Initial revision

1 files changed, 776 insertions, 0 deletions

diff --git a/sgsnemu/cmdline.c b/sgsnemu/cmdline.c
new file mode 100644
index 0000000..ede48bf
--- /dev/null
+++ b/sgsnemu/cmdline.c
@@ -0,0 +1,776 @@
+/*
+  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\n");
+  printf("              --pidfile=STRING   Filename of process id file (default='./sgsnemu.pid')\n");
+  printf("              --statedir=STRING  Directory of nonvolatile data (default='./')\n");
+  printf("              --dns=STRING       DNS Server to use\n");
+  printf("   -lSTRING   --listen=STRING    Local interface\n");
+  printf("   -rSTRING   --remote=STRING    Remote host\n");
+  printf("   -nSTRING   --net=STRING       Network (default='192.168.0.0')\n");
+  printf("              --mask=STRING      Network mask (default='255.255.255.0')\n");
+  printf("              --contexts=INT     Number of contexts (default='1')\n");
+  printf("              --static           Allocate static tun ifterface (default=off)\n");
+  printf("              --timelimit=INT    Exit after timelimit seconds (default='0')\n");
+  printf("   -aSTRING   --apn=STRING       Access point name (default='internet')\n");
+  printf("   -iSTRING   --imsi=STRING      IMSI (default='240010123456789')\n");
+  printf("   -mSTRING   --msisdn=STRING    Mobile Station ISDN number (default='46702123456')\n");
+  printf("   -qINT      --qos=INT          Requested quality of service (default='0x0b921f')\n");
+  printf("   -uSTRING   --uid=STRING       Login user ID (default='mig')\n");
+  printf("   -pSTRING   --pwd=STRING       Login password (default='hemmelig')\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->dns_given = 0 ;
+  args_info->listen_given = 0 ;
+  args_info->remote_given = 0 ;
+  args_info->net_given = 0 ;
+  args_info->mask_given = 0 ;
+  args_info->contexts_given = 0 ;
+  args_info->static_given = 0 ;
+  args_info->timelimit_given = 0 ;
+  args_info->apn_given = 0 ;
+  args_info->imsi_given = 0 ;
+  args_info->msisdn_given = 0 ;
+  args_info->qos_given = 0 ;
+  args_info->uid_given = 0 ;
+  args_info->pwd_given = 0 ;
+#define clear_args() { \
+  args_info->fg_flag = 0;\
+  args_info->debug_flag = 0;\
+  args_info->conf_arg = NULL; \
+  args_info->pidfile_arg = strdup("./sgsnemu.pid") ;\
+  args_info->statedir_arg = strdup("./") ;\
+  args_info->dns_arg = NULL; \
+  args_info->listen_arg = NULL; \
+  args_info->remote_arg = NULL; \
+  args_info->net_arg = strdup("192.168.0.0") ;\
+  args_info->mask_arg = strdup("255.255.255.0") ;\
+  args_info->contexts_arg = 1 ;\
+  args_info->static_flag = 0;\
+  args_info->timelimit_arg = 0 ;\
+  args_info->apn_arg = strdup("internet") ;\
+  args_info->imsi_arg = strdup("240010123456789") ;\
+  args_info->msisdn_arg = strdup("46702123456") ;\
+  args_info->qos_arg = 0x0b921f ;\
+  args_info->uid_arg = strdup("mig") ;\
+  args_info->pwd_arg = strdup("hemmelig") ;\
+}
+
+  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 },
+        { "dns",	1, NULL, 0 },
+        { "listen",	1, NULL, 'l' },
+        { "remote",	1, NULL, 'r' },
+        { "net",	1, NULL, 'n' },
+        { "mask",	1, NULL, 0 },
+        { "contexts",	1, NULL, 0 },
+        { "static",	0, NULL, 0 },
+        { "timelimit",	1, NULL, 0 },
+        { "apn",	1, NULL, 'a' },
+        { "imsi",	1, NULL, 'i' },
+        { "msisdn",	1, NULL, 'm' },
+        { "qos",	1, NULL, 'q' },
+        { "uid",	1, NULL, 'u' },
+        { "pwd",	1, NULL, 'p' },
+        { NULL,	0, NULL, 0 }
+      };
+
+      c = getopt_long (argc, argv, "hVfdc:l:r:n:a:i:m:q:u:p:", 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 'r':	/* Remote host.  */
+          if (args_info->remote_given)
+            {
+              fprintf (stderr, "%s: `--remote' (`-r') option given more than once\n", PACKAGE);
+              clear_args ();
+              exit (EXIT_FAILURE);
+            }
+          args_info->remote_given = 1;
+          args_info->remote_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 'i':	/* IMSI.  */
+          if (args_info->imsi_given)
+            {
+              fprintf (stderr, "%s: `--imsi' (`-i') option given more than once\n", PACKAGE);
+              clear_args ();
+              exit (EXIT_FAILURE);
+            }
+          args_info->imsi_given = 1;
+          args_info->imsi_arg = strdup (optarg);
+          break;
+
+        case 'm':	/* Mobile Station ISDN number.  */
+          if (args_info->msisdn_given)
+            {
+              fprintf (stderr, "%s: `--msisdn' (`-m') option given more than once\n", PACKAGE);
+              clear_args ();
+              exit (EXIT_FAILURE);
+            }
+          args_info->msisdn_given = 1;
+          args_info->msisdn_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 'u':	/* Login user ID.  */
+          if (args_info->uid_given)
+            {
+              fprintf (stderr, "%s: `--uid' (`-u') option given more than once\n", PACKAGE);
+              clear_args ();
+              exit (EXIT_FAILURE);
+            }
+          args_info->uid_given = 1;
+          args_info->uid_arg = strdup (optarg);
+          break;
+
+        case 'p':	/* Login password.  */
+          if (args_info->pwd_given)
+            {
+              fprintf (stderr, "%s: `--pwd' (`-p') option given more than once\n", PACKAGE);
+              clear_args ();
+              exit (EXIT_FAILURE);
+            }
+          args_info->pwd_given = 1;
+          args_info->pwd_arg = strdup (optarg);
+          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;
+          }
+          /* DNS Server to use.  */
+          else if (strcmp (long_options[option_index].name, "dns") == 0)
+          {
+            if (args_info->dns_given)
+              {
+                fprintf (stderr, "%s: `--dns' option given more than once\n", PACKAGE);
+                clear_args ();
+                exit (EXIT_FAILURE);
+              }
+            args_info->dns_given = 1;
+            args_info->dns_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;
+          }
+          /* Number of contexts.  */
+          else if (strcmp (long_options[option_index].name, "contexts") == 0)
+          {
+            if (args_info->contexts_given)
+              {
+                fprintf (stderr, "%s: `--contexts' option given more than once\n", PACKAGE);
+                clear_args ();
+                exit (EXIT_FAILURE);
+              }
+            args_info->contexts_given = 1;
+            args_info->contexts_arg = strtol (optarg,&stop_char,0);
+            break;
+          }
+          /* Allocate static tun ifterface.  */
+          else if (strcmp (long_options[option_index].name, "static") == 0)
+          {
+            if (args_info->static_given)
+              {
+                fprintf (stderr, "%s: `--static' option given more than once\n", PACKAGE);
+                clear_args ();
+                exit (EXIT_FAILURE);
+              }
+            args_info->static_given = 1;
+            args_info->static_flag = !(args_info->static_flag);
+            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, "dns"))
+            {
+              if (override || !args_info->dns_given)
+                {
+                  args_info->dns_given = 1;
+                  if (fnum == 2)
+                    args_info->dns_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, "remote"))
+            {
+              if (override || !args_info->remote_given)
+                {
+                  args_info->remote_given = 1;
+                  if (fnum == 2)
+                    args_info->remote_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, "contexts"))
+            {
+              if (override || !args_info->contexts_given)
+                {
+                  args_info->contexts_given = 1;
+                  if (fnum == 2)
+                    args_info->contexts_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, "static"))
+            {
+              if (override || !args_info->static_given)
+                {
+                  args_info->static_given = 1;
+                  args_info->static_flag = !(args_info->static_flag);
+                }
+              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, "imsi"))
+            {
+              if (override || !args_info->imsi_given)
+                {
+                  args_info->imsi_given = 1;
+                  if (fnum == 2)
+                    args_info->imsi_arg = strdup (farg);
+                  else
+                    {
+                      fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
+                               filename, line_num);
+                      exit (EXIT_FAILURE);
+                    }
+                }
+              continue;
+            }
+          if (!strcmp(fopt, "msisdn"))
+            {
+              if (override || !args_info->msisdn_given)
+                {
+                  args_info->msisdn_given = 1;
+                  if (fnum == 2)
+                    args_info->msisdn_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;
+            }
+          if (!strcmp(fopt, "uid"))
+            {
+              if (override || !args_info->uid_given)
+                {
+                  args_info->uid_given = 1;
+                  if (fnum == 2)
+                    args_info->uid_arg = strdup (farg);
+                  else
+                    {
+                      fprintf (stderr, "%s:%d: required <option_name> <option_val>\n",
+                               filename, line_num);
+                      exit (EXIT_FAILURE);
+                    }
+                }
+              continue;
+            }
+          if (!strcmp(fopt, "pwd"))
+            {
+              if (override || !args_info->pwd_given)
+                {
+                  args_info->pwd_given = 1;
+                  if (fnum == 2)
+                    args_info->pwd_arg = strdup (farg);
+                  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;
+}