/* * printmsg.c: print a message on the console */ #include #include main(argc, argv) int argc; char *argv[]; { char *message; if (argc < 2) { fprintf(stderr, "usage: %s \n", argv[0]); exit(1); } message = argv[1]; if (!printmessage(message)) { fprintf(stderr, "%s: sorry, couldn't print your message\n", argv[0]); exit(1); } printf("Message delivered!\n"); } /* * Print a message to the console. * Return a boolean indicating whether the message was actually printed. */ printmessage(msg) char *msg; { FILE *f; f = fopen(_PATH_CONSOLE, "w"); if (f == NULL) { return (0); } fprintf(f, "%s\n", msg); fclose(f); return(1); }