John Doe wrote:
Hi,I have a little problem with my external_acl C program. Everything works fine with a php version, but my original C version, for some tricky reason, does not... Tested both from the console and they seem to behave exactly in the same way... I am calling either program with the same syntax: external_acl_type filter children=8 concurrency=0 ttl=0 negative_ttl=0 %PATH filter The following in PHP works fine with squid: while (!feof(STDIN)) { $url = fgets(STDIN); fwrite(STDERR, 'filter: url='.$url."\n"); fwrite(STDOUT, 'OK user=allowed'."\n"); fwrite(STDERR, 'filter: end of while...'."\n"); } The following in C does not work well with squid: while (fgets(url, sizeof(url), stdin)) { // let's ignore the '\n' at the end of url, it only appear in the logs anyway... fprintf(stderr, "filter: url=%s\n", url); printf("OK user=allowed\n"); fprintf(stderr, "filter: end of while...\n"); } With the C version, if I load a test page with 3 images going through squid, I will have the following in the squid_cache.log: filter: url=/path/to/img1.gif filter: end of while... filter: url=/path/to/img2.gif filter: end of while... filter: url=/path/to/img3.gif filter: end of while... and then squid will just wait (for the 3 instances of my program?), blocking everything... When I stop squid, I get 3 messages like: WARNING: Closing client 192.168.16.23 connection due to lifetime timeout 2008/08/19 17:05:18| http://localhost/path/to/img1.gif Any idea what is wrong with my C code...? Thx, JD
Sounds like you are having problems with output buffering. Try adding... fflush(stdout); ...after your fprintf statement. Chris
