103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
// This is a personal academic project. Dear PVS-Studio, please check it.
|
|
// PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
|
|
#include "include/challenges.h"
|
|
|
|
char genChallenge(FILE * stream, char ** output, challenge_t challenge) {
|
|
printf("------------- DESAFIO -------------\n");
|
|
printf("%s\n\n", challenge.message);
|
|
|
|
if (challenge.function != NULL)
|
|
challenge.function();
|
|
|
|
printf("\n----- PREGUNTA PARA INVESTIGAR -----\n");
|
|
printf("%s\n\n", challenge.question);
|
|
|
|
size_t linecap = 0;
|
|
if (getline(output, &linecap, stream) < 0)
|
|
printSystemError("Challenges: getline()");
|
|
|
|
return !strcmp(*output, challenge.flag);
|
|
}
|
|
|
|
void writeChallenge() {
|
|
if (write(0xd, "................................La respuesta es fk3wfLCm3QvS\n", 61) < 0)
|
|
perror("write");
|
|
}
|
|
|
|
void filterChallenge() {
|
|
char * ans = "La respuesta es K5n2UFfpFMUN\n";
|
|
int i = 0;
|
|
while (ans[i] != '\0') {
|
|
double fdRandom = getUniform(1);
|
|
if (fdRandom <= 0.25) {
|
|
if (write(STDOUT_FILENO, ans + i++, 1) < 0)
|
|
printSystemError("Challenges: write()");
|
|
}
|
|
else {
|
|
for (int j = (int) getUniform(3) + 1; j > 0; j--) {
|
|
int randNum = (int) getUniform(90);
|
|
char randLetter = (char) (randNum + '#');
|
|
if (write(STDERR_FILENO, &randLetter, 1) < 0)
|
|
printSystemError("Challenges: write()");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void questionChallenge() {
|
|
if (write(STDOUT_FILENO, "\33[30;40m", 8) < 0)
|
|
printSystemError("Challenges: write()");
|
|
if (write(STDOUT_FILENO, "La respuesta es BUmyYq5XxXGt", 28) < 0)
|
|
printSystemError("Challenges: write()");
|
|
if (write(STDOUT_FILENO, "\33[0m\n", 5) < 0)
|
|
printSystemError("Challenges: write()");
|
|
}
|
|
|
|
void quineChallenge() {
|
|
int outputGCC = system("gcc quine.c -o quine");
|
|
if (outputGCC < 0)
|
|
printSystemError("Challenges: system()");
|
|
|
|
if (outputGCC == 0) {
|
|
printf("¡Genial!, ya lograron meter un programa en quine.c, veamos si hace lo que corresponde.\n");
|
|
int outputDIFF = system("./quine | diff quine.c -");
|
|
if (outputDIFF < 0)
|
|
printSystemError("Challenges: system()");
|
|
|
|
if (outputDIFF == 0)
|
|
printf("La respuesta es chin_chu_lan_cha\n");
|
|
else
|
|
printf("\ndiff encontró diferencias.\n");
|
|
|
|
if (system("rm quine") < 0)
|
|
printSystemError("Challenges: system()");
|
|
}
|
|
else
|
|
printf("\nENTER para reintentar.\n");
|
|
}
|
|
|
|
void gdbme() {
|
|
if (getpid() == MAGIC_VAL)
|
|
printf("La respuesta es gdb_rules\n");
|
|
else
|
|
printf("ENTER para reintentar.\n");
|
|
}
|
|
|
|
void gdbChallenge() {
|
|
gdbme();
|
|
}
|
|
|
|
void boxMuller(double * normal) {
|
|
double random1 = getUniform(1);
|
|
double random2 = getUniform(1);
|
|
*normal = sqrt(-2 * log(random1)) * cos(2 * M_PI * random2);
|
|
}
|
|
|
|
void normalChallenge() {
|
|
for (int i = 0; i < MAX_NORMALS; i++) {
|
|
double normal = 0;
|
|
boxMuller(&normal);
|
|
printf("%.6f ", normal);
|
|
}
|
|
printf("\n");
|
|
} |