prevent stupid Ambiquous Command error on null input line

[unix-history] / usr / src / usr.sbin / lpr / lpc / lpc.c

diff --git a/usr/src/usr.sbin/lpr/lpc/lpc.c b/usr/src/usr.sbin/lpr/lpc/lpc.c
index 47f8621..47b84e9 100644 (file)
--- a/usr/src/usr.sbin/lpr/lpc/lpc.c
+++ b/usr/src/usr.sbin/lpr/lpc/lpc.c
@@ -22,7 +22,7 @@ char copyright[] =
 #endif /* not lint */
 
 #ifndef lint
 #endif /* not lint */
 
 #ifndef lint

-static char sccsid[] = "@(#)lpc.c      5.8 (Berkeley) %G%";
+static char sccsid[] = "@(#)lpc.c      5.9 (Berkeley) %G%";

 #endif /* not lint */
 
 /*
 #endif /* not lint */
 
 /*


@@ -107,7 +107,7 @@ cmdscanner(top)
                }
                if (fgets(cmdline, sizeof(cmdline), stdin) == 0)
                        quit();
                }
                if (fgets(cmdline, sizeof(cmdline), stdin) == 0)
                        quit();

-               if (cmdline[0] == 0)
+               if (cmdline[0] == 0 || cmdline[0] == '\n')

                        break;
                makeargv();
                c = getcmd(margv[0]);
                        break;
                makeargv();
                c = getcmd(margv[0]);