Commit 733e989

committed

reduce storage consumption of ping command for C33

1 parent f032b82 commit 733e989Copy full SHA for 733e989

File tree

-2

lines changed

-2

lines changed

Lines changed: 6 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,6 @@`
`1`	`1`	`#include "CNetIf.h"`
`2`	`2`	`#include <functional>`
	`3`	`+#include <stdlib.h>`
`3`	`4`	`#include "lwip/include/lwip/raw.h"`
`4`	`5`	`#include "lwip/include/lwip/icmp.h"`
`5`	`6`	`#include "lwip/include/lwip/ip_addr.h"`
`@@ -23,7 +24,9 @@ static u8_t icmp_receive_callback(void arg, struct raw_pcb pcb, struct pbuf *p`
`23`	`24`	`struct icmp_echo_hdr *iecho;`
`24`	`25`	`(void)(pcb);`
`25`	`26`	`(void)(addr);`
`26`		`- LWIP_ASSERT("p != NULL", p != NULL);`
	`27`	`+ if(p == NULL) {`
	`28`	`+ return 0; /* don't consume the packet */`
	`29`	`+ }`
`27`	`30`
`28`	`31`	`recv_callback_data* request = (recv_callback_data*)arg;`
`29`	`32`	`if ((p->tot_len < (PBUF_IP_HLEN + sizeof(struct icmp_echo_hdr))) \|\|`
`@@ -164,7 +167,8 @@ int CLwipIf::ping(IPAddress ip, uint8_t ttl)`
`164`	`167`
`165`	`168`	`/* initialize callback data for a new request */`
`166`	`169`	`memset(&requestCbkData, 0, sizeof(recv_callback_data));`
`167`		`- requestCbkData.seqNum = (uint16_t)random(0xffff);`
	`170`	`+ srand(millis());`
	`171`	`+ requestCbkData.seqNum = (uint16_t)rand()%65535;`
`168`	`172`
`169`	`173`	`/* Create a raw socket */`
`170`	`174`	`struct raw_pcb* s = raw_new(IP_PROTO_ICMP);`

Comments

(0)