ftpd: shrink by 33 bytes

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

1 files changed, 11 insertions, 5 deletions

diff --git a/networking/ftpd.c b/networking/ftpd.c
index 7605d48f3..375cc0ca5 100644
--- a/networking/ftpd.c
+++ b/networking/ftpd.c
@@ -981,17 +981,23 @@ handle_stou(void)
 static uint32_t
 cmdio_get_cmd_and_arg(void)
 {
-        size_t len;
+        int len;
         uint32_t cmdval;
         char *cmd;
 
         alarm(G.timeout);
 
         free(G.ftp_cmd);
-        len = 8 * 1024; /* Paranoia. Peer may send 1 gigabyte long cmd... */
-        G.ftp_cmd = cmd = xmalloc_fgets_str_len(stdin, "\r\n", &len);
-        if (!cmd)
-                exit(0);
+        {
+                /* Paranoia. Peer may send 1 gigabyte long cmd... */
+                /* Using separate len_on_stk instead of len optimizes
+                 * code size (allows len to be in CPU register) */
+                size_t len_on_stk = 8 * 1024;
+                G.ftp_cmd = cmd = xmalloc_fgets_str_len(stdin, "\r\n", &len_on_stk);
+                if (!cmd)
+                        exit(0);
+                len = len_on_stk;
+        }
 
         /* De-escape telnet: 0xff,0xff => 0xff */
         /* RFC959 says that ABOR, STAT, QUIT may be sent even during