From feffc7263bb2fd33ae467de2dd51f1ddbbb1b895 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Fri, 8 May 2015 23:22:07 -0400
Subject: initial commit.

---
 src/headers/pe_get_image_entry_point_addr.c | 39 +++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 src/headers/pe_get_image_entry_point_addr.c

(limited to 'src/headers/pe_get_image_entry_point_addr.c')

diff --git a/src/headers/pe_get_image_entry_point_addr.c b/src/headers/pe_get_image_entry_point_addr.c
new file mode 100644
index 0000000..5869633
--- /dev/null
+++ b/src/headers/pe_get_image_entry_point_addr.c
@@ -0,0 +1,39 @@
+/*****************************************************************************/
+/*  pemagination: a (virtual) tour into portable bits and executable bytes   */
+/*  Copyright (C) 2013,2014,2015  Z. Gilboa                                  */
+/*  Released under GPLv2 and GPLv3; see COPYING.PEMAGINE.                    */
+/*****************************************************************************/
+
+#include <psxtypes/psxtypes.h>
+#include <pemagine/pe_structs.h>
+#include <pemagine/pe_consts.h>
+#include <pemagine/pemagine.h>
+
+
+pe_api
+void * pe_get_image_entry_point_addr(const void * base)
+{
+	uint16_t *		magic;
+	union pe_opt_hdr *	hdr;
+	uint32_t *		rva;
+
+	if (!(hdr = pe_get_image_opt_hdr_addr(base)))
+		return 0;
+
+	magic = (uint16_t *)hdr;
+
+	switch (*magic) {
+		case PE_MAGIC_PE32:
+			rva = (uint32_t *)hdr->opt_hdr_32.entry_point;
+			break;
+
+		case PE_MAGIC_PE32_PLUS:
+			rva = (uint32_t *)hdr->opt_hdr_64.entry_point;
+			break;
+
+		default:
+			return 0;
+	}
+
+	return pe_va_from_rva(base,*rva);
+}
-- 
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