Index: uspace/lib/c/generic/str.c
===================================================================
--- uspace/lib/c/generic/str.c	(revision e978adad9c345c1bf9c58d63e399a1952875dfe5)
+++ uspace/lib/c/generic/str.c	(revision 45bf63c30ca6558e41fac58d97479f70b9b4928d)
@@ -839,4 +839,58 @@
 	
 	return NULL;
+}
+
+/** Removes specified trailing characters from a string.
+ *
+ * @param str String to remove from.
+ * @param ch  Character to remove.
+ */
+void str_rtrim(char *str, wchar_t ch)
+{
+	size_t off = 0;
+	size_t pos = 0;
+	wchar_t c;
+	bool update_last_chunk = true;
+	char *last_chunk = NULL;
+
+	while ((c = str_decode(str, &off, STR_NO_LIMIT))) {
+		if (c != ch) {
+			update_last_chunk = true;
+			last_chunk = NULL;
+		} else if (update_last_chunk) {
+			update_last_chunk = false;
+			last_chunk = (str + pos);
+		}
+		pos = off;
+	}
+
+	if (last_chunk)
+		*last_chunk = '\0';
+}
+
+/** Removes specified leading characters from a string.
+ *
+ * @param str String to remove from.
+ * @param ch  Character to remove.
+ */
+void str_ltrim(char *str, wchar_t ch)
+{
+	wchar_t acc;
+	size_t off = 0;
+	size_t pos = 0;
+	size_t str_sz = str_size(str);
+
+	while ((acc = str_decode(str, &off, STR_NO_LIMIT)) != 0) {
+		if (acc != ch)
+			break;
+		else
+			pos = off;
+	}
+
+	if (pos > 0) {
+		memmove(str, &str[pos], str_sz - pos);
+		pos = str_sz - pos;
+		str[str_sz - pos] = '\0';
+	}
 }
 
Index: uspace/lib/c/include/str.h
===================================================================
--- uspace/lib/c/include/str.h	(revision e978adad9c345c1bf9c58d63e399a1952875dfe5)
+++ uspace/lib/c/include/str.h	(revision 45bf63c30ca6558e41fac58d97479f70b9b4928d)
@@ -91,4 +91,7 @@
 extern char *str_rchr(const char *str, wchar_t ch);
 
+extern void str_rtrim(char *str, wchar_t ch);
+extern void str_ltrim(char *str, wchar_t ch);
+
 extern bool wstr_linsert(wchar_t *str, wchar_t ch, size_t pos, size_t max_pos);
 extern bool wstr_remove(wchar_t *str, size_t pos);