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81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/* @(#)getexecpath.c 1.1 10/11/18 Copyright 2006-2010 J. Schilling */
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/*
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* Copyright (c) 2006.2010 J. Schilling
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*/
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/*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* See the file CDDL.Schily.txt in this distribution for details.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file CDDL.Schily.txt from this distribution.
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*/
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#include <schily/mconfig.h>
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#include <schily/types.h>
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#include <schily/unistd.h>
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#include <schily/string.h>
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#include <schily/standard.h>
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#include <schily/schily.h>
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#if (defined(sun) || defined(__sun) || defined(__sun__)) && defined(__SVR4)
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#define PATH_IMPL
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#define METHOD_SYMLINK
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#define SYMLINK_PATH "/proc/self/path/a.out" /* Solaris 10 -> ... */
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#endif
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#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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#define PATH_IMPL
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#define METHOD_SYMLINK
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#define SYMLINK_PATH "/proc/curproc/file" /* /proc may nor be mounted */
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#endif
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#if defined(__linux__) || defined(__linux)|| defined(linux)
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#define PATH_IMPL
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#define METHOD_SYMLINK
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#define SYMLINK_PATH "/proc/self/exe"
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#endif
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#if defined(HAVE_PROC_PIDPATH) /* Mac OS X */
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#ifdef HAVE_LIBPROC_H
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#include <libproc.h>
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#endif
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#define PATH_IMPL
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#endif
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/*
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* TODO: AIX: /proc/$$/object/a.out -> plain file, match via st_dev/st_ino
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*/
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EXPORT char *
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getexecpath()
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{
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#ifdef PATH_IMPL
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#ifdef METHOD_SYMLINK
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char buf[1024];
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ssize_t len;
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len = readlink(SYMLINK_PATH, buf, sizeof (buf)-1);
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if (len == -1)
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return (NULL);
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buf[len] = '\0';
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return (strdup(buf));
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#endif
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#ifdef HAVE_PROC_PIDPATH /* Mac OS X */
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char buf[1024];
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int len;
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len = proc_pidpath(getpid(), buf, sizeof (buf));
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if (len == -1)
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return (NULL);
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return (strdup(buf));
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#endif
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#else
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return (NULL);
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#endif
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}
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