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/*
* Copyright (c) 2005 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
RCSID("$Id: dumpdata.c 23412 2008-07-26 18:34:23Z lha $");
#endif
#include <unistd.h>
#include <roken.h>
/*
* Write datablob to a filename, don't care about errors.
*/
void ROKEN_LIB_FUNCTION
rk_dumpdata (const char *filename, const void *buf, size_t size)
{
int fd;
fd = open(filename, O_WRONLY|O_TRUNC|O_CREAT, 0640);
if (fd < 0)
return;
net_write(fd, buf, size);
close(fd);
}
/*
* Read all data from a filename, care about errors.
*/
int ROKEN_LIB_FUNCTION
rk_undumpdata(const char *filename, void **buf, size_t *size)
{
struct stat sb;
int fd, ret;
ssize_t sret;
*buf = NULL;
fd = open(filename, O_RDONLY, 0);
if (fd < 0)
return errno;
if (fstat(fd, &sb) != 0){
ret = errno;
goto out;
}
*buf = malloc(sb.st_size);
if (*buf == NULL) {
ret = ENOMEM;
goto out;
}
*size = sb.st_size;
sret = net_read(fd, *buf, *size);
if (sret < 0)
ret = errno;
else if (sret != *size) {
ret = EINVAL;
free(*buf);
*buf = NULL;
} else
ret = 0;
out:
close(fd);
return ret;
}
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