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-rw-r--r--src/headers/pe_get_image_coff_hdr_addr.c30
-rw-r--r--src/headers/pe_get_image_data_dirs_addr.c33
-rw-r--r--src/headers/pe_get_image_dos_hdr_addr.c24
-rw-r--r--src/headers/pe_get_image_entry_point_addr.c39
-rw-r--r--src/headers/pe_get_image_opt_hdr_addr.c20
-rw-r--r--src/headers/pe_get_image_special_hdr_addr.c49
6 files changed, 195 insertions, 0 deletions
diff --git a/src/headers/pe_get_image_coff_hdr_addr.c b/src/headers/pe_get_image_coff_hdr_addr.c
new file mode 100644
index 0000000..d2ff03a
--- /dev/null
+++ b/src/headers/pe_get_image_coff_hdr_addr.c
@@ -0,0 +1,30 @@
+/*****************************************************************************/
+/* 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_consts.h>
+#include <pemagine/pe_structs.h>
+#include <pemagine/pemagine.h>
+
+pe_api
+struct pe_coff_file_hdr * pe_get_image_coff_hdr_addr(const void * base)
+{
+ struct pe_image_dos_hdr * dos;
+ struct pe_coff_file_hdr * coff;
+ uint32_t * offset;
+
+ if (!(dos = pe_get_image_dos_hdr_addr(base)))
+ return 0;
+
+ offset = (uint32_t *)(dos->dos_lfanew);
+ coff = (struct pe_coff_file_hdr *)pe_va_from_rva(base,*offset);
+
+ if ((coff->signature[0] == 'P') && (coff->signature[1] == 'E')
+ && (coff->signature[2] == '\0') && (coff->signature[3] == '\0'))
+ return coff;
+ else
+ return 0;
+}
diff --git a/src/headers/pe_get_image_data_dirs_addr.c b/src/headers/pe_get_image_data_dirs_addr.c
new file mode 100644
index 0000000..d0167c0
--- /dev/null
+++ b/src/headers/pe_get_image_data_dirs_addr.c
@@ -0,0 +1,33 @@
+/*****************************************************************************/
+/* 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_consts.h>
+#include <pemagine/pe_structs.h>
+#include <pemagine/pemagine.h>
+
+pe_api
+struct pe_data_dirs * pe_get_image_data_dirs_addr(const void * base)
+{
+ uint16_t * magic;
+ union pe_opt_hdr * hdr;
+
+ if (!(hdr = pe_get_image_opt_hdr_addr(base)))
+ return 0;
+
+ magic = (uint16_t *)hdr;
+
+ switch (*magic) {
+ case PE_MAGIC_PE32:
+ return (struct pe_data_dirs *)hdr->opt_hdr_32.rva_and_sizes;
+
+ case PE_MAGIC_PE32_PLUS:
+ return (struct pe_data_dirs *)hdr->opt_hdr_64.rva_and_sizes;
+
+ default:
+ return 0;
+ }
+}
diff --git a/src/headers/pe_get_image_dos_hdr_addr.c b/src/headers/pe_get_image_dos_hdr_addr.c
new file mode 100644
index 0000000..279d04e
--- /dev/null
+++ b/src/headers/pe_get_image_dos_hdr_addr.c
@@ -0,0 +1,24 @@
+/*****************************************************************************/
+/* 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_consts.h>
+#include <pemagine/pe_structs.h>
+#include <pemagine/pemagine.h>
+
+pe_api
+struct pe_image_dos_hdr * pe_get_image_dos_hdr_addr(const void * base)
+{
+ struct pe_image_dos_hdr * dos;
+
+ dos = (struct pe_image_dos_hdr *)base;
+
+ if ((dos->dos_magic[0] == 'M') && (dos->dos_magic[1] == 'Z'))
+ return dos;
+ else
+ return 0;
+}
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);
+}
diff --git a/src/headers/pe_get_image_opt_hdr_addr.c b/src/headers/pe_get_image_opt_hdr_addr.c
new file mode 100644
index 0000000..dcb8c48
--- /dev/null
+++ b/src/headers/pe_get_image_opt_hdr_addr.c
@@ -0,0 +1,20 @@
+/*****************************************************************************/
+/* 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/pemagine.h>
+
+pe_api
+union pe_opt_hdr * pe_get_image_opt_hdr_addr(const void * base)
+{
+ struct pe_coff_file_hdr * coff;
+
+ if (!(coff = pe_get_image_coff_hdr_addr(base)))
+ return 0;
+ else
+ return (union pe_opt_hdr *)pe_va_from_rva(coff, sizeof(*coff));
+}
diff --git a/src/headers/pe_get_image_special_hdr_addr.c b/src/headers/pe_get_image_special_hdr_addr.c
new file mode 100644
index 0000000..276ec9f
--- /dev/null
+++ b/src/headers/pe_get_image_special_hdr_addr.c
@@ -0,0 +1,49 @@
+/*****************************************************************************/
+/* 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_consts.h>
+#include <pemagine/pe_structs.h>
+#include <pemagine/pemagine.h>
+#include "pe_impl.h"
+
+pe_api
+void * pe_get_image_special_hdr_addr(const void * base, uint32_t ordinal, uint32_t * sec_size)
+{
+ struct pe_data_dirs * dirs;
+ struct pe_block * dir;
+ uint32_t * count;
+
+ if (!(dirs = pe_get_image_data_dirs_addr(base)))
+ return 0;
+
+ count = (uint32_t *)dirs->rva_and_sizes;
+
+ if (*count < (ordinal+1))
+ return 0;
+
+ dir = (struct pe_block *)dirs->export_tbl;
+ dir += ordinal;
+
+ if (sec_size)
+ *sec_size = dir->size;
+
+ return dir->rva
+ ? pe_va_from_rva(base,dir->rva)
+ : 0;
+}
+
+pe_api
+struct pe_export_hdr * pe_get_image_export_hdr_addr(const void * base, uint32_t * sec_size)
+{
+ return (struct pe_export_hdr *)pe_get_image_special_hdr_addr(base,PE_IMAGE_DATA_DIR_ORDINAL_EXPORT,sec_size);
+}
+
+pe_api
+struct pe_import_hdr * pe_get_image_import_dir_addr(const void * base, uint32_t * sec_size)
+{
+ return (struct pe_import_hdr *)pe_get_image_special_hdr_addr(base,PE_IMAGE_DATA_DIR_ORDINAL_IMPORT,sec_size);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 06:54:57 +0000