[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/grp/fgetgrent_r.c b/ap/libc/glibc/glibc-2.23/grp/fgetgrent_r.c
new file mode 100644
index 0000000..b5b6c1e
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/grp/fgetgrent_r.c
@@ -0,0 +1,107 @@
+/* Copyright (C) 1991-2016 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 <ctype.h>
+#include <errno.h>
+#include <grp.h>
+#include <stdio.h>
+
+#include <libio/iolibio.h>
+#define flockfile(s) _IO_flockfile (s)
+#define funlockfile(s) _IO_funlockfile (s)
+
+/* Define a line parsing function using the common code
+ used in the nss_files module. */
+
+#define STRUCTURE group
+#define ENTNAME grent
+struct grent_data {};
+
+#define TRAILING_LIST_MEMBER gr_mem
+#define TRAILING_LIST_SEPARATOR_P(c) ((c) == ',')
+#include <nss/nss_files/files-parse.c>
+LINE_PARSER
+(,
+ STRING_FIELD (result->gr_name, ISCOLON, 0);
+ if (line[0] == '\0'
+ && (result->gr_name[0] == '+' || result->gr_name[0] == '-'))
+ {
+ result->gr_passwd = NULL;
+ result->gr_gid = 0;
+ }
+ else
+ {
+ STRING_FIELD (result->gr_passwd, ISCOLON, 0);
+ if (result->gr_name[0] == '+' || result->gr_name[0] == '-')
+ INT_FIELD_MAYBE_NULL (result->gr_gid, ISCOLON, 0, 10, , 0)
+ else
+ INT_FIELD (result->gr_gid, ISCOLON, 0, 10,)
+ }
+ )
+
+
+/* Read one entry from the given stream. */
+int
+__fgetgrent_r (FILE *stream, struct group *resbuf, char *buffer, size_t buflen,
+ struct group **result)
+{
+ char *p;
+ int parse_result;
+
+ flockfile (stream);
+ do
+ {
+ buffer[buflen - 1] = '\xff';
+ p = fgets_unlocked (buffer, buflen, stream);
+ if (__builtin_expect (p == NULL, 0) && feof_unlocked (stream))
+ {
+ funlockfile (stream);
+ *result = NULL;
+ __set_errno (ENOENT);
+ return errno;
+ }
+ if (__builtin_expect (p == NULL, 0) || buffer[buflen - 1] != '\xff')
+ {
+ funlockfile (stream);
+ *result = NULL;
+ __set_errno (ERANGE);
+ return errno;
+ }
+
+ /* Skip leading blanks. */
+ while (isspace (*p))
+ ++p;
+ } while (*p == '\0' || *p == '#' /* Ignore empty and comment lines. */
+ /* Parse the line. If it is invalid, loop to
+ get the next line of the file to parse. */
+ || ! (parse_result = parse_line (p, resbuf,
+ (void *) buffer, buflen,
+ &errno)));
+
+ funlockfile (stream);
+
+ if (__builtin_expect (parse_result, 0) == -1)
+ {
+ /* The parser ran out of space. */
+ *result = NULL;
+ return errno;
+ }
+
+ *result = resbuf;
+ return 0;
+}
+weak_alias (__fgetgrent_r, fgetgrent_r)