/* Copyright (C) 1991-2024 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#include <crypt.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>

static const struct
{
  const char *salt;
  const char *input;
  const char *expected;
} tests[] =
{
  { "$6$saltstring", "Hello world!",
    "$6$saltstring$svn8UoSVapNtMuq1ukKS4tPQd8iKwSMHWjl/O817G3uBnIFNjnQJu"
    "esI68u4OTLiBFdcbYEdFCoEOfaS35inz1" },
  { "$6$rounds=10000$saltstringsaltstring", "Hello world!",
    "$6$rounds=10000$saltstringsaltst$OW1/O6BYHV6BcXZu8QVeXbDWra3Oeqh0sb"
    "HbbMCVNSnCM/UrjmM0Dp8vOuZeHBy/YTBmSK6H9qs/y3RnOaw5v." },
  { "$6$rounds=5000$toolongsaltstring", "This is just a test",
    "$6$rounds=5000$toolongsaltstrin$lQ8jolhgVRVhY4b5pZKaysCLi0QBxGoNeKQ"
    "zQ3glMhwllF7oGDZxUhx1yxdYcz/e1JSbq3y6JMxxl8audkUEm0" },
  { "$6$rounds=1400$anotherlongsaltstring",
    "a very much longer text to encrypt.  This one even stretches over more"
    "than one line.",
    "$6$rounds=1400$anotherlongsalts$POfYwTEok97VWcjxIiSOjiykti.o/pQs.wP"
    "vMxQ6Fm7I6IoYN3CmLs66x9t0oSwbtEW7o7UmJEiDwGqd8p4ur1" },
  { "$6$rounds=77777$short",
    "we have a short salt string but not a short password",
    "$6$rounds=77777$short$WuQyW2YR.hBNpjjRhpYD/ifIw05xdfeEyQoMxIXbkvr0g"
    "ge1a1x3yRULJ5CCaUeOxFmtlcGZelFl5CxtgfiAc0" },
  { "$6$rounds=123456$asaltof16chars..", "a short string",
    "$6$rounds=123456$asaltof16chars..$BtCwjqMJGx5hrJhZywWvt0RLE8uZ4oPwc"
    "elCjmw2kSYu.Ec6ycULevoBK25fs2xXgMNrCzIMVcgEJAstJeonj1" },
  { "$6$rounds=10$roundstoolow", "the minimum number is still observed",
    "$6$rounds=1000$roundstoolow$kUMsbe306n21p9R.FRkW3IGn.S9NPN0x50YhH1x"
    "hLsPuWGsUSklZt58jaTfF4ZEQpyUNGc0dqbpBYYBaHHrsX." },
};

const int ntests = sizeof(tests) / sizeof(tests[0]);

int main(void) {
  int result = 0;
  int i;

  for (i = 0; i < ntests; ++i) {
    char * cp = crypt(tests[i].input, tests[i].salt);

    if (strcmp(cp, tests[i].expected) != 0) {
      printf("test %d: expected \"%s\", got \"%s\"\n", i, tests[i].expected, cp);
      result = 1;
    }
  }

  return result;
}