/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <sys/sysmacros.h>
#include <libintl.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <errno.h>
#include <dlfcn.h>
#include <link.h>
#include "utils.h"
static void *lib_hdl = NULL;
static const char PNAME_FMT[] = "%s: ";
static const char ERRNO_FMT[] = ": %s\n";
static const char *pname;
/*PRINTFLIKE1*/
void
warn(const char *format, ...)
{
int err = errno;
va_list alist;
if (pname != NULL)
(void) fprintf(stderr, gettext(PNAME_FMT), pname);
va_start(alist, format);
(void) vfprintf(stderr, format, alist);
va_end(alist);
if (strchr(format, '\n') == NULL)
(void) fprintf(stderr, gettext(ERRNO_FMT), strerror(err));
}
/*PRINTFLIKE1*/
void
die(const char *format, ...)
{
int err = errno;
va_list alist;
if (pname != NULL)
(void) fprintf(stderr, gettext(PNAME_FMT), pname);
va_start(alist, format);
(void) vfprintf(stderr, format, alist);
va_end(alist);
if (strchr(format, '\n') == NULL)
(void) fprintf(stderr, gettext(ERRNO_FMT), strerror(err));
exit(E_ERROR);
}
const char *
getpname(const char *arg0)
{
const char *p = strrchr(arg0, '/');
if (p == NULL)
p = arg0;
else
p++;
pname = p;
return (p);
}
int
valid_abspath(const char *p)
{
if (p[0] != '/') {
warn(gettext("pathname is not an absolute path -- %s\n"), p);
return (0);
}
if (strlen(p) > MAXPATHLEN) {
warn(gettext("pathname is too long -- %s\n"), p);
return (0);
}
return (1);
}
/*
* Wrapper for dlopen'ing a library.
* The caller must call closelib() once
* access to the library is no longer needed.
*/
void *
openlib(const char *lib)
{
lib_hdl = dlopen(lib, RTLD_LAZY);
return (lib_hdl);
}
void
closelib()
{
if (lib_hdl != NULL)
(void) dlclose(lib_hdl);
}