void printUsage()

in fizz/tool/FizzClientCommand.cpp [43:93]

• 49 lines of code
• 1 McCabe index (conditional complexity)

void printUsage() {
  // clang-format off
  std::cerr
    << "Usage: client args\n"
    << "\n"
    << "Supported arguments:\n"
    << " -host host               (use connect instead)\n"
    << " -port port               (use connect instead)\n"
    << " -connect host:port       (set the address to connect to. Default: localhost:8443)\n"
    << " -verify                  (enable server cert verification. Default: false)\n"
    << " -cert cert               (PEM format client certificate to send if requested. Default: none)\n"
    << " -key key                 (PEM format private key for client certificate. Default: none)\n"
    << " -pass password           (private key password. Default: none)\n"
    << " -capath directory        (path to a directory of hashed formed CA certs used for verification.\n"
    << "                           The directory should contain one certificate or CRL per file in PEM format,\n"
    << "                           with a file name of the form hash.N for a certificate, or hash.rN for a CRL.\n"
    << "                           Refer to https://www.openssl.org/docs/man1.1.1/man1/rehash.html for how to generate such files.)\n"
    << " -cafile file             (path to a bundle file of CA certs used for verification; can be used with or without -capath.)\n"
    << " -reconnect               (after connecting, open another connection using a psk. Default: false)\n"
    << " -psk_save file           (after connecting, save the psk to file )\n"
    << " -psk_load file           (given file that contains a serialized psk, deserialize psk and open a connection with it)\n"
    << " -keylog file             (dump TLS secrets to a NSS key log file; for debugging purpose only)\n"
    << " -servername name         (server name to send in SNI. Default: same as host)\n"
    << " -alpn alpn1:...          (colon-separated list of ALPNs to send. Default: none)\n"
    << " -ciphers c1:...          (colon-separated list of ciphers in preference order. Default:\n"
    << "                           TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256)\n"
    << " -sigschemes s1:...       (colon-separated list of signature schemes in preference order.\n"
    << " -curves c1:...           (colon-separated list of supported ECDSA curves. Default: secp256r1, x25519)\n"
    << " -certcompression a1:...  (enables certificate compression support for given algorithms. Default: None)\n"
    << " -early                   (enables sending early data during resumption. Default: false)\n"
    << " -quiet                   (hide informational logging. Default: false)\n"
    << " -v verbosity             (set verbose log level for VLOG macros. Default: 0)\n"
    << " -vmodule m1=N,...        (set per-module verbose log level for VLOG macros. Default: none)\n"
    << " -httpproxy host:port     (set an HTTP proxy to use. Default: none)\n"
    << " -delegatedcred           (enable delegated credential support. Default: false)\n"
    << " -ech                     (use default values to simulate the sending of an encrypted client hello.)\n"
    << " -echconfigs file         (path to read ECH configs from. Format for contents is JSON.)\n"
    << "                          (JSON format: {echconfigs: [${your ECH config here with all the fields..}]})\n"
    << "                          (See FizzCommandCommonTest for an example.)\n"
    << "                          (Note: Setting ech configs implicitly enables ECH.)\n"
#ifdef FIZZ_TOOL_ENABLE_IO_URING
    << " -io_uring                (use io_uring for I/O. Default: false)\n"
    << " -io_uring_capacity N     (backend capacity for io_uring. Default: 128)\n"
    << " -io_uring_max_submit N   (maximum submit size for io_uring. Default: 64)\n"
    << " -io_uring_max_get N      (maximum get size for io_uring. Default: no limit)\n"
    << " -io_uring_register_fds   (use registered fds with io_uring. Default: false)\n"
    << " -io_uring_async_recv     (use async recv for io_uring. Default: false)\n"
#endif
  ;
  // clang-format on
}