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  1. /* Copyright (c) 2008, Tim Post <tinkertim@gmail.com>
  2.  * All rights reserved.
  3.  *
  4.  * Redistribution and use in source and binary forms, with or without
  5.  * modification, are permitted provided that the following conditions are met:
  6.  *
  7.  * Redistributions of source code must retain the above copyright notice, this
  8.  * list of conditions and the following disclaimer.
  9.  *
  10.  * Redistributions in binary form must reproduce the above copyright notice,
  11.  * this list of conditions and the following disclaimer in the documentation
  12.  * and/or other materials provided with the distribution.
  13.  *
  14.  * Neither the name of the original program's authors nor the names of its
  15.  * contributors may be used to endorse or promote products derived from this
  16.  * software without specific prior written permission.
  17.  *
  18.  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  19.  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21.  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  22.  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23.  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24.  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25.  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26.  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27.  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28.  * POSSIBILITY OF SUCH DAMAGE.
  29.  */
  30.  
  31. #include <stdio.h>
  32. #include <stdlib.h>
  33. #include <string.h>
  34. #include <unistd.h>
  35. #include "config.h"
  36. #include "scli.h"
  37. #include "input.h"
  38. #include "util.h"
  39. #include "errors.h"
  40. #include "cmds/cmds.h"
  41.  
  42. /* See scli.h */
  43. static cliuser_t usr;
  44.  
  45. /* Globals that are modified during start-up that modules/builtins
  46.  * should be aware of. */
  47. volatile unsigned int cli_quit = 0;
  48. volatile unsigned int cli_verbocity = 1;
  49.  
  50. /* The official name of this program
  51.  * (change to your liking in configure.ac and re-run autoconf) */
  52. const char *progname = PACKAGE_NAME;
  53.  
  54. /* These are not exposed, even to builtins */
  55. static int cli_init(cliuser_t *);
  56. static void cli_finit(cliuser_t *);
  57.  
  58. /* Constructor */
  59. static int cli_init(cliuser_t *usr)
  60. {
  61.     usr->line = (char *) NULL;
  62.     usr->name = "root";
  63.     usr->home = "/";
  64.     usr->cwd = (char *) NULL;
  65.     usr->prompt = (char *) NULL;
  66.     chdir(usr->home);
  67.     usr->lasterr = 0;
  68.     return (int) cli_set_prompt(usr);
  69. }
  70.  
  71. /* Destructor */
  72. static void cli_finit(cliuser_t *usr)
  73. {
  74.     if (NULL != usr->line)
  75.         free(usr->line);
  76.     if (NULL != usr->prompt)
  77.         free(usr->prompt);
  78.     if (NULL != usr->cwd)
  79.         free(usr->cwd);
  80. }
  81.  
  82. int main(int argc, char *argv[])
  83. {
  84.     int ret = 0;
  85.  
  86.     if (cli_init(&usr))
  87.         exit(EXIT_FAILURE);
  88.  
  89.     printf("Welcome to %s - %s\nType `help' at any time for usage information.\n",
  90.         progname, PACKAGE_STRING);
  91.  
  92.     while (!cli_quit) {
  93.         get_input(&usr);
  94.         if (NULL != usr.line) {
  95.             ret = tok_input(&usr);
  96.             cli_set_prompt(&usr);
  97.             usr.lasterr = ret;
  98.         }
  99.     }
  100.     goto finit;
  101.  
  102. finit:
  103.     cli_finit(&usr);
  104.     return ret;
  105. }
  106.