initial commit.

6 files changed, 343 insertions, 0 deletions

diff --git a/src/reader/pe_read_coff_header.c b/src/reader/pe_read_coff_header.c
new file mode 100644
index 0000000..e7bdf8a
--- /dev/null
+++ b/src/reader/pe_read_coff_header.c
@@ -0,0 +1,37 @@
+#include <endian.h>
+#include <string.h>
+
+#include <perk/perk.h>
+#include "perk_impl.h"
+
+int pe_read_coff_header(const struct pe_coff_file_hdr * p, struct pe_meta_coff_file_hdr * m)
+{
+	if ((p->signature[0] != 'P') || (p->signature[1] != 'E')
+			|| *(uint16_t *)&p->signature[2])
+		return PERK_BAD_COFF_HEADER;
+
+	#if (BYTE_ORDER == LITTLE_ENDIAN)
+
+	memcpy(m,p,sizeof(*p));
+
+	#else
+
+	m->signature[0] = p->signature[0];
+	m->signature[1] = p->signature[1];
+	m->signature[2] = p->signature[2];
+	m->signature[3] = p->signature[3];
+
+	m->machine		= pe_read_short(p->machine);
+	m->num_of_sections	= pe_read_short(p->num_of_sections);
+
+	m->time_date_stamp	= pe_read_long(p->time_date_stamp);
+	m->ptr_to_sym_tbl	= pe_read_long(p->ptr_to_sym_tbl);
+	m->num_of_syms		= pe_read_long(p->num_of_syms);
+
+	m->size_of_opt_hdr	= pe_read_short(p->size_of_opt_hdr);
+	m->characteristics	= pe_read_short(p->characteristics);
+
+	#endif
+
+	return 0;
+};
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;
+};
diff --git a/src/reader/pe_read_export_header.c b/src/reader/pe_read_export_header.c
new file mode 100644
index 0000000..6a959c9
--- /dev/null
+++ b/src/reader/pe_read_export_header.c
@@ -0,0 +1,32 @@
+#include <endian.h>
+#include <string.h>
+
+#include <perk/perk.h>
+#include "perk_impl.h"
+
+int pe_read_export_header(const struct pe_export_hdr * p, struct pe_meta_export_hdr * m)
+{
+	#if (BYTE_ORDER == LITTLE_ENDIAN)
+
+	memcpy(m,p,sizeof(*p));
+
+	#else
+
+	m->export_flags		= pe_read_long(p->export_flags);
+	m->time_date_stamp	= pe_read_long(p->time_date_stamp);
+
+	m->major_ver		= pe_read_short(p->major_ver);
+	m->minor_ver		= pe_read_short(p->minor_ver);
+
+	m->name_rva		= pe_read_long(p->name_rva);
+	m->ordinal_base		= pe_read_long(p->ordinal_base);
+	m->addr_tbl_entries	= pe_read_long(p->addr_tbl_entries);
+	m->num_of_name_ptrs	= pe_read_long(p->num_of_name_ptrs);
+	m->export_addr_tbl_rva	= pe_read_long(p->export_addr_tbl_rva);
+	m->name_ptr_rva		= pe_read_long(p->name_ptr_rva);
+	m->ordinal_tbl_rva	= pe_read_long(p->ordinal_tbl_rva);
+
+	#endif
+
+	return 0;
+};
diff --git a/src/reader/pe_read_import_header.c b/src/reader/pe_read_import_header.c
new file mode 100644
index 0000000..7d71143
--- /dev/null
+++ b/src/reader/pe_read_import_header.c
@@ -0,0 +1,46 @@
+#include <endian.h>
+#include <string.h>
+
+#include <perk/perk.h>
+#include "perk_impl.h"
+
+int pe_read_import_header(const struct pe_import_hdr * p, struct pe_meta_import_hdr * m)
+{
+	#if (BYTE_ORDER == LITTLE_ENDIAN)
+
+	memcpy(m,p,sizeof(*p));
+
+	#else
+
+	m->import_lookup_tbl_rva	= pe_read_long(p->import_lookup_tbl_rva);
+	m->time_date_stamp		= pe_read_long(p->time_date_stamp);
+	m->forwarder_chain		= pe_read_long(p>forwarder_chain);
+	m->name_rva			= pe_read_long(p->name_rva);
+	m->import_addr_tbl_rva		= pe_read_long(p>import_addr_tbl_rva);
+
+	#endif
+
+	m->name  = 0;
+	m->aitems = 0;
+
+	return 0;
+};
+
+int pe_read_import_lookup_item(
+	const struct pe_import_lookup_item * p,
+	struct pe_meta_import_lookup_item * m,
+	uint32_t magic)
+{
+	switch (magic) {
+		case PE_MAGIC_PE32:
+			m->u.import_lookup_entry_64 = pe_read_long(p->u.import_lookup_entry_32);
+			return 0;
+
+		case PE_MAGIC_PE32_PLUS:
+			m->u.import_lookup_entry_64 = pe_read_quad(p->u.import_lookup_entry_64);
+			return 0;
+
+		default:
+			return PERK_BAD_IMAGE_TYPE;
+	}
+};
diff --git a/src/reader/pe_read_optional_header.c b/src/reader/pe_read_optional_header.c
new file mode 100644
index 0000000..701c6a9
--- /dev/null
+++ b/src/reader/pe_read_optional_header.c
@@ -0,0 +1,139 @@
+#include <endian.h>
+#include <string.h>
+
+#include <perk/perk.h>
+#include "perk_impl.h"
+
+int pe_read_optional_header(const union pe_opt_hdr * p, struct pe_meta_opt_hdr * m)
+{
+	struct pe_opt_hdr_std *		astd;
+	struct pe_opt_hdr_vers *	avers;
+	struct pe_opt_hdr_align *	aalign;
+	struct pe_opt_hdr_img *		aimg;
+	struct pe_opt_hdr_ldr *		aldr;
+	struct pe_opt_hdr_dirs *	adirs;
+	size_t				sdirs;
+
+	m->std.magic = pe_read_short(p->opt_hdr_32.magic);
+	memset(&m->dirs,0,sizeof(m->dirs));
+
+	#if (BYTE_ORDER == LITTLE_ENDIAN)
+
+	memcpy(&m->std,p,sizeof(struct pe_meta_opt_hdr_std));
+
+	switch (m->std.magic) {
+		case PE_MAGIC_PE32:
+			memcpy(&m->vers,&p->opt_hdr_32.major_os_ver,sizeof(struct pe_meta_opt_hdr_vers));
+			memcpy(&m->align,&p->opt_hdr_32.section_align,sizeof(struct pe_meta_opt_hdr_align));
+			memcpy(&m->img,&p->opt_hdr_32.size_of_image,sizeof(struct pe_meta_opt_hdr_img));
+			memcpy(&m->ldr,&p->opt_hdr_32.loader_flags,sizeof(struct pe_meta_opt_hdr_ldr));
+
+			if (m->ldr.rva_and_sizes > 0x10)
+				return PERK_BAD_IMAGE_TYPE;
+			else
+				memcpy(&m->dirs,&p->opt_hdr_32.export_tbl,sizeof(struct pe_meta_opt_hdr_dirs));
+
+			break;
+
+		case PE_MAGIC_PE32_PLUS:
+			memcpy(&m->vers,&p->opt_hdr_64.major_os_ver,sizeof(struct pe_meta_opt_hdr_vers));
+			memcpy(&m->align,&p->opt_hdr_64.section_align,sizeof(struct pe_meta_opt_hdr_align));
+			memcpy(&m->img,&p->opt_hdr_64.size_of_image,sizeof(struct pe_meta_opt_hdr_img));
+			memcpy(&m->ldr,&p->opt_hdr_64.loader_flags,sizeof(struct pe_meta_opt_hdr_ldr));
+
+			if (m->ldr.rva_and_sizes > 0x10)
+				return PERK_BAD_IMAGE_TYPE;
+			else
+				memcpy(&m->dirs,&p->opt_hdr_64.export_tbl,sizeof(struct pe_meta_opt_hdr_dirs));
+
+			break;
+
+		default:
+			return PERK_BAD_IMAGE_TYPE;
+	};
+
+	#else
+
+	astd = (struct pe_opt_hdr_std *)p;
+
+	switch (m->std.magic) {
+		case PE_MAGIC_PE32:
+			avers	= (struct pe_opt_hdr_std *)&p->opt_hdr_32.major_os_ver;
+			aalign	= (struct pe_opt_hdr_std *)&p->opt_hdr_32.section_align;
+			aimg	= (struct pe_opt_hdr_img *)&p->opt_hdr_32.size_of_image;
+			aldr	= (struct pe_opt_hdr_ldr *)&p->opt_hdr_32.loader_flags;
+			adirs	= (struct pe_opt_hdr_dirs *)&p->opt_hdr_32.export_tbl;
+			break;
+
+		case PE_MAGIC_PE32_PLUS:
+			avers	= (struct pe_opt_hdr_std *)&p->opt_hdr_64.major_os_ver;
+			aalign	= (struct pe_opt_hdr_std *)&p->opt_hdr_64.section_align;
+			aimg	= (struct pe_opt_hdr_img *)&p->opt_hdr_64.size_of_image;
+			aldr	= (struct pe_opt_hdr_ldr *)&p->opt_hdr_64.loader_flags;
+			adirs	= (struct pe_opt_hdr_dirs *)&p->opt_hdr_64.export_tbl;
+			break;
+
+		default:
+			return PERK_BAD_IMAGE_TYPE;
+	}
+
+	/* std */
+	m->std.major_linker_ver			= astd->major_linker_ver;
+	m->std.minor_linker_ver			= astd->minor_linker_ver;
+
+	m->std.size_of_code			= pe_read_long(astd->size_of_code);
+	m->std.size_of_initialized_data		= pe_read_long(astd->size_of_initialized_data);
+	m->std.size_of_uninitialized_data	= pe_read_long(astd->size_of_uninitialized_data);
+	m->std.entry_point			= pe_read_long(astd->entry_point);
+	m->std.base_of_code			= pe_read_long(astd->base_of_code);
+
+	/* vers */
+	m->vers.major_os_ver			= pe_read_short(avers->major_os_ver);
+	m->vers.minor_os_ver			= pe_read_short(avers->minor_os_ver);
+	m->vers.major_image_ver			= pe_read_short(avers->major_image_ver);
+	m->vers.minor_image_ver			= pe_read_short(avers->minor_image_ver);
+	m->vers.major_subsys_ver		= pe_read_short(avers->major_subsys_ver);
+	m->vers.minor_subsys_ver		= pe_read_short(avers->minor_subsys_ver);
+
+	m->vers.win32_ver			= pe_read_long(avers->win32_ver);
+
+	/* align */
+	m->align.section_align			= pe_read_long(aalign->section_align);
+	m->align.file_align			= pe_read_long(aalign->file_align);
+
+	/* img */
+	m->img.size_of_image			= pe_read_long(aimg->size_of_image);
+	m->img.size_of_headers			= pe_read_long(aimg->size_of_headers);
+	m->img.checksum				= pe_read_long(aimg->checksum);
+
+	m->img.subsystem			= pe_read_short(aimg->subsystem);
+	m->img.dll_characteristics		= pe_read_short(aimg->dll_characteristics);
+
+	/* ldr */
+	m->ldr.loader_flags			= pe_read_long(aldr->loader_flags);
+	m->ldr.rva_and_sizes			= pe_read_long(aldr->rva_and_sizes);
+
+	#endif
+
+	switch (m->std.magic) {
+		case PE_MAGIC_PE32:
+			m->mem.base_of_data		= pe_read_long(p->opt_hdr_32.base_of_data);
+			m->mem.image_base		= pe_read_long(p->opt_hdr_32.image_base);
+			m->mem.size_of_stack_reserve	= pe_read_long(p->opt_hdr_32.size_of_stack_reserve);
+			m->mem.size_of_stack_commit	= pe_read_long(p->opt_hdr_32.size_of_stack_commit);
+			m->mem.size_of_heap_reserve	= pe_read_long(p->opt_hdr_32.size_of_heap_reserve);
+			m->mem.size_of_heap_commit	= pe_read_long(p->opt_hdr_32.size_of_heap_commit);
+			break;
+
+		case PE_MAGIC_PE32_PLUS:
+			m->mem.base_of_data		= (uint64_t)-1;
+			m->mem.image_base		= pe_read_quad(p->opt_hdr_64.image_base);
+			m->mem.size_of_stack_reserve	= pe_read_quad(p->opt_hdr_64.size_of_stack_reserve);
+			m->mem.size_of_stack_commit	= pe_read_quad(p->opt_hdr_64.size_of_stack_commit);
+			m->mem.size_of_heap_reserve	= pe_read_quad(p->opt_hdr_64.size_of_heap_reserve);
+			m->mem.size_of_heap_commit	= pe_read_quad(p->opt_hdr_64.size_of_heap_commit);
+			break;
+	};
+
+	return 0;
+};
diff --git a/src/reader/pe_read_section_header.c b/src/reader/pe_read_section_header.c
new file mode 100644
index 0000000..1a37f63
--- /dev/null
+++ b/src/reader/pe_read_section_header.c
@@ -0,0 +1,37 @@
+#include <endian.h>
+#include <string.h>
+
+#include <perk/perk.h>
+#include "perk_impl.h"
+
+int pe_read_section_header(const struct pe_sec_hdr * p, struct pe_meta_sec_hdr * m)
+{
+	/* name: meta struct conveniently contains null termination */
+	memset(m,0,sizeof(m->name));
+	memcpy(m,p,sizeof(p->name));
+
+	/* todo: long name support */
+	m->long_name = 0;
+
+	#if (BYTE_ORDER == LITTLE_ENDIAN)
+
+	memcpy(&m->virtual_size,&p->virtual_size,sizeof(*p)-sizeof(p->name));
+
+	#else
+
+	m->virtual_size		= pe_read_long(p->virtual_size);
+	m->virtual_addr		= pe_read_long(p->virtual_addr);
+	m->size_of_raw_data	= pe_read_long(p->size_of_raw_data);
+	m->ptr_to_raw_data	= pe_read_long(p->ptr_to_raw_data);
+	m->ptr_to_relocs	= pe_read_long(p->ptr_to_relocs);
+	m->ptr_to_line_nums	= pe_read_long(p->ptr_to_linu_nums);
+
+	m->num_of_relocs	= pe_read_short(p->num_of_relocs);
+	m->num_of_line_nums	= pe_read_short(p->num_of_line_nums);
+
+	m->characteristics	= pe_read_long(p->characteristics);
+
+	#endif
+
+	return 0;
+};