lib/string.h

   1 /*
   2  * Copyright (c) 2009, 2011 Nicira Networks.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #ifndef STRING_WRAPPER_H
  18 #define STRING_WRAPPER_H 1
  19
  20 #include_next <string.h>
  21
  22 /* Glibc 2.7 has a bug in strtok_r when compiling with optimization that can
  23  * cause segfaults if the delimiters argument is a compile-time constant that
  24  * has exactly 1 character:
  25  *
  26  *      http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614
  27  *
  28  * The bug is only present in the inline version of strtok_r(), so force the
  29  * out-of-line version to be used instead. */
  30 #if HAVE_STRTOK_R_BUG
  31 #undef strtok_r
  32 #endif
  33
  34 #ifndef HAVE_STRNLEN
  35 #undef strnlen
  36 #define strnlen rpl_strnlen
  37 size_t strnlen(const char *, size_t maxlen);
  38 #endif
  39
  40 #endif /* string.h wrapper */