Bugfixes

syscall_open.c
line 16: Added file_name to store input
line 18: Changed to use file_name
line 21: Added to put a pointer to the file inside file_descriptor

userprog/syscall_open.c

@@ -13,10 +13,11 @@
 void syscall_open(struct intr_frame *f) {
 	struct file_map *f_map; // Create f_map struct instance
 	// pop off first int argument from interrupt frame
-	f_map->file_descriptor = *((int*)f->esp + 1);
+	char* file_name = (void*)(*(int*)f->esp + 1);
 	// Described in system_calls.h, opens the file
-	f_map->file = file_open(f_map->file_descriptor);
+	f_map->file = file_open(file_name);
 	if (f_map->file == NULL) // Checking if file is empty or non-existent
 		f->eax = -1; // Returning a failure state
+	f_map->file_descriptor = f_map->file;
 	f->eax = f_map->file_descriptor; // Returning the file descriptor
 }
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