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Not calling memcpy with n=0.

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This commit is contained in:
Maria Matejka 2019-08-14 10:28:23 +02:00
parent 124d860f64
commit d607205486
2 changed files with 10 additions and 1 deletions
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9
lib/string.h
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@ -72,6 +72,15 @@ bstrcmp(const char *s1, const char *s2)
return !s2 - !s1; return !s2 - !s1;
} }
static inline void *
bmemcpy(void *dest, const void *src, size_t n)
{
if (n)
return memcpy(dest, src, n);
else
return dest;
}
#define ROUTER_ID_64_LENGTH 23 #define ROUTER_ID_64_LENGTH 23
#endif #endif

2
proto/bgp/bgp.h
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@ -552,7 +552,7 @@ static inline void
bgp_set_attr_data(ea_list **to, struct linpool *pool, uint code, uint flags, void *data, uint len) bgp_set_attr_data(ea_list **to, struct linpool *pool, uint code, uint flags, void *data, uint len)
{ {
struct adata *a = lp_alloc_adata(pool, len); struct adata *a = lp_alloc_adata(pool, len);
memcpy(a->data, data, len); bmemcpy(a->data, data, len);
bgp_set_attr(to, pool, code, flags, (uintptr_t) a); bgp_set_attr(to, pool, code, flags, (uintptr_t) a);
} }