LCOV - code coverage report
Current view: top level - glib/glib - gjournal-private.c (source / functions) Hit Total Coverage
Test: unnamed Lines: 7 12 58.3 %
Date: 2024-04-23 05:16:05 Functions: 1 2 50.0 %
Branches: 2 10 20.0 %

           Branch data     Line data    Source code
       1                 :            : /*
       2                 :            :  * Copyright 2016 Red Hat, Inc.
       3                 :            :  * Copyright 2016-2022 Collabora Ltd.
       4                 :            :  * Copyright 2017-2022 Endless OS Foundation, LLC
       5                 :            :  * Copyright 2018 Will Thompson
       6                 :            :  *
       7                 :            :  * SPDX-License-Identifier: LGPL-2.1-or-later
       8                 :            :  *
       9                 :            :  * This library is free software; you can redistribute it and/or
      10                 :            :  * modify it under the terms of the GNU Lesser General Public
      11                 :            :  * License as published by the Free Software Foundation; either
      12                 :            :  * version 2.1 of the License, or (at your option) any later version.
      13                 :            :  *
      14                 :            :  * This library is distributed in the hope that it will be useful,
      15                 :            :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      16                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      17                 :            :  * Lesser General Public License for more details.
      18                 :            :  *
      19                 :            :  * You should have received a copy of the GNU Lesser General Public License
      20                 :            :  * along with this library; if not, see <http://www.gnu.org/licenses/>.
      21                 :            :  */
      22                 :            : 
      23                 :            : #include "gjournal-private.h"
      24                 :            : 
      25                 :            : #if defined(__linux__) && !defined(__ANDROID__)
      26                 :            : #include <string.h>
      27                 :            : #include <sys/socket.h>
      28                 :            : #include <sys/un.h>
      29                 :            : 
      30                 :            : /*
      31                 :            :  * Reimplementation of g_str_has_prefix(), necessary when compiled into
      32                 :            :  * gio-launch-desktop.
      33                 :            :  */
      34                 :            : static int
      35                 :          0 : str_has_prefix (const char *str,
      36                 :            :                 const char *prefix)
      37                 :            : {
      38                 :          0 :   return strncmp (str, prefix, strlen (prefix)) == 0;
      39                 :            : }
      40                 :            : 
      41                 :            : /*
      42                 :            :  * _g_fd_is_journal:
      43                 :            :  * @output_fd: output file descriptor to check
      44                 :            :  *
      45                 :            :  * Same as g_log_writer_is_journald(), but with no GLib dependencies.
      46                 :            :  *
      47                 :            :  * Returns: 1 if @output_fd points to the journal, 0 otherwise
      48                 :            :  */
      49                 :            : int
      50                 :        109 : _g_fd_is_journal (int output_fd)
      51                 :            : {
      52                 :            :   /* FIXME: Use the new journal API for detecting whether we’re writing to the
      53                 :            :    * journal. See: https://github.com/systemd/systemd/issues/2473
      54                 :            :    */
      55                 :            :   union {
      56                 :            :     struct sockaddr_storage storage;
      57                 :            :     struct sockaddr sa;
      58                 :            :     struct sockaddr_un un;
      59                 :            :   } addr;
      60                 :            :   socklen_t addr_len;
      61                 :            :   int err;
      62                 :            : 
      63         [ -  + ]:        109 :   if (output_fd < 0)
      64                 :          0 :     return 0;
      65                 :            : 
      66                 :            :   /* Namespaced journals start with `/run/systemd/journal.${name}/` (see
      67                 :            :    * `RuntimeDirectory=systemd/journal.%i` in `systemd-journald@.service`. The
      68                 :            :    * default journal starts with `/run/systemd/journal/`. */
      69                 :        109 :   memset (&addr, 0, sizeof (addr));
      70                 :        109 :   addr_len = sizeof(addr);
      71                 :        109 :   err = getpeername (output_fd, &addr.sa, &addr_len);
      72   [ -  +  -  - ]:        109 :   if (err == 0 && addr.storage.ss_family == AF_UNIX)
      73   [ #  #  #  # ]:          0 :     return (str_has_prefix (addr.un.sun_path, "/run/systemd/journal/") ||
      74                 :          0 :             str_has_prefix (addr.un.sun_path, "/run/systemd/journal."));
      75                 :            : 
      76                 :        109 :   return 0;
      77                 :            : }
      78                 :            : #endif

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