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f1bcfa1122
Add a new ares_library_init_mem() initialization function for the library which allows the library user to specify their own malloc, realloc & free equivalents for use library-wide. Store these function pointers in library-wide global variables, defaulting to libc's malloc(), realloc() and free(). Change all calls to malloc, realloc and free to use the function pointer instead. Also ensure that ares_strdup() is always available (even if the local environment includes strdup(3)), and change the library code to always use it. Convert calls to calloc() to use ares_malloc() + memset
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
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/* Copyright 1998 by the Massachusetts Institute of Technology.
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*
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* Permission to use, copy, modify, and distribute this
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* software and its documentation for any purpose and without
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* fee is hereby granted, provided that the above copyright
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* notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting
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* documentation, and that the name of M.I.T. not be used in
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* advertising or publicity pertaining to distribution of the
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* software without specific, written prior permission.
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* M.I.T. makes no representations about the suitability of
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* this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*/
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#include "ares_setup.h"
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#ifdef HAVE_NETDB_H
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#include <netdb.h>
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#endif
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#include "ares.h"
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#include "ares_private.h" /* for memdebug */
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void ares_free_hostent(struct hostent *host)
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{
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char **p;
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if (!host)
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return;
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ares_free((char *)(host->h_name));
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for (p = host->h_aliases; *p; p++)
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ares_free(*p);
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ares_free(host->h_aliases);
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ares_free(host->h_addr_list[0]); /* no matter if there is one or many entries,
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there is only one malloc for all of them */
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ares_free(host->h_addr_list);
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ares_free(host);
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}
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