From 9915d8f8a7b67b6eff91a8afbcb99c3b33df95f5 Mon Sep 17 00:00:00 2001
From: Hartmut Goebel <h.goebel@crazy-compilers.com>
Date: Tue, 5 Mar 2019 23:43:25 +0100
Subject: gnunet-qr: Implement functionality of gnunet-uri, don't spawn.

This copies the central part of gnunet-uri. Should better be in some
shared code.

Also eliminate helper lib "gnunet-qr-utils.h", which is no longer
used.
---
 src/util/gnunet-qr-utils.h | 111 ---------------------------------------------
 1 file changed, 111 deletions(-)
 delete mode 100644 src/util/gnunet-qr-utils.h

(limited to 'src/util/gnunet-qr-utils.h')

diff --git a/src/util/gnunet-qr-utils.h b/src/util/gnunet-qr-utils.h
deleted file mode 100644
index 6d821633c..000000000
--- a/src/util/gnunet-qr-utils.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
-     This file is part of GNUnet.
-     Copyright (C) 2010, 2011, 2012 Christian Grothoff
-     Copyright (C) 2019 GNUnet e.V.
-
-     GNUnet is free software: you can redistribute it and/or modify it
-     under the terms of the GNU Affero General Public License as published
-     by the Free Software Foundation, either version 3 of the License,
-     or (at your option) any later version.
-
-     GNUnet is distributed in the hope that it will be useful, but
-     WITHOUT ANY WARRANTY; without even the implied warranty of
-     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-     Affero General Public License for more details.
-
-     You should have received a copy of the GNU Affero General Public License
-     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-     SPDX-License-Identifier: AGPL3.0-or-later
-*/
-
-#include "platform.h"
-
-//
-// FIXME: These functions are copied from dns/gnunet-helper-dns.c,
-// move them into a common library. Or think about implementing a even
-// more elaborate version.
-//
-
-/**
- * Open '/dev/null' and make the result the given
- * file descriptor.
- *
- * @param target_fd desired FD to point to /dev/null
- * @param flags open flags (O_RDONLY, O_WRONLY)
- */
-static void
-open_dev_null (int target_fd,
-	       int flags)
-{
-  int fd;
-
-  fd = open ("/dev/null", flags);
-  if (-1 == fd)
-    abort ();
-  if (fd == target_fd)
-    return;
-  if (-1 == dup2 (fd, target_fd))
-  {
-    (void) close (fd);
-    abort ();
-  }
-  (void) close (fd);
-}
-
-/**
- * Run the given command and wait for it to complete.
- *
- * @param file name of the binary to run
- * @param cmd command line arguments (as given to 'execv')
- * @return 0 on success, 1 on any error
- */
-static int
-fork_and_exec (const char *file,
-	       char *const cmd[])
-{
-  int status;
-  pid_t pid;
-  pid_t ret;
-
-  pid = fork ();
-  if (-1 == pid)
-  {
-    fprintf (stderr,
-	     "fork failed: %s\n",
-	     strerror (errno));
-    return 1;
-  }
-  if (0 == pid)
-  {
-    /* we are the child process */
-    /* close stdin/stdout to not cause interference
-       with the helper's main protocol! */
-    (void) close (0);
-    open_dev_null (0, O_RDONLY);
-    (void) close (1);
-    open_dev_null (1, O_WRONLY);
-    (void) execv (file, cmd);
-    /* can only get here on error */
-    fprintf (stderr,
-	     "exec `%s' failed: %s\n",
-	     file,
-	     strerror (errno));
-    _exit (1);
-  }
-  /* keep running waitpid as long as the only error we get is 'EINTR' */
-  while ( (-1 == (ret = waitpid (pid, &status, 0))) &&
-	  (errno == EINTR) );
-  if (-1 == ret)
-  {
-    fprintf (stderr,
-	     "waitpid failed: %s\n",
-	     strerror (errno));
-    return 1;
-  }
-  if (! (WIFEXITED (status) && (0 == WEXITSTATUS (status))))
-    return 1;
-  /* child process completed and returned success, we're happy */
-  return 0;
-}
-
-- 
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