diff options
Diffstat (limited to 'contrib/libpcap/fad-win32.c')
| -rw-r--r-- | contrib/libpcap/fad-win32.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/contrib/libpcap/fad-win32.c b/contrib/libpcap/fad-win32.c index 91b0ef9..8144fbb 100644 --- a/contrib/libpcap/fad-win32.c +++ b/contrib/libpcap/fad-win32.c @@ -32,7 +32,7 @@ #ifndef lint static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/fad-win32.c,v 1.11 2005/01/29 00:52:22 guy Exp $ (LBL)"; + "@(#) $Header: /tcpdump/master/libpcap/fad-win32.c,v 1.11.2.1 2005/09/01 22:07:41 risso Exp $ (LBL)"; #endif #ifdef HAVE_CONFIG_H @@ -224,12 +224,22 @@ pcap_findalldevs(pcap_if_t **alldevsp, char *errbuf) ULONG NameLength; char *name; - PacketGetAdapterNames(NULL, &NameLength); + if(!PacketGetAdapterNames(NULL, &NameLength) && NameLength == 0) + { + /* + * If PacketGetAdapterNames *and* sets the lenght of the buffer to zero, + * it means there was an error. + */ + snprintf(errbuf, PCAP_ERRBUF_SIZE, "PacketGetAdapterNames failed: %s", pcap_win32strerror()); + *alldevsp = NULL; + return -1; + } if (NameLength > 0) AdaptersName = (char*) malloc(NameLength); else { + snprintf(errbuf, PCAP_ERRBUF_SIZE, "no adapters found."); *alldevsp = NULL; return 0; } |
