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a51019f4ec
It is a common mistake to have failed to autoload the module due to permission issues when running a ZFS command as a user. "Operation not permitted" is an unhelpfully vague error message. Use a thread-local message buffer to format a nicer error message. We can infer that loading the kernel module failed if the module is not loaded. This can be extended with heuristics for other errors in the future. While looking at this stuff, remove an unused thread-local message buffer found in libspl and remove some inaccurate verbiage from the comment on libzfs_load_module. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ryan Moeller <ryan@iXsystems.com> Closes #11033
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/*
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* CDDL HEADER START
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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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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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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 at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
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* Copyright 2006 Ricardo Correia. All rights reserved.
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* Use is subject to license terms.
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*/
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/* Copyright (c) 1988 AT&T */
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/* All Rights Reserved */
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#include <stdio.h>
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#include <string.h>
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#include <sys/errno.h>
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#include <sys/mnttab.h>
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#include <sys/types.h>
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#include <sys/sysmacros.h>
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#include <sys/stat.h>
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#include <unistd.h>
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int
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getextmntent(const char *path, struct extmnttab *entry, struct stat64 *statbuf)
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{
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struct statfs sfs;
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if (strlen(path) >= MAXPATHLEN) {
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(void) fprintf(stderr, "invalid object; pathname too long\n");
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return (-1);
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}
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if (stat64(path, statbuf) != 0) {
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(void) fprintf(stderr, "cannot open '%s': %s\n",
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path, strerror(errno));
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return (-1);
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}
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if (statfs(path, &sfs) != 0) {
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(void) fprintf(stderr, "%s: %s\n", path,
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strerror(errno));
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return (-1);
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}
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statfs2mnttab(&sfs, (struct mnttab *)entry);
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return (0);
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}
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