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[image] Provide image_set_data()

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Extract part of the logic in initrd_init() to a standalone function
image_set_data().

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2021-01-20 18:03:16 +00:00
parent ae73fb5aa0
commit 99ac69b8a9
3 changed files with 34 additions and 12 deletions
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24
src/core/image.c
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@@ -175,6 +175,30 @@ int image_set_cmdline ( struct image *image, const char *cmdline ) {
return 0;
}
/**
* Set image data
*
* @v image Image
* @v data Image data
* @v len Length of image data
* @ret rc Return status code
*/
int image_set_data ( struct image *image, userptr_t data, size_t len ) {
userptr_t new;
/* (Re)allocate image data */
new = urealloc ( image->data, len );
if ( ! new )
return -ENOMEM;
image->data = new;
/* Copy in new image data */
memcpy_user ( image->data, 0, data, 0, len );
image->len = len;
return 0;
}
/**
* Determine image type
*