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r23980: Fix one more use of pwrite in expand_file.

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Michael
This commit is contained in:
Michael Adam
2007-07-20 16:31:32 +00:00
committed by Gerald (Jerry) Carter
parent eb524df0a5
commit b97acdc67b
1 changed files with 10 additions and 1 deletions
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11
source/lib/tdb/common/io.c
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@@ -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) { if (ftruncate(tdb->fd, size+addition) == -1) {
char b = 0; 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", TDB_LOG((tdb, TDB_DEBUG_FATAL, "expand_file to %d failed (%s)\n",
size+addition, strerror(errno))); size+addition, strerror(errno)));
return -1; return -1;