Closes #2405.
---
cpukit/libnetworking/rtems/rtems_dhcp.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/cpukit/libnetworking/rtems/rtems_dhcp.c
b/cpukit/libnetworking/rtems/rtems_dhcp.c
index c938ee0..87be238 100644
--- a/cpukit/libnetworking/rtems/rtems_dhcp.c
+++ b/cpukit/libnetworking/rtems/rtems_dhcp.c
@@ -394,15 +394,23 @@ process_options (unsigned char *optbuf, int optbufSize)
printf ("dhcpc: hostname >= %d bytes\n", MAXHOSTNAMELEN);
len = MAXHOSTNAMELEN-1;
}
- if (sethostname (p, len) < 0)
+ if (sethostname (p, len) < 0) {
printf ("dhcpc: can't set host name");
+ }
if (dhcp_hostname != NULL)
{
- dhcp_hostname = realloc (dhcp_hostname, len);
- strncpy (dhcp_hostname, p, len);
- }
- else
+ char *tmp = realloc (dhcp_hostname, len);
+ if (tmp != NULL) {
+ dhcp_hostname = tmp;
+ strncpy (dhcp_hostname, p, len);
+ } else { /* realloc failed */
+ printf ("dhcpc: realloc failed (%s:%d)", __FILE__, __LINE__);
+ free (dhcp_hostname);
+ dhcp_hostname = NULL;
+ }
+ } else { /* dhcp_hostname == NULL */
dhcp_hostname = strndup (p, len);
+ }
break;
case 7:
--
2.5.1
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