nxo.h File Reference

Go to the source code of this file.

Classes
struct	NXOStart
struct	MODHeader
struct	MODObject
struct	MODMeta
struct	RzBinNXOObj

Functions
void	parseMod (RzBuffer *buf, RzBinNXOObj *bin, ut32 mod0, ut64 baddr)
const char *	fileType (const ut8 *buf)

Function Documentation

fileType()

const char* fileType

(

const ut8 *

buf

)

Definition at line 24 of file nxo.c.

                                     {
    if (!memcmp(buf, "NRO0", 4)) {
        return "nro0";
    }
    if (!memcmp(buf, "NRR0", 4)) {
        return "nrr0";
    }
    if (!memcmp(buf, "MOD0", 4)) {
        return "mod0";
    }
    if (!memcmp(buf, "NSO0", 4)) {
        return "nso0";
    }
    return NULL;
}

References NULL.

Referenced by check_buffer(), and info().

parseMod()

void parseMod	(	RzBuffer *	buf,
		RzBinNXOObj *	bin,
		ut32	mod0,
		ut64	baddr
	)

Definition at line 130 of file nxo.c.

                                                                      {
    ut32 ptr;
    if (!rz_buf_read_le32_at(buf, mod0, &ptr)) {
        return;
    }
 
    RZ_LOG_INFO("magic %x at 0x%x\n", ptr, mod0);
    if (ptr == 0x30444f4d) { // MOD0
        RZ_LOG_INFO("is mode0\n");
        MODHeader mh = { 0 };
        if (!rz_buf_read_le32_at(buf, mod0, &mh.magic) ||
            !rz_buf_read_le32_at(buf, mod0 + 4, &mh.dynamic) ||
            !rz_buf_read_le32_at(buf, mod0 + 8, &mh.bss_start) ||
            !rz_buf_read_le32_at(buf, mod0 + 12, &mh.bss_end) ||
            !rz_buf_read_le32_at(buf, mod0 + 16, &mh.unwind_start) ||
            !rz_buf_read_le32_at(buf, mod0 + 20, &mh.unwind_end) ||
            !rz_buf_read_le32_at(buf, mod0 + 24, &mh.mod_object)) {
            return;
        }
        mh.mod_object += mod0;
        RZ_LOG_INFO("magic 0x%x\n", mh.magic);
        RZ_LOG_INFO("dynamic 0x%x\n", mh.dynamic);
        RZ_LOG_INFO("bss 0x%x 0x%x\n", mh.bss_start, mh.bss_end);
        RZ_LOG_INFO("unwind 0x%x 0x%x\n", mh.unwind_start, mh.unwind_end);
        RZ_LOG_INFO("-------------\n");
        RZ_LOG_INFO("mod 0x%x\n", mh.mod_object);
#define MO_(x) rz_buf_read_le64_at(buf, mh.mod_object + rz_offsetof(MODObject, x), &mo.x)
        MODObject mo = { 0 };
        if (!MO_(next) || !MO_(prev) || !MO_(relplt) || !MO_(reldyn) ||
            !MO_(base) || !MO_(dynamic) || !MO_(is_rela) ||
            !MO_(relplt_size) || !MO_(init) || !MO_(fini) ||
            !MO_(bucket) || !MO_(chain) || !MO_(strtab) ||
            !MO_(symtab) || !MO_(strtab_size)) {
            return;
        };
        RZ_LOG_INFO("next 0x%" PFMT64x "\n", mo.next);
        RZ_LOG_INFO("prev 0x%" PFMT64x "\n", mo.prev);
        RZ_LOG_INFO("base 0x%" PFMT64x "\n", mo.base);
        RZ_LOG_INFO("init 0x%" PFMT64x "\n", mo.init);
        RZ_LOG_INFO("fini 0x%" PFMT64x "\n", mo.fini);
        RZ_LOG_INFO("relplt 0x%" PFMT64x "\n", mo.relplt - mo.base);
        RZ_LOG_INFO("symtab = 0x%" PFMT64x "\n", mo.symtab - mo.base);
        RZ_LOG_INFO("strtab = 0x%" PFMT64x "\n", mo.strtab - mo.base);
        RZ_LOG_INFO("strtabsz = 0x%" PFMT64x "\n", mo.strtab_size);
        // ut32 modo = mh.mod_object;
        ut64 strtab = mo.strtab - mo.base;
        ut64 symtab = mo.symtab - mo.base;
        walkSymbols(buf, bin, symtab, strtab, mo.strtab_size, mo.relplt - mo.base, baddr);
    }
}

References baddr(), MODObject::base, MODHeader::bss_end, MODHeader::bss_start, MODHeader::dynamic, dynamic(), fini(), MODObject::fini, MODObject::init, init, MODHeader::magic, MO_, MODHeader::mod_object, MODObject::next, PFMT64x, MODObject::prev, MODObject::relplt, rz_buf_read_le32_at, RZ_LOG_INFO, MODObject::strtab, MODObject::strtab_size, MODObject::symtab, MODHeader::unwind_end, MODHeader::unwind_start, ut64(), and walkSymbols().

Referenced by load_buffer().