output.log

alienino              3511c0997339cfcccccca39f214322eb22e8fc43
all'equipaggio        14555555ec8dcf1400db9b375c5b8ca836362d8b
Anacyclus             182c40fc4df5b4d997feeeeee22c4dbf059a95d4
bajar                 1352a687f6840df8801aaaaaadf71de84b816f86
bandwagon's           f6e6deb71111110839bc14dd9cbab6eb7b16f09c
barbihecho            bc45de24f03f2a086666668e2a0812a5f270c8cb
calcitrant            86d4ffffff9aae00ace440e93c1d87bb4ec8b56c
cornetti              000000f636f0d7cbc963a62f3a1bc87c9c985a04
crépir                a21303cfa9b7c6f0cccccc19cc59556a188ccac7
cyclosporin's         b5baaaaaa744f480586a905f692cdec2fa0a1919
d                     3c363836cf4e16666669a25da280a1865c2d2874
décréterais           5668bbbbbb6dd1c5fbe62a40bd952ccd507ce38f
deoxidizer            f99ec2a5ffddfa8194bbbbbb0637c7fa6e33af19
deraying              9a147ba83eed3dd032ac48b157b88aaaaaab7b08
Duracell's            d33cbbecb27a78e4d86666660d583b28f4680bbb
Escorial              f8d40cccccc3479da6609559f680082245ea75d9
étiquetteront         f58d53bfc1f21081e88cccccce387f447e7dd285
foreconsider          eeeeee6c3d7b945fe945a0016b42a337bf2150e4
frondose              94aadff51294e517b0ca85f19a7ab83e4b000000
furruco               51aac3b0459a5cc6999999ce542888d3e0b31c55
helenismo             c44444421c7ca2255c4a005daa9f686c8796626a
ingombriate           b8a444444fc275a7f2b857c8af43206f8e5af63a
Karilla's             c9417ee6f6490e8d72a4b191b439aba6abbbbbb9
keyage                4392b6aaaaaa237037157163fe86df6bb9859075
lechuguero            0c6673ab9942b0805e39da18c75282fa4444445d
loculamentose         befd86b1f87357e8b1db55faaaaaab263437e68d
metabiotically        ba66666663b16863f3aaf1e4b57ec5c7ef3b6bc3
negoziato             a7adfb000000c23651376635339d9a00adc9ecca
odontologist's        30d352dafe8ba90e7aaaaaa953c9813969a70784
oriently              9eadb733333307c9e05315a5bcfed1a6725f317d
palatinate's          86de99ea61ab555555e64be551d9a3bf3a3f720f
Robet                 f679205b5644c9f994446c6aabbcd7aaaaaa0b42
sadden                58281a308c4be557638029222222107a10f8aed9
scientificoreligious  c6cd9fa45f5f4ed04f4e23fcaaaaaaff0447f628
seggrom               2ea488532b5405ba39aac8d0ef5a820cddeeeeee
sériel                666666924ed11f1fa4591e648f46c5df3703d4ea
sherardises           4da480792a14893c77777717d5e13d421279151b
Taganrog              732a4ba12470fbe85fef111111ddec32e3e803fa
tidivates             2b0111111f390cef4ab55c731794fa60bbac1ae0
unquestioningness     526ee9ac2222229d1c65896fd6207b65b95e00f3
venenating            f8ee347db2333333ba35b8ad116b41b32ccc283c
violinmaking          347d3f1c2e0311b4e8490bcb80cd2222227c47b4

patterns.c

#include <stdio.h>
#include <stdlib.h>
#include <openssl/sha.h>
#include <regex.h>

/* -lssl */

int main() {
  char *line = NULL;
  size_t n = 0;
  ssize_t read_bytes;

  regex_t regex;
  int regex_match;

  char hex_digits[] = "0123456789abcdef";
  unsigned char hash_bytes[SHA_DIGEST_LENGTH];
  char hash_hexstr[2*SHA_DIGEST_LENGTH + 1];


  if(regcomp(&regex, "\\(.\\)\\1\\{5,\\}", 0)) {
    exit(EXIT_FAILURE);
  }

  while ((read_bytes = getline(&line, &n, stdin)) != -1) {
    int i;

    line[read_bytes - 1] = '\0'; /* discard the linefeed char */

    SHA1(line, read_bytes - 1, hash_bytes);
    for(i = 0; i < SHA_DIGEST_LENGTH; i++) {
      hash_hexstr[2*i + 1] = hex_digits[ hash_bytes[i]       & 0xf];
      hash_hexstr[2*i    ] = hex_digits[(hash_bytes[i] >> 4) & 0xf];
    }
    hash_hexstr[2*SHA_DIGEST_LENGTH] = '\0';

    regex_match = regexec(&regex, hash_hexstr, 0, NULL, 0);
    if(! regex_match) {
      printf("%s\t%s\n", line, hash_hexstr);
    } else {
      if(regex_match != REG_NOMATCH) exit(EXIT_FAILURE);
    }
  }

  regfree(&regex);
  free(line);

  exit(EXIT_SUCCESS);
}

run

#!/bin/sh
CC='gcc'
CFLAGS='-O2'

$CC $CFLAGS -lssl -o patterns patterns.c || exit
cat /usr/share/dict/* | sort -u | ./patterns | column -t