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MINOR: net_helper: add functions for pointers

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Add two functions to read/write pointer values to/from vectors.
This commit is contained in:
Frédéric Lécaille 2021-07-06 14:34:46 +02:00 committed by Amaury Denoyelle
parent ed9119f39e
commit 9621565b74
1 changed files with 16 additions and 0 deletions
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16
include/haproxy/net_helper.h
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@ -75,6 +75,22 @@ static inline void write_u64(void *p, const uint64_t u64)
u->u64 = u64;
}
/* Read a void* in native host order */
static inline void *read_ptr(const void *p)
{
const union { void *ptr; } __attribute__((packed))*u = p;
return u->ptr;
}
/* Write a void* in native host order */
static inline void write_ptr(void *p, const void *ptr)
{
if (sizeof(ptr) == 4)
return write_u32(p, (uintptr_t)ptr);
else
return write_u64(p, (uintptr_t)ptr);
}
/* Read a possibly wrapping number of bytes <bytes> into destination <dst>. The
* first segment is composed of <s1> bytes at p1. The remaining byte(s), if any,
* are read from <p2>. <s1> may be zero and may also be larger than <bytes>. The