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.h"
  55 #include "libnfs-raw.h"
  56 #include "libnfs-raw-mount.h"
  57
  58 struct client {
  59        char *server;
  60        char *export;
  61        uint32_t mount_port;
  62        int is_finished;
  63 };
  64
  65 int recursive = 0, summary = 0, discovery = 0;
  66
  67 void print_usage(void)
  68 {
  69         fprintf(stderr, "Usage: nfs-ls [-?|--help|--usage] [-R|--recursive] [-s|--summary] [-D|--discovery] <url>\n");
  70 }
  71
  72 int process_server(const char *server) {
  73         struct exportnode *exports;
  74         struct exportnode *export;
  75
  76         exports = mount_getexports(server);
  77         if (exports == NULL) {
  78                 fprintf(stderr, "Failed to get exports for server %s.\n", server);
  79                 return -1;
  80         }
  81         for (export=exports; export; export = export->ex_next) {
  82                 printf("nfs://%s%s\n", server, export->ex_dir);
  83         }
  84         mount_free_export_list(exports);
  85         return 0;
  86 }
  87
  88 void process_dir(struct nfs_context *nfs, char *dir, int level) {
  89         int ret;
  90         struct nfsdirent *nfsdirent;
  91         struct statvfs svfs;
  92         struct nfsdir *nfsdir;
  93
  94         if (!level) {
  95                 printf("Recursion detected!\n");
  96                 exit(10);
  97         }
  98
  99         ret = nfs_opendir(nfs, dir, &nfsdir);
 100         if (ret != 0) {
 101                 printf("Failed to opendir(\"%s\") %s\n", dir, nfs_get_error(nfs));
 102                 exit(10);
 103         }
 104         while((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) {
 105                 char path[1024];
 106
 107                 if (!strcmp(nfsdirent->name, ".") || !strcmp(nfsdirent->name, "..")) {
 108                         continue;
 109                 }
 110                 snprintf(path, 1024, "%s/%s", dir, nfsdirent->name);
 111
 112                 switch (nfsdirent->mode & S_IFMT) {
 113 #ifndef WIN32
 114                 case S_IFLNK:
 115                         printf("l");
 116                         break;
 117 #endif
 118                 case S_IFREG:
 119                         printf("-");
 120                         break;
 121                 case S_IFDIR:
 122                         printf("d");
 123                         break;
 124                 case S_IFCHR:
 125                         printf("c");
 126                         break;
 127                 case S_IFBLK:
 128                         printf("b");
 129                         break;
 130                 }
 131                 printf("%c%c%c",
 132                         "-r"[!!(nfsdirent->mode & S_IRUSR)],
 133                         "-w"[!!(nfsdirent->mode & S_IWUSR)],
 134                         "-x"[!!(nfsdirent->mode & S_IXUSR)]
 135                 );
 136                 printf("%c%c%c",
 137                         "-r"[!!(nfsdirent->mode & S_IRGRP)],
 138                         "-w"[!!(nfsdirent->mode & S_IWGRP)],
 139                         "-x"[!!(nfsdirent->mode & S_IXGRP)]
 140                 );
 141                 printf("%c%c%c",
 142                         "-r"[!!(nfsdirent->mode & S_IROTH)],
 143                         "-w"[!!(nfsdirent->mode & S_IWOTH)],
 144                         "-x"[!!(nfsdirent->mode & S_IXOTH)]
 145                 );
 146                 printf(" %2d", (int)nfsdirent->nlink);
 147                 printf(" %5d", (int)nfsdirent->uid);
 148                 printf(" %5d", (int)nfsdirent->gid);
 149                 printf(" %12" PRId64, nfsdirent->size);
 150
 151                 printf(" %s\n", path + 1);
 152
 153                 if (recursive && (nfsdirent->mode & S_IFMT) == S_IFDIR) {
 154                         process_dir(nfs, path, level - 1);
 155                 }
 156         }
 157         nfs_closedir(nfs, nfsdir);
 158 }
 159
 160 int main(int argc, char *argv[])
 161 {
 162         struct nfs_context *nfs = NULL;
 163         int i, ret = 1, res;
 164         uint64_t offset;
 165         struct client client;
 166         struct statvfs stvfs;
 167         struct nfs_url *url = NULL;
 168         exports export, tmp;
 169
 170 #ifdef WIN32
 171         if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
 172                 printf("Failed to start Winsock2\n");
 173                 exit(10);
 174         }
 175 #endif
 176
 177 #ifdef AROS
 178         aros_init_socket();
 179 #endif
 180
 181         if (argc < 2) {
 182                 fprintf(stderr, "No URL specified.\n");
 183                 goto finished;
 184         }
 185
 186         for (i=1; i < argc -1; i++) {
 187                 if (!strcmp(argv[i], "-R") || !strcmp(argv[i], "--recursive")) {
 188                         recursive++;
 189                 } else if (!strcmp(argv[i], "-s") || !strcmp(argv[i], "--summary")) {
 190                         summary++;
 191                 } else if (!strcmp(argv[i], "-D") || !strcmp(argv[i], "--discovery")) {
 192                         discovery++;
 193                 } else{
 194                         goto finished;
 195                 }
 196         }
 197
 198         nfs = nfs_init_context();
 199         if (nfs == NULL) {
 200                 printf("failed to init context\n");
 201                 goto finished;
 202         }
 203
 204         if (discovery) {
 205                 url = nfs_parse_url_incomplete(nfs, argv[argc - 1]);
 206                 if (url == NULL) {
 207                         fprintf(stderr, "%s\n", nfs_get_error(nfs));
 208                         goto finished;
 209                 }
 210                 if (!url->server) {
 211                         struct nfs_server_list *srvrs;
 212                         struct nfs_server_list *srv;
 213
 214                         srvrs = nfs_find_local_servers();
 215                         if (srvrs == NULL) {
 216                                 fprintf(stderr, "Failed to find local servers.\n");
 217                                 goto finished;
 218                         }
 219                         for (srv=srvrs; srv; srv = srv->next) {
 220                                 if (recursive) {
 221                                         process_server(srv->addr);
 222                                 } else {
 223                                         printf("nfs://%s\n", srv->addr);
 224                                 }
 225                         }
 226                         free_nfs_srvr_list(srvrs);
 227                         ret = 0;
 228                         goto finished;
 229                 }
 230                 if (url->server && !url->path) {
 231                         ret = process_server(url->server);
 232                         goto finished;
 233                 }
 234                 nfs_destroy_url(url);
 235         }
 236
 237         url = nfs_parse_url_dir(nfs, argv[argc - 1]);
 238         if (url == NULL) {
 239                 fprintf(stderr, "%s\n", nfs_get_error(nfs));
 240                 goto finished;
 241         }
 242
 243         client.server = url->server;
 244         client.export = url->path;
 245         client.is_finished = 0;
 246
 247         if ((ret = nfs_mount(nfs, client.server, client.export)) != 0) {
 248                 fprintf(stderr, "Failed to mount nfs share : %s\n", nfs_get_error(nfs));
 249                 goto finished;
 250         }
 251
 252         process_dir(nfs, "", 16);
 253
 254         if (summary) {
 255                 if (nfs_statvfs(nfs, "", &stvfs) != 0) {
 256                         goto finished;
 257                 }
 258                 printf("\n%12" PRId64 " of %12" PRId64 " bytes free.\n",
 259                        stvfs.f_frsize * stvfs.f_bfree, stvfs.f_frsize * stvfs.f_blocks);
 260         }
 261
 262         ret = 0;
 263 finished:
 264         if (ret > 0) {
 265                 print_usage();
 266         }
 267         nfs_destroy_url(url);
 268         if (nfs != NULL) {
 269                 nfs_destroy_context(nfs);
 270         }
 271         return ret;
 272 }