I've got an error in openssl library function when trying to read a pkcs7 message
[schmidt@localhost ssl]$ ./bin/openssl version OpenSSL 3.0.0-dev xx XXX xxxx (Library: OpenSSL 3.0.0-dev xx XXX xxxx) [schmidt@localhost ssl]$ ./bin/openssl pkcs7 -in /tmp/55b0822e148e4ffaa0bd9ebc41814f54.der -inform DER -print_certs unable to load PKCS7 object 40:57:70:89:A5:7F:00:00:error:asn1 encoding routines:(unknown function):sequence length mismatch:crypto/asn1/tasn_dec.c:388:Type=PKCS7_ENVELOPE 40:57:70:89:A5:7F:00:00:error:asn1 encoding routines:(unknown function):nested asn1 error:crypto/asn1/tasn_dec.c:629: 40:57:70:89:A5:7F:00:00:error:asn1 encoding routines:(unknown function):nested asn1 error:crypto/asn1/tasn_dec.c:479:Field=d.enveloped, Type=PKCS7 openssl asn1parse and other online tools correctly parse and display ASN1 of pkcs7 envelopedData. I want to run openssl utility under debugger to see what is happening inside the library function. I've found OpenSSL library source code https://github.com/openssl/openssl but not the sources for command line utility. Are the sources available? Or as an option is there a guide how I could write a simple pkcs7 envelopedData reader to debug the library function?
