-/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+/* Truncate a file given by name. Generic POSIX.1 version.
+ Copyright (C) 1995-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
/* Truncate PATH to LENGTH bytes. */
int
-truncate (path, length)
- const char *path;
- off_t length;
+__truncate (const char *path, off_t length)
{
int fd, ret, save;
- fd = open (path, O_WRONLY);
+ fd = __open (path, O_WRONLY | (length == 0 ? O_TRUNC : 0));
if (fd < 0)
return -1;
- ret = ftruncate (fd, length);
+ if (length == 0)
+ ret = 0;
+ else
+ ret = __ftruncate (fd, length);
save = errno;
- (void) close (fd);
+ (void) __close (fd);
if (ret < 0)
__set_errno (save);
return ret;
}
+weak_alias (__truncate, truncate)