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-rw-r--r--src/stdio/fseek.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/stdio/fseek.c b/src/stdio/fseek.c
index 67d75f7a..439308f7 100644
--- 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;
}