diff options
Diffstat (limited to '3rdparty/winpcap/Examples-remote/misc/savedump.c')
-rw-r--r-- | 3rdparty/winpcap/Examples-remote/misc/savedump.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/3rdparty/winpcap/Examples-remote/misc/savedump.c b/3rdparty/winpcap/Examples-remote/misc/savedump.c new file mode 100644 index 00000000000..6316939bd63 --- /dev/null +++ b/3rdparty/winpcap/Examples-remote/misc/savedump.c @@ -0,0 +1,104 @@ +#include "pcap.h" + +/* prototype of the packet handler */ +void packet_handler(u_char *param, const struct pcap_pkthdr *header, const u_char *pkt_data); + +int main(int argc, char **argv) +{ +pcap_if_t *alldevs; +pcap_if_t *d; +int inum; +int i=0; +pcap_t *adhandle; +char errbuf[PCAP_ERRBUF_SIZE]; +pcap_dumper_t *dumpfile; + + + + /* Check command line */ + if(argc != 2) + { + printf("usage: %s filename", argv[0]); + return -1; + } + + /* Retrieve the device list on the local machine */ + if (pcap_findalldevs_ex(PCAP_SRC_IF_STRING, NULL, &alldevs, errbuf) == -1) + { + fprintf(stderr,"Error in pcap_findalldevs: %s\n", errbuf); + exit(1); + } + + /* Print the list */ + for(d=alldevs; d; d=d->next) + { + printf("%d. %s", ++i, d->name); + if (d->description) + printf(" (%s)\n", d->description); + else + printf(" (No description available)\n"); + } + + if(i==0) + { + printf("\nNo interfaces found! Make sure WinPcap is installed.\n"); + return -1; + } + + printf("Enter the interface number (1-%d):",i); + scanf_s("%d", &inum); + + if(inum < 1 || inum > i) + { + printf("\nInterface number out of range.\n"); + /* Free the device list */ + pcap_freealldevs(alldevs); + return -1; + } + + /* Jump to the selected adapter */ + for(d=alldevs, i=0; i< inum-1 ;d=d->next, i++); + + + /* Open the device */ + if ( (adhandle= pcap_open(d->name, // name of the device + 65536, // portion of the packet to capture + // 65536 guarantees that the whole packet will be captured on all the link layers + PCAP_OPENFLAG_PROMISCUOUS, // promiscuous mode + 1000, // read timeout + NULL, // authentication on the remote machine + errbuf // error buffer + ) ) == NULL) + { + fprintf(stderr,"\nUnable to open the adapter. %s is not supported by WinPcap\n", d->name); + /* Free the device list */ + pcap_freealldevs(alldevs); + return -1; + } + + /* Open the dump file */ + dumpfile = pcap_dump_open(adhandle, argv[1]); + + if(dumpfile==NULL) + { + fprintf(stderr,"\nError opening output file\n"); + return -1; + } + + printf("\nlistening on %s... Press Ctrl+C to stop...\n", d->description); + + /* At this point, we no longer need the device list. Free it */ + pcap_freealldevs(alldevs); + + /* start the capture */ + pcap_loop(adhandle, 0, packet_handler, (unsigned char *)dumpfile); + + return 0; +} + +/* Callback function invoked by libpcap for every incoming packet */ +void packet_handler(u_char *dumpfile, const struct pcap_pkthdr *header, const u_char *pkt_data) +{ + /* save the packet on the dump file */ + pcap_dump(dumpfile, header, pkt_data); +} |