EMILE/libemile/emile_second_set_param.c
2006-09-15 14:55:39 +00:00

61 lines
1.2 KiB
C

/*
*
* (c) 2006 Laurent Vivier <Laurent@lvivier.info>
*
*/
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include "libemile.h"
int emile_second_set_param(int fd, char *kernel, char *parameters, char *initrd)
{
int ret;
int drive, second, size;
char *configuration;
off_t offset;
/* can work on an image or directly on second level file */
lseek(fd, 0, SEEK_SET);
ret = emile_first_get_param(fd, &drive, &second, &size);
if (ret == EEMILE_UNKNOWN_FIRST)
{
/* should be a second level file */
ret = lseek(fd, 0, SEEK_SET);
if (ret == -1)
return -1;
}
offset = lseek(fd, 0, SEEK_CUR);
configuration = emile_second_get_configuration(fd);
if (configuration == NULL)
return -1;
if (kernel != NULL)
emile_second_set_property(configuration, "kernel", kernel);
if (parameters != NULL)
emile_second_set_property(configuration, "parameters", parameters);
if (initrd != NULL)
emile_second_set_property(configuration, "initrd", initrd);
emile_second_set_property(configuration, "vga", "default");
ret = lseek(fd, offset, SEEK_SET);
if (ret == -1)
return -1;
ret = emile_second_set_configuration(fd, configuration);
if (ret != 0)
return -1;
free(configuration);
return 0;
}