[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/stdlib/mblen.c b/ap/libc/glibc/glibc-2.22/stdlib/mblen.c
new file mode 100644
index 0000000..fc0ada7
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/stdlib/mblen.c
@@ -0,0 +1,68 @@
+/* Copyright (C) 1991-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library 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 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+#include <gconv.h>
+#include <wcsmbs/wcsmbsload.h>
+
+
+/* Internal state. */
+static mbstate_t state;
+
+/* Return the length of the multibyte character (if there is one)
+ at S which is no longer than N characters.
+ The ISO C standard says that the `mblen' function must not change
+ the state of the `mbtowc' function. */
+int
+mblen (const char *s, size_t n)
+{
+ int result;
+
+ /* If S is NULL the function has to return null or not null
+ depending on the encoding having a state depending encoding or
+ not. */
+ if (s == NULL)
+ {
+ const struct gconv_fcts *fcts;
+
+ /* Get the conversion functions. */
+ fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE));
+
+ /* Reset the state. */
+ memset (&state, '\0', sizeof state);
+
+ result = fcts->towc->__stateful;
+ }
+ else if (*s == '\0')
+ /* According to the ISO C 89 standard this is the expected behaviour. */
+ result = 0;
+ else
+ {
+ memset (&state, '\0', sizeof state);
+
+ result = __mbrtowc (NULL, s, n, &state);
+
+ /* The `mbrtowc' functions tell us more than we need. Fold the -1
+ and -2 result into -1. */
+ if (result < 0)
+ result = -1;
+ }
+
+ return result;
+}