lib/krb5/prompter_posix.c

   1 /*
   2  * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "krb5_locl.h"
  35
  36 int KRB5_LIB_FUNCTION
  37 krb5_prompter_posix (krb5_context context,
  38                      void *data,
  39                      const char *name,
  40                      const char *banner,
  41                      int num_prompts,
  42                      krb5_prompt prompts[])
  43 {
  44     int i;
  45
  46     if (name)
  47         fprintf (stderr, "%s\n", name);
  48     if (banner)
  49         fprintf (stderr, "%s\n", banner);
  50     if (name || banner)
  51         fflush(stderr);
  52     for (i = 0; i < num_prompts; ++i) {
  53         if (prompts[i].hidden) {
  54             if(UI_UTIL_read_pw_string(prompts[i].reply->data,
  55                                   prompts[i].reply->length,
  56                                   prompts[i].prompt,
  57                                   0))
  58                return 1;
  59         } else {
  60             char *s = prompts[i].reply->data;
  61
  62             fputs (prompts[i].prompt, stdout);
  63             fflush (stdout);
  64             if(fgets(prompts[i].reply->data,
  65                      prompts[i].reply->length,
  66                      stdin) == NULL)
  67                 return 1;
  68             s[strcspn(s, "\n")] = '\0';
  69         }
  70     }
  71     return 0;
  72 }