diff options
Diffstat (limited to 'sysdeps/mach/hurd/if_index.c')
| -rw-r--r-- | sysdeps/mach/hurd/if_index.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/sysdeps/mach/hurd/if_index.c b/sysdeps/mach/hurd/if_index.c index 6479458a56..4303c938a8 100644 --- a/sysdeps/mach/hurd/if_index.c +++ b/sysdeps/mach/hurd/if_index.c @@ -1,5 +1,5 @@ /* Find network interface names and index numbers. Hurd version. - Copyright (C) 2000-2016 Free Software Foundation, Inc. + Copyright (C) 2000-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -37,6 +37,12 @@ __if_nametoindex (const char *ifname) if (fd < 0) return 0; + if (strlen (ifname) >= IFNAMSIZ) + { + __set_errno (ENODEV); + return 0; + } + strncpy (ifr.ifr_name, ifname, IFNAMSIZ); if (__ioctl (fd, SIOCGIFINDEX, &ifr) < 0) { @@ -187,7 +193,6 @@ libc_hidden_weak (if_indextoname) #if 0 void -internal_function __protocol_available (int *have_inet, int *have_inet6) { *have_inet = _hurd_socket_server (PF_INET, 0) != MACH_PORT_NULL; |