example:socket-example: Fix build warning

ajaybhargav · ajaybhargav · commit d7dd9b109f76 · 2020-06-04T20:55:42.000+05:30
Signed-off-by: Ajay Bhargav &lt;contact@rickeyworld.info&gt;
diff --git a/examples/socket-example/src/main.c b/examples/socket-example/src/main.c
@@ -130,15 +130,15 @@ static int status_callback(int id, int event, int err)
 	return 0;
 }
 
-static int recv_callback(int sockid, const unsigned char *buf, int len)
+static int recv_callback(int sockid, const void *buf, int len)
 {
 	printf("Data received (%d bytes):\n", len);
-	printf("%s", buf);
+	printf("%s", (char *)buf);
 
 	return 0;
 }
 
-static int xmit_callback(int sockid, int result, unsigned char *buf, int len, void *arg)
+static int xmit_callback(int sockid, int result, const void *buf, int len, void *arg)
 {
 	printf("Data send status: %d\n", result);
 

Original file line number	Diff line number	Diff line change
`@@ -130,15 +130,15 @@ static int status_callback(int id, int event, int err)`
`130`	`130`	`return 0;`
`131`	`131`	`}`
`132`	`132`
`133`		`-static int recv_callback(int sockid, const unsigned char *buf, int len)`
	`133`	`+static int recv_callback(int sockid, const void *buf, int len)`
`134`	`134`	`{`
`135`	`135`	`printf("Data received (%d bytes):\n", len);`
`136`		`- printf("%s", buf);`
	`136`	`+ printf("%s", (char *)buf);`
`137`	`137`
`138`	`138`	`return 0;`
`139`	`139`	`}`
`140`	`140`
`141`		`-static int xmit_callback(int sockid, int result, unsigned char buf, int len, void arg)`
	`141`	`+static int xmit_callback(int sockid, int result, const void buf, int len, void arg)`
`142`	`142`	`{`
`143`	`143`	`printf("Data send status: %d\n", result);`
`144`	`144`