static void
parse_cmdline(int argc, char * const argv[])
{
int ch;
int index = 0;
struct option options[] = {
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'V'},
{"geometry", required_argument, NULL, 'g'},
{"resolution", required_argument, NULL, 'r'},
{"center", required_argument, NULL, 'c'},
{"width", required_argument, NULL, 'w'},
{"height", required_argument, NULL, 'H'},
{"method", required_argument, NULL, 'm'},
{"nthreads", required_argument, NULL, 'n'},
{"output", required_argument, NULL, 'o'},
};
while ((ch = getopt_long(argc, argv,
"hc:H:m:n:o:r:w:g:V", options, &index)) != -1) {
switch (ch) {
case 'h':
do_usage(argv[0], 0);
break;
case 'V':
do_version(argv[0]);
break;
case 'g':
do_geometry(argv[0], optarg);
break;
case 'r':
do_resolution(argv[0], optarg);
break;
case 'c':
do_center(argv[0], optarg);
break;
case 'w':
do_width(argv[0], optarg);
break;
case 'H':
do_height(argv[0], optarg);
break;
case 'm':
do_method(argv[0], optarg);
break;
case 'n':
do_nthreads(argv[0], optarg);
break;
case 'o':
do_output(argv[0], optarg);
break;
default:
do_usage(argv[0], 1);
}
}
if (plot == NULL)
do_method(argv[0], "generic");
if (!output) {
fprintf(stderr, "no output file.\n");
exit(1);
}
}
int main(int argc, char *argv[])
{
fd_set rfds;
int nfds;
#if defined(DMALLOC)
free(malloc(1));
#endif
atexit(cleanup);
if(check_options(argc, argv) != 0)
return -1;
#ifdef HAVE_DAEMON
if((options & OPT_DAEMON) != 0 && daemon(1, 0) != 0)
return -1;
#endif
/*
* read the list of addresses in the address list file.
*/
if(do_infile() != 0)
return -1;
/*
* connect to the scamper process
*/
if(do_scamperconnect() != 0)
return -1;
if(do_outfile() != 0)
return -1;
/* attach */
if(do_attach() != 0)
return -1;
for(;;)
{
if(scamper_fd == -1)
{
break;
}
nfds = 0;
FD_ZERO(&rfds);
/* will always read the scamper process */
FD_SET(scamper_fd, &rfds);
if(nfds < scamper_fd)
nfds = scamper_fd;
/* might read commands from stdin */
if(stdin_fd != -1)
{
FD_SET(stdin_fd, &rfds);
if(nfds < stdin_fd)
nfds = stdin_fd;
}
if(more > 0)
{
do_method();
}
if(select(nfds+1, &rfds, NULL, NULL, NULL) < 0)
{
if(errno == EINTR) continue;
break;
}
if(stdin_fd != -1 && FD_ISSET(stdin_fd, &rfds))
{
if(do_stdinread() != 0)
return -1;
}
if(FD_ISSET(scamper_fd, &rfds))
{
if(do_scamperread() != 0)
return -1;
}
}
return 0;
}
