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authormidipix <writeonce@midipix.org>2016-11-13 23:46:38 -0500
committermidipix <writeonce@midipix.org>2016-11-13 23:56:16 -0500
commit62b9db8b87aef70ba5d76542ebcf90ae872ea940 (patch)
treecb103c0f470835aa6ee5ebb7e0aaadc689a4f1ef /src/logic
parent8de972a241a38696697a0a0aedd2a3c44c059335 (diff)
downloadperk-62b9db8b87aef70ba5d76542ebcf90ae872ea940.tar.bz2
perk-62b9db8b87aef70ba5d76542ebcf90ae872ea940.tar.xz
logic: added pe_get_roffset_from_rva(), pe_get_rva_from_roffset().
Diffstat (limited to 'src/logic')
-rw-r--r--src/logic/pe_get_image_meta.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/logic/pe_get_image_meta.c b/src/logic/pe_get_image_meta.c
index ee2b632..5f31a9a 100644
--- a/src/logic/pe_get_image_meta.c
+++ b/src/logic/pe_get_image_meta.c
@@ -59,6 +59,49 @@ int pe_get_block_section_index(const struct pe_image_meta * m, const struct pe_b
return -1;
}
+int pe_get_roffset_from_rva(const struct pe_image_meta * m, uint32_t rva, uint32_t * roffset)
+{
+ int i;
+ uint32_t low,high;
+
+ for (i=0; i<m->coff.num_of_sections; i++) {
+ low = m->sectbl[i].virtual_addr;
+ high = low + m->sectbl[i].virtual_size;
+
+ if ((rva >= low) && (rva < high)) {
+ *roffset = (rva - low) + m->sectbl[i].ptr_to_raw_data;
+ return 0;
+ }
+ }
+
+ return -1;
+}
+
+int pe_get_rva_from_roffset(const struct pe_image_meta * m, uint32_t roffset, uint32_t * rva)
+{
+ int i;
+ uint32_t low,high,ref;
+
+ for (i=0, ref=-1; i<m->coff.num_of_sections; i++) {
+ low = m->sectbl[i].ptr_to_raw_data;
+ high = low + m->sectbl[i].virtual_size;
+
+ if ((roffset >= low) && (roffset < high)) {
+ *rva = (roffset - low) + m->sectbl[i].virtual_addr;
+ return 0;
+ } else if (ref > low) {
+ ref = low;
+ }
+ }
+
+ if (roffset < ref) {
+ *rva = roffset;
+ return 0;
+ }
+
+ return -1;
+}
+
int pe_get_expsym_by_name(
const struct pe_image_meta * m,
const char * name,