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| author | Jo-Philipp Wich <jo@mein.io> | 2022-03-06 23:08:35 +0100 |
|---|---|---|
| committer | Jo-Philipp Wich <jo@mein.io> | 2022-03-06 23:24:13 +0100 |
| commit | 0e859748a4e00cfad3bc50e386a06622066ee994 (patch) | |
| tree | 80cf6cef4a3530876156c02a1685342736853f15 | |
| parent | 05bd7edd7a101aa09a54371aa34bc22646b75bee (diff) | |
uloop: clear errno before integer conversion attempts
In some cases, errno contains stale values from prior function invocations
which might lead to random failures in uc_uloop_run(), uc_uloop_timer_set()
and uc_uloop_timer().
Solve this issue by explicitly initializing errno to 0.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
| -rw-r--r-- | lib/uloop.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/uloop.c b/lib/uloop.c index 8b5adff..bc57336 100644 --- a/lib/uloop.c +++ b/lib/uloop.c @@ -111,6 +111,7 @@ uc_uloop_run(uc_vm_t *vm, size_t nargs) uc_value_t *timeout = uc_fn_arg(0); int t, rv; + errno = 0; t = timeout ? (int)ucv_int64_get(timeout) : -1; if (errno) @@ -182,6 +183,7 @@ uc_uloop_timer_set(uc_vm_t *vm, size_t nargs) if (!timer || !*timer) err_return(EINVAL); + errno = 0; t = timeout ? (int)ucv_int64_get(timeout) : -1; if (errno) @@ -243,6 +245,7 @@ uc_uloop_timer(uc_vm_t *vm, size_t nargs) uc_value_t *res; int t; + errno = 0; t = timeout ? ucv_int64_get(timeout) : -1; if (errno) |