//  [c]
static bool init_ehdr(ELFOBJ *bin) {
	ut8 e_ident[EI_NIDENT];
	ut8 ehdr[sizeof (Elf_(Ehdr))] = {0};
	int i, len;
	if (r_buf_read_at (bin->b, 0, e_ident, EI_NIDENT) == -1) {
		R_LOG_DEBUG ("read (magic)");
		return false;
	}
	sdb_set (bin->kv, "elf_type.cparse", "enum elf_type { ET_NONE=0, ET_REL=1,"
			" ET_EXEC=2, ET_DYN=3, ET_CORE=4, ET_LOOS=0xfe00, ET_HIOS=0xfeff,"
			" ET_LOPROC=0xff00, ET_HIPROC=0xffff };", 0);
	sdb_set (bin->kv, "elf_machine.cparse", "enum elf_machine {EM_NONE=0, EM_M32=1,"
			" EM_SPARC=2, EM_386=3, EM_68K=4, EM_88K=5, EM_IAMCU=6, EM_860=7, EM_MIPS=8,"
			" EM_S370=9, EM_MIPS_RS3_LE=10, EM_RS6000=11, EM_PARISC=15, EM_nCUBE=16,"
			" EM_VPP500=17, EM_SPARC32PLUS=18, EM_960=19, EM_PPC=20, EM_PPC64=21, EM_S390=22,"
			" EM_SPU=23, EM_V800=36, EM_FR20=37, EM_RH32=38, EM_RCE=39, EM_ARM=40,"
			" EM_ALPHA=41, EM_SH=42, EM_SPARCV9=43, EM_TRICORE=44, EM_ARC=45, EM_H8_300=46,"
			" EM_H8_300H=47, EM_H8S=48, EM_H8_500=49, EM_IA_64=50, EM_MIPS_X=51,"
			" EM_COLDFIRE=52, EM_68HC12=53, EM_MMA=54, EM_PCP=55, EM_NCPU=56, EM_NDR1=57,"
			" EM_STARCORE=58, EM_ME16=59, EM_ST100=60, EM_TINYJ=61, EM_X86_64=62, EM_PDSP=63,"
			" EM_PDP10=64, EM_PDP11=65, EM_FX66=66, EM_ST9PLUS=67, EM_ST7=68, EM_68HC16=69,"
			" EM_68HC11=70, EM_68HC08=71, EM_68HC05=72, EM_SVX=73, EM_ST19=74, EM_VAX=75,"
			" EM_CRIS=76, EM_JAVELIN=77, EM_FIREPATH=78, EM_ZSP=79, EM_MMIX=80, EM_HUANY=81,"
			" EM_PRISM=82, EM_AVR=83, EM_FR30=84, EM_D10V=85, EM_D30V=86, EM_V850=87,"
			" EM_M32R=88, EM_MN10300=89, EM_MN10200=90, EM_PJ=91, EM_OPENRISC=92,"
			" EM_ARC_COMPACT=93, EM_XTENSA=94, EM_VIDEOCORE=95, EM_TMM_GPP=96, EM_NS32K=97,"
			" EM_TPC=98, EM_SNP1K=99, EM_ST200=100, EM_IP2K=101, EM_MAX=102, EM_CR=103,"
			" EM_F2MC16=104, EM_MSP430=105, EM_BLACKFIN=106, EM_SE_C33=107, EM_SEP=108,"
			" EM_ARCA=109, EM_UNICORE=110, EM_EXCESS=111, EM_DXP=112, EM_ALTERA_NIOS2=113,"
			" EM_CRX=114, EM_XGATE=115, EM_C166=116, EM_M16C=117, EM_DSPIC30F=118, EM_CE=119,"
			" EM_M32C=120, EM_TSK3000=131, EM_RS08=132, EM_SHARC=133, EM_ECOG2=134,"
			" EM_SCORE7=135, EM_DSP24=136, EM_VIDEOCORE3=137, EM_LATTICEMICO32=138,"
			" EM_SE_C17=139, EM_TI_C6000=140, EM_TI_C2000=141, EM_TI_C5500=142,"
			" EM_TI_ARP32=143, EM_TI_PRU=144,"
			" EM_MMDSP_PLUS=160, EM_CYPRESS_M8C=161, EM_R32C=162, EM_TRIMEDIA=163,"
			" EM_QDSP6=164, EM_8051=165, EM_STXP7X=166, EM_NDS32=167,"
			" EM_ECOG1X=168, EM_MAXQ30=169, EM_XIMO16=170, EM_MANIK=171, EM_CRAYNV2=172,"
			" EM_RX=173, EM_METAG=174, EM_MCST_ELBRUS=175, EM_ECOG16=176, EM_CR16=177,"
			" EM_ETPU=178, EM_SLE9X=179, EM_L10M=180, EM_K10M=181, EM_AARCH64=183,"
			" EM_AVR32=185, EM_STM8=186, EM_TILE64=187, EM_TILEPRO=188, EM_CUDA=190,"
			" EM_TILEGX=191, EM_CLOUDSHIELD=192, EM_COREA_1ST=193, EM_COREA_2ND=194,"
			" EM_ARC_COMPACT2=195, EM_OPEN8=196, EM_RL78=197, EM_VIDEOCORE5=198,"
			" EM_78KOR=199, EM_56800EX=200, EM_BA1=201, EM_BA2=202, EM_XCORE=203,"
			" EM_MCHP_PIC=204, EM_INTEL205=205, EM_INTEL206=206, EM_INTEL207=207,"
			" EM_INTEL208=208, EM_INTEL209=209, EM_KM32=210, EM_KMX32=211, EM_KMX16=212,"
			" EM_KMX8=213, EM_KVARC=214, EM_CDP=215, EM_COGE=216, EM_COOL=217, EM_NORC=218,"
			" EM_CSR_KALIMBA=219, EM_AMDGPU=224, EM_RISCV=243, EM_LANAI=244, EM_BPF=247,"
			" EM_CSKY=252, EM_KVX=256, EM_LOONGARCH=258}", 0);
	sdb_set (bin->kv, "elf_class.cparse", "enum elf_class {ELFCLASSNONE=0, ELFCLASS32=1, ELFCLASS64=2};", 0);
	sdb_set (bin->kv, "elf_data.cparse", "enum elf_data {ELFDATANONE=0, ELFDATA2LSB=1, ELFDATA2MSB=2};", 0);
	sdb_set (bin->kv, "elf_hdr_version.cparse", "enum elf_hdr_version {EV_NONE=0, EV_CURRENT=1};", 0);
	sdb_set (bin->kv, "elf_obj_version.cparse", "enum elf_obj_version {EV_NONE=0, EV_CURRENT=1};", 0);
	sdb_num_set (bin->kv, "elf_header.offset", 0, 0);
	sdb_num_set (bin->kv, "elf_header.size", sizeof (Elf_(Ehdr)), 0);
	sdb_set (bin->kv, "elf_ident.format", "[4]z[1]E[1]E[1]E.::"
			" magic (elf_class)class (elf_data)data (elf_hdr_version)version", 0);
#if R_BIN_ELF64
	sdb_set (bin->kv, "elf_header.format", "?[2]E[2]E[4]EqqqxN2N2N2N2N2N2"
			" (elf_ident)ident (elf_type)type (elf_machine)machine (elf_obj_version)version"
			" entry phoff shoff flags ehsize phentsize phnum shentsize shnum shstrndx", 0);
#else
	sdb_set (bin->kv, "elf_header.format", "?[2]E[2]E[4]ExxxxN2N2N2N2N2N2"
			" (elf_ident)ident (elf_type)type (elf_machine)machine (elf_obj_version)version"
			" entry phoff shoff flags ehsize phentsize phnum shentsize shnum shstrndx", 0);
#endif
	bin->endian = (e_ident[EI_DATA] == ELFDATA2MSB)? 1: 0;
	memset (&bin->ehdr, 0, sizeof (Elf_(Ehdr)));
	len = r_buf_read_at (bin->b, 0, ehdr, sizeof (ehdr));
	if (len < 32) { // tinyelf != sizeof (Elf_(Ehdr))) {
		R_LOG_DEBUG ("read (ehdr)");
		return false;
	}
	// XXX no need to check twice
	memcpy (&bin->ehdr.e_ident, ehdr, 16);
	if (!__is_valid_ident (bin)) {
		return false;
	}
	i = 16;
	// TODO: use r_read or r_buf_read_ apis instead
	bin->ehdr.e_type = READ16 (ehdr, i);
	bin->ehdr.e_machine = READ16 (ehdr, i);
	bin->ehdr.e_version = READ32 (ehdr, i);
#if R_BIN_ELF64
	bin->ehdr.e_entry = READ64 (ehdr, i);
	bin->ehdr.e_phoff = READ64 (ehdr, i);
	bin->ehdr.e_shoff = READ64 (ehdr, i);
#else
	bin->ehdr.e_entry = READ32 (ehdr, i);
	bin->ehdr.e_phoff = READ32 (ehdr, i);
	bin->ehdr.e_shoff = READ32 (ehdr, i);
#endif
	bin->ehdr.e_flags = READ32 (ehdr, i);
	bin->ehdr.e_ehsize = READ16 (ehdr, i);
	bin->ehdr.e_phentsize = READ16 (ehdr, i);
	bin->ehdr.e_phnum = READ16 (ehdr, i);
	bin->ehdr.e_shentsize = READ16 (ehdr, i);
	bin->ehdr.e_shnum = READ16 (ehdr, i);
	bin->ehdr.e_shstrndx = READ16 (ehdr, i);
	return true;
	// [Outdated] Usage example:
	// > td `k bin/cur/info/elf_type.cparse`; td `k bin/cur/info/elf_machine.cparse`
	// > pf `k bin/cur/info/elf_header.format` @ `k bin/cur/info/elf_header.offset`
}