ensure distinct query id for parallel A and AAAA queries in resolver

[musl] / src / stdio / __stdio_write.c

diff --git a/src/stdio/__stdio_write.c b/src/stdio/__stdio_write.c
index 63d9c85..d2d8947 100644 (file)
--- a/src/stdio/__stdio_write.c
+++ b/src/stdio/__stdio_write.c
@@ -1,4 +1,5 @@
 #include "stdio_impl.h"
+#include <sys/uio.h>
 
 size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len)
 {
@@ -10,10 +11,13 @@ size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len)
        size_t rem = iov[0].iov_len + iov[1].iov_len;
        int iovcnt = 2;
        ssize_t cnt;
-       f->wpos = f->wbase;
        for (;;) {
                cnt = syscall(SYS_writev, f->fd, iov, iovcnt);
-               if (cnt == rem) return len;
+               if (cnt == rem) {
+                       f->wend = f->buf + f->buf_size;
+                       f->wpos = f->wbase = f->buf;
+                       return len;
+               }
                if (cnt < 0) {
                        f->wpos = f->wbase = f->wend = 0;
                        f->flags |= F_ERR;