make sem_wait and sem_timedwait interruptible by signals

[musl] / src / stdio / setvbuf.c

diff --git a/src/stdio/setvbuf.c b/src/stdio/setvbuf.c
index b6b9b01..06ea296 100644 (file)
--- a/src/stdio/setvbuf.c
+++ b/src/stdio/setvbuf.c
@@ -14,7 +14,7 @@ int setvbuf(FILE *restrict f, char *restrict buf, int type, size_t size)
                f->buf_size = 0;
        } else {
                if (buf && size >= UNGET) {
-                       f->buf = (void *)buf;
+                       f->buf = (void *)(buf + UNGET);
                        f->buf_size = size - UNGET;
                }
                if (type == _IOLBF && f->buf_size)