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| author | midipix <writeonce@midipix.org> | 2016-05-06 09:52:08 -0400 |
|---|---|---|
| committer | midipix <writeonce@midipix.org> | 2016-11-10 23:35:44 -0500 |
| commit | 2d6c77772c5d23f8d005dbb7d9749b9a84d6606a (patch) | |
| tree | 254b686ab17249de101c17f250b967ae54144334 /src/reader | |
| parent | ff23632ddaf5f3acc893f110cbd4eabb72b75de0 (diff) | |
| download | perk-2d6c77772c5d23f8d005dbb7d9749b9a84d6606a.tar.bz2 perk-2d6c77772c5d23f8d005dbb7d9749b9a84d6606a.tar.xz | |
pe_read_optional_header(): integrate runtime little endian test.
Diffstat (limited to 'src/reader')
| -rw-r--r-- | src/reader/pe_read_optional_header.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/src/reader/pe_read_optional_header.c b/src/reader/pe_read_optional_header.c index 3d0d835..48e7fce 100644 --- a/src/reader/pe_read_optional_header.c +++ b/src/reader/pe_read_optional_header.c @@ -4,19 +4,17 @@ /* Released under GPLv2 and GPLv3; see COPYING.PERK. */ /***************************************************************/ -#include <endian.h> #include <string.h> #include <perk/perk.h> +#include "perk_endian_impl.h" #include "perk_reader_impl.h" -int pe_read_optional_header(const union pe_opt_hdr * p, struct pe_meta_opt_hdr * m) +static int pe_read_optional_header_little_endian(const union pe_opt_hdr * p, struct pe_meta_opt_hdr * m) { 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) { @@ -50,8 +48,11 @@ int pe_read_optional_header(const union pe_opt_hdr * p, struct pe_meta_opt_hdr * return PERK_BAD_IMAGE_TYPE; } - #else + return 0; +} +static int pe_read_optional_header_big_endian(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; @@ -60,6 +61,9 @@ int pe_read_optional_header(const union pe_opt_hdr * p, struct pe_meta_opt_hdr * 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)); + astd = (struct pe_opt_hdr_std *)p; switch (m->std.magic) { @@ -119,7 +123,20 @@ int pe_read_optional_header(const union pe_opt_hdr * p, struct pe_meta_opt_hdr * m->ldr.loader_flags = pe_read_long(aldr->loader_flags); m->ldr.rva_and_sizes = pe_read_long(aldr->rva_and_sizes); - #endif + return 0; +} + +int pe_read_optional_header(const union pe_opt_hdr * p, struct pe_meta_opt_hdr * m) +{ + int ret; + + if (PERK_LITTLE_ENDIAN) { + if ((ret = pe_read_optional_header_little_endian(p,m))) + return ret; + } else { + if ((ret = pe_read_optional_header_big_endian(p,m))) + return ret; + } switch (m->std.magic) { case PE_MAGIC_PE32: |