mesg: use rpmatch to yes/no question

Signed-off-by: Sami Kerola <kerolasa@iki.fi>

diff --git a/term-utils/mesg.c b/term-utils/mesg.c
index 13d4fb757ec67c98e2c58e95d0cec415c306eae2..4fad6f57a1d571a049555c5838a31e98c36d70f3 100644 (file)
--- a/term-utils/mesg.c
+++ b/term-utils/mesg.c
@@ -66,6 +66,8 @@
 static void __attribute__ ((__noreturn__)) usage(FILE * out)
 {
        fputs(_("\nUsage:\n"), out);
+       /* TRANSLATORS: this program uses for y and n rpmatch(3),
+        * which means they can be translated.  */
        fprintf(out,
              _(" %s [options] [y | n]\n"), program_invocation_short_name);
 
@@ -127,8 +129,8 @@ int main(int argc, char *argv[])
                return IS_NOT_ALLOWED;
        }
 
-       switch (*argv[0]) {
-       case 'y':
+       switch (rpmatch(argv[0])) {
+       case 1:
 #ifdef USE_TTY_GROUP
                if (chmod(tty, sb.st_mode | S_IWGRP) < 0)
 #else
@@ -138,14 +140,16 @@ int main(int argc, char *argv[])
                if (verbose)
                        puts(_("write access to your terminal is allowed"));
                return IS_ALLOWED;
-       case 'n':
+       case 0:
                if (chmod(tty, sb.st_mode & ~(S_IWGRP|S_IWOTH)) < 0)
                         err(MESG_EXIT_FAILURE, _("change %s mode failed"), tty);
                if (verbose)
                        puts(_("write access to your terminal is denied"));
                return IS_NOT_ALLOWED;
-       default:
-               warnx(_("invalid argument: %c"), *argv[0]);
+        case -1:
+               warnx(_("invalid argument: %s"), argv[0]);
                usage(stderr);
+        default:
+                abort();
        }
 }