64 lines
2.0 KiB
C
64 lines
2.0 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/sockets.h"
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int createSocket() {
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int fd;
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if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
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printSystemError("Sockets: socket()");
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return fd;
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}
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void setSockOptions(int fd) {
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int opt = 1;
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if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0)
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printSystemError("Sockets: setsockopt()");
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}
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int bindAndGetSocket(int fd, struct sockaddr_in *address) {
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if (bind(fd, (struct sockaddr *) address, sizeof(*address)) < 0)
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printSystemError("Sockets: bind()");
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if (listen(fd, MAX_PEND_REQ) < 0)
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printSystemError("Sockets: 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("Sockets: accept()");
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return fdAux;
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}
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void connectToSocket(int fd, struct sockaddr_in *address) {
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if (connect(fd, (struct sockaddr *) address, sizeof(*address)) < 0)
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printSystemError("Sockets: connect()");
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}
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void closeSocket(int fd) {
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if (close(fd) < 0)
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printSystemError("Sockets: close()");
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}
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void setSockAddress(int argc, char *argv[], struct sockaddr_in * address, in_addr_t inAddress) {
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address->sin_family = AF_INET;
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address->sin_addr.s_addr = htonl(inAddress);
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address->sin_port = htons(PORT);
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int opt;
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opterr = 0;
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while ((opt = getopt(argc, argv, "a:p:")) != -1) {
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if (optarg[0] == '-')
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printError("Usage: server [-a address] [-p port]\n");
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switch (opt) {
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case 'a':
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if (inet_pton(AF_INET, optarg, &address->sin_addr) <= 0)
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printError("Sockets: inet_pton()");
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break;
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case 'p':
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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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} |