#include "stdio_impl.h"
+#include <limits.h>
+#include <errno.h>
off_t __ftello_unlocked(FILE *f)
{
- off_t pos = f->seek(f, 0, SEEK_CUR);
- if (pos < 0) {
- FUNLOCK(f);
- return pos;
- }
+ off_t pos = f->seek(f, 0,
+ (f->flags & F_APP) && f->wpos != f->wbase
+ ? SEEK_END : SEEK_CUR);
+ if (pos < 0) return pos;
+
/* Adjust for data in buffer. */
- return pos - (f->rend - f->rpos) + (f->wpos - f->wbase);
+ if (f->rend)
+ pos += f->rpos - f->rend;
+ else if (f->wbase)
+ pos += f->wpos - f->wbase;
+ return pos;
}
off_t __ftello(FILE *f)
}
weak_alias(__ftello, ftello);
-
-LFS64(ftello);