[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/c-ares/src/ares_expand_string.c b/ap/app/c-ares/src/ares_expand_string.c
new file mode 100644
index 0000000..ed5476b
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+++ b/ap/app/c-ares/src/ares_expand_string.c
@@ -0,0 +1,70 @@
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+
+#include "ares.h"
+#include "ares_private.h" /* for the memdebug */
+
+/* Simply decodes a length-encoded character string. The first byte of the
+ * input is the length of the string to be returned and the bytes thereafter
+ * are the characters of the string. The returned result will be NULL
+ * terminated.
+ */
+int ares_expand_string(const unsigned char *encoded,
+ const unsigned char *abuf,
+ int alen,
+ unsigned char **s,
+ long *enclen)
+{
+ unsigned char *q;
+ union {
+ ssize_t sig;
+ size_t uns;
+ } elen;
+
+ if (encoded == abuf+alen)
+ return ARES_EBADSTR;
+
+ elen.uns = *encoded;
+ if (encoded+elen.sig+1 > abuf+alen)
+ return ARES_EBADSTR;
+
+ encoded++;
+
+ *s = ares_malloc(elen.uns+1);
+ if (*s == NULL)
+ return ARES_ENOMEM;
+ q = *s;
+ strncpy((char *)q, (char *)encoded, elen.uns);
+ q[elen.uns] = '\0';
+
+ *s = q;
+
+ *enclen = (long)(elen.sig+1);
+
+ return ARES_SUCCESS;
+}
+