Related questions
Given following code and write comments for those code
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <ctype.h>
#define MAX_PASSWORD_LENGTH 128
#define MIN_PASSWORD_LENGTH 10
#define ALLOW_PASSPHRASE true
#define MIN_PHRASE_LENGTH 20
#define OPTIONAL_TESTS_REQUIRED true
#define MIN_OPTIONAL_TESTS_TO_PASS 4
bool isStrongPassword(char *password);
void printTestResults(char *password, bool isPassphrase, int optionalTestsPassed);
int main() {
char passwords[][128] = {
"password",
"mypassword",
"thisismypassword",
"passssword",
"This is my password phrase1",
"Tinypw1",
"Ireallydontlikehavingtomakeupnewpasswordsallthetime1",
"Iloveyouxxxooo1",
"Boom**********!",
"IHATEPWORDS1!",
"ihatepwords1!",
"IHatePwords!",
"IHatePwords",
"my pass phrase does not need to pass tests",
"short pass phrase",
"x",
"x1",
"Zxcvbnmnas7",
"Zxcvbnmnas~",
"Zxcvbnmnas7~"
};
for (int i = 0; i < sizeof(passwords) / sizeof(passwords[0]); ++i) {
bool isPassphrase = strchr(passwords[i], ' ') && strlen(passwords[i]) >= MIN_PHRASE_LENGTH;
int optionalTestsPassed = 0;
if (OPTIONAL_TESTS_REQUIRED) {
if (strpbrk(passwords[i], "abcdefghijklmnopqrstuvwxyz")) {
optionalTestsPassed++;
}
}
bool isPasswordStrong = isStrongPassword(passwords[i]) &&
(isPassphrase || optionalTestsPassed >= MIN_OPTIONAL_TESTS_TO_PASS);
printTestResults(passwords[i], isPassphrase, optionalTestsPassed);
printf("Strong? : %s\n", isPasswordStrong ? "true" : "false");
printf("Total optional tests passed: %d\n", optionalTestsPassed);
printf("\n");
}
return 0;
}
bool isStrongPassword(char *password) {
if (strlen(password) < MIN_PASSWORD_LENGTH) {
return false;
}
if (strlen(password) > MAX_PASSWORD_LENGTH) {
return false;
}
for (int i = 0; i < strlen(password) - 2; ++i) {
if (password[i] == password[i + 1] && password[i + 1] == password[i + 2]) {
return false;
}
}
return true;
}
void printTestResults(char *password, bool isPassphrase, int optionalTestsPassed) {
printf("Proposed password: %s\n", password);
printf("Failed Tests : ");
if (strlen(password) < MIN_PASSWORD_LENGTH) {
printf("[1] ");
}
if (strlen(password) > MAX_PASSWORD_LENGTH) {
printf("[2] ");
}
for (int i = 0; i < strlen(password) - 2; ++i) {
if (password[i] == password[i + 1] && password[i + 1] == password[i + 2]) {
printf("[3] ");
break;
}
}
printf("\n");
printf("Passed Tests : ");
if (strlen(password) >= MIN_PASSWORD_LENGTH && strlen(password) <= MAX_PASSWORD_LENGTH &&
!(strlen(password) > MIN_PHRASE_LENGTH && isPassphrase)) {
printf("[1-3] ");
}
if (optionalTestsPassed >= MIN_OPTIONAL_TESTS_TO_PASS || !OPTIONAL_TESTS_REQUIRED) {
printf("[4-7] ");
}
printf("\n");
printf("Required Test Errors : [\n");
if (strlen(password) < MIN_PASSWORD_LENGTH) {
printf("'The password must be at least %d characters long.'\n", MIN_PASSWORD_LENGTH);
}
if (strlen(password) > MAX_PASSWORD_LENGTH) {
printf("'The password must be fewer than %d characters.'\n", MAX_PASSWORD_LENGTH);
}
for (int i = 0; i < strlen(password) - 2; ++i) {
if (password[i] == password[i + 1] && password[i + 1] == password[i + 2]) {
printf("'The password may not contain a sequence of three or more repeated characters.'\n");
break;
}
}
printf("]\n");
printf("Optional Test Errors : [\n");
if (OPTIONAL_TESTS_REQUIRED) {
if (!(strpbrk(password, "abcdefghijklmnopqrstuvwxyz"))) {
printf("'The password must contain at least one lowercase letter.'\n");
}
}
printf("]\n");
printf("Is a Pass phrase : %s\n", isPassphrase ? "true" : "false");
}
to generate a solution
a solution
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