-# serial 2
+# serial 4
# Determine whether getcwd aborts when the length of the working directory
# name is unusually large. Any length between 4k and 16k trigger the bug
# when using glibc-2.4.90-9 or older.
rm -rf confdir-14B---
# Arrange for deletion of the temporary directory this test creates.
ac_clean_files="$ac_clean_files confdir-14B---"
+ dnl Please keep this in sync with tests/test-getcwd.c.
AC_RUN_IFELSE(
[AC_LANG_SOURCE(
[[
size_t d;
/* The bug is triggered when PATH_MAX < getpagesize (), so skip
- this relative expensive and invasive test if that's not true. */
+ this relatively expensive and invasive test if that's not true. */
if (getpagesize () <= PATH_MAX)
return 0;
cwd = getcwd (NULL, 0);
if (cwd == NULL)
- return 0;
+ return 2;
initial_cwd_len = strlen (cwd);
free (cwd);
while (0 < d--)
{
if (chdir ("..") < 0)
- break;
+ {
+ fail = 5;
+ break;
+ }
rmdir (dir_name);
}
- return 0;
+ return fail;
}
]])],
[gl_cv_func_getcwd_abort_bug=no],
- [gl_cv_func_getcwd_abort_bug=yes],
+ dnl A "regular" nonzero return does not indicate this bug.
+ dnl An abort will provoke an exit code of something like 134 (128 + 6).
+ [test $? -gt 128 \
+ && gl_cv_func_getcwd_abort_bug=yes \
+ || gl_cv_func_getcwd_abort_bug=no],
[gl_cv_func_getcwd_abort_bug=yes])
])
AS_IF([test $gl_cv_func_getcwd_abort_bug = yes], [$1], [$2])