95 lines
2.8 KiB
C
95 lines
2.8 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/server.h"
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void setSockAddress(int argc, char *argv[], struct sockaddr_in * address);
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int main(int argc, char *argv[]) {
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int fd;
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if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == 0)
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printSystemError("Server: socket()");
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int opt = 1;
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if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)))
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printSystemError("Server: setsockopt()");
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struct sockaddr_in address;
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setSockAddress(argc, argv, &address);
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if (bind(fd, (struct sockaddr *) &address, sizeof(address)) < 0)
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printSystemError("Server: bind()");
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if (listen(fd, MAX_PEND_REQ) < 0)
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printSystemError("Server: listen()");
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int addrlen = sizeof(address), fdAux;
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if ((fdAux = accept(fd, (struct sockaddr *) &address, (socklen_t *) &addrlen)) < 0)
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printSystemError("Server: accept()");
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if (setvbuf(stdout, NULL, _IONBF, 0) != 0)
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printSystemError("Server: setvbuf()");
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startChallenge(fdAux);
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close(fdAux);
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close(fd);
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return EXIT_SUCCESS;
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}
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void startChallenge(int fd) {
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FILE * stream;
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if ((stream = fdopen(fd, "r")) == NULL)
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printSystemError("Server: fdopen()");
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int challengeCount = 0;
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char * output = NULL;
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while (challengeCount < MAX_CHALLENGES) {
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challenge_t currentChallenge = challenges[challengeCount];
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printf("\033[1;1H\033[2J");
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if (genChallenge(stream, &output, currentChallenge)) {
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challengeCount++;
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}
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else {
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printf("Respuesta incorrecta: %s\n", output);
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sleep(TIME_SLEEP);
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}
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free(output);
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}
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printf("\033[1;1H\033[2J");
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printf("Felicitaciones, finalizaron el juego. Ahora deberán implementar el servidor que se comporte como el servidor provisto\n");
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if (stream != NULL)
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fclose(stream);
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return;
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}
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void setSockAddress(int argc, char *argv[], struct sockaddr_in * address) {
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address->sin_family = AF_INET;
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if (argc == 1) {
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address->sin_addr.s_addr = inet_addr(ADDRESS);
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address->sin_port = htons(PORT);
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}
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int opt;
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while ((opt = getopt(argc, argv, "a:p:")) != -1) {
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switch (opt) {
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case 'a':
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if (optarg[0] == '-')
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printError("Usage: server [-a address] [-p port]\n");
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address->sin_addr.s_addr = inet_addr(optarg);
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break;
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case 'p':
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if (optarg[0] == '-')
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printError("Usage: server [-a address] [-p port]\n");
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address->sin_port = htons(atoi(optarg));
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break;
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default:
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printError("Usage: server [-a address] [-p port]\n");
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}
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}
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} |