*: optimize most of isXXXXX() macros

   text    data     bss     dec     hex filename
 824164     453    6812  831429   cafc5 busybox_old
 823730     453    6812  830995   cae13 busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 7 insertions, 4 deletions

diff --git a/loginutils/login.c b/loginutils/login.c
index ed2ab7f80..70e85625b 100644
--- a/loginutils/login.c
+++ b/loginutils/login.c
@@ -225,19 +225,22 @@ static void get_username_or_die(char *buf, int size_buf)
         /* skip whitespace */
         do {
                 c = getchar();
-                if (c == EOF) exit(EXIT_FAILURE);
+                if (c == EOF)
+                        exit(EXIT_FAILURE);
                 if (c == '\n') {
-                        if (!--cntdown) exit(EXIT_FAILURE);
+                        if (!--cntdown)
+                                exit(EXIT_FAILURE);
                         goto prompt;
                 }
-        } while (isspace(c));
+        } while (isspace(c)); /* maybe isblank? */
 
         *buf++ = c;
         if (!fgets(buf, size_buf-2, stdin))
                 exit(EXIT_FAILURE);
         if (!strchr(buf, '\n'))
                 exit(EXIT_FAILURE);
-        while (isgraph(*buf)) buf++;
+        while ((unsigned char)*buf > ' ')
+                buf++;
         *buf = '\0';
 }