55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/*
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* Copyright (c) 2019
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* MP support header */
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#include "MacportsLegacySupport.h"
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/* realpath wrap */
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#if __MP_LEGACY_SUPPORT_REALPATH_WRAP__
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#include <limits.h>
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#include <stdlib.h>
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#include <dlfcn.h>
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char *realpath(const char * __restrict stringsearch, char * __restrict buffer)
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{
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char *(*real_realpath)(const char * __restrict, char * __restrict);
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#if (__DARWIN_UNIX03 && !defined(_POSIX_C_SOURCE)) || defined(_DARWIN_C_SOURCE) || defined(_DARWIN_BETTER_REALPATH)
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real_realpath = dlsym(RTLD_NEXT, "realpath$DARWIN_EXTSN");
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# else
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real_realpath = dlsym(RTLD_NEXT, "realpath");
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#endif
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if (real_realpath == NULL) {
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exit(EXIT_FAILURE);
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}
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if (buffer == NULL) {
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char *myrealpathbuf = malloc(PATH_MAX);
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if (myrealpathbuf != NULL) {
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return(real_realpath(stringsearch, myrealpathbuf));
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} else {
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return(NULL);
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}
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} else {
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return(real_realpath(stringsearch, buffer));
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}
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}
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/* compatibility function so code does not have to be recompiled */
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char *macports_legacy_realpath(const char * __restrict stringsearch, char * __restrict buffer) { return realpath(stringsearch, buffer); }
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#endif /*__MP_LEGACY_SUPPORT_REALPATH_WRAP__*/
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