diff options
Diffstat (limited to 'src/logic/pe_get_image_meta.c')
| -rw-r--r-- | src/logic/pe_get_image_meta.c | 43 |
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, |