diff options
Diffstat (limited to 'usr.bin/whereis/whereis.c')
| -rw-r--r-- | usr.bin/whereis/whereis.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/usr.bin/whereis/whereis.c b/usr.bin/whereis/whereis.c index 8c75f5e..4e39cda 100644 --- a/usr.bin/whereis/whereis.c +++ b/usr.bin/whereis/whereis.c @@ -38,7 +38,7 @@ static char copyright[] = #endif /* not lint */ #ifndef lint -static char sccsid[] = "@(#)whereis.c 8.1 (Berkeley) 6/6/93"; +static char sccsid[] = "@(#)whereis.c 8.3 (Berkeley) 5/4/95"; #endif /* not lint */ #include <sys/param.h> @@ -50,6 +50,7 @@ static char sccsid[] = "@(#)whereis.c 8.1 (Berkeley) 6/6/93"; #include <stdio.h> #include <stdlib.h> #include <string.h> +#include <unistd.h> void usage __P((void)); @@ -72,6 +73,9 @@ main(argc, argv) argc -= optind; argv += optind; + if (argc == 0) + usage(); + /* Retrieve the standard path. */ mib[0] = CTL_USER; mib[1] = USER_CS_PATH; @@ -110,6 +114,7 @@ main(argc, argv) void usage() { - (void)fprintf(stderr, "whereis: program ...\n"); + + (void)fprintf(stderr, "usage: whereis program [...]\n"); exit (1); } |
