printmsg.c revision 1906 
1/* @(#)printmsg.c	2.1 88/08/11 4.0 RPCSRC */
2/*
3 * printmsg.c: print a message on the console
4 */
5#include <stdio.h>
6
7main(argc, argv)
8	int argc;
9	char *argv[];
10{
11	char *message;
12
13	if (argc < 2) {
14		fprintf(stderr, "usage: %s <message>\n", argv[0]);
15		exit(1);
16	}
17	message = argv[1];
18
19	if (!printmessage(message)) {
20		fprintf(stderr, "%s: sorry, couldn't print your message\n",
21			argv[0]);
22		exit(1);
23	}
24	printf("Message delivered!\n");
25}
26
27/*
28 * Print a message to the console.
29 * Return a boolean indicating whether the message was actually printed.
30 */
31printmessage(msg)
32	char *msg;
33{
34	FILE *f;
35
36	f = fopen("/dev/console", "w");
37	if (f == NULL) {
38		return (0);
39	}
40	fprintf(f, "%s\n", msg);
41	fclose(f);
42	return(1);
43}
44