diff options
Diffstat (limited to 'pcap-sita.c')
-rw-r--r-- | pcap-sita.c | 49 |
1 files changed, 26 insertions, 23 deletions
diff --git a/pcap-sita.c b/pcap-sita.c index 658362c7..8634922f 100644 --- a/pcap-sita.c +++ b/pcap-sita.c @@ -917,25 +917,19 @@ static int pcap_read_acn(pcap_t *handle, int max_packets, pcap_handler callback, return 1; } -pcap_t *pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, char *ebuf) { - pcap_t *handle; +static int pcap_activate_sita(pcap_t *handle) { int fd; - /* Allocate a handle for this session. */ - - handle = malloc(sizeof(*handle)); - if (handle == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s", - pcap_strerror(errno)); - return NULL; + if (handle->opt.rfmon) { + /* + * No monitor mode on SITA devices (they're not Wi-Fi + * devices). + */ + return PCAP_ERROR_RFMON_NOTSUP; } /* Initialize some components of the pcap structure. */ - memset(handle, 0, sizeof(*handle)); - handle->snapshot = snaplen; - handle->md.timeout = to_ms; - handle->inject_op = pcap_inject_acn; handle->setfilter_op = pcap_setfilter_acn; handle->setdirection_op = pcap_setdirection_acn; @@ -946,12 +940,11 @@ pcap_t *pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, handle->read_op = pcap_read_acn; handle->stats_op = pcap_stats_acn; - fd = acn_open_live(device, ebuf, &handle->linktype); - if (fd == -1) { - free(handle); - return NULL; - } - handle->md.clear_promisc = promisc; + fd = acn_open_live(handle->opt.source, handle->errbuf, + &handle->linktype); + if (fd == -1) + return PCAP_ERROR; + handle->md.clear_promisc = handle->md.promisc; handle->fd = fd; handle->bufsize = handle->snapshot; @@ -959,11 +952,10 @@ pcap_t *pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, handle->buffer = malloc(handle->bufsize + handle->offset); if (!handle->buffer) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, + snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "malloc: %s", pcap_strerror(errno)); pcap_close_acn(handle); - free(handle); - return NULL; + return PCAP_ERROR; } /* @@ -972,5 +964,16 @@ pcap_t *pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, */ handle->selectable_fd = handle->fd; - return handle; + return 0; +} + +pcap_t *pcap_create(const char *device, char *ebuf) { + pcap_t *p; + + p = pcap_create_common(device, ebuf); + if (p == NULL) + return (NULL); + + p->activate_op = pcap_activate_sita; + return (p); } |