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getexecname.c
(1.5 KB)
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gethostid.c
(2.17 KB)
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getmntany.c
(3.7 KB)
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zone.c
(990 B)
Editing: getexecname.c
/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #include <limits.h> #include <pthread.h> #include <stdlib.h> #include <string.h> #include <unistd.h> const char * getexecname(void) { static char execname[PATH_MAX + 1] = ""; static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER; char *ptr = NULL; ssize_t rc; (void) pthread_mutex_lock(&mtx); if (strlen(execname) == 0) { rc = readlink("/proc/self/exe", execname, sizeof (execname) - 1); if (rc == -1) { execname[0] = '\0'; } else { execname[rc] = '\0'; ptr = execname; } } else { ptr = execname; } (void) pthread_mutex_unlock(&mtx); return (ptr); }
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