Initial commit of Mach-O related files. (bug #236512)

- added macho.h (Mach-O definitions) and scanmacho.c (the scanelf
  equivalent for Mach-O files)
- changed the Makefile to compile scanmacho (tested compilation on
  Darwin and Solaris)
- changed paxinc.h to include macho.h and paxmacho.h
- extended paxmacho.[ch] with relevant code to read meta information
  from Mach-O files

1 files changed, 39 insertions, 12 deletions

diff --git a/paxmacho.h b/paxmacho.h
index a50c700..978f763 100644
--- a/paxmacho.h
+++ b/paxmacho.h
@@ -1,10 +1,11 @@
 /*
  * Copyright 2005-2007 Gentoo Foundation
  * Distributed under the terms of the GNU General Public License v2
- * $Header: /var/cvsroot/gentoo-projects/pax-utils/paxmacho.h,v 1.3 2007/05/23 22:27:27 solar Exp $
+ * $Header: /var/cvsroot/gentoo-projects/pax-utils/paxmacho.h,v 1.4 2008/09/08 07:02:56 grobian Exp $
  *
  * Copyright 2005-2007 Ned Ludd        - <solar@gentoo.org>
  * Copyright 2005-2007 Mike Frysinger  - <vapier@gentoo.org>
+ *                2008 Fabian Groffen  - <grobian@gentoo.org>
  *
  * Make sure all of the common mach-o stuff is setup as we expect
  */
@@ -12,18 +13,44 @@
 #ifndef _PAX_MACHO_H
 #define _PAX_MACHO_H
 
+#include "macho.h"
+
+typedef struct _fatobj {
+	char *data;                 /* mmapped image of the whole file */
+	size_t len;                 /* length of data (file length) */
+	int fd;                     /* open filedescriptor to the file */
+	const char *filename;       /* full filename */
+	const char *base_filename;  /* basename of filename (don't free) */
+	char swapped;               /* whether values need to be swapped */
+	char ismach64;              /* whether mach_header_64 is in use */
+	char isbigendian;			/* whether the byte order is big-endian */
+	union {
+		struct mach_header *hdr32;    /* pointer to arch Mach-O header */
+		struct mach_header_64 *hdr64; /* 64-bits variant */
+	} mhdr;
+	char *mhdata;               /* pointer to the image of the mach_header */
+	struct _fatobj *next;       /* pointer to the next arch */
+} fatobj;
+
 typedef struct {
-	void *mhdr;
-	char *data;
-	uint32_t macho_class;
-	off_t len;
-	int fd;
-	const char *filename;
-	const char *base_filename;
-} machoobj;
+	char *data;                 /* pointer to the current command header */
+	struct load_command* lcmd;  /* the load command */
+	uint32_t cleft;             /* load commands left */
+	uint32_t align;             /* alignment size in bytes */
+	char swapped;               /* whether values need to be swapped */
+} loadcmd;
 
-machoobj *readmacho(const char *filename);
-void unreadmacho(machoobj *macho);
-const char *get_machomhtype(int mh_type);
+const char *get_machomhtype(fatobj *fobj);
+void get_machomhflags(fatobj *fobj, char **ret, size_t *ret_len);
+const char *get_machocputype(fatobj *fobj);
+const char *get_machosubcputype(fatobj *fobj);
+fatobj *readmacho(const char *filename);
+fatobj *readmacho_fd(const char *filename, int fd, size_t len);
+fatobj *readmacho_buffer(const char *filename, char *buffer, size_t buffer_len);
+void unreadmacho(fatobj *macho);
+loadcmd *firstloadcmd(fatobj *fobj);
+int nextloadcmd(loadcmd* lcmd);
+const char *get_machoendian(fatobj *fobj);
+const char *get_machomtype(fatobj *fobj);
 
 #endif /* _PAX_MACHO_H */