void
openSystemLog (void) {
#if defined(WINDOWS)
if (windowsEventLog == INVALID_HANDLE_VALUE) {
windowsEventLog = RegisterEventSource(NULL, PACKAGE_TARNAME);
}
#elif defined(__MSDOS__)
if (!logFile) {
char *path = makeWritablePath(PACKAGE_TARNAME ".log");
if (path) {
openLogFile(path);
free(path);
}
}
#elif defined(__ANDROID__)
#elif defined(HAVE_SYSLOG_H)
if (!syslogOpened) {
openlog(PACKAGE_TARNAME, LOG_PID, LOG_DAEMON);
syslogOpened = 1;
}
#endif /* open system log */
}
static char *
usbGetFileSystem (const char *type, const FileSystemCandidate *candidates, MountPointTester test, FileSystemVerifier verify) {
if (candidates) {
const FileSystemCandidate *candidate = candidates;
while (candidate->path) {
logMessage(LOG_DEBUG, "verifying file system path: %s: %s", type, candidate->path);
if (candidate->verify(candidate->path)) {
char *path = strdup(candidate->path);
if (path) return path;
logMallocError();
}
candidate += 1;
}
}
if (test) {
char *path = findMountPoint(test);
if (path) return path;
}
if (verify) {
char *directory = makeWritablePath(type);
if (directory) {
if (ensureDirectory(directory)) {
if (verify(directory)) return directory;
{
const char *strings[] = {PACKAGE_NAME, "-", type};
char *name = joinStrings(strings, ARRAY_COUNT(strings));
if (makeMountPoint(directory, name, type)) return directory;
}
}
free(directory);
}
}
return NULL;
}
int
openCharacterDevice (const char *name, int flags, int major, int minor) {
char *path = getDevicePath(name);
int descriptor;
if (!path) {
descriptor = -1;
} else if ((descriptor = open(path, flags)) != -1) {
logMessage(LOG_DEBUG, "device opened: %s: fd=%d", path, descriptor);
} else {
logMessage(LOG_DEBUG, "cannot open device: %s: %s", path, strerror(errno));
if (errno == ENOENT) {
free(path);
if ((path = makeWritablePath(locatePathName(name)))) {
if ((descriptor = open(path, flags)) != -1) {
logMessage(LOG_DEBUG, "device opened: %s: fd=%d", path, descriptor);
} else {
logMessage(LOG_DEBUG, "cannot open device: %s: %s", path, strerror(errno));
if (errno == ENOENT) {
mode_t mode = S_IFCHR | S_IRUSR | S_IWUSR;
if (mknod(path, mode, makedev(major, minor)) == -1) {
logMessage(LOG_DEBUG, "cannot create device: %s: %s", path, strerror(errno));
} else {
logMessage(LOG_DEBUG, "device created: %s mode=%06o major=%d minor=%d",
path, mode, major, minor);
if ((descriptor = open(path, flags)) != -1) {
logMessage(LOG_DEBUG, "device opened: %s: fd=%d", path, descriptor);
} else {
logMessage(LOG_DEBUG, "cannot open device: %s: %s", path, strerror(errno));
}
}
}
}
}
}
}
if (descriptor != -1) {
int ok = 0;
struct stat status;
if (fstat(descriptor, &status) == -1) {
logMessage(LOG_DEBUG, "cannot fstat device: %d [%s]: %s",
descriptor, path, strerror(errno));
} else if (!S_ISCHR(status.st_mode)) {
logMessage(LOG_DEBUG, "not a character device: %s: fd=%d", path, descriptor);
} else {
ok = 1;
}
if (!ok) {
close(descriptor);
logMessage(LOG_DEBUG, "device closed: %s: fd=%d", path, descriptor);
descriptor = -1;
}
}
if (path) free(path);
return descriptor;
}