initial commit.

1 files changed, 52 insertions, 0 deletions

diff --git a/src/reader/pe_read_dos_header.c b/src/reader/pe_read_dos_header.c
new file mode 100644
index 0000000..75b7d31
--- /dev/null
+++ b/src/reader/pe_read_dos_header.c
@@ -0,0 +1,52 @@
+#include <endian.h>
+#include <string.h>
+
+#include <perk/perk.h>
+#include "perk_impl.h"
+
+int pe_read_dos_header(const struct pe_image_dos_hdr * p, struct pe_meta_image_dos_hdr * m)
+{
+	int i;
+
+	if ((p->dos_magic[0] != 'M') || (p->dos_magic[1] != 'Z'))
+		return PERK_BAD_DOS_HEADER;
+
+	#if (BYTE_ORDER == LITTLE_ENDIAN)
+
+	memcpy(m,p,sizeof(*p));
+
+	#else
+
+	m->dos_magic[0] = p->dos_magic[0];
+	m->dos_magic[1] = p->dos_magic[1];
+
+	m->dos_cblp	= pe_read_short(p->dos_cblp);
+	m->dos_cp	= pe_read_short(p->dos_cp);
+	m->dos_crlc	= pe_read_short(p->dos_crlc);
+	m->dos_cparhdr	= pe_read_short(p->dos_cparhdr);
+	m->dos_minalloc	= pe_read_short(p->dos_minalloc);
+	m->dos_maxalloc	= pe_read_short(p->dos_maxalloc);
+	m->dos_ss	= pe_read_short(p->dos_ss);
+	m->dos_sp	= pe_read_short(p->dos_sp);
+	m->dos_csum	= pe_read_short(p->dos_csum);
+	m->dos_ip	= pe_read_short(p->dos_ip);
+	m->dos_cs	= pe_read_short(p->dos_cs);
+	m->dos_lfarlc	= pe_read_short(p->dos_lfarlc);
+	m->dos_ovno	= pe_read_short(p->dos_ovno);
+
+
+	for (i=0; i<4; i++)
+		m->dos_res[i] = pe_read_short(&p->dos_res[2*i]);
+
+	m->dos_oemid	= pe_read_short(p->dos_oemid);
+	m->dos_oeminfo	= pe_read_short(p->dos_oeminfo);
+
+	for (i=0; i<10; i++)
+		m->dos_res2[i] = pe_read_short(&p->dos_res2[2*i]);
+
+	m->dos_lfanew	= pe_read_long(p->dos_lfanew);
+
+	#endif
+
+	return 0;
+};