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Remove some redundant logic

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This commit is contained in:
Gregory Nutt 2016-02-08 16:19:21 -06:00
parent 1482732f18
commit 3df8b716dc
1 changed files with 2 additions and 60 deletions
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62
nshlib/nsh_netcmds.c
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@ -628,36 +628,6 @@ static int nsh_foreach_netdev(nsh_netdev_callback_t callback,
}
#endif
/****************************************************************************
* Name: cmd_get
****************************************************************************/
#if defined(CONFIG_NET_ARP) && !defined(CONFIG_NSH_DISABLE_ARP)
int mac_nibble(unsigned int ch, unsigned int *nibble)
{
unsigned int ret;
if (ch >= '0' && ch <= '9')
{
ret = ch - '0';
}
else if (ch >= 'A' && ch <= 'F')
{
ret = ch - 'A' + 10;
}
else if (ch >= 'a' && ch <= 'f')
{
ret = ch - 'a' + 10;
}
else
{
return -EINVAL;
}
*nibble = ret;
return OK;
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
@ -1197,11 +1167,9 @@ int cmd_nslookup(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
#if defined(CONFIG_NET_ARP) && !defined(CONFIG_NSH_DISABLE_ARP)
int cmd_arp(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *ptr;
struct sockaddr_in inaddr;
struct ether_addr mac;
int ret;
int i;
/* Forms:
*
@ -1252,10 +1220,6 @@ int cmd_arp(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
}
else if (strcmp(argv[1], "-s") == 0)
{
unsigned int nibble;
unsigned int byte;
char delim;
if (argc != 4)
{
goto errout_missing;
@ -1263,31 +1227,9 @@ int cmd_arp(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
/* Convert the MAC address string to a binary */
for (i = 0, ptr = argv[3]; i < ETHER_ADDR_LEN; i++)
if (!netlib_ethaddrconv(argv[3], mac.ether_addr_octet))
{
ret = mac_nibble(*ptr++, &nibble);
if (ret < 0)
{
goto errout_invalid;
}
byte = nibble << 4;
ret = mac_nibble(*ptr++, &nibble);
if (ret < 0)
{
goto errout_invalid;
}
byte |= nibble;
delim = (i >= (ETHER_ADDR_LEN-1)) ? '\0' : ':';
if (*ptr++ != delim)
{
goto errout_invalid;
}
mac.ether_addr_octet[i] = byte;
goto errout_invalid;
}
/* Add the address mapping to the arp table */