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stdlib: Adapt tst-environ to ubsan 

The test explicits checks for passing a null argument to a
function with argument nonnull attribute.
This commit is contained in:
Adhemerval Zanella 2025-04-23 11:44:24 -03:00
parent afe9efb47c
commit ba3e3ae80b
1 changed files with 19 additions and 11 deletions
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30
stdlib/tst-environ.c
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@ -26,6 +26,24 @@
char putenv_val[100] = VAR "=some longer value";
static int
__attribute_disable_ubsan__
check_null_argument (void)
{
/* This deliberately tests supplying a null pointer to a function whose
argument is marked __attribute__ ((nonnull)). */
DIAG_PUSH_NEEDS_COMMENT;
DIAG_IGNORE_NEEDS_COMMENT(5, "-Wnonnull");
errno = 0;
if (unsetenv (NULL) >= 0 || errno != EINVAL)
{
puts ("unsetenv #1 failed");
return 1;
}
DIAG_POP_NEEDS_COMMENT;
return 0;
}
static int
do_test (void)
{
@ -189,17 +207,7 @@ do_test (void)
result = 1;
}
/* This deliberately tests supplying a null pointer to a function whose
argument is marked __attribute__ ((nonnull)). */
DIAG_PUSH_NEEDS_COMMENT;
DIAG_IGNORE_NEEDS_COMMENT(5, "-Wnonnull");
errno = 0;
if (unsetenv (NULL) >= 0 || errno != EINVAL)
{
puts ("unsetenv #1 failed");
result = 1;
}
DIAG_POP_NEEDS_COMMENT;
result = check_null_argument ();
errno = 0;
if (unsetenv ("") >= 0 || errno != EINVAL)