[tools/firmware-utils] imagetag: Significantly updated brcm63xx imagetag writing tool.

	* Rewrote commandline parsing code using gengetopt
		- We now get long options
		- We have more options including use of the info section for 
			board information (e.g. to add the same boardid but
			different GPIOs on different routers)
	* Added back the ability to write stock images (this is useful, for example,
		when copying the firmware from the in-memory flash, and then being
		able to create an image that will let you revert to/test stock firmware
	* Fixed copying of CRCs to use memcpy instead of strncpy (strncpy stops at 0)
	* Added ability to use all sections of the imagetag, including custom magic 
	 	signatures (e.g. for the Telsey router I'm adding soon), info sections,
		and reserved sections
	* Added putting the router type (as defined in the image generating Makefile)
		into the info1 section and the filesystem type in the info2 section.
		This will be used by mtd (when I add the code) to return the name of
		image used to flash this router.  (As requested by Jo, as well as being
		useful for same boardid different board scenario described above).



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24011 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 1163 insertions, 0 deletions

diff --git a/tools/firmware-utils/src/imagetag_cmdline.c b/tools/firmware-utils/src/imagetag_cmdline.c
new file mode 100644
index 0000000000..85f214bc6c
--- /dev/null
+++ b/tools/firmware-utils/src/imagetag_cmdline.c
@@ -0,0 +1,1163 @@
+/*
+  File autogenerated by gengetopt version 2.22.4
+  generated with the following command:
+  gengetopt --file-name=imagetag_cmdline --file-name=imagetag_cmdline
+
+  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>
+
+#ifndef FIX_UNUSED
+#define FIX_UNUSED(X) (void) (X) /* avoid warnings for unused params */
+#endif
+
+#include <getopt.h>
+
+#include "imagetag_cmdline.h"
+
+const char *gengetopt_args_info_purpose = "Generate image with CFE imagetag for Broadcom 63xx routers.";
+
+const char *gengetopt_args_info_usage = "Usage: imagetag [OPTIONS]...";
+
+const char *gengetopt_args_info_description = "Copyright (C) 2008 Axel Gembe\nCopyright (C) 2009-2010 Daniel Dickinson\nLicensed unter the terms of the Gnu General Public License.\n\nGiven a root filesystem, a linux kernel, and an optional CFE, generates an \nimage with an imagetag for a Broadcom 63xx-based router.  Additional parameters \nto be specified depend on the specfic brand and model of router.";
+
+const char *gengetopt_args_info_help[] = {
+  "  -h, --help                    Print help and exit",
+  "  -V, --version                 Print version and exit",
+  "  -i, --kernel=filename         File with LZMA compressed kernel to include in \n                                  the image.",
+  "  -f, --rootfs=filename         File with RootFS to include in the image.",
+  "  -o, --output=filename         Name of output file.",
+  "      --cfe=filename            File with CFE to include in the image.",
+  "  -b, --boardid=STRING          Board ID to set in the image (must match what \n                                  router expects, e.g. \"96345GW2\").",
+  "  -c, --chipid=STRING           Chip ID to set in the image (must match the \n                                  actual hardware, e.g. \"6345\").",
+  "  -s, --flash-start=address     Flash start address.  (default=`0xBFC00000')",
+  "  -n, --image-offset=offset     Offset from start address for the first byte \n                                  after the CFE (in memory).  \n                                  (default=`0x10000')",
+  "  -v, --tag-version=STRING      Version number for imagetag format.  \n                                  (default=`6')",
+  "  -a, --signature=STRING        Magic string (signature), for boards that need \n                                  it.  (default=`Broadcom Corporatio')",
+  "  -m, --signature2=STRING       Second magic string (signature2).  \n                                  (default=`ver. 2.0')",
+  "  -k, --block-size=STRING       Flash erase block size.  (default=`0x10000')",
+  "  -l, --load-addr=address       Kernel load address.",
+  "  -e, --entry=address           Address where the kernel entry point will be \n                                  for booting.",
+  "  -y, --layoutver=STRING        Flash layout version (version 2.2x of the \n                                  Broadcom code requires this).",
+  "  -1, --info1=STRING            String for first vendor information section.",
+  "      --altinfo=STRING          String for vendor information section \n                                  (alternate/pirelli).",
+  "  -2, --info2=STRING            String for second vendor information section.",
+  "      --root-first              Put the rootfs before the kernel (only for \n                                  stock images, e.g. captured from the router's \n                                  flash memory).  (default=off)",
+  "  -r, --rsa-signature=STRING    String for RSA Signature section.",
+  "      --second-image-flag=flag-value\n                                Dual Image Flag (2=not-specified).  (possible \n                                  values=\"0\", \"1\", \"2\" default=`2')",
+  "      --inactive=flag-value     Inactive Flag (2=not-specified).  (possible \n                                  values=\"0\", \"1\", \"2\" default=`2')",
+  "      --reserved1=STRING        String for first reserved section.",
+  "      --reserved2=STRING        String for second reserved section.",
+  "      --kernel-file-has-header  Indicates that the kernel file includes the \n                                  kernel header with correct load address and \n                                  entry point, so no changes are needed  \n                                  (default=off)",
+    0
+};
+
+typedef enum {ARG_NO
+  , ARG_FLAG
+  , ARG_STRING
+} 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 **argv, struct gengetopt_args_info *args_info,
+                        struct cmdline_parser_params *params, const char *additional_error);
+
+static int
+cmdline_parser_required2 (struct gengetopt_args_info *args_info, const char *prog_name, const char *additional_error);
+
+const char *cmdline_parser_second_image_flag_values[] = {"0", "1", "2", 0}; /*< Possible values for second-image-flag. */
+const char *cmdline_parser_inactive_values[] = {"0", "1", "2", 0}; /*< Possible values for inactive. */
+
+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->kernel_given = 0 ;
+  args_info->rootfs_given = 0 ;
+  args_info->output_given = 0 ;
+  args_info->cfe_given = 0 ;
+  args_info->boardid_given = 0 ;
+  args_info->chipid_given = 0 ;
+  args_info->flash_start_given = 0 ;
+  args_info->image_offset_given = 0 ;
+  args_info->tag_version_given = 0 ;
+  args_info->signature_given = 0 ;
+  args_info->signature2_given = 0 ;
+  args_info->block_size_given = 0 ;
+  args_info->load_addr_given = 0 ;
+  args_info->entry_given = 0 ;
+  args_info->layoutver_given = 0 ;
+  args_info->info1_given = 0 ;
+  args_info->altinfo_given = 0 ;
+  args_info->info2_given = 0 ;
+  args_info->root_first_given = 0 ;
+  args_info->rsa_signature_given = 0 ;
+  args_info->second_image_flag_given = 0 ;
+  args_info->inactive_given = 0 ;
+  args_info->reserved1_given = 0 ;
+  args_info->reserved2_given = 0 ;
+  args_info->kernel_file_has_header_given = 0 ;
+}
+
+static
+void clear_args (struct gengetopt_args_info *args_info)
+{
+  FIX_UNUSED (args_info);
+  args_info->kernel_arg = NULL;
+  args_info->kernel_orig = NULL;
+  args_info->rootfs_arg = NULL;
+  args_info->rootfs_orig = NULL;
+  args_info->output_arg = NULL;
+  args_info->output_orig = NULL;
+  args_info->cfe_arg = NULL;
+  args_info->cfe_orig = NULL;
+  args_info->boardid_arg = NULL;
+  args_info->boardid_orig = NULL;
+  args_info->chipid_arg = NULL;
+  args_info->chipid_orig = NULL;
+  args_info->flash_start_arg = gengetopt_strdup ("0xBFC00000");
+  args_info->flash_start_orig = NULL;
+  args_info->image_offset_arg = gengetopt_strdup ("0x10000");
+  args_info->image_offset_orig = NULL;
+  args_info->tag_version_arg = gengetopt_strdup ("6");
+  args_info->tag_version_orig = NULL;
+  args_info->signature_arg = gengetopt_strdup ("Broadcom Corporatio");
+  args_info->signature_orig = NULL;
+  args_info->signature2_arg = gengetopt_strdup ("ver. 2.0");
+  args_info->signature2_orig = NULL;
+  args_info->block_size_arg = gengetopt_strdup ("0x10000");
+  args_info->block_size_orig = NULL;
+  args_info->load_addr_arg = NULL;
+  args_info->load_addr_orig = NULL;
+  args_info->entry_arg = NULL;
+  args_info->entry_orig = NULL;
+  args_info->layoutver_arg = NULL;
+  args_info->layoutver_orig = NULL;
+  args_info->info1_arg = NULL;
+  args_info->info1_orig = NULL;
+  args_info->altinfo_arg = NULL;
+  args_info->altinfo_orig = NULL;
+  args_info->info2_arg = NULL;
+  args_info->info2_orig = NULL;
+  args_info->root_first_flag = 0;
+  args_info->rsa_signature_arg = NULL;
+  args_info->rsa_signature_orig = NULL;
+  args_info->second_image_flag_arg = gengetopt_strdup ("2");
+  args_info->second_image_flag_orig = NULL;
+  args_info->inactive_arg = gengetopt_strdup ("2");
+  args_info->inactive_orig = NULL;
+  args_info->reserved1_arg = NULL;
+  args_info->reserved1_orig = NULL;
+  args_info->reserved2_arg = NULL;
+  args_info->reserved2_orig = NULL;
+  args_info->kernel_file_has_header_flag = 0;
+  
+}
+
+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->kernel_help = gengetopt_args_info_help[2] ;
+  args_info->rootfs_help = gengetopt_args_info_help[3] ;
+  args_info->output_help = gengetopt_args_info_help[4] ;
+  args_info->cfe_help = gengetopt_args_info_help[5] ;
+  args_info->boardid_help = gengetopt_args_info_help[6] ;
+  args_info->chipid_help = gengetopt_args_info_help[7] ;
+  args_info->flash_start_help = gengetopt_args_info_help[8] ;
+  args_info->image_offset_help = gengetopt_args_info_help[9] ;
+  args_info->tag_version_help = gengetopt_args_info_help[10] ;
+  args_info->signature_help = gengetopt_args_info_help[11] ;
+  args_info->signature2_help = gengetopt_args_info_help[12] ;
+  args_info->block_size_help = gengetopt_args_info_help[13] ;
+  args_info->load_addr_help = gengetopt_args_info_help[14] ;
+  args_info->entry_help = gengetopt_args_info_help[15] ;
+  args_info->layoutver_help = gengetopt_args_info_help[16] ;
+  args_info->info1_help = gengetopt_args_info_help[17] ;
+  args_info->altinfo_help = gengetopt_args_info_help[18] ;
+  args_info->info2_help = gengetopt_args_info_help[19] ;
+  args_info->root_first_help = gengetopt_args_info_help[20] ;
+  args_info->rsa_signature_help = gengetopt_args_info_help[21] ;
+  args_info->second_image_flag_help = gengetopt_args_info_help[22] ;
+  args_info->inactive_help = gengetopt_args_info_help[23] ;
+  args_info->reserved1_help = gengetopt_args_info_help[24] ;
+  args_info->reserved2_help = gengetopt_args_info_help[25] ;
+  args_info->kernel_file_has_header_help = gengetopt_args_info_help[26] ;
+  
+}
+
+void
+cmdline_parser_print_version (void)
+{
+  printf ("%s %s\n",
+     (strlen(CMDLINE_PARSER_PACKAGE_NAME) ? CMDLINE_PARSER_PACKAGE_NAME : 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\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->kernel_arg));
+  free_string_field (&(args_info->kernel_orig));
+  free_string_field (&(args_info->rootfs_arg));
+  free_string_field (&(args_info->rootfs_orig));
+  free_string_field (&(args_info->output_arg));
+  free_string_field (&(args_info->output_orig));
+  free_string_field (&(args_info->cfe_arg));
+  free_string_field (&(args_info->cfe_orig));
+  free_string_field (&(args_info->boardid_arg));
+  free_string_field (&(args_info->boardid_orig));
+  free_string_field (&(args_info->chipid_arg));
+  free_string_field (&(args_info->chipid_orig));
+  free_string_field (&(args_info->flash_start_arg));
+  free_string_field (&(args_info->flash_start_orig));
+  free_string_field (&(args_info->image_offset_arg));
+  free_string_field (&(args_info->image_offset_orig));
+  free_string_field (&(args_info->tag_version_arg));
+  free_string_field (&(args_info->tag_version_orig));
+  free_string_field (&(args_info->signature_arg));
+  free_string_field (&(args_info->signature_orig));
+  free_string_field (&(args_info->signature2_arg));
+  free_string_field (&(args_info->signature2_orig));
+  free_string_field (&(args_info->block_size_arg));
+  free_string_field (&(args_info->block_size_orig));
+  free_string_field (&(args_info->load_addr_arg));
+  free_string_field (&(args_info->load_addr_orig));
+  free_string_field (&(args_info->entry_arg));
+  free_string_field (&(args_info->entry_orig));
+  free_string_field (&(args_info->layoutver_arg));
+  free_string_field (&(args_info->layoutver_orig));
+  free_string_field (&(args_info->info1_arg));
+  free_string_field (&(args_info->info1_orig));
+  free_string_field (&(args_info->altinfo_arg));
+  free_string_field (&(args_info->altinfo_orig));
+  free_string_field (&(args_info->info2_arg));
+  free_string_field (&(args_info->info2_orig));
+  free_string_field (&(args_info->rsa_signature_arg));
+  free_string_field (&(args_info->rsa_signature_orig));
+  free_string_field (&(args_info->second_image_flag_arg));
+  free_string_field (&(args_info->second_image_flag_orig));
+  free_string_field (&(args_info->inactive_arg));
+  free_string_field (&(args_info->inactive_orig));
+  free_string_field (&(args_info->reserved1_arg));
+  free_string_field (&(args_info->reserved1_orig));
+  free_string_field (&(args_info->reserved2_arg));
+  free_string_field (&(args_info->reserved2_orig));
+  
+  
+
+  clear_given (args_info);
+}
+
+/**
+ * @param val the value to check
+ * @param values the possible values
+ * @return the index of the matched value:
+ * -1 if no value matched,
+ * -2 if more than one value has matched
+ */
+static int
+check_possible_values(const char *val, const char *values[])
+{
+  int i, found, last;
+  size_t len;
+
+  if (!val)   /* otherwise strlen() crashes below */
+    return -1; /* -1 means no argument for the option */
+
+  found = last = 0;
+
+  for (i = 0, len = strlen(val); values[i]; ++i)
+    {
+      if (strncmp(val, values[i], len) == 0)
+        {
+          ++found;
+          last = i;
+          if (strlen(values[i]) == len)
+            return i; /* exact macth no need to check more */
+        }
+    }
+
+  if (found == 1) /* one match: OK */
+    return last;
+
+  return (found ? -2 : -1); /* return many values or none matched */
+}
+
+
+static void
+write_into_file(FILE *outfile, const char *opt, const char *arg, const char *values[])
+{
+  int found = -1;
+  if (arg) {
+    if (values) {
+      found = check_possible_values(arg, values);      
+    }
+    if (found >= 0)
+      fprintf(outfile, "%s=\"%s\" # %s\n", opt, arg, values[found]);
+    else
+      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->kernel_given)
+    write_into_file(outfile, "kernel", args_info->kernel_orig, 0);
+  if (args_info->rootfs_given)
+    write_into_file(outfile, "rootfs", args_info->rootfs_orig, 0);
+  if (args_info->output_given)
+    write_into_file(outfile, "output", args_info->output_orig, 0);
+  if (args_info->cfe_given)
+    write_into_file(outfile, "cfe", args_info->cfe_orig, 0);
+  if (args_info->boardid_given)
+    write_into_file(outfile, "boardid", args_info->boardid_orig, 0);
+  if (args_info->chipid_given)
+    write_into_file(outfile, "chipid", args_info->chipid_orig, 0);
+  if (args_info->flash_start_given)
+    write_into_file(outfile, "flash-start", args_info->flash_start_orig, 0);
+  if (args_info->image_offset_given)
+    write_into_file(outfile, "image-offset", args_info->image_offset_orig, 0);
+  if (args_info->tag_version_given)
+    write_into_file(outfile, "tag-version", args_info->tag_version_orig, 0);
+  if (args_info->signature_given)
+    write_into_file(outfile, "signature", args_info->signature_orig, 0);
+  if (args_info->signature2_given)
+    write_into_file(outfile, "signature2", args_info->signature2_orig, 0);
+  if (args_info->block_size_given)
+    write_into_file(outfile, "block-size", args_info->block_size_orig, 0);
+  if (args_info->load_addr_given)
+    write_into_file(outfile, "load-addr", args_info->load_addr_orig, 0);
+  if (args_info->entry_given)
+    write_into_file(outfile, "entry", args_info->entry_orig, 0);
+  if (args_info->layoutver_given)
+    write_into_file(outfile, "layoutver", args_info->layoutver_orig, 0);
+  if (args_info->info1_given)
+    write_into_file(outfile, "info1", args_info->info1_orig, 0);
+  if (args_info->altinfo_given)
+    write_into_file(outfile, "altinfo", args_info->altinfo_orig, 0);
+  if (args_info->info2_given)
+    write_into_file(outfile, "info2", args_info->info2_orig, 0);
+  if (args_info->root_first_given)
+    write_into_file(outfile, "root-first", 0, 0 );
+  if (args_info->rsa_signature_given)
+    write_into_file(outfile, "rsa-signature", args_info->rsa_signature_orig, 0);
+  if (args_info->second_image_flag_given)
+    write_into_file(outfile, "second-image-flag", args_info->second_image_flag_orig, cmdline_parser_second_image_flag_values);
+  if (args_info->inactive_given)
+    write_into_file(outfile, "inactive", args_info->inactive_orig, cmdline_parser_inactive_values);
+  if (args_info->reserved1_given)
+    write_into_file(outfile, "reserved1", args_info->reserved1_orig, 0);
+  if (args_info->reserved2_given)
+    write_into_file(outfile, "reserved2", args_info->reserved2_orig, 0);
+  if (args_info->kernel_file_has_header_given)
+    write_into_file(outfile, "kernel-file-has-header", 0, 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 = 0;
+  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 **argv, struct gengetopt_args_info *args_info)
+{
+  return cmdline_parser2 (argc, argv, args_info, 0, 1, 1);
+}
+
+int
+cmdline_parser_ext (int argc, char **argv, struct gengetopt_args_info *args_info,
+                   struct cmdline_parser_params *params)
+{
+  int result;
+  result = cmdline_parser_internal (argc, argv, args_info, params, 0);
+
+  if (result == EXIT_FAILURE)
+    {
+      cmdline_parser_free (args_info);
+      exit (EXIT_FAILURE);
+    }
+  
+  return result;
+}
+
+int
+cmdline_parser2 (int argc, char **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, 0);
+
+  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)
+{
+  int result = EXIT_SUCCESS;
+
+  if (cmdline_parser_required2(args_info, prog_name, 0) > 0)
+    result = EXIT_FAILURE;
+
+  if (result == EXIT_FAILURE)
+    {
+      cmdline_parser_free (args_info);
+      exit (EXIT_FAILURE);
+    }
+  
+  return result;
+}
+
+int
+cmdline_parser_required2 (struct gengetopt_args_info *args_info, const char *prog_name, const char *additional_error)
+{
+  int error = 0;
+  FIX_UNUSED (additional_error);
+
+  /* checks for required options */
+  if (! args_info->kernel_given)
+    {
+      fprintf (stderr, "%s: '--kernel' ('-i') option required%s\n", prog_name, (additional_error ? additional_error : ""));
+      error = 1;
+    }
+  
+  if (! args_info->rootfs_given)
+    {
+      fprintf (stderr, "%s: '--rootfs' ('-f') option required%s\n", prog_name, (additional_error ? additional_error : ""));
+      error = 1;
+    }
+  
+  if (! args_info->output_given)
+    {
+      fprintf (stderr, "%s: '--output' ('-o') option required%s\n", prog_name, (additional_error ? additional_error : ""));
+      error = 1;
+    }
+  
+  if (! args_info->boardid_given)
+    {
+      fprintf (stderr, "%s: '--boardid' ('-b') option required%s\n", prog_name, (additional_error ? additional_error : ""));
+      error = 1;
+    }
+  
+  if (! args_info->chipid_given)
+    {
+      fprintf (stderr, "%s: '--chipid' ('-c') option required%s\n", prog_name, (additional_error ? additional_error : ""));
+      error = 1;
+    }
+  
+  if (! args_info->load_addr_given)
+    {
+      fprintf (stderr, "%s: '--load-addr' ('-l') option required%s\n", prog_name, (additional_error ? additional_error : ""));
+      error = 1;
+    }
+  
+  if (! args_info->entry_given)
+    {
+      fprintf (stderr, "%s: '--entry' ('-e') option required%s\n", prog_name, (additional_error ? additional_error : ""));
+      error = 1;
+    }
+  
+  
+  /* checks for dependences among options */
+
+  return error;
+}
+
+
+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, const 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;
+  FIX_UNUSED (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 (possible_values && (found = check_possible_values((value ? value : default_value), possible_values)) < 0)
+    {
+      if (short_opt != '-')
+        fprintf (stderr, "%s: %s argument, \"%s\", for option `--%s' (`-%c')%s\n", 
+          package_name, (found == -2) ? "ambiguous" : "invalid", value, long_opt, short_opt,
+          (additional_error ? additional_error : ""));
+      else
+        fprintf (stderr, "%s: %s argument, \"%s\", for option `--%s'%s\n", 
+          package_name, (found == -2) ? "ambiguous" : "invalid", value, 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_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;
+  };
+
+
+  /* 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 **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' },
+        { "kernel",	1, NULL, 'i' },
+        { "rootfs",	1, NULL, 'f' },
+        { "output",	1, NULL, 'o' },
+        { "cfe",	1, NULL, 0 },
+        { "boardid",	1, NULL, 'b' },
+        { "chipid",	1, NULL, 'c' },
+        { "flash-start",	1, NULL, 's' },
+        { "image-offset",	1, NULL, 'n' },
+        { "tag-version",	1, NULL, 'v' },
+        { "signature",	1, NULL, 'a' },
+        { "signature2",	1, NULL, 'm' },
+        { "block-size",	1, NULL, 'k' },
+        { "load-addr",	1, NULL, 'l' },
+        { "entry",	1, NULL, 'e' },
+        { "layoutver",	1, NULL, 'y' },
+        { "info1",	1, NULL, '1' },
+        { "altinfo",	1, NULL, 0 },
+        { "info2",	1, NULL, '2' },
+        { "root-first",	0, NULL, 0 },
+        { "rsa-signature",	1, NULL, 'r' },
+        { "second-image-flag",	1, NULL, 0 },
+        { "inactive",	1, NULL, 0 },
+        { "reserved1",	1, NULL, 0 },
+        { "reserved2",	1, NULL, 0 },
+        { "kernel-file-has-header",	0, NULL, 0 },
+        { 0,  0, 0, 0 }
+      };
+
+      c = getopt_long (argc, argv, "hVi:f:o:b:c:s:n:v:a:m:k:l:e:y:1:2:r:", 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 'i':	/* File with LZMA compressed kernel to include in the image..  */
+        
+        
+          if (update_arg( (void *)&(args_info->kernel_arg), 
+               &(args_info->kernel_orig), &(args_info->kernel_given),
+              &(local_args_info.kernel_given), optarg, 0, 0, ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "kernel", 'i',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'f':	/* File with RootFS to include in the image..  */
+        
+        
+          if (update_arg( (void *)&(args_info->rootfs_arg), 
+               &(args_info->rootfs_orig), &(args_info->rootfs_given),
+              &(local_args_info.rootfs_given), optarg, 0, 0, ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "rootfs", 'f',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'o':	/* Name of output file..  */
+        
+        
+          if (update_arg( (void *)&(args_info->output_arg), 
+               &(args_info->output_orig), &(args_info->output_given),
+              &(local_args_info.output_given), optarg, 0, 0, ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "output", 'o',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'b':	/* Board ID to set in the image (must match what router expects, e.g. \"96345GW2\")..  */
+        
+        
+          if (update_arg( (void *)&(args_info->boardid_arg), 
+               &(args_info->boardid_orig), &(args_info->boardid_given),
+              &(local_args_info.boardid_given), optarg, 0, 0, ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "boardid", 'b',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'c':	/* Chip ID to set in the image (must match the actual hardware, e.g. \"6345\")..  */
+        
+        
+          if (update_arg( (void *)&(args_info->chipid_arg), 
+               &(args_info->chipid_orig), &(args_info->chipid_given),
+              &(local_args_info.chipid_given), optarg, 0, 0, ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "chipid", 'c',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 's':	/* Flash start address..  */
+        
+        
+          if (update_arg( (void *)&(args_info->flash_start_arg), 
+               &(args_info->flash_start_orig), &(args_info->flash_start_given),
+              &(local_args_info.flash_start_given), optarg, 0, "0xBFC00000", ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "flash-start", 's',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'n':	/* Offset from start address for the first byte after the CFE (in memory)..  */
+        
+        
+          if (update_arg( (void *)&(args_info->image_offset_arg), 
+               &(args_info->image_offset_orig), &(args_info->image_offset_given),
+              &(local_args_info.image_offset_given), optarg, 0, "0x10000", ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "image-offset", 'n',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'v':	/* Version number for imagetag format..  */
+        
+        
+          if (update_arg( (void *)&(args_info->tag_version_arg), 
+               &(args_info->tag_version_orig), &(args_info->tag_version_given),
+              &(local_args_info.tag_version_given), optarg, 0, "6", ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "tag-version", 'v',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'a':	/* Magic string (signature), for boards that need it..  */
+        
+        
+          if (update_arg( (void *)&(args_info->signature_arg), 
+               &(args_info->signature_orig), &(args_info->signature_given),
+              &(local_args_info.signature_given), optarg, 0, "Broadcom Corporatio", ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "signature", 'a',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'm':	/* Second magic string (signature2)..  */
+        
+        
+          if (update_arg( (void *)&(args_info->signature2_arg), 
+               &(args_info->signature2_orig), &(args_info->signature2_given),
+              &(local_args_info.signature2_given), optarg, 0, "ver. 2.0", ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "signature2", 'm',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'k':	/* Flash erase block size..  */
+        
+        
+          if (update_arg( (void *)&(args_info->block_size_arg), 
+               &(args_info->block_size_orig), &(args_info->block_size_given),
+              &(local_args_info.block_size_given), optarg, 0, "0x10000", ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "block-size", 'k',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'l':	/* Kernel load address..  */
+        
+        
+          if (update_arg( (void *)&(args_info->load_addr_arg), 
+               &(args_info->load_addr_orig), &(args_info->load_addr_given),
+              &(local_args_info.load_addr_given), optarg, 0, 0, ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "load-addr", 'l',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'e':	/* Address where the kernel entry point will be for booting..  */
+        
+        
+          if (update_arg( (void *)&(args_info->entry_arg), 
+               &(args_info->entry_orig), &(args_info->entry_given),
+              &(local_args_info.entry_given), optarg, 0, 0, ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "entry", 'e',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'y':	/* Flash layout version (version 2.2x of the Broadcom code requires this)..  */
+        
+        
+          if (update_arg( (void *)&(args_info->layoutver_arg), 
+               &(args_info->layoutver_orig), &(args_info->layoutver_given),
+              &(local_args_info.layoutver_given), optarg, 0, 0, ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "layoutver", 'y',
+              additional_error))
+            goto failure;
+        
+          break;
+        case '1':	/* String for first vendor information section..  */
+        
+        
+          if (update_arg( (void *)&(args_info->info1_arg), 
+               &(args_info->info1_orig), &(args_info->info1_given),
+              &(local_args_info.info1_given), optarg, 0, 0, ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "info1", '1',
+              additional_error))
+            goto failure;
+        
+          break;
+        case '2':	/* String for second vendor information section..  */
+        
+        
+          if (update_arg( (void *)&(args_info->info2_arg), 
+               &(args_info->info2_orig), &(args_info->info2_given),
+              &(local_args_info.info2_given), optarg, 0, 0, ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "info2", '2',
+              additional_error))
+            goto failure;
+        
+          break;
+        case 'r':	/* String for RSA Signature section..  */
+        
+        
+          if (update_arg( (void *)&(args_info->rsa_signature_arg), 
+               &(args_info->rsa_signature_orig), &(args_info->rsa_signature_given),
+              &(local_args_info.rsa_signature_given), optarg, 0, 0, ARG_STRING,
+              check_ambiguity, override, 0, 0,
+              "rsa-signature", 'r',
+              additional_error))
+            goto failure;
+        
+          break;
+
+        case 0:	/* Long option with no short option */
+          /* File with CFE to include in the image..  */
+          if (strcmp (long_options[option_index].name, "cfe") == 0)
+          {
+          
+          
+            if (update_arg( (void *)&(args_info->cfe_arg), 
+                 &(args_info->cfe_orig), &(args_info->cfe_given),
+                &(local_args_info.cfe_given), optarg, 0, 0, ARG_STRING,
+                check_ambiguity, override, 0, 0,
+                "cfe", '-',
+                additional_error))
+              goto failure;
+          
+          }
+          /* String for vendor information section (alternate/pirelli)..  */
+          else if (strcmp (long_options[option_index].name, "altinfo") == 0)
+          {
+          
+          
+            if (update_arg( (void *)&(args_info->altinfo_arg), 
+                 &(args_info->altinfo_orig), &(args_info->altinfo_given),
+                &(local_args_info.altinfo_given), optarg, 0, 0, ARG_STRING,
+                check_ambiguity, override, 0, 0,
+                "altinfo", '-',
+                additional_error))
+              goto failure;
+          
+          }
+          /* Put the rootfs before the kernel (only for stock images, e.g. captured from the router's flash memory)..  */
+          else if (strcmp (long_options[option_index].name, "root-first") == 0)
+          {
+          
+          
+            if (update_arg((void *)&(args_info->root_first_flag), 0, &(args_info->root_first_given),
+                &(local_args_info.root_first_given), optarg, 0, 0, ARG_FLAG,
+                check_ambiguity, override, 1, 0, "root-first", '-',
+                additional_error))
+              goto failure;
+          
+          }
+          /* Dual Image Flag (2=not-specified)..  */
+          else if (strcmp (long_options[option_index].name, "second-image-flag") == 0)
+          {
+          
+          
+            if (update_arg( (void *)&(args_info->second_image_flag_arg), 
+                 &(args_info->second_image_flag_orig), &(args_info->second_image_flag_given),
+                &(local_args_info.second_image_flag_given), optarg, cmdline_parser_second_image_flag_values, "2", ARG_STRING,
+                check_ambiguity, override, 0, 0,
+                "second-image-flag", '-',
+                additional_error))
+              goto failure;
+          
+          }
+          /* Inactive Flag (2=not-specified)..  */
+          else if (strcmp (long_options[option_index].name, "inactive") == 0)
+          {
+          
+          
+            if (update_arg( (void *)&(args_info->inactive_arg), 
+                 &(args_info->inactive_orig), &(args_info->inactive_given),
+                &(local_args_info.inactive_given), optarg, cmdline_parser_inactive_values, "2", ARG_STRING,
+                check_ambiguity, override, 0, 0,
+                "inactive", '-',
+                additional_error))
+              goto failure;
+          
+          }
+          /* String for first reserved section..  */
+          else if (strcmp (long_options[option_index].name, "reserved1") == 0)
+          {
+          
+          
+            if (update_arg( (void *)&(args_info->reserved1_arg), 
+                 &(args_info->reserved1_orig), &(args_info->reserved1_given),
+                &(local_args_info.reserved1_given), optarg, 0, 0, ARG_STRING,
+                check_ambiguity, override, 0, 0,
+                "reserved1", '-',
+                additional_error))
+              goto failure;
+          
+          }
+          /* String for second reserved section..  */
+          else if (strcmp (long_options[option_index].name, "reserved2") == 0)
+          {
+          
+          
+            if (update_arg( (void *)&(args_info->reserved2_arg), 
+                 &(args_info->reserved2_orig), &(args_info->reserved2_given),
+                &(local_args_info.reserved2_given), optarg, 0, 0, ARG_STRING,
+                check_ambiguity, override, 0, 0,
+                "reserved2", '-',
+                additional_error))
+              goto failure;
+          
+          }
+          /* Indicates that the kernel file includes the kernel header with correct load address and entry point, so no changes are needed.  */
+          else if (strcmp (long_options[option_index].name, "kernel-file-has-header") == 0)
+          {
+          
+          
+            if (update_arg((void *)&(args_info->kernel_file_has_header_flag), 0, &(args_info->kernel_file_has_header_given),
+                &(local_args_info.kernel_file_has_header_given), optarg, 0, 0, ARG_FLAG,
+                check_ambiguity, override, 1, 0, "kernel-file-has-header", '-',
+                additional_error))
+              goto failure;
+          
+          }
+          
+          break;
+        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 */
+
+
+
+  if (check_required)
+    {
+      error += cmdline_parser_required2 (args_info, argv[0], additional_error);
+    }
+
+  cmdline_parser_release (&local_args_info);
+
+  if ( error )
+    return (EXIT_FAILURE);
+
+  return 0;
+
+failure:
+  
+  cmdline_parser_release (&local_args_info);
+  return (EXIT_FAILURE);
+}