LIBKECCAK_HMAC_COPY(3)

💖 NAME 💖

okay bestie, this page is from the LIBKECCAK manual, and the function is libkeccak_hmac_copy — it copies an HMAC-hashing state. slay.

🛠️ SYNOPSIS 🛠️

#include <libkeccak.h>

int libkeccak_hmac_copy(struct libkeccak_hmac_state *dest, const struct libkeccak_hmac_state *src);

Link with -lkeccak, obviously 💅

✨ DESCRIPTION ✨

so the libkeccak_hmac_copy() function initialises *dest to be identical to *src. and when we say identical, we mean identical — this includes all members of the struct libkeccak_hmac_state structure, including the state of the sponge and the message chunk buffer. it's giving full clone energy, no cap 🫶

🫶 RETURN VALUES 🫶

• on success, libkeccak_hmac_copy() returns 0. periodt ✨
• on error, it returns -1, and errno is set to describe the error. 😭

😭 ERRORS 😭

the libkeccak_hmac_copy() function may fail for any errors specified for the function malloc(3). that's the error list, bestie — keep it in mind 💀

👀 SEE ALSO 👀

• libkeccak_hmac_duplicate(3)
• libkeccak_hmac_initialise(3)

💖 cute little sign-off: this is from the LIBKECCAK manual — source/version tag LIBKECCAK, and the footer doesn't show a date, so no made-up date from me 🎀 mwah 💋