diff options
Diffstat (limited to 'source/client/dnsbrowse.c')
| -rw-r--r-- | source/client/dnsbrowse.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/source/client/dnsbrowse.c b/source/client/dnsbrowse.c index 5e3a4de9cff..aa2fb22ad65 100644 --- a/source/client/dnsbrowse.c +++ b/source/client/dnsbrowse.c @@ -81,6 +81,11 @@ static void do_smb_resolve(struct mdns_smbsrv_result *browsesrv) TALLOC_FREE(fdset); } + if (mdnsfd < 0 || mdnsfd >= FD_SETSIZE) { + errno = EBADF; + break; + } + fdsetsz = howmany(mdnsfd + 1, NFDBITS) * sizeof(fd_mask); fdset = TALLOC_ZERO(ctx, fdsetsz); FD_SET(mdnsfd, fdset); @@ -183,6 +188,13 @@ int do_smb_browse(void) fdsetsz = howmany(mdnsfd + 1, NFDBITS) * sizeof(fd_mask); fdset = TALLOC_ZERO(ctx, fdsetsz); + + if (mdnsfd < 0 || mdnsfd >= FD_SETSIZE) { + errno = EBADF; + TALLOC_FREE(ctx); + return 1; + } + FD_SET(mdnsfd, fdset); tv.tv_sec = 1; |