19990512 Uses Select. Charles P. Wright
19990513 Fixes stdin stupidity and uses buffers. Charles P. Wright
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include <stdio.h>
int nc_main(int argc, char **argv)
{
int do_listen = 0, lport = 0, delay = 0, wsecs = 0, tmpfd, opt, sfd, x;
- char buf[BUFSIZ];
+
+#define buf bb_common_bufsiz1
+
#ifdef CONFIG_NC_GAPING_SECURITY_HOLE
char *pr00gie = NULL;
#endif
}
}
-#ifdef CONFIG_NC_GAPING_SECURITY_HOLE
- if (pr00gie) {
- /* won't need stdin */
- close(STDIN_FILENO);
- }
-#endif /* CONFIG_NC_GAPING_SECURITY_HOLE */
-
if ((do_listen && optind != argc) || (!do_listen && optind + 2 != argc))
bb_show_usage();
- if ((sfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
- bb_perror_msg_and_die("socket");
+ sfd = bb_xsocket(AF_INET, SOCK_STREAM, 0);
x = 1;
if (setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, &x, sizeof (x)) == -1)
bb_perror_msg_and_die("reuseaddr");
memset(&address.sin_addr, 0, sizeof(address.sin_addr));
address.sin_port = lport;
- if (bind(sfd, (struct sockaddr *) &address, sizeof(address)) < 0)
- bb_perror_msg_and_die("bind");
+ bb_xbind(sfd, (struct sockaddr *) &address, sizeof(address));
}
if (do_listen) {
socklen_t addrlen = sizeof(address);
- if (listen(sfd, 1) < 0)
- bb_perror_msg_and_die("listen");
-
+ bb_xlisten(sfd, 1);
if ((tmpfd = accept(sfd, (struct sockaddr *) &address, &addrlen)) < 0)
bb_perror_msg_and_die("accept");
exit(0);
ofd = STDOUT_FILENO;
} else {
- if (nread == 0)
- shutdown(sfd, 1);
+ if (nread <= 0) {
+ shutdown(sfd, 1 /* send */ );
+ close(STDIN_FILENO);
+ FD_CLR(STDIN_FILENO, &readfds);
+ }
ofd = sfd;
}