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provide locking for version entries

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@15939 ec53bebd-3082-4978-b11e-865c3cabbd6b
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Love Hörnquist Åstrand
2005-08-19 13:07:05 +00:00
parent 8822335041
commit a186871617
1 changed files with 12 additions and 0 deletions
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12
lib/hdb/hdb.c
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@@ -174,9 +174,14 @@ hdb_check_db_format(krb5_context context, HDB *db)
unsigned ver; unsigned ver;
int foo; int foo;
ret = db->hdb_lock(context, db, HDB_RLOCK);
if (ret)
return ret;
tag.data = HDB_DB_FORMAT_ENTRY; tag.data = HDB_DB_FORMAT_ENTRY;
tag.length = strlen(tag.data); tag.length = strlen(tag.data);
ret = (*db->hdb__get)(context, db, tag, &version); ret = (*db->hdb__get)(context, db, tag, &version);
db->hdb_unlock(context, db);
if(ret) if(ret)
return ret; return ret;
foo = sscanf(version.data, "%u", &ver); foo = sscanf(version.data, "%u", &ver);
@@ -200,12 +205,19 @@ hdb_init_db(krb5_context context, HDB *db)
if(ret != HDB_ERR_NOENTRY) if(ret != HDB_ERR_NOENTRY)
return ret; return ret;
ret = db->hdb_lock(context, db, HDB_WLOCK);
if (ret)
return ret;
tag.data = HDB_DB_FORMAT_ENTRY; tag.data = HDB_DB_FORMAT_ENTRY;
tag.length = strlen(tag.data); tag.length = strlen(tag.data);
snprintf(ver, sizeof(ver), "%u", HDB_DB_FORMAT); snprintf(ver, sizeof(ver), "%u", HDB_DB_FORMAT);
version.data = ver; version.data = ver;
version.length = strlen(version.data) + 1; /* zero terminated */ version.length = strlen(version.data) + 1; /* zero terminated */
ret = (*db->hdb__put)(context, db, 0, tag, version); ret = (*db->hdb__put)(context, db, 0, tag, version);
ret = db->hdb_unlock(context, db);
if (ret)
return ret;
return ret; return ret;
} }