#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
+#include <errno.h>
+#include <getopt.h>
+#include <pthread.h>
+#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
-#include <unistd.h>
-#include <signal.h>
-#include <syslog.h>
-#include <pthread.h>
#include <string.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <sys/time.h>
-#include <sys/resource.h>
#include <sys/mman.h>
#include <sys/prctl.h>
+#include <sys/wait.h>
+#include <syslog.h>
+#include <unistd.h>
+#include "appconfig.h"
#include "common.h"
-#include "log.h"
#include "daemon.h"
-#include "web_server.h"
+#include "log.h"
#include "popen.h"
-#include "appconfig.h"
-#include "web_client.h"
#include "rrd.h"
#include "rrd2json.h"
+#include "web_client.h"
+#include "web_server.h"
#include "unit_test.h"
-#include "plugins_d.h"
-#include "plugin_idlejitter.h"
-#include "plugin_tc.h"
#include "plugin_checks.h"
-#include "plugin_proc.h"
+#include "plugin_idlejitter.h"
#include "plugin_nfacct.h"
#include "registry.h"
+#include "plugin_proc.h"
+#include "plugin_tc.h"
+#include "plugins_d.h"
#include "main.h"
debug(D_EXIT, "All threads/childs stopped.");
}
+struct option_def options[] = {
+ // opt description arg name default value
+ {'c', "Load alternate configuration file", "config_file", CONFIG_DIR "/" CONFIG_FILENAME},
+ {'D', "Disable fork into background", NULL, NULL},
+ {'h', "Display help message", NULL, NULL},
+ {'P', "File to save a pid while running", "FILE", NULL},
+ {'p', "Port to listen. Can be from 1 to 65535.", "port_number", "19999"},
+ {'s', "Path to access host /proc and /sys when running in a container.", "PATH", NULL},
+ {'t', "The frequency in seconds, for data collection. \
+ Same as 'update every' config file option.", "seconds", "1"},
+ {'l', "The number of entries the netdata daemon will keep in memory \
+ for each chart dimension. Same as 'history config file option.", "lines_to_save", NULL},
+ {'u', "System username to run as.", "username", "netdata"},
+ {'v', "Version of the program", NULL, NULL},
+ {'W', "vendor options.", "stacksize=<size>|unittest|debug_flag", NULL},
+};
+
+void help(int exitcode) {
+ FILE *stream;
+ if(exitcode == 0)
+ stream = stdout;
+ else
+ stream = stderr;
+
+ int num_opts = sizeof(options) / sizeof(struct option_def);
+ int i;
+ int max_len_arg = 0;
+
+ // Compute maximum argument length
+ for( i = 0; i < num_opts; i++ ) {
+ if(options[i].arg_name) {
+ int len_arg = strlen(options[i].arg_name);
+ if(len_arg > max_len_arg) max_len_arg = len_arg;
+ }
+ }
+
+ fprintf(stream, "SYNOPSIS: netdata [options]\n");
+ fprintf(stream, "\n");
+ fprintf(stream, "Options:\n");
+
+ // Output options description.
+ for( i = 0; i < num_opts; i++ ) {
+ fprintf(stream, " -%c %-*s %s", options[i].val, max_len_arg, options[i].arg_name ? options[i].arg_name : "", options[i].description);
+ if(options[i].default_value) {
+ fprintf(stream, " Default: %s\n", options[i].default_value);
+ } else {
+ fprintf(stream, "\n");
+ }
+ }
+
+ fflush(stream);
+ exit(exitcode);
+}
+
int main(int argc, char **argv)
{
// set the name for logging
program_name = "netdata";
- // parse the arguments
- for(i = 1; i < argc ; i++) {
- if(strcmp(argv[i], "-c") == 0 && (i+1) < argc) {
- if(load_config(argv[i+1], 1) != 1) {
- error("Cannot load configuration file %s.", argv[i+1]);
- exit(1);
+ // parse command line.
+
+ // parse depercated options
+ // TODO: Remove this block with the next major release.
+ {
+ void remove_option(int opt_index, int *argc, char **argv) {
+ int i = opt_index;
+ // remove the options.
+ do {
+ *argc = *argc - 1;
+ for(i = opt_index; i < *argc; i++) {
+ argv[i] = argv[i+1];
+ }
+ i = opt_index;
+ } while(argv[i][0] != '-' && opt_index >= *argc);
+ }
+
+ i = 1;
+ while(i < argc) {
+ if(strcmp(argv[i], "-pidfile") == 0 && (i+1) < argc) {
+ strncpyz(pidfile, argv[i+1], FILENAME_MAX);
+ fprintf(stderr, "%s: deprecate option -- %s -- please use -P instead.\n", argv[0], argv[i]);
+ remove_option(i, &argc, argv);
}
- else {
- debug(D_OPTIONS, "Configuration loaded from %s.", argv[i+1]);
- config_loaded = 1;
+ else if(strcmp(argv[i], "-nodaemon") == 0 || strcmp(argv[i], "-nd") == 0) {
+ dont_fork = 1;
+ fprintf(stderr, "%s: deprecate option -- %s -- please use -D instead.\n ", argv[0], argv[i]);
+ remove_option(i, &argc, argv);
}
- i++;
- }
- else if(strcmp(argv[i], "-df") == 0 && (i+1) < argc) { config_set("global", "debug flags", argv[i+1]); debug_flags = strtoull(argv[i+1], NULL, 0); i++; }
- else if(strcmp(argv[i], "-p") == 0 && (i+1) < argc) { config_set("global", "port", argv[i+1]); i++; }
- else if(strcmp(argv[i], "-u") == 0 && (i+1) < argc) { config_set("global", "run as user", argv[i+1]); i++; }
- else if(strcmp(argv[i], "-l") == 0 && (i+1) < argc) { config_set("global", "history", argv[i+1]); i++; }
- else if(strcmp(argv[i], "-t") == 0 && (i+1) < argc) { config_set("global", "update every", argv[i+1]); i++; }
- else if(strcmp(argv[i], "-ch") == 0 && (i+1) < argc) { config_set("global", "host access prefix", argv[i+1]); i++; }
- else if(strcmp(argv[i], "-stacksize") == 0 && (i+1) < argc) { config_set("global", "pthread stack size", argv[i+1]); i++; }
- else if(strcmp(argv[i], "-nodaemon") == 0 || strcmp(argv[i], "-nd") == 0) dont_fork = 1;
- else if(strcmp(argv[i], "-pidfile") == 0 && (i+1) < argc) {
- i++;
- strncpyz(pidfile, argv[i], FILENAME_MAX);
- }
- else if(strcmp(argv[i], "--unittest") == 0) {
- rrd_update_every = 1;
- if(run_all_mockup_tests()) exit(1);
- if(unit_test_storage()) exit(1);
- fprintf(stderr, "\n\nALL TESTS PASSED\n\n");
- exit(0);
+ else if(strcmp(argv[i], "-ch") == 0 && (i+1) < argc) {
+ config_set("global", "host access prefix", argv[i+1]);
+ fprintf(stderr, "%s: deprecate option -- %s -- please use -s instead.\n", argv[0], argv[i]);
+ remove_option(i, &argc, argv);
+ }
+ else i++;
}
- else {
- fprintf(stderr, "Cannot understand option '%s'.\n", argv[i]);
- fprintf(stderr, "\nUSAGE: %s [-d] [-l LINES_TO_SAVE] [-u UPDATE_TIMER] [-p LISTEN_PORT] [-df debug flags].\n\n", argv[0]);
- fprintf(stderr, " -c CONFIG FILE the configuration file to load. Default: %s.\n", CONFIG_DIR "/" CONFIG_FILENAME);
- fprintf(stderr, " -l LINES_TO_SAVE can be from 5 to %d lines in JSON data. Default: %d.\n", RRD_HISTORY_ENTRIES_MAX, RRD_DEFAULT_HISTORY_ENTRIES);
- fprintf(stderr, " -t UPDATE_TIMER can be from 1 to %d seconds. Default: %d.\n", UPDATE_EVERY_MAX, UPDATE_EVERY);
- fprintf(stderr, " -p LISTEN_PORT can be from 1 to %d. Default: %d.\n", 65535, LISTEN_PORT);
- fprintf(stderr, " -u USERNAME can be any system username to run as. Default: none.\n");
- fprintf(stderr, " -ch path to access host /proc and /sys when running in a container. Default: empty.\n");
- fprintf(stderr, " -nd or -nodeamon to disable forking in the background. Default: unset.\n");
- fprintf(stderr, " -df FLAGS debug options. Default: 0x%08llx.\n", debug_flags);
- fprintf(stderr, " -stacksize BYTES to overwrite the pthread stack size.\n");
- fprintf(stderr, " -pidfile FILENAME to save a pid while running.\n");
- exit(1);
+ }
+
+ // parse options
+ {
+ int num_opts = sizeof(options) / sizeof(struct option_def);
+ char optstring[(num_opts * 2) + 1];
+
+ int string_i = 0;
+ for( i = 0; i < num_opts; i++ ) {
+ optstring[string_i] = options[i].val;
+ string_i++;
+ if(options[i].arg_name) {
+ optstring[string_i] = ':';
+ string_i++;
+ }
}
+
+ int opt;
+ while( (opt = getopt(argc, argv, optstring)) != -1 ) {
+ switch(opt) {
+ case 'c':
+ if(load_config(optarg, 1) != 1) {
+ error("Cannot load configuration file %s.", optarg);
+ exit(1);
+ }
+ else {
+ debug(D_OPTIONS, "Configuration loaded from %s.", optarg);
+ config_loaded = 1;
+ }
+ break;
+ case 'D':
+ dont_fork = 1;
+ break;
+ case 'h':
+ help(0);
+ break;
+ case 'P':
+ strncpy(pidfile, optarg, FILENAME_MAX);
+ pidfile[FILENAME_MAX] = '\0';
+ break;
+ case 'p':
+ config_set("global", "port", optarg);
+ break;
+ case 's':
+ config_set("global", "host access prefix", optarg);
+ break;
+ case 't':
+ config_set("global", "update every", optarg);
+ break;
+ case 'u':
+ config_set("global", "run as user", optarg);
+ break;
+ case 'v':
+ // TODO: Outsource version to makefile which can compute version from git.
+ printf("netdata 1.1.0\n");
+ return 0;
+ break;
+ case 'l':
+ config_set("global", "history", optarg);
+ break;
+ case 'W':
+ {
+ char* stacksize = "stacksize=";
+ char* debug_flags_string = "debug_flags=";
+ if(strcmp(optarg, "unittest") == 0) {
+ rrd_update_every = 1;
+ if(run_all_mockup_tests()) exit(1);
+ if(unit_test_storage()) exit(1);
+ fprintf(stderr, "\n\nALL TESTS PASSED\n\n");
+ exit(0);
+ } else if(strncmp(optarg, stacksize, strlen(stacksize)) == 0) {
+ optarg += strlen(stacksize);
+ config_set("global", "pthread stack size", optarg);
+ } else if(strncmp(optarg, debug_flags_string, strlen(debug_flags_string)) == 0) {
+ optarg += strlen(debug_flags_string);
+ config_set("global", "debug flags", optarg);
+ debug_flags = strtoull(optarg, NULL, 0);
+ }
+ }
+ break;
+ default: /* ? */
+ help(1);
+ break;
+ }
+ }
}
if(!config_loaded) load_config(NULL, 0);