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Diffstat (limited to 'src/utils/knotc/main.c')
| -rw-r--r-- | src/utils/knotc/main.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/src/utils/knotc/main.c b/src/utils/knotc/main.c new file mode 100644 index 0000000..a1c2e6f --- /dev/null +++ b/src/utils/knotc/main.c @@ -0,0 +1,153 @@ +/* Copyright (C) 2020 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz> + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include <getopt.h> +#include <stdio.h> + +#include "contrib/strtonum.h" +#include "knot/common/log.h" +#include "utils/common/params.h" +#include "utils/knotc/commands.h" +#include "utils/knotc/interactive.h" +#include "utils/knotc/process.h" + +#define PROGRAM_NAME "knotc" +#define SPACE " " +#define DEFAULT_CTL_TIMEOUT 60 + +static void print_help(void) +{ + printf("Usage: %s [parameters] <action> [action_args]\n" + "\n" + "Parameters:\n" + " -c, --config <file> "SPACE"Use a textual configuration file.\n" + " "SPACE" (default %s)\n" + " -C, --confdb <dir> "SPACE"Use a binary configuration database directory.\n" + " "SPACE" (default %s)\n" + " -m, --max-conf-size <MiB>"SPACE"Set maximum size of the configuration database (max 10000 MiB).\n" + " "SPACE" (default %d MiB)\n" + " -s, --socket <path> "SPACE"Use a control UNIX socket path.\n" + " "SPACE" (default %s)\n" + " -t, --timeout <sec> "SPACE"Use a control socket timeout (max 7200 seconds).\n" + " "SPACE" (default %u seconds)\n" + " -b, --blocking "SPACE"Zone event trigger commands wait until the event is finished.\n" + " -f, --force "SPACE"Forced operation. Overrides some checks.\n" + " -v, --verbose "SPACE"Enable debug output.\n" + " -h, --help "SPACE"Print the program help.\n" + " -V, --version "SPACE"Print the program version.\n", + PROGRAM_NAME, CONF_DEFAULT_FILE, CONF_DEFAULT_DBDIR, + CONF_MAPSIZE, RUN_DIR "/knot.sock", DEFAULT_CTL_TIMEOUT); + + print_commands(); +} + +params_t params = { + .max_conf_size = (size_t)CONF_MAPSIZE * 1024 * 1024, + .timeout = DEFAULT_CTL_TIMEOUT * 1000 +}; + +int main(int argc, char **argv) +{ + /* Long options. */ + struct option opts[] = { + { "config", required_argument, NULL, 'c' }, + { "confdb", required_argument, NULL, 'C' }, + { "max-conf-size", required_argument, NULL, 'm' }, + { "socket", required_argument, NULL, 's' }, + { "timeout", required_argument, NULL, 't' }, + { "blocking", no_argument, NULL, 'b' }, + { "force", no_argument, NULL, 'f' }, + { "verbose", no_argument, NULL, 'v' }, + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, 'V' }, + { NULL } + }; + + /* Set the time zone. */ + tzset(); + + /* Parse command line arguments */ + int opt = 0; + while ((opt = getopt_long(argc, argv, "+c:C:m:s:t:bfvhV", opts, NULL)) != -1) { + switch (opt) { + case 'c': + params.config = optarg; + break; + case 'C': + params.confdb = optarg; + break; + case 'm': + if (str_to_size(optarg, ¶ms.max_conf_size, 1, 10000) != KNOT_EOK) { + print_help(); + return EXIT_FAILURE; + } + /* Convert to bytes. */ + params.max_conf_size *= 1024 * 1024; + break; + case 's': + params.socket = optarg; + break; + case 't': + if (str_to_int(optarg, ¶ms.timeout, 0, 7200) != KNOT_EOK) { + print_help(); + return EXIT_FAILURE; + } + /* Convert to milliseconds. */ + params.timeout *= 1000; + break; + case 'b': + params.blocking = true; + break; + case 'f': + params.force = true; + break; + case 'v': + params.verbose = true; + break; + case 'h': + print_help(); + return EXIT_SUCCESS; + case 'V': + print_version(PROGRAM_NAME); + return EXIT_SUCCESS; + default: + print_help(); + return EXIT_FAILURE; + } + } + + /* Set up simplified logging just to stdout/stderr. */ + log_init(); + log_levels_set(LOG_TARGET_STDOUT, LOG_SOURCE_ANY, + LOG_MASK(LOG_INFO) | LOG_MASK(LOG_NOTICE)); + log_levels_set(LOG_TARGET_STDERR, LOG_SOURCE_ANY, LOG_UPTO(LOG_WARNING)); + log_levels_set(LOG_TARGET_SYSLOG, LOG_SOURCE_ANY, 0); + log_flag_set(LOG_FLAG_NOTIMESTAMP | LOG_FLAG_NOINFO); + if (params.verbose) { + log_levels_add(LOG_TARGET_STDOUT, LOG_SOURCE_ANY, LOG_MASK(LOG_DEBUG)); + } + + int ret; + if (argc - optind < 1) { + ret = interactive_loop(¶ms); + } else { + ret = process_cmd(argc - optind, (const char **)argv + optind, ¶ms); + } + + log_close(); + + return (ret == KNOT_EOK) ? EXIT_SUCCESS : EXIT_FAILURE; +} |