struct pcap: Update buffer type from "void *" to "u_char *"

This change should avoid these cppcheck warnings:
pcap-hurd.c:77:18: warning: 'p->buffer' is of type 'void *'. When using
void pointers in calculations, the behaviour is undefined.
[arithOperationsOnVoidPointer]
 pkt = p->buffer + offsetof(struct net_rcv_msg, packet)
                 ^
pcap-hurd.c:78:8: warning: 'p->buffer+offsetof(struct net_rcv_msg,packet)'
is of type 'void *'. When using void pointers in calculations, the
behaviour is undefined. [arithOperationsOnVoidPointer]
       + sizeof(struct packet_header) - ETH_HLEN;
       ^
pcap-hurd.c:79:25: warning: 'p->buffer' is of type 'void *'. When using
void pointers in calculations, the behaviour is undefined.
[arithOperationsOnVoidPointer]
 memmove(pkt, p->buffer + offsetof(struct net_rcv_msg, header),
                        ^

Remove some '(u_char *)' casts accordingly.

1 files changed, 1 insertions, 1 deletions

diff --git a/pcap-snit.c b/pcap-snit.c
index 3f4e69d7..0bd4dabe 100644
--- a/pcap-snit.c
+++ b/pcap-snit.c
@@ -133,7 +133,7 @@ pcap_read_snit(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
 			    errno, "pcap_read");
 			return (-1);
 		}
-		bp = (u_char *)p->buffer;
+		bp = p->buffer;
 	} else
 		bp = p->bp;