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image: Add support for opening one image from multiple files

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Pali Rohár committed 2023-04-15 21:55:48 +02:00
1 parent fa8a03ec5e
commit add1ae03aa
3 files changed
+233 -98
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src/image.h
+14 -7
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@@ -50,6 +50,17 @@ struct image_part {
char * name;
};
struct image_fd {
struct image_fd * next;
int fd;
int is_shared_fd;
off_t shared_cur;
uint32_t size;
uint32_t align;
size_t offset;
char * orig_filename;
};
struct image {
enum image_type type;
struct device_list * devices;
@@ -58,14 +69,8 @@ struct image {
uint16_t hash;
uint32_t size;
struct image_part * parts;
int fd;
int is_shared_fd;
uint32_t align;
size_t offset;
struct image_fd * fds;
size_t cur;
size_t acur;
char * orig_filename;
};
struct image_list {
@@ -75,7 +80,9 @@ struct image_list {
};
struct image * image_alloc_from_file(const char * file, const char * type, const char * device, const char * hwrevs, const char * version, const char * layout, struct image_part * parts);
struct image * image_alloc_from_files(const char ** files, int count, const char * type, const char * device, const char * hwrevs, const char * version, const char * layout, struct image_part * parts);
struct image * image_alloc_from_fd(int fd, const char * orig_filename, const char * type, const char * device, const char * hwrevs, const char * version, const char * layout, struct image_part * parts);
struct image * image_alloc_from_fds(int * fds, const char ** orig_filenames, int count, const char * type, const char * device, const char * hwrevs, const char * version, const char * layout, struct image_part * parts);
struct image * image_alloc_from_shared_fd(int fd, size_t size, size_t offset, uint16_t hash, const char * type, const char * device, const char * hwrevs, const char * version, const char * layout, struct image_part * parts);
void image_free(struct image * image);
void image_seek(struct image * image, size_t whence);