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patch 9.1.1778: sha256() treats empty blob and null blob differently

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Problem:  sha256() treats empty blob and null blob differently
          (after 9.1.1774).
Solution: Handle null blob the same as empty blob (zeertzjq).

closes: #18341

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
zeertzjq
2025-09-20 14:37:40 +00:00
committed by Christian Brabandt
parent 841becdc2d
commit 2f3b7ea19a
3 changed files with 16 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
src/evalfunc.c
View File

@@ -11760,12 +11760,9 @@ f_sha256(typval_T *argvars, typval_T *rettv)
if (argvars[0].v_type == VAR_BLOB)
{
blob_T *blob = argvars[0].vval.v_blob;
if (blob != NULL)
{
p = (char_u *)blob->bv_ga.ga_data;
len = blob->bv_ga.ga_len;
rettv->vval.v_string = vim_strsave(sha256_bytes(p, len, NULL, 0));
}
p = blob != NULL ? (char_u *)blob->bv_ga.ga_data : (char_u *)"";
len = blob != NULL ? blob->bv_ga.ga_len : 0;
rettv->vval.v_string = vim_strsave(sha256_bytes(p, len, NULL, 0));
}
else
{

21
src/testdir/test_sha256.vim
View File

@@ -4,24 +4,25 @@ CheckFeature cryptv
CheckFunction sha256
function Test_sha256()
" test for empty string:
" tests for string:
" empty string
call assert_equal('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855', sha256(""))
"'test for 1 char:
" null string
call assert_equal('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855', sha256(test_null_string()))
" string with 1 char
call assert_equal('ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb', sha256("a"))
"
"test for 3 chars:
" string with 3 chars
call assert_equal('ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad', "abc"->sha256())
" test for contains meta char:
" string containing meta char
call assert_equal('807eff6267f3f926a21d234f7b0cf867a86f47e07a532f15e8cc39ed110ca776', sha256("foo\nbar"))
" test for contains non-ascii char:
" string containing non-ascii char
call assert_equal('5f78c33274e43fa9de5659265c1d917e25c03722dcb0b8d27db8d5feaa813953', sha256("\xde\xad\xbe\xef"))
" test for blob:
" tests for blob:
" empty blob
call assert_equal('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855', sha256(0z))
" null blob
call assert_equal('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855', sha256(test_null_blob()))
" blob with single byte
call assert_equal('ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb', sha256(0z61))
" blob with "abc"

2
src/version.c
View File

@@ -724,6 +724,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1778,
/**/
1777,
/**/