eina: don't segv in eina_unicode_utf8_get_next when index is NULL.

Patch by Patryk Kaczmarek <patryk.k@samsung.com>

git-svn-id: http://svn.enlightenment.org/svn/e/trunk/eina@78215 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

diff --git a/src/include/eina_unicode.h b/src/include/eina_unicode.h
index 1b3ed15..bd4ac1d 100644 (file)
--- a/src/include/eina_unicode.h
+++ b/src/include/eina_unicode.h
@@ -143,7 +143,7 @@ EAPI Eina_Unicode eina_unicode_utf8_get_next(const char *buf, int *iindex) EINA_
  *
  * @param buf the string
  * @param iindex the index to look at and return by.
- * @return the codepoint found.
+ * @return the codepoint found, 0 if @p buf or @p iindex are NULL
  * @since 1.1.0
  */
 EAPI Eina_Unicode eina_unicode_utf8_get_prev(const char *buf, int *iindex) EINA_ARG_NONNULL(1, 2);

diff --git a/src/lib/eina_unicode.c b/src/lib/eina_unicode.c
index 7505906..a1993de 100644 (file)
--- a/src/lib/eina_unicode.c
+++ b/src/lib/eina_unicode.c
@@ -193,13 +193,15 @@ eina_unicode_escape(const Eina_Unicode *str)
 EAPI Eina_Unicode
 eina_unicode_utf8_get_next(const char *buf, int *iindex)
 {
-   int ind = *iindex;
+   int ind;
    Eina_Unicode r;
    unsigned char d;
 
    EINA_SAFETY_ON_NULL_RETURN_VAL(buf, 0);
    EINA_SAFETY_ON_NULL_RETURN_VAL(iindex, 0);
 
+   ind = *iindex;
+
    /* if this char is the null terminator, exit */
    if ((d = buf[ind++]) == 0) return 0;