X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/putty/blobdiff_plain/df0870fc8ceb5a8fea66a4d0fe00e7db12317e33..63be776775f6859bc185f2fbc00da5d16710fde7:/psftp.c

diff --git a/psftp.c b/psftp.c
index c1d4950b..c7cd8701 100644
--- a/psftp.c
+++ b/psftp.c
@@ -472,6 +472,8 @@ int sftp_general_get(struct sftp_command *cmd, int restart)
 		ret = 0;
 		xfer_set_error(xfer);
 	    }
+
+	    sfree(vbuf);
 	}
     }
 
@@ -1637,14 +1639,13 @@ int from_backend(void *frontend, int is_stderr, const char *data, int datalen)
     unsigned char *p = (unsigned char *) data;
     unsigned len = (unsigned) datalen;
 
-    assert(len > 0);
-
     /*
      * stderr data is just spouted to local stderr and otherwise
      * ignored.
      */
     if (is_stderr) {
-	fwrite(data, 1, len, stderr);
+	if (len > 0)
+	    fwrite(data, 1, len, stderr);
 	return 0;
     }
 
@@ -1654,7 +1655,7 @@ int from_backend(void *frontend, int is_stderr, const char *data, int datalen)
     if (!outptr)
 	return 0;
 
-    if (outlen > 0) {
+    if ((outlen > 0) && (len > 0)) {
 	unsigned used = outlen;
 	if (used > len)
 	    used = len;