diff options
Diffstat (limited to 'usr.sbin/mtrace/mtrace.c')
| -rw-r--r-- | usr.sbin/mtrace/mtrace.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/usr.sbin/mtrace/mtrace.c b/usr.sbin/mtrace/mtrace.c index 4135c098cb7..4620dc20394 100644 --- a/usr.sbin/mtrace/mtrace.c +++ b/usr.sbin/mtrace/mtrace.c @@ -52,13 +52,14 @@ #ifndef lint static char rcsid[] = - "@(#) $Id: mtrace.c,v 1.17 2003/06/26 19:47:09 deraadt Exp $"; + "@(#) $Id: mtrace.c,v 1.18 2003/08/19 19:08:38 deraadt Exp $"; #endif #include <netdb.h> #include <sys/time.h> #include <memory.h> #include <string.h> +#include <poll.h> #include <ctype.h> #include <sys/ioctl.h> #include "defs.h" @@ -387,7 +388,6 @@ send_recv(dst, type, code, tries, save) int type, code, tries; struct resp_buf *save; { - fd_set fds; struct timeval tq, tr, tv; struct ip *ip; struct igmp *igmp; @@ -395,6 +395,7 @@ send_recv(dst, type, code, tries, save) int ipdatalen, iphdrlen, igmpdatalen; u_int32_t local, group; int datalen; + struct pollfd pfd[1]; int count, recvlen, dummy = 0; int len; int i; @@ -456,22 +457,19 @@ send_recv(dst, type, code, tries, save) /* * Wait for response, discarding false alarms */ + pfd[0].fd = igmp_socket; + pfd[0].events = POLLIN; while (TRUE) { - FD_ZERO(&fds); - if (igmp_socket >= FD_SETSIZE) - log(LOG_ERR, 0, "descriptor too big"); - FD_SET(igmp_socket, &fds); gettimeofday(&tv, 0); tv.tv_sec = tq.tv_sec + timeout - tv.tv_sec; tv.tv_usec = tq.tv_usec - tv.tv_usec; if (tv.tv_usec < 0) tv.tv_usec += 1000000L, --tv.tv_sec; if (tv.tv_sec < 0) tv.tv_sec = tv.tv_usec = 0; - count = select(igmp_socket + 1, &fds, (fd_set *)0, (fd_set *)0, - &tv); + count = poll(pfd, 1, tv.tv_sec * 1000); if (count < 0) { - if (errno != EINTR) perror("select"); + if (errno != EINTR) perror("poll"); continue; } else if (count == 0) { printf("* "); |