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#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdbool.h>
#include <stdlib.h>
/*
* Return the offset, and the length of an ELF section with a given name in a given ELF file
*/
bool appimage_get_elf_section_offset_and_length(const char* fname, const char* section_name, unsigned long* offset, unsigned long* length);
int appimage_print_hex(const char* fname, unsigned long offset, unsigned long length);
int appimage_print_binary(const char* fname, unsigned long offset, unsigned long length);
/*
* Creates hexadecimal representation of a byte array. Allocates a new char array (string) with the correct size that
* needs to be free()d.
*/
char* appimage_hexlify(const char* bytes, size_t numBytes);
/*
* Calculate MD5 digest of AppImage file, skipping the signature and digest sections.
*
* The digest section must be skipped as the value calculated by this method is going to be embedded in it by default.
*
* The signature section must be skipped as the signature will not be available at the time this hash is calculated.
*
* The hash is _not_ compatible with tools like md5sum.
*
* You need to allocate a char array of at least 16 bytes (128 bit) and pass a reference to it as digest parameter.
* The function will set it to the raw digest, without any kind of termination. Please use appimage_hexlify() if you
* need a textual representation.
*
* Please beware that this calculation is only available for type 2 AppImages.
*/
bool appimage_type2_digest_md5(const char* fname, char* digest);
#ifdef __cplusplus
}
#endif
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