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