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poll: Check if maxfd has been set.

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This commit is contained in:
Andreas Schneider
2010-06-20 21:16:29 +02:00
parent a85a4cc192
commit 541b38b772
1 changed files with 3 additions and 2 deletions
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5
libssh/poll.c
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@@ -110,7 +110,7 @@ static int bsd_poll(ssh_pollfd_t *fds, nfds_t nfds, int timeout) {
FD_ZERO (&exceptfds); FD_ZERO (&exceptfds);
/* compute fd_sets and find largest descriptor */ /* compute fd_sets and find largest descriptor */
for (max_fd = 0, i = 0; i < nfds; i++) { for (rc = -1; max_fd = 0, i = 0; i < nfds; i++) {
if (fds[i].fd == SSH_INVALID_SOCKET) { if (fds[i].fd == SSH_INVALID_SOCKET) {
continue; continue;
} }
@@ -129,10 +129,11 @@ static int bsd_poll(ssh_pollfd_t *fds, nfds_t nfds, int timeout) {
POLLRDNORM | POLLRDBAND | POLLRDNORM | POLLRDBAND |
POLLWRNORM | POLLWRBAND))) { POLLWRNORM | POLLWRBAND))) {
max_fd = fds[i].fd; max_fd = fds[i].fd;
rc = 0;
} }
} }
if (max_fd == SSH_INVALID_SOCKET) { if (max_fd == SSH_INVALID_SOCKET || rc = -1) {
errno = EINVAL; errno = EINVAL;
return -1; return -1;
} }