From 91f056ab715834b0e822c5a23a4f5165a9ed02c3 Mon Sep 17 00:00:00 2001
From: Anders Borum <palmin@users.noreply.github.com>
Date: Mon, 29 Jan 2018 10:23:56 +0100
Subject: [PATCH] safer way to skip leading \ in arg

move past leading '\\' for command arguments in a way that does not ruin it for free()
---
 ios_system.m | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ios_system.m b/ios_system.m
index 79248041..c5385c84 100644
--- a/ios_system.m
+++ b/ios_system.m
@@ -892,7 +892,8 @@ int ios_system(const char* inputCmd) {
             // The executable file has precedence, unless the user has specified they want the original
             // version, by prefixing it with \. So "\ls" == always "our" ls. "ls" == maybe ~/Library/bin/ls
             // (if it exists).
-            argv[0] = argv[0] + 1;
+            size_t len_with_terminator = strlen(argv[0] + 1) + 1;
+            memmove(argv[0], argv[0] + 1, len_with_terminator);
         } else  {
             NSString* commandName = [NSString stringWithCString:argv[0]];
             BOOL isDir = false;