Some sample programs can't show usage instructions

[redtangent]

Description

• Type: Bug
• Priority: Minor

---

Bug

OS
linux|windows

mbed TLS build:
Version: All versions
Configuration: n/a
Compiler and options (if you used a pre-built binary, please indicate how you obtained it): n/a
Additional environment information: n/a

The following sample programs all appear to have a line if( argc == 0 ) before displaying usage instructions. The problem with that is unless main() is called via some means other than the shell, argc will always be greater than 0 as the first argument in argv is always the name of the program being executed. The line should be if( argc == 1 ) if it's meant to display when no arguments have been passed. That may be a mistake though, as some of the programs can execute with no provided options.

programs/util/pem2der.c
programs/x509/cert_req.c
programs/x509/cert_app.c
programs/x509/cert_write.c
programs/x509/req_app.c
programs/x509/crl_app.c
programs/pkey/dh_genprime.c
programs/pkey/key_app.c
programs/pkey/gen_key.c
programs/pkey/key_app_writer.c
programs/ssl/ssl_client2.c
programs/ssl/ssl_server2.c
programs/ssl/ssl_mail_client.c

[RonEld]

Hi @redtangent Thank you for reporting this issue!
We will look into this issue

[ciarmcom]

ARM Internal Ref: IOTSSL-1797

[tom-cosgrove-arm]

@aditya-deshpande-arm Fixing this should also fix the issue I mentioned today: #6700