PKCS7_get_octet_string - return octet string from a PKCS#7 envelopedData structure
#include <openssl/pkcs7.h>
ASN1_OCTET_STRING *PKCS7_get_octet_string(PKCS7 *p7);PKCS7_get_octet_string() returns a pointer to an ASN1 octet string from a PKCS#7 envelopedData structure or NULL if the structure cannot be parsed.
As the 0 implies, PKCS7_get_octet_string() returns internal pointers which should not be freed by the caller.
PKCS7_get_octet_string() returns an ASN1_OCTET_STRING pointer.
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