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authorMichael Adam <obnox@samba.org>2007-07-20 16:31:32 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 12:28:52 -0500
commit84f352caa58a5a903087ff93e56113a07a7840aa (patch)
tree3dee6f3405ba4939f48ab9de437c8e35aa62169a /source3/lib/tdb
parent207a213c061b2c3a4dab42e9af1c19edaa39a2a0 (diff)
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r23980: Fix one more use of pwrite in expand_file.
Michael (This used to be commit de0ef9134650e3e7cc5b5cfec9e8dd8510bd6677)
Diffstat (limited to 'source3/lib/tdb')
-rw-r--r--source3/lib/tdb/common/io.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/source3/lib/tdb/common/io.c b/source3/lib/tdb/common/io.c
index a24b5e24a2..df924a9dcd 100644
--- a/source3/lib/tdb/common/io.c
+++ b/source3/lib/tdb/common/io.c
@@ -220,7 +220,16 @@ static int tdb_expand_file(struct tdb_context *tdb, tdb_off_t size, tdb_off_t ad
if (ftruncate(tdb->fd, size+addition) == -1) {
char b = 0;
- if (pwrite(tdb->fd, &b, 1, (size+addition) - 1) != 1) {
+ ssize_t written = pwrite(tdb->fd, &b, 1, (size+addition) - 1);
+ if (written == 0) {
+ /* try once more, potentially revealing errno */
+ written = pwrite(tdb->fd, &b, 1, (size+addition) - 1);
+ }
+ if (written == 0) {
+ /* again - give up, guessing errno */
+ errno = ENOSPC;
+ }
+ if (written != 1) {
TDB_LOG((tdb, TDB_DEBUG_FATAL, "expand_file to %d failed (%s)\n",
size+addition, strerror(errno)));
return -1;