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;
  67
  68 void print_usage(void)
  69 {
  70         fprintf(stderr, "Usage: nfs-ls [-?|--help|--usage] [-R|--recursive] [-s|--summary] <url>\n");
  71 }
  72
  73 void process_dir(struct nfs_context *nfs, char *dir, int level) {
  74         int ret;
  75         struct nfsdirent *nfsdirent;
  76         struct statvfs svfs;
  77         struct nfsdir *nfsdir;
  78         struct stat st;
  79
  80         if (!level) {
  81                 printf("Recursion detected!\n");
  82                 exit(10);
  83         }
  84
  85         ret = nfs_opendir(nfs, dir, &nfsdir);
  86         if (ret != 0) {
  87                 printf("Failed to opendir(\"%s\")\n", dir, nfs_get_error(nfs));
  88                 exit(10);
  89         }
  90         while((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) {
  91                 char path[1024];
  92
  93                 if (!strcmp(nfsdirent->name, ".") || !strcmp(nfsdirent->name, "..")) {
  94                         continue;
  95                 }
  96
  97                 snprintf(path, 1024, "%s/%s", dir, nfsdirent->name);
  98                 ret = nfs_stat(nfs, path, &st);
  99                 if (ret != 0) {
 100                         fprintf(stderr, "Failed to stat(%s) %s\n", path, nfs_get_error(nfs));
 101                         continue;
 102                 }
 103
 104                 switch (st.st_mode & S_IFMT) {
 105 #ifndef WIN32
 106                 case S_IFLNK:
 107                         printf("l");
 108                         break;
 109 #endif
 110                 case S_IFREG:
 111                         printf("-");
 112                         break;
 113                 case S_IFDIR:
 114                         printf("d");
 115                         break;
 116                 case S_IFCHR:
 117                         printf("c");
 118                         break;
 119                 case S_IFBLK:
 120                         printf("b");
 121                         break;
 122                 }
 123                 printf("%c%c%c",
 124                         "-r"[!!(st.st_mode & S_IRUSR)],
 125                         "-w"[!!(st.st_mode & S_IWUSR)],
 126                         "-x"[!!(st.st_mode & S_IXUSR)]
 127                 );
 128                 printf("%c%c%c",
 129                         "-r"[!!(st.st_mode & S_IRGRP)],
 130                         "-w"[!!(st.st_mode & S_IWGRP)],
 131                         "-x"[!!(st.st_mode & S_IXGRP)]
 132                 );
 133                 printf("%c%c%c",
 134                         "-r"[!!(st.st_mode & S_IROTH)],
 135                         "-w"[!!(st.st_mode & S_IWOTH)],
 136                         "-x"[!!(st.st_mode & S_IXOTH)]
 137                 );
 138                 printf(" %2d", (int) st.st_nlink);
 139                 printf(" %5d", st.st_uid);
 140                 printf(" %5d", st.st_gid);
 141                 printf(" %12" PRId64, st.st_size);
 142
 143                 printf(" %s\n", path + 1);
 144
 145                 if (recursive && (st.st_mode & S_IFMT) == S_IFDIR) {
 146                         process_dir(nfs, path, level - 1);
 147                 }
 148         }
 149         nfs_closedir(nfs, nfsdir);
 150 }
 151
 152 int main(int argc, char *argv[])
 153 {
 154         struct nfs_context *nfs = NULL;
 155         int i, ret = 1, res;
 156         uint64_t offset;
 157         struct client client;
 158         struct nfsfh  *nfsfh;
 159         struct statvfs stvfs;
 160         struct nfs_url *url;
 161         exports export, tmp;
 162         char *server = NULL, *path = NULL, *strp;
 163
 164 #ifdef WIN32
 165         if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
 166                 printf("Failed to start Winsock2\n");
 167                 exit(10);
 168         }
 169 #endif
 170
 171 #ifdef AROS
 172         aros_init_socket();
 173 #endif
 174
 175         if (argc < 2) {
 176                 fprintf(stderr, "No URL specified.\n");
 177                 goto finished;
 178         }
 179
 180         for (i=1; i < argc -1; i++) {
 181                 if (!strcmp(argv[i], "-R") || !strcmp(argv[i], "--recursive")) {
 182                         recursive++;
 183                 } else if (!strcmp(argv[i], "-s") || !strcmp(argv[i], "--summary")) {
 184                         summary++;
 185                 } else {
 186                         goto finished;
 187                 }
 188         }
 189
 190         nfs = nfs_init_context();
 191         if (nfs == NULL) {
 192                 printf("failed to init context\n");
 193                 goto finished;
 194         }
 195
 196         url = nfs_parse_url_dir(nfs, argv[argc - 1]);
 197         if (url == NULL) {
 198                 fprintf(stderr, "%s\n", nfs_get_error(nfs));
 199                 goto finished;
 200         }
 201
 202         client.server = url->server;
 203         client.export = url->path;
 204         client.is_finished = 0;
 205
 206         if (nfs_mount(nfs, client.server, client.export) != 0) {
 207                 fprintf(stderr, "Failed to mount nfs share : %s\n", nfs_get_error(nfs));
 208                 goto finished;
 209         }
 210
 211         process_dir(nfs, "", 16);
 212
 213         if (summary) {
 214                 if (nfs_statvfs(nfs, "/", &stvfs) != 0) {
 215                         goto finished;
 216                 }
 217                 printf("\n%12" PRId64 " of %12" PRId64 " bytes free.\n",
 218                        stvfs.f_frsize * stvfs.f_bfree, stvfs.f_frsize * stvfs.f_blocks);
 219         }
 220
 221         ret = 0;
 222
 223 finished:
 224         if (ret) {
 225                 print_usage();
 226         }
 227         free(server);
 228         free(path);
 229         nfs_destroy_url(url);
 230         if (nfs != NULL) {
 231                 nfs_destroy_context(nfs);
 232         }
 233         return ret;
 234 }
 235