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When mmap fails it returns -1 *NOT NULL*.

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This got regressed somehow.....
Jeremy.
(This used to be commit b77c8b536d)
This commit is contained in:
Jeremy Allison 2001-06-21 19:50:21 +00:00
parent 3a6019b0eb
commit 99c506325f
1 changed files with 7 additions and 1 deletions
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8
source3/tdb/tdb.c
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@ -87,7 +87,13 @@ static void tdb_mmap(TDB_CONTEXT *tdb)
tdb->map_ptr = mmap(NULL, tdb->map_size, tdb->map_ptr = mmap(NULL, tdb->map_size,
PROT_READ|(tdb->read_only? 0:PROT_WRITE), PROT_READ|(tdb->read_only? 0:PROT_WRITE),
MAP_SHARED|MAP_FILE, tdb->fd, 0); MAP_SHARED|MAP_FILE, tdb->fd, 0);
if (!tdb->map_ptr) {
/*
* NB. When mmap fails it returns -1 *NOT* NULL !!!!
*/
if (tdb->map_ptr == (void *)-1) {
tdb->map_ptr = NULL;
TDB_LOG((tdb, 2, "tdb_mmap failed for size %d (%s)\n", TDB_LOG((tdb, 2, "tdb_mmap failed for size %d (%s)\n",
tdb->map_size, strerror(errno))); tdb->map_size, strerror(errno)));
} }