:(

ft_strdup.s

@@ -12,11 +12,10 @@ ft_strdup:
     call malloc wrt ..plt
     test rax, rax
     je .end
-    pop r8
+    pop rsi
     mov rdi, rax   ; move the result of malloc into rdi (override strlen result)
-    mov rsi, r8    ; move the argument of strdup in rsi
     call ft_strcpy
-    ret
+    ret 
 
 .end:
     pop r8

ft_write.s

@@ -2,12 +2,28 @@ global ft_write
 extern __errno_location
 
 ft_write:
+	cmp rdi, 0
+	jl .err_fd
+	test rsi, rsi
+	je .err_buffer
 	mov eax, 0x1 ; put the syscall number of write
 	syscall
 	test rax, rax
 	js .error
 	ret
 
+.err_fd:
+	call __errno_location wrt ..plt
+	mov byte [rax], 22
+	mov rax, -1
+	ret
+
+.err_buffer:
+	call __errno_location wrt ..plt
+	mov byte [rax], 22
+	mov rax, -1
+	ret
+
 .error:
 	mov rdx, rax
 	call __errno_location wrt ..plt