pg_dump: Have _EndLO report errno after CFH->write_func() failure

Other callers of that function do things this way, but this one didn't
get the memo.

diff --git a/src/bin/pg_dump/pg_backup_directory.c b/src/bin/pg_dump/pg_backup_directory.c
index 2177d5ff425b782136d972eb6796f596f7000028..7f2ac7c7fd1912b71c9d2bc0793af842f8847956 100644 (file)
--- a/src/bin/pg_dump/pg_backup_directory.c
+++ b/src/bin/pg_dump/pg_backup_directory.c
@@ -697,7 +697,13 @@ _EndLO(ArchiveHandle *AH, TocEntry *te, Oid oid)
    /* register the LO in blobs.toc */
    len = snprintf(buf, sizeof(buf), "%u blob_%u.dat\n", oid, oid);
    if (!CFH->write_func(buf, len, CFH))
-       pg_fatal("could not write to LOs TOC file");
+   {
+       /* if write didn't set errno, assume problem is no disk space */
+       if (errno == 0)
+           errno = ENOSPC;
+       pg_fatal("could not write to LOs TOC file: %s",
+                CFH->get_error_func(CFH));
+   }
 }
 
 /*