EMILE/libemile/emile_second_get_configuration.c
Laurent Vivier 9bd9755dbb Update email address
Signed-off-by: Laurent Vivier <Laurent@Vivier.EU>
2013-09-05 14:45:27 +02:00

54 lines
947 B
C

/*
*
* (c) 2005-2007 Laurent Vivier <Laurent@Vivier.EU>
*
*/
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include "libemile.h"
#include "emile.h"
int8_t* emile_second_get_configuration(int fd)
{
int8_t *conf;
emile_l2_header_t header;
int ret;
int size;
memset(&header, 0, sizeof(header));
ret = read(fd, &header, sizeof(header));
if (!EMILE_COMPAT(EMILE_06_SIGNATURE, read_long(&header.signature)))
{
off_t offset;
offset = lseek(fd, FIRST_LEVEL_SIZE, SEEK_SET);
ret = read(fd, &header, sizeof(header));
if (!EMILE_COMPAT(EMILE_06_SIGNATURE, read_long(&header.signature)))
{
lseek(fd, offset, SEEK_SET);
return NULL;
}
}
if (ret != sizeof(header))
return NULL;
size = read_short(&header.conf_size);
conf = (int8_t*)malloc(size);
if (conf == NULL)
return NULL;
ret = read(fd, conf, size);
if (ret != size)
{
free(conf);
return NULL;
}
return conf;
}