more meaningful BAM truncation message

diff --git a/bam.c b/bam.c
index 521c1dda7897aa2b4489b103e1ee1a84129d6c63..96aace21c7ab7c261380ee2136e283022e9c834d 100644 (file)
--- a/bam.c
+++ b/bam.c
@@ -79,7 +79,7 @@ bam_header_t *bam_header_read(bamFile fp)
                // with ESPIPE.  Suppress the error message in this case.
                if (errno != ESPIPE) perror("[bam_header_read] bgzf_check_EOF");
        }
-       else if (i == 0) fprintf(stderr, "[bam_header_read] EOF marker is absent.\n");
+       else if (i == 0) fprintf(stderr, "[bam_header_read] EOF marker is absent. The input is probably truncated.\n");
        // read "BAM1"
        magic_len = bam_read(fp, buf, 4);
        if (magic_len != 4 || strncmp(buf, "BAM\001", 4) != 0) {