diff options
Diffstat (limited to 'src/danetool-options.c')
| -rw-r--r-- | src/danetool-options.c | 428 |
1 files changed, 428 insertions, 0 deletions
diff --git a/src/danetool-options.c b/src/danetool-options.c new file mode 100644 index 0000000..919250b --- /dev/null +++ b/src/danetool-options.c @@ -0,0 +1,428 @@ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "danetool-options.h" +#include <errno.h> +#include <error.h> +#include <getopt.h> +#include <limits.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> +#ifndef _WIN32 +#include <unistd.h> +#endif /* !_WIN32 */ +#include <limits.h> + +struct danetool_options danetool_options; + +static long +parse_number (const char *arg) +{ + char *endptr = NULL; + errno = 0; + long result; + + if (strncmp (arg, "0x", 2) == 0) + result = strtol (arg + 2, &endptr, 16); + else if (strncmp (arg, "0", 1) == 0 + && strspn (arg, "012345678") == strlen (optarg)) + result = strtol (arg + 1, &endptr, 8); + else + result = strtol (arg, &endptr, 10); + + if (errno != 0 || (endptr && *endptr != '\0')) + error (EXIT_FAILURE, errno, "'%s' is not a recognizable number.", + arg); + + return result; +} + +/* Long options. */ +static const struct option long_options[] = +{ + { "debug", required_argument, 0, 'd' }, + { "verbose", no_argument, 0, 'V' }, + { "outfile", required_argument, 0, CHAR_MAX + 1 }, + { "load-pubkey", required_argument, 0, CHAR_MAX + 2 }, + { "load-certificate", required_argument, 0, CHAR_MAX + 3 }, + { "dlv", required_argument, 0, CHAR_MAX + 4 }, + { "hash", required_argument, 0, CHAR_MAX + 5 }, + { "check", required_argument, 0, CHAR_MAX + 6 }, + { "check-ee", no_argument, 0, CHAR_MAX + 7 }, + { "check-ca", no_argument, 0, CHAR_MAX + 8 }, + { "tlsa-rr", no_argument, 0, CHAR_MAX + 9 }, + { "host", required_argument, 0, CHAR_MAX + 10 }, + { "proto", required_argument, 0, CHAR_MAX + 11 }, + { "port", required_argument, 0, CHAR_MAX + 12 }, + { "starttls-proto", required_argument, 0, CHAR_MAX + 14 }, + { "app-proto", required_argument, 0, CHAR_MAX + 13 }, + { "ca", no_argument, 0, CHAR_MAX + 15 }, + { "x509", no_argument, 0, CHAR_MAX + 16 }, + { "domain", no_argument, 0, CHAR_MAX + 18 }, + { "local", no_argument, 0, CHAR_MAX + 17 }, + { "no-domain", no_argument, 0, CHAR_MAX + 19 }, + { "local-dns", no_argument, 0, CHAR_MAX + 20 }, + { "no-local-dns", no_argument, 0, CHAR_MAX + 21 }, + { "insecure", no_argument, 0, CHAR_MAX + 22 }, + { "inder", no_argument, 0, CHAR_MAX + 23 }, + { "inraw", no_argument, 0, CHAR_MAX + 25 }, + { "no-inder", no_argument, 0, CHAR_MAX + 24 }, + { "print-raw", no_argument, 0, CHAR_MAX + 26 }, + { "no-print-raw", no_argument, 0, CHAR_MAX + 27 }, + { "quiet", no_argument, 0, CHAR_MAX + 28 }, + { "version", optional_argument, 0, 'v' }, + { "help", no_argument, 0, 'h' }, + { "more-help", no_argument, 0, '!' }, + { 0, 0, 0, 0 } + +}; + +int +process_options (int argc, char **argv) +{ + struct danetool_options *opts = &danetool_options; + int opt; + + opts->enabled.domain = true; + while ((opt = getopt_long (argc, argv, "!Vd:hv:", + long_options, NULL)) != EOF) + switch (opt) + { + case '\0': /* Long option. */ + break; + case 'd': + opts->present.debug = true; + opts->arg.debug = optarg; + opts->value.debug = parse_number(optarg); + opts->enabled.debug = true; + break; + case 'V': + opts->present.verbose = true; + opts->enabled.verbose = true; + break; + case CHAR_MAX + 1: /* --outfile */ + opts->present.outfile = true; + opts->arg.outfile = optarg; + opts->enabled.outfile = true; + break; + case CHAR_MAX + 2: /* --load-pubkey */ + opts->present.load_pubkey = true; + opts->arg.load_pubkey = optarg; + opts->enabled.load_pubkey = true; + break; + case CHAR_MAX + 3: /* --load-certificate */ + opts->present.load_certificate = true; + opts->arg.load_certificate = optarg; + opts->enabled.load_certificate = true; + break; + case CHAR_MAX + 4: /* --dlv */ + opts->present.dlv = true; + opts->arg.dlv = optarg; + opts->enabled.dlv = true; + break; + case CHAR_MAX + 5: /* --hash */ + opts->present.hash = true; + opts->arg.hash = optarg; + opts->enabled.hash = true; + break; + case CHAR_MAX + 6: /* --check */ + opts->present.check = true; + opts->arg.check = optarg; + opts->enabled.check = true; + break; + case CHAR_MAX + 7: /* --check-ee */ + opts->present.check_ee = true; + opts->enabled.check_ee = true; + break; + case CHAR_MAX + 8: /* --check-ca */ + opts->present.check_ca = true; + opts->enabled.check_ca = true; + break; + case CHAR_MAX + 9: /* --tlsa-rr */ + opts->present.tlsa_rr = true; + opts->enabled.tlsa_rr = true; + break; + case CHAR_MAX + 10: /* --host */ + opts->present.host = true; + opts->arg.host = optarg; + opts->enabled.host = true; + break; + case CHAR_MAX + 11: /* --proto */ + opts->present.proto = true; + opts->arg.proto = optarg; + opts->enabled.proto = true; + break; + case CHAR_MAX + 12: /* --port */ + opts->present.port = true; + opts->arg.port = optarg; + opts->enabled.port = true; + break; + case CHAR_MAX + 14: /* --starttls-proto */ + case CHAR_MAX + 13: /* --app-proto */ + opts->present.starttls_proto = true; + opts->arg.starttls_proto = optarg; + opts->enabled.starttls_proto = true; + break; + case CHAR_MAX + 15: /* --ca */ + opts->present.ca = true; + opts->enabled.ca = true; + break; + case CHAR_MAX + 16: /* --x509 */ + opts->present.x509 = true; + opts->enabled.x509 = true; + break; + case CHAR_MAX + 18: /* --domain */ + case CHAR_MAX + 17: /* --local */ + opts->present.domain = true; + opts->enabled.domain = true; + break; + case CHAR_MAX + 19: /* --no-domain */ + opts->present.domain = true; + opts->enabled.domain = false; + break; + case CHAR_MAX + 20: /* --local-dns */ + opts->present.local_dns = true; + opts->enabled.local_dns = true; + break; + case CHAR_MAX + 21: /* --no-local-dns */ + opts->present.local_dns = true; + opts->enabled.local_dns = false; + break; + case CHAR_MAX + 22: /* --insecure */ + opts->present.insecure = true; + opts->enabled.insecure = true; + break; + case CHAR_MAX + 23: /* --inder */ + case CHAR_MAX + 25: /* --inraw */ + opts->present.inder = true; + opts->enabled.inder = true; + break; + case CHAR_MAX + 24: /* --no-inder */ + opts->present.inder = true; + opts->enabled.inder = false; + break; + case CHAR_MAX + 26: /* --print-raw */ + opts->present.print_raw = true; + opts->enabled.print_raw = true; + break; + case CHAR_MAX + 27: /* --no-print-raw */ + opts->present.print_raw = true; + opts->enabled.print_raw = false; + break; + case CHAR_MAX + 28: /* --quiet */ + opts->present.quiet = true; + opts->enabled.quiet = true; + break; + case 'v': + opts->present.version = true; + opts->arg.version = optarg; + opts->enabled.version = true; + break; + case 'h': + opts->present.help = true; + opts->enabled.help = true; + break; + case '!': + opts->present.more_help = true; + opts->enabled.more_help = true; + break; + default: + usage (stderr, EXIT_FAILURE); + break; + } + + if (HAVE_OPT(DEBUG) && OPT_VALUE_DEBUG < 0) + { + error (EXIT_FAILURE, 0, "%s option value %d is out of range.", + "debug", opts->value.debug); + } + if (HAVE_OPT(DEBUG) && OPT_VALUE_DEBUG > 9999) + { + error (EXIT_FAILURE, 0, "%s option value %d is out of range", + "debug", opts->value.debug); + } + if (HAVE_OPT(TLSA_RR) && !HAVE_OPT(HOST)) + { + error (EXIT_FAILURE, 0, "%s option requires the %s options", + "tlsa-rr", "host"); + } + if (optind < argc) + { + error (EXIT_FAILURE, 0, "Command line arguments are not allowed."); + } + + + if (HAVE_OPT(HELP)) + { + USAGE(0); + } + + if (HAVE_OPT(MORE_HELP)) +#ifdef _WIN32 + { + USAGE(0); + } +#else /* _WIN32 */ + { + pid_t pid; + int pfds[2]; + + if (pipe (pfds) < 0) + error (EXIT_FAILURE, errno, "pipe"); + + pid = fork (); + if (pid < 0) + error (EXIT_FAILURE, errno, "fork"); + + if (pid == 0) + { + close (pfds[0]); + dup2 (pfds[1], STDOUT_FILENO); + close (pfds[1]); + + usage (stdout, 0); + } + else + { + const char *args[2]; + const char *envvar; + + close (pfds[1]); + dup2 (pfds[0], STDIN_FILENO); + close (pfds[0]); + + envvar = secure_getenv ("PAGER"); + if (!envvar || *envvar == '\0') + args[0] = "more"; + else + args[0] = envvar; + + args[1] = NULL; + + execvp (args[0], (char * const *)args); + + exit (EXIT_FAILURE); + } + } +#endif /* !_WIN32 */ + + if (HAVE_OPT(VERSION)) + { + if (!OPT_ARG_VERSION || !strcmp (OPT_ARG_VERSION, "c")) + { + const char str[] = + "danetool 3.7.9\n" + "Copyright (C) 2000-2021 Free Software Foundation, and others\n" + "This is free software. It is licensed for use, modification and\n" + "redistribution under the terms of the GNU General Public License,\n" + "version 3 or later <http://gnu.org/licenses/gpl.html>\n" + "\n" + "Please send bug reports to: <bugs@gnutls.org> \n"; + fprintf (stdout, "%s", str); + exit(0); + } + else if (!strcmp (OPT_ARG_VERSION, "v")) + { + const char str[] = + "danetool 3.7.9\n"; + fprintf (stdout, "%s", str); + exit(0); + } + else if (!strcmp (OPT_ARG_VERSION, "n")) + { + const char str[] = + "danetool 3.7.9\n" + "Copyright (C) 2000-2021 Free Software Foundation, and others\n" + "This is free software. It is licensed for use, modification and\n" + "redistribution under the terms of the GNU General Public License,\n" + "version 3 or later <http://gnu.org/licenses/gpl.html>\n" + "\n" + "gnutls is free software: you can redistribute it and/or\n" + "modify it under the terms of the GNU General Public License\n" + "as published by the Free Software Foundation,\n" + "either version 3 of the License, or (at your option) any later version.\n" + "\n" + "gnutls is distributed in the hope that it will be useful,\n" + "but WITHOUT ANY WARRANTY; without even the implied warranty\n" + "of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n" + "See the GNU General Public License for more details.\n" + "\n" + "You should have received a copy of the GNU General Public License\n" + "along with this program. If not, see <http://www.gnu.org/licenses/>.\n" + "\n" + "Please send bug reports to: <bugs@gnutls.org> \n"; + fprintf (stdout, "%s", str); + exit(0); + } + else + { + error (EXIT_FAILURE, 0, + "version option argument 'a' invalid. Use:\n" + " 'v' - version only\n" + " 'c' - version and copyright\n" + " 'n' - version and full copyright notice"); + } + } + + return optind; +} + +void +usage (FILE *out, int status) +{ + const char str[] = + "danetool - GnuTLS DANE tool\n" + "Usage: danetool [ -<flag> [<val>] | --<name>[{=| }<val>] ]... \n" + "\n" + "None:\n" + "\n" + " -d, --debug=num Enable debugging\n" + " - it must be in the range:\n" + " 0 to 9999\n" + " -V, --verbose More verbose output\n" + " --outfile=str Output file\n" + " --load-pubkey=str Loads a public key file\n" + " --load-certificate=str Loads a certificate file\n" + " --dlv=str Sets a DLV file\n" + " --hash=str Hash algorithm to use for signing\n" + " --check=str Check a host's DANE TLSA entry\n" + " --check-ee Check only the end-entity's certificate\n" + " --check-ca Check only the CA's certificate\n" + " --tlsa-rr Print the DANE RR data on a certificate or public key\n" + " - requires the option 'host'\n" + " --host=str Specify the hostname to be used in the DANE RR\n" + " --proto=str The protocol set for DANE data (tcp, udp etc.)\n" + " --port=str The port or service to connect to, for DANE data\n" + " --app-proto an alias for the 'starttls-proto' option\n" + " --starttls-proto=str The application protocol to be used to obtain the server's certificate (https, ftp, smtp, imap, ldap, xmpp, lmtp, pop3, nntp, sieve, postgres)\n" + " --ca Whether the provided certificate or public key is a Certificate Authority\n" + " --x509 Use the hash of the X.509 certificate, rather than the public key\n" + " --local an alias for the 'domain' option\n" + " --domain The provided certificate or public key is issued by the local domain\n" + " - enabled by default\n" + " - disabled as '--no-domain'\n" + " --local-dns Use the local DNS server for DNSSEC resolving\n" + " --insecure Do not verify any DNSSEC signature\n" + " --inder Use DER format for input certificates and private keys\n" + " --inraw an alias for the 'inder' option\n" + " --print-raw Print the received DANE data in raw format\n" + " --quiet Suppress several informational messages\n" + "\n" + "Version, usage and configuration options:\n" + "\n" + " -v, --version[=arg] output version information and exit\n" + " -h, --help display extended usage information and exit\n" + " -!, --more-help extended usage information passed thru pager\n" + "\n" + "Options are specified by doubled hyphens and their name or by a single\n" + "hyphen and the flag character.\n" + "\n" + "Tool to generate and check DNS resource records for the DANE protocol.\n" + "\n" + "Please send bug reports to: <bugs@gnutls.org>\n" + "\n"; + fprintf (out, "%s", str); + exit (status); +} |