Add a few more functions

functions

@@ -1,7 +1,16 @@
 int|access|const char* pathname, int mode|pathname, mode
+FILE*|fdopen|int fd, const char* mode|fd, mode
+FILE*|fopen|const char* path, const char* mode|path, mode
+int|fputs|const char* s, FILE* stream|s, stream
 void|free|void* ptr|ptr
+FILE*|freopen|const char* path, const char* mode, FILE* stream|path, mode, stream
+size_t|fread|void* ptr, size_t size, size_t nmemb, FILE* stream|ptr, size, nmemb, stream
+size_t|fwrite|const void* ptr, size_t size, size_t nmemb, FILE* stream|ptr, size, nmemb, stream
+char*|getcwd|char* buf, size_t size|buf, size
+char*|get_current_dir_name|void|
 void*|malloc|size_t size|size
 int|poll|struct pollfd* fds, nfds_t nfds, int timeout|fds, nfds, timeout
+int|pthread_create|pthread_t* thread, const pthread_attr_t* attr, void*(* start_routine)(void*), void* arg|thread, attr, start_routine, arg
 int|pthread_join|pthread_t thread, void** value_ptr|thread, value_ptr
 int|pthread_mutex_lock|pthread_mutex_t* mutex|mutex
 void*|realloc|void* ptr, size_t size|ptr, size