Fix typo

[lms] / lightmediascanner / src / lib / lightmediascanner_utils.c

diff --git a/lightmediascanner/src/lib/lightmediascanner_utils.c b/lightmediascanner/src/lib/lightmediascanner_utils.c
index 0ee509d..c33dca4 100644 (file)
--- a/lightmediascanner/src/lib/lightmediascanner_utils.c
+++ b/lightmediascanner/src/lib/lightmediascanner_utils.c
@@ -1,5 +1,26 @@
+/**
+ * Copyright (C) 2007 by INdT
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * @author Gustavo Sverzut Barbieri <gustavo.barbieri@openbossa.org>
+ */
+
 #include <lightmediascanner_utils.h>
 #include <ctype.h>
+#include <stdlib.h>
 #include <alloca.h>
 
 /**
@@ -17,12 +38,17 @@ lms_strstrip(char *str, unsigned int *p_len)
 
     len = *p_len;
 
-    if (len < 2) /* just '\0'? */
+    if (len == 0)
+        return;
+
+    if (*str == '\0') {
+        *p_len = 0;
         return;
+    }
 
     p = str + len - 1;
     for (i = len - 1; i >= 0; i--) {
-        if (isspace(*p)) {
+        if (isspace(*p) || *p == '\0') {
             *p = '\0';
             len--;
             p--;
@@ -51,11 +77,54 @@ lms_strstrip(char *str, unsigned int *p_len)
     *p_len = len;
 
     if (str < p)
-        for (; len > 0; len--, str++, p++)
+        for (; len >= 0; len--, str++, p++)
             *str = *p;
 }
 
 /**
+ * If string exists, strips it, in place, free if *p_len = 0
+ *
+ * @param p_str pointer to string to be stripped.
+ * @param p_len string length to analyse, also the place where the final size
+ *        is stored.
+ *
+ * @note this will call free() on *p_str if it becomes empty.
+ */
+void
+lms_strstrip_and_free(char **p_str, unsigned int *p_len)
+{
+    if (!*p_str)
+        return;
+
+    lms_strstrip(*p_str, p_len);
+    if (*p_len == 0) {
+        free(*p_str);
+        *p_str = NULL;
+    }
+}
+
+/**
+ * lms_string_size version of lms_strstrip_and_free().
+ *
+ * @param *p pointer to lms_string_size to be stripped.
+ *
+ * @note this will call free() on lms_string_size->str if it becomes empty.
+ */
+void
+lms_string_size_strip_and_free(struct lms_string_size *p)
+{
+    if (!p->str)
+        return;
+
+    lms_strstrip(p->str, &p->len);
+    if (p->len == 0) {
+        free(p->str);
+        p->str = NULL;
+    }
+}
+
+
+/**
  * Find out which of the given extensions matches the given name.
  *
  * @param name string to analyse.