int
ensureDirectory (const char *path) {
if (testDirectoryPath(path)) return 1;
if (errno == EEXIST) {
logMessage(LOG_ERR, "not a directory: %s", path);
} else if (errno != ENOENT) {
logMessage(LOG_ERR, "cannot access directory: %s: %s", path, strerror(errno));
} else {
{
char *directory = getPathDirectory(path);
if (!directory) return 0;
{
int exists = ensureDirectory(directory);
free(directory);
if (!exists) return 0;
}
}
if (createDirectory(path)) {
logMessage(LOG_NOTICE, "directory created: %s", path);
return 1;
}
}
return 0;
}
const char *
getDeviceDirectory (void) {
static const char *deviceDirectory = NULL;
if (!deviceDirectory) {
const char *directory = DEVICE_DIRECTORY;
const size_t directoryLength = strlen(directory);
static const char *const variables[] = {"DTDEVROOT", "UTDEVROOT", NULL};
const char *const *variable = variables;
while (*variable) {
const char *root = getenv(*variable);
if (root && *root) {
const size_t rootLength = strlen(root);
char path[rootLength + directoryLength + 1];
snprintf(path, sizeof(path), "%s%s", root, directory);
if (testDirectoryPath(path)) {
if ((deviceDirectory = strdup(path))) goto found;
logMallocError();
} else if (errno != ENOENT) {
logMessage(LOG_ERR, "device directory error: %s (%s): %s",
path, *variable, strerror(errno));
}
}
variable += 1;
}
deviceDirectory = directory;
found:
logMessage(LOG_DEBUG, "device directory: %s", deviceDirectory);
}
return deviceDirectory;
}
