diff options
Diffstat (limited to 'hicn-light/src/hicn/cli/hicnc.c')
| -rw-r--r-- | hicn-light/src/hicn/cli/hicnc.c | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/hicn-light/src/hicn/cli/hicnc.c b/hicn-light/src/hicn/cli/hicnc.c new file mode 100644 index 000000000..ed8d4ed97 --- /dev/null +++ b/hicn-light/src/hicn/cli/hicnc.c @@ -0,0 +1,237 @@ +/* + * Copyright (c) 2021 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <limits.h> // LONG_MAX, LONG_MIN +#include <signal.h> +#include <hicn/ctrl.h> + +#ifndef _WIN32 +#include <getopt.h> +#endif + +#include "color.h" +#include <hicn/ctrl/parse.h> +#include <hicn/ctrl/hicn-light.h> +#include <hicn/util/log.h> +#include <hicn/util/sstrncpy.h> + +#define PORT 9695 + +/* + * Duplicated from hicn_light_ng_api.c while is only available as a module in + * libhicnctrl + */ +const char *command_type_str[] = { +#define _(l, u) [COMMAND_TYPE_##u] = STRINGIZE(u), + foreach_command_type +#undef _ +}; + +static struct option longFormOptions[] = {{"help", no_argument, 0, 'h'}, + {"server", required_argument, 0, 'S'}, + {"port", required_argument, 0, 'P'}, + {0, 0, 0, 0}}; + +static void usage(char *prog) { + printf("%s: portable hICN forwarder\n", prog); + printf("\n"); + printf("Usage: %s COMMAND [PARAMETERS]\n", prog); + printf("\n"); + printf(" %s -h This help screen.\n", prog); + printf(" %s help Obtain a list of available commands.\n", prog); + printf("\n"); +} + +static bool stop = false; +void signal_handler(int sig) { + fprintf(stderr, "Received ^C... quitting !\n"); + stop = true; +} + +int main(int argc, char *const *argv) { + log_conf.log_level = LOG_INFO; + + // Handle termination signal + struct sigaction sa; + memset(&sa, 0, sizeof(sa)); + sa.sa_handler = signal_handler; + sigaction(SIGINT, &sa, NULL); + + /* Parse commandline */ + char *server_ip = NULL; + uint16_t server_port = 0; + + for (;;) { + // getopt_long stores the option index here. + int optind = 0; + + int c = getopt_long(argc, argv, "dhS:P:", longFormOptions, &optind); + if (c == -1) break; + + switch (c) { + case 'd': + log_conf.log_level = LOG_DEBUG; + break; + case 'S': + server_ip = optarg; + break; + + case 'P': { + char *endptr; + long val = strtol(optarg, &endptr, 10); + + errno = 0; /* To distinguish success/failure after call */ + + if ((errno == ERANGE && (val == LONG_MAX || val == LONG_MIN)) || + (errno != 0 && val == 0)) { + perror("strtol"); + exit(EXIT_FAILURE); + } + + if (endptr == optarg) { + fprintf(stderr, "No digits were found.\n"); + exit(EXIT_FAILURE); + } + + if (*endptr != '\0') { + fprintf(stderr, "Spurious characters after number: %s.\n", endptr); + exit(EXIT_FAILURE); + } + + if ((val < 1) || (val > 65535)) { + fprintf(stderr, "Invalid port number: %ld.\n", val); + exit(EXIT_FAILURE); + } + + server_port = val; + break; + } + + case 'h': + usage(argv[0]); + exit(EXIT_SUCCESS); + + default: + fprintf(stderr, "Invalid argument.\n"); + usage(argv[0]); + exit(EXIT_FAILURE); + } + } + + /* Parse */ + char *param = argv[optind]; + for (; optind < argc - 1; optind++) { + char *arg = argv[optind]; + arg[strlen(arg)] = ' '; + } + + if (!param) { + usage(argv[0]); + goto ERR_PARAM; + } + + if (strncmp(param, "help", 4) == 0) { + if (help(param) < 0) { + usage(argv[0]); + exit(EXIT_FAILURE); + } + exit(EXIT_SUCCESS); + } + + hc_command_t command = {}; + if (parse(param, &command) < 0) { + fprintf(stderr, "Error parsing command : '%s'\n", param); + goto ERR_PARSE; + } + + hc_sock_t *s; + if (server_ip) { + if (server_port == 0) server_port = PORT; +#define BUFSIZE 255 + char url[BUFSIZE]; + snprintf(url, BUFSIZE, "tcp://%s:%d/", server_ip, server_port); + s = hc_sock_create(FORWARDER_TYPE_HICNLIGHT, url); + } else { + s = hc_sock_create(FORWARDER_TYPE_HICNLIGHT, NULL); + } + if (!s) { + fprintf(stderr, "Could not create socket.\n"); + goto ERR_SOCKET; + } + + if (hc_sock_connect(s) < 0) { + fprintf(stderr, "Could not establish connection to forwarder.\n"); + goto ERR_CONNECT; + } + + if (!IS_VALID_OBJECT_TYPE(command.object_type) || + !IS_VALID_ACTION(command.action)) { + fprintf(stderr, "Unsupported command"); + goto ERR_PARAM; + } + + int rc = UNSUPPORTED_CMD_ERROR; + hc_data_t *data = NULL; + + rc = hc_execute(s, command.action, command.object_type, &command.object, + &data); + + if (rc < 0) { + switch (rc) { + case INPUT_ERROR: + ERROR("Wrong input parameters"); + break; + case UNSUPPORTED_CMD_ERROR: + ERROR("Unsupported command"); + break; + default: + ERROR("Error executing command"); + break; + } + goto ERR_COMMAND; + } + + if (!data) goto ERR_QUERY; + if (!hc_data_get_result(data)) goto ERR_DATA; + + if (command.action == ACTION_LIST) { + char buf[MAXSZ_HC_OBJECT]; + hc_data_foreach(data, obj, { + rc = hc_object_snprintf(buf, MAXSZ_HC_OBJECT, command.object_type, obj); + if (rc < 0) + WARN("Display error"); + else if (rc >= MAXSZ_HC_OBJECT) + WARN("Output truncated"); + else + printf("%s\n", buf); + }); + } + + hc_data_free(data); + hc_sock_free(s); + return EXIT_SUCCESS; + +ERR_DATA: + hc_data_free(data); +ERR_QUERY: +ERR_COMMAND: +ERR_CONNECT: + hc_sock_free(s); +ERR_SOCKET: +ERR_PARSE: +ERR_PARAM: + ERROR("Error"); + return EXIT_FAILURE; +} |