X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/d2296ed797ba1e6ced5d07cea2ce3a8aac19d046..ce0c0cdc18a22d51e1c5e40ab0b497ec16b2708b:/nchan.c

diff --git a/nchan.c b/nchan.c
index db38de6a..aee3f37b 100644
--- a/nchan.c
+++ b/nchan.c
@@ -23,7 +23,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: nchan.c,v 1.45 2002/03/25 21:13:51 markus Exp $");
+RCSID("$OpenBSD: nchan.c,v 1.51 2004/07/11 17:48:47 deraadt Exp $");
 
 #include "ssh1.h"
 #include "ssh2.h"
@@ -42,15 +42,15 @@ RCSID("$OpenBSD: nchan.c,v 1.45 2002/03/25 21:13:51 markus Exp $");
  * tear down of channels:
  *
  * 1.3:	strict request-ack-protocol:
- * 	CLOSE	->
- * 		<-  CLOSE_CONFIRM
+ *	CLOSE	->
+ *		<-  CLOSE_CONFIRM
  *
  * 1.5:	uses variations of:
- * 	IEOF	->
- * 		<-  OCLOSE
- * 		<-  IEOF
- * 	OCLOSE	->
- * 	i.e. both sides have to close the channel
+ *	IEOF	->
+ *		<-  OCLOSE
+ *		<-  IEOF
+ *	OCLOSE	->
+ *	i.e. both sides have to close the channel
  *
  * 2.0: the EOF messages are optional
  *
@@ -83,7 +83,7 @@ chan_set_istate(Channel *c, u_int next)
 {
 	if (c->istate > CHAN_INPUT_CLOSED || next > CHAN_INPUT_CLOSED)
 		fatal("chan_set_istate: bad state %d -> %d", c->istate, next);
-	debug("channel %d: input %s -> %s", c->self, istates[c->istate],
+	debug2("channel %d: input %s -> %s", c->self, istates[c->istate],
 	    istates[next]);
 	c->istate = next;
 }
@@ -92,7 +92,7 @@ chan_set_ostate(Channel *c, u_int next)
 {
 	if (c->ostate > CHAN_OUTPUT_CLOSED || next > CHAN_OUTPUT_CLOSED)
 		fatal("chan_set_ostate: bad state %d -> %d", c->ostate, next);
-	debug("channel %d: output %s -> %s", c->self, ostates[c->ostate],
+	debug2("channel %d: output %s -> %s", c->self, ostates[c->ostate],
 	    ostates[next]);
 	c->ostate = next;
 }
@@ -104,7 +104,7 @@ chan_set_ostate(Channel *c, u_int next)
 static void
 chan_rcvd_oclose1(Channel *c)
 {
-	debug("channel %d: rcvd oclose", c->self);
+	debug2("channel %d: rcvd oclose", c->self);
 	switch (c->istate) {
 	case CHAN_INPUT_WAIT_OCLOSE:
 		chan_set_istate(c, CHAN_INPUT_CLOSED);
@@ -128,7 +128,7 @@ chan_rcvd_oclose1(Channel *c)
 void
 chan_read_failed(Channel *c)
 {
-	debug("channel %d: read failed", c->self);
+	debug2("channel %d: read failed", c->self);
 	switch (c->istate) {
 	case CHAN_INPUT_OPEN:
 		chan_shutdown_read(c);
@@ -143,7 +143,7 @@ chan_read_failed(Channel *c)
 void
 chan_ibuf_empty(Channel *c)
 {
-	debug("channel %d: ibuf empty", c->self);
+	debug2("channel %d: ibuf empty", c->self);
 	if (buffer_len(&c->input)) {
 		error("channel %d: chan_ibuf_empty for non empty buffer",
 		    c->self);
@@ -169,7 +169,7 @@ chan_ibuf_empty(Channel *c)
 static void
 chan_rcvd_ieof1(Channel *c)
 {
-	debug("channel %d: rcvd ieof", c->self);
+	debug2("channel %d: rcvd ieof", c->self);
 	switch (c->ostate) {
 	case CHAN_OUTPUT_OPEN:
 		chan_set_ostate(c, CHAN_OUTPUT_WAIT_DRAIN);
@@ -186,7 +186,7 @@ chan_rcvd_ieof1(Channel *c)
 static void
 chan_write_failed1(Channel *c)
 {
-	debug("channel %d: write failed", c->self);
+	debug2("channel %d: write failed", c->self);
 	switch (c->ostate) {
 	case CHAN_OUTPUT_OPEN:
 		chan_shutdown_write(c);
@@ -207,7 +207,7 @@ chan_write_failed1(Channel *c)
 void
 chan_obuf_empty(Channel *c)
 {
-	debug("channel %d: obuf empty", c->self);
+	debug2("channel %d: obuf empty", c->self);
 	if (buffer_len(&c->output)) {
 		error("channel %d: chan_obuf_empty for non empty buffer",
 		    c->self);
@@ -229,7 +229,7 @@ chan_obuf_empty(Channel *c)
 static void
 chan_send_ieof1(Channel *c)
 {
-	debug("channel %d: send ieof", c->self);
+	debug2("channel %d: send ieof", c->self);
 	switch (c->istate) {
 	case CHAN_INPUT_OPEN:
 	case CHAN_INPUT_WAIT_DRAIN:
@@ -246,7 +246,7 @@ chan_send_ieof1(Channel *c)
 static void
 chan_send_oclose1(Channel *c)
 {
-	debug("channel %d: send oclose", c->self);
+	debug2("channel %d: send oclose", c->self);
 	switch (c->ostate) {
 	case CHAN_OUTPUT_OPEN:
 	case CHAN_OUTPUT_WAIT_DRAIN:
@@ -268,7 +268,7 @@ chan_send_oclose1(Channel *c)
 static void
 chan_rcvd_close2(Channel *c)
 {
-	debug("channel %d: rcvd close", c->self);
+	debug2("channel %d: rcvd close", c->self);
 	if (c->flags & CHAN_CLOSE_RCVD)
 		error("channel %d: protocol error: close rcvd twice", c->self);
 	c->flags |= CHAN_CLOSE_RCVD;
@@ -301,7 +301,7 @@ chan_rcvd_close2(Channel *c)
 static void
 chan_rcvd_eof2(Channel *c)
 {
-	debug("channel %d: rcvd eof", c->self);
+	debug2("channel %d: rcvd eof", c->self);
 	c->flags |= CHAN_EOF_RCVD;
 	if (c->ostate == CHAN_OUTPUT_OPEN)
 		chan_set_ostate(c, CHAN_OUTPUT_WAIT_DRAIN);
@@ -309,7 +309,7 @@ chan_rcvd_eof2(Channel *c)
 static void
 chan_write_failed2(Channel *c)
 {
-	debug("channel %d: write failed", c->self);
+	debug2("channel %d: write failed", c->self);
 	switch (c->ostate) {
 	case CHAN_OUTPUT_OPEN:
 	case CHAN_OUTPUT_WAIT_DRAIN:
@@ -325,7 +325,7 @@ chan_write_failed2(Channel *c)
 static void
 chan_send_eof2(Channel *c)
 {
-	debug("channel %d: send eof", c->self);
+	debug2("channel %d: send eof", c->self);
 	switch (c->istate) {
 	case CHAN_INPUT_WAIT_DRAIN:
 		packet_start(SSH2_MSG_CHANNEL_EOF);
@@ -342,7 +342,7 @@ chan_send_eof2(Channel *c)
 static void
 chan_send_close2(Channel *c)
 {
-	debug("channel %d: send close", c->self);
+	debug2("channel %d: send close", c->self);
 	if (c->ostate != CHAN_OUTPUT_CLOSED ||
 	    c->istate != CHAN_INPUT_CLOSED) {
 		error("channel %d: cannot send close for istate/ostate %d/%d",
@@ -367,7 +367,7 @@ chan_rcvd_ieof(Channel *c)
 	else
 		chan_rcvd_ieof1(c);
 	if (c->ostate == CHAN_OUTPUT_WAIT_DRAIN &&
-	    buffer_len(&c->output) == 0 && 
+	    buffer_len(&c->output) == 0 &&
 	    !CHANNEL_EFD_OUTPUT_ACTIVE(c))
 		chan_obuf_empty(c);
 }
@@ -395,33 +395,33 @@ chan_mark_dead(Channel *c)
 }
 
 int
-chan_is_dead(Channel *c, int send)
+chan_is_dead(Channel *c, int do_send)
 {
 	if (c->type == SSH_CHANNEL_ZOMBIE) {
-		debug("channel %d: zombie", c->self);
+		debug2("channel %d: zombie", c->self);
 		return 1;
 	}
 	if (c->istate != CHAN_INPUT_CLOSED || c->ostate != CHAN_OUTPUT_CLOSED)
 		return 0;
 	if (!compat20) {
-		debug("channel %d: is dead", c->self);
+		debug2("channel %d: is dead", c->self);
 		return 1;
 	}
 	if ((datafellows & SSH_BUG_EXTEOF) &&
 	    c->extended_usage == CHAN_EXTENDED_WRITE &&
 	    c->efd != -1 &&
 	    buffer_len(&c->extended) > 0) {
-                debug2("channel %d: active efd: %d len %d",
-                    c->self, c->efd, buffer_len(&c->extended));
+		debug2("channel %d: active efd: %d len %d",
+		    c->self, c->efd, buffer_len(&c->extended));
 		return 0;
 	}
 	if (!(c->flags & CHAN_CLOSE_SENT)) {
-		if (send) {
+		if (do_send) {
 			chan_send_close2(c);
 		} else {
 			/* channel would be dead if we sent a close */
 			if (c->flags & CHAN_CLOSE_RCVD) {
-				debug("channel %d: almost dead",
+				debug2("channel %d: almost dead",
 				    c->self);
 				return 1;
 			}
@@ -429,7 +429,7 @@ chan_is_dead(Channel *c, int send)
 	}
 	if ((c->flags & CHAN_CLOSE_SENT) &&
 	    (c->flags & CHAN_CLOSE_RCVD)) {
-		debug("channel %d: is dead", c->self);
+		debug2("channel %d: is dead", c->self);
 		return 1;
 	}
 	return 0;
@@ -443,15 +443,15 @@ chan_shutdown_write(Channel *c)
 	if (compat20 && c->type == SSH_CHANNEL_LARVAL)
 		return;
 	/* shutdown failure is allowed if write failed already */
-	debug("channel %d: close_write", c->self);
+	debug2("channel %d: close_write", c->self);
 	if (c->sock != -1) {
 		if (shutdown(c->sock, SHUT_WR) < 0)
-			debug("channel %d: chan_shutdown_write: "
+			debug2("channel %d: chan_shutdown_write: "
 			    "shutdown() failed for fd%d: %.100s",
 			    c->self, c->sock, strerror(errno));
 	} else {
 		if (channel_close_fd(&c->wfd) < 0)
-			log("channel %d: chan_shutdown_write: "
+			logit("channel %d: chan_shutdown_write: "
 			    "close() failed for fd%d: %.100s",
 			    c->self, c->wfd, strerror(errno));
 	}
@@ -461,7 +461,7 @@ chan_shutdown_read(Channel *c)
 {
 	if (compat20 && c->type == SSH_CHANNEL_LARVAL)
 		return;
-	debug("channel %d: close_read", c->self);
+	debug2("channel %d: close_read", c->self);
 	if (c->sock != -1) {
 		/*
 		 * shutdown(sock, SHUT_READ) may return ENOTCONN if the
@@ -476,7 +476,7 @@ chan_shutdown_read(Channel *c)
 			    strerror(errno));
 	} else {
 		if (channel_close_fd(&c->rfd) < 0)
-			log("channel %d: chan_shutdown_read: "
+			logit("channel %d: chan_shutdown_read: "
 			    "close() failed for fd%d: %.100s",
 			    c->self, c->rfd, strerror(errno));
 	}