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Remove custom memory allocation layer in pgcrypto

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PX_OWN_ALLOC was intended as a way to disable the use of palloc(), and
over the time new palloc() or equivalent calls have been added like in
32984d8, making this extra layer losing its original purpose.  This
simplifies on the way some code paths to use palloc0() rather than
palloc() followed by memset(0).

Author: Daniel Gustafsson
Discussion: https://postgr.es/m/A5BFAA1A-B2E8-4CBC-895E-7B1B9475A527@yesql.se
This commit is contained in:
Michael Paquier
2020-09-25 10:25:55 +09:00
parent a45bc8a4f6
commit ca7f8e2b86
17 changed files with 106 additions and 143 deletions
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21
contrib/pgcrypto/px-hmac.c
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@ -57,8 +57,7 @@ hmac_init(PX_HMAC *h, const uint8 *key, unsigned klen)
PX_MD *md = h->md;
bs = px_md_block_size(md);
keybuf = px_alloc(bs);
memset(keybuf, 0, bs);
keybuf = palloc0(bs);
if (klen > bs)
{
@ -76,7 +75,7 @@ hmac_init(PX_HMAC *h, const uint8 *key, unsigned klen)
}
px_memset(keybuf, 0, bs);
px_free(keybuf);
pfree(keybuf);
px_md_update(md, h->p.ipad, bs);
}
@ -108,7 +107,7 @@ hmac_finish(PX_HMAC *h, uint8 *dst)
bs = px_md_block_size(md);
hlen = px_md_result_size(md);
buf = px_alloc(hlen);
buf = palloc(hlen);
px_md_finish(md, buf);
@ -118,7 +117,7 @@ hmac_finish(PX_HMAC *h, uint8 *dst)
px_md_finish(md, dst);
px_memset(buf, 0, hlen);
px_free(buf);
pfree(buf);
}
static void
@ -131,9 +130,9 @@ hmac_free(PX_HMAC *h)
px_memset(h->p.ipad, 0, bs);
px_memset(h->p.opad, 0, bs);
px_free(h->p.ipad);
px_free(h->p.opad);
px_free(h);
pfree(h->p.ipad);
pfree(h->p.opad);
pfree(h);
}
@ -158,9 +157,9 @@ px_find_hmac(const char *name, PX_HMAC **res)
return PXE_HASH_UNUSABLE_FOR_HMAC;
}
h = px_alloc(sizeof(*h));
h->p.ipad = px_alloc(bs);
h->p.opad = px_alloc(bs);
h = palloc(sizeof(*h));
h->p.ipad = palloc(bs);
h->p.opad = palloc(bs);
h->md = md;
h->result_size = hmac_result_size;