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authorDenys Vlasenko2016-10-12 20:42:58 +0200
committerDenys Vlasenko2016-10-12 20:42:58 +0200
commit57727d478db55b25bdc33bb9067915b659605ae6 (patch)
tree8309c16618966df2c5c3b97bf1120031146257ce /networking/telnet.c
parent26d88d6bbda628f0005115bbe0f85722db267793 (diff)
downloadbusybox-57727d478db55b25bdc33bb9067915b659605ae6.zip
busybox-57727d478db55b25bdc33bb9067915b659605ae6.tar.gz
telnet: code shrink
put_iac2(w,c) is mostly used with constants, fold them into one arg function old new delta put_iac2_merged - 46 +46 telnet_main 1603 1583 -20 con_escape 285 257 -28 put_iac2 50 - -50 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 0/2 up/down: 46/-98) Total: -52 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/telnet.c')
-rw-r--r--networking/telnet.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/networking/telnet.c b/networking/telnet.c
index d2daf5c..1a6986b 100644
--- a/networking/telnet.c
+++ b/networking/telnet.c
@@ -311,15 +311,16 @@ static void put_iac(int c)
G.iacbuf[G.iaclen++] = c;
}
-static void put_iac2(byte wwdd, byte c)
+static void put_iac2_merged(unsigned wwdd_and_c)
{
if (G.iaclen + 3 > IACBUFSIZE)
iac_flush();
put_iac(IAC);
- put_iac(wwdd);
- put_iac(c);
+ put_iac(wwdd_and_c >> 8);
+ put_iac(wwdd_and_c & 0xff);
}
+#define put_iac2(wwdd,c) put_iac2_merged(((wwdd)<<8) + (c))
#if ENABLE_FEATURE_TELNET_TTYPE
static void put_iac_subopt(byte c, char *str)