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libnetworking: Send the hostname if set in the network configuration.

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This allows a suitably configured DHCP server with DDNS to enter
the name into the DNS table making it addressiable via it's host name.
This commit is contained in:
Chris Johns
2015-05-20 15:21:53 +10:00
parent f5d4570fe6
commit 083e6d6b4b
1 changed files with 16 additions and 2 deletions
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18
cpukit/libnetworking/rtems/rtems_dhcp.c
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@@ -1,4 +1,4 @@
/* /*
* DCHP client for RTEMS * DCHP client for RTEMS
* Andrew Bythell, <abythell@nortelnetworks.com> * Andrew Bythell, <abythell@nortelnetworks.com>
* based on and uses subroutines from c/src/libnetworking/nfs/bootp_subr.c * based on and uses subroutines from c/src/libnetworking/nfs/bootp_subr.c
@@ -543,6 +543,20 @@ dhcp_discover_req (struct dhcp_packet* call,
call->vend[len++] = 1; call->vend[len++] = 1;
call->vend[len++] = DHCP_DISCOVER; call->vend[len++] = DHCP_DISCOVER;
/*
* If a host name is set add it to the request.
*/
if (rtems_bsdnet_config.hostname && \
(strlen (rtems_bsdnet_config.hostname) > 1) &&
(strlen (rtems_bsdnet_config.hostname) < 32)) {
call->vend[len++] = DHCP_HOST;
call->vend[len++] = strlen (rtems_bsdnet_config.hostname);
memcpy (&call->vend[len],
rtems_bsdnet_config.hostname,
strlen (rtems_bsdnet_config.hostname));
len += strlen (rtems_bsdnet_config.hostname);
}
/* /*
* DHCP Parameter request list * DHCP Parameter request list
*/ */
@@ -880,7 +894,7 @@ dhcp_init (int update_files)
struct proc *procp = NULL; struct proc *procp = NULL;
clean_dns_entries(); clean_dns_entries();
/* /*
* If we are to update the files create the root * If we are to update the files create the root
* file structure. * file structure.