Hi.
The code for remote capture uses WinPcap and pthreads and it runs just fine.
So, I tend to exclude any incompatibility between pthreads and WinPcap.
fulvio
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> Sent: venerdi 11 giugno 2004 1.44
> To: [EMAIL PROTECTED]
> Subject: [WinPcap-users] pthreads and winpcap
>
>
> I am really having some troubles with running pthreads and
> winpcap together. I am
> pretty rusty on my C so maybe it is just my stupidity, but I keep
> getting lockups and
> my program will not run.
>
> Basically, what I am trying to do is start a thread that will
> send out some packets
> once every few seconds. While this thread is going the main
> program calls the
> pcap_loop and is listening for certain replies.
>
> Unfortunately, when I put the pthread_create call in the program
> and run it, it just
> locks up on that call(ran it in gdb). I comment out that line
> and the listening part runs
> just fine.
>
> I am compiling with cygwin (gcc 3.3.1) on a windows 98 box. I
> have tried with both
> the beta winpcap and v3 (both act the same).
>
> I am pasting a stripped down program that demonstrates my problem:
>
> =============== test.c =================
>
> #include <pcap.h>
> #include <remote-ext.h>
> #include <pthread.h>
>
> void *test(void *blah)
> {
> int done=0;
> while(!done){
> printf("Who: %s\n", (char *)blah);
> sleep(5);
> }
> }
>
> int main(){
> pcap_if_t *alldevs;
> pcap_if_t *d;
> int inum;
> int i=0;
> pcap_t *adhandle;
> char errbuf[PCAP_ERRBUF_SIZE];
>
> pthread_t t1;
> pthread_create(&t1, NULL,&test,(void *)"numero uno");
> pthread_join(t1,NULL);
>
> /* Retrieve the device list */
> if (pcap_findalldevs(&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;
> }
> int ptret;
> return 0;
>
> }
>
> =================================
>
> I compile with these:
>
> gcc test.c -mno-cygwin -c -o test.o -I ../../include -DWPCAP
> gcc -mno-cygwin -L ../../lib -o test.exe test.o -lwpcap -lpthread
>
> Any ideas?? My brain damage??
>
> Thanks,
>
> Eric Testegen
>
>
>
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