static INLINE void
PollGtkLock(void)
{
MXUser_AcquireExclLock(pollState->lock);
}
char *
File_GetSafeTmpDir(Bool useConf) // IN:
{
char *tmpDir;
#if defined(__FreeBSD__) || defined(sun)
tmpDir = FileGetTmpDir(useConf);
#else
static Atomic_Ptr lckStorage;
static char *safeDir;
char *baseTmpDir = NULL;
char *userName = NULL;
uid_t userId;
MXUserExclLock *lck;
userId = geteuid();
/* Get and take lock for our safe dir. */
lck = MXUser_CreateSingletonExclLock(&lckStorage, "getSafeTmpDirLock",
RANK_getSafeTmpDirLock);
VERIFY(lck != NULL);
MXUser_AcquireExclLock(lck);
/*
* Check if we've created a temporary dir already and if it is still usable.
*/
tmpDir = NULL;
if (safeDir && FileAcceptableSafeTmpDir(safeDir, userId)) {
tmpDir = Util_SafeStrdup(safeDir);
goto exit;
}
/* We don't have a useable temporary dir, create one. */
baseTmpDir = FileGetTmpDir(useConf);
if (!baseTmpDir) {
Warning("%s: FileGetTmpDir failed.\n", __FUNCTION__);
goto exit;
}
userName = FileGetUserName(userId);
if (!userName) {
Warning("%s: FileGetUserName failed, using numeric ID "
"as username instead.\n", __FUNCTION__);
/* Fallback on just using the userId as the username. */
userName = Str_Asprintf(NULL, "uid-%d", userId);
if (!userName) {
Warning("%s: Str_Asprintf error.\n", __FUNCTION__);
goto exit;
}
}
tmpDir = Str_Asprintf(NULL, "%s%s%s-%s", baseTmpDir, DIRSEPS,
PRODUCT_GENERIC_NAME_LOWER, userName);
if (!tmpDir) {
Warning("%s: Out of memory error.\n", __FUNCTION__);
goto exit;
}
if (!FileAcceptableSafeTmpDir(tmpDir, userId)) {
/*
* We didn't get our first choice for the safe temp directory.
* Search through the unsafe tmp directory to see if there is
* an acceptable one to use.
*/
free(tmpDir);
tmpDir = FileFindExistingSafeTmpDir(userId, userName, baseTmpDir);
if (!tmpDir) {
/*
* We didn't find any usable directories, so try to create one now.
*/
tmpDir = FileCreateSafeTmpDir(userId, userName, baseTmpDir);
}
}
if (tmpDir) {
/*
* We have successfully created a temporary directory, remember it for
* future calls.
*/
free(safeDir);
safeDir = Util_SafeStrdup(tmpDir);
}
exit:
MXUser_ReleaseExclLock(lck);
free(baseTmpDir);
free(userName);
#endif
return tmpDir;
}