X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/09915dc185f064145d751b09a4ea3d7d72a7fd3e..32560f077f93eb11a8d199ada25e7f7dfec79af4:/msg.c

diff --git a/msg.c b/msg.c
index 7275c847..3e4c2882 100644
--- a/msg.c
+++ b/msg.c
@@ -22,7 +22,7 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #include "includes.h"
-RCSID("$OpenBSD: msg.c,v 1.3 2002/06/24 15:49:22 itojun Exp $");
+RCSID("$OpenBSD: msg.c,v 1.8 2005/05/24 17:32:43 avsm Exp $");
 
 #include "buffer.h"
 #include "getput.h"
@@ -30,44 +30,50 @@ RCSID("$OpenBSD: msg.c,v 1.3 2002/06/24 15:49:22 itojun Exp $");
 #include "atomicio.h"
 #include "msg.h"
 
-void
-msg_send(int fd, u_char type, Buffer *m)
+int
+ssh_msg_send(int fd, u_char type, Buffer *m)
 {
 	u_char buf[5];
 	u_int mlen = buffer_len(m);
 
-	debug3("msg_send: type %u", (unsigned int)type & 0xff);
+	debug3("ssh_msg_send: type %u", (unsigned int)type & 0xff);
 
 	PUT_32BIT(buf, mlen + 1);
 	buf[4] = type;		/* 1st byte of payload is mesg-type */
-	if (atomicio(write, fd, buf, sizeof(buf)) != sizeof(buf))
-		fatal("msg_send: write");
-	if (atomicio(write, fd, buffer_ptr(m), mlen) != mlen)
-		fatal("msg_send: write");
+	if (atomicio(vwrite, fd, buf, sizeof(buf)) != sizeof(buf)) {
+		error("ssh_msg_send: write");
+		return (-1);
+	}
+	if (atomicio(vwrite, fd, buffer_ptr(m), mlen) != mlen) {
+		error("ssh_msg_send: write");
+		return (-1);
+	}
+	return (0);
 }
 
 int
-msg_recv(int fd, Buffer *m)
+ssh_msg_recv(int fd, Buffer *m)
 {
 	u_char buf[4];
-	ssize_t res;
 	u_int msg_len;
 
-	debug3("msg_recv entering");
+	debug3("ssh_msg_recv entering");
 
-	res = atomicio(read, fd, buf, sizeof(buf));
-	if (res != sizeof(buf)) {
-		if (res == 0)
-			return -1;
-		fatal("msg_recv: read: header %ld", (long)res);
+	if (atomicio(read, fd, buf, sizeof(buf)) != sizeof(buf)) {
+		if (errno != EPIPE)
+			error("ssh_msg_recv: read: header");
+		return (-1);
 	}
 	msg_len = GET_32BIT(buf);
-	if (msg_len > 256 * 1024)
-		fatal("msg_recv: read: bad msg_len %d", msg_len);
+	if (msg_len > 256 * 1024) {
+		error("ssh_msg_recv: read: bad msg_len %u", msg_len);
+		return (-1);
+	}
 	buffer_clear(m);
 	buffer_append_space(m, msg_len);
-	res = atomicio(read, fd, buffer_ptr(m), msg_len);
-	if (res != msg_len)
-		fatal("msg_recv: read: %ld != msg_len", (long)res);
-	return 0;
+	if (atomicio(read, fd, buffer_ptr(m), msg_len) != msg_len) {
+		error("ssh_msg_recv: read: %s", strerror(errno));
+		return (-1);
+	}
+	return (0);
 }