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common: Fix logic for certain recsel conditions.

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* common/recsel.c (recsel_select): Change processing of NULL values.
* common/t-recsel.c (run_test_2): Adjust for this change.  Also a type
fix for s/"letter"/"letters"/.
--

The getval function may return NULL which indicates that there is no
useful value available.  For example because the propertyname is not
defined for some external context (e.g. in gpg the packet type).  This
also required to fix the test for boolean tests of a non existing
property name.

Reported-by: shniubobo at gnupg-users on 2025-04-18.
This commit is contained in:
Werner Koch 2025-04-30 15:13:11 +02:00
parent 9b7c067717
commit 3ea8cab6a4
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GPG Key ID: E3FDFF218E45B72B
2 changed files with 8 additions and 4 deletions
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6
common/recsel.c
View File

@ -506,7 +506,11 @@ recsel_select (recsel_expr_t selector,
{
value = getval? getval (cookie, se->name) : NULL;
if (!value)
value = "";
{
se = se->next;
result = 0;
continue;
}
if (!*value)
{

6
common/t-recsel.c
View File

@ -306,7 +306,7 @@ run_test_2 (void)
FREEEXPR();
ADDEXPR ("nothing -z");
if (!recsel_select (se, test_2_getval, NULL))
if (recsel_select (se, test_2_getval, NULL))
fail (0, 0);
FREEEXPR();
ADDEXPR ("nothing -n");
@ -334,7 +334,7 @@ run_test_2 (void)
FREEEXPR();
ADDEXPR ("nothing -f");
if (!recsel_select (se, test_2_getval, NULL))
if (recsel_select (se, test_2_getval, NULL))
fail (0, 0);
FREEEXPR();
ADDEXPR ("nothing -t");
@ -369,7 +369,7 @@ run_test_2 (void)
fail (0, 0);
FREEEXPR();
ADDEXPR ("letter -f");
ADDEXPR ("letters -f");
if (!recsel_select (se, test_2_getval, NULL))
fail (0, 0);
FREEEXPR();