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hash: allow unsigned int != size_t in sha256

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Our bundled SHA256 implementation passes a `size_t` as an `unsigned
int`. Stop doing that.
This commit is contained in:
Edward Thomson
2025-01-02 12:03:58 +00:00
parent 338e6fb681
commit ae9971347e
1 changed files with 14 additions and 4 deletions
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18
src/util/hash/builtin.c
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@@ -32,13 +32,23 @@ int git_hash_sha256_init(git_hash_sha256_ctx *ctx)
return 0;
}
int git_hash_sha256_update(git_hash_sha256_ctx *ctx, const void *data, size_t len)
int git_hash_sha256_update(git_hash_sha256_ctx *ctx, const void *_data, size_t len)
{
const unsigned char *data = _data;
GIT_ASSERT_ARG(ctx);
if (SHA256Input(&ctx->c, data, len)) {
git_error_set(GIT_ERROR_SHA, "SHA256 error");
return -1;
while (len > 0) {
unsigned int chunk = (len > UINT_MAX) ? UINT_MAX : (unsigned int)len;
if (SHA256Input(&ctx->c, data, chunk)) {
git_error_set(GIT_ERROR_SHA, "SHA256 error");
return -1;
}
data += chunk;
len -= chunk;
}
return 0;
}