51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#include "logger.h"
#include "system.h"
-
-#include "../src/logger.h"
#include "utils.h"
+#include "xalloc.h"
static const char hexadecimals[] = "0123456789ABCDEF";
static const char base64_original[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
memcpy(&value, bitfield, size);
return value;
}
+
+bool check_id(const char *id) {
+ if(!id || !*id)
+ return false;
+
+ for(; *id; id++)
+ if(!isalnum(*id) && *id != '_')
+ return false;
+
+ return true;
+}
+
+/* Windows doesn't define HOST_NAME_MAX. */
+#ifndef HOST_NAME_MAX
+#define HOST_NAME_MAX 255
+#endif
+
+char *replace_name(const char *name) {
+ char *ret_name;
+
+ if (name[0] == '$') {
+ char *envname = getenv(name + 1);
+ char hostname[HOST_NAME_MAX+1];
+ if (!envname) {
+ if (strcmp(name + 1, "HOST")) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Invalid Name: environment variable %s does not exist\n", name + 1);
+ return NULL;
+ }
+ if (gethostname(hostname, sizeof hostname) || !*hostname) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Could not get hostname: %s\n", sockstrerror(sockerrno));
+ return NULL;
+ }
+ hostname[HOST_NAME_MAX] = 0;
+ envname = hostname;
+ }
+ ret_name = xstrdup(envname);
+ for (char *c = ret_name; *c; c++)
+ if (!isalnum(*c))
+ *c = '_';
+ } else {
+ ret_name = xstrdup(name);
+ }
+
+ if (!check_id(ret_name)) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Invalid name for myself!");
+ free(ret_name);
+ return NULL;
+ }
+
+ return ret_name;
+}