libopkg/user.c

   1 /* user.c - the opkg package management system
   2
   3    Jamey Hicks
   4
   5    Copyright (C) 2002 Hewlett Packard Company
   6    Copyright (C) 2001 University of Southern California
   7
   8    This program is free software; you can redistribute it and/or
   9    modify it under the terms of the GNU General Public License as
  10    published by the Free Software Foundation; either version 2, or (at
  11    your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful, but
  14    WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16    General Public License for more details.
  17 */
  18 #include <stdlib.h>
  19 #include <stdio.h>
  20 #include <stdarg.h>
  21 #include <string.h>
  22 #include "file_util.h"
  23 #include "str_util.h"
  24 #include "user.h"
  25
  26 static char *question = NULL;
  27 static int question_len = 255;
  28
  29 opkg_response_callback opkg_cb_response = NULL;
  30
  31 char *get_user_response(const char *format, ...)
  32 {
  33      int len = question_len;
  34      va_list ap;
  35      char *response;
  36      va_start(ap, format);
  37
  38      do {
  39           if (question == NULL || len > question_len) {
  40                question = realloc(question, len + 1);
  41                question_len = len;
  42           }
  43           len = vsnprintf(question,question_len,format,ap);
  44      } while (len > question_len);
  45      response = strdup(opkg_cb_response(question));
  46      str_chomp(response);
  47      str_tolower(response);
  48
  49      return response;
  50 }