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/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2011 Data Differential, http://datadifferential.com/
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Random getaddrinfo failing library for testing getaddrinfo() failures.
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LD_PRELOAD="/usr/lib/libdl.so ./util/libhostile_getaddrinfo.so" ./binary
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#include <libhostile/initialize.h>
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__thread bool is_in_getaddrinfo= 0;
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static int not_until= 500;
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static struct function_st __function;
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static pthread_once_t function_lookup_once = PTHREAD_ONCE_INIT;
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static void set_local(void)
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__function= set_function("getaddrinfo", "HOSTILE_GETADDRINFO");
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bool is_getaddrinfo(void)
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return is_in_getaddrinfo;
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int getaddrinfo(const char *node, const char *service,
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const struct addrinfo *hints,
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struct addrinfo **res)
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(void) pthread_once(&function_lookup_once, set_local);
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if (__function.frequency)
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if (--not_until < 0 && random() % __function.frequency)
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perror("HOSTILE CLOSE() of socket during getaddrinfo()");
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is_in_getaddrinfo= true;
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int ret= __function.function.getaddrinfo(node, service, hints, res);
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is_in_getaddrinfo= false;