PEM_WRITE_BIO_PKCS7_STREAM(3) | Library Functions Manual | PEM_WRITE_BIO_PKCS7_STREAM(3)

# NAME

`PEM_write_bio_PKCS7_stream` — output PKCS7 structure in PEM format

# SYNOPSIS

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

int
`PEM_write_bio_PKCS7_stream`(BIO *out, PKCS7 *p7, BIO *data, int flags);

# DESCRIPTION

`PEM_write_bio_PKCS7_stream`() outputs a PKCS7 structure in PEM format.

It is otherwise identical to the function SMIME_write_PKCS7(3).

This function is effectively a version of PEM_write_bio_PKCS7(3) supporting streaming.

# RETURN VALUES

Upon successful completion, 1 is returned; otherwise 0 is returned and an error code can be retrieved with ERR_get_error(3).

# SEE ALSO

BIO_new(3), i2d_PKCS7_bio_stream(3), PEM_write_PKCS7(3), PKCS7_final(3), PKCS7_new(3), SMIME_write_PKCS7(3)

# HISTORY

`PEM_write_bio_PKCS7_stream`() first appeared in OpenSSL 1.0.0 and has been available since OpenBSD 4.9.

June 8, 2025 | Debian