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Commit 8ccb6e46 authored by Tatsuhiro Tsujikawa's avatar Tatsuhiro Tsujikawa
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nghttpx: Use raw-string iteral to output help

parent e4dacb2f
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src/shrpx.cc
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...@@ -467,8 +467,8 @@ void print_version(std::ostream& out) ...@@ -467,8 +467,8 @@ void print_version(std::ostream& out)
namespace { namespace {
void print_usage(std::ostream& out) void print_usage(std::ostream& out)
{ {
out << "Usage: nghttpx [OPTIONS]... [<PRIVATE_KEY> <CERT>]\n" out << R"(Usage: nghttpx [OPTIONS]... [<PRIVATE_KEY> <CERT>]
<< "A reverse proxy for HTTP/2, HTTP/1 and SPDY." << std::endl; A reverse proxy for HTTP/2, HTTP/1 and SPDY.)" << std::endl;
} }
} // namespace } // namespace
...@@ -476,313 +476,308 @@ namespace { ...@@ -476,313 +476,308 @@ namespace {
void print_help(std::ostream& out) void print_help(std::ostream& out)
{ {
print_usage(out); print_usage(out);
out << "\n" out << R"(
<< " <PRIVATE_KEY> Set path to server's private key. Required\n" <PRIVATE_KEY> Set path to server's private key. Required
<< " unless -p, --client or --frontend-no-tls\n" unless -p, --client or --frontend-no-tls are
<< " are given.\n" given.
<< " <CERT> Set path to server's certificate. Required\n" <CERT> Set path to server's certificate. Required
<< " unless -p, --client or --frontend-no-tls\n" unless -p, --client or --frontend-no-tls are
<< " are given.\n" given.
<< "Options:\n" Options:
<< " The options are categorized into several groups.\n" The options are categorized into several groups.
<< "\n"
<< "Connections:\n" Connections:
<< " -b, --backend=<HOST,PORT>\n" -b, --backend=<HOST,PORT>
<< " Set backend host and port.\n" Set backend host and port.
<< " Default: '" Default: ')"
<< get_config()->downstream_host << "," << get_config()->downstream_host << ","
<< get_config()->downstream_port << "'\n" << get_config()->downstream_port << R"('
<< " -f, --frontend=<HOST,PORT>\n" -f, --frontend=<HOST,PORT>
<< " Set frontend host and port.\n" Set frontend host and port.
<< " Default: '" Default: ')"
<< get_config()->host << "," << get_config()->port << "'\n" << get_config()->host << "," << get_config()->port << R"('
<< " --backlog=<NUM> Set listen backlog size. If -1 is given,\n" --backlog=<NUM> Set listen backlog size. If -1 is given,
<< " libevent will choose suitable value.\n" libevent will choose suitable value.
<< " Default: " Default: )"
<< get_config()->backlog << "\n" << get_config()->backlog << R"(
<< " --backend-ipv4 Resolve backend hostname to IPv4 address\n" --backend-ipv4 Resolve backend hostname to IPv4 address only.
<< " only.\n" --backend-ipv6 Resolve backend hostname to IPv6 address only.
<< " --backend-ipv6 Resolve backend hostname to IPv6 address\n"
<< " only.\n" Performance:
<< "\n" -n, --workers=<CORES>
<< "Performance:\n" Set the number of worker threads.
<< " -n, --workers=<CORES>\n" Default: )"
<< " Set the number of worker threads.\n" << get_config()->num_worker << R"(
<< " Default: " --read-rate=<RATE>
<< get_config()->num_worker << "\n" Set maximum average read rate on frontend
<< " --read-rate=<RATE> Set maximum average read rate on frontend\n" connection. Setting 0 to this option means read
<< " connection. Setting 0 to this option means\n" rate is unlimited.
<< " read rate is unlimited.\n" Default: )"
<< " Default: " << get_config()->read_rate << R"(
<< get_config()->read_rate << "\n" --read-burst=<SIZE>
<< " --read-burst=<SIZE>\n" Set maximum read burst size on frontend
<< " Set maximum read burst size on frontend\n" connection. Setting 0 to this option means read
<< " connection. Setting 0 to this option means\n" burst size is unlimited.
<< " read burst size is unlimited.\n" Default: )"
<< " Default: " << get_config()->read_burst << R"(
<< get_config()->read_burst << "\n" --write-rate=<RATE>
<< " --write-rate=<RATE>\n" Set maximum average write rate on frontend
<< " Set maximum average write rate on frontend\n" connection. Setting 0 to this option means write
<< " connection. Setting 0 to this option means\n" rate is unlimited.
<< " write rate is unlimited.\n" Default: )"
<< " Default: " << get_config()->write_rate << R"(
<< get_config()->write_rate << "\n" --write-burst=<SIZE>
<< " --write-burst=<SIZE>\n" Set maximum write burst size on frontend
<< " Set maximum write burst size on frontend\n" connection. Setting 0 to this option means write
<< " connection. Setting 0 to this option means\n" burst size is unlimited.
<< " write burst size is unlimited.\n" Default: )"
<< " Default: " << get_config()->write_burst << R"(
<< get_config()->write_burst << "\n" --worker-read-rate=<RATE>
<< " --worker-read-rate=<RATE>\n" Set maximum average read rate on frontend
<< " Set maximum average read rate on frontend\n" connection per worker. Setting 0 to this option
<< " connection per worker. Setting 0 to this\n" means read rate is unlimited.
<< " option means read rate is unlimited.\n" Default: )"
<< " Default: " << get_config()->worker_read_rate << R"(
<< get_config()->worker_read_rate << "\n" --worker-read-burst=<SIZE>
<< " --worker-read-burst=<SIZE>\n" Set maximum read burst size on frontend
<< " Set maximum read burst size on frontend\n" connection per worker. Setting 0 to this option
<< " connection per worker. Setting 0 to this\n" means read burst size is unlimited.
<< " option means read burst size is unlimited.\n" Default: )"
<< " Default: " << get_config()->worker_read_burst << R"(
<< get_config()->worker_read_burst << "\n" --worker-write-rate=<RATE>
<< " --worker-write-rate=<RATE>\n" Set maximum average write rate on frontend
<< " Set maximum average write rate on frontend\n" connection per worker. Setting 0 to this option
<< " connection per worker. Setting 0 to this\n" means write rate is unlimited.
<< " option means write rate is unlimited.\n" Default: )"
<< " Default: " << get_config()->worker_write_rate << R"(
<< get_config()->worker_write_rate << "\n" --worker-write-burst=<SIZE>
<< " --worker-write-burst=<SIZE>\n" Set maximum write burst size on frontend
<< " Set maximum write burst size on frontend\n" connection per worker. Setting 0 to this option
<< " connection per worker. Setting 0 to this\n" means write burst size is unlimited.
<< " option means write burst size is unlimited.\n" Default: )"
<< " Default: " << get_config()->worker_write_burst << R"(
<< get_config()->worker_write_burst << "\n"
<< "\n" Timeout:
<< "Timeout:\n" --frontend-http2-read-timeout=<SEC>
<< " --frontend-http2-read-timeout=<SEC>\n" Specify read timeout for HTTP/2 and SPDY frontend
<< " Specify read timeout for HTTP/2.0 and SPDY frontend\n" connection.
<< " connection. Default: " Default: )"
<< get_config()->http2_upstream_read_timeout.tv_sec << "\n" << get_config()->http2_upstream_read_timeout.tv_sec << R"(
<< " --frontend-read-timeout=<SEC>\n" --frontend-read-timeout=<SEC>
<< " Specify read timeout for HTTP/1.1 frontend\n" Specify read timeout for HTTP/1.1 frontend
<< " connection. Default: " connection.
<< get_config()->upstream_read_timeout.tv_sec << "\n" Default: )"
<< " --frontend-write-timeout=<SEC>\n" << get_config()->upstream_read_timeout.tv_sec << R"(
<< " Specify write timeout for all frontends.\n" --frontend-write-timeout=<SEC>
<< " connection. Default: " Specify write timeout for all frontend
<< get_config()->upstream_write_timeout.tv_sec << "\n" connections.
<< " --backend-read-timeout=<SEC>\n" Default: )"
<< " Specify read timeout for backend connection.\n" << get_config()->upstream_write_timeout.tv_sec << R"(
<< " Default: " --backend-read-timeout=<SEC>
<< get_config()->downstream_read_timeout.tv_sec << "\n" Specify read timeout for backend connection.
<< " --backend-write-timeout=<SEC>\n" Default: )"
<< " Specify write timeout for backend\n" << get_config()->downstream_read_timeout.tv_sec << R"(
<< " connection. Default: " --backend-write-timeout=<SEC>
<< get_config()->downstream_write_timeout.tv_sec << "\n" Specify write timeout for backend connection.
<< " --backend-keep-alive-timeout=<SEC>\n" Default: )"
<< " Specify keep-alive timeout for backend\n" << get_config()->downstream_write_timeout.tv_sec << R"(
<< " connection. Default: " --backend-keep-alive-timeout=<SEC>
<< get_config()->downstream_idle_read_timeout.tv_sec << "\n" Specify keep-alive timeout for backend
<< " --backend-http-proxy-uri=<URI>\n" connection.
<< " Specify proxy URI in the form\n" Default: )"
<< " http://[<USER>:<PASS>@]<PROXY>:<PORT>. If\n" << get_config()->downstream_idle_read_timeout.tv_sec << R"(
<< " a proxy requires authentication, specify\n" --backend-http-proxy-uri=<URI>
<< " <USER> and <PASS>. Note that they must be\n" Specify proxy URI in the form
<< " properly percent-encoded. This proxy is used\n" http://[<USER>:<PASS>@]<PROXY>:<PORT>. If a
<< " when the backend connection is HTTP/2.0. First,\n" proxy requires authentication, specify <USER> and
<< " make a CONNECT request to the proxy and\n" <PASS>. Note that they must be properly
<< " it connects to the backend on behalf of\n" percent-encoded. This proxy is used when the
<< " nghttpx. This forms tunnel. After that, nghttpx\n" backend connection is HTTP/2. First, make a
<< " performs SSL/TLS handshake with the\n" CONNECT request to the proxy and it connects to
<< " downstream through the tunnel. The timeouts\n" the backend on behalf of nghttpx. This forms
<< " when connecting and making CONNECT request\n" tunnel. After that, nghttpx performs SSL/TLS
<< " can be specified by --backend-read-timeout\n" handshake with the downstream through the tunnel.
<< " and --backend-write-timeout options.\n" The timeouts when connecting and making CONNECT
<< "\n" request can be specified by
<< "SSL/TLS:\n" --backend-read-timeout and
<< " --ciphers=<SUITE> Set allowed cipher list. The format of the\n" --backend-write-timeout options.
<< " string is described in OpenSSL ciphers(1).\n"
<< " If this option is used, --honor-cipher-order\n" SSL/TLS:
<< " is implicitly enabled.\n" --ciphers=<SUITE> Set allowed cipher list. The format of the
<< " --honor-cipher-order\n" string is described in OpenSSL ciphers(1). If
<< " Honor server cipher order, giving the\n" this option is used, --honor-cipher-order is
<< " ability to mitigate BEAST attacks.\n" implicitly enabled.
<< " -k, --insecure Don't verify backend server's certificate\n" --honor-cipher-order
<< " if -p, --client or --http2-bridge are given\n" Honor server cipher order, giving the ability to
<< " and --backend-no-tls is not given\n" mitigate BEAST attacks.
<< " --cacert=<PATH> Set path to trusted CA certificate file\n" -k, --insecure
<< " if -p, --client or --http2-bridge are given\n" Don't verify backend server's certificate if -p,
<< " and --backend-no-tls is not given\n" --client or --http2-bridge are given and
<< " The file must be in PEM format. It can\n" --backend-no-tls is not given.
<< " contain multiple certificates. If the\n" --cacert=<PATH> Set path to trusted CA certificate file if -p,
<< " linked OpenSSL is configured to load system\n" --client or --http2-bridge are given and
<< " wide certificates, they are loaded\n" --backend-no-tls is not given. The file must be
<< " at startup regardless of this option.\n" in PEM format. It can contain multiple
<< " --private-key-passwd-file=<FILEPATH>\n" certificates. If the linked OpenSSL is
<< " Path to file that contains password for the\n" configured to load system wide certificates, they
<< " server's private key. If none is given and\n" are loaded at startup regardless of this option.
<< " the private key is password protected it'll\n" --private-key-passwd-file=<FILEPATH>
<< " be requested interactively.\n" Path to file that contains password for the
<< " --subcert=<KEYPATH>:<CERTPATH>\n" server's private key. If none is given and the
<< " Specify additional certificate and private\n" private key is password protected it'll be
<< " key file. nghttpx will choose certificates\n" requested interactively.
<< " based on the hostname indicated by client\n" --subcert=<KEYPATH>:<CERTPATH>
<< " using TLS SNI extension. This option can be\n" Specify additional certificate and private key
<< " used multiple times.\n" file. nghttpx will choose certificates based on
<< " --backend-tls-sni-field=<HOST>\n" the hostname indicated by client using TLS SNI
<< " Explicitly set the content of the TLS SNI\n" extension. This option can be used multiple
<< " extension. This will default to the backend\n" times.
<< " HOST name.\n" --backend-tls-sni-field=<HOST>
<< " --dh-param-file=<PATH>\n" Explicitly set the content of the TLS SNI
<< " Path to file that contains DH parameters in\n" extension. This will default to the backend HOST
<< " PEM format. Without this option, DHE cipher\n" name.
<< " suites are not available.\n" --dh-param-file=<PATH>
<< " --npn-list=<LIST> Comma delimited list of NPN/ALPN protocol sorted\n" Path to file that contains DH parameters in PEM
<< " in the order of preference. That means\n" format. Without this option, DHE cipher suites
<< " most desirable protocol comes first.\n" are not available.
<< " The parameter must be delimited by a single\n" --npn-list=<LIST> Comma delimited list of NPN/ALPN protocol sorted
<< " comma only and any white spaces are treated\n" in the order of preference. That means most
<< " as a part of protocol string.\n" desirable protocol comes first. The parameter
<< " Default: " << DEFAULT_NPN_LIST << "\n" must be delimited by a single comma only and any
<< " --verify-client Require and verify client certificate.\n" white spaces are treated as a part of protocol
<< " --verify-client-cacert=<PATH>\n" string.
<< " Path to file that contains CA certificates\n" Default: )" << DEFAULT_NPN_LIST << R"(
<< " to verify client certificate.\n" --verify-client Require and verify client certificate.
<< " The file must be in PEM format. It can\n" --verify-client-cacert=<PATH>
<< " contain multiple certificates.\n" Path to file that contains CA certificates to
<< " --client-private-key-file=<PATH>\n" verify client certificate. The file must be in
<< " Path to file that contains client private\n" PEM format. It can contain multiple
<< " key used in backend client authentication.\n" certificates.
<< " --client-cert-file=<PATH>\n" --client-private-key-file=<PATH>
<< " Path to file that contains client\n" Path to file that contains client private key
<< " certificate used in backend client\n" used in backend client authentication.
<< " authentication.\n" --client-cert-file=<PATH>
<< " --tls-proto-list=<LIST>\n" Path to file that contains client certificate
<< " Comma delimited list of SSL/TLS protocol to\n" used in backend client authentication.
<< " be enabled.\n" --tls-proto-list=<LIST>
<< " The following protocols are available:\n" Comma delimited list of SSL/TLS protocol to be
<< " TLSv1.2, TLSv1.1, TLSv1.0, SSLv3\n" enabled. The following protocols are available:
<< " The name matching is done in case-insensitive\n" TLSv1.2, TLSv1.1, TLSv1.0 and SSLv3. The name
<< " manner.\n" matching is done in case-insensitive manner. The
<< " The parameter must be delimited by a single\n" parameter must be delimited by a single comma
<< " comma only and any white spaces are treated\n" only and any white spaces are treated as a part
<< " as a part of protocol string.\n" of protocol string.
<< " Default: " << DEFAULT_TLS_PROTO_LIST << "\n" Default: )" << DEFAULT_TLS_PROTO_LIST << R"(
<< "\n"
<< "HTTP/2.0 and SPDY:\n" HTTP/2 and SPDY:
<< " -c, --http2-max-concurrent-streams=<NUM>\n" -c, --http2-max-concurrent-streams=<NUM>
<< " Set the maximum number of the concurrent\n" Set the maximum number of the concurrent streams
<< " streams in one HTTP/2.0 and SPDY session.\n" in one HTTP/2 and SPDY session.
<< " Default: " Default: )"
<< get_config()->http2_max_concurrent_streams << "\n" << get_config()->http2_max_concurrent_streams << R"(
<< " --frontend-http2-window-bits=<N>\n" --frontend-http2-window-bits=<N>
<< " Sets the per-stream initial window size of HTTP/2.0\n" Sets the per-stream initial window size of HTTP/2
<< " SPDY frontend connection. For HTTP/2.0, the size is\n" SPDY frontend connection. For HTTP/2, the size
<< " 2**<N>-1. For SPDY, the size is 2**<N>\n" is 2**<N>-1. For SPDY, the size is 2**<N>.
<< " Default: " Default: )"
<< get_config()->http2_upstream_window_bits << "\n" << get_config()->http2_upstream_window_bits << R"(
<< " --frontend-http2-connection-window-bits=<N>\n" --frontend-http2-connection-window-bits=<N>
<< " Sets the per-connection window size of HTTP/2.0 and\n" Sets the per-connection window size of HTTP/2 and
<< " SPDY frontend connection. For HTTP/2.0, the size is\n" SPDY frontend connection. For HTTP/2, the size
<< " 2**<N>-1. For SPDY, the size is 2**<N>.\n" is 2**<N>-1. For SPDY, the size is 2**<N>.
<< " Default: " Default: )"
<< get_config()->http2_upstream_connection_window_bits << "\n" << get_config()->http2_upstream_connection_window_bits << R"(
<< " --frontend-no-tls Disable SSL/TLS on frontend connections.\n" --frontend-no-tls Disable SSL/TLS on frontend connections.
<< " --backend-http2-window-bits=<N>\n" --backend-http2-window-bits=<N>
<< " Sets the initial window size of HTTP/2.0 backend\n" Sets the initial window size of HTTP/2 backend
<< " connection to 2**<N>-1.\n" connection to 2**<N>-1.
<< " Default: " Default: )"
<< get_config()->http2_downstream_window_bits << "\n" << get_config()->http2_downstream_window_bits << R"(
<< " --backend-http2-connection-window-bits=<N>\n" --backend-http2-connection-window-bits=<N>
<< " Sets the per-connection window size of HTTP/2.0\n" Sets the per-connection window size of HTTP/2
<< " backend connection to 2**<N>-1.\n" backend connection to 2**<N>-1.
<< " Default: " Default: )"
<< get_config()->http2_downstream_connection_window_bits << "\n" << get_config()->http2_downstream_connection_window_bits << R"(
<< " --backend-no-tls Disable SSL/TLS on backend connections.\n" --backend-no-tls Disable SSL/TLS on backend connections.
<< " --http2-no-cookie-crumbling\n" --http2-no-cookie-crumbling
<< " Don't crumble cookie header field.\n" Don't crumble cookie header field.
<< " --padding=<N> Add at most <N> bytes to a HTTP/2 frame payload\n" --padding=<N> Add at most <N> bytes to a HTTP/2 frame payload
<< " as padding.\n" as padding. Specify 0 to disable padding. This
<< " Specify 0 to disable padding. This option is\n" option is meant for debugging purpose and not
<< " meant for debugging purpose and not intended\n" intended to enhance protocol security.
<< " to enhance protocol security.\n"
<< "\n" Mode:
<< "Mode:\n" (default mode) Accept HTTP/2, SPDY and HTTP/1.1 over SSL/TLS.
<< " (default mode) Accept HTTP/2.0, SPDY and HTTP/1.1 over\n" If --frontend-no-tls is used, accept HTTP/2 and
<< " SSL/TLS. If --frontend-no-tls is used,\n" HTTP/1.1. The incoming HTTP/1.1 connection can
<< " accept HTTP/2.0 and HTTP/1.1. The incoming\n" be upgraded to HTTP/2 through HTTP Upgrade. The
<< " HTTP/1.1 connection can be upgraded to\n" protocol to the backend is HTTP/1.1.
<< " HTTP/2.0 through HTTP Upgrade.\n" -s, --http2-proxy Like default mode, but enable secure proxy mode.
<< " The protocol to the backend is HTTP/1.1.\n" --http2-bridge Like default mode, but communicate with the
<< " -s, --http2-proxy Like default mode, but enable secure proxy mode.\n" backend in HTTP/2 over SSL/TLS. Thus the
<< " --http2-bridge Like default mode, but communicate with the\n" incoming all connections are converted to HTTP/2
<< " backend in HTTP/2.0 over SSL/TLS. Thus the\n" connection and relayed to the backend. See
<< " incoming all connections are converted\n" --backend-http-proxy-uri option if you are behind
<< " to HTTP/2.0 connection and relayed to\n" the proxy and want to connect to the outside
<< " the backend. See --backend-http-proxy-uri\n" HTTP/2 proxy.
<< " option if you are behind the proxy and want\n" --client Accept HTTP/2 and HTTP/1.1 without SSL/TLS. The
<< " to connect to the outside HTTP/2.0 proxy.\n" incoming HTTP/1.1 connection can be upgraded to
<< " --client Accept HTTP/2.0 and HTTP/1.1 without SSL/TLS.\n" HTTP/2 connection through HTTP Upgrade. The
<< " The incoming HTTP/1.1 connection can be\n" protocol to the backend is HTTP/2. To use
<< " upgraded to HTTP/2.0 connection through\n" nghttpx as a forward proxy, use -p option
<< " HTTP Upgrade.\n" instead.
<< " The protocol to the backend is HTTP/2.0.\n" -p, --client-proxy
<< " To use nghttpx as a forward proxy, use -p\n" Like --client option, but it also requires the
<< " option instead.\n" request path from frontend must be an absolute
<< " -p, --client-proxy Like --client option, but it also requires\n" URI, suitable for use as a forward proxy.
<< " the request path from frontend must be\n"
<< " an absolute URI, suitable for use as a\n" Logging:
<< " forward proxy.\n" -L, --log-level=<LEVEL>
<< "\n" Set the severity level of log output. <LEVEL>
<< "Logging:\n" must be one of INFO, WARNING, ERROR and FATAL.
<< " -L, --log-level=<LEVEL>\n" Default: WARNING
<< " Set the severity level of log output.\n" --accesslog Print simple accesslog to stderr.
<< " INFO, WARNING, ERROR and FATAL.\n" --syslog Send log messages to syslog.
<< " Default: WARNING\n" --syslog-facility=<FACILITY>
<< " --accesslog Print simple accesslog to stderr.\n" Set syslog facility to <FACILITY>.
<< " --syslog Send log messages to syslog.\n" Default: )"
<< " --syslog-facility=<FACILITY>\n" << str_syslog_facility(get_config()->syslog_facility) << R"(
<< " Set syslog facility.\n"
<< " Default: " Misc:
<< str_syslog_facility(get_config()->syslog_facility) << "\n" --add-x-forwarded-for
<< "\n" Append X-Forwarded-For header field to the
<< "Misc:\n" downstream request.
<< " --add-x-forwarded-for\n" --no-via Don't append to Via header field. If Via header
<< " Append X-Forwarded-For header field to the\n" field is received, it is left unaltered.
<< " downstream request.\n" --frontend-http2-dump-request-header=<PATH>
<< " --no-via Don't append to Via header field. If Via\n" Dumps request headers received by HTTP/2 frontend
<< " header field is received, it is left\n" to the file denoted in <PATH>. The output is
<< " unaltered.\n" done in HTTP/1 header field format and each
<< " --frontend-http2-dump-request-header=<PATH>\n" header block is followed by an empty line. This
<< " Dumps request headers received by HTTP/2.0\n" option is not thread safe and MUST NOT be used
<< " frontend to the file denoted in PATH.\n" with option -n<N>, where <N> >= 2.
<< " The output is done in HTTP/1 header field\n" --frontend-http2-dump-response-header=<PATH>
<< " format and each header block is followed by\n" Dumps response headers sent from HTTP/2 frontend
<< " an empty line.\n" to the file denoted in <PATH>. The output is
<< " This option is not thread safe and MUST NOT\n" done in HTTP/1 header field format and each
<< " be used with option -n=N, where N >= 2.\n" header block is followed by an empty line. This
<< " --frontend-http2-dump-response-header=<PATH>\n" option is not thread safe and MUST NOT be used
<< " Dumps response headers sent from HTTP/2.0\n" with option -n<N>, where <N> >= 2.
<< " frontend to the file denoted in PATH.\n" -o, --frontend-frame-debug
<< " The output is done in HTTP/1 header field\n" Print HTTP/2 frames in frontend to stderr. This
<< " format and each header block is followed by\n" option is not thread safe and MUST NOT be used
<< " an empty line.\n" with option -n=N, where N >= 2.
<< " This option is not thread safe and MUST NOT\n" -D, --daemon
<< " be used with option -n=N, where N >= 2.\n" Run in a background. If -D is used, the current
<< " -o, --frontend-frame-debug\n" working directory is changed to '/'.
<< " Print HTTP/2 frames in frontend to stderr.\n" --pid-file=<PATH> Set path to save PID of this program.
<< " This option is not thread safe and MUST NOT\n" --user=<USER> Run this program as <USER>. This option is
<< " be used with option -n=N, where N >= 2.\n" intended to be used to drop root privileges.
<< " -D, --daemon Run in a background. If -D is used, the\n" --conf=<PATH> Load configuration from <PATH>.
<< " current working directory is changed to '/'.\n" Default: )"
<< " --pid-file=<PATH> Set path to save PID of this program.\n" << get_config()->conf_path << R"(
<< " --user=<USER> Run this program as USER. This option is\n" -v, --version Print version and exit.
<< " intended to be used to drop root privileges.\n" -h, --help Print this help and exit.)"
<< " --conf=<PATH> Load configuration from PATH.\n"
<< " Default: "
<< get_config()->conf_path << "\n"
<< " -v, --version Print version and exit.\n"
<< " -h, --help Print this help and exit.\n"
<< std::endl; << std::endl;
} }
} // namespace } // namespace
......
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