class Vsftpd < Formula
  desc "Secure FTP server for UNIX"
  homepage "https://security.appspot.com/vsftpd.html"
  url "https://security.appspot.com/downloads/vsftpd-3.0.3.tar.gz"
  mirror "https://fossies.org/linux/misc/vsftpd-3.0.3.tar.gz"
  sha256 "9d4d2bf6e6e2884852ba4e69e157a2cecd68c5a7635d66a3a8cf8d898c955ef7"

  bottle do
    cellar :any_skip_relocation
    rebuild 1
    sha256 "7d98e1f2c4526539ec13519876f6c726e66b8093f3d1290325bb1c0762e70959" => :sierra
    sha256 "3227e7afcd2af84901a16d675bd1a7566002c4eacffa2313d89fbc3b7e594f76" => :el_capitan
    sha256 "aba9772d903374b3d3de5ce8c96a5f02badbc7676735c5ee42571ad0170dbb7f" => :yosemite
    sha256 "3bd82ae896d375342b6444f3c6be2eb5987df5da5084ee3c5f8dc073e001a5c2" => :mavericks
  end

  depends_on "openssl" => :optional

  # Patch to remove UTMPX dependency, locate macOS's PAM library, and
  # remove incompatible LDFLAGS. (reported to developer via email)
  patch :DATA

  def install
    if build.with? "openssl"
      inreplace "builddefs.h", "#undef VSF_BUILD_SSL", "#define VSF_BUILD_SSL"
    end

    inreplace "defs.h", "/etc/vsftpd.conf", "#{etc}/vsftpd.conf"
    inreplace "tunables.c", "/etc", etc
    inreplace "tunables.c", "/var", var
    system "make"

    # make install has all the paths hardcoded; this is easier:
    sbin.install "vsftpd"
    etc.install "vsftpd.conf"
    man5.install "vsftpd.conf.5"
    man8.install "vsftpd.8"
  end

  def caveats
    s = ""

    if build.with? "openssl"
      s += <<-EOS.undent
        vsftpd was compiled with SSL support. To use it you must generate a SSL
        certificate and set 'enable_ssl=YES' in your config file.
      EOS
    end

    s
  end
end

__END__
diff --git a/sysdeputil.c b/sysdeputil.c
index 9dc8a5e..66dbe30 100644
--- a/sysdeputil.c
+++ b/sysdeputil.c
@@ -64,6 +64,10 @@
 #include <utmpx.h>
 
 /* BEGIN config */
+#if defined(__APPLE__)
+  #undef VSF_SYSDEP_HAVE_UTMPX
+#endif
+
 #if defined(__linux__)
   #include <errno.h>
   #include <syscall.h>
diff --git a/vsf_findlibs.sh b/vsf_findlibs.sh
index b988be6..68d4a34 100755
--- a/vsf_findlibs.sh
+++ b/vsf_findlibs.sh
@@ -20,6 +20,8 @@ if find_func pam_start sysdeputil.o; then
   locate_library /usr/lib/libpam.sl && echo "-lpam";
   # AIX ends shared libraries with .a
   locate_library /usr/lib/libpam.a && echo "-lpam";
+  # Mac OS X / Darwin shared libraries with .dylib
+  locate_library /usr/lib/libpam.dylib && echo "-lpam";
 else
   locate_library /lib/libcrypt.so && echo "-lcrypt";
   locate_library /usr/lib/libcrypt.so && echo "-lcrypt";
diff --git a/Makefile b/Makefile
index c63ed1b..556519e 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,7 @@ CFLAGS	=	-O2 -fPIE -fstack-protector --param=ssp-buffer-size=4 \

 LIBS	=	`./vsf_findlibs.sh`
 LINK	=	-Wl,-s
-LDFLAGS	=	-fPIE -pie -Wl,-z,relro -Wl,-z,now
+LDFLAGS	=	-fPIE -pie

 OBJS	=	main.o utility.o prelogin.o ftpcmdio.o postlogin.o privsock.o \
		tunables.o ftpdataio.o secbuf.o ls.o \