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
30 FILE_RCSID("@(#)$File: readelf.c,v 1.168 2019/12/16 03:49:19 christos Exp $")
45 private int dophn_core(struct magic_set
*, int, int, int, off_t
, int, size_t,
46 off_t
, int *, uint16_t *);
48 private int dophn_exec(struct magic_set
*, int, int, int, off_t
, int, size_t,
49 off_t
, int, int *, uint16_t *);
50 private int doshn(struct magic_set
*, int, int, int, off_t
, int, size_t,
51 off_t
, int, int, int *, uint16_t *);
52 private size_t donote(struct magic_set
*, void *, size_t, size_t, int,
53 int, size_t, int *, uint16_t *, int, off_t
, int, off_t
);
55 #define ELF_ALIGN(a) ((((a) + align - 1) / align) * align)
57 #define isquote(c) (strchr("'\"`", (c)) != NULL)
59 private uint16_t getu16(int, uint16_t);
60 private uint32_t getu32(int, uint32_t);
61 private uint64_t getu64(int, uint64_t);
64 #define MAX_SHNUM 32768
65 #define SIZE_UNKNOWN CAST(off_t, -1)
68 toomany(struct magic_set
*ms
, const char *name
, uint16_t num
)
70 if (file_printf(ms
, ", too many %s (%u)", name
, num
) == -1)
76 getu16(int swap
, uint16_t value
)
86 retval
.c
[0] = tmpval
.c
[1];
87 retval
.c
[1] = tmpval
.c
[0];
95 getu32(int swap
, uint32_t value
)
105 retval
.c
[0] = tmpval
.c
[3];
106 retval
.c
[1] = tmpval
.c
[2];
107 retval
.c
[2] = tmpval
.c
[1];
108 retval
.c
[3] = tmpval
.c
[0];
116 getu64(int swap
, uint64_t value
)
126 retval
.c
[0] = tmpval
.c
[7];
127 retval
.c
[1] = tmpval
.c
[6];
128 retval
.c
[2] = tmpval
.c
[5];
129 retval
.c
[3] = tmpval
.c
[4];
130 retval
.c
[4] = tmpval
.c
[3];
131 retval
.c
[5] = tmpval
.c
[2];
132 retval
.c
[6] = tmpval
.c
[1];
133 retval
.c
[7] = tmpval
.c
[0];
140 #define elf_getu16(swap, value) getu16(swap, value)
141 #define elf_getu32(swap, value) getu32(swap, value)
142 #define elf_getu64(swap, value) getu64(swap, value)
144 #define xsh_addr (clazz == ELFCLASS32 \
145 ? CAST(void *, &sh32) \
146 : CAST(void *, &sh64))
147 #define xsh_sizeof (clazz == ELFCLASS32 \
150 #define xsh_size CAST(size_t, (clazz == ELFCLASS32 \
151 ? elf_getu32(swap, sh32.sh_size) \
152 : elf_getu64(swap, sh64.sh_size)))
153 #define xsh_offset CAST(off_t, (clazz == ELFCLASS32 \
154 ? elf_getu32(swap, sh32.sh_offset) \
155 : elf_getu64(swap, sh64.sh_offset)))
156 #define xsh_type (clazz == ELFCLASS32 \
157 ? elf_getu32(swap, sh32.sh_type) \
158 : elf_getu32(swap, sh64.sh_type))
159 #define xsh_name (clazz == ELFCLASS32 \
160 ? elf_getu32(swap, sh32.sh_name) \
161 : elf_getu32(swap, sh64.sh_name))
163 #define xph_addr (clazz == ELFCLASS32 \
164 ? CAST(void *, &ph32) \
165 : CAST(void *, &ph64))
166 #define xph_sizeof (clazz == ELFCLASS32 \
169 #define xph_type (clazz == ELFCLASS32 \
170 ? elf_getu32(swap, ph32.p_type) \
171 : elf_getu32(swap, ph64.p_type))
172 #define xph_offset CAST(off_t, (clazz == ELFCLASS32 \
173 ? elf_getu32(swap, ph32.p_offset) \
174 : elf_getu64(swap, ph64.p_offset)))
175 #define xph_align CAST(size_t, (clazz == ELFCLASS32 \
176 ? CAST(off_t, (ph32.p_align ? \
177 elf_getu32(swap, ph32.p_align) : 4))\
178 : CAST(off_t, (ph64.p_align ? \
179 elf_getu64(swap, ph64.p_align) : 4))))
180 #define xph_vaddr CAST(size_t, (clazz == ELFCLASS32 \
181 ? CAST(off_t, (ph32.p_vaddr ? \
182 elf_getu32(swap, ph32.p_vaddr) : 4))\
183 : CAST(off_t, (ph64.p_vaddr ? \
184 elf_getu64(swap, ph64.p_vaddr) : 4))))
185 #define xph_filesz CAST(size_t, (clazz == ELFCLASS32 \
186 ? elf_getu32(swap, ph32.p_filesz) \
187 : elf_getu64(swap, ph64.p_filesz)))
188 #define xph_memsz CAST(size_t, ((clazz == ELFCLASS32 \
189 ? elf_getu32(swap, ph32.p_memsz) \
190 : elf_getu64(swap, ph64.p_memsz))))
191 #define xnh_addr (clazz == ELFCLASS32 \
192 ? CAST(void *, &nh32) \
193 : CAST(void *, &nh64))
194 #define xnh_sizeof (clazz == ELFCLASS32 \
197 #define xnh_type (clazz == ELFCLASS32 \
198 ? elf_getu32(swap, nh32.n_type) \
199 : elf_getu32(swap, nh64.n_type))
200 #define xnh_namesz (clazz == ELFCLASS32 \
201 ? elf_getu32(swap, nh32.n_namesz) \
202 : elf_getu32(swap, nh64.n_namesz))
203 #define xnh_descsz (clazz == ELFCLASS32 \
204 ? elf_getu32(swap, nh32.n_descsz) \
205 : elf_getu32(swap, nh64.n_descsz))
207 #define xdh_addr (clazz == ELFCLASS32 \
208 ? CAST(void *, &dh32) \
209 : CAST(void *, &dh64))
210 #define xdh_sizeof (clazz == ELFCLASS32 \
213 #define xdh_tag (clazz == ELFCLASS32 \
214 ? elf_getu32(swap, dh32.d_tag) \
215 : elf_getu64(swap, dh64.d_tag))
216 #define xdh_val (clazz == ELFCLASS32 \
217 ? elf_getu32(swap, dh32.d_un.d_val) \
218 : elf_getu64(swap, dh64.d_un.d_val))
220 #define xcap_addr (clazz == ELFCLASS32 \
221 ? CAST(void *, &cap32) \
222 : CAST(void *, &cap64))
223 #define xcap_sizeof (clazz == ELFCLASS32 \
226 #define xcap_tag (clazz == ELFCLASS32 \
227 ? elf_getu32(swap, cap32.c_tag) \
228 : elf_getu64(swap, cap64.c_tag))
229 #define xcap_val (clazz == ELFCLASS32 \
230 ? elf_getu32(swap, cap32.c_un.c_val) \
231 : elf_getu64(swap, cap64.c_un.c_val))
233 #define xauxv_addr (clazz == ELFCLASS32 \
234 ? CAST(void *, &auxv32) \
235 : CAST(void *, &auxv64))
236 #define xauxv_sizeof (clazz == ELFCLASS32 \
239 #define xauxv_type (clazz == ELFCLASS32 \
240 ? elf_getu32(swap, auxv32.a_type) \
241 : elf_getu64(swap, auxv64.a_type))
242 #define xauxv_val (clazz == ELFCLASS32 \
243 ? elf_getu32(swap, auxv32.a_v) \
244 : elf_getu64(swap, auxv64.a_v))
246 #define prpsoffsets(i) (clazz == ELFCLASS32 \
252 * Try larger offsets first to avoid false matches
253 * from earlier data that happen to look like strings.
255 static const size_t prpsoffsets32
[] = {
257 104, /* SunOS 5.x (command line) */
258 88, /* SunOS 5.x (short name) */
259 #endif /* USE_NT_PSINFO */
261 100, /* SunOS 5.x (command line) */
262 84, /* SunOS 5.x (short name) */
264 44, /* Linux (command line) */
265 28, /* Linux (short name) */
267 48, /* Linux PowerPC (command line) */
268 32, /* Linux PowerPC (short name) */
273 static const size_t prpsoffsets64
[] = {
275 152, /* SunOS 5.x (command line) */
276 136, /* SunOS 5.x (short name) */
277 #endif /* USE_NT_PSINFO */
279 136, /* SunOS 5.x, 64-bit (command line) */
280 120, /* SunOS 5.x, 64-bit (short name) */
282 56, /* Linux (command line) */
283 40, /* Linux (tested on core from 2.4.x, short name) */
285 16, /* FreeBSD, 64-bit */
288 #define NOFFSETS32 __arraycount(prpsoffsets32)
289 #define NOFFSETS64 __arraycount(prpsoffsets64)
291 #define NOFFSETS (clazz == ELFCLASS32 ? NOFFSETS32 : NOFFSETS64)
294 * Look through the program headers of an executable image, searching
295 * for a PT_NOTE section of type NT_PRPSINFO, with a name "CORE" or
296 * "FreeBSD"; if one is found, try looking in various places in its
297 * contents for a 16-character string containing only printable
298 * characters - if found, that string should be the name of the program
299 * that dropped core. Note: right after that 16-character string is,
300 * at least in SunOS 5.x (and possibly other SVR4-flavored systems) and
301 * Linux, a longer string (80 characters, in 5.x, probably other
302 * SVR4-flavored systems, and Linux) containing the start of the
303 * command line for that program.
305 * SunOS 5.x core files contain two PT_NOTE sections, with the types
306 * NT_PRPSINFO (old) and NT_PSINFO (new). These structs contain the
307 * same info about the command name and command line, so it probably
308 * isn't worthwhile to look for NT_PSINFO, but the offsets are provided
309 * above (see USE_NT_PSINFO), in case we ever decide to do so. The
310 * NT_PRPSINFO and NT_PSINFO sections are always in order and adjacent;
311 * the SunOS 5.x file command relies on this (and prefers the latter).
313 * The signal number probably appears in a section of type NT_PRSTATUS,
314 * but that's also rather OS-dependent, in ways that are harder to
315 * dissect with heuristics, so I'm not bothering with the signal number.
316 * (I suppose the signal number could be of interest in situations where
317 * you don't have the binary of the program that dropped core; if you
318 * *do* have that binary, the debugger will probably tell you what
322 #define OS_STYLE_SVR4 0
323 #define OS_STYLE_FREEBSD 1
324 #define OS_STYLE_NETBSD 2
326 private const char os_style_names
[][8] = {
332 #define FLAGS_CORE_STYLE 0x0003
334 #define FLAGS_DID_CORE 0x0004
335 #define FLAGS_DID_OS_NOTE 0x0008
336 #define FLAGS_DID_BUILD_ID 0x0010
337 #define FLAGS_DID_CORE_STYLE 0x0020
338 #define FLAGS_DID_NETBSD_PAX 0x0040
339 #define FLAGS_DID_NETBSD_MARCH 0x0080
340 #define FLAGS_DID_NETBSD_CMODEL 0x0100
341 #define FLAGS_DID_NETBSD_EMULATION 0x0200
342 #define FLAGS_DID_NETBSD_UNKNOWN 0x0400
343 #define FLAGS_IS_CORE 0x0800
344 #define FLAGS_DID_AUXV 0x1000
347 dophn_core(struct magic_set
*ms
, int clazz
, int swap
, int fd
, off_t off
,
348 int num
, size_t size
, off_t fsize
, int *flags
, uint16_t *notecount
)
353 unsigned char nbuf
[BUFSIZ
];
359 if (file_printf(ms
, ", no program header") == -1)
363 if (size
!= xph_sizeof
) {
364 if (file_printf(ms
, ", corrupted program header size") == -1)
370 * Loop through all the program headers.
372 for ( ; num
; num
--) {
373 if (pread(fd
, xph_addr
, xph_sizeof
, off
) <
374 CAST(ssize_t
, xph_sizeof
)) {
380 if (fsize
!= SIZE_UNKNOWN
&& xph_offset
> fsize
) {
381 /* Perhaps warn here */
385 if (xph_type
!= PT_NOTE
)
389 * This is a PT_NOTE section; loop through all the notes
392 len
= xph_filesz
< sizeof(nbuf
) ? xph_filesz
: sizeof(nbuf
);
393 if ((bufsize
= pread(fd
, nbuf
, len
, xph_offset
)) == -1) {
399 if (offset
>= CAST(size_t, bufsize
))
401 offset
= donote(ms
, nbuf
, offset
, CAST(size_t, bufsize
),
402 clazz
, swap
, 4, flags
, notecount
, fd
, ph_off
,
414 do_note_netbsd_version(struct magic_set
*ms
, int swap
, void *v
)
417 memcpy(&desc
, v
, sizeof(desc
));
418 desc
= elf_getu32(swap
, desc
);
420 if (file_printf(ms
, ", for NetBSD") == -1)
423 * The version number used to be stuck as 199905, and was thus
424 * basically content-free. Newer versions of NetBSD have fixed
425 * this and now use the encoding of __NetBSD_Version__:
431 * r = release ["",A-Z,Z[A-Z] but numeric]
434 if (desc
> 100000000U) {
435 uint32_t ver_patch
= (desc
/ 100) % 100;
436 uint32_t ver_rel
= (desc
/ 10000) % 100;
437 uint32_t ver_min
= (desc
/ 1000000) % 100;
438 uint32_t ver_maj
= desc
/ 100000000;
440 if (file_printf(ms
, " %u.%u", ver_maj
, ver_min
) == -1)
442 if (ver_rel
== 0 && ver_patch
!= 0) {
443 if (file_printf(ms
, ".%u", ver_patch
) == -1)
445 } else if (ver_rel
!= 0) {
446 while (ver_rel
> 26) {
447 if (file_printf(ms
, "Z") == -1)
451 if (file_printf(ms
, "%c", 'A' + ver_rel
- 1)
460 do_note_freebsd_version(struct magic_set
*ms
, int swap
, void *v
)
464 memcpy(&desc
, v
, sizeof(desc
));
465 desc
= elf_getu32(swap
, desc
);
466 if (file_printf(ms
, ", for FreeBSD") == -1)
470 * Contents is __FreeBSD_version, whose relation to OS
471 * versions is defined by a huge table in the Porter's
472 * Handbook. This is the general scheme:
475 * Mmp000 (before 4.10)
476 * Mmi0p0 (before 5.0)
479 * Development branches:
480 * Mmpxxx (before 4.6)
481 * Mmp1xx (before 4.10)
482 * Mmi1xx (before 5.0)
488 * i = minor version increment (491000 -> 4.10)
492 * The first release of FreeBSD to use ELF by default
495 if (desc
== 460002) {
496 if (file_printf(ms
, " 4.6.2") == -1)
498 } else if (desc
< 460100) {
499 if (file_printf(ms
, " %d.%d", desc
/ 100000,
500 desc
/ 10000 % 10) == -1)
502 if (desc
/ 1000 % 10 > 0)
503 if (file_printf(ms
, ".%d", desc
/ 1000 % 10) == -1)
505 if ((desc
% 1000 > 0) || (desc
% 100000 == 0))
506 if (file_printf(ms
, " (%d)", desc
) == -1)
508 } else if (desc
< 500000) {
509 if (file_printf(ms
, " %d.%d", desc
/ 100000,
510 desc
/ 10000 % 10 + desc
/ 1000 % 10) == -1)
512 if (desc
/ 100 % 10 > 0) {
513 if (file_printf(ms
, " (%d)", desc
) == -1)
515 } else if (desc
/ 10 % 10 > 0) {
516 if (file_printf(ms
, ".%d", desc
/ 10 % 10) == -1)
520 if (file_printf(ms
, " %d.%d", desc
/ 100000,
521 desc
/ 1000 % 100) == -1)
523 if ((desc
/ 100 % 10 > 0) ||
524 (desc
% 100000 / 100 == 0)) {
525 if (file_printf(ms
, " (%d)", desc
) == -1)
527 } else if (desc
/ 10 % 10 > 0) {
528 if (file_printf(ms
, ".%d", desc
/ 10 % 10) == -1)
537 do_bid_note(struct magic_set
*ms
, unsigned char *nbuf
, uint32_t type
,
538 int swap
__attribute__((__unused__
)), uint32_t namesz
, uint32_t descsz
,
539 size_t noff
, size_t doff
, int *flags
)
541 if (namesz
== 4 && strcmp(RCAST(char *, &nbuf
[noff
]), "GNU") == 0 &&
542 type
== NT_GNU_BUILD_ID
&& (descsz
>= 4 && descsz
<= 20)) {
546 *flags
|= FLAGS_DID_BUILD_ID
;
561 if (file_printf(ms
, ", BuildID[%s]=", btype
) == -1)
563 memcpy(desc
, &nbuf
[doff
], descsz
);
564 for (i
= 0; i
< descsz
; i
++)
565 if (file_printf(ms
, "%02x", desc
[i
]) == -1)
569 if (namesz
== 4 && strcmp(RCAST(char *, &nbuf
[noff
]), "Go") == 0 &&
570 type
== NT_GO_BUILD_ID
&& descsz
< 128) {
571 if (file_printf(ms
, ", Go BuildID=%.*s",
572 CAST(int, descsz
), RCAST(char *, &nbuf
[doff
])) == -1)
580 do_os_note(struct magic_set
*ms
, unsigned char *nbuf
, uint32_t type
,
581 int swap
, uint32_t namesz
, uint32_t descsz
,
582 size_t noff
, size_t doff
, int *flags
)
584 const char *name
= RCAST(const char *, &nbuf
[noff
]);
586 if (namesz
== 5 && strcmp(name
, "SuSE") == 0 &&
587 type
== NT_GNU_VERSION
&& descsz
== 2) {
588 *flags
|= FLAGS_DID_OS_NOTE
;
589 if (file_printf(ms
, ", for SuSE %d.%d", nbuf
[doff
],
590 nbuf
[doff
+ 1]) == -1)
595 if (namesz
== 4 && strcmp(name
, "GNU") == 0 &&
596 type
== NT_GNU_VERSION
&& descsz
== 16) {
598 memcpy(desc
, &nbuf
[doff
], sizeof(desc
));
600 *flags
|= FLAGS_DID_OS_NOTE
;
601 if (file_printf(ms
, ", for GNU/") == -1)
603 switch (elf_getu32(swap
, desc
[0])) {
605 if (file_printf(ms
, "Linux") == -1)
609 if (file_printf(ms
, "Hurd") == -1)
613 if (file_printf(ms
, "Solaris") == -1)
616 case GNU_OS_KFREEBSD
:
617 if (file_printf(ms
, "kFreeBSD") == -1)
621 if (file_printf(ms
, "kNetBSD") == -1)
625 if (file_printf(ms
, "<unknown>") == -1)
628 if (file_printf(ms
, " %d.%d.%d", elf_getu32(swap
, desc
[1]),
629 elf_getu32(swap
, desc
[2]), elf_getu32(swap
, desc
[3])) == -1)
634 if (namesz
== 7 && strcmp(name
, "NetBSD") == 0) {
635 if (type
== NT_NETBSD_VERSION
&& descsz
== 4) {
636 *flags
|= FLAGS_DID_OS_NOTE
;
637 if (do_note_netbsd_version(ms
, swap
, &nbuf
[doff
]) == -1)
643 if (namesz
== 8 && strcmp(name
, "FreeBSD") == 0) {
644 if (type
== NT_FREEBSD_VERSION
&& descsz
== 4) {
645 *flags
|= FLAGS_DID_OS_NOTE
;
646 if (do_note_freebsd_version(ms
, swap
, &nbuf
[doff
])
653 if (namesz
== 8 && strcmp(name
, "OpenBSD") == 0 &&
654 type
== NT_OPENBSD_VERSION
&& descsz
== 4) {
655 *flags
|= FLAGS_DID_OS_NOTE
;
656 if (file_printf(ms
, ", for OpenBSD") == -1)
658 /* Content of note is always 0 */
662 if (namesz
== 10 && strcmp(name
, "DragonFly") == 0 &&
663 type
== NT_DRAGONFLY_VERSION
&& descsz
== 4) {
665 *flags
|= FLAGS_DID_OS_NOTE
;
666 if (file_printf(ms
, ", for DragonFly") == -1)
668 memcpy(&desc
, &nbuf
[doff
], sizeof(desc
));
669 desc
= elf_getu32(swap
, desc
);
670 if (file_printf(ms
, " %d.%d.%d", desc
/ 100000,
671 desc
/ 10000 % 10, desc
% 10000) == -1)
679 do_pax_note(struct magic_set
*ms
, unsigned char *nbuf
, uint32_t type
,
680 int swap
, uint32_t namesz
, uint32_t descsz
,
681 size_t noff
, size_t doff
, int *flags
)
683 const char *name
= RCAST(const char *, &nbuf
[noff
]);
685 if (namesz
== 4 && strcmp(name
, "PaX") == 0 &&
686 type
== NT_NETBSD_PAX
&& descsz
== 4) {
687 static const char *pax
[] = {
699 *flags
|= FLAGS_DID_NETBSD_PAX
;
700 memcpy(&desc
, &nbuf
[doff
], sizeof(desc
));
701 desc
= elf_getu32(swap
, desc
);
703 if (desc
&& file_printf(ms
, ", PaX: ") == -1)
706 for (i
= 0; i
< __arraycount(pax
); i
++) {
707 if (((1 << CAST(int, i
)) & desc
) == 0)
709 if (file_printf(ms
, "%s%s", did
++ ? "," : "",
719 do_core_note(struct magic_set
*ms
, unsigned char *nbuf
, uint32_t type
,
720 int swap
, uint32_t namesz
, uint32_t descsz
,
721 size_t noff
, size_t doff
, int *flags
, size_t size
, int clazz
)
724 const char *name
= RCAST(const char *, &nbuf
[noff
]);
728 * Sigh. The 2.0.36 kernel in Debian 2.1, at
729 * least, doesn't correctly implement name
730 * sections, in core dumps, as specified by
731 * the "Program Linking" section of "UNIX(R) System
732 * V Release 4 Programmer's Guide: ANSI C and
733 * Programming Support Tools", because my copy
734 * clearly says "The first 'namesz' bytes in 'name'
735 * contain a *null-terminated* [emphasis mine]
736 * character representation of the entry's owner
737 * or originator", but the 2.0.36 kernel code
738 * doesn't include the terminating null in the
741 if ((namesz
== 4 && strncmp(name
, "CORE", 4) == 0) ||
742 (namesz
== 5 && strcmp(name
, "CORE") == 0)) {
743 os_style
= OS_STYLE_SVR4
;
746 if ((namesz
== 8 && strcmp(name
, "FreeBSD") == 0)) {
747 os_style
= OS_STYLE_FREEBSD
;
750 if ((namesz
>= 11 && strncmp(name
, "NetBSD-CORE", 11)
752 os_style
= OS_STYLE_NETBSD
;
755 if (os_style
!= -1 && (*flags
& FLAGS_DID_CORE_STYLE
) == 0) {
756 if (file_printf(ms
, ", %s-style", os_style_names
[os_style
])
759 *flags
|= FLAGS_DID_CORE_STYLE
;
764 case OS_STYLE_NETBSD
:
765 if (type
== NT_NETBSD_CORE_PROCINFO
) {
767 struct NetBSD_elfcore_procinfo pi
;
768 memset(&pi
, 0, sizeof(pi
));
769 memcpy(&pi
, nbuf
+ doff
, MIN(descsz
, sizeof(pi
)));
771 if (file_printf(ms
, ", from '%.31s', pid=%u, uid=%u, "
772 "gid=%u, nlwps=%u, lwp=%u (signal %u/code %u)",
773 file_printable(sbuf
, sizeof(sbuf
),
774 RCAST(char *, pi
.cpi_name
), sizeof(pi
.cpi_name
)),
775 elf_getu32(swap
, CAST(uint32_t, pi
.cpi_pid
)),
776 elf_getu32(swap
, pi
.cpi_euid
),
777 elf_getu32(swap
, pi
.cpi_egid
),
778 elf_getu32(swap
, pi
.cpi_nlwps
),
779 elf_getu32(swap
, CAST(uint32_t, pi
.cpi_siglwp
)),
780 elf_getu32(swap
, pi
.cpi_signo
),
781 elf_getu32(swap
, pi
.cpi_sigcode
)) == -1)
784 *flags
|= FLAGS_DID_CORE
;
789 case OS_STYLE_FREEBSD
:
790 if (type
== NT_PRPSINFO
&& *flags
& FLAGS_IS_CORE
) {
791 size_t argoff
, pidoff
;
793 if (clazz
== ELFCLASS32
)
796 argoff
= 4 + 4 + 8 + 17;
797 if (file_printf(ms
, ", from '%.80s'", nbuf
+ doff
+
800 pidoff
= argoff
+ 81 + 2;
801 if (doff
+ pidoff
+ 4 <= size
) {
802 if (file_printf(ms
, ", pid=%u",
803 elf_getu32(swap
, *RCAST(uint32_t *, (nbuf
+
804 doff
+ pidoff
)))) == -1)
807 *flags
|= FLAGS_DID_CORE
;
812 if (type
== NT_PRPSINFO
&& *flags
& FLAGS_IS_CORE
) {
816 * Extract the program name. We assume
817 * it to be 16 characters (that's what it
818 * is in SunOS 5.x and Linux).
820 * Unfortunately, it's at a different offset
821 * in various OSes, so try multiple offsets.
822 * If the characters aren't all printable,
825 for (i
= 0; i
< NOFFSETS
; i
++) {
826 unsigned char *cname
, *cp
;
827 size_t reloffset
= prpsoffsets(i
);
828 size_t noffset
= doff
+ reloffset
;
830 for (j
= 0; j
< 16; j
++, noffset
++,
833 * Make sure we're not past
834 * the end of the buffer; if
835 * we are, just give up.
841 * Make sure we're not past
842 * the end of the contents;
843 * if we are, this obviously
844 * isn't the right offset.
846 if (reloffset
>= descsz
)
868 if (!isprint(c
) || isquote(c
))
877 * Try next offsets, in case this match is
878 * in the middle of a string.
880 for (k
= i
+ 1 ; k
< NOFFSETS
; k
++) {
883 if (prpsoffsets(k
) >= prpsoffsets(i
))
885 for (no
= doff
+ prpsoffsets(k
);
886 no
< doff
+ prpsoffsets(i
); no
++)
888 && isprint(nbuf
[no
]);
893 cname
= CAST(unsigned char *,
894 &nbuf
[doff
+ prpsoffsets(i
)]);
895 for (cp
= cname
; cp
< nbuf
+ size
&& *cp
896 && isprint(*cp
); cp
++)
899 * Linux apparently appends a space at the end
900 * of the command line: remove it.
902 while (cp
> cname
&& isspace(cp
[-1]))
904 if (file_printf(ms
, ", from '%.*s'",
905 CAST(int, cp
- cname
), cname
) == -1)
907 *flags
|= FLAGS_DID_CORE
;
921 get_offset_from_virtaddr(struct magic_set
*ms
, int swap
, int clazz
, int fd
,
922 off_t off
, int num
, off_t fsize
, uint64_t virtaddr
)
928 * Loop through all the program headers and find the header with
929 * virtual address in which the "virtaddr" belongs to.
931 for ( ; num
; num
--) {
932 if (pread(fd
, xph_addr
, xph_sizeof
, off
) <
933 CAST(ssize_t
, xph_sizeof
)) {
939 if (fsize
!= SIZE_UNKNOWN
&& xph_offset
> fsize
) {
940 /* Perhaps warn here */
944 if (virtaddr
>= xph_vaddr
&& virtaddr
< xph_vaddr
+ xph_filesz
)
945 return xph_offset
+ (virtaddr
- xph_vaddr
);
951 get_string_on_virtaddr(struct magic_set
*ms
,
952 int swap
, int clazz
, int fd
, off_t ph_off
, int ph_num
,
953 off_t fsize
, uint64_t virtaddr
, char *buf
, ssize_t buflen
)
961 offset
= get_offset_from_virtaddr(ms
, swap
, clazz
, fd
, ph_off
, ph_num
,
964 (buflen
= pread(fd
, buf
, CAST(size_t, buflen
), offset
)) <= 0) {
969 buf
[buflen
- 1] = '\0';
971 /* We expect only printable characters, so return if buffer contains
972 * non-printable character before the '\0' or just '\0'. */
973 for (bptr
= buf
; *bptr
&& isprint(CAST(unsigned char, *bptr
)); bptr
++)
984 do_auxv_note(struct magic_set
*ms
, unsigned char *nbuf
, uint32_t type
,
985 int swap
, uint32_t namesz
__attribute__((__unused__
)),
986 uint32_t descsz
__attribute__((__unused__
)),
987 size_t noff
__attribute__((__unused__
)), size_t doff
,
988 int *flags
, size_t size
__attribute__((__unused__
)), int clazz
,
989 int fd
, off_t ph_off
, int ph_num
, off_t fsize
)
994 size_t elsize
= xauxv_sizeof
;
999 if ((*flags
& (FLAGS_IS_CORE
|FLAGS_DID_CORE_STYLE
)) !=
1000 (FLAGS_IS_CORE
|FLAGS_DID_CORE_STYLE
))
1003 switch (*flags
& FLAGS_CORE_STYLE
) {
1005 if (type
!= NT_AUXV
)
1009 case OS_STYLE_NETBSD
:
1010 if (type
!= NT_NETBSD_CORE_AUXV
)
1013 case OS_STYLE_FREEBSD
:
1014 if (type
!= NT_FREEBSD_PROCSTAT_AUXV
)
1022 *flags
|= FLAGS_DID_AUXV
;
1025 for (size_t off
= 0; off
+ elsize
<= descsz
; off
+= elsize
) {
1026 memcpy(xauxv_addr
, &nbuf
[doff
+ off
], xauxv_sizeof
);
1027 /* Limit processing to 50 vector entries to prevent DoS */
1029 file_error(ms
, 0, "Too many ELF Auxv elements");
1033 switch(xauxv_type
) {
1034 case AT_LINUX_EXECFN
:
1038 case AT_LINUX_PLATFORM
:
1052 tag
= "effective uid";
1056 tag
= "effective gid";
1070 buflen
= get_string_on_virtaddr(ms
, swap
, clazz
, fd
,
1071 ph_off
, ph_num
, fsize
, xauxv_val
, buf
, sizeof(buf
));
1076 if (file_printf(ms
, ", %s: '%s'", tag
, buf
) == -1)
1079 if (file_printf(ms
, ", %s: %d", tag
,
1080 CAST(int, xauxv_val
)) == -1)
1091 dodynamic(struct magic_set
*ms
, void *vbuf
, size_t offset
, size_t size
,
1092 int clazz
, int swap
)
1096 unsigned char *dbuf
= CAST(unsigned char *, vbuf
);
1098 if (xdh_sizeof
+ offset
> size
) {
1100 * We're out of note headers.
1102 return xdh_sizeof
+ offset
;
1105 memcpy(xdh_addr
, &dbuf
[offset
], xdh_sizeof
);
1106 offset
+= xdh_sizeof
;
1110 if (xdh_val
& DF_1_PIE
)
1123 donote(struct magic_set
*ms
, void *vbuf
, size_t offset
, size_t size
,
1124 int clazz
, int swap
, size_t align
, int *flags
, uint16_t *notecount
,
1125 int fd
, off_t ph_off
, int ph_num
, off_t fsize
)
1130 uint32_t namesz
, descsz
;
1131 unsigned char *nbuf
= CAST(unsigned char *, vbuf
);
1133 if (*notecount
== 0)
1137 if (xnh_sizeof
+ offset
> size
) {
1139 * We're out of note headers.
1141 return xnh_sizeof
+ offset
;
1144 memset(&nh32
, 0, sizeof(nh32
));
1145 memset(&nh64
, 0, sizeof(nh64
));
1147 memcpy(xnh_addr
, &nbuf
[offset
], xnh_sizeof
);
1148 offset
+= xnh_sizeof
;
1150 namesz
= xnh_namesz
;
1151 descsz
= xnh_descsz
;
1153 if ((namesz
== 0) && (descsz
== 0)) {
1155 * We're out of note headers.
1157 return (offset
>= size
) ? offset
: size
;
1160 if (namesz
& 0x80000000) {
1161 if (file_printf(ms
, ", bad note name size %#lx",
1162 CAST(unsigned long, namesz
)) == -1)
1167 if (descsz
& 0x80000000) {
1168 if (file_printf(ms
, ", bad note description size %#lx",
1169 CAST(unsigned long, descsz
)) == -1)
1175 doff
= ELF_ALIGN(offset
+ namesz
);
1177 if (offset
+ namesz
> size
) {
1179 * We're past the end of the buffer.
1184 offset
= ELF_ALIGN(doff
+ descsz
);
1185 if (doff
+ descsz
> size
) {
1187 * We're past the end of the buffer.
1189 return (offset
>= size
) ? offset
: size
;
1193 if ((*flags
& FLAGS_DID_OS_NOTE
) == 0) {
1194 if (do_os_note(ms
, nbuf
, xnh_type
, swap
,
1195 namesz
, descsz
, noff
, doff
, flags
))
1199 if ((*flags
& FLAGS_DID_BUILD_ID
) == 0) {
1200 if (do_bid_note(ms
, nbuf
, xnh_type
, swap
,
1201 namesz
, descsz
, noff
, doff
, flags
))
1205 if ((*flags
& FLAGS_DID_NETBSD_PAX
) == 0) {
1206 if (do_pax_note(ms
, nbuf
, xnh_type
, swap
,
1207 namesz
, descsz
, noff
, doff
, flags
))
1211 if ((*flags
& FLAGS_DID_CORE
) == 0) {
1212 if (do_core_note(ms
, nbuf
, xnh_type
, swap
,
1213 namesz
, descsz
, noff
, doff
, flags
, size
, clazz
))
1217 if ((*flags
& FLAGS_DID_AUXV
) == 0) {
1218 if (do_auxv_note(ms
, nbuf
, xnh_type
, swap
,
1219 namesz
, descsz
, noff
, doff
, flags
, size
, clazz
,
1220 fd
, ph_off
, ph_num
, fsize
))
1224 if (namesz
== 7 && strcmp(RCAST(char *, &nbuf
[noff
]), "NetBSD") == 0) {
1226 const char *str
, *tag
;
1230 case NT_NETBSD_VERSION
:
1232 case NT_NETBSD_MARCH
:
1233 flag
= FLAGS_DID_NETBSD_MARCH
;
1234 tag
= "compiled for";
1236 case NT_NETBSD_CMODEL
:
1237 flag
= FLAGS_DID_NETBSD_CMODEL
;
1238 tag
= "compiler model";
1240 case NT_NETBSD_EMULATION
:
1241 flag
= FLAGS_DID_NETBSD_EMULATION
;
1245 if (*flags
& FLAGS_DID_NETBSD_UNKNOWN
)
1247 *flags
|= FLAGS_DID_NETBSD_UNKNOWN
;
1248 if (file_printf(ms
, ", note=%u", xnh_type
) == -1)
1255 str
= RCAST(const char *, &nbuf
[doff
]);
1256 descw
= CAST(int, descsz
);
1258 file_printf(ms
, ", %s: %.*s", tag
, descw
, str
);
1265 /* SunOS 5.x hardware capability descriptions */
1266 typedef struct cap_desc
{
1268 const char *cd_name
;
1271 static const cap_desc_t cap_desc_sparc
[] = {
1272 { AV_SPARC_MUL32
, "MUL32" },
1273 { AV_SPARC_DIV32
, "DIV32" },
1274 { AV_SPARC_FSMULD
, "FSMULD" },
1275 { AV_SPARC_V8PLUS
, "V8PLUS" },
1276 { AV_SPARC_POPC
, "POPC" },
1277 { AV_SPARC_VIS
, "VIS" },
1278 { AV_SPARC_VIS2
, "VIS2" },
1279 { AV_SPARC_ASI_BLK_INIT
, "ASI_BLK_INIT" },
1280 { AV_SPARC_FMAF
, "FMAF" },
1281 { AV_SPARC_FJFMAU
, "FJFMAU" },
1282 { AV_SPARC_IMA
, "IMA" },
1286 static const cap_desc_t cap_desc_386
[] = {
1287 { AV_386_FPU
, "FPU" },
1288 { AV_386_TSC
, "TSC" },
1289 { AV_386_CX8
, "CX8" },
1290 { AV_386_SEP
, "SEP" },
1291 { AV_386_AMD_SYSC
, "AMD_SYSC" },
1292 { AV_386_CMOV
, "CMOV" },
1293 { AV_386_MMX
, "MMX" },
1294 { AV_386_AMD_MMX
, "AMD_MMX" },
1295 { AV_386_AMD_3DNow
, "AMD_3DNow" },
1296 { AV_386_AMD_3DNowx
, "AMD_3DNowx" },
1297 { AV_386_FXSR
, "FXSR" },
1298 { AV_386_SSE
, "SSE" },
1299 { AV_386_SSE2
, "SSE2" },
1300 { AV_386_PAUSE
, "PAUSE" },
1301 { AV_386_SSE3
, "SSE3" },
1302 { AV_386_MON
, "MON" },
1303 { AV_386_CX16
, "CX16" },
1304 { AV_386_AHF
, "AHF" },
1305 { AV_386_TSCP
, "TSCP" },
1306 { AV_386_AMD_SSE4A
, "AMD_SSE4A" },
1307 { AV_386_POPCNT
, "POPCNT" },
1308 { AV_386_AMD_LZCNT
, "AMD_LZCNT" },
1309 { AV_386_SSSE3
, "SSSE3" },
1310 { AV_386_SSE4_1
, "SSE4.1" },
1311 { AV_386_SSE4_2
, "SSE4.2" },
1316 doshn(struct magic_set
*ms
, int clazz
, int swap
, int fd
, off_t off
, int num
,
1317 size_t size
, off_t fsize
, int mach
, int strtab
, int *flags
,
1318 uint16_t *notecount
)
1322 int stripped
= 1, has_debug_info
= 0;
1325 off_t noff
, coff
, name_off
;
1326 uint64_t cap_hw1
= 0; /* SunOS 5.x hardware capabilities */
1327 uint64_t cap_sf1
= 0; /* SunOS 5.x software capabilities */
1332 if (file_printf(ms
, ", no section header") == -1)
1336 if (size
!= xsh_sizeof
) {
1337 if (file_printf(ms
, ", corrupted section header size") == -1)
1342 /* Read offset of name section to be able to read section names later */
1343 if (pread(fd
, xsh_addr
, xsh_sizeof
, CAST(off_t
, (off
+ size
* strtab
)))
1344 < CAST(ssize_t
, xsh_sizeof
)) {
1345 if (file_printf(ms
, ", missing section headers") == -1)
1349 name_off
= xsh_offset
;
1351 if (fsize
!= SIZE_UNKNOWN
&& fsize
< name_off
) {
1352 if (file_printf(ms
, ", too large section header offset %td",
1358 for ( ; num
; num
--) {
1359 /* Read the name of this section. */
1360 if ((namesize
= pread(fd
, name
, sizeof(name
) - 1,
1361 name_off
+ xsh_name
)) == -1) {
1365 name
[namesize
] = '\0';
1366 if (strcmp(name
, ".debug_info") == 0) {
1371 if (pread(fd
, xsh_addr
, xsh_sizeof
, off
) <
1372 CAST(ssize_t
, xsh_sizeof
)) {
1378 /* Things we can determine before we seek */
1387 if (fsize
!= SIZE_UNKNOWN
&& xsh_offset
> fsize
) {
1388 /* Perhaps warn here */
1395 /* Things we can determine when we seek */
1398 if (CAST(uintmax_t, (xsh_size
+ xsh_offset
)) >
1399 CAST(uintmax_t, fsize
)) {
1401 ", note offset/size %#" INTMAX_T_FORMAT
1402 "x+%#" INTMAX_T_FORMAT
"x exceeds"
1403 " file size %#" INTMAX_T_FORMAT
"x",
1404 CAST(uintmax_t, xsh_offset
),
1405 CAST(uintmax_t, xsh_size
),
1406 CAST(uintmax_t, fsize
)) == -1)
1410 if ((nbuf
= malloc(xsh_size
)) == NULL
) {
1411 file_error(ms
, errno
, "Cannot allocate memory"
1415 if (pread(fd
, nbuf
, xsh_size
, xsh_offset
) <
1416 CAST(ssize_t
, xsh_size
)) {
1424 if (noff
>= CAST(off_t
, xsh_size
))
1426 noff
= donote(ms
, nbuf
, CAST(size_t, noff
),
1427 xsh_size
, clazz
, swap
, 4, flags
, notecount
,
1448 if (lseek(fd
, xsh_offset
, SEEK_SET
)
1449 == CAST(off_t
, -1)) {
1457 char cbuf
[/*CONSTCOND*/
1458 MAX(sizeof(cap32
), sizeof(cap64
))];
1459 if ((coff
+= xcap_sizeof
) >
1460 CAST(off_t
, xsh_size
))
1462 if (read(fd
, cbuf
, CAST(size_t, xcap_sizeof
)) !=
1463 CAST(ssize_t
, xcap_sizeof
)) {
1467 if (cbuf
[0] == 'A') {
1471 memcpy(&len
, p
, sizeof(len
));
1473 len
= getu32(swap
, len
);
1474 if (memcmp("gnu", p
, 3) != 0) {
1476 ", unknown capability %.3s", p
)
1483 memcpy(&len
, p
, sizeof(len
));
1485 len
= getu32(swap
, len
);
1487 if (file_printf(ms
, ", unknown gnu"
1488 " capability tag %d", tag
)
1497 memcpy(xcap_addr
, cbuf
, xcap_sizeof
);
1502 cap_hw1
|= xcap_val
;
1505 cap_sf1
|= xcap_val
;
1509 ", with unknown capability "
1510 "%#" INT64_T_FORMAT
"x = %#"
1512 CAST(unsigned long long, xcap_tag
),
1513 CAST(unsigned long long, xcap_val
))
1528 if (has_debug_info
) {
1529 if (file_printf(ms
, ", with debug_info") == -1)
1532 if (file_printf(ms
, ", %sstripped", stripped
? "" : "not ") == -1)
1535 const cap_desc_t
*cdp
;
1538 case EM_SPARC32PLUS
:
1540 cdp
= cap_desc_sparc
;
1551 if (file_printf(ms
, ", uses") == -1)
1554 while (cdp
->cd_name
) {
1555 if (cap_hw1
& cdp
->cd_mask
) {
1557 " %s", cdp
->cd_name
) == -1)
1559 cap_hw1
&= ~cdp
->cd_mask
;
1565 " unknown hardware capability %#"
1567 CAST(unsigned long long, cap_hw1
)) == -1)
1571 " hardware capability %#" INT64_T_FORMAT
"x",
1572 CAST(unsigned long long, cap_hw1
)) == -1)
1577 if (cap_sf1
& SF1_SUNW_FPUSED
) {
1579 (cap_sf1
& SF1_SUNW_FPKNWN
)
1580 ? ", uses frame pointer"
1581 : ", not known to use frame pointer") == -1)
1584 cap_sf1
&= ~SF1_SUNW_MASK
;
1587 ", with unknown software capability %#"
1589 CAST(unsigned long long, cap_sf1
)) == -1)
1596 * Look through the program headers of an executable image, searching
1597 * for a PT_INTERP section; if one is found, it's dynamically linked,
1598 * otherwise it's statically linked.
1601 dophn_exec(struct magic_set
*ms
, int clazz
, int swap
, int fd
, off_t off
,
1602 int num
, size_t size
, off_t fsize
, int sh_num
, int *flags
,
1603 uint16_t *notecount
)
1607 const char *linking_style
= "statically";
1608 unsigned char nbuf
[BUFSIZ
];
1610 char interp
[BUFSIZ
];
1612 size_t offset
, align
, len
;
1615 if (file_printf(ms
, ", no program header") == -1)
1619 if (size
!= xph_sizeof
) {
1620 if (file_printf(ms
, ", corrupted program header size") == -1)
1626 for ( ; num
; num
--) {
1628 if (pread(fd
, xph_addr
, xph_sizeof
, off
) <
1629 CAST(ssize_t
, xph_sizeof
)) {
1638 /* Things we can determine before we seek */
1644 if (sh_num
) /* Did this through section headers */
1646 if (((align
= xph_align
) & 0x80000000UL
) != 0 ||
1649 ", invalid note alignment %#lx",
1650 CAST(unsigned long, align
)) == -1)
1656 linking_style
= "dynamically";
1661 if (fsize
!= SIZE_UNKNOWN
&& xph_offset
> fsize
) {
1662 /* Maybe warn here? */
1669 len
= xph_filesz
< sizeof(nbuf
) ? xph_filesz
1671 bufsize
= pread(fd
, nbuf
, len
, xph_offset
);
1672 if (bufsize
== -1) {
1679 /* Things we can determine when we seek */
1683 // Let DF_1 determine if we are PIE or not.
1686 if (offset
>= CAST(size_t, bufsize
))
1688 offset
= dodynamic(ms
, nbuf
, offset
,
1689 CAST(size_t, bufsize
), clazz
, swap
);
1696 if (bufsize
&& nbuf
[0]) {
1697 nbuf
[bufsize
- 1] = '\0';
1698 memcpy(interp
, nbuf
, CAST(size_t, bufsize
));
1700 strlcpy(interp
, "*empty*", sizeof(interp
));
1704 * This is a PT_NOTE section; loop through all the notes
1709 if (offset
>= CAST(size_t, bufsize
))
1711 offset
= donote(ms
, nbuf
, offset
,
1712 CAST(size_t, bufsize
), clazz
, swap
, align
,
1713 flags
, notecount
, fd
, 0, 0, 0);
1722 if (file_printf(ms
, ", %s linked", linking_style
)
1726 if (file_printf(ms
, ", interpreter %s",
1727 file_printable(ibuf
, sizeof(ibuf
), interp
, sizeof(interp
)))
1735 file_tryelf(struct magic_set
*ms
, const struct buffer
*b
)
1738 const unsigned char *buf
= CAST(const unsigned char *, b
->fbuf
);
1739 size_t nbytes
= b
->flen
;
1742 char c
[sizeof(int32_t)];
1747 const struct stat
*stp
;
1750 Elf32_Ehdr elf32hdr
;
1751 Elf64_Ehdr elf64hdr
;
1752 uint16_t type
, phnum
, shnum
, notecount
;
1754 if (ms
->flags
& (MAGIC_MIME
|MAGIC_APPLE
|MAGIC_EXTENSION
))
1757 * ELF executables have multiple section headers in arbitrary
1758 * file locations and thus file(1) cannot determine it from easily.
1759 * Instead we traverse thru all section headers until a symbol table
1760 * one is found or else the binary is stripped.
1761 * Return immediately if it's not ELF (so we avoid pipe2file unless
1764 if (buf
[EI_MAG0
] != ELFMAG0
1765 || (buf
[EI_MAG1
] != ELFMAG1
&& buf
[EI_MAG1
] != OLFMAG1
)
1766 || buf
[EI_MAG2
] != ELFMAG2
|| buf
[EI_MAG3
] != ELFMAG3
)
1770 * If we cannot seek, it must be a pipe, socket or fifo.
1772 if((lseek(fd
, CAST(off_t
, 0), SEEK_SET
) == CAST(off_t
, -1))
1773 && (errno
== ESPIPE
))
1774 fd
= file_pipe2file(ms
, fd
, buf
, nbytes
);
1783 * b->st.st_size != 0 if previous fstat() succeeded,
1784 * which is likely, we can avoid extra stat() call.
1786 if (b
->st
.st_size
== 0) {
1788 if (fstat(fd
, &st
) == -1) {
1793 if (S_ISREG(stp
->st_mode
) || stp
->st_size
!= 0)
1794 fsize
= stp
->st_size
;
1796 fsize
= SIZE_UNKNOWN
;
1798 clazz
= buf
[EI_CLASS
];
1803 #define elf_getu(a, b) elf_getu32(a, b)
1805 #define elfhdr elf32hdr
1806 #include "elfclass.h"
1809 #define elf_getu(a, b) elf_getu64(a, b)
1811 #define elfhdr elf64hdr
1812 #include "elfclass.h"
1814 if (file_printf(ms
, ", unknown class %d", clazz
) == -1)