RETURN();
}
-static struct sp_port **list_append(struct sp_port **list, const char *portname)
+struct sp_port **list_append(struct sp_port **list, const char *portname)
{
void *tmp;
unsigned int count;
enum sp_return sp_list_ports(struct sp_port ***list_ptr)
{
struct sp_port **list;
- int ret = SP_ERR_SUPP;
+ int ret;
TRACE("%p", list_ptr);
list[0] = NULL;
-#ifdef _WIN32
- HKEY key;
- TCHAR *value, *data;
- DWORD max_value_len, max_data_size, max_data_len;
- DWORD value_len, data_size, data_len;
- DWORD type, index = 0;
- char *name;
- int name_len;
-
- ret = SP_OK;
-
- DEBUG("Opening registry key");
- if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("HARDWARE\\DEVICEMAP\\SERIALCOMM"),
- 0, KEY_QUERY_VALUE, &key) != ERROR_SUCCESS) {
- SET_FAIL(ret, "RegOpenKeyEx() failed");
- goto out_done;
- }
- DEBUG("Querying registry key value and data sizes");
- if (RegQueryInfoKey(key, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- &max_value_len, &max_data_size, NULL, NULL) != ERROR_SUCCESS) {
- SET_FAIL(ret, "RegQueryInfoKey() failed");
- goto out_close;
- }
- max_data_len = max_data_size / sizeof(TCHAR);
- if (!(value = malloc((max_value_len + 1) * sizeof(TCHAR)))) {
- SET_ERROR(ret, SP_ERR_MEM, "registry value malloc failed");
- goto out_close;
- }
- if (!(data = malloc((max_data_len + 1) * sizeof(TCHAR)))) {
- SET_ERROR(ret, SP_ERR_MEM, "registry data malloc failed");
- goto out_free_value;
- }
- DEBUG("Iterating over values");
- while (
- value_len = max_value_len + 1,
- data_size = max_data_size,
- RegEnumValue(key, index, value, &value_len,
- NULL, &type, (LPBYTE)data, &data_size) == ERROR_SUCCESS)
- {
- data_len = data_size / sizeof(TCHAR);
- data[data_len] = '\0';
-#ifdef UNICODE
- name_len = WideCharToMultiByte(CP_ACP, 0, data, -1, NULL, 0, NULL, NULL);
-#else
- name_len = data_len + 1;
-#endif
- if (!(name = malloc(name_len))) {
- SET_ERROR(ret, SP_ERR_MEM, "registry port name malloc failed");
- goto out;
- }
-#ifdef UNICODE
- WideCharToMultiByte(CP_ACP, 0, data, -1, name, name_len, NULL, NULL);
-#else
- strcpy(name, data);
-#endif
- if (type == REG_SZ) {
- DEBUG("Found port %s", name);
- if (!(list = list_append(list, name))) {
- SET_ERROR(ret, SP_ERR_MEM, "list append failed");
- goto out;
- }
- }
- index++;
- }
-out:
- free(data);
-out_free_value:
- free(value);
-out_close:
- RegCloseKey(key);
-out_done:
-#endif
-#ifdef __APPLE__
- CFMutableDictionaryRef classes;
- io_iterator_t iter;
- char path[PATH_MAX];
- io_object_t port;
- CFTypeRef cf_path;
- Boolean result;
-
- ret = SP_OK;
-
- DEBUG("Creating matching dictionary");
- if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) {
- SET_FAIL(ret, "IOServiceMatching() failed");
- goto out_done;
- }
-
- DEBUG("Getting matching services");
- if (IOServiceGetMatchingServices(kIOMasterPortDefault, classes,
- &iter) != KERN_SUCCESS) {
- SET_FAIL(ret, "IOServiceGetMatchingServices() failed");
- goto out_done;
- }
-
- DEBUG("Iterating over results");
- while ((port = IOIteratorNext(iter))) {
- cf_path = IORegistryEntryCreateCFProperty(port,
- CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0);
- if (cf_path) {
- result = CFStringGetCString(cf_path, path, sizeof(path),
- kCFStringEncodingASCII);
- CFRelease(cf_path);
- if (result) {
- DEBUG("Found port %s", path);
- if (!(list = list_append(list, path))) {
- SET_ERROR(ret, SP_ERR_MEM, "list append failed");
- IOObjectRelease(port);
- goto out;
- }
- }
- }
- IOObjectRelease(port);
- }
-out:
- IOObjectRelease(iter);
-out_done:
-#endif
-#ifdef __linux__
- char name[PATH_MAX], target[PATH_MAX];
- struct dirent entry, *result;
- struct serial_struct serial_info;
- int len, fd, ioctl_result;
- DIR *dir;
-
- ret = SP_OK;
-
- DEBUG("Enumerating tty devices");
- if (!(dir = opendir("/sys/class/tty")))
- RETURN_FAIL("could not open /sys/class/tty");
-
- DEBUG("Iterating over results");
- while (!readdir_r(dir, &entry, &result) && result) {
- len = readlinkat(dirfd(dir), entry.d_name, target, sizeof(target));
- if (len <= 0 || len >= (int) sizeof(target)-1)
- continue;
- target[len] = 0;
- if (strstr(target, "virtual"))
- continue;
- snprintf(name, sizeof(name), "/dev/%s", entry.d_name);
- DEBUG("Found device %s", name);
- if (strstr(target, "serial8250")) {
- /* The serial8250 driver has a hardcoded number of ports.
- * The only way to tell which actually exist on a given system
- * is to try to open them and make an ioctl call. */
- DEBUG("serial8250 device, attempting to open");
- if ((fd = open(name, O_RDWR | O_NONBLOCK | O_NOCTTY)) < 0) {
- DEBUG("open failed, skipping");
- continue;
- }
- ioctl_result = ioctl(fd, TIOCGSERIAL, &serial_info);
- close(fd);
- if (ioctl_result != 0) {
- DEBUG("ioctl failed, skipping");
- continue;
- }
- if (serial_info.type == PORT_UNKNOWN) {
- DEBUG("port type is unknown, skipping");
- continue;
- }
- }
- DEBUG("Found port %s", name);
- list = list_append(list, name);
- if (!list) {
- SET_ERROR(ret, SP_ERR_MEM, "list append failed");
- break;
- }
- }
- closedir(dir);
-#endif
+ ret = list_ports(&list);
switch (ret) {
case SP_OK:
projects / libserialport.git / blobdiff