Squashed 'external/toxcore/c-toxcore/' content from commit 67badf69

git-subtree-dir: external/toxcore/c-toxcore git-subtree-split: 67badf69416a74e74f6d7eb51dd96f37282b8455
2023-07-25 11:53:09 +02:00
commit 227425b90e
467 changed files with 116591 additions and 0 deletions
--- a/other/bootstrap_daemon/src/command_line_arguments.c
+++ b/other/bootstrap_daemon/src/command_line_arguments.c
@@ -0,0 +1,134 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright © 2016-2018 The TokTok team.
+ * Copyright © 2015-2016 Tox project.
+ */
+
+/*
+ * Tox DHT bootstrap daemon.
+ * Command line argument handling.
+ */
+#include "command_line_arguments.h"
+
+#include "global.h"
+
+#include "../../../toxcore/ccompat.h"
+
+#include <getopt.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+
+/**
+ * Prints --help message
+ */
+static void print_help(void)
+{
+    // 2 space ident
+    // make sure all lines fit into 80 columns
+    // make sure options are listed in alphabetical order
+    log_write(LOG_LEVEL_INFO,
+              "Usage: tox-bootstrapd [OPTION]... --config=FILE_PATH\n"
+              "\n"
+              "Options:\n"
+              "  --config=FILE_PATH     Specify path to the config file.\n"
+              "                         This is a required option.\n"
+              "                         Set FILE_PATH to a path to an empty file in order to\n"
+              "                         use default settings.\n"
+              "  --foreground           Run the daemon in foreground. The daemon won't fork\n"
+              "                         (detach from the terminal) and won't use the PID file.\n"
+              "  --help                 Print this help message.\n"
+              "  --log-backend=BACKEND  Specify which logging backend to use.\n"
+              "                         Valid BACKEND values (case sensetive):\n"
+              "                           syslog Writes log messages to syslog.\n"
+              "                                  Default option when no --log-backend is\n"
+              "                                  specified.\n"
+              "                           stdout Writes log messages to stdout/stderr.\n"
+              "  --version              Print version information.\n");
+}
+
+void handle_command_line_arguments(int argc, char *argv[], char **cfg_file_path, LOG_BACKEND *log_backend,
+                                   bool *run_in_foreground)
+{
+    if (argc < 2) {
+        log_write(LOG_LEVEL_ERROR, "Error: No arguments provided.\n\n");
+        print_help();
+        exit(1);
+    }
+
+    opterr = 0;
+
+    static const struct option long_options[] = {
+        {"config",      required_argument, nullptr, 'c'}, // required option
+        {"foreground",  no_argument,       nullptr, 'f'},
+        {"help",        no_argument,       nullptr, 'h'},
+        {"log-backend", required_argument, nullptr, 'l'}, // optional, defaults to syslog
+        {"version",     no_argument,       nullptr, 'v'},
+        {nullptr,       0,                 nullptr,  0 }
+    };
+
+    bool cfg_file_path_set = false;
+    bool log_backend_set   = false;
+
+    *run_in_foreground = false;
+
+    int opt;
+
+    while ((opt = getopt_long(argc, argv, ":", long_options, nullptr)) != -1) {
+
+        switch (opt) {
+
+            case 'c':
+                *cfg_file_path = optarg;
+                cfg_file_path_set = true;
+                break;
+
+            case 'f':
+                *run_in_foreground = true;
+                break;
+
+            case 'h':
+                print_help();
+                exit(0);
+
+            case 'l':
+                if (strcmp(optarg, "syslog") == 0) {
+                    *log_backend = LOG_BACKEND_SYSLOG;
+                    log_backend_set = true;
+                } else if (strcmp(optarg, "stdout") == 0) {
+                    *log_backend = LOG_BACKEND_STDOUT;
+                    log_backend_set = true;
+                } else {
+                    log_write(LOG_LEVEL_ERROR, "Error: Invalid BACKEND value for --log-backend option passed: %s\n\n", optarg);
+                    print_help();
+                    exit(1);
+                }
+
+                break;
+
+            case 'v':
+                log_write(LOG_LEVEL_INFO, "Version: %lu\n", DAEMON_VERSION_NUMBER);
+                exit(0);
+
+            case '?':
+                log_write(LOG_LEVEL_ERROR, "Error: Unrecognized option %s\n\n", argv[optind - 1]);
+                print_help();
+                exit(1);
+
+            case ':':
+                log_write(LOG_LEVEL_ERROR, "Error: No argument provided for option %s\n\n", argv[optind - 1]);
+                print_help();
+                exit(1);
+        }
+    }
+
+    if (!log_backend_set) {
+        *log_backend = LOG_BACKEND_SYSLOG;
+    }
+
+    if (!cfg_file_path_set) {
+        log_write(LOG_LEVEL_ERROR, "Error: The required --config option wasn't specified\n\n");
+        print_help();
+        exit(1);
+    }
+}