use std::{env::args, fs::File, io::Read};
fn main() {
let args: Vec<String> = args().collect();
if args.len() != 2 {
panic!("usage: demo <elf-filepath>")
}
let mut f = File::open(&args[1]).expect("failed to open elf-file");
let mut buf = Vec::with_capacity(4096);
let _ = f.read_to_end(&mut buf).expect("failed to read elf-file");
let parser = pelf::parser::ElfParserConfig::new().build();
let elf = parser
.parse_raw_elf_file(&buf)
.expect("failed to parse elf-file");
match elf {
pelf::file::RawElfFile::Elf64(elf64) => {
dump_elf64_file(elf64);
}
_ => unimplemented!(),
}
}
fn dump_elf64_file(elf: pelf::file::RawElf64File) {
dump_elf64_header(&elf.header);
dump_elf64_program_header_table(&elf.program_headers);
dump_elf64_section_header_table(&elf.section_headers);
dump_elf64_sections(&elf.sections);
}
fn dump_elf64_header(header: &pelf::header::RawElf64Header) {
println!("ELF Header:");
println!(" Class: 0x{:x}", header.e_ident.e_class);
println!(" Data: 0x{:x}", header.e_ident.e_data);
println!(" File Version: 0x{:x}", header.e_ident.e_version);
println!(" Type: 0x{:x}", header.e_type);
println!(" Machine: 0x{:x}", header.e_machine);
println!(" Version: {}", header.e_version);
println!(" Entry: 0x{:x}", header.e_entry);
println!(" PHT Offset: 0x{:x}", header.e_phoff);
println!(" SHT Offset: 0x{:x}", header.e_shoff);
println!(" Flags: 0b{:b}", header.e_flags);
println!(" PHT Entry Size: 0x{:x}", header.e_phentsize);
println!(" PHT Entries: {}", header.e_phnum);
println!(" SHT Entry Size: 0x{:x}", header.e_shentsize);
println!(" SHT Entries: {}", header.e_shnum);
println!(
" Section Header String Table Index: {}",
header.e_shstrndx
);
}
fn dump_elf64_program_header_table(phdrs: &pelf::program_header::RawElf64ProgramHeaderTable) {
if phdrs.len() == 0 {
println!("there is no program header table");
return;
}
println!("Program Header Table:");
for (i, phdr) in phdrs.iter().enumerate() {
println!(" [{}]:", i);
println!(" Type: 0x{:x}", phdr.p_type);
println!(" Flags: 0b{:b}", phdr.p_flags);
println!(" Offset: 0x{:x}", phdr.p_offset);
println!(" Virtual Address: 0x{:x}", phdr.p_vaddr);
println!(" Physical Address: 0x{:x}", phdr.p_paddr);
println!(" Size in File: 0x{:x}", phdr.p_filesz);
println!(" Size in Memory: 0x{:x}", phdr.p_memsz);
println!(" Alignment: 0x{:x}", phdr.p_align);
}
}
fn dump_elf64_section_header_table(shdrs: &pelf::section::RawElf64SectionHeaderTable) {
if shdrs.len() == 0 {
println!("there is no section header table");
return;
}
println!("Section Header Table:");
for (i, shdr) in shdrs.iter().enumerate() {
println!(" [{}]:", i);
println!(" Name Index: 0x{:x}", shdr.sh_name);
println!(" Type: 0b{:b}", shdr.sh_type);
println!(" Flags: 0b{:b}", shdr.sh_flags);
println!(" Address: 0x{:x}", shdr.sh_addr);
println!(" Offset: 0x{:x}", shdr.sh_offset);
println!(" Size: 0x{:x}", shdr.sh_size);
println!(" Link: 0x{:x}", shdr.sh_link);
println!(" Info: 0x{:x}", shdr.sh_info);
println!(" Address Alignment: 0x{:x}", shdr.sh_addralign);
println!(" Entry Size: 0x{:x}", shdr.sh_entsize);
}
}
fn dump_elf64_sections(sections: &pelf::section::RawElf64Sections) {
if sections.len() == 0 {
println!("there is no sections");
return;
}
println!("Sections:");
for (i, section) in sections.iter().enumerate() {
println!(" Sections[{}] Data Length: {}", i, section.len());
}
}