I2D_PKCS7_BIO_STREAM(3) | Library Functions Manual | I2D_PKCS7_BIO_STREAM(3)

# NAME

`i2d_PKCS7_bio_stream` — output PKCS7 structure in BER format

# SYNOPSIS

library “libcrypto”
`#include <openssl/pkcs7.h>`

int
`i2d_PKCS7_bio_stream`(BIO *out, PKCS7 *p7, BIO *data, int flags);

# DESCRIPTION

`i2d_PKCS7_bio_stream`() outputs a PKCS7 structure in BER format. It is otherwise identical to the function SMIME_write_PKCS7(3). This function is effectively a version of i2d_PKCS7_bio(3) supporting streaming.

# RETURN VALUES

`i2d_PKCS7_bio_stream`() returns 1 for success or 0 for failure.

# SEE ALSO

BIO_new(3), ERR_get_error(3), PEM_write_bio_PKCS7_stream(3), PEM_write_PKCS7(3), PKCS7_final(3), PKCS7_new(3), SMIME_write_PKCS7(3)

# HISTORY

`i2d_PKCS7_bio_stream`() first appeared in OpenSSL 1.0.0 and has been available since OpenBSD 4.9.

# BUGS

The prefix "i2d" is arguably wrong because the function outputs BER format.

June 8, 2025 | Debian