/* $OpenBSD: b_print.c,v 1.28 2024/03/02 09:18:28 tb Exp $ */

/* Theo de Raadt places this file in the public domain. */

#include <openssl/bio.h>

#include "bio_local.h"

#ifdef HAVE_FUNOPEN
static int
_BIO_write(void *cookie, const char *buf, int nbytes)
{
        return BIO_write(cookie, buf, nbytes);
}

int
BIO_vprintf(BIO *bio, const char *format, va_list args)
{
        int ret;
        FILE *fp;

        fp = funopen(bio, NULL, &_BIO_write, NULL, NULL);
        if (fp == NULL) {
                ret = -1;
                goto fail;
        }
        ret = vfprintf(fp, format, args);
        fclose(fp);
fail:
        return (ret);
}

#else /* !HAVE_FUNOPEN */

int
BIO_vprintf(BIO *bio, const char *format, va_list args)
{
        int ret;
        char *buf = NULL;

        ret = vasprintf(&buf, format, args);
        if (ret == -1)
                return (ret);
        BIO_write(bio, buf, ret);
        free(buf);
        return (ret);
}

#endif /* HAVE_FUNOPEN */

int
BIO_printf(BIO *bio, const char *format, ...)
{
        va_list args;
        int ret;

        va_start(args, format);
        ret = BIO_vprintf(bio, format, args);
        va_end(args);
        return (ret);
}
LCRYPTO_ALIAS(BIO_printf);