examples(pe): add a section adder

examples/pe_add_section.rs

@@ -0,0 +1,26 @@
+use std::borrow::Cow;
+
+use goblin::pe::{PE, writer::PEWriter, section_table::{SectionTable, Section, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ}};
+use scroll::Pwrite;
+
+fn main() {
+    stderrlog::new().verbosity(1).init().unwrap();
+    let args: Vec<String> = std::env::args().collect();
+
+    let file = std::fs::read(&args[1]).unwrap();
+    let file = &file[..];
+    let pe = PE::parse(file).unwrap();
+    println!("{}", file.len());
+    let mut pe_writer = PEWriter::new(pe).expect("Failed to create a wrapper");
+
+    let section_name: [u8; 8] = [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0];
+    pe_writer.insert_section(
+        Section::new(
+            &section_name,
+            Some(Cow::Borrowed(&[0x0])),
+            IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ
+        ).expect("Failed to create a section")
+    ).unwrap();
+
+    let new_pe = pe_writer.write_into().unwrap();
+}