bootloader_sha256_hex_to_str() function

Converts an array to a printable string. This function is useful for printing SHA-256 digest.

{c}
 // Example of using. image_hash will be printed
 #define HASH_LEN 32 // SHA-256 digest length
 ...
 char hash_print[HASH_LEN * 2 + 1];
 hash_print[HASH_LEN * 2] = 0;
 bootloader_sha256_hex_to_str(hash_print, image_hash, HASH_LEN);
 ESP_LOGI(TAG, %s", hash_print);
 

Syntax

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Summary

Declaration

Definition

from bootloader_utility.h:106

esp_err_t bootloader_sha256_hex_to_str(char *out_str, const uint8_t *in_array_hex, size_t len);

Implemented in bootloader_utility.c:982

Arguments

Argument

Description

out_str

Output string

in_array_hex

Pointer to input array

len

Length of input array

Return value

ESP_OK: Successful ESP_ERR_INVALID_ARG: Error in the passed arguments

Examples

References

from examples

bootloader_sha256_hex_to_str() function

Syntax

Arguments

Return value

Examples

References

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