1 files changed, 460 insertions, 0 deletions

diff --git a/src/tru/tinyradutil.c b/src/tru/tinyradutil.c
new file mode 100644
index 0000000..5524931
--- /dev/null
+++ b/src/tru/tinyradutil.c
@@ -0,0 +1,460 @@
+/*
+ *  Tiny RADIUS Client Library
+ *  Copyright (C) 2021 David M. Syzdek <david@syzdek.net>.
+ *  All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions are
+ *  met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of David M. Syzdek nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ *  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ *  THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ *  PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID M. SYZDEK BE LIABLE FOR
+ *  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ *  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ *  SUCH DAMAGE.
+ */
+#define _SRC_TRU_TINYRADUTIL_C 1
+
+///////////////
+//           //
+//  Headers  //
+//           //
+///////////////
+#pragma mark - Headers
+
+#include "tinyradutil.h"
+
+#include <tinyrad_utils.h>
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <errno.h>
+
+
+///////////////////
+//               //
+//  Definitions  //
+//               //
+///////////////////
+#pragma mark - Definitions
+
+
+//////////////////
+//              //
+//  Data Types  //
+//              //
+//////////////////
+#pragma mark - Data Types
+
+
+//////////////////
+//              //
+//  Prototypes  //
+//              //
+//////////////////
+#pragma mark - Prototypes
+
+static const TinyRadUtilWidget *
+tru_widget_lookup(
+         const char *                     wname,
+         int                              exact );
+
+
+/////////////////
+//             //
+//  Variables  //
+//             //
+/////////////////
+#pragma mark - Variables
+
+#pragma mark tinyrad_cmdmap[]
+const TinyRadUtilWidget tru_widget_map[] =
+{
+   {
+      .name       = "configuration",
+      .func       = &tru_widget_config,
+      .shortopts  = TRU_COMMON_SHORT TRU_DICT_SHORT,
+      .longopts   = (struct option []) { TRU_DICT_LONG TRU_COMMON_LONG },
+      .min_arg    = 0,
+      .max_arg    = 0,
+      .usage      = NULL,
+      .desc       = "print configuration"
+   },
+   {
+      .name       = "dictionary",
+      .func       = &tru_widget_dict,
+      .shortopts  = TRU_COMMON_SHORT TRU_DICT_SHORT,
+      .longopts   = (struct option []) { TRU_DICT_LONG TRU_COMMON_LONG },
+      .min_arg    = 0,
+      .max_arg    = 0,
+      .usage      = NULL,
+      .desc       = "print processed dictionary"
+   },
+   {
+      .name       = "help",
+      .func       = &tru_usage,
+      .shortopts  = TRU_COMMON_SHORT,
+      .longopts   = (struct option []) { TRU_COMMON_LONG },
+      .min_arg    = 0,
+      .max_arg    = 0,
+      .usage      = NULL,
+      .desc       = "print command usage"
+   },
+   {
+      .name       = NULL,
+      .func       = NULL,
+      .shortopts  = NULL,
+      .longopts   = NULL,
+      .min_arg    = -1,
+      .max_arg    = -1,
+      .usage      = NULL,
+      .desc       = NULL
+   }
+};
+
+
+/////////////////
+//             //
+//  Functions  //
+//             //
+/////////////////
+#pragma mark - Functions
+
+int main(int argc, char * argv[])
+{
+   int            c;
+   int            opt_index;
+   int            rc;
+   TinyRadDict *  dict;
+   TinyRadUtilConf    cnfdata;
+   TinyRadUtilConf *  cnf;
+
+   // getopt options
+   static char          short_opt[] = "+" TRU_COMMON_SHORT;
+   static struct option long_opt[]  = { TRU_COMMON_LONG };
+
+   trutils_initialize(PROGRAM_NAME);
+
+   memset(&cnfdata, 0, sizeof(cnfdata));
+   cnf         = &cnfdata;
+   dict        = NULL;
+
+   while((c = tru_getopt(cnf, argc, argv, short_opt, long_opt, &opt_index)) != -1)
+   {
+      switch(c)
+      {
+         case TRU_GETOPT_MATCHED: /* captured by common options */
+         case -1:                 /* no more arguments */
+         case 0:                  /* long options toggles */
+         break;
+
+         case TRU_GETOPT_EXIT:
+         tru_cleanup(cnf);
+         return(0);
+
+         case TRU_GETOPT_ERROR:
+         tru_cleanup(cnf);
+         return(1);
+
+         case '?':
+         fprintf(stderr, "Try `%s --help' for more information.\n", PROGRAM_NAME);
+         return(1);
+
+         default:
+         fprintf(stderr, "%s: unrecognized option `--%c'\n", PROGRAM_NAME, c);
+         fprintf(stderr, "Try `%s --help' for more information.\n", PROGRAM_NAME);
+         return(1);
+      };
+   };
+   if ((argc - optind) < 1)
+   {
+      fprintf(stderr, "%s: missing required argument\n", PROGRAM_NAME);
+      fprintf(stderr, "Try `%s --help' for more information.\n", PROGRAM_NAME);
+      return(1);
+   };
+   cnf->cmd_argc = (argc - optind);
+   cnf->cmd_argv = &argv[optind];
+   cnf->cmd_name = cnf->cmd_argv[0];
+
+   // looks up widget
+   if ((cnf->cmd = tru_widget_lookup(cnf->cmd_argv[0], TRAD_NO)) == NULL)
+   {
+      fprintf(stderr, "%s: unknown or ambiguous widget -- \"%s\"\n", PROGRAM_NAME, cnf->cmd_argv[0]);
+      fprintf(stderr, "Try `%s --help' for more information.\n", PROGRAM_NAME);
+      return(1);
+   };
+
+   // process widget cli options
+   optind = 1;
+   opt_index = 0;
+   while((c = tru_getopt(cnf, cnf->cmd_argc, cnf->cmd_argv, cnf->cmd->shortopts, cnf->cmd->longopts, &opt_index)) != -1)
+   {
+      switch(c)
+      {
+         case -2: /* captured by common options */
+         case -1:       /* no more arguments */
+         case 0:        /* long options toggles */
+         break;
+
+         case TRU_GETOPT_EXIT:
+         tru_cleanup(cnf);
+         return(0);
+
+         case TRU_GETOPT_ERROR:
+         tru_cleanup(cnf);
+         return(1);
+
+         case '?':
+         fprintf(stderr, "Try `%s %s --help' for more information.\n", PROGRAM_NAME, cnf->cmd_name);
+         return(1);
+
+         default:
+         fprintf(stderr, "%s: %s: unrecognized option `--%c'\n", PROGRAM_NAME, cnf->cmd_name, c);
+         fprintf(stderr, "Try `%s %s --help' for more information.\n", PROGRAM_NAME, cnf->cmd_name);
+         return(1);
+      };
+   };
+   if ((cnf->cmd_argc - optind) < cnf->cmd->min_arg)
+   {
+      fprintf(stderr, "%s: missing required argument\n", PROGRAM_NAME);
+      fprintf(stderr, "Try `%s %s --help' for more information.\n", PROGRAM_NAME, cnf->cmd_name);
+      return(1);
+   };
+   if ((optind+cnf->cmd->max_arg) > cnf->cmd_argc)
+   {
+      fprintf(stderr, "%s: unrecognized argument `-- %s'\n", PROGRAM_NAME, cnf->cmd_argv[optind+1]);
+      fprintf(stderr, "Try `%s %s --help' for more information.\n", PROGRAM_NAME, cnf->cmd_name);
+      return(1);
+   };
+
+   // call widget
+   rc = cnf->cmd->func(cnf);
+   tru_cleanup(cnf);
+   return(trutils_exit_code(rc));
+}
+
+
+void
+tru_cleanup(
+         TinyRadUtilConf *                 cnf )
+{
+   tinyrad_free(cnf->tr);
+   tinyrad_strsfree(cnf->dict_files);
+   tinyrad_strsfree(cnf->dict_paths);
+   return;
+}
+
+
+int
+tru_getopt(
+         TinyRadUtilConf *                 cnf,
+         int                           argc,
+         char * const *                argv,
+         const char *                  short_opt,
+         const struct option *         long_opt,
+         int *                         opt_index )
+{
+   int   c;
+   int   opt;
+
+   switch(c = getopt_long(argc, argv, short_opt, long_opt, opt_index))
+   {
+      case 'b':
+      cnf->tr_opts |= TRAD_BUILTIN_DICT;
+      return(TRU_GETOPT_MATCHED);
+
+      case 'D':
+      if (tinyrad_strsadd(&cnf->dict_files, optarg) != TRAD_SUCCESS)
+      {
+         trutils_error(cnf->opts, NULL, "out of virtual memory");
+         return(TRU_GETOPT_ERROR);
+      };
+      return(TRU_GETOPT_MATCHED);
+
+      case 'd':
+      opt = ((optarg)) ? (int)strtol(optarg, NULL, 0) : TRAD_DEBUG_ANY;
+      tinyrad_set_option(NULL, TRAD_OPT_DEBUG_LEVEL, &opt);
+      return(TRU_GETOPT_MATCHED);
+
+      case 'h':
+      tru_usage(cnf);
+      return(TRU_GETOPT_EXIT);
+
+      case 'I':
+      if (tinyrad_strsadd(&cnf->dict_paths, optarg) != TRAD_SUCCESS)
+      {
+         trutils_error(cnf->opts, NULL, "out of virtual memory");
+         return(TRU_GETOPT_ERROR);
+      };
+      return(TRU_GETOPT_MATCHED);
+
+      case 'q':
+      cnf->opts |=  TRUTILS_OPT_QUIET;
+      cnf->opts &= ~TRUTILS_OPT_VERBOSE;
+      return(TRU_GETOPT_MATCHED);
+
+      case 'V':
+      trutils_version();
+      return(TRU_GETOPT_EXIT);
+
+      case 'v':
+      cnf->opts |=  TRUTILS_OPT_VERBOSE;
+      cnf->opts &= ~TRUTILS_OPT_QUIET;
+      return(TRU_GETOPT_MATCHED);
+
+      default:
+      break;
+   };
+
+   return(c);
+}
+
+
+int
+tru_load_tinyrad(
+         TinyRadUtilConf *                 cnf )
+{
+   int                  rc;
+   char **              errs;
+   size_t               pos;
+   TinyRadDict *        dict;
+
+   errs = NULL;
+   dict = NULL;
+
+   if ((cnf->dict_files))
+   {
+      // initialize dictionary
+      if ((rc = tinyrad_dict_initialize(&dict, cnf->tr_opts)) != TRAD_SUCCESS)
+      {
+         trutils_error(cnf->opts, NULL, "out of virtual memory");
+         return(rc);
+      };
+
+      // set paths
+      if ((cnf->dict_paths))
+      {
+         if ((rc = tinyrad_dict_set_option(dict, TRAD_DICT_OPT_PATHS, cnf->dict_paths)) != TRAD_SUCCESS)
+         {
+            trutils_error(cnf->opts, NULL, "tinyrad_dict_set_option(TRAD_DICT_OPT_PATHS): %s", tinyrad_strerror(rc));
+            tinyrad_free(dict);
+            return(rc);
+         };
+      };
+
+      // parse dictionary files
+      for(pos = 0; ( ((cnf->dict_files)) && ((cnf->dict_files[pos])) ); pos++)
+      {
+         if ((rc = tinyrad_dict_parse(dict, cnf->dict_files[pos], &errs, 0)) != TRAD_SUCCESS)
+         {
+            trutils_error(cnf->opts, errs, NULL);
+            tinyrad_strsfree(errs);
+            tinyrad_free(dict);
+            return(rc);
+         };
+      };
+   };
+
+   // initialize tinyrad handle
+   rc = tinyrad_initialize(&cnf->tr, dict, cnf->url, cnf->tr_opts);
+   tinyrad_free(dict);
+   return(rc);
+}
+
+
+int
+tru_usage(
+         TinyRadUtilConf *                 cnf )
+{
+   int            i;
+   const char *   name;
+   const char *   help;
+   const char *   s;
+
+   name  = (!(cnf->cmd)) ? "widget"         : cnf->cmd->name;
+   help  = (!(cnf->cmd)) ? " ..."           : (((cnf->cmd->usage))     ? cnf->cmd->usage     : "");
+   s     = (!(cnf->cmd)) ? TRU_COMMON_SHORT : (((cnf->cmd->shortopts)) ? cnf->cmd->shortopts : TRU_COMMON_SHORT);
+
+   printf("Usage: %s %s [OPTIONS]%s\n", PROGRAM_NAME, name, help);
+   printf("OPTIONS:\n");
+   if ((strchr(s, 'b'))) printf("  -b, --builtin-dict        load built-in dictionary\n");
+   if ((strchr(s, 'D'))) printf("  -D dictionary             include dictionary\n");
+   if ((strchr(s, 'd'))) printf("  -d level, --debug=level   print debug messages\n");
+   if ((strchr(s, 'f'))) printf("  -f file, --file=file      attribute list\n");
+   if ((strchr(s, 'h'))) printf("  -h, --help                print this help and exit\n");
+   if ((strchr(s, 'I'))) printf("  -I path                   add path to dictionary search paths\n");
+   if ((strchr(s, 'q'))) printf("  -q, --quiet, --silent     do not print messages\n");
+   if ((strchr(s, 'V'))) printf("  -V, --version             print version number and exit\n");
+   if ((strchr(s, 'v'))) printf("  -v, --verbose             print verbose messages\n");
+   if (!(cnf->cmd))
+   {
+      printf("COMMANDS:\n");
+      for(i = 0; tru_widget_map[i].name != NULL; i++)
+         if ((tru_widget_map[i].desc))
+            printf("  %-25s %s\n", tru_widget_map[i].name, tru_widget_map[i].desc);
+   };
+   printf("\n");
+   return(0);
+}
+
+
+static const TinyRadUtilWidget *
+tru_widget_lookup(
+         const char *                     wname,
+         int                              exact )
+{
+   size_t                     wname_len;
+   size_t                     x;
+   const TinyRadUtilWidget *  widget;
+   const TinyRadUtilWidget *  match;
+
+   match       = NULL;
+   wname_len   = strlen(wname);
+
+   for(x = 0; ((tru_widget_map[x].name)); x++)
+   {
+      widget = &tru_widget_map[x];
+      if (widget->func == NULL)
+         continue;
+
+      if (!(strncmp(widget->name, wname, wname_len)))
+      {
+         if (widget->name[wname_len] == '\0')
+            return(widget);
+         if ((match))
+            return(NULL);
+         if (exact == TRAD_NO)
+            match = widget;
+      };
+   };
+
+   return(match);
+}
+
+/* end of source */