75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
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*
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* Copyright (C) 2011,2013 Colin Walters <walters@verbum.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Colin Walters <walters@verbum.org>
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*/
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#include "config.h"
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#include <stdarg.h>
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#include <errno.h>
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#include <string.h>
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#include <stdio.h>
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#include <sys/mount.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/statvfs.h>
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#include "ostree-mount-util.h"
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int
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perrorv (const char *format, ...)
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{
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va_list args;
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char buf[1024];
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char *p;
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#ifdef _GNU_SOURCE
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p = strerror_r (errno, buf, sizeof (buf));
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#else
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strerror_r (errno, buf, sizeof (buf));
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buf[sizeof (buf) - 1] = '\0';
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p = buf;
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#endif /* _GNU_SOURCE */
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va_start (args, format);
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vfprintf (stderr, format, args);
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fprintf (stderr, ": %s\n", p);
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fflush (stderr);
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va_end (args);
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return 0;
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}
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int
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path_is_on_readonly_fs (char *path)
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{
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struct statvfs stvfsbuf;
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if (statvfs (path, &stvfsbuf) == -1)
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{
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perrorv ("statvfs(%s): ", path);
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exit (EXIT_FAILURE);
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}
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return (stvfsbuf.f_flag & ST_RDONLY) != 0;
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}
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