support archs with no renameat syscall, only renameat2

[musl] / src / stdio / fseek.c

diff --git a/src/stdio/fseek.c b/src/stdio/fseek.c
index 8d9da44..439308f 100644 (file)
--- a/src/stdio/fseek.c
+++ b/src/stdio/fseek.c
@@ -3,10 +3,10 @@
 int __fseeko_unlocked(FILE *f, off_t off, int whence)
 {
        /* Adjust relative offset for unread data in buffer, if any. */
-       if (whence == SEEK_CUR) off -= f->rend - f->rpos;
+       if (whence == SEEK_CUR && f->rend) off -= f->rend - f->rpos;
 
        /* Flush write buffer, and report error on failure. */
-       if (f->wpos > f->wbase) {
+       if (f->wpos != f->wbase) {
                f->write(f, 0, 0);
                if (!f->wpos) return -1;
        }
@@ -15,10 +15,7 @@ int __fseeko_unlocked(FILE *f, off_t off, int whence)
        f->wpos = f->wbase = f->wend = 0;
 
        /* Perform the underlying seek. */
-       if (f->seek(f, off, whence) < 0) {
-               f->flags |= F_ERR;
-               return -1;
-       }
+       if (f->seek(f, off, whence) < 0) return -1;
 
        /* If seek succeeded, file is seekable and we discard read buffer. */
        f->rpos = f->rend = 0;
@@ -43,4 +40,4 @@ int fseek(FILE *f, long off, int whence)
 
 weak_alias(__fseeko, fseeko);
 
-LFS64(fseeko);
+weak_alias(fseeko, fseeko64);