X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/8cebca1119664be52f1cbccd0ee052ae0b8c1de0..ab6e546854f67cf582fd67a3d54813fce5aa34ac:/sbr/seq_save.c

diff --git a/sbr/seq_save.c b/sbr/seq_save.c
index 5b06dcdf..f95b4436 100644
--- a/sbr/seq_save.c
+++ b/sbr/seq_save.c
@@ -1,6 +1,4 @@
-
-/*
- * seq_save.c -- 1) synchronize sequences
+/* seq_save.c -- 1) synchronize sequences
  *            -- 2) save public sequences
  *
  * This code is Copyright (c) 2002, by the authors of nmh.  See the
@@ -77,6 +75,8 @@ priv:
 	    context_del (attr);			/* delete sequence from context */
 
 	    if (!fp) {
+		int failed_to_lock = 0;
+
 		/*
 		 * Attempt to open file for public sequences.
 		 * If that fails (probably because folder is
@@ -89,11 +89,19 @@ priv:
 		    free(mp->seqname);
 		    mp->seqname = NULL;
 		    rewind(fp);
-		    ftruncate(fileno(fp), 0);
-		} else if ((fp = lkfopendata (seqfile, "w")) == NULL
+		    if (ftruncate(fileno(fp), 0) < 0) {
+			advise ("sequence file", "ftruncate");
+		    }
+		} else if ((fp = lkfopendata (seqfile, "w", &failed_to_lock))
+			   == NULL
 			&& (m_unlink (seqfile) == -1 ||
-			    (fp = lkfopendata (seqfile, "w")) == NULL)) {
-		    admonish (attr, "unable to write");
+			    (fp = lkfopendata (seqfile, "w", &failed_to_lock))
+			    == NULL)) {
+		    if (failed_to_lock) {
+			admonish (attr, "unable to lock");
+		    } else {
+			admonish (attr, "unable to write");
+		    }
 		    goto priv;
 		}