Initial revision
diff --git a/ggsn/cmdline.c b/ggsn/cmdline.c
new file mode 100644
index 0000000..2d07644
--- /dev/null
+++ b/ggsn/cmdline.c
@@ -0,0 +1,529 @@
+/*
+ File autogenerated by gengetopt version 2.8rc
+ generated with the following command:
+ ../../gengetopt-2.8rc/src/gengetopt --conf-parser
+
+ 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.
+*/
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+/* If we use autoconf. */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+/* Check for configure's getopt check result. */
+#ifndef HAVE_GETOPT_LONG
+#include "getopt.h"
+#else
+#include <getopt.h>
+#endif
+
+#ifndef HAVE_STRDUP
+#define strdup gengetopt_strdup
+#endif /* HAVE_STRDUP */
+
+#include "cmdline.h"
+
+
+void
+cmdline_parser_print_version (void)
+{
+ printf ("%s %s\n", PACKAGE, VERSION);
+}
+
+void
+cmdline_parser_print_help (void)
+{
+ cmdline_parser_print_version ();
+ printf("\n"
+ "Usage: %s [OPTIONS]...\n", PACKAGE);
+ printf(" -h --help Print help and exit\n");
+ printf(" -V --version Print version and exit\n");
+ printf(" -f --fg Run in foreground (default=off)\n");
+ printf(" -d --debug Run in debug mode (default=off)\n");
+ printf(" -cSTRING --conf=STRING Read configuration file (default='/etc/ggsn.conf')\n");
+ printf(" --pidfile=STRING Filename of process id file (default='/var/run/ggsn.pid')\n");
+ printf(" --statedir=STRING Directory of nonvolatile data (default='/var/lib/ggsn/')\n");
+ printf(" -lSTRING --listen=STRING Local interface\n");
+ printf(" -nSTRING --net=STRING Network (default='192.168.0.0')\n");
+ printf(" --mask=STRING Network mask (default='255.255.255.0')\n");
+ printf(" --timelimit=INT Exit after timelimit seconds (default='0')\n");
+ printf(" -aSTRING --apn=STRING Access point name (default='internet')\n");
+ printf(" -qINT --qos=INT Requested quality of service (default='0x0b921f')\n");
+}
+
+
+#ifndef HAVE_STRDUP
+/* gengetopt_strdup(): automatically generated from strdup.c. */
+/* strdup.c replacement of strdup, which is not standard */
+static char *
+gengetopt_strdup (const char *s)
+{
+ char *result = (char*)malloc(strlen(s) + 1);
+ if (result == (char*)0)
+ return (char*)0;
+ strcpy(result, s);
+ return result;
+}
+#endif /* HAVE_STRDUP */
+
+int
+cmdline_parser (int argc, char * const *argv, struct gengetopt_args_info *args_info)
+{
+ int c; /* Character of the parsed option. */
+ int missing_required_options = 0;
+
+ args_info->help_given = 0 ;
+ args_info->version_given = 0 ;
+ args_info->fg_given = 0 ;
+ args_info->debug_given = 0 ;
+ args_info->conf_given = 0 ;
+ args_info->pidfile_given = 0 ;
+ args_info->statedir_given = 0 ;
+ args_info->listen_given = 0 ;
+ args_info->net_given = 0 ;
+ args_info->mask_given = 0 ;
+ args_info->timelimit_given = 0 ;
+ args_info->apn_given = 0 ;
+ args_info->qos_given = 0 ;
+#define clear_args() { \
+ args_info->fg_flag = 0;\
+ args_info->debug_flag = 0;\
+ args_info->conf_arg = strdup("/etc/ggsn.conf") ;\
+ args_info->pidfile_arg = strdup("/var/run/ggsn.pid") ;\
+ args_info->statedir_arg = strdup("/var/lib/ggsn/") ;\
+ args_info->listen_arg = NULL; \
+ args_info->net_arg = strdup("192.168.0.0") ;\
+ args_info->mask_arg = strdup("255.255.255.0") ;\
+ args_info->timelimit_arg = 0 ;\
+ args_info->apn_arg = strdup("internet") ;\
+ args_info->qos_arg = 0x0b921f ;\
+}
+
+ clear_args();
+
+ optarg = 0;
+ optind = 1;
+ opterr = 1;
+ optopt = '?';
+
+ while (1)
+ {
+ int option_index = 0;
+ char *stop_char;
+ static struct option long_options[] = {
+ { "help", 0, NULL, 'h' },
+ { "version", 0, NULL, 'V' },
+ { "fg", 0, NULL, 'f' },
+ { "debug", 0, NULL, 'd' },
+ { "conf", 1, NULL, 'c' },
+ { "pidfile", 1, NULL, 0 },
+ { "statedir", 1, NULL, 0 },
+ { "listen", 1, NULL, 'l' },
+ { "net", 1, NULL, 'n' },
+ { "mask", 1, NULL, 0 },
+ { "timelimit", 1, NULL, 0 },
+ { "apn", 1, NULL, 'a' },
+ { "qos", 1, NULL, 'q' },
+ { NULL, 0, NULL, 0 }
+ };
+
+ c = getopt_long (argc, argv, "hVfdc:l:n:a:q:", long_options, &option_index);
+
+ if (c == -1) break; /* Exit from `while (1)' loop. */
+
+ switch (c)
+ {
+ case 'h': /* Print help and exit. */
+ clear_args ();
+ cmdline_parser_print_help ();
+ exit (EXIT_SUCCESS);
+
+ case 'V': /* Print version and exit. */
+ clear_args ();
+ cmdline_parser_print_version ();
+ exit (EXIT_SUCCESS);
+
+ case 'f': /* Run in foreground. */
+ if (args_info->fg_given)
+ {
+ fprintf (stderr, "%s: `--fg' (`-f') option given more than once\n", PACKAGE);
+ clear_args ();
+ exit (EXIT_FAILURE);
+ }
+ args_info->fg_given = 1;
+ args_info->fg_flag = !(args_info->fg_flag);
+ break;
+
+ case 'd': /* Run in debug mode. */
+ if (args_info->debug_given)
+ {
+ fprintf (stderr, "%s: `--debug' (`-d') option given more than once\n", PACKAGE);
+ clear_args ();
+ exit (EXIT_FAILURE);
+ }
+ args_info->debug_given = 1;
+ args_info->debug_flag = !(args_info->debug_flag);
+ break;
+
+ case 'c': /* Read configuration file. */
+ if (args_info->conf_given)
+ {
+ fprintf (stderr, "%s: `--conf' (`-c') option given more than once\n", PACKAGE);
+ clear_args ();
+ exit (EXIT_FAILURE);
+ }
+ args_info->conf_given = 1;
+ args_info->conf_arg = strdup (optarg);
+ break;
+
+ case 'l': /* Local interface. */
+ if (args_info->listen_given)
+ {
+ fprintf (stderr, "%s: `--listen' (`-l') option given more than once\n", PACKAGE);
+ clear_args ();
+ exit (EXIT_FAILURE);
+ }
+ args_info->listen_given = 1;
+ args_info->listen_arg = strdup (optarg);
+ break;
+
+ case 'n': /* Network. */
+ if (args_info->net_given)
+ {
+ fprintf (stderr, "%s: `--net' (`-n') option given more than once\n", PACKAGE);
+ clear_args ();
+ exit (EXIT_FAILURE);
+ }
+ args_info->net_given = 1;
+ args_info->net_arg = strdup (optarg);
+ break;
+
+ case 'a': /* Access point name. */
+ if (args_info->apn_given)
+ {
+ fprintf (stderr, "%s: `--apn' (`-a') option given more than once\n", PACKAGE);
+ clear_args ();
+ exit (EXIT_FAILURE);
+ }
+ args_info->apn_given = 1;
+ args_info->apn_arg = strdup (optarg);
+ break;
+
+ case 'q': /* Requested quality of service. */
+ if (args_info->qos_given)
+ {
+ fprintf (stderr, "%s: `--qos' (`-q') option given more than once\n", PACKAGE);
+ clear_args ();
+ exit (EXIT_FAILURE);
+ }
+ args_info->qos_given = 1;
+ args_info->qos_arg = strtol (optarg,&stop_char,0);
+ break;
+
+
+ case 0: /* Long option with no short option */
+ /* Filename of process id file. */
+ if (strcmp (long_options[option_index].name, "pidfile") == 0)
+ {
+ if (args_info->pidfile_given)
+ {
+ fprintf (stderr, "%s: `--pidfile' option given more than once\n", PACKAGE);
+ clear_args ();
+ exit (EXIT_FAILURE);
+ }
+ args_info->pidfile_given = 1;
+ args_info->pidfile_arg = strdup (optarg);
+ break;
+ }
+ /* Directory of nonvolatile data. */
+ else if (strcmp (long_options[option_index].name, "statedir") == 0)
+ {
+ if (args_info->statedir_given)
+ {
+ fprintf (stderr, "%s: `--statedir' option given more than once\n", PACKAGE);
+ clear_args ();
+ exit (EXIT_FAILURE);
+ }
+ args_info->statedir_given = 1;
+ args_info->statedir_arg = strdup (optarg);
+ break;
+ }
+ /* Network mask. */
+ else if (strcmp (long_options[option_index].name, "mask") == 0)
+ {
+ if (args_info->mask_given)
+ {
+ fprintf (stderr, "%s: `--mask' option given more than once\n", PACKAGE);
+ clear_args ();
+ exit (EXIT_FAILURE);
+ }
+ args_info->mask_given = 1;
+ args_info->mask_arg = strdup (optarg);
+ break;
+ }
+ /* Exit after timelimit seconds. */
+ else if (strcmp (long_options[option_index].name, "timelimit") == 0)
+ {
+ if (args_info->timelimit_given)
+ {
+ fprintf (stderr, "%s: `--timelimit' option given more than once\n", PACKAGE);
+ clear_args ();
+ exit (EXIT_FAILURE);
+ }
+ args_info->timelimit_given = 1;
+ args_info->timelimit_arg = strtol (optarg,&stop_char,0);
+ break;
+ }
+
+ case '?': /* Invalid option. */
+ /* `getopt_long' already printed an error message. */
+ exit (EXIT_FAILURE);
+
+ default: /* bug: option not considered. */
+ fprintf (stderr, "%s: option unknown: %c\n", PACKAGE, c);
+ abort ();
+ } /* switch */
+ } /* while */
+
+
+ if ( missing_required_options )
+ exit (EXIT_FAILURE);
+
+ return 0;
+}
+
+#define CONFIGPARSERBUFSIZE 1024
+
+int
+cmdline_parser_configfile (char * const filename, struct gengetopt_args_info *args_info, int override)
+{
+ FILE* file;
+ char linebuf[CONFIGPARSERBUFSIZE];
+ int line_num = 0;
+ int len;
+ int fnum;
+ char fopt[CONFIGPARSERBUFSIZE], farg[CONFIGPARSERBUFSIZE];
+ char *stop_char;
+
+ if ((file = fopen(filename, "r")) == NULL)
+ {
+ fprintf (stderr, "%s: Error opening configuration file '%s'\n",
+ PACKAGE, filename);
+ exit (EXIT_FAILURE);
+ }
+
+ while ((fgets(linebuf, CONFIGPARSERBUFSIZE, file)) != NULL)
+ {
+ ++line_num;
+ len = strlen(linebuf);
+ if (len == CONFIGPARSERBUFSIZE-1)
+ {
+ fprintf (stderr, "%s: Line longer than %d characters found in configuration file '%s'\n",
+ PACKAGE, CONFIGPARSERBUFSIZE, filename);
+ exit (EXIT_FAILURE);
+ }
+
+ if (linebuf[0] == '#')
+ continue; /* Line was a comment */
+
+ /* Get the option */
+ if ((fnum = sscanf(linebuf, "%s %s", fopt, farg)) > 0)
+ {
+ if (!strcmp(fopt, "help"))
+ {
+ if (override || !args_info->help_given)
+ {
+ args_info->help_given = 1;
+
+ }
+ continue;
+ }
+ if (!strcmp(fopt, "version"))
+ {
+ if (override || !args_info->version_given)
+ {
+ args_info->version_given = 1;
+
+ }
+ continue;
+ }
+ if (!strcmp(fopt, "fg"))
+ {
+ if (override || !args_info->fg_given)
+ {
+ args_info->fg_given = 1;
+ args_info->fg_flag = !(args_info->fg_flag);
+ }
+ continue;
+ }
+ if (!strcmp(fopt, "debug"))
+ {
+ if (override || !args_info->debug_given)
+ {
+ args_info->debug_given = 1;
+ args_info->debug_flag = !(args_info->debug_flag);
+ }
+ continue;
+ }
+ if (!strcmp(fopt, "conf"))
+ {
+ if (override || !args_info->conf_given)
+ {
+ args_info->conf_given = 1;
+ if (fnum == 2)
+ args_info->conf_arg = strdup (farg);
+ else
+ {
+ fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
+ filename, line_num);
+ exit (EXIT_FAILURE);
+ }
+ }
+ continue;
+ }
+ if (!strcmp(fopt, "pidfile"))
+ {
+ if (override || !args_info->pidfile_given)
+ {
+ args_info->pidfile_given = 1;
+ if (fnum == 2)
+ args_info->pidfile_arg = strdup (farg);
+ else
+ {
+ fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
+ filename, line_num);
+ exit (EXIT_FAILURE);
+ }
+ }
+ continue;
+ }
+ if (!strcmp(fopt, "statedir"))
+ {
+ if (override || !args_info->statedir_given)
+ {
+ args_info->statedir_given = 1;
+ if (fnum == 2)
+ args_info->statedir_arg = strdup (farg);
+ else
+ {
+ fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
+ filename, line_num);
+ exit (EXIT_FAILURE);
+ }
+ }
+ continue;
+ }
+ if (!strcmp(fopt, "listen"))
+ {
+ if (override || !args_info->listen_given)
+ {
+ args_info->listen_given = 1;
+ if (fnum == 2)
+ args_info->listen_arg = strdup (farg);
+ else
+ {
+ fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
+ filename, line_num);
+ exit (EXIT_FAILURE);
+ }
+ }
+ continue;
+ }
+ if (!strcmp(fopt, "net"))
+ {
+ if (override || !args_info->net_given)
+ {
+ args_info->net_given = 1;
+ if (fnum == 2)
+ args_info->net_arg = strdup (farg);
+ else
+ {
+ fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
+ filename, line_num);
+ exit (EXIT_FAILURE);
+ }
+ }
+ continue;
+ }
+ if (!strcmp(fopt, "mask"))
+ {
+ if (override || !args_info->mask_given)
+ {
+ args_info->mask_given = 1;
+ if (fnum == 2)
+ args_info->mask_arg = strdup (farg);
+ else
+ {
+ fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
+ filename, line_num);
+ exit (EXIT_FAILURE);
+ }
+ }
+ continue;
+ }
+ if (!strcmp(fopt, "timelimit"))
+ {
+ if (override || !args_info->timelimit_given)
+ {
+ args_info->timelimit_given = 1;
+ if (fnum == 2)
+ args_info->timelimit_arg = strtol (farg,&stop_char,0);
+ else
+ {
+ fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
+ filename, line_num);
+ exit (EXIT_FAILURE);
+ }
+ }
+ continue;
+ }
+ if (!strcmp(fopt, "apn"))
+ {
+ if (override || !args_info->apn_given)
+ {
+ args_info->apn_given = 1;
+ if (fnum == 2)
+ args_info->apn_arg = strdup (farg);
+ else
+ {
+ fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
+ filename, line_num);
+ exit (EXIT_FAILURE);
+ }
+ }
+ continue;
+ }
+ if (!strcmp(fopt, "qos"))
+ {
+ if (override || !args_info->qos_given)
+ {
+ args_info->qos_given = 1;
+ if (fnum == 2)
+ args_info->qos_arg = strtol (farg,&stop_char,0);
+ else
+ {
+ fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
+ filename, line_num);
+ exit (EXIT_FAILURE);
+ }
+ }
+ continue;
+ }
+
+
+ /* Tried all known options. This one is unknown! */
+ fprintf (stderr, "%s: Unknown option '%s' found in %s\n",
+ PACKAGE, fopt, filename);
+ exit (EXIT_FAILURE);
+ }
+ } /* while */
+ fclose(file); /* No error checking on close */
+
+ return 0;
+}