NAME
BIO_printf,
BIO_vprintf, BIO_snprintf,
BIO_vsnprintf —
formatted output to a BIO
SYNOPSIS
#include
<openssl/bio.h>
int
BIO_printf(BIO *bio,
const char *format, ...);
int
BIO_vprintf(BIO *bio,
const char *format, va_list
args);
int
BIO_snprintf(char *buf,
size_t n, const char *format,
...);
int
BIO_vsnprintf(char *buf,
size_t n, const char *format,
va_list args);
DESCRIPTION
BIO_vprintf()
is a wrapper around vfprintf(3), sending the output to the specified
bio.
BIO_printf()
is a wrapper around BIO_vprintf().
BIO_snprintf()
and
BIO_vsnprintf()
are wrappers around vsnprintf(3).
RETURN VALUES
These functions return the number of bytes written, or -1 if an error occurs.
In contrast to
snprintf(3) and
vsnprintf(3), BIO_snprintf() and
BIO_vsnprintf() also return -1 if
n is too small to hold the complete output.
SEE ALSO
HISTORY
BIO_printf() first appeared in SSLeay
0.6.5 and has been available since OpenBSD 2.4.
BIO_vprintf(),
BIO_snprintf(), and
BIO_vsnprintf() first appeared in OpenSSL 0.9.6 and
have been available since OpenBSD 2.9.