diff options
Diffstat (limited to 'resolv/res_send.c')
| -rw-r--r-- | resolv/res_send.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/resolv/res_send.c b/resolv/res_send.c index 60d8ef2fb9..cde6a845d5 100644 --- a/resolv/res_send.c +++ b/resolv/res_send.c @@ -601,6 +601,11 @@ read_len: if ((long) timeout.tv_sec <= 0) timeout.tv_sec = 1; timeout.tv_usec = 0; + if (s+1 > FD_SETSIZE) { + Perror(stderr, "s+1 > FD_SETSIZE", EMFILE); + res_close(); + goto next_ns; + } wait: FD_ZERO(&dsmask); FD_SET(s, &dsmask); |