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60ed3690ac
Continue walking the code path for the >4GB `hash-object --literally`
test to the hash algorithm step for LLP64 systems.
This patch lets the SHA1DC code use `size_t`, making it compatible with
LLP64 data models (as used e.g. by Windows).
The interested reader of this patch will note that we adjust the
signature of the `git_SHA1DCUpdate()` function without updating _any_
call site. This certainly puzzled at least one reviewer already, so here
is an explanation:
This function is never called directly, but always via the macro
`platform_SHA1_Update`, which is usually called via the macro
`git_SHA1_Update`. However, we never call `git_SHA1_Update()` directly
in `struct git_hash_algo`. Instead, we call `git_hash_sha1_update()`,
which is defined thusly:
static void git_hash_sha1_update(git_hash_ctx *ctx,
const void *data, size_t len)
{
git_SHA1_Update(&ctx->sha1, data, len);
}
i.e. it contains an implicit downcast from `size_t` to `unsigned long`
(before this here patch). With this patch, there is no downcast anymore.
With this patch, finally, the t1007-hash-object.sh "files over 4GB hash
literally" test case is fixed.
Signed-off-by: Philip Oakley <philipoakley@iee.email>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
28 lines
716 B
C
28 lines
716 B
C
/* Plumbing with collition-detecting SHA1 code */
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#ifdef DC_SHA1_EXTERNAL
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#include <sha1dc/sha1.h>
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#elif defined(DC_SHA1_SUBMODULE)
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#include "sha1collisiondetection/lib/sha1.h"
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#else
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#include "sha1dc/sha1.h"
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#endif
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#ifdef DC_SHA1_EXTERNAL
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void git_SHA1DCInit(SHA1_CTX *);
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#else
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#define git_SHA1DCInit SHA1DCInit
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#endif
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void git_SHA1DCFinal(unsigned char [20], SHA1_CTX *);
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void git_SHA1DCUpdate(SHA1_CTX *ctx, const void *data, size_t len);
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#define platform_SHA_IS_SHA1DC /* used by "test-tool sha1-is-sha1dc" */
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#ifndef platform_SHA_CTX
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#define platform_SHA_CTX SHA1_CTX
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#define platform_SHA1_Init git_SHA1DCInit
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#define platform_SHA1_Update git_SHA1DCUpdate
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#define platform_SHA1_Final git_SHA1DCFinal
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#endif
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