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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 15:01:15 -0500
commit0673a182771878892b584efc5316e4029a8fee47 (patch)
treec592f187865639c7e053473b5fb631e04abf1e84 /source4/lib/tdb/common/io.c
parent7002ed291a5831e0f5f89b038ab63dc31ea3287f (diff)
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r23980: Fix one more use of pwrite in expand_file.
Michael (This used to be commit b97acdc67b1a55529e69bb7b2b78a317a34b1eba)
Diffstat (limited to 'source4/lib/tdb/common/io.c')
-rw-r--r--source4/lib/tdb/common/io.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/source4/lib/tdb/common/io.c b/source4/lib/tdb/common/io.c
index a24b5e24a2..df924a9dcd 100644
--- a/source4/lib/tdb/common/io.c
+++ b/source4/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;