Handle read(n) returning nil

Fixes Homebrew/homebrew#33090.
2014-10-10 20:25:38 -05:00 · 2014-10-10 20:25:38 -05:00 · a6df8785d8
commit a6df8785d8
parent 01397d17f7
1 changed files with 1 additions and 1 deletions
--- a/Library/Homebrew/mach.rb
+++ b/Library/Homebrew/mach.rb
@ -60,7 +60,7 @@ module MachO
    offsets = []
    mach_data = []

-    header = read(8).unpack("N2")
+    header = (read(8) || "").unpack("N2")
    case header[0]
    when 0xcafebabe # universal
      header[1].times do |i|