From 11230acab97635104ea0133ff55253f71b103ff4 Mon Sep 17 00:00:00 2001
From: Alex Baines <alex@abaines.me.uk>
Date: Wed, 4 Jan 2017 17:03:22 +0000
Subject: [PATCH] linux: fix for opening relative paths via cmdline

---
 linux_4ed.cpp | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/linux_4ed.cpp b/linux_4ed.cpp
index ceaaa425..33d754cd 100644
--- a/linux_4ed.cpp
+++ b/linux_4ed.cpp
@@ -455,6 +455,11 @@ Sys_Get_Canonical_Sig(system_get_canonical){
     char* write_p = path;
     const char* read_p = filename;
 
+    // return 0 for relative paths (e.g. cmdline args)
+    if(len > 0 && filename[0] != '/'){
+        return 0;
+    }
+
     while(read_p < filename + len){
         if(read_p == filename || read_p[0] == '/'){
             if(read_p[1] == '/'){
@@ -529,9 +534,11 @@ Sys_Load_File_Sig(system_load_file){
     int fd = *(int*)&handle;
     do {
         ssize_t n = read(fd, buffer, size);
-        if(n == -1 && errno != EAGAIN){
-            perror("read");
-            break;
+        if(n == -1){
+            if(errno != EINTR){
+                perror("read");
+                break;
+            }
         } else {
             size -= n;
             buffer += n;