4/8

wandun/src/main/cpp/utils.c

@@ -13,6 +13,7 @@
 #include "wd_syscall.h"
 #include "syscall.h"
 #include "fcntl.h"
+#include "errno.h"
 
 IMPORTWDSYSCALL
 
@@ -149,12 +150,9 @@ int read_file(const char *file_path, const char *mode, char *r_buf, size_t r_len
 }
 
 int is_file_exists(const char *file_path) {
-    int res;
-    int fd = WDSYSCALL(SYS_openat, AT_FDCWD, file_path, O_RDONLY, 0);
-    if(fd == -1) res = 0;
-    else {
-        WDSYSCALL(SYS_close, fd);
-        res = 1;
-    }
-    return res;
+    int fd = WDSYSCALL(SYS_faccessat, AT_FDCWD, file_path, R_OK, 0);
+    int err = errno;
+    if(fd == -1) return 0;
+    WDSYSCALL(SYS_close, fd);
+    return 1;
 }