output: header dump: added pe_hdrdump_image_dos_hdr().

5 files changed, 93 insertions, 0 deletions

diff --git a/include/perk/perk.h b/include/perk/perk.h
index d5ede02..16b60c4 100644
--- a/include/perk/perk.h
+++ b/include/perk/perk.h
@@ -203,6 +203,9 @@ perk_api int  pe_output_export_symbols  (const struct pe_driver_ctx *, const str
 perk_api int  pe_output_import_libraries(const struct pe_driver_ctx *, const struct pe_image_meta *);
 perk_api int  pe_output_mdso_libraries  (const struct pe_driver_ctx *, const struct pe_image_meta *);
 
+/* header dump api */
+perk_api int  pe_hdrdump_image_dos_hdr  (const struct pe_driver_ctx *, const struct pe_image_meta *);
+
 /* error trace api */
 perk_api int  pe_output_error_record    (const struct pe_driver_ctx *, const struct pe_error_info *);
 perk_api int  pe_output_error_vector    (const struct pe_driver_ctx *);
diff --git a/project/common.mk b/project/common.mk
index d71c08b..b12a040 100644
--- a/project/common.mk
+++ b/project/common.mk
@@ -2,6 +2,7 @@ API_SRCS = \
 	src/driver/pe_amain.c \
 	src/driver/pe_driver_ctx.c \
 	src/driver/pe_unit_ctx.c \
+	src/hdrdump/pe_hdrdump_image_dos_hdr.c \
 	src/info/pe_get_image_abi.c \
 	src/info/pe_get_image_framework.c \
 	src/info/pe_get_image_subsystem.c \
diff --git a/project/tree.mk b/project/tree.mk
index 7606638..e33a0f5 100644
--- a/project/tree.mk
+++ b/project/tree.mk
@@ -1,6 +1,7 @@
 tree.tag:
 		mkdir -p src
 		mkdir -p src/driver
+		mkdir -p src/hdrdump
 		mkdir -p src/info
 		mkdir -p src/internal
 		mkdir -p src/logic
diff --git a/src/hdrdump/pe_hdrdump_image_dos_hdr.c b/src/hdrdump/pe_hdrdump_image_dos_hdr.c
new file mode 100644
index 0000000..b413565
--- /dev/null
+++ b/src/hdrdump/pe_hdrdump_image_dos_hdr.c
@@ -0,0 +1,74 @@
+/***************************************************************/
+/*  perk: PE Resource Kit                                      */
+/*  Copyright (C) 2015--2017  Z. Gilboa                        */
+/*  Released under GPLv2 and GPLv3; see COPYING.PERK.          */
+/***************************************************************/
+
+#include <stdio.h>
+
+#include <perk/perk.h>
+#include <perk/perk_output.h>
+#include "perk_driver_impl.h"
+#include "perk_hdrdump_impl.h"
+#include "perk_dprintf_impl.h"
+#include "perk_errinfo_impl.h"
+
+#define PE_ADDR       meta->r_dos
+#define PE_RAW_STRUCT image_dos_hdr
+#define PE_OUTPUT(x)  PE_OUTPUT_TABLE(x)
+
+int pe_hdrdump_image_dos_hdr(
+	const struct pe_driver_ctx *	dctx,
+	const struct pe_image_meta *	meta)
+{
+	int		bits;
+	uint64_t	faddr;
+	uint64_t	vaddr;
+	char *		ch;
+	char		buf[8192];
+
+	if (!PE_ADDR)
+		return 0;
+
+	if ((bits = pe_image_bits(meta)) < 0)
+		return PERK_CUSTOM_ERROR(
+			dctx,PERK_ERR_UNSUPPORTED_ABI);
+
+	faddr = 0;
+	vaddr = meta->m_opt.oh_mem.coh_image_base;
+
+	ch  = buf;
+	ch += pe_output_hex_header(
+		ch,
+		"struct pe_raw_image_dos_hdr",
+		faddr,vaddr,bits);
+
+	ch += PE_OUTPUT(dos_magic);
+	ch += PE_OUTPUT(dos_cblp);
+	ch += PE_OUTPUT(dos_cp);
+	ch += PE_OUTPUT(dos_crlc);
+	ch += PE_OUTPUT(dos_cparhdr);
+	ch += PE_OUTPUT(dos_minalloc);
+	ch += PE_OUTPUT(dos_maxalloc);
+	ch += PE_OUTPUT(dos_ss);
+	ch += PE_OUTPUT(dos_sp);
+	ch += PE_OUTPUT(dos_csum);
+	ch += PE_OUTPUT(dos_ip);
+	ch += PE_OUTPUT(dos_cs);
+	ch += PE_OUTPUT(dos_lfarlc);
+	ch += PE_OUTPUT(dos_ovno);
+	ch += PE_OUTPUT(dos_res);
+	ch += PE_OUTPUT(dos_oemid);
+	ch += PE_OUTPUT(dos_oeminfo);
+	ch += PE_OUTPUT(dos_res2);
+	ch += PE_OUTPUT(dos_lfanew);
+
+	ch += pe_output_hex_footer(ch);
+
+	*ch = 0;
+
+	if (pe_dprintf(pe_driver_fdout(dctx),"%s",buf) < 0)
+		return PERK_FILE_ERROR(dctx);
+
+	return 0;
+}
diff --git a/src/internal/perk_hdrdump_impl.h b/src/internal/perk_hdrdump_impl.h
index 41528ad..5adb63d 100644
--- a/src/internal/perk_hdrdump_impl.h
+++ b/src/internal/perk_hdrdump_impl.h
@@ -46,4 +46,18 @@ size_t pe_output_raw_element(
 	uint32_t	moffset,
 	uint32_t	msize);
 
+static inline int pe_image_bits(const struct pe_image_meta * m)
+{
+	switch (m->m_abi) {
+		case PE_ABI_PE32:
+			return 32;
+
+		case PE_ABI_PE64:
+			return 64;
+
+		default:
+			return -1;
+	}
+}
+
 #endif