utils/nfs-ls.c

   1 /*
   2    Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2010
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18 #define _FILE_OFFSET_BITS 64
  19 #define _GNU_SOURCE
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include "config.h"
  23 #endif
  24
  25 #ifdef AROS
  26 #include "aros_compat.h"
  27 #endif
  28
  29 #ifdef WIN32
  30 #include "win32_compat.h"
  31 #pragma comment(lib, "ws2_32.lib")
  32 WSADATA wsaData;
  33 #define PRId64 "ll"
  34 #else
  35 #include <inttypes.h>
  36 #include <string.h>
  37 #include <sys/stat.h>
  38 #include <sys/statvfs.h>
  39 #ifndef AROS
  40 #include <sys/statvfs.h>
  41 #endif
  42 #endif
  43
  44 #ifdef HAVE_UNISTD_H
  45 #include <unistd.h>
  46 #endif
  47
  48 #include <stdio.h>
  49 #include <stdlib.h>
  50 #include <stdint.h>
  51 #include <sys/types.h>
  52 #include <sys/stat.h>
  53 #include <fcntl.h>
  54 #include "libnfs-zdr.h"
  55 #include "libnfs.h"
  56 #include "libnfs-raw.h"
  57 #include "libnfs-raw-mount.h"
  58
  59 struct client {
  60        char *server;
  61        char *export;
  62        uint32_t mount_port;
  63        int is_finished;
  64 };
  65
  66 int recursive = 0, summary = 0, discovery = 0;
  67
  68 void print_usage(void)
  69 {
  70         fprintf(stderr, "Usage: nfs-ls [-?|--help|--usage] [-R|--recursive] [-s|--summary] [-D|--discovery] <url>\n");
  71 }
  72
  73 int process_server(const char *server) {
  74         struct exportnode *exports;
  75         struct exportnode *export;
  76
  77         exports = mount_getexports(server);
  78         if (exports == NULL) {
  79                 fprintf(stderr, "Failed to get exports for server %s.\n", server);
  80                 return -1;
  81         }
  82         for (export=exports; export; export = export->ex_next) {
  83                 printf("nfs://%s%s\n", server, export->ex_dir);
  84         }
  85         mount_free_export_list(exports);
  86         return 0;
  87 }
  88
  89 void process_dir(struct nfs_context *nfs, char *dir, int level) {
  90         int ret;
  91         struct nfsdirent *nfsdirent;
  92         struct statvfs svfs;
  93         struct nfsdir *nfsdir;
  94
  95         if (!level) {
  96                 printf("Recursion detected!\n");
  97                 exit(10);
  98         }
  99
 100         ret = nfs_opendir(nfs, dir, &nfsdir);
 101         if (ret != 0) {
 102                 printf("Failed to opendir(\"%s\") %s\n", dir, nfs_get_error(nfs));
 103                 exit(10);
 104         }
 105         while((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) {
 106                 char path[1024];
 107
 108                 if (!strcmp(nfsdirent->name, ".") || !strcmp(nfsdirent->name, "..")) {
 109                         continue;
 110                 }
 111                 snprintf(path, 1024, "%s/%s", dir, nfsdirent->name);
 112
 113                 switch (nfsdirent->mode & S_IFMT) {
 114 #ifndef WIN32
 115                 case S_IFLNK:
 116                         printf("l");
 117                         break;
 118 #endif
 119                 case S_IFREG:
 120                         printf("-");
 121                         break;
 122                 case S_IFDIR:
 123                         printf("d");
 124                         break;
 125                 case S_IFCHR:
 126                         printf("c");
 127                         break;
 128                 case S_IFBLK:
 129                         printf("b");
 130                         break;
 131                 }
 132                 printf("%c%c%c",
 133                         "-r"[!!(nfsdirent->mode & S_IRUSR)],
 134                         "-w"[!!(nfsdirent->mode & S_IWUSR)],
 135                         "-x"[!!(nfsdirent->mode & S_IXUSR)]
 136                 );
 137                 printf("%c%c%c",
 138                         "-r"[!!(nfsdirent->mode & S_IRGRP)],
 139                         "-w"[!!(nfsdirent->mode & S_IWGRP)],
 140                         "-x"[!!(nfsdirent->mode & S_IXGRP)]
 141                 );
 142                 printf("%c%c%c",
 143                         "-r"[!!(nfsdirent->mode & S_IROTH)],
 144                         "-w"[!!(nfsdirent->mode & S_IWOTH)],
 145                         "-x"[!!(nfsdirent->mode & S_IXOTH)]
 146                 );
 147                 printf(" %2d", (int)nfsdirent->nlink);
 148                 printf(" %5d", (int)nfsdirent->uid);
 149                 printf(" %5d", (int)nfsdirent->gid);
 150                 printf(" %12" PRId64, nfsdirent->size);
 151
 152                 printf(" %s\n", path + 1);
 153
 154                 if (recursive && (nfsdirent->mode & S_IFMT) == S_IFDIR) {
 155                         process_dir(nfs, path, level - 1);
 156                 }
 157         }
 158         nfs_closedir(nfs, nfsdir);
 159 }
 160
 161 int main(int argc, char *argv[])
 162 {
 163         struct nfs_context *nfs = NULL;
 164         int i, ret = 1, res;
 165         uint64_t offset;
 166         struct client client;
 167         struct statvfs stvfs;
 168         struct nfs_url *url = NULL;
 169         exports export, tmp;
 170
 171 #ifdef WIN32
 172         if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
 173                 printf("Failed to start Winsock2\n");
 174                 exit(10);
 175         }
 176 #endif
 177
 178 #ifdef AROS
 179         aros_init_socket();
 180 #endif
 181
 182         if (argc < 2) {
 183                 fprintf(stderr, "No URL specified.\n");
 184                 goto finished;
 185         }
 186
 187         for (i=1; i < argc -1; i++) {
 188                 if (!strcmp(argv[i], "-R") || !strcmp(argv[i], "--recursive")) {
 189                         recursive++;
 190                 } else if (!strcmp(argv[i], "-s") || !strcmp(argv[i], "--summary")) {
 191                         summary++;
 192                 } else if (!strcmp(argv[i], "-D") || !strcmp(argv[i], "--discovery")) {
 193                         discovery++;
 194                 } else{
 195                         goto finished;
 196                 }
 197         }
 198
 199         nfs = nfs_init_context();
 200         if (nfs == NULL) {
 201                 printf("failed to init context\n");
 202                 goto finished;
 203         }
 204
 205         if (discovery) {
 206                 url = nfs_parse_url_incomplete(nfs, argv[argc - 1]);
 207                 if (url == NULL) {
 208                         fprintf(stderr, "%s\n", nfs_get_error(nfs));
 209                         goto finished;
 210                 }
 211                 if (!url->server) {
 212                         struct nfs_server_list *srvrs;
 213                         struct nfs_server_list *srv;
 214
 215                         srvrs = nfs_find_local_servers();
 216                         if (srvrs == NULL) {
 217                                 fprintf(stderr, "Failed to find local servers.\n");
 218                                 goto finished;
 219                         }
 220                         for (srv=srvrs; srv; srv = srv->next) {
 221                                 if (recursive) {
 222                                         process_server(srv->addr);
 223                                 } else {
 224                                         printf("nfs://%s\n", srv->addr);
 225                                 }
 226                         }
 227                         free_nfs_srvr_list(srvrs);
 228                         ret = 0;
 229                         goto finished;
 230                 }
 231                 if (url->server && !url->path) {
 232                         ret = process_server(url->server);
 233                         goto finished;
 234                 }
 235                 nfs_destroy_url(url);
 236         }
 237
 238         url = nfs_parse_url_dir(nfs, argv[argc - 1]);
 239         if (url == NULL) {
 240                 fprintf(stderr, "%s\n", nfs_get_error(nfs));
 241                 goto finished;
 242         }
 243
 244         client.server = url->server;
 245         client.export = url->path;
 246         client.is_finished = 0;
 247
 248         if ((ret = nfs_mount(nfs, client.server, client.export)) != 0) {
 249                 fprintf(stderr, "Failed to mount nfs share : %s\n", nfs_get_error(nfs));
 250                 goto finished;
 251         }
 252
 253         process_dir(nfs, "", 16);
 254
 255         if (summary) {
 256                 if (nfs_statvfs(nfs, "", &stvfs) != 0) {
 257                         goto finished;
 258                 }
 259                 printf("\n%12" PRId64 " of %12" PRId64 " bytes free.\n",
 260                        stvfs.f_frsize * stvfs.f_bfree, stvfs.f_frsize * stvfs.f_blocks);
 261         }
 262
 263         ret = 0;
 264 finished:
 265         if (ret > 0) {
 266                 print_usage();
 267         }
 268         nfs_destroy_url(url);
 269         if (nfs != NULL) {
 270                 nfs_destroy_context(nfs);
 271         }
 272         return ret;
 273 }