static int adm_builtin(struct udev *udev, int argc, char *argv[])
{
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{}
};
char *command = NULL;
char *syspath = NULL;
char filename[UTIL_PATH_SIZE];
struct udev_device *dev = NULL;
enum udev_builtin_cmd cmd;
int rc = EXIT_SUCCESS;
dbg(udev, "version %s\n", VERSION);
for (;;) {
int option;
option = getopt_long(argc, argv, "h", options, NULL);
if (option == -1)
break;
switch (option) {
case 'h':
help(udev);
goto out;
}
}
command = argv[optind++];
if (command == NULL) {
fprintf(stderr, "command missing\n");
help(udev);
rc = 2;
goto out;
}
syspath = argv[optind++];
if (syspath == NULL) {
fprintf(stderr, "syspath missing\n\n");
rc = 3;
goto out;
}
/* add /sys if needed */
if (strncmp(syspath, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0)
util_strscpyl(filename, sizeof(filename), udev_get_sys_path(udev), syspath, NULL);
else
util_strscpy(filename, sizeof(filename), syspath);
util_remove_trailing_chars(filename, '/');
dev = udev_device_new_from_syspath(udev, filename);
if (dev == NULL) {
fprintf(stderr, "unable to open device '%s'\n\n", filename);
rc = 4;
goto out;
}
cmd = udev_builtin_lookup(command);
if (cmd >= UDEV_BUILTIN_MAX) {
fprintf(stderr, "unknown command '%s'\n", command);
help(udev);
rc = 5;
goto out;
}
if (udev_builtin_run(dev, cmd, true) < 0) {
fprintf(stderr, "error executing '%s'\n\n", command);
rc = 6;
}
out:
udev_device_unref(dev);
return rc;
}
static int adm_builtin(struct udev *udev, int argc, char *argv[]) {
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{}
};
char *command = NULL;
char *syspath = NULL;
char filename[UTIL_PATH_SIZE];
struct udev_device *dev = NULL;
enum udev_builtin_cmd cmd;
int rc = EXIT_SUCCESS, c;
while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
switch (c) {
case 'h':
help(udev);
goto out;
}
command = argv[optind++];
if (command == NULL) {
fprintf(stderr, "command missing\n");
help(udev);
rc = 2;
goto out;
}
syspath = argv[optind++];
if (syspath == NULL) {
fprintf(stderr, "syspath missing\n");
rc = 3;
goto out;
}
udev_builtin_init(udev);
cmd = udev_builtin_lookup(command);
if (cmd >= UDEV_BUILTIN_MAX) {
fprintf(stderr, "unknown command '%s'\n", command);
help(udev);
rc = 5;
goto out;
}
/* add /sys if needed */
if (!startswith(syspath, "/sys"))
strscpyl(filename, sizeof(filename), "/sys", syspath, NULL);
else
strscpy(filename, sizeof(filename), syspath);
util_remove_trailing_chars(filename, '/');
dev = udev_device_new_from_syspath(udev, filename);
if (dev == NULL) {
fprintf(stderr, "unable to open device '%s'\n\n", filename);
rc = 4;
goto out;
}
rc = udev_builtin_run(dev, cmd, command, true);
if (rc < 0) {
fprintf(stderr, "error executing '%s', exit code %i\n\n", command, rc);
rc = 6;
}
out:
udev_device_unref(dev);
udev_builtin_exit(udev);
return rc;
}
/**
* udev_new:
*
* Create udev library context.
*
* The initial refcount is 1, and needs to be decremented to
* release the resources of the udev library context.
*
* Returns: a new udev library context
**/
struct udev *udev_new(void)
{
struct udev *udev;
const char *env;
char *config_file;
FILE *f;
udev = calloc(1, sizeof(struct udev));
if (udev == NULL)
return NULL;
udev->refcount = 1;
udev->log_fn = log_stderr;
udev->log_priority = LOG_ERR;
udev_list_init(&udev->properties_list);
udev->run = 1;
udev->dev_path = strdup(UDEV_PREFIX "/dev");
udev->sys_path = strdup("/sys");
config_file = strdup(SYSCONFDIR "/udev/udev.conf");
if (udev->dev_path == NULL ||
udev->sys_path == NULL ||
config_file == NULL)
goto err;
/* settings by environment and config file */
env = getenv("SYSFS_PATH");
if (env != NULL) {
free(udev->sys_path);
udev->sys_path = strdup(env);
util_remove_trailing_chars(udev->sys_path, '/');
udev_add_property(udev, "SYSFS_PATH", udev->sys_path);
}
env = getenv("UDEV_RUN");
if (env != NULL && strcmp(env, "0") == 0)
udev->run = 0;
env = getenv("UDEV_CONFIG_FILE");
if (env != NULL) {
free(config_file);
config_file = strdup(env);
util_remove_trailing_chars(config_file, '/');
}
if (config_file == NULL)
goto err;
f = fopen(config_file, "r");
if (f != NULL) {
char line[UTIL_LINE_SIZE];
int line_nr = 0;
while (fgets(line, sizeof(line), f)) {
size_t len;
char *key;
char *val;
line_nr++;
/* find key */
key = line;
while (isspace(key[0]))
key++;
/* comment or empty line */
if (key[0] == '#' || key[0] == '\0')
continue;
/* split key/value */
val = strchr(key, '=');
if (val == NULL) {
err(udev, "missing <key>=<value> in '%s'[%i], skip line\n", config_file, line_nr);
continue;
}
val[0] = '\0';
val++;
/* find value */
while (isspace(val[0]))
val++;
/* terminate key */
len = strlen(key);
if (len == 0)
continue;
while (isspace(key[len-1]))
len--;
key[len] = '\0';
/* terminate value */
len = strlen(val);
if (len == 0)
continue;
while (isspace(val[len-1]))
len--;
val[len] = '\0';
if (len == 0)
continue;
/* unquote */
if (val[0] == '"' || val[0] == '\'') {
if (val[len-1] != val[0]) {
err(udev, "inconsistent quoting in '%s'[%i], skip line\n", config_file, line_nr);
continue;
}
val[len-1] = '\0';
val++;
}
if (strcasecmp(key, "udev_log") == 0) {
udev_set_log_priority(udev, util_log_priority(val));
continue;
}
if (strcasecmp(key, "udev_root") == 0) {
free(udev->dev_path);
udev->dev_path = strdup(val);
util_remove_trailing_chars(udev->dev_path, '/');
continue;
}
if (strcasecmp(key, "udev_rules") == 0) {
free(udev->rules_path);
udev->rules_path = strdup(val);
util_remove_trailing_chars(udev->rules_path, '/');
continue;
}
}
fclose(f);
}
env = getenv("UDEV_ROOT");
if (env != NULL) {
free(udev->dev_path);
udev->dev_path = strdup(env);
util_remove_trailing_chars(udev->dev_path, '/');
udev_add_property(udev, "UDEV_ROOT", udev->dev_path);
}
env = getenv("UDEV_LOG");
if (env != NULL)
udev_set_log_priority(udev, util_log_priority(env));
if (udev->dev_path == NULL || udev->sys_path == NULL)
goto err;
dbg(udev, "context %p created\n", udev);
dbg(udev, "log_priority=%d\n", udev->log_priority);
dbg(udev, "config_file='%s'\n", config_file);
dbg(udev, "dev_path='%s'\n", udev->dev_path);
dbg(udev, "sys_path='%s'\n", udev->sys_path);
if (udev->rules_path != NULL)
dbg(udev, "rules_path='%s'\n", udev->rules_path);
free(config_file);
return udev;
err:
free(config_file);
err(udev, "context creation failed\n");
udev_unref(udev);
return NULL;
}