utils: add a nfs-stat utility
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>master
Ronnie Sahlberg
parent
a7c6637980
commit
be437aa102
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@ -1,4 +1,4 @@
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set(UTILITIES nfs-cat nfs-ls)
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set(UTILITIES nfs-cat nfs-ls nfs-stat)
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if(NOT CMAKE_SYSTEM_NAME STREQUAL Windows)
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list(APPEND UTILITIES nfs-cp)
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@ -1,4 +1,4 @@
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bin_PROGRAMS = nfs-cat nfs-ls
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bin_PROGRAMS = nfs-cat nfs-ls nfs-stat
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if !HAVE_WIN32
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bin_PROGRAMS += nfs-cp
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@ -16,3 +16,4 @@ COMMON_LIBS = ../lib/libnfs.la $(LIBSOCKET)
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nfs_cat_LDADD = $(COMMON_LIBS)
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nfs_ls_LDADD = $(COMMON_LIBS)
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nfs_cp_LDADD = $(COMMON_LIBS)
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nfs_stat_LDADD = $(COMMON_LIBS)
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@ -0,0 +1,292 @@
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/*
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Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2021
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#define _FILE_OFFSET_BITS 64
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#define _GNU_SOURCE
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef AROS
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#include "aros_compat.h"
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#endif
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#ifdef WIN32
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#include <win32/win32_compat.h>
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#pragma comment(lib, "ws2_32.lib")
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WSADATA wsaData;
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#else
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#include <sys/stat.h>
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#include <string.h>
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#endif
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#ifdef HAVE_POLL_H
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#include <poll.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include "libnfs.h"
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#include "libnfs-raw.h"
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#include "libnfs-raw-mount.h"
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struct file_context {
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int fd;
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struct nfs_context *nfs;
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struct nfsfh *nfsfh;
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struct nfs_url *url;
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};
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void usage(void)
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{
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fprintf(stderr, "Usage: nfs-stat <file>\n");
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fprintf(stderr, "<file> stat an nfs file.\n");
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exit(0);
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}
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void
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free_file_context(struct file_context *file_context)
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{
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if (file_context->fd != -1) {
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close(file_context->fd);
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}
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if (file_context->nfsfh != NULL) {
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nfs_close(file_context->nfs, file_context->nfsfh);
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}
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if (file_context->nfs != NULL) {
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nfs_destroy_context(file_context->nfs);
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}
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nfs_destroy_url(file_context->url);
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free(file_context);
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}
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struct file_context *
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open_file(const char *url, int flags)
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{
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struct file_context *file_context;
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file_context = malloc(sizeof(struct file_context));
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if (file_context == NULL) {
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fprintf(stderr, "Failed to malloc file_context\n");
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return NULL;
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}
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file_context->fd = -1;
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file_context->nfs = NULL;
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file_context->nfsfh = NULL;
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file_context->url = NULL;
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file_context->nfs = nfs_init_context();
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if (file_context->nfs == NULL) {
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fprintf(stderr, "failed to init context\n");
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free_file_context(file_context);
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return NULL;
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}
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file_context->url = nfs_parse_url_full(file_context->nfs, url);
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if (file_context->url == NULL) {
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fprintf(stderr, "%s\n", nfs_get_error(file_context->nfs));
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free_file_context(file_context);
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return NULL;
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}
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if (nfs_mount(file_context->nfs, file_context->url->server,
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file_context->url->path) != 0) {
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fprintf(stderr, "Failed to mount nfs share : %s\n",
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nfs_get_error(file_context->nfs));
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free_file_context(file_context);
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return NULL;
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}
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if (flags == O_RDONLY) {
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if (nfs_open(file_context->nfs, file_context->url->file, flags,
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&file_context->nfsfh) != 0) {
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fprintf(stderr, "Failed to open file %s: %s\n",
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file_context->url->file,
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nfs_get_error(file_context->nfs));
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free_file_context(file_context);
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return NULL;
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}
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} else {
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if (nfs_creat(file_context->nfs, file_context->url->file, 0660,
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&file_context->nfsfh) != 0) {
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fprintf(stderr, "Failed to creat file %s: %s\n",
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file_context->url->file,
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nfs_get_error(file_context->nfs));
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free_file_context(file_context);
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return NULL;
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}
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}
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return file_context;
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}
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char *get_file_type(int mode)
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{
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switch (mode & S_IFMT) {
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#ifndef WIN32
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case S_IFLNK: return "symbolic link";
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#endif
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case S_IFDIR: return "directory";
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case S_IFCHR: return "character device";
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case S_IFBLK: return "block device";
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default: return "regular file";
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}
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}
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char uidbuf[16];
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char gidbuf[16];
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#ifdef WIN32
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char *uid_to_name(int uid)
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{
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sprintf(uidbuf, "%d", uid);
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return uidbuf;
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}
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char *gid_to_name(int gid)
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{
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sprintf(gidbuf, "%d", gid);
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return gidbuf;
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}
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#else
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#include <sys/types.h>
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#include <grp.h>
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#include <pwd.h>
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char *uid_to_name(int uid)
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{
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struct passwd *pw;
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pw = getpwuid(uid);
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if (pw) {
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return pw->pw_name;
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} else {
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sprintf(uidbuf, "%d", uid);
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return uidbuf;
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}
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}
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char *gid_to_name(int gid)
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{
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struct group *gr;
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gr = getgrgid(gid);
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if (gr) {
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return gr->gr_name;
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} else {
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sprintf(gidbuf, "%d", gid);
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return gidbuf;
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}
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}
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#endif
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char access_bits[11];
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char *get_access_bits(int mode)
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{
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switch (mode & S_IFMT) {
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#ifndef WIN32
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case S_IFLNK: access_bits[0] = 'l'; break;
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#endif
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case S_IFREG: access_bits[0] = '-'; break;
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case S_IFDIR: access_bits[0] = 'd'; break;
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case S_IFCHR: access_bits[0] = 'c'; break;
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case S_IFBLK: access_bits[0] = 'b'; break;
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default: access_bits[0] = '*';
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}
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access_bits[1] = "-r"[!!(mode & S_IRUSR)];
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access_bits[2] = "-w"[!!(mode & S_IWUSR)];
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access_bits[3] = "-xSs"[ !!(mode & S_IXUSR)
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#ifndef WIN32
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+ 2*!!(mode & S_ISUID)
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#endif
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];
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access_bits[4] = "-r"[!!(mode & S_IRGRP)];
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access_bits[5] = "-w"[!!(mode & S_IWGRP)];
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access_bits[6] = "-xSs"[ !!(mode & S_IXGRP)
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#ifndef WIN32
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+ 2*!!(mode & S_ISGID)
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#endif
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];
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access_bits[7] = "-r"[!!(mode & S_IROTH)];
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access_bits[8] = "-w"[!!(mode & S_IWOTH)];
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access_bits[9] = "-xTt"[ !!(mode & S_IXOTH)
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#ifndef WIN32
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+ 2*!!(mode & S_ISVTX)
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#endif
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];
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return access_bits;
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}
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#define BUFSIZE 1024*1024
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static char buf[BUFSIZE];
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int main(int argc, char *argv[])
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{
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int ret;
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struct file_context *nf;
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struct nfs_stat_64 st;
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uint64_t off;
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int64_t count;
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#ifdef WIN32
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if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
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printf("Failed to start Winsock2\n");
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return 10;
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}
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#endif
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#ifdef AROS
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aros_init_socket();
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#endif
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if (argc < 2) {
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usage();
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}
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nf = open_file(argv[1], O_RDONLY);
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if (nf == NULL) {
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fprintf(stderr, "Failed to open %s\n", argv[1]);
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exit(10);
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}
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if (nfs_fstat64(nf->nfs, nf->nfsfh, &st) < 0) {
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fprintf(stderr, "Failed to stat %s\n", argv[1]);
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exit(10);
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}
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printf(" File:%s\n", argv[1]);
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printf(" Size: %-16dBlocks: %-11d IO Block: %d %s\n",
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st.nfs_size, st.nfs_blocks, st.nfs_blksize,
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get_file_type(st.nfs_mode));
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printf("Inode:%-12dLinks %d\n",
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st.nfs_ino, st.nfs_nlink);
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printf("Access: (%04o/%s) Uid: ( %d/%s) Gid: ( %d/%s)\n",
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st.nfs_mode & 07777, get_access_bits(st.nfs_mode),
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st.nfs_uid, uid_to_name(st.nfs_uid),
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st.nfs_gid, gid_to_name(st.nfs_gid));
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printf("Access: %s", ctime(&st.nfs_atime));
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printf("Modify: %s", ctime(&st.nfs_mtime));
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printf("Change: %s", ctime(&st.nfs_ctime));
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free_file_context(nf);
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return 0;
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}
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