libexplain/readlink.h

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/*
 * libexplain - Explain errno values returned by libc functions
 * Copyright (C) 2008, 2009, 2013 Peter Miller
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or (at
 * your option) any later version.
 *
 * This program 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef LIBEXPLAIN_READLINK_H
#define LIBEXPLAIN_READLINK_H

#include <libexplain/gcc_attributes.h>
#include <libexplain/large_file_support.h>

#include <unistd.h>

#ifdef __cplusplus
extern "C" {
#endif

ssize_t explain_readlink_or_die(const char *pathname, char *data,
    size_t data_size);

ssize_t explain_readlink_on_error(const char *pathname, char *data,
    size_t data_size)
                                                  LIBEXPLAIN_WARN_UNUSED_RESULT;

const char *explain_readlink(const char *pathname, char *data, size_t data_size)
                                                  LIBEXPLAIN_WARN_UNUSED_RESULT;

const char *explain_errno_readlink(int errnum, const char *pathname, char *data,
    size_t data_size)
                                                  LIBEXPLAIN_WARN_UNUSED_RESULT;

void explain_message_readlink(char *message, int message_size,
    const char *pathname, char *data, size_t data_size);

void explain_message_errno_readlink(char *message, int message_size, int errnum,
    const char *pathname, char *data, size_t data_size);

#ifdef __cplusplus
}
#endif

/* vim: set ts=8 sw=4 et : */
#endif /* LIBEXPLAIN_READLINK_H */