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author | midipix <writeonce@midipix.org> | 2018-11-17 23:43:18 -0500 |
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committer | midipix <writeonce@midipix.org> | 2018-11-20 20:25:17 -0500 |
commit | 4ae524cd27c6aa6f95dd62a7e6eb4a02acdfd4d6 (patch) | |
tree | db04d7c14a172ff253e802674f7cee7f2a0342fb /src | |
parent | 2bae5fde60d0cad9203b554f36d6724dbc255c30 (diff) | |
download | perk-4ae524cd27c6aa6f95dd62a7e6eb4a02acdfd4d6.tar.bz2 perk-4ae524cd27c6aa6f95dd62a7e6eb4a02acdfd4d6.tar.xz |
pe_get_image_meta(), pe_read_import_lookup(): follow correct lookup semantics.
Diffstat (limited to 'src')
-rw-r--r-- | src/logic/pe_get_image_meta.c | 21 | ||||
-rw-r--r-- | src/reader/pe_read_import_header.c | 19 |
2 files changed, 20 insertions, 20 deletions
diff --git a/src/logic/pe_get_image_meta.c b/src/logic/pe_get_image_meta.c index 7ec2b0b..f554870 100644 --- a/src/logic/pe_get_image_meta.c +++ b/src/logic/pe_get_image_meta.c @@ -443,14 +443,8 @@ int pe_get_image_meta( - m->h_idata->sh_virtual_addr); /* items */ - uint32_t * hint; - m->m_idata[i].ih_count = 0; - if (m->m_idata[i].ih_import_lookup_tbl_rva) { - pitem = m->m_idata[i].ih_aitems; - hint = (uint32_t *)pitem->ii_hint_name_tbl_rva; - - for (; *hint; hint=(uint32_t *)((++pitem)->ii_hint_name_tbl_rva)) + for (pitem = m->m_idata[i].ih_aitems; pe_read_long(pitem->ii_import_lookup_entry_32); pitem++) m->m_idata[i].ih_count++; if (!(m->m_idata[i].ih_items = calloc(m->m_idata[i].ih_count,sizeof(*(m->m_idata[i].ih_items))))) @@ -466,21 +460,12 @@ int pe_get_image_meta( return pe_free_image_meta_impl( m,PERK_CUSTOM_ERROR(dctx,ret)); - switch (m->m_opt.oh_std.coh_magic) { - case PE_MAGIC_PE32: - m->m_idata[i].ih_items[j].ii_flag = m->m_idata[i].ih_items[j].u.ii_import_lookup_entry_32 >> 31; - break; - - case PE_MAGIC_PE32_PLUS: - m->m_idata[i].ih_items[j].ii_flag = (m->m_idata[i].ih_items[j].u.ii_import_lookup_entry_64 >> 63); - break; - } - if (!m->m_idata[i].ih_items[j].ii_flag) { struct pe_raw_hint_name_entry * pentry = (struct pe_raw_hint_name_entry *)(base + m->h_idata->sh_ptr_to_raw_data - + m->m_idata[i].ih_items[j].u.ii_hint_name_tbl_rva - m->h_idata->sh_virtual_addr); + + m->m_idata[i].ih_items[j].ii_hint_name_tbl_rva - m->h_idata->sh_virtual_addr); + m->m_idata[i].ih_items[j].ii_hint = pe_read_short(pentry->ii_hint); m->m_idata[i].ih_items[j].ii_name = (char *)pentry->ii_name; } } diff --git a/src/reader/pe_read_import_header.c b/src/reader/pe_read_import_header.c index 9450ca4..cc212af 100644 --- a/src/reader/pe_read_import_header.c +++ b/src/reader/pe_read_import_header.c @@ -32,13 +32,28 @@ int pe_read_import_lookup( switch (magic) { case PE_MAGIC_PE32: m->u.ii_import_lookup_entry_64 = pe_read_long(p->ii_import_lookup_entry_32); - return 0; + m->ii_flag = (uint32_t)m->u.ii_import_lookup_entry_64 >> 31; + break; case PE_MAGIC_PE32_PLUS: m->u.ii_import_lookup_entry_64 = pe_read_quad(p->ii_import_lookup_entry_64); - return 0; + m->ii_flag = m->u.ii_import_lookup_entry_64 >> 63; + break; default: return PERK_ERR_BAD_IMAGE_TYPE; } + + if (m->ii_flag) { + m->ii_ordinal = m->u.ii_import_lookup_entry_32 & 0x7fff; + m->ii_hint_name_tbl_rva = 0; + } else { + m->ii_ordinal = 0; + m->ii_hint_name_tbl_rva = m->u.ii_import_lookup_entry_32 & 0x7fffffff; + } + + m->ii_hint = 0; + m->ii_name = 0; + + return 0; } |