fix getenv

src/env.rs

@@ -1,8 +1,4 @@
-use core::{
-    ffi::{c_char, CStr},
-    iter,
-    ptr::NonNull,
-};
+use core::{ffi::CStr, ptr::NonNull};
 
 use crate::{println, utils::SharedThinCstr};
 
@@ -67,6 +63,7 @@ pub fn getenv(name: SharedThinCstr) -> Option<SharedThinCstr> {
 fn getenv_inner(mut envp: EnvP, name: SharedThinCstr) -> Option<SharedThinCstr> {
     let mut eq_idx = 0;
     envp.find(|env| {
+        println!("trying {env:?}");
         // Find ENV
         // EN=x
         // ENV=x   <- this one
@@ -84,6 +81,9 @@ fn getenv_inner(mut envp: EnvP, name: SharedThinCstr) -> Option<SharedThinCstr>
             if name.is_none() || env == Some(b'=') {
                 return false;
             }
+            if name != env {
+                return false;
+            }
             eq_idx += 1;
         }
     })
@@ -154,4 +154,11 @@ mod tests {
             assert_eq!(super::getenv_inner(envp, cstr("LONG_NAME\0")), None);
         })
     }
+
+    #[test]
+    fn getenv_same_length() {
+        with_envp(&["OWO=a", "UWU=b"], |envp| {
+            assert_eq!(super::getenv_inner(envp, cstr("UWU\0")), Some(cstr("b\0")));
+        })
+    }
 }

src/io/mod.rs

@@ -12,7 +12,7 @@ impl core::fmt::Write for Printer {
         unsafe {
             while s.len() > 0 {
                 let result =
-                    syscall::syscall!(syscall::SYS_WRITE, STDIN, s.as_ptr(), s.len()) as i64;
+                    syscall::syscall!(syscall::SYS_WRITE, STDOUT, s.as_ptr(), s.len()) as i64;
                 if result < 0 {
                     return Err(core::fmt::Error);
                 }

src/start.rs

@@ -13,7 +13,7 @@ pub(crate) unsafe extern "C" fn start(argc: u64, argv: *const *const c_char, rsp
         fn main(argc: c_int, argv: *const *const c_char) -> c_int;
     }
 
-    // crate::env::debug_env();
+    crate::env::debug_env();
 
     let result = main(argc as i32, argv);
 
@@ -23,6 +23,7 @@ pub(crate) unsafe extern "C" fn start(argc: u64, argv: *const *const c_char, rsp
 pub fn exit(code: u64) -> ! {
     unsafe {
         crate::sys::syscall::syscall!(crate::sys::syscall::SYS_EXIT, code);
+        crate::sys::helpers::trap!();
         core::hint::unreachable_unchecked()
     }
 }