FILE *
gdb_fopen_cloexec (const char *filename, const char *opentype)
{
- FILE *result = NULL;
+ FILE *result;
/* Probe for "e" support once. But, if we can tell the operating
system doesn't know about close on exec mode "e" without probing,
skip it. E.g., the Windows runtime issues an "Invalid parameter
passed to C runtime function" OutputDebugString warning for
unknown modes. Assume that if O_CLOEXEC is zero, then "e" isn't
supported. */
- static int fopen_e_ever_failed = O_CLOEXEC == 0;
+ static int fopen_e_ever_failed_einval = O_CLOEXEC == 0;
- if (!fopen_e_ever_failed)
+ if (!fopen_e_ever_failed_einval)
{
char *copy;
this path. */
strcat (copy, "e");
result = fopen (filename, copy);
- }
- if (result == NULL)
- {
- /* Fallback. */
- result = fopen (filename, opentype);
- if (result != NULL)
- fopen_e_ever_failed = 1;
+ if (result == NULL && errno == EINVAL)
+ {
+ result = fopen (filename, opentype);
+ if (result != NULL)
+ fopen_e_ever_failed_einval = 1;
+ }
}
+ else
+ result = fopen (filename, opentype);
if (result != NULL)
maybe_mark_cloexec (fileno (result));