crypto/openssh/channels.c

1 /* $OpenBSD: channels.c,v 1.331 2014/02/26 20:29:29 djm Exp $ */
76 #include "channels.h"
86  * Pointer to an array containing all allocated channels.  The array is
89 static Channel **channels = NULL;
98  * Maximum file descriptor value used in any of the channels.  This is
194 	c = channels[id];
204  * Private channels, like listening sockets, may not receive messages.
289 		channels = xcalloc(channels_alloc, sizeof(Channel *));
291 			channels[i] = NULL;
295 		if (channels[i] == NULL) {
306 		channels = xrealloc(channels, channels_alloc + 10,
311 			channels[i] = NULL;
314 	c = channels[found] = xcalloc(1, sizeof(Channel));
366 		c = channels[i];
409 		if (channels[i])
439 	channels[c->self] = NULL;
449 		if (channels[i] != NULL)
450 			channel_free(channels[i]);
454  * Closes the sockets/fds of all channels.  This is used to close extra file
463 		if (channels[i] != NULL)
464 			channel_close_fds(channels[i]);
468  * Stop listening to channels.
477 		c = channels[i];
503 		c = channels[i];
532 		c = channels[i];
577 		c = channels[i];
629 		c = channels[i];
796  * channels in the select bitmasks.
799  * 'channel_post*': perform any appropriate operations for channels which
2120 /* gc dead channels */
2159 		c = channels[i];
2195  * Allocate/update select bitmasks and add any bits relevant to channels in
2228  * After select, perform any appropriate operations for channels which have
2246 		c = channels[i];
2251 		 * We are only interested in channels that can have buffered
2382 	/* Ignore any data for non-open channels (might happen on close) */
2964 		Channel *c = channels[i];
2986 		Channel *c = channels[i];
3479 		if (channels[i] == NULL || !channels[i]->client_tty ||
3480 		    channels[i]->type != SSH_CHANNEL_OPEN)
3482 		if (ioctl(channels[i]->rfd, TIOCGWINSZ, &ws) < 0)