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net: fix bsd route alignment issues

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This commit is contained in:
Richard Aas 2014-03-25 07:57:28 +00:00
parent 10e7c015b1
commit 28fdd25afc
1 changed files with 13 additions and 3 deletions
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16
src/net/bsd/brt.c
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@ -13,10 +13,20 @@
#include <net/if.h>
/*
* See https://github.com/boundary/libdnet/blob/master/src/route-bsd.c
*/
#ifdef __APPLE__
#define RT_MSGHDR_ALIGNMENT sizeof(uint32_t)
#else
#define RT_MSGHDR_ALIGNMENT sizeof(unsigned long)
#endif
#define ROUNDUP(a) \
((a) > 0 \
? (1 + (((size_t)(a) - 1) | (sizeof(long) - 1))) \
: sizeof(long))
? (1 + (((size_t)(a) - 1) | (RT_MSGHDR_ALIGNMENT - 1))) \
: RT_MSGHDR_ALIGNMENT)
int net_rt_list(net_rt_h *rth, void *arg)
@ -46,7 +56,7 @@ int net_rt_list(net_rt_h *rth, void *arg)
}
for (p = buf; p<buf+l; p += rt->rtm_msglen) {
rt = (struct rt_msghdr *)p;
rt = (void *)p; /* buffer is aligned */
sa = (struct sockaddr *)(rt + 1);
if (rt->rtm_type != RTM_GET)