Adding upstream version 1:5.44.upstream/1%5.44upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1902 insertions, 0 deletions

diff --git a/src/readelf.c b/src/readelf.c
new file mode 100644
index 0000000..97d1451
--- /dev/null
+++ b/src/readelf.c
@@ -0,0 +1,1902 @@
+/*
+ * Copyright (c) Christos Zoulas 2003.
+ * All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice immediately at the beginning of the file, without modification,
+ *    this list of conditions, and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include "file.h"
+
+#ifndef lint
+FILE_RCSID("@(#)$File: readelf.c,v 1.187 2022/12/26 17:31:14 christos Exp $")
+#endif
+
+#ifdef BUILTIN_ELF
+#include <string.h>
+#include <ctype.h>
+#include <stdlib.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include "readelf.h"
+#include "magic.h"
+
+#ifdef	ELFCORE
+file_private int dophn_core(struct magic_set *, int, int, int, off_t, int, size_t,
+    off_t, int *, uint16_t *);
+#endif
+file_private int dophn_exec(struct magic_set *, int, int, int, off_t, int, size_t,
+    off_t, int, int *, uint16_t *);
+file_private int doshn(struct magic_set *, int, int, int, off_t, int, size_t,
+    off_t, int, int, int *, uint16_t *);
+file_private size_t donote(struct magic_set *, void *, size_t, size_t, int,
+    int, size_t, int *, uint16_t *, int, off_t, int, off_t);
+
+#define	ELF_ALIGN(a)	((((a) + align - 1) / align) * align)
+
+#define isquote(c) (strchr("'\"`", (c)) != NULL)
+
+file_private uint16_t getu16(int, uint16_t);
+file_private uint32_t getu32(int, uint32_t);
+file_private uint64_t getu64(int, uint64_t);
+
+#define MAX_PHNUM	128
+#define	MAX_SHNUM	32768
+#define MAX_SHSIZE	(64 * 1024 * 1024)
+#define SIZE_UNKNOWN	CAST(off_t, -1)
+
+file_private int
+toomany(struct magic_set *ms, const char *name, uint16_t num)
+{
+	if (ms->flags & MAGIC_MIME)
+		return 1;
+	if (file_printf(ms, ", too many %s (%u)", name, num) == -1)
+		return -1;
+	return 1;
+}
+
+file_private uint16_t
+getu16(int swap, uint16_t value)
+{
+	union {
+		uint16_t ui;
+		char c[2];
+	} retval, tmpval;
+
+	if (swap) {
+		tmpval.ui = value;
+
+		retval.c[0] = tmpval.c[1];
+		retval.c[1] = tmpval.c[0];
+
+		return retval.ui;
+	} else
+		return value;
+}
+
+file_private uint32_t
+getu32(int swap, uint32_t value)
+{
+	union {
+		uint32_t ui;
+		char c[4];
+	} retval, tmpval;
+
+	if (swap) {
+		tmpval.ui = value;
+
+		retval.c[0] = tmpval.c[3];
+		retval.c[1] = tmpval.c[2];
+		retval.c[2] = tmpval.c[1];
+		retval.c[3] = tmpval.c[0];
+
+		return retval.ui;
+	} else
+		return value;
+}
+
+file_private uint64_t
+getu64(int swap, uint64_t value)
+{
+	union {
+		uint64_t ui;
+		char c[8];
+	} retval, tmpval;
+
+	if (swap) {
+		tmpval.ui = value;
+
+		retval.c[0] = tmpval.c[7];
+		retval.c[1] = tmpval.c[6];
+		retval.c[2] = tmpval.c[5];
+		retval.c[3] = tmpval.c[4];
+		retval.c[4] = tmpval.c[3];
+		retval.c[5] = tmpval.c[2];
+		retval.c[6] = tmpval.c[1];
+		retval.c[7] = tmpval.c[0];
+
+		return retval.ui;
+	} else
+		return value;
+}
+
+#define elf_getu16(swap, value) getu16(swap, value)
+#define elf_getu32(swap, value) getu32(swap, value)
+#define elf_getu64(swap, value) getu64(swap, value)
+
+#define xsh_addr	(clazz == ELFCLASS32			\
+			 ? CAST(void *, &sh32)			\
+			 : CAST(void *, &sh64))
+#define xsh_sizeof	(clazz == ELFCLASS32			\
+			 ? sizeof(sh32)				\
+			 : sizeof(sh64))
+#define xsh_size	CAST(size_t, (clazz == ELFCLASS32	\
+			 ? elf_getu32(swap, sh32.sh_size)	\
+			 : elf_getu64(swap, sh64.sh_size)))
+#define xsh_offset	CAST(off_t, (clazz == ELFCLASS32	\
+			 ? elf_getu32(swap, sh32.sh_offset)	\
+			 : elf_getu64(swap, sh64.sh_offset)))
+#define xsh_type	(clazz == ELFCLASS32			\
+			 ? elf_getu32(swap, sh32.sh_type)	\
+			 : elf_getu32(swap, sh64.sh_type))
+#define xsh_name    	(clazz == ELFCLASS32			\
+			 ? elf_getu32(swap, sh32.sh_name)	\
+			 : elf_getu32(swap, sh64.sh_name))
+
+#define xph_addr	(clazz == ELFCLASS32			\
+			 ? CAST(void *, &ph32)			\
+			 : CAST(void *, &ph64))
+#define xph_sizeof	(clazz == ELFCLASS32			\
+			 ? sizeof(ph32)				\
+			 : sizeof(ph64))
+#define xph_type	(clazz == ELFCLASS32			\
+			 ? elf_getu32(swap, ph32.p_type)	\
+			 : elf_getu32(swap, ph64.p_type))
+#define xph_offset	CAST(off_t, (clazz == ELFCLASS32	\
+			 ? elf_getu32(swap, ph32.p_offset)	\
+			 : elf_getu64(swap, ph64.p_offset)))
+#define xph_align	CAST(size_t, (clazz == ELFCLASS32	\
+			 ? CAST(off_t, (ph32.p_align ? 		\
+			    elf_getu32(swap, ph32.p_align) : 4))\
+			 : CAST(off_t, (ph64.p_align ?		\
+			    elf_getu64(swap, ph64.p_align) : 4))))
+#define xph_vaddr	CAST(size_t, (clazz == ELFCLASS32	\
+			 ? CAST(off_t, (ph32.p_vaddr ? 		\
+			    elf_getu32(swap, ph32.p_vaddr) : 4))\
+			 : CAST(off_t, (ph64.p_vaddr ?		\
+			    elf_getu64(swap, ph64.p_vaddr) : 4))))
+#define xph_filesz	CAST(size_t, (clazz == ELFCLASS32	\
+			 ? elf_getu32(swap, ph32.p_filesz)	\
+			 : elf_getu64(swap, ph64.p_filesz)))
+#define xph_memsz	CAST(size_t, ((clazz == ELFCLASS32	\
+			 ? elf_getu32(swap, ph32.p_memsz)	\
+			 : elf_getu64(swap, ph64.p_memsz))))
+#define xnh_addr	(clazz == ELFCLASS32			\
+			 ? CAST(void *, &nh32)			\
+			 : CAST(void *, &nh64))
+#define xnh_sizeof	(clazz == ELFCLASS32			\
+			 ? sizeof(nh32)				\
+			 : sizeof(nh64))
+#define xnh_type	(clazz == ELFCLASS32			\
+			 ? elf_getu32(swap, nh32.n_type)	\
+			 : elf_getu32(swap, nh64.n_type))
+#define xnh_namesz	(clazz == ELFCLASS32			\
+			 ? elf_getu32(swap, nh32.n_namesz)	\
+			 : elf_getu32(swap, nh64.n_namesz))
+#define xnh_descsz	(clazz == ELFCLASS32			\
+			 ? elf_getu32(swap, nh32.n_descsz)	\
+			 : elf_getu32(swap, nh64.n_descsz))
+
+#define xdh_addr	(clazz == ELFCLASS32			\
+			 ? CAST(void *, &dh32)			\
+			 : CAST(void *, &dh64))
+#define xdh_sizeof	(clazz == ELFCLASS32			\
+			 ? sizeof(dh32)				\
+			 : sizeof(dh64))
+#define xdh_tag		(clazz == ELFCLASS32			\
+			 ? elf_getu32(swap, dh32.d_tag)		\
+			 : elf_getu64(swap, dh64.d_tag))
+#define xdh_val		(clazz == ELFCLASS32			\
+			 ? elf_getu32(swap, dh32.d_un.d_val)	\
+			 : elf_getu64(swap, dh64.d_un.d_val))
+
+#define xcap_addr	(clazz == ELFCLASS32			\
+			 ? CAST(void *, &cap32)			\
+			 : CAST(void *, &cap64))
+#define xcap_sizeof	(clazz == ELFCLASS32			\
+			 ? sizeof(cap32)			\
+			 : sizeof(cap64))
+#define xcap_tag	(clazz == ELFCLASS32			\
+			 ? elf_getu32(swap, cap32.c_tag)	\
+			 : elf_getu64(swap, cap64.c_tag))
+#define xcap_val	(clazz == ELFCLASS32			\
+			 ? elf_getu32(swap, cap32.c_un.c_val)	\
+			 : elf_getu64(swap, cap64.c_un.c_val))
+
+#define xauxv_addr	(clazz == ELFCLASS32			\
+			 ? CAST(void *, &auxv32)		\
+			 : CAST(void *, &auxv64))
+#define xauxv_sizeof	(clazz == ELFCLASS32			\
+			 ? sizeof(auxv32)			\
+			 : sizeof(auxv64))
+#define xauxv_type	(clazz == ELFCLASS32			\
+			 ? elf_getu32(swap, auxv32.a_type)	\
+			 : elf_getu64(swap, auxv64.a_type))
+#define xauxv_val	(clazz == ELFCLASS32			\
+			 ? elf_getu32(swap, auxv32.a_v)		\
+			 : elf_getu64(swap, auxv64.a_v))
+
+#define prpsoffsets(i)	(clazz == ELFCLASS32			\
+			 ? prpsoffsets32[i]			\
+			 : prpsoffsets64[i])
+
+#ifdef ELFCORE
+/*
+ * Try larger offsets first to avoid false matches
+ * from earlier data that happen to look like strings.
+ */
+static const size_t	prpsoffsets32[] = {
+#ifdef USE_NT_PSINFO
+	104,		/* SunOS 5.x (command line) */
+	88,		/* SunOS 5.x (short name) */
+#endif /* USE_NT_PSINFO */
+
+	100,		/* SunOS 5.x (command line) */
+	84,		/* SunOS 5.x (short name) */
+
+	44,		/* Linux (command line) */
+	28,		/* Linux (short name) */
+
+	48,		/* Linux PowerPC (command line) */
+	32,		/* Linux PowerPC (short name) */
+
+	8,		/* FreeBSD */
+};
+
+static const size_t	prpsoffsets64[] = {
+#ifdef USE_NT_PSINFO
+	152,		/* SunOS 5.x (command line) */
+	136,		/* SunOS 5.x (short name) */
+#endif /* USE_NT_PSINFO */
+
+	136,		/* SunOS 5.x, 64-bit (command line) */
+	120,		/* SunOS 5.x, 64-bit (short name) */
+
+	56,		/* Linux (command line) */
+	40,             /* Linux (tested on core from 2.4.x, short name) */
+
+	16,		/* FreeBSD, 64-bit */
+};
+
+#define	NOFFSETS32	__arraycount(prpsoffsets32)
+#define NOFFSETS64	__arraycount(prpsoffsets64)
+
+#define NOFFSETS	(clazz == ELFCLASS32 ? NOFFSETS32 : NOFFSETS64)
+
+/*
+ * Look through the program headers of an executable image, searching
+ * for a PT_NOTE section of type NT_PRPSINFO, with a name "CORE" or
+ * "FreeBSD"; if one is found, try looking in various places in its
+ * contents for a 16-character string containing only printable
+ * characters - if found, that string should be the name of the program
+ * that dropped core.  Note: right after that 16-character string is,
+ * at least in SunOS 5.x (and possibly other SVR4-flavored systems) and
+ * Linux, a longer string (80 characters, in 5.x, probably other
+ * SVR4-flavored systems, and Linux) containing the start of the
+ * command line for that program.
+ *
+ * SunOS 5.x core files contain two PT_NOTE sections, with the types
+ * NT_PRPSINFO (old) and NT_PSINFO (new).  These structs contain the
+ * same info about the command name and command line, so it probably
+ * isn't worthwhile to look for NT_PSINFO, but the offsets are provided
+ * above (see USE_NT_PSINFO), in case we ever decide to do so.  The
+ * NT_PRPSINFO and NT_PSINFO sections are always in order and adjacent;
+ * the SunOS 5.x file command relies on this (and prefers the latter).
+ *
+ * The signal number probably appears in a section of type NT_PRSTATUS,
+ * but that's also rather OS-dependent, in ways that are harder to
+ * dissect with heuristics, so I'm not bothering with the signal number.
+ * (I suppose the signal number could be of interest in situations where
+ * you don't have the binary of the program that dropped core; if you
+ * *do* have that binary, the debugger will probably tell you what
+ * signal it was.)
+ */
+
+#define	OS_STYLE_SVR4		0
+#define	OS_STYLE_FREEBSD	1
+#define	OS_STYLE_NETBSD		2
+
+file_private const char os_style_names[][8] = {
+	"SVR4",
+	"FreeBSD",
+	"NetBSD",
+};
+
+#define FLAGS_CORE_STYLE		0x0003
+
+#define FLAGS_DID_CORE			0x0004
+#define FLAGS_DID_OS_NOTE		0x0008
+#define FLAGS_DID_BUILD_ID		0x0010
+#define FLAGS_DID_CORE_STYLE		0x0020
+#define FLAGS_DID_NETBSD_PAX		0x0040
+#define FLAGS_DID_NETBSD_MARCH		0x0080
+#define FLAGS_DID_NETBSD_CMODEL		0x0100
+#define FLAGS_DID_NETBSD_EMULATION	0x0200
+#define FLAGS_DID_NETBSD_UNKNOWN	0x0400
+#define FLAGS_IS_CORE			0x0800
+#define FLAGS_DID_AUXV			0x1000
+
+file_private int
+dophn_core(struct magic_set *ms, int clazz, int swap, int fd, off_t off,
+    int num, size_t size, off_t fsize, int *flags, uint16_t *notecount)
+{
+	Elf32_Phdr ph32;
+	Elf64_Phdr ph64;
+	size_t offset, len;
+	unsigned char nbuf[BUFSIZ];
+	ssize_t bufsize;
+	off_t ph_off = off, offs;
+	int ph_num = num;
+
+	if (ms->flags & MAGIC_MIME)
+		return 0;
+
+	if (num == 0) {
+		if (file_printf(ms, ", no program header") == -1)
+			return -1;
+		return 0;
+	}
+	if (size != xph_sizeof) {
+		if (file_printf(ms, ", corrupted program header size") == -1)
+			return -1;
+		return 0;
+	}
+
+	/*
+	 * Loop through all the program headers.
+	 */
+	for ( ; num; num--) {
+		if (pread(fd, xph_addr, xph_sizeof, off) <
+		    CAST(ssize_t, xph_sizeof)) {
+			if (file_printf(ms, 
+			    ", can't read elf program headers at %jd",
+			    (intmax_t)off) == -1)
+				return -1;
+			return 0;
+		}
+		off += size;
+
+		if (fsize != SIZE_UNKNOWN && xph_offset > fsize) {
+			/* Perhaps warn here */
+			continue;
+		}
+
+		if (xph_type != PT_NOTE)
+			continue;
+
+		/*
+		 * This is a PT_NOTE section; loop through all the notes
+		 * in the section.
+		 */
+		len = xph_filesz < sizeof(nbuf) ? xph_filesz : sizeof(nbuf);
+		offs = xph_offset;
+		if ((bufsize = pread(fd, nbuf, len, offs)) == -1) {
+			if (file_printf(ms, " can't read note section at %jd",
+			    (intmax_t)offs) == -1)
+				return -1;
+			return 0;
+		}
+		offset = 0;
+		for (;;) {
+			if (offset >= CAST(size_t, bufsize))
+				break;
+			offset = donote(ms, nbuf, offset, CAST(size_t, bufsize),
+			    clazz, swap, 4, flags, notecount, fd, ph_off,
+			    ph_num, fsize);
+			if (offset == 0)
+				break;
+
+		}
+	}
+	return 0;
+}
+#endif
+
+static int
+do_note_netbsd_version(struct magic_set *ms, int swap, void *v)
+{
+	uint32_t desc;
+	memcpy(&desc, v, sizeof(desc));
+	desc = elf_getu32(swap, desc);
+
+	if (file_printf(ms, ", for NetBSD") == -1)
+		return -1;
+	/*
+	 * The version number used to be stuck as 199905, and was thus
+	 * basically content-free.  Newer versions of NetBSD have fixed
+	 * this and now use the encoding of __NetBSD_Version__:
+	 *
+	 *	MMmmrrpp00
+	 *
+	 * M = major version
+	 * m = minor version
+	 * r = release ["",A-Z,Z[A-Z] but numeric]
+	 * p = patchlevel
+	 */
+	if (desc > 100000000U) {
+		uint32_t ver_patch = (desc / 100) % 100;
+		uint32_t ver_rel = (desc / 10000) % 100;
+		uint32_t ver_min = (desc / 1000000) % 100;
+		uint32_t ver_maj = desc / 100000000;
+
+		if (file_printf(ms, " %u.%u", ver_maj, ver_min) == -1)
+			return -1;
+		if (ver_maj >= 9) {
+			ver_patch += 100 * ver_rel;
+			ver_rel = 0;
+		}
+		if (ver_rel == 0 && ver_patch != 0) {
+			if (file_printf(ms, ".%u", ver_patch) == -1)
+				return -1;
+		} else if (ver_rel != 0) {
+			while (ver_rel > 26) {
+				if (file_printf(ms, "Z") == -1)
+					return -1;
+				ver_rel -= 26;
+			}
+			if (file_printf(ms, "%c", 'A' + ver_rel - 1) == -1)
+				return -1;
+		}
+	}
+	return 0;
+}
+
+static int
+do_note_freebsd_version(struct magic_set *ms, int swap, void *v)
+{
+	uint32_t desc;
+
+	memcpy(&desc, v, sizeof(desc));
+	desc = elf_getu32(swap, desc);
+	if (file_printf(ms, ", for FreeBSD") == -1)
+		return -1;
+
+	/*
+	 * Contents is __FreeBSD_version, whose relation to OS
+	 * versions is defined by a huge table in the Porter's
+	 * Handbook.  This is the general scheme:
+	 *
+	 * Releases:
+	 * 	Mmp000 (before 4.10)
+	 * 	Mmi0p0 (before 5.0)
+	 * 	Mmm0p0
+	 *
+	 * Development branches:
+	 * 	Mmpxxx (before 4.6)
+	 * 	Mmp1xx (before 4.10)
+	 * 	Mmi1xx (before 5.0)
+	 * 	M000xx (pre-M.0)
+	 * 	Mmm1xx
+	 *
+	 * M = major version
+	 * m = minor version
+	 * i = minor version increment (491000 -> 4.10)
+	 * p = patchlevel
+	 * x = revision
+	 *
+	 * The first release of FreeBSD to use ELF by default
+	 * was version 3.0.
+	 */
+	if (desc == 460002) {
+		if (file_printf(ms, " 4.6.2") == -1)
+			return -1;
+	} else if (desc < 460100) {
+		if (file_printf(ms, " %d.%d", desc / 100000,
+		    desc / 10000 % 10) == -1)
+			return -1;
+		if (desc / 1000 % 10 > 0)
+			if (file_printf(ms, ".%d", desc / 1000 % 10) == -1)
+				return -1;
+		if ((desc % 1000 > 0) || (desc % 100000 == 0))
+			if (file_printf(ms, " (%d)", desc) == -1)
+				return -1;
+	} else if (desc < 500000) {
+		if (file_printf(ms, " %d.%d", desc / 100000,
+		    desc / 10000 % 10 + desc / 1000 % 10) == -1)
+			return -1;
+		if (desc / 100 % 10 > 0) {
+			if (file_printf(ms, " (%d)", desc) == -1)
+				return -1;
+		} else if (desc / 10 % 10 > 0) {
+			if (file_printf(ms, ".%d", desc / 10 % 10) == -1)
+				return -1;
+		}
+	} else {
+		if (file_printf(ms, " %d.%d", desc / 100000,
+		    desc / 1000 % 100) == -1)
+			return -1;
+		if ((desc / 100 % 10 > 0) ||
+		    (desc % 100000 / 100 == 0)) {
+			if (file_printf(ms, " (%d)", desc) == -1)
+				return -1;
+		} else if (desc / 10 % 10 > 0) {
+			if (file_printf(ms, ".%d", desc / 10 % 10) == -1)
+				return -1;
+		}
+	}
+	return 0;
+}
+
+file_private int
+/*ARGSUSED*/
+do_bid_note(struct magic_set *ms, unsigned char *nbuf, uint32_t type,
+    int swap __attribute__((__unused__)), uint32_t namesz, uint32_t descsz,
+    size_t noff, size_t doff, int *flags)
+{
+	if (namesz == 4 && strcmp(RCAST(char *, &nbuf[noff]), "GNU") == 0 &&
+	    type == NT_GNU_BUILD_ID && (descsz >= 4 && descsz <= 20)) {
+		uint8_t desc[20];
+		const char *btype;
+		uint32_t i;
+		*flags |= FLAGS_DID_BUILD_ID;
+		switch (descsz) {
+		case 8:
+		    btype = "xxHash";
+		    break;
+		case 16:
+		    btype = "md5/uuid";
+		    break;
+		case 20:
+		    btype = "sha1";
+		    break;
+		default:
+		    btype = "unknown";
+		    break;
+		}
+		if (file_printf(ms, ", BuildID[%s]=", btype) == -1)
+			return -1;
+		memcpy(desc, &nbuf[doff], descsz);
+		for (i = 0; i < descsz; i++)
+		    if (file_printf(ms, "%02x", desc[i]) == -1)
+			return -1;
+		return 1;
+	}
+	if (namesz == 4 && strcmp(RCAST(char *, &nbuf[noff]), "Go") == 0 &&
+	    type == NT_GO_BUILD_ID && descsz < 128) {
+		char buf[256];
+		if (file_printf(ms, ", Go BuildID=%s",
+		    file_copystr(buf, sizeof(buf), descsz,
+		    RCAST(const char *, &nbuf[doff]))) == -1)
+			return -1;
+		return 1;
+	}
+	return 0;
+}
+
+file_private int
+do_os_note(struct magic_set *ms, unsigned char *nbuf, uint32_t type,
+    int swap, uint32_t namesz, uint32_t descsz,
+    size_t noff, size_t doff, int *flags)
+{
+	const char *name = RCAST(const char *, &nbuf[noff]);
+
+	if (namesz == 5 && strcmp(name, "SuSE") == 0 &&
+		type == NT_GNU_VERSION && descsz == 2) {
+		*flags |= FLAGS_DID_OS_NOTE;
+		if (file_printf(ms, ", for SuSE %d.%d", nbuf[doff],
+		    nbuf[doff + 1]) == -1)
+		    return -1;
+	    return 1;
+	}
+
+	if (namesz == 4 && strcmp(name, "GNU") == 0 &&
+	    type == NT_GNU_VERSION && descsz == 16) {
+		uint32_t desc[4];
+		memcpy(desc, &nbuf[doff], sizeof(desc));
+
+		*flags |= FLAGS_DID_OS_NOTE;
+		if (file_printf(ms, ", for GNU/") == -1)
+			return -1;
+		switch (elf_getu32(swap, desc[0])) {
+		case GNU_OS_LINUX:
+			if (file_printf(ms, "Linux") == -1)
+				return -1;
+			break;
+		case GNU_OS_HURD:
+			if (file_printf(ms, "Hurd") == -1)
+				return -1;
+			break;
+		case GNU_OS_SOLARIS:
+			if (file_printf(ms, "Solaris") == -1)
+				return -1;
+			break;
+		case GNU_OS_KFREEBSD:
+			if (file_printf(ms, "kFreeBSD") == -1)
+				return -1;
+			break;
+		case GNU_OS_KNETBSD:
+			if (file_printf(ms, "kNetBSD") == -1)
+				return -1;
+			break;
+		default:
+			if (file_printf(ms, "<unknown>") == -1)
+				return -1;
+		}
+		if (file_printf(ms, " %d.%d.%d", elf_getu32(swap, desc[1]),
+		    elf_getu32(swap, desc[2]), elf_getu32(swap, desc[3])) == -1)
+			return -1;
+		return 1;
+	}
+
+	if (namesz == 7 && strcmp(name, "NetBSD") == 0) {
+	    	if (type == NT_NETBSD_VERSION && descsz == 4) {
+			*flags |= FLAGS_DID_OS_NOTE;
+			if (do_note_netbsd_version(ms, swap, &nbuf[doff]) == -1)
+				return -1;
+			return 1;
+		}
+	}
+
+	if (namesz == 8 && strcmp(name, "FreeBSD") == 0) {
+	    	if (type == NT_FREEBSD_VERSION && descsz == 4) {
+			*flags |= FLAGS_DID_OS_NOTE;
+			if (do_note_freebsd_version(ms, swap, &nbuf[doff])
+			    == -1)
+				return -1;
+			return 1;
+		}
+	}
+
+	if (namesz == 8 && strcmp(name, "OpenBSD") == 0 &&
+	    type == NT_OPENBSD_VERSION && descsz == 4) {
+		*flags |= FLAGS_DID_OS_NOTE;
+		if (file_printf(ms, ", for OpenBSD") == -1)
+			return -1;
+		/* Content of note is always 0 */
+		return 1;
+	}
+
+	if (namesz == 10 && strcmp(name, "DragonFly") == 0 &&
+	    type == NT_DRAGONFLY_VERSION && descsz == 4) {
+		uint32_t desc;
+		*flags |= FLAGS_DID_OS_NOTE;
+		if (file_printf(ms, ", for DragonFly") == -1)
+			return -1;
+		memcpy(&desc, &nbuf[doff], sizeof(desc));
+		desc = elf_getu32(swap, desc);
+		if (file_printf(ms, " %d.%d.%d", desc / 100000,
+		    desc / 10000 % 10, desc % 10000) == -1)
+			return -1;
+		return 1;
+	}
+	return 0;
+}
+
+file_private int
+do_pax_note(struct magic_set *ms, unsigned char *nbuf, uint32_t type,
+    int swap, uint32_t namesz, uint32_t descsz,
+    size_t noff, size_t doff, int *flags)
+{
+	const char *name = RCAST(const char *, &nbuf[noff]);
+
+	if (namesz == 4 && strcmp(name, "PaX") == 0 &&
+	    type == NT_NETBSD_PAX && descsz == 4) {
+		static const char *pax[] = {
+		    "+mprotect",
+		    "-mprotect",
+		    "+segvguard",
+		    "-segvguard",
+		    "+ASLR",
+		    "-ASLR",
+		};
+		uint32_t desc;
+		size_t i;
+		int did = 0;
+
+		*flags |= FLAGS_DID_NETBSD_PAX;
+		memcpy(&desc, &nbuf[doff], sizeof(desc));
+		desc = elf_getu32(swap, desc);
+
+		if (desc && file_printf(ms, ", PaX: ") == -1)
+			return -1;
+
+		for (i = 0; i < __arraycount(pax); i++) {
+			if (((1 << CAST(int, i)) & desc) == 0)
+				continue;
+			if (file_printf(ms, "%s%s", did++ ? "," : "",
+			    pax[i]) == -1)
+				return -1;
+		}
+		return 1;
+	}
+	return 0;
+}
+
+file_private int
+do_core_note(struct magic_set *ms, unsigned char *nbuf, uint32_t type,
+    int swap, uint32_t namesz, uint32_t descsz,
+    size_t noff, size_t doff, int *flags, size_t size, int clazz)
+{
+#ifdef ELFCORE
+	char buf[256];
+	const char *name = RCAST(const char *, &nbuf[noff]);
+
+	int os_style = -1;
+	/*
+	 * Sigh.  The 2.0.36 kernel in Debian 2.1, at
+	 * least, doesn't correctly implement name
+	 * sections, in core dumps, as specified by
+	 * the "Program Linking" section of "UNIX(R) System
+	 * V Release 4 Programmer's Guide: ANSI C and
+	 * Programming Support Tools", because my copy
+	 * clearly says "The first 'namesz' bytes in 'name'
+	 * contain a *null-terminated* [emphasis mine]
+	 * character representation of the entry's owner
+	 * or originator", but the 2.0.36 kernel code
+	 * doesn't include the terminating null in the
+	 * name....
+	 */
+	if ((namesz == 4 && strncmp(name, "CORE", 4) == 0) ||
+	    (namesz == 5 && strcmp(name, "CORE") == 0)) {
+		os_style = OS_STYLE_SVR4;
+	}
+
+	if ((namesz == 8 && strcmp(name, "FreeBSD") == 0)) {
+		os_style = OS_STYLE_FREEBSD;
+	}
+
+	if ((namesz >= 11 && strncmp(name, "NetBSD-CORE", 11)
+	    == 0)) {
+		os_style = OS_STYLE_NETBSD;
+	}
+
+	if (os_style != -1 && (*flags & FLAGS_DID_CORE_STYLE) == 0) {
+		if (file_printf(ms, ", %s-style", os_style_names[os_style])
+		    == -1)
+			return -1;
+		*flags |= FLAGS_DID_CORE_STYLE;
+		*flags |= os_style;
+	}
+
+	switch (os_style) {
+	case OS_STYLE_NETBSD:
+		if (type == NT_NETBSD_CORE_PROCINFO) {
+			char sbuf[512];
+			struct NetBSD_elfcore_procinfo pi;
+			memset(&pi, 0, sizeof(pi));
+			memcpy(&pi, nbuf + doff, MIN(descsz, sizeof(pi)));
+
+			if (file_printf(ms, ", from '%.31s', pid=%u, uid=%u, "
+			    "gid=%u, nlwps=%u, lwp=%u (signal %u/code %u)",
+			    file_printable(ms, sbuf, sizeof(sbuf),
+			    RCAST(char *, pi.cpi_name), sizeof(pi.cpi_name)),
+			    elf_getu32(swap, CAST(uint32_t, pi.cpi_pid)),
+			    elf_getu32(swap, pi.cpi_euid),
+			    elf_getu32(swap, pi.cpi_egid),
+			    elf_getu32(swap, pi.cpi_nlwps),
+			    elf_getu32(swap, CAST(uint32_t, pi.cpi_siglwp)),
+			    elf_getu32(swap, pi.cpi_signo),
+			    elf_getu32(swap, pi.cpi_sigcode)) == -1)
+				return -1;
+
+			*flags |= FLAGS_DID_CORE;
+			return 1;
+		}
+		break;
+
+	case OS_STYLE_FREEBSD:
+		if (type == NT_PRPSINFO && *flags & FLAGS_IS_CORE) {
+			size_t argoff, pidoff;
+
+			if (clazz == ELFCLASS32)
+				argoff = 4 + 4 + 17;
+			else
+				argoff = 4 + 4 + 8 + 17;
+			if (file_printf(ms, ", from '%.80s'", nbuf + doff +
+			    argoff) == -1)
+				return -1;
+			pidoff = argoff + 81 + 2;
+			if (doff + pidoff + 4 <= size) {
+				if (file_printf(ms, ", pid=%u",
+				    elf_getu32(swap, *RCAST(uint32_t *, (nbuf +
+				    doff + pidoff)))) == -1)
+					return -1;
+			}
+			*flags |= FLAGS_DID_CORE;
+		}			    
+		break;
+
+	default:
+		if (type == NT_PRPSINFO && *flags & FLAGS_IS_CORE) {
+			size_t i, j;
+			unsigned char c;
+			/*
+			 * Extract the program name.  We assume
+			 * it to be 16 characters (that's what it
+			 * is in SunOS 5.x and Linux).
+			 *
+			 * Unfortunately, it's at a different offset
+			 * in various OSes, so try multiple offsets.
+			 * If the characters aren't all printable,
+			 * reject it.
+			 */
+			for (i = 0; i < NOFFSETS; i++) {
+				unsigned char *cname, *cp;
+				size_t reloffset = prpsoffsets(i);
+				size_t noffset = doff + reloffset;
+				size_t k;
+				for (j = 0; j < 16; j++, noffset++,
+				    reloffset++) {
+					/*
+					 * Make sure we're not past
+					 * the end of the buffer; if
+					 * we are, just give up.
+					 */
+					if (noffset >= size)
+						goto tryanother;
+
+					/*
+					 * Make sure we're not past
+					 * the end of the contents;
+					 * if we are, this obviously
+					 * isn't the right offset.
+					 */
+					if (reloffset >= descsz)
+						goto tryanother;
+
+					c = nbuf[noffset];
+					if (c == '\0') {
+						/*
+						 * A '\0' at the
+						 * beginning is
+						 * obviously wrong.
+						 * Any other '\0'
+						 * means we're done.
+						 */
+						if (j == 0)
+							goto tryanother;
+						else
+							break;
+					} else {
+						/*
+						 * A nonprintable
+						 * character is also
+						 * wrong.
+						 */
+						if (!isprint(c) || isquote(c))
+							goto tryanother;
+					}
+				}
+				/*
+				 * Well, that worked.
+				 */
+
+				/*
+				 * Try next offsets, in case this match is
+				 * in the middle of a string.
+				 */
+				for (k = i + 1 ; k < NOFFSETS; k++) {
+					size_t no;
+					int adjust = 1;
+					if (prpsoffsets(k) >= prpsoffsets(i))
+						continue;
+					/*
+					 * pr_fname == pr_psargs - 16 &&
+					 * non-nul-terminated fname (qemu)
+					 */
+					if (prpsoffsets(k) ==
+					    prpsoffsets(i) - 16 && j == 16)
+						continue;
+					for (no = doff + prpsoffsets(k);
+					     no < doff + prpsoffsets(i); no++)
+						adjust = adjust
+						         && isprint(nbuf[no]);
+					if (adjust)
+						i = k;
+				}
+
+				cname = CAST(unsigned char *,
+				    &nbuf[doff + prpsoffsets(i)]);
+				for (cp = cname; cp < nbuf + size && *cp
+				    && isprint(*cp); cp++)
+					continue;
+				/*
+				 * Linux apparently appends a space at the end
+				 * of the command line: remove it.
+				 */
+				while (cp > cname && isspace(cp[-1]))
+					cp--;
+				if (file_printf(ms, ", from '%s'",
+				    file_copystr(buf, sizeof(buf),
+				    CAST(size_t, cp - cname),
+				    RCAST(char *, cname))) == -1)
+					return -1;
+				*flags |= FLAGS_DID_CORE;
+				return 1;
+
+			tryanother:
+				;
+			}
+		}
+		break;
+	}
+#endif
+	return 0;
+}
+
+file_private off_t
+get_offset_from_virtaddr(struct magic_set *ms, int swap, int clazz, int fd,
+    off_t off, int num, off_t fsize, uint64_t virtaddr)
+{
+	Elf32_Phdr ph32;
+	Elf64_Phdr ph64;
+
+	/*
+	 * Loop through all the program headers and find the header with
+	 * virtual address in which the "virtaddr" belongs to.
+	 */
+	for ( ; num; num--) {
+		if (pread(fd, xph_addr, xph_sizeof, off) <
+		    CAST(ssize_t, xph_sizeof)) {
+			if (file_printf(ms,
+			    ", can't read elf program header at %jd",
+			    (intmax_t)off) == -1)
+				return -1;
+			return 0;
+
+		}
+		off += xph_sizeof;
+
+		if (fsize != SIZE_UNKNOWN && xph_offset > fsize) {
+			/* Perhaps warn here */
+			continue;
+		}
+
+		if (virtaddr >= xph_vaddr && virtaddr < xph_vaddr + xph_filesz)
+			return xph_offset + (virtaddr - xph_vaddr);
+	}
+	return 0;
+}
+
+file_private size_t
+get_string_on_virtaddr(struct magic_set *ms,
+    int swap, int clazz, int fd, off_t ph_off, int ph_num,
+    off_t fsize, uint64_t virtaddr, char *buf, ssize_t buflen)
+{
+	char *bptr;
+	off_t offset;
+
+	if (buflen == 0)
+		return 0;
+
+	offset = get_offset_from_virtaddr(ms, swap, clazz, fd, ph_off, ph_num,
+	    fsize, virtaddr);
+	if (offset < 0 ||
+	    (buflen = pread(fd, buf, CAST(size_t, buflen), offset)) <= 0) {
+		(void)file_printf(ms, ", can't read elf string at %jd",
+		    (intmax_t)offset);
+		return 0;
+	}
+
+	buf[buflen - 1] = '\0';
+
+	/* We expect only printable characters, so return if buffer contains
+	 * non-printable character before the '\0' or just '\0'. */
+	for (bptr = buf; *bptr && isprint(CAST(unsigned char, *bptr)); bptr++)
+		continue;
+	if (*bptr != '\0')
+		return 0;
+
+	return bptr - buf;
+}
+
+
+/*ARGSUSED*/
+file_private int
+do_auxv_note(struct magic_set *ms, unsigned char *nbuf, uint32_t type,
+    int swap, uint32_t namesz __attribute__((__unused__)),
+    uint32_t descsz __attribute__((__unused__)),
+    size_t noff __attribute__((__unused__)), size_t doff,
+    int *flags, size_t size __attribute__((__unused__)), int clazz,
+    int fd, off_t ph_off, int ph_num, off_t fsize)
+{
+#ifdef ELFCORE
+	Aux32Info auxv32;
+	Aux64Info auxv64;
+	size_t elsize = xauxv_sizeof;
+	const char *tag;
+	int is_string;
+	size_t nval, off;
+
+	if ((*flags & (FLAGS_IS_CORE|FLAGS_DID_CORE_STYLE)) !=
+	    (FLAGS_IS_CORE|FLAGS_DID_CORE_STYLE))
+		return 0;
+
+	switch (*flags & FLAGS_CORE_STYLE) {
+	case OS_STYLE_SVR4:
+		if (type != NT_AUXV)
+			return 0;
+		break;
+#ifdef notyet
+	case OS_STYLE_NETBSD:
+		if (type != NT_NETBSD_CORE_AUXV)
+			return 0;
+		break;
+	case OS_STYLE_FREEBSD:
+		if (type != NT_FREEBSD_PROCSTAT_AUXV)
+			return 0;
+		break;
+#endif
+	default:
+		return 0;
+	}
+
+	*flags |= FLAGS_DID_AUXV;
+
+	nval = 0;
+	for (off = 0; off + elsize <= descsz; off += elsize) {
+		memcpy(xauxv_addr, &nbuf[doff + off], xauxv_sizeof);
+		/* Limit processing to 50 vector entries to prevent DoS */
+		if (nval++ >= 50) {
+			file_error(ms, 0, "Too many ELF Auxv elements");
+			return 1;
+		}
+
+		switch(xauxv_type) {
+		case AT_LINUX_EXECFN:
+			is_string = 1;
+			tag = "execfn";
+			break;
+		case AT_LINUX_PLATFORM:
+			is_string = 1;
+			tag = "platform";
+			break;
+		case AT_LINUX_UID:
+			is_string = 0;
+			tag = "real uid";
+			break;
+		case AT_LINUX_GID:
+			is_string = 0;
+			tag = "real gid";
+			break;
+		case AT_LINUX_EUID:
+			is_string = 0;
+			tag = "effective uid";
+			break;
+		case AT_LINUX_EGID:
+			is_string = 0;
+			tag = "effective gid";
+			break;
+		default:
+			is_string = 0;
+			tag = NULL;
+			break;
+		}
+
+		if (tag == NULL)
+			continue;
+
+		if (is_string) {
+			char buf[256];
+			ssize_t buflen;
+			buflen = get_string_on_virtaddr(ms, swap, clazz, fd,
+			    ph_off, ph_num, fsize, xauxv_val, buf, sizeof(buf));
+
+			if (buflen == 0)
+				continue;
+
+			if (file_printf(ms, ", %s: '%s'", tag, buf) == -1)
+				return -1;
+		} else {
+			if (file_printf(ms, ", %s: %d", tag,
+			    CAST(int, xauxv_val)) == -1)
+				return -1;
+		}
+	}
+	return 1;
+#else
+	return 0;
+#endif
+}
+
+file_private size_t
+dodynamic(struct magic_set *ms, void *vbuf, size_t offset, size_t size,
+    int clazz, int swap, int *pie, size_t *need)
+{
+	Elf32_Dyn dh32;
+	Elf64_Dyn dh64;
+	unsigned char *dbuf = CAST(unsigned char *, vbuf);
+
+	if (xdh_sizeof + offset > size) {
+		/*
+		 * We're out of note headers.
+		 */
+		return xdh_sizeof + offset;
+	}
+
+	memcpy(xdh_addr, &dbuf[offset], xdh_sizeof);
+	offset += xdh_sizeof;
+
+	switch (xdh_tag) {
+	case DT_FLAGS_1:
+		*pie = 1;
+		if (xdh_val & DF_1_PIE)
+			ms->mode |= 0111;
+		else
+			ms->mode &= ~0111;
+		break;
+	case DT_NEEDED:
+		(*need)++;
+		break;
+	default:
+		break;
+	}
+	return offset;
+}
+
+
+file_private size_t
+donote(struct magic_set *ms, void *vbuf, size_t offset, size_t size,
+    int clazz, int swap, size_t align, int *flags, uint16_t *notecount,
+    int fd, off_t ph_off, int ph_num, off_t fsize)
+{
+	Elf32_Nhdr nh32;
+	Elf64_Nhdr nh64;
+	size_t noff, doff;
+	uint32_t namesz, descsz;
+	char buf[256];
+	unsigned char *nbuf = CAST(unsigned char *, vbuf);
+
+	if (*notecount == 0)
+		return 0;
+	--*notecount;
+
+	if (xnh_sizeof + offset > size) {
+		/*
+		 * We're out of note headers.
+		 */
+		return xnh_sizeof + offset;
+	}
+	/*XXX: GCC */
+	memset(&nh32, 0, sizeof(nh32));
+	memset(&nh64, 0, sizeof(nh64));
+
+	memcpy(xnh_addr, &nbuf[offset], xnh_sizeof);
+	offset += xnh_sizeof;
+
+	namesz = xnh_namesz;
+	descsz = xnh_descsz;
+
+	if ((namesz == 0) && (descsz == 0)) {
+		/*
+		 * We're out of note headers.
+		 */
+		return (offset >= size) ? offset : size;
+	}
+
+	if (namesz & 0x80000000) {
+	    (void)file_printf(ms, ", bad note name size %#lx",
+		CAST(unsigned long, namesz));
+	    return 0;
+	}
+
+	if (descsz & 0x80000000) {
+		(void)file_printf(ms, ", bad note description size %#lx",
+		    CAST(unsigned long, descsz));
+		return 0;
+	}
+
+	noff = offset;
+	doff = ELF_ALIGN(offset + namesz);
+
+	if (offset + namesz > size) {
+		/*
+		 * We're past the end of the buffer.
+		 */
+		return doff;
+	}
+
+	offset = ELF_ALIGN(doff + descsz);
+	if (doff + descsz > size) {
+		/*
+		 * We're past the end of the buffer.
+		 */
+		return (offset >= size) ? offset : size;
+	}
+
+
+	if ((*flags & FLAGS_DID_OS_NOTE) == 0) {
+		if (do_os_note(ms, nbuf, xnh_type, swap,
+		    namesz, descsz, noff, doff, flags))
+			return offset;
+	}
+
+	if ((*flags & FLAGS_DID_BUILD_ID) == 0) {
+		if (do_bid_note(ms, nbuf, xnh_type, swap,
+		    namesz, descsz, noff, doff, flags))
+			return offset;
+	}
+
+	if ((*flags & FLAGS_DID_NETBSD_PAX) == 0) {
+		if (do_pax_note(ms, nbuf, xnh_type, swap,
+		    namesz, descsz, noff, doff, flags))
+			return offset;
+	}
+
+	if ((*flags & FLAGS_DID_CORE) == 0) {
+		if (do_core_note(ms, nbuf, xnh_type, swap,
+		    namesz, descsz, noff, doff, flags, size, clazz))
+			return offset;
+	}
+
+	if ((*flags & FLAGS_DID_AUXV) == 0) {
+		if (do_auxv_note(ms, nbuf, xnh_type, swap,
+			namesz, descsz, noff, doff, flags, size, clazz,
+			fd, ph_off, ph_num, fsize))
+			return offset;
+	}
+
+	if (namesz == 7 && strcmp(RCAST(char *, &nbuf[noff]), "NetBSD") == 0) {
+		int descw, flag;
+		const char *str, *tag;
+		if (descsz > 100)
+			descsz = 100;
+		switch (xnh_type) {
+	    	case NT_NETBSD_VERSION:
+			return offset;
+		case NT_NETBSD_MARCH:
+			flag = FLAGS_DID_NETBSD_MARCH;
+			tag = "compiled for";
+			break;
+		case NT_NETBSD_CMODEL:
+			flag = FLAGS_DID_NETBSD_CMODEL;
+			tag = "compiler model";
+			break;
+		case NT_NETBSD_EMULATION:
+			flag = FLAGS_DID_NETBSD_EMULATION;
+			tag = "emulation:";
+			break;
+		default:
+			if (*flags & FLAGS_DID_NETBSD_UNKNOWN)
+				return offset;
+			*flags |= FLAGS_DID_NETBSD_UNKNOWN;
+			if (file_printf(ms, ", note=%u", xnh_type) == -1)
+				return offset;
+			return offset;
+		}
+
+		if (*flags & flag)
+			return offset;
+		str = RCAST(const char *, &nbuf[doff]);
+		descw = CAST(int, descsz);
+		*flags |= flag;
+		file_printf(ms, ", %s: %s", tag,
+		    file_copystr(buf, sizeof(buf), descw, str));
+		return offset;
+	}
+
+	return offset;
+}
+
+/* SunOS 5.x hardware capability descriptions */
+typedef struct cap_desc {
+	uint64_t cd_mask;
+	const char *cd_name;
+} cap_desc_t;
+
+static const cap_desc_t cap_desc_sparc[] = {
+	{ AV_SPARC_MUL32,		"MUL32" },
+	{ AV_SPARC_DIV32,		"DIV32" },
+	{ AV_SPARC_FSMULD,		"FSMULD" },
+	{ AV_SPARC_V8PLUS,		"V8PLUS" },
+	{ AV_SPARC_POPC,		"POPC" },
+	{ AV_SPARC_VIS,			"VIS" },
+	{ AV_SPARC_VIS2,		"VIS2" },
+	{ AV_SPARC_ASI_BLK_INIT,	"ASI_BLK_INIT" },
+	{ AV_SPARC_FMAF,		"FMAF" },
+	{ AV_SPARC_FJFMAU,		"FJFMAU" },
+	{ AV_SPARC_IMA,			"IMA" },
+	{ 0, NULL }
+};
+
+static const cap_desc_t cap_desc_386[] = {
+	{ AV_386_FPU,			"FPU" },
+	{ AV_386_TSC,			"TSC" },
+	{ AV_386_CX8,			"CX8" },
+	{ AV_386_SEP,			"SEP" },
+	{ AV_386_AMD_SYSC,		"AMD_SYSC" },
+	{ AV_386_CMOV,			"CMOV" },
+	{ AV_386_MMX,			"MMX" },
+	{ AV_386_AMD_MMX,		"AMD_MMX" },
+	{ AV_386_AMD_3DNow,		"AMD_3DNow" },
+	{ AV_386_AMD_3DNowx,		"AMD_3DNowx" },
+	{ AV_386_FXSR,			"FXSR" },
+	{ AV_386_SSE,			"SSE" },
+	{ AV_386_SSE2,			"SSE2" },
+	{ AV_386_PAUSE,			"PAUSE" },
+	{ AV_386_SSE3,			"SSE3" },
+	{ AV_386_MON,			"MON" },
+	{ AV_386_CX16,			"CX16" },
+	{ AV_386_AHF,			"AHF" },
+	{ AV_386_TSCP,			"TSCP" },
+	{ AV_386_AMD_SSE4A,		"AMD_SSE4A" },
+	{ AV_386_POPCNT,		"POPCNT" },
+	{ AV_386_AMD_LZCNT,		"AMD_LZCNT" },
+	{ AV_386_SSSE3,			"SSSE3" },
+	{ AV_386_SSE4_1,		"SSE4.1" },
+	{ AV_386_SSE4_2,		"SSE4.2" },
+	{ 0, NULL }
+};
+
+file_private int
+doshn(struct magic_set *ms, int clazz, int swap, int fd, off_t off, int num,
+    size_t size, off_t fsize, int mach, int strtab, int *flags,
+    uint16_t *notecount)
+{
+	Elf32_Shdr sh32;
+	Elf64_Shdr sh64;
+	int stripped = 1, has_debug_info = 0;
+	size_t nbadcap = 0;
+	void *nbuf;
+	off_t noff, coff, name_off, offs;
+	uint64_t cap_hw1 = 0;	/* SunOS 5.x hardware capabilities */
+	uint64_t cap_sf1 = 0;	/* SunOS 5.x software capabilities */
+	char name[50];
+	ssize_t namesize;
+
+	if (ms->flags & MAGIC_MIME)
+		return 0;
+
+	if (num == 0) {
+		if (file_printf(ms, ", no section header") == -1)
+			return -1;
+		return 0;
+	}
+	if (size != xsh_sizeof) {
+		if (file_printf(ms, ", corrupted section header size") == -1)
+			return -1;
+		return 0;
+	}
+
+	/* Read offset of name section to be able to read section names later */
+	offs = CAST(off_t, (off + size * strtab));
+	if (pread(fd, xsh_addr, xsh_sizeof, offs) < CAST(ssize_t, xsh_sizeof)) {
+		if (file_printf(ms, ", missing section headers at %jd",
+		    (intmax_t)offs) == -1)
+			return -1;
+		return 0;
+	}
+	name_off = xsh_offset;
+
+	if (fsize != SIZE_UNKNOWN && fsize < name_off) {
+		if (file_printf(ms, ", too large section header offset %jd",
+		    (intmax_t)name_off) == -1)
+			return -1;
+		return 0;
+	}
+
+	for ( ; num; num--) {
+		/* Read the name of this section. */
+		offs = name_off + xsh_name;
+		if ((namesize = pread(fd, name, sizeof(name) - 1, offs))
+		    == -1) {
+			if (file_printf(ms, 
+			    ", can't read name of elf section at %jd",
+			    (intmax_t)offs) == -1)
+				return -1;
+			return 0;
+		}
+		name[namesize] = '\0';
+		if (strcmp(name, ".debug_info") == 0) {
+			has_debug_info = 1;
+			stripped = 0;
+		}
+
+		if (pread(fd, xsh_addr, xsh_sizeof, off) <
+		    CAST(ssize_t, xsh_sizeof)) {
+			if (file_printf(ms, ", can't read elf section at %jd",
+			    (intmax_t)off) == -1)
+				return -1;
+			return 0;
+		}
+		off += size;
+
+		/* Things we can determine before we seek */
+		switch (xsh_type) {
+		case SHT_SYMTAB:
+#if 0
+		case SHT_DYNSYM:
+#endif
+			stripped = 0;
+			break;
+		default:
+			if (fsize != SIZE_UNKNOWN && xsh_offset > fsize) {
+				/* Perhaps warn here */
+				continue;
+			}
+			break;
+		}
+
+
+		/* Things we can determine when we seek */
+		switch (xsh_type) {
+		case SHT_NOTE:
+			if (CAST(uintmax_t, (xsh_size + xsh_offset)) >
+			    CAST(uintmax_t, fsize)) {
+				if (file_printf(ms,
+				    ", note offset/size %#" INTMAX_T_FORMAT
+				    "x+%#" INTMAX_T_FORMAT "x exceeds"
+				    " file size %#" INTMAX_T_FORMAT "x",
+				    CAST(uintmax_t, xsh_offset),
+				    CAST(uintmax_t, xsh_size),
+				    CAST(uintmax_t, fsize)) == -1)
+					return -1;
+				return 0;
+			}
+			if (xsh_size > MAX_SHSIZE) {
+				file_error(ms, errno, "Note section size too "
+				    "big (%ju > %u)", (uintmax_t)xsh_size,
+				    MAX_SHSIZE);
+				return -1;
+			}
+			if ((nbuf = malloc(xsh_size)) == NULL) {
+				file_error(ms, errno, "Cannot allocate memory"
+				    " for note");
+				return -1;
+			}
+			offs = xsh_offset;
+			if (pread(fd, nbuf, xsh_size, offs) <
+			    CAST(ssize_t, xsh_size)) {
+				free(nbuf);
+				if (file_printf(ms,
+				    ", can't read elf note at %jd",
+				    (intmax_t)offs) == -1)
+					return -1;
+				return 0;
+			}
+
+			noff = 0;
+			for (;;) {
+				if (noff >= CAST(off_t, xsh_size))
+					break;
+				noff = donote(ms, nbuf, CAST(size_t, noff),
+				    xsh_size, clazz, swap, 4, flags, notecount,
+				    fd, 0, 0, 0);
+				if (noff == 0)
+					break;
+			}
+			free(nbuf);
+			break;
+		case SHT_SUNW_cap:
+			switch (mach) {
+			case EM_SPARC:
+			case EM_SPARCV9:
+			case EM_IA_64:
+			case EM_386:
+			case EM_AMD64:
+				break;
+			default:
+				goto skip;
+			}
+
+			if (nbadcap > 5)
+				break;
+			if (lseek(fd, xsh_offset, SEEK_SET)
+			    == CAST(off_t, -1)) {
+				file_badseek(ms);
+				return -1;
+			}
+			coff = 0;
+			for (;;) {
+				Elf32_Cap cap32;
+				Elf64_Cap cap64;
+				char cbuf[/*CONSTCOND*/
+				    MAX(sizeof(cap32), sizeof(cap64))];
+				if ((coff += xcap_sizeof) >
+				    CAST(off_t, xsh_size))
+					break;
+				if (read(fd, cbuf, CAST(size_t, xcap_sizeof)) !=
+				    CAST(ssize_t, xcap_sizeof)) {
+					file_badread(ms);
+					return -1;
+				}
+				if (cbuf[0] == 'A') {
+#ifdef notyet
+					char *p = cbuf + 1;
+					uint32_t len, tag;
+					memcpy(&len, p, sizeof(len));
+					p += 4;
+					len = getu32(swap, len);
+					if (memcmp("gnu", p, 3) != 0) {
+					    if (file_printf(ms,
+						", unknown capability %.3s", p)
+						== -1)
+						return -1;
+					    break;
+					}
+					p += strlen(p) + 1;
+					tag = *p++;
+					memcpy(&len, p, sizeof(len));
+					p += 4;
+					len = getu32(swap, len);
+					if (tag != 1) {
+					    if (file_printf(ms, ", unknown gnu"
+						" capability tag %d", tag)
+						== -1)
+						return -1;
+					    break;
+					}
+					// gnu attributes
+#endif
+					break;
+				}
+				memcpy(xcap_addr, cbuf, xcap_sizeof);
+				switch (xcap_tag) {
+				case CA_SUNW_NULL:
+					break;
+				case CA_SUNW_HW_1:
+					cap_hw1 |= xcap_val;
+					break;
+				case CA_SUNW_SF_1:
+					cap_sf1 |= xcap_val;
+					break;
+				default:
+					if (file_printf(ms,
+					    ", with unknown capability "
+					    "%#" INT64_T_FORMAT "x = %#"
+					    INT64_T_FORMAT "x",
+					    CAST(unsigned long long, xcap_tag),
+					    CAST(unsigned long long, xcap_val))
+					    == -1)
+						return -1;
+					if (nbadcap++ > 2)
+						coff = xsh_size;
+					break;
+				}
+			}
+			/*FALLTHROUGH*/
+		skip:
+		default:
+			break;
+		}
+	}
+
+	if (has_debug_info) {
+		if (file_printf(ms, ", with debug_info") == -1)
+			return -1;
+	}
+	if (file_printf(ms, ", %sstripped", stripped ? "" : "not ") == -1)
+		return -1;
+	if (cap_hw1) {
+		const cap_desc_t *cdp;
+		switch (mach) {
+		case EM_SPARC:
+		case EM_SPARC32PLUS:
+		case EM_SPARCV9:
+			cdp = cap_desc_sparc;
+			break;
+		case EM_386:
+		case EM_IA_64:
+		case EM_AMD64:
+			cdp = cap_desc_386;
+			break;
+		default:
+			cdp = NULL;
+			break;
+		}
+		if (file_printf(ms, ", uses") == -1)
+			return -1;
+		if (cdp) {
+			while (cdp->cd_name) {
+				if (cap_hw1 & cdp->cd_mask) {
+					if (file_printf(ms,
+					    " %s", cdp->cd_name) == -1)
+						return -1;
+					cap_hw1 &= ~cdp->cd_mask;
+				}
+				++cdp;
+			}
+			if (cap_hw1)
+				if (file_printf(ms,
+				    " unknown hardware capability %#"
+				    INT64_T_FORMAT "x",
+				    CAST(unsigned long long, cap_hw1)) == -1)
+					return -1;
+		} else {
+			if (file_printf(ms,
+			    " hardware capability %#" INT64_T_FORMAT "x",
+			    CAST(unsigned long long, cap_hw1)) == -1)
+				return -1;
+		}
+	}
+	if (cap_sf1) {
+		if (cap_sf1 & SF1_SUNW_FPUSED) {
+			if (file_printf(ms,
+			    (cap_sf1 & SF1_SUNW_FPKNWN)
+			    ? ", uses frame pointer"
+			    : ", not known to use frame pointer") == -1)
+				return -1;
+		}
+		cap_sf1 &= ~SF1_SUNW_MASK;
+		if (cap_sf1)
+			if (file_printf(ms,
+			    ", with unknown software capability %#"
+			    INT64_T_FORMAT "x",
+			    CAST(unsigned long long, cap_sf1)) == -1)
+				return -1;
+	}
+	return 0;
+}
+
+/*
+ * Look through the program headers of an executable image, to determine
+ * if it is statically or dynamically linked. If it has a dynamic section,
+ * it is pie, and does not have an interpreter or needed libraries, we
+ * call it static pie.
+ */
+file_private int
+dophn_exec(struct magic_set *ms, int clazz, int swap, int fd, off_t off,
+    int num, size_t size, off_t fsize, int sh_num, int *flags,
+    uint16_t *notecount)
+{
+	Elf32_Phdr ph32;
+	Elf64_Phdr ph64;
+	const char *linking_style;
+	unsigned char nbuf[BUFSIZ];
+	char ibuf[BUFSIZ];
+	char interp[BUFSIZ];
+	ssize_t bufsize;
+	size_t offset, align, need = 0;
+	int pie = 0, dynamic = 0;
+
+	if (num == 0) {
+		if (file_printf(ms, ", no program header") == -1)
+			return -1;
+		return 0;
+	}
+	if (size != xph_sizeof) {
+		if (file_printf(ms, ", corrupted program header size") == -1)
+			return -1;
+		return 0;
+	}
+
+	interp[0] = '\0';
+  	for ( ; num; num--) {
+		int doread;
+		if (pread(fd, xph_addr, xph_sizeof, off) <
+		    CAST(ssize_t, xph_sizeof)) {
+			if (file_printf(ms,
+			    ", can't read elf program headers at %jd",
+			    (intmax_t)off) == -1)
+				return -1;
+			return 0;
+		}
+
+		off += size;
+		bufsize = 0;
+		align = 4;
+
+		/* Things we can determine before we seek */
+		switch (xph_type) {
+		case PT_DYNAMIC:
+			doread = 1;
+			break;
+		case PT_NOTE:
+			if (sh_num)	/* Did this through section headers */
+				continue;
+			if (((align = xph_align) & 0x80000000UL) != 0 ||
+			    align < 4) {
+				if (file_printf(ms,
+				    ", invalid note alignment %#lx",
+				    CAST(unsigned long, align)) == -1)
+					return -1;
+				align = 4;
+			}
+			/*FALLTHROUGH*/
+		case PT_INTERP:
+			doread = 1;
+			break;
+		default:
+			doread = 0;
+			if (fsize != SIZE_UNKNOWN && xph_offset > fsize) {
+				/* Maybe warn here? */
+				continue;
+			}
+			break;
+		}
+
+		if (doread) {
+			size_t len = xph_filesz < sizeof(nbuf) ? xph_filesz
+			    : sizeof(nbuf);
+			off_t offs = xph_offset;
+			bufsize = pread(fd, nbuf, len, offs);
+			if (bufsize == -1) {
+				if (file_printf(ms,
+				    ", can't read section at %jd",
+				    (intmax_t)offs) == -1)
+					return -1;
+				return 0;
+			}
+		}
+
+		/* Things we can determine when we seek */
+		switch (xph_type) {
+		case PT_DYNAMIC:
+			dynamic = 1;
+			offset = 0;
+			// Let DF_1 determine if we are PIE or not.
+			ms->mode &= ~0111;
+			for (;;) {
+				if (offset >= CAST(size_t, bufsize))
+					break;
+				offset = dodynamic(ms, nbuf, offset,
+				    CAST(size_t, bufsize), clazz, swap,
+				    &pie, &need);
+				if (offset == 0)
+					break;
+			}
+			if (ms->flags & MAGIC_MIME)
+				continue;
+			break;
+
+		case PT_INTERP:
+			need++;
+			if (ms->flags & MAGIC_MIME)
+				continue;
+			if (bufsize && nbuf[0]) {
+				nbuf[bufsize - 1] = '\0';
+				memcpy(interp, nbuf, CAST(size_t, bufsize));
+			} else
+				strlcpy(interp, "*empty*", sizeof(interp));
+			break;
+		case PT_NOTE:
+			if (ms->flags & MAGIC_MIME)
+				return 0;
+			/*
+			 * This is a PT_NOTE section; loop through all the notes
+			 * in the section.
+			 */
+			offset = 0;
+			for (;;) {
+				if (offset >= CAST(size_t, bufsize))
+					break;
+				offset = donote(ms, nbuf, offset,
+				    CAST(size_t, bufsize), clazz, swap, align,
+				    flags, notecount, fd, 0, 0, 0);
+				if (offset == 0)
+					break;
+			}
+			break;
+		default:
+			if (ms->flags & MAGIC_MIME)
+				continue;
+			break;
+		}
+	}
+	if (ms->flags & MAGIC_MIME)
+		return 0;
+	if (dynamic) {
+		if (pie && need == 0)
+			linking_style = "static-pie";
+		else
+			linking_style = "dynamically";
+	} else {
+		linking_style = "statically";
+	}
+	if (file_printf(ms, ", %s linked", linking_style) == -1)
+		return -1;
+	if (interp[0])
+		if (file_printf(ms, ", interpreter %s", file_printable(ms,
+		    ibuf, sizeof(ibuf), interp, sizeof(interp))) == -1)
+			return -1;
+	return 0;
+}
+
+
+file_protected int
+file_tryelf(struct magic_set *ms, const struct buffer *b)
+{
+	int fd = b->fd;
+	const unsigned char *buf = CAST(const unsigned char *, b->fbuf);
+	size_t nbytes = b->flen;
+	union {
+		int32_t l;
+		char c[sizeof(int32_t)];
+	} u;
+	int clazz;
+	int swap;
+	struct stat st;
+	const struct stat *stp;
+	off_t fsize;
+	int flags = 0;
+	Elf32_Ehdr elf32hdr;
+	Elf64_Ehdr elf64hdr;
+	uint16_t type, phnum, shnum, notecount;
+
+	if (ms->flags & (MAGIC_APPLE|MAGIC_EXTENSION))
+		return 0;
+	/*
+	 * ELF executables have multiple section headers in arbitrary
+	 * file locations and thus file(1) cannot determine it from easily.
+	 * Instead we traverse thru all section headers until a symbol table
+	 * one is found or else the binary is stripped.
+	 * Return immediately if it's not ELF (so we avoid pipe2file unless
+	 * needed).
+	 */
+	if (buf[EI_MAG0] != ELFMAG0
+	    || (buf[EI_MAG1] != ELFMAG1 && buf[EI_MAG1] != OLFMAG1)
+	    || buf[EI_MAG2] != ELFMAG2 || buf[EI_MAG3] != ELFMAG3)
+		return 0;
+
+	/*
+	 * If we cannot seek, it must be a pipe, socket or fifo.
+	 */
+	if((lseek(fd, CAST(off_t, 0), SEEK_SET) == CAST(off_t, -1))
+	    && (errno == ESPIPE))
+		fd = file_pipe2file(ms, fd, buf, nbytes);
+
+	if (fd == -1) {
+		file_badread(ms);
+		return -1;
+	}
+
+	stp = &b->st;
+	/*
+	 * b->st.st_size != 0 if previous fstat() succeeded,
+	 * which is likely, we can avoid extra stat() call.
+	 */
+	if (b->st.st_size == 0) {
+		stp = &st;
+		if (fstat(fd, &st) == -1) {
+			file_badread(ms);
+			return -1;
+		}
+	}
+	if (S_ISREG(stp->st_mode) || stp->st_size != 0)
+		fsize = stp->st_size;
+	else
+		fsize = SIZE_UNKNOWN;
+
+	clazz = buf[EI_CLASS];
+
+	switch (clazz) {
+	case ELFCLASS32:
+#undef elf_getu
+#define elf_getu(a, b)	elf_getu32(a, b)
+#undef elfhdr
+#define elfhdr elf32hdr
+#include "elfclass.h"
+	case ELFCLASS64:
+#undef elf_getu
+#define elf_getu(a, b)	elf_getu64(a, b)
+#undef elfhdr
+#define elfhdr elf64hdr
+#include "elfclass.h"
+	default:
+	    if (file_printf(ms, ", unknown class %d", clazz) == -1)
+		    return -1;
+	    break;
+	}
+	return 0;
+}
+#endif