diff options
Diffstat (limited to 'networking')
| -rw-r--r-- | networking/arping.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/networking/arping.c b/networking/arping.c index 2b7a43c..9d2c671 100644 --- a/networking/arping.c +++ b/networking/arping.c @@ -66,6 +66,13 @@ struct globals { count = -1; \ } while (0) +// If GNUisms are not available... +//static void *mempcpy(void *_dst, const void *_src, int n) +//{ +// memcpy(_dst, _src, n); +// return (char*)_dst + n; +//} + static int send_pack(struct in_addr *src_addr, struct in_addr *dst_addr, struct sockaddr_ll *ME, struct sockaddr_ll *HE) @@ -81,20 +88,15 @@ static int send_pack(struct in_addr *src_addr, ah->ar_pln = 4; ah->ar_op = option_mask32 & ADVERT ? htons(ARPOP_REPLY) : htons(ARPOP_REQUEST); - memcpy(p, &ME->sll_addr, ah->ar_hln); - p += ME->sll_halen; - - memcpy(p, src_addr, 4); - p += 4; + p = mempcpy(p, &ME->sll_addr, ah->ar_hln); + p = mempcpy(p, src_addr, 4); if (option_mask32 & ADVERT) - memcpy(p, &ME->sll_addr, ah->ar_hln); + p = mempcpy(p, &ME->sll_addr, ah->ar_hln); else - memcpy(p, &HE->sll_addr, ah->ar_hln); - p += ah->ar_hln; + p = mempcpy(p, &HE->sll_addr, ah->ar_hln); - memcpy(p, dst_addr, 4); - p += 4; + p = mempcpy(p, dst_addr, 4); err = sendto(sock_fd, buf, p - buf, 0, (struct sockaddr *) HE, sizeof(*HE)); if (err == p - buf) { |