i2util 1.2 (new formula)

This is a dependency for owamp-3.4 and bwctl

Note: i2util includes binaries "aespasswd" and "pfstore" which were
previously in owamp-3.3, and therefore will generate link conflicts
with that package.

Closes Homebrew/legacy-homebrew#34705.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Formula/i2util.rb

@@ -0,0 +1,29 @@
+require "formula"
+
+class I2util < Formula
+  homepage "http://software.internet2.edu/"
+  url "http://software.internet2.edu/sources/I2util/I2util-1.2.tar.gz"
+  sha1 "56218a6e0f1306a70b641246fa6f63dd686e6766"
+
+  def install
+    system "./configure", "--disable-dependency-tracking",
+                          "--prefix=#{prefix}",
+                          "--mandir=#{man}"
+    system "make", "install"
+  end
+
+  test do
+    (testpath/"test.c").write <<-EOS.undent
+      #include <I2util/util.h>
+      #include <string.h>
+      int main() {
+        uint8_t buf[2];
+        if (!I2HexDecode("beef", buf, sizeof(buf))) return 1;
+        if (buf[0] != 190 || buf[1] != 239) return 1;
+        return 0;
+      }
+    EOS
+    system ENV.cc, "test.c", "-lI2util", "-o", "test"
+    system "./test"
+  end
+end