crypto: factorize to hex chars conversion code.

Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24968)

1 files changed, 6 insertions, 0 deletions

diff --git a/include/internal/cryptlib.h b/include/internal/cryptlib.h
index 32caabad7e..65f2b36801 100644
--- a/include/internal/cryptlib.h
+++ b/include/internal/cryptlib.h
@@ -162,6 +162,12 @@ char *ossl_buf2hexstr_sep(const unsigned char *buf, long buflen, char sep);
 unsigned char *ossl_hexstr2buf_sep(const char *str, long *buflen,
                                    const char sep);
 
+/**
+ *  Writes |n| value in hex format into |buf|,
+ *  and returns the number of bytes written
+ */
+size_t ossl_to_hex(char *buf, uint8_t n);
+
 STACK_OF(SSL_COMP) *ossl_load_builtin_compressions(void);
 void ossl_free_compression_methods_int(STACK_OF(SSL_COMP) *methods);