Mercurial > illumos > onarm
view usr/src/cmd/fs.d/cachefs/cfsfstype/cfsfstype.c @ 0:c9caec207d52 b86
Initial porting based on b86
author | Koji Uno <koji.uno@sun.com> |
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date | Tue, 02 Jun 2009 18:56:50 +0900 |
parents | |
children | 1a15d5aaf794 |
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/* * 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 2004 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "@(#)cfsfstype.c 1.10 05/06/08 SMI" /* * * cfsfstype.c * * Cache FS admin utility. Used to glean information out of the * rootfs, frontfs, and backfs variables in the kernel. */ #include <locale.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <errno.h> #include <limits.h> #include <dirent.h> #include <ftw.h> #include <fcntl.h> #include <ctype.h> #include <stdarg.h> #include <sys/param.h> #include <sys/types.h> #include <sys/filio.h> #include <sys/stat.h> #include <sys/statvfs.h> #include <sys/fs/cachefs_fs.h> #include <sys/fs/cachefs_dir.h> static void pr_err(char *fmt, ...); static void usage(char *); /* * * main * * Description: * Main routine for the cfsfstype program. * Arguments: * argc number of command line arguments * argv command line arguments * Returns: * Returns 0 for failure, > 0 for an error. * Preconditions: */ int main(int argc, char **argv) { int c; int nflag = 0; struct statvfs64 svb; int fd; /* verify root running command */ if (getuid() != 0) { pr_err(gettext("must be run by root")); return (1); } (void) setlocale(LC_ALL, ""); #if !defined(TEXT_DOMAIN) #define TEXT_DOMAIN "SYS_TEST" #endif (void) textdomain(TEXT_DOMAIN); /* parse the command line arguments */ while ((c = getopt(argc, argv, "n")) != EOF) { switch (c) { case 'n': nflag = 1; break; default: usage(gettext("illegal option")); return (1); } } argc -= optind; argv += optind; if (argc > 1) { usage(gettext("too many file names specified")); return (1); } /* if just path is specified, just statvfs it */ if (!nflag) { if (argc != 1) { usage(gettext("no file name")); return (1); } if (statvfs64(*argv, &svb) < 0) { pr_err(gettext("Cannot open %s: %s"), *argv, strerror(errno)); return (1); } (void) printf("%s\n", svb.f_basetype); return (0); } fd = open("/", O_RDONLY); if (fd < 0) { perror(gettext("Open of root directory")); return (1); } if (argc == 1) { close(fd); fd = open(*argv, O_RDONLY); if (fd < 0) { perror(gettext("open of specified directory")); return (1); } } if (ioctl(fd, _FIOSTOPCACHE)) { perror(gettext("Convert ioctl fault")); return (1); } return (0); } /* * * usage * * Description: * Prints a usage message for this utility. * Arguments: * msgp message to include with the usage message * Returns: * Preconditions: * precond(msgp) */ static void usage(char *msgp) { fprintf(stderr, gettext("cfsfstype: %s\n"), msgp); fprintf(stderr, gettext("usage: cfsfstype file\n")); } /* * * pr_err * * Description: * Prints an error message to stderr. * Arguments: * fmt printf style format * ... arguments for fmt * Returns: * Preconditions: * precond(fmt) */ static void pr_err(char *fmt, ...) { va_list ap; va_start(ap, fmt); (void) fprintf(stderr, gettext("cfsfstype: ")); (void) vfprintf(stderr, fmt, ap); (void) fprintf(stderr, "\n"); va_end(ap); }