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#include <confuse.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "list.h"
#include "genimage.h"
struct flash_image {
};
static int flash_generate(struct image *image)
{
struct partition *part;
struct stat s;
int ret;
const char *buf;
list_for_each_entry(part, &image->partitions, list) {
struct image *child;
child = image_get(part->image);
if (!child) {
image_error(image, "could not find %s\n", part->name);
return -EINVAL;
}
buf = imageoutfile(child);
ret = stat(buf, &s);
if (ret)
return -errno;
if (s.st_size > part->size) {
image_error(image, "image file %s for partition %s is bigger than partition (%ld > %lld)\n",
child->file, part->name, s.st_size, part->size);
return -EINVAL;
}
}
return 0;
}
static int flash_setup(struct image *image, cfg_t *cfg)
{
struct flash_image *f = xzalloc(sizeof(*f));
struct partition *part;
int last = 0;
unsigned long long partsize = 0, flashsize;
image->handler_priv = f;
if (!image->flash_type) {
image_error(image, "no flash type given\n");
return -EINVAL;
}
flashsize = image->flash_type->pebsize * image->flash_type->numpebs;
list_for_each_entry(part, &image->partitions, list) {
if (last) {
image_error(image, "only last partition may have size 0\n");
return -EINVAL;
}
if (!part->size) {
last = 1;
if (partsize > flashsize)
goto err_exceed;
part->size = flashsize - partsize;
}
partsize += part->size;
}
if (partsize > flashsize) {
err_exceed:
image_error(image, "size of partitions (%lld) exceeds flash size (%lld)\n",
partsize, flashsize);
return -EINVAL;
}
return 0;
}
static cfg_opt_t flash_opts[] = {
CFG_END()
};
struct image_handler flash_handler = {
.type = "flash",
.generate = flash_generate,
.setup = flash_setup,
.opts = flash_opts,
};
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