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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* padd_file.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#include "config.h"
#include "tar.h"
#include <stdlib.h>
#include <stdio.h>
int padd_file(FILE *fp, sqfs_u64 size)
{
size_t padd_sz = size % TAR_RECORD_SIZE;
int status = -1;
sqfs_u8 *buffer;
if (padd_sz == 0)
return 0;
padd_sz = TAR_RECORD_SIZE - padd_sz;
buffer = calloc(1, padd_sz);
if (buffer == NULL)
goto fail_errno;
if (write_retry("padding output file to block size",
fp, buffer, padd_sz)) {
goto out;
}
status = 0;
out:
free(buffer);
return status;
fail_errno:
perror("padding output file to block size");
goto out;
}
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