CallerID: Fix parsing of malformed callerid

This allows the callerid parsing function to handle malformed input
strings and strings containing escaped and unescaped double quotes.
This also adds a unittest to cover many of the cases where the parsing
algorithm previously failed.

Review: https://reviewboard.asterisk.org/r/3923/
Review: https://reviewboard.asterisk.org/r/3933/
........

Merged revisions 422112 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 422113 from http://svn.asterisk.org/svn/asterisk/branches/11
........

Merged revisions 422114 from http://svn.asterisk.org/svn/asterisk/branches/12
........

Merged revisions 422154 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@422158 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 9 insertions, 0 deletions

diff --git a/include/asterisk/utils.h b/include/asterisk/utils.h
index 47a438eb3..464ff1cdc 100644
--- a/include/asterisk/utils.h
+++ b/include/asterisk/utils.h
@@ -318,6 +318,15 @@ int ast_xml_escape(const char *string, char *outbuf, size_t buflen);
  */
 char *ast_escape_quoted(const char *string, char *outbuf, int buflen);
 
+/*!
+ * \brief Unescape quotes in a string
+ *
+ * \param quote_str The string with quotes to be unescaped
+ *
+ * \note This function mutates the passed-in string.
+ */
+void ast_unescape_quoted(char *quote_str);
+
 static force_inline void ast_slinear_saturated_add(short *input, short *value)
 {
 	int res;