf[doff + 0x08],
617 if (file_printf(ms, " (signal %u)",
618 getu32(swap, signo)) == -1)
620 *flags |= FLAGS_DID_CORE;
626 if (xnh_type == NT_PRPSINFO) {
630 * Extract the program name. We assume
631 * it to be 16 characters (that's what it
632 * is in SunOS 5.x and Linux).
634 * Unfortunately, it's at a different offset
635 * in various OSes, so try multiple offsets.
636 * If the characters aren't all printable,
639 for (i = 0; i < NOFFSETS; i++) {
640 unsigned char *cname, *cp;
641 size_t reloffset = prpsoffsets(i);
642 size_t noffset = doff + reloffset;
643 for (j = 0; j < 16; j++, noffset++,
646 * Make sure we're not past
647 * the end of the buffer; if
648 * we are, just give up.
654 * Make sure we're not past
655 * the end of the contents;
656 * if we are, this obviously
657 * isn't the right offset.
659 if (reloffset >= descsz)
681 if (!isprint(c) || isquote(c))
688 cname = (unsigned char *)
689 &nbuf[doff + prpsoffsets(i)];
690 for (cp = cname; *cp && isprint(*cp); cp++)
694 if (file_printf(ms, ", from '%.*s'",
695 (int)(cp - cname), cname) == -1)
697 *flags |= FLAGS_DID_CORE;
711 doshn(struct magic_set *ms, int class, int swap, int fd, off_t off, int num,
712 size_t size, int *flags)
720 if (size != xsh_sizeof) {
721 if (file_printf(ms, ", corrupted section header size") == -1)
726 if (lseek(fd, off, SEEK_SET) == (off_t)-1) {
731 for ( ; num; num--) {
732 if (read(fd, xsh_addr, xsh_sizeof) == -1) {
744 if ((off = lseek(fd, (off_t)0, SEEK_CUR)) ==
749 if ((nbuf = malloc((size_t)xsh_size)) == NULL) {
750 file_error(ms, errno, "Cannot allocate memory"
754 if ((noff = lseek(fd, (off_t)xsh_offset, SEEK_SET)) ==
760 if (read(fd, nbuf, (size_t)xsh_size) !=
769 if (noff >= (size_t)xsh_size)
771 noff = donote(ms, nbuf, (size_t)noff,
772 (size_t)xsh_size, class, swap, 4,
777 if ((lseek(fd, off, SEEK_SET)) == (off_t)-1) {
786 if (file_printf(ms, ", %sstripped", stripped ? "" : "not ") == -1)
792 * Look through the program headers of an executable image, searching
793 * for a PT_INTERP section; if one is found, it's dynamically linked,
794 * otherwise it's statically linked.
797 dophn_exec(struct magic_set *ms, int class, int swap, int fd, off_t off,
798 int num, size_t size, off_t fsize, int *flags)
802 const char *linking_style = "statically";
803 const char *shared_libraries = "";
804 unsigned char nbuf[BUFSIZ];
806 size_t offset, align;
807 off_t savedoffset = (off_t)-1;
810 if (fstat(fd, &st) < 0) {
815 if (size != xph_sizeof) {
816 if (file_printf(ms, ", corrupted program header size") == -1)
821 if (lseek(fd, off, SEEK_SET) == (off_t)-1) {
826 for ( ; num; num--) {
827 if (read(fd, xph_addr, xph_sizeof) == -1) {
831 if (xph_offset > st.st_size && savedoffset != (off_t)-1) {
832 if (lseek(fd, savedoffset, SEEK_SET) == (off_t)-1) {
839 if ((savedoffset = lseek(fd, (off_t)0, SEEK_CUR)) == (off_t)-1) {
844 if (xph_offset > fsize) {
845 if (lseek(fd, savedoffset, SEEK_SET) == (off_t)-1) {
854 linking_style = "dynamically";
857 shared_libraries = " (uses shared libs)";
860 if ((align = xph_align) & 0x80000000) {
862 ", invalid note alignment 0x%lx",
863 (unsigned long)align) == -1)
868 * This is a PT_NOTE section; loop through all the notes
871 if (lseek(fd, xph_offset, SEEK_SET)
876 bufsize = read(fd, nbuf, ((xph_filesz < sizeof(nbuf)) ?
877 xph_filesz : sizeof(nbuf)));
884 if (offset >= (size_t)bufsize)
886 offset = donote(ms, nbuf, offset,
887 (size_t)bufsize, class, swap, align,
892 if (lseek(fd, savedoffset, SEEK_SET) == (off_t)-1) {
901 if (file_printf(ms, ", %s linked%s", linking_style, shared_libraries)
909 file_tryelf(struct magic_set *ms, int fd, const unsigned char *buf,
914 char c[sizeof (int32_t)];
923 * If we cannot seek, it must be a pipe, socket or fifo.
925 if((lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) && (errno == ESPIPE))
926 fd = file_pipe2file(ms, fd, buf, nbytes);
928 if (fstat(fd, &st) == -1) {
935 * ELF executables have multiple section headers in arbitrary
936 * file locations and thus file(1) cannot determine it from easily.
937 * Instead we traverse thru all section headers until a symbol table
938 * one is found or else the binary is stripped.
940 if (buf[EI_MAG0] != ELFMAG0
941 || (buf[EI_MAG1] != ELFMAG1 && buf[EI_MAG1] != OLFMAG1)
942 || buf[EI_MAG2] != ELFMAG2 || buf[EI_MAG3] != ELFMAG3)
946 class = buf[EI_CLASS];
948 if (class == ELFCLASS32) {
952 if (nbytes <= sizeof (Elf32_Ehdr))
957 (void) memcpy(&elfhdr, buf, sizeof elfhdr);
958 swap = (u.c[sizeof(int32_t) - 1] + 1) != elfhdr.e_ident[EI_DATA];
960 type = getu16(swap, elfhdr.e_type);
964 if (dophn_core(ms, class, swap, fd,
965 (off_t)getu32(swap, elfhdr.e_phoff),
966 getu16(swap, elfhdr.e_phnum),
967 (size_t)getu16(swap, elfhdr.e_phentsize),
968 fsize, &flags) == -1)
974 if (dophn_exec(ms, class, swap,
975 fd, (off_t)getu32(swap, elfhdr.e_phoff),
976 getu16(swap, elfhdr.e_phnum),
977 (size_t)getu16(swap, elfhdr.e_phentsize),
978 fsize, &flags) == -1)
980 if (doshn(ms, class, swap, fd,
981 (off_t)getu32(swap, elfhdr.e_shoff),
982 getu16(swap, elfhdr.e_shnum),
983 (size_t)getu16(swap, elfhdr.e_shentsize),
994 if (class == ELFCLASS64) {
996 if (nbytes <= sizeof (Elf64_Ehdr))
1001 (void) memcpy(&elfhdr, buf, sizeof elfhdr);
1002 swap = (u.c[sizeof(int32_t) - 1] + 1) != elfhdr.e_ident[EI_DATA];
1004 if (getu16(swap, elfhdr.e_type) == ET_CORE) {
1006 if (dophn_core(ms, class, swap, fd,
1007 (off_t)elf_getu64(swap, elfhdr.e_phoff),
1008 getu16(swap, elfhdr.e_phnum),
1009 (size_t)getu16(swap, elfhdr.e_phentsize),
1010 fsize, &flags) == -1)
1016 if (getu16(swap, elfhdr.e_type) == ET_EXEC) {
1017 if (dophn_exec(ms, class, swap, fd,
1018 (off_t)elf_getu64(swap, elfhdr.e_phoff),
1019 getu16(swap, elfhdr.e_phnum),
1020 (size_t)getu16(swap, elfhdr.e_phentsize),
1021 fsize, &flags) == -1)
1024 if (doshn(ms, class, swap, fd,
1025 (off_t)elf_getu64(swap, elfhdr.e_shoff),
1026 getu16(swap, elfhdr.e_shnum),
1027 (size_t)getu16(swap, elfhdr.e_shentsize), &flags)