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cmdline.c

/*
  File autogenerated by gengetopt version 2.22
  generated with the following command:
  /usr/local/bin/gengetopt --input ./cmdline.sh 

  The developers of gengetopt consider the fixed text that goes in all
  gengetopt output files to be in the public domain:
  we make no copyright claims on it.
*/

/* If we use autoconf.  */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "getopt.h"

#include "cmdline.h"

const char *gengetopt_args_info_purpose = "Purpose:\n  The Ganglia Monitoring Daemon (gmond) listens to the cluster\n  message channel, stores the data in-memory and when requested\n  will output an XML description of the state of the cluster";

const char *gengetopt_args_info_usage = "Usage: gmond [OPTIONS]...";

const char *gengetopt_args_info_description = "";

const char *gengetopt_args_info_help[] = {
  "  -h, --help             Print help and exit",
  "  -V, --version          Print version and exit",
  "  -c, --conf=STRING      Location of gmond configuration file  \n                           (default='/etc/ganglia/gmond.conf')",
  "  -l, --location=STRING  Location of this host in the cluster \n                           'rack,rank,plane'.  (default='0,0,0')",
  "  -d, --debug=INT        Debug level. If greater than zero, daemon will stay in \n                           foreground.  (default='0')",
  "  -f, --foreground       Run in foreground (don't daemonize)  (default=off)",
  "  -t, --default_config   Print the default configuration to stdout and exit  \n                           (default=off)",
  "  -m, --metrics          Print the list of metrics this gmond supports  \n                           (default=off)",
  "  -b, --bandwidth        Calculate minimum bandwidth use for configuration  \n                           (default=off)",
  "  -r, --convert=STRING   Convert a 2.5.x configuration file to the new 3.x \n                           format",
  "  -p, --pid-file=STRING  Write process-id to file",
    0
};

typedef enum {ARG_NO
  , ARG_FLAG
  , ARG_STRING
  , ARG_INT
} cmdline_parser_arg_type;

static
void clear_given (struct gengetopt_args_info *args_info);
static
void clear_args (struct gengetopt_args_info *args_info);

static int
cmdline_parser_internal (int argc, char * const *argv, struct gengetopt_args_info *args_info,
                        struct cmdline_parser_params *params, const char *additional_error);


static char *
gengetopt_strdup (const char *s);

static
void clear_given (struct gengetopt_args_info *args_info)
{
  args_info->help_given = 0 ;
  args_info->version_given = 0 ;
  args_info->conf_given = 0 ;
  args_info->location_given = 0 ;
  args_info->debug_given = 0 ;
  args_info->foreground_given = 0 ;
  args_info->default_config_given = 0 ;
  args_info->metrics_given = 0 ;
  args_info->bandwidth_given = 0 ;
  args_info->convert_given = 0 ;
  args_info->pid_file_given = 0 ;
}

static
void clear_args (struct gengetopt_args_info *args_info)
{
  args_info->conf_arg = gengetopt_strdup ("/etc/ganglia/gmond.conf");
  args_info->conf_orig = NULL;
  args_info->location_arg = gengetopt_strdup ("0,0,0");
  args_info->location_orig = NULL;
  args_info->debug_arg = 0;
  args_info->debug_orig = NULL;
  args_info->foreground_flag = 0;
  args_info->default_config_flag = 0;
  args_info->metrics_flag = 0;
  args_info->bandwidth_flag = 0;
  args_info->convert_arg = NULL;
  args_info->convert_orig = NULL;
  args_info->pid_file_arg = NULL;
  args_info->pid_file_orig = NULL;
  
}

static
void init_args_info(struct gengetopt_args_info *args_info)
{


  args_info->help_help = gengetopt_args_info_help[0] ;
  args_info->version_help = gengetopt_args_info_help[1] ;
  args_info->conf_help = gengetopt_args_info_help[2] ;
  args_info->location_help = gengetopt_args_info_help[3] ;
  args_info->debug_help = gengetopt_args_info_help[4] ;
  args_info->foreground_help = gengetopt_args_info_help[5] ;
  args_info->default_config_help = gengetopt_args_info_help[6] ;
  args_info->metrics_help = gengetopt_args_info_help[7] ;
  args_info->bandwidth_help = gengetopt_args_info_help[8] ;
  args_info->convert_help = gengetopt_args_info_help[9] ;
  args_info->pid_file_help = gengetopt_args_info_help[10] ;
  
}

void
cmdline_parser_print_version (void)
{
  printf ("%s %s\n", CMDLINE_PARSER_PACKAGE, CMDLINE_PARSER_VERSION);
}

static void print_help_common(void) {
  cmdline_parser_print_version ();

  if (strlen(gengetopt_args_info_purpose) > 0)
    printf("\n%s\n", gengetopt_args_info_purpose);

  if (strlen(gengetopt_args_info_usage) > 0)
    printf("\n%s\n", gengetopt_args_info_usage);

  printf("\n");

  if (strlen(gengetopt_args_info_description) > 0)
    printf("%s\n", gengetopt_args_info_description);
}

void
cmdline_parser_print_help (void)
{
  int i = 0;
  print_help_common();
  while (gengetopt_args_info_help[i])
    printf("%s\n", gengetopt_args_info_help[i++]);
}

void
cmdline_parser_init (struct gengetopt_args_info *args_info)
{
  clear_given (args_info);
  clear_args (args_info);
  init_args_info (args_info);
}

void
cmdline_parser_params_init(struct cmdline_parser_params *params)
{
  if (params)
    { 
      params->override = 0;
      params->initialize = 1;
      params->check_required = 1;
      params->check_ambiguity = 0;
      params->print_errors = 1;
    }
}

struct cmdline_parser_params *
cmdline_parser_params_create(void)
{
  struct cmdline_parser_params *params = 
    (struct cmdline_parser_params *)malloc(sizeof(struct cmdline_parser_params));
  cmdline_parser_params_init(params);  
  return params;
}

static void
free_string_field (char **s)
{
  if (*s)
    {
      free (*s);
      *s = 0;
    }
}


static void
cmdline_parser_release (struct gengetopt_args_info *args_info)
{

  free_string_field (&(args_info->conf_arg));
  free_string_field (&(args_info->conf_orig));
  free_string_field (&(args_info->location_arg));
  free_string_field (&(args_info->location_orig));
  free_string_field (&(args_info->debug_orig));
  free_string_field (&(args_info->convert_arg));
  free_string_field (&(args_info->convert_orig));
  free_string_field (&(args_info->pid_file_arg));
  free_string_field (&(args_info->pid_file_orig));
  
  

  clear_given (args_info);
}


static void
write_into_file(FILE *outfile, const char *opt, const char *arg, char *values[])
{
  if (arg) {
    fprintf(outfile, "%s=\"%s\"\n", opt, arg);
  } else {
    fprintf(outfile, "%s\n", opt);
  }
}


int
cmdline_parser_dump(FILE *outfile, struct gengetopt_args_info *args_info)
{
  int i = 0;

  if (!outfile)
    {
      fprintf (stderr, "%s: cannot dump options to stream\n", CMDLINE_PARSER_PACKAGE);
      return EXIT_FAILURE;
    }

  if (args_info->help_given)
    write_into_file(outfile, "help", 0, 0 );
  if (args_info->version_given)
    write_into_file(outfile, "version", 0, 0 );
  if (args_info->conf_given)
    write_into_file(outfile, "conf", args_info->conf_orig, 0);
  if (args_info->location_given)
    write_into_file(outfile, "location", args_info->location_orig, 0);
  if (args_info->debug_given)
    write_into_file(outfile, "debug", args_info->debug_orig, 0);
  if (args_info->foreground_given)
    write_into_file(outfile, "foreground", 0, 0 );
  if (args_info->default_config_given)
    write_into_file(outfile, "default_config", 0, 0 );
  if (args_info->metrics_given)
    write_into_file(outfile, "metrics", 0, 0 );
  if (args_info->bandwidth_given)
    write_into_file(outfile, "bandwidth", 0, 0 );
  if (args_info->convert_given)
    write_into_file(outfile, "convert", args_info->convert_orig, 0);
  if (args_info->pid_file_given)
    write_into_file(outfile, "pid-file", args_info->pid_file_orig, 0);
  

  i = EXIT_SUCCESS;
  return i;
}

int
cmdline_parser_file_save(const char *filename, struct gengetopt_args_info *args_info)
{
  FILE *outfile;
  int i = 0;

  outfile = fopen(filename, "w");

  if (!outfile)
    {
      fprintf (stderr, "%s: cannot open file for writing: %s\n", CMDLINE_PARSER_PACKAGE, filename);
      return EXIT_FAILURE;
    }

  i = cmdline_parser_dump(outfile, args_info);
  fclose (outfile);

  return i;
}

void
cmdline_parser_free (struct gengetopt_args_info *args_info)
{
  cmdline_parser_release (args_info);
}

/** @brief replacement of strdup, which is not standard */
char *
gengetopt_strdup (const char *s)
{
  char *result = NULL;
  if (!s)
    return result;

  result = (char*)malloc(strlen(s) + 1);
  if (result == (char*)0)
    return (char*)0;
  strcpy(result, s);
  return result;
}

int
cmdline_parser (int argc, char * const *argv, struct gengetopt_args_info *args_info)
{
  return cmdline_parser2 (argc, argv, args_info, 0, 1, 1);
}

int
cmdline_parser_ext (int argc, char * const *argv, struct gengetopt_args_info *args_info,
                   struct cmdline_parser_params *params)
{
  int result;
  result = cmdline_parser_internal (argc, argv, args_info, params, NULL);

  if (result == EXIT_FAILURE)
    {
      cmdline_parser_free (args_info);
      exit (EXIT_FAILURE);
    }
  
  return result;
}

int
cmdline_parser2 (int argc, char * const *argv, struct gengetopt_args_info *args_info, int override, int initialize, int check_required)
{
  int result;
  struct cmdline_parser_params params;
  
  params.override = override;
  params.initialize = initialize;
  params.check_required = check_required;
  params.check_ambiguity = 0;
  params.print_errors = 1;

  result = cmdline_parser_internal (argc, argv, args_info, &params, NULL);

  if (result == EXIT_FAILURE)
    {
      cmdline_parser_free (args_info);
      exit (EXIT_FAILURE);
    }
  
  return result;
}

int
cmdline_parser_required (struct gengetopt_args_info *args_info, const char *prog_name)
{
  return EXIT_SUCCESS;
}


static char *package_name = 0;

/**
 * @brief updates an option
 * @param field the generic pointer to the field to update
 * @param orig_field the pointer to the orig field
 * @param field_given the pointer to the number of occurrence of this option
 * @param prev_given the pointer to the number of occurrence already seen
 * @param value the argument for this option (if null no arg was specified)
 * @param possible_values the possible values for this option (if specified)
 * @param default_value the default value (in case the option only accepts fixed values)
 * @param arg_type the type of this option
 * @param check_ambiguity @see cmdline_parser_params.check_ambiguity
 * @param override @see cmdline_parser_params.override
 * @param no_free whether to free a possible previous value
 * @param multiple_option whether this is a multiple option
 * @param long_opt the corresponding long option
 * @param short_opt the corresponding short option (or '-' if none)
 * @param additional_error possible further error specification
 */
static
int update_arg(void *field, char **orig_field,
               unsigned int *field_given, unsigned int *prev_given, 
               char *value, char *possible_values[], const char *default_value,
               cmdline_parser_arg_type arg_type,
               int check_ambiguity, int override,
               int no_free, int multiple_option,
               const char *long_opt, char short_opt,
               const char *additional_error)
{
  char *stop_char = 0;
  const char *val = value;
  int found;
  char **string_field;

  stop_char = 0;
  found = 0;

  if (!multiple_option && prev_given && (*prev_given || (check_ambiguity && *field_given)))
    {
      if (short_opt != '-')
        fprintf (stderr, "%s: '--%s' ('-%c') option given more than once%s\n", 
               package_name, long_opt, short_opt,
               (additional_error ? additional_error : ""));
      else
        fprintf (stderr, "%s: '--%s' option given more than once%s\n", 
               package_name, long_opt,
               (additional_error ? additional_error : ""));
      return 1; /* failure */
    }

    
  if (field_given && *field_given && ! override)
    return 0;
  if (prev_given)
    (*prev_given)++;
  if (field_given)
    (*field_given)++;
  if (possible_values)
    val = possible_values[found];

  switch(arg_type) {
  case ARG_FLAG:
    *((int *)field) = !*((int *)field);
    break;
  case ARG_INT:
    if (val) *((int *)field) = strtol (val, &stop_char, 0);
    break;
  case ARG_STRING:
    if (val) {
      string_field = (char **)field;
      if (!no_free && *string_field)
        free (*string_field); /* free previous string */
      *string_field = gengetopt_strdup (val);
    }
    break;
  default:
    break;
  };

  /* check numeric conversion */
  switch(arg_type) {
  case ARG_INT:
    if (val && !(stop_char && *stop_char == '\0')) {
      fprintf(stderr, "%s: invalid numeric value: %s\n", package_name, val);
      return 1; /* failure */
    }
    break;
  default:
    ;
  };

  /* store the original value */
  switch(arg_type) {
  case ARG_NO:
  case ARG_FLAG:
    break;
  default:
    if (value && orig_field) {
      if (no_free) {
        *orig_field = value;
      } else {
        if (*orig_field)
          free (*orig_field); /* free previous string */
        *orig_field = gengetopt_strdup (value);
      }
    }
  };

  return 0; /* OK */
}


int
cmdline_parser_internal (int argc, char * const *argv, struct gengetopt_args_info *args_info,
                        struct cmdline_parser_params *params, const char *additional_error)
{
  int c;    /* Character of the parsed option.  */

  int error = 0;
  struct gengetopt_args_info local_args_info;
  
  int override;
  int initialize;
  int check_required;
  int check_ambiguity;
  
  package_name = argv[0];
  
  override = params->override;
  initialize = params->initialize;
  check_required = params->check_required;
  check_ambiguity = params->check_ambiguity;

  if (initialize)
    cmdline_parser_init (args_info);

  cmdline_parser_init (&local_args_info);

  optarg = 0;
  optind = 0;
  opterr = params->print_errors;
  optopt = '?';

  while (1)
    {
      int option_index = 0;

      static struct option long_options[] = {
        { "help", 0, NULL, 'h' },
        { "version",    0, NULL, 'V' },
        { "conf", 1, NULL, 'c' },
        { "location",   1, NULL, 'l' },
        { "debug",      1, NULL, 'd' },
        { "foreground", 0, NULL, 'f' },
        { "default_config",   0, NULL, 't' },
        { "metrics",    0, NULL, 'm' },
        { "bandwidth",  0, NULL, 'b' },
        { "convert",    1, NULL, 'r' },
        { "pid-file",   1, NULL, 'p' },
        { NULL,   0, NULL, 0 }
      };

      c = getopt_long (argc, argv, "hVc:l:d:ftmbr:p:", long_options, &option_index);

      if (c == -1) break;     /* Exit from 'while (1)' loop.  */

      switch (c)
        {
        case 'h': /* Print help and exit.  */
          cmdline_parser_print_help ();
          cmdline_parser_free (&local_args_info);
          exit (EXIT_SUCCESS);

        case 'V': /* Print version and exit.  */
          cmdline_parser_print_version ();
          cmdline_parser_free (&local_args_info);
          exit (EXIT_SUCCESS);

        case 'c': /* Location of gmond configuration file.  */
        
        
          if (update_arg( (void *)&(args_info->conf_arg), 
               &(args_info->conf_orig), &(args_info->conf_given),
              &(local_args_info.conf_given), optarg, 0, "/etc/ganglia/gmond.conf", ARG_STRING,
              check_ambiguity, override, 0, 0,
              "conf", 'c',
              additional_error))
            goto failure;
        
          break;
        case 'l': /* Location of this host in the cluster 'rack,rank,plane'..  */
        
        
          if (update_arg( (void *)&(args_info->location_arg), 
               &(args_info->location_orig), &(args_info->location_given),
              &(local_args_info.location_given), optarg, 0, "0,0,0", ARG_STRING,
              check_ambiguity, override, 0, 0,
              "location", 'l',
              additional_error))
            goto failure;
        
          break;
        case 'd': /* Debug level. If greater than zero, daemon will stay in foreground..  */
        
        
          if (update_arg( (void *)&(args_info->debug_arg), 
               &(args_info->debug_orig), &(args_info->debug_given),
              &(local_args_info.debug_given), optarg, 0, "0", ARG_INT,
              check_ambiguity, override, 0, 0,
              "debug", 'd',
              additional_error))
            goto failure;
        
          break;
        case 'f': /* Run in foreground (don't daemonize).  */
        
        
          if (update_arg((void *)&(args_info->foreground_flag), 0, &(args_info->foreground_given),
              &(local_args_info.foreground_given), optarg, 0, 0, ARG_FLAG,
              check_ambiguity, override, 1, 0, "foreground", 'f',
              additional_error))
            goto failure;
        
          break;
        case 't': /* Print the default configuration to stdout and exit.  */
        
        
          if (update_arg((void *)&(args_info->default_config_flag), 0, &(args_info->default_config_given),
              &(local_args_info.default_config_given), optarg, 0, 0, ARG_FLAG,
              check_ambiguity, override, 1, 0, "default_config", 't',
              additional_error))
            goto failure;
        
          break;
        case 'm': /* Print the list of metrics this gmond supports.  */
        
        
          if (update_arg((void *)&(args_info->metrics_flag), 0, &(args_info->metrics_given),
              &(local_args_info.metrics_given), optarg, 0, 0, ARG_FLAG,
              check_ambiguity, override, 1, 0, "metrics", 'm',
              additional_error))
            goto failure;
        
          break;
        case 'b': /* Calculate minimum bandwidth use for configuration.  */
        
        
          if (update_arg((void *)&(args_info->bandwidth_flag), 0, &(args_info->bandwidth_given),
              &(local_args_info.bandwidth_given), optarg, 0, 0, ARG_FLAG,
              check_ambiguity, override, 1, 0, "bandwidth", 'b',
              additional_error))
            goto failure;
        
          break;
        case 'r': /* Convert a 2.5.x configuration file to the new 3.x format.  */
        
        
          if (update_arg( (void *)&(args_info->convert_arg), 
               &(args_info->convert_orig), &(args_info->convert_given),
              &(local_args_info.convert_given), optarg, 0, 0, ARG_STRING,
              check_ambiguity, override, 0, 0,
              "convert", 'r',
              additional_error))
            goto failure;
        
          break;
        case 'p': /* Write process-id to file.  */
        
        
          if (update_arg( (void *)&(args_info->pid_file_arg), 
               &(args_info->pid_file_orig), &(args_info->pid_file_given),
              &(local_args_info.pid_file_given), optarg, 0, 0, ARG_STRING,
              check_ambiguity, override, 0, 0,
              "pid-file", 'p',
              additional_error))
            goto failure;
        
          break;

        case 0:   /* Long option with no short option */
        case '?': /* Invalid option.  */
          /* 'getopt_long' already printed an error message.  */
          goto failure;

        default:  /* bug: option not considered.  */
          fprintf (stderr, "%s: option unknown: %c%s\n", CMDLINE_PARSER_PACKAGE, c, (additional_error ? additional_error : ""));
          abort ();
        } /* switch */
    } /* while */




  cmdline_parser_release (&local_args_info);

  if ( error )
    return (EXIT_FAILURE);

  return 0;

failure:
  
  cmdline_parser_release (&local_args_info);
  return (EXIT_FAILURE);
}

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