Fix futimens error handling.

Fix a bug introduced in #242 noticed [here]: if `tv_usec` is out of
range, then properly return an error code.

[here]: https://github.com/WebAssembly/wasi-libc/commit/079adff840032c3455eb1cb34dc9ceaa0b2bfc0c#r69631767

diff --git a/libc-top-half/musl/src/stat/futimesat.c b/libc-top-half/musl/src/stat/futimesat.c
index 8ddcbb140aa413782a7864b1b0fb3f2edad5bf0f..c29b2b790ffc14b12fea225e243bc375e9135008 100644 (file)
--- a/libc-top-half/musl/src/stat/futimesat.c
+++ b/libc-top-half/musl/src/stat/futimesat.c
@@ -12,12 +12,14 @@ int __futimesat(int dirfd, const char *pathname, const struct timeval times[2])
        if (times) {
                int i;
                for (i=0; i<2; i++) {
-                       if (times[i].tv_usec >= 1000000ULL)
 #ifdef __wasilibc_unmodified_upstream // WASI has no syscall
+                       if (times[i].tv_usec >= 1000000ULL)
                                return __syscall_ret(-EINVAL);
 #else
+                       if (times[i].tv_usec >= 1000000ULL) {
                                errno = EINVAL;
                                return -1;
+                       }
 #endif
                        ts[i].tv_sec = times[i].tv_sec;
                        ts[i].tv_nsec = times[i].tv_usec * 1000;