/* * EMC SRVTELNET */ #include #include #include #include #include #include #include #define BINDADDR "127.0.0.1" #define TL 20 int main(int argc, char *argv[]) { int foo, len, sock; char *adr_ip = BINDADDR; int port = 5678; unsigned int addrlen; int connected; struct sockaddr_in addr; struct in_addr ia; FILE *fpin; char line[TL+5], *ptr; fprintf(stderr, "--- %s ---\n", argv[0]); sock = socket(AF_INET, SOCK_STREAM, 0); if (sock < 0) { perror(__FILE__ " start socket"); return -1; } #define S sizeof(struct sockaddr_in) memset(&addr, 0, S); addr.sin_family = AF_INET; addr.sin_port = htons(port); if (adr_ip && inet_aton(adr_ip, &ia)) { addr.sin_addr = ia; fprintf(stderr, "attached to %s\n", adr_ip); } if ((foo=bind(sock, (struct sockaddr *)&addr, S)) < 0) { perror(__FILE__ " fail on bind "); close(sock); return -2; } fprintf(stderr, "bind -> %d\n", foo); foo = listen(sock, 5); /* 5 is a bsd magic number */ if (foo) { perror(__FILE__ " no magic in listen "); return -3; } /* start of the endless loop */ for (;;) { fprintf(stderr, "accepting...\n"); addrlen = sizeof(struct sockaddr); connected = accept(sock, (struct sockaddr *)&addr, &addrlen); if (connected < 0) { perror(__FILE__ " accept"); return -1; } fprintf(stderr, "accept -> %d\n", connected); if (NULL==(fpin = fdopen(connected, "r+"))) { perror(__FILE__ " fdopen on connected"); return -3; } // fprintf(stderr, "fopened...\n"); while ( (ptr=fgets(line, TL, fpin)) ) { len = strlen(line); fprintf(stderr, " %3d | %s", len, line); for (foo=0; foo