examples/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         struct nfs_stat_64 st;
  95
  96         if (!level) {
  97                 printf("Recursion detected!\n");
  98                 exit(10);
  99         }
 100
 101         ret = nfs_opendir(nfs, dir, &nfsdir);
 102         if (ret != 0) {
 103                 printf("Failed to opendir(\"%s\") %s\n", dir, nfs_get_error(nfs));
 104                 exit(10);
 105         }
 106         while((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) {
 107                 char path[1024];
 108
 109                 if (!strcmp(nfsdirent->name, ".") || !strcmp(nfsdirent->name, "..")) {
 110                         continue;
 111                 }
 112
 113                 snprintf(path, 1024, "%s/%s", dir, nfsdirent->name);
 114                 ret = nfs_stat64(nfs, path, &st);
 115                 if (ret != 0) {
 116                         fprintf(stderr, "Failed to stat(%s) %s\n", path, nfs_get_error(nfs));
 117                         continue;
 118                 }
 119
 120                 switch (st.nfs_mode & S_IFMT) {
 121 #ifndef WIN32
 122                 case S_IFLNK:
 123                         printf("l");
 124                         break;
 125 #endif
 126                 case S_IFREG:
 127                         printf("-");
 128                         break;
 129                 case S_IFDIR:
 130                         printf("d");
 131                         break;
 132                 case S_IFCHR:
 133                         printf("c");
 134                         break;
 135                 case S_IFBLK:
 136                         printf("b");
 137                         break;
 138                 }
 139                 printf("%c%c%c",
 140                         "-r"[!!(st.nfs_mode & S_IRUSR)],
 141                         "-w"[!!(st.nfs_mode & S_IWUSR)],
 142                         "-x"[!!(st.nfs_mode & S_IXUSR)]
 143                 );
 144                 printf("%c%c%c",
 145                         "-r"[!!(st.nfs_mode & S_IRGRP)],
 146                         "-w"[!!(st.nfs_mode & S_IWGRP)],
 147                         "-x"[!!(st.nfs_mode & S_IXGRP)]
 148                 );
 149                 printf("%c%c%c",
 150                         "-r"[!!(st.nfs_mode & S_IROTH)],
 151                         "-w"[!!(st.nfs_mode & S_IWOTH)],
 152                         "-x"[!!(st.nfs_mode & S_IXOTH)]
 153                 );
 154                 printf(" %2d", (int)st.nfs_nlink);
 155                 printf(" %5d", (int)st.nfs_uid);
 156                 printf(" %5d", (int)st.nfs_gid);
 157                 printf(" %12" PRId64, st.nfs_size);
 158
 159                 printf(" %s\n", path + 1);
 160
 161                 if (recursive && (st.nfs_mode & S_IFMT) == S_IFDIR) {
 162                         process_dir(nfs, path, level - 1);
 163                 }
 164         }
 165         nfs_closedir(nfs, nfsdir);
 166 }
 167
 168 int main(int argc, char *argv[])
 169 {
 170         struct nfs_context *nfs = NULL;
 171         int i, ret = 1, res;
 172         uint64_t offset;
 173         struct client client;
 174         struct statvfs stvfs;
 175         struct nfs_url *url;
 176         exports export, tmp;
 177
 178 #ifdef WIN32
 179         if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
 180                 printf("Failed to start Winsock2\n");
 181                 exit(10);
 182         }
 183 #endif
 184
 185 #ifdef AROS
 186         aros_init_socket();
 187 #endif
 188
 189         if (argc < 2) {
 190                 fprintf(stderr, "No URL specified.\n");
 191                 goto finished;
 192         }
 193
 194         for (i=1; i < argc -1; i++) {
 195                 if (!strcmp(argv[i], "-R") || !strcmp(argv[i], "--recursive")) {
 196                         recursive++;
 197                 } else if (!strcmp(argv[i], "-s") || !strcmp(argv[i], "--summary")) {
 198                         summary++;
 199                 } else if (!strcmp(argv[i], "-D") || !strcmp(argv[i], "--discovery")) {
 200                         discovery++;
 201                 } else{
 202                         goto finished;
 203                 }
 204         }
 205
 206         nfs = nfs_init_context();
 207         if (nfs == NULL) {
 208                 printf("failed to init context\n");
 209                 goto finished;
 210         }
 211
 212         if (discovery) {
 213                 url = nfs_parse_url_incomplete(nfs, argv[argc - 1]);
 214                 if (url == NULL) {
 215                         fprintf(stderr, "%s\n", nfs_get_error(nfs));
 216                         goto finished;
 217                 }
 218                 if (!url->server) {
 219                         struct nfs_server_list *srvrs;
 220                         struct nfs_server_list *srv;
 221
 222                         srvrs = nfs_find_local_servers();
 223                         if (srvrs == NULL) {
 224                                 fprintf(stderr, "Failed to find local servers.\n");
 225                                 goto finished;
 226                         }
 227                         for (srv=srvrs; srv; srv = srv->next) {
 228                                 if (recursive) {
 229                                         process_server(srv->addr);
 230                                 } else {
 231                                         printf("nfs://%s\n", srv->addr);
 232                                 }
 233                         }
 234                         free_nfs_srvr_list(srvrs);
 235                         ret = 0;
 236                         goto finished;
 237                 }
 238                 if (url->server && !url->path) {
 239                         ret = process_server(url->server);
 240                         goto finished;
 241                 }
 242                 nfs_destroy_url(url);
 243         }
 244
 245         url = nfs_parse_url_dir(nfs, argv[argc - 1]);
 246         if (url == NULL) {
 247                 fprintf(stderr, "%s\n", nfs_get_error(nfs));
 248                 goto finished;
 249         }
 250
 251         client.server = url->server;
 252         client.export = url->path;
 253         client.is_finished = 0;
 254
 255         if ((ret = nfs_mount(nfs, client.server, client.export)) != 0) {
 256                 fprintf(stderr, "Failed to mount nfs share : %s\n", nfs_get_error(nfs));
 257                 goto finished;
 258         }
 259
 260         process_dir(nfs, "", 16);
 261
 262         if (summary) {
 263                 if (nfs_statvfs(nfs, "", &stvfs) != 0) {
 264                         goto finished;
 265                 }
 266                 printf("\n%12" PRId64 " of %12" PRId64 " bytes free.\n",
 267                        stvfs.f_frsize * stvfs.f_bfree, stvfs.f_frsize * stvfs.f_blocks);
 268         }
 269
 270         ret = 0;
 271 finished:
 272         if (ret > 0) {
 273                 print_usage();
 274         }
 275         nfs_destroy_url(url);
 276         if (nfs != NULL) {
 277                 nfs_destroy_context(nfs);
 278         }
 279         return ret;
 280 }