Re: [squid-users] Squid redirect problem

Your helper always exits after the first response.

You must continue reading until EOF.

Example template for a Squid helper: (all kinds)

int main(int argc, char **argv)
{
    char buff[MAX_BUFF];
    setbuf(stdout, NULL);

    // Initialization

    while(fgets(buff, MAX_BUFF, stdin) != NULL) {
       // Process request in buff and return response to stdout.
    }

    return 0;
}

Regards
Henrik

On Sat, 31 Jan 2004, Deepa D wrote:

> Hi,
> Sorry the delay.
> I have pasted the code to this mail.
> Kindly let me know if there is any problem in it.
>
> int sig_hup = 0;
>
> int main (int argc, char *argv[]) {
>
> int sd, rc;
> struct sockaddr_in localAddr, servAddr;
> struct hostent *h;
>
> char buff[MAX_BUFF] = "";
> int nread = 0;
>
> h = gethostbyname("127.0.0.1");
> if(h == NULL) {
> log(LOG_ERROR, " Client - unknown host\n ");
> exit(1);
> }
>
> servAddr.sin_family = h->h_addrtype;
> memcpy((char *) &servAddr.sin_addr.s_addr,
> h->h_addr_list[0], h->h_length);
> servAddr.sin_port = htons(SERVER_PORT);
>
> while(!sig_hup) {
>
> if(fgets(buff, MAX_BUFF, stdin) != NULL) {
>
> /* create socket */
> sd = socket(AF_INET, SOCK_STREAM, 0);
> if(sd < 0) {
> log(LOG_ERROR, " Client - cannot open socket\n ");
> exit(1);
> }
>
>
> /* bind any port number */
> localAddr.sin_family = AF_INET;
> localAddr.sin_addr.s_addr = htonl(INADDR_ANY);
> localAddr.sin_port = htons(0);
>
> rc = bind(sd, (struct sockaddr *) &localAddr,
> sizeof(localAddr));
> if(rc < 0) {
> log(LOG_ERROR, " Client - cannot bind to
> SERVER_PORT\n ");
> exit(1);
> }
>
>
> rc = connect(sd, (struct sockaddr *) &servAddr,
> sizeof(servAddr));
> if(rc < 0) {
> log(LOG_ERROR, " Client - could not connect to the
> server\n ");
> exit(1);
> }
>
> if(strchr(buff, '\n') == NULL) {
> /* Append a new line character so that the data
> gets flushed. */
> strcat(buff,"\n");
> }
> if(write(sd , buff , strlen(buff)) < 0) {
> log(LOG_ERROR," Client - error while writing to
> server.\n ");
> } else {
> logger1(LOG_INFO," Client - wrote to server = ",
> buff);
> }
>
> memset(buff,'\0',MAX_BUFF);
> nread = read(sd, buff, MAX_BUFF);
> puts(buff);
> fflush(stdout);
> close(sd);
> }
>
> // The client exits when it reads an EOF from stdin.
> exit(0);
>
> }
> *buff = '\0';
> return 0;
>
> }
>
> void contentfilter_HUP(int signal) {
>
> /* exciting bit of code this one :-) */
> sig_hup = 1;
> log(LOG_INFO, "sigHUP received.
> Reconfiguring....\n");
> }
>
>
> Regards,
> Deepa
>
> --- Henrik Nordstrom <hno@squid-cache.org> wrote: >
> On Mon, 19 Jan 2004, Deepa D wrote:
> >
> > > FATAL: The redirector helpers are crashing
> > too
> > > rapidly, need help!
> > > But, when I don't do exit(0) in my C code once
> > > read from stdin returns null, I don't have this
> > > problem.
> >
> > Then I think you are exiting even if the read does
> > not return EOF.
> >
> > If you want you can post your helper source and we
> > take a look.
> >
> > Regards
> > Henrik
> >
>
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Received on Sun Feb 01 2004 - 08:51:10 MST