abc/lwip
1
0
Fork 0
mirror of https://git.savannah.nongnu.org/git/lwip.git synced 2025-08-04 21:44:38 +08:00
Code Issues Packages Projects Releases Wiki Activity

udp: Fix possible NULL pointer dereference, update comments

Browse Source
This commit is contained in:
Dirk Ziegelmeier 2016-03-02 23:10:43 +01:00
parent babb247e2a
commit f3132c5290
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/core/udp.c
View File

@ -1121,8 +1121,9 @@ udp_new(void)
} }
/** /**
* Create a UDP PCB for specific IP type. See IPADDR_TYPE_XX definitions. * Create a UDP PCB for specific IP type.
* *
* @param IP address type, see IPADDR_TYPE_XX definitions.
* @return The UDP PCB which was created. NULL if the PCB data structure * @return The UDP PCB which was created. NULL if the PCB data structure
* could not be allocated. * could not be allocated.
* *
@ -1134,8 +1135,10 @@ udp_new_ip_type(u8_t type)
struct udp_pcb *pcb; struct udp_pcb *pcb;
pcb = udp_new(); pcb = udp_new();
#if LWIP_IPV4 && LWIP_IPV6 #if LWIP_IPV4 && LWIP_IPV6
IP_SET_TYPE_VAL(pcb->local_ip, type); if(pcb != NULL) {
IP_SET_TYPE_VAL(pcb->remote_ip, type); IP_SET_TYPE_VAL(pcb->local_ip, type);
IP_SET_TYPE_VAL(pcb->remote_ip, type);
}
#else #else
LWIP_UNUSED_ARG(type); LWIP_UNUSED_ARG(type);
#endif /* LWIP_IPV4 && LWIP_IPV6 */ #endif /* LWIP_IPV4 && LWIP_IPV6 */