| 1 | /* |
| 2 | Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2013 |
| 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 | |
| 30 | #ifdef WIN32 |
| 31 | #include "win32_compat.h" |
| 32 | #else |
| 33 | #include <sys/stat.h> |
| 34 | #include <string.h> |
| 35 | #endif |
| 36 | |
| 37 | #ifdef HAVE_POLL_H |
| 38 | #include <poll.h> |
| 39 | #endif |
| 40 | |
| 41 | #ifdef HAVE_UNISTD_H |
| 42 | #include <unistd.h> |
| 43 | #endif |
| 44 | |
| 45 | #include <stdio.h> |
| 46 | #include <stdlib.h> |
| 47 | #include <stdint.h> |
| 48 | #include <sys/types.h> |
| 49 | #include <fcntl.h> |
| 50 | #include "libnfs-zdr.h" |
| 51 | #include "libnfs.h" |
| 52 | #include "libnfs-raw.h" |
| 53 | #include "libnfs-raw-mount.h" |
| 54 | |
| 55 | struct file_context { |
| 56 | int is_nfs; |
| 57 | int fd; |
| 58 | struct nfs_context *nfs; |
| 59 | struct nfsfh *nfsfh; |
| 60 | }; |
| 61 | |
| 62 | void usage(void) |
| 63 | { |
| 64 | fprintf(stderr, "Usage: nfs-cp <src> <dst>\n"); |
| 65 | fprintf(stderr, "<src>,<dst> can either be a local file or " |
| 66 | "an nfs URL.\n"); |
| 67 | exit(0); |
| 68 | } |
| 69 | |
| 70 | static void |
| 71 | free_file_context(struct file_context *file_context) |
| 72 | { |
| 73 | if (file_context->fd != -1) { |
| 74 | close(file_context->fd); |
| 75 | } |
| 76 | if (file_context->nfsfh != NULL) { |
| 77 | nfs_close(file_context->nfs, file_context->nfsfh); |
| 78 | } |
| 79 | if (file_context->nfs != NULL) { |
| 80 | nfs_destroy_context(file_context->nfs); |
| 81 | } |
| 82 | free(file_context); |
| 83 | } |
| 84 | |
| 85 | static int |
| 86 | fstat_file(struct file_context *fc, struct stat *st) |
| 87 | { |
| 88 | if (fc->is_nfs == 0) { |
| 89 | return fstat(fc->fd, st); |
| 90 | } else { |
| 91 | return nfs_fstat(fc->nfs, fc->nfsfh, st); |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | static int64_t |
| 96 | file_pread(struct file_context *fc, char *buf, int64_t count, uint64_t off) |
| 97 | { |
| 98 | if (fc->is_nfs == 0) { |
| 99 | lseek(fc->fd, off, SEEK_SET); |
| 100 | return read(fc->fd, buf, count); |
| 101 | } else { |
| 102 | return nfs_pread(fc->nfs, fc->nfsfh, off, count, buf); |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | static int64_t |
| 107 | file_pwrite(struct file_context *fc, char *buf, int64_t count, uint64_t off) |
| 108 | { |
| 109 | if (fc->is_nfs == 0) { |
| 110 | lseek(fc->fd, off, SEEK_SET); |
| 111 | return write(fc->fd, buf, count); |
| 112 | } else { |
| 113 | return nfs_pwrite(fc->nfs, fc->nfsfh, off, count, buf); |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | static struct file_context * |
| 118 | open_file(const char *url, int flags) |
| 119 | { |
| 120 | struct file_context *file_context; |
| 121 | char *server = NULL, *path = NULL, *file = NULL, *strp; |
| 122 | |
| 123 | file_context = malloc(sizeof(struct file_context)); |
| 124 | if (file_context == NULL) { |
| 125 | fprintf(stderr, "Failed to malloc file_context\n"); |
| 126 | return NULL; |
| 127 | } |
| 128 | file_context->is_nfs = 0; |
| 129 | file_context->fd = -1; |
| 130 | file_context->nfs = NULL; |
| 131 | file_context->nfsfh = NULL; |
| 132 | |
| 133 | |
| 134 | if (strncmp(url, "nfs://", 6)) { |
| 135 | file_context->is_nfs = 0; |
| 136 | file_context->fd = open(url, flags, 0660); |
| 137 | if (file_context->fd == -1) { |
| 138 | fprintf(stderr, "Failed to open %s\n", url); |
| 139 | free_file_context(file_context); |
| 140 | return NULL; |
| 141 | } |
| 142 | return file_context; |
| 143 | } |
| 144 | |
| 145 | file_context->is_nfs = 1; |
| 146 | |
| 147 | file_context->nfs = nfs_init_context(); |
| 148 | if (file_context->nfs == NULL) { |
| 149 | fprintf(stderr, "failed to init context\n"); |
| 150 | free_file_context(file_context); |
| 151 | return NULL; |
| 152 | } |
| 153 | |
| 154 | server = strdup(url + 6); |
| 155 | if (server == NULL) { |
| 156 | fprintf(stderr, "Failed to strdup server string\n"); |
| 157 | free_file_context(file_context); |
| 158 | return NULL; |
| 159 | } |
| 160 | if (server[0] == '/' || server[0] == '\0') { |
| 161 | fprintf(stderr, "Invalid server string.\n"); |
| 162 | free(server); |
| 163 | free_file_context(file_context); |
| 164 | return NULL; |
| 165 | } |
| 166 | strp = strchr(server, '/'); |
| 167 | path = strdup(strp); |
| 168 | *strp = 0; |
| 169 | if (path == NULL) { |
| 170 | fprintf(stderr, "Invalid URL specified.\n"); |
| 171 | free(server); |
| 172 | free_file_context(file_context); |
| 173 | return NULL; |
| 174 | } |
| 175 | |
| 176 | strp = strrchr(path, '/'); |
| 177 | if (strp == NULL) { |
| 178 | fprintf(stderr, "Invalid URL specified.\n"); |
| 179 | free(path); |
| 180 | free(server); |
| 181 | free_file_context(file_context); |
| 182 | return NULL; |
| 183 | } |
| 184 | file = strdup(strp); |
| 185 | *strp = 0; |
| 186 | |
| 187 | if (nfs_mount(file_context->nfs, server, path) != 0) { |
| 188 | fprintf(stderr, "Failed to mount nfs share : %s\n", |
| 189 | nfs_get_error(file_context->nfs)); |
| 190 | free(file); |
| 191 | free(path); |
| 192 | free(server); |
| 193 | free_file_context(file_context); |
| 194 | return NULL; |
| 195 | } |
| 196 | |
| 197 | if (flags == O_RDONLY) { |
| 198 | if (nfs_open(file_context->nfs, file, flags, |
| 199 | &file_context->nfsfh) != 0) { |
| 200 | fprintf(stderr, "Failed to open file : %s\n", |
| 201 | nfs_get_error(file_context->nfs)); |
| 202 | free(file); |
| 203 | free(path); |
| 204 | free(server); |
| 205 | free_file_context(file_context); |
| 206 | return NULL; |
| 207 | } |
| 208 | } else { |
| 209 | if (nfs_creat(file_context->nfs, file, 0660, |
| 210 | &file_context->nfsfh) != 0) { |
| 211 | fprintf(stderr, "Failed to creat file %s %s\n", file, |
| 212 | nfs_get_error(file_context->nfs)); |
| 213 | free(file); |
| 214 | free(path); |
| 215 | free(server); |
| 216 | free_file_context(file_context); |
| 217 | return NULL; |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | free(file); |
| 222 | free(path); |
| 223 | free(server); |
| 224 | |
| 225 | return file_context; |
| 226 | } |
| 227 | |
| 228 | #define BUFSIZE 1024*1024 |
| 229 | static char buf[BUFSIZE]; |
| 230 | |
| 231 | int main(int argc, char *argv[]) |
| 232 | { |
| 233 | int ret; |
| 234 | struct stat st; |
| 235 | struct file_context *src; |
| 236 | struct file_context *dst; |
| 237 | uint64_t off; |
| 238 | int64_t count; |
| 239 | |
| 240 | #ifdef WIN32 |
| 241 | if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) { |
| 242 | printf("Failed to start Winsock2\n"); |
| 243 | return 10; |
| 244 | } |
| 245 | #endif |
| 246 | |
| 247 | #ifdef AROS |
| 248 | aros_init_socket(); |
| 249 | #endif |
| 250 | |
| 251 | if (argc != 3) { |
| 252 | usage(); |
| 253 | } |
| 254 | |
| 255 | src = open_file(argv[1], O_RDONLY); |
| 256 | if (src == NULL) { |
| 257 | fprintf(stderr, "Failed to open %s\n", argv[1]); |
| 258 | return 10; |
| 259 | } |
| 260 | |
| 261 | dst = open_file(argv[2], O_WRONLY|O_CREAT|O_TRUNC); |
| 262 | if (dst == NULL) { |
| 263 | fprintf(stderr, "Failed to open %s\n", argv[2]); |
| 264 | free_file_context(src); |
| 265 | return 10; |
| 266 | } |
| 267 | |
| 268 | if (fstat_file(src, &st) != 0) { |
| 269 | fprintf(stderr, "Failed to fstat source file\n"); |
| 270 | free_file_context(src); |
| 271 | free_file_context(dst); |
| 272 | return 10; |
| 273 | } |
| 274 | |
| 275 | off = 0; |
| 276 | while (off < st.st_size) { |
| 277 | count = st.st_size - off; |
| 278 | if (count > BUFSIZE) { |
| 279 | count = BUFSIZE; |
| 280 | } |
| 281 | count = file_pread(src, buf, count, off); |
| 282 | if (count < 0) { |
| 283 | fprintf(stderr, "Failed to read from source file\n"); |
| 284 | free_file_context(src); |
| 285 | free_file_context(dst); |
| 286 | return 10; |
| 287 | } |
| 288 | count = file_pwrite(dst, buf, count, off); |
| 289 | if (count < 0) { |
| 290 | fprintf(stderr, "Failed to write to dest file\n"); |
| 291 | free_file_context(src); |
| 292 | free_file_context(dst); |
| 293 | return 10; |
| 294 | } |
| 295 | |
| 296 | off += count; |
| 297 | } |
| 298 | printf("copied %d bytes\n", (int)count); |
| 299 | |
| 300 | free_file_context(src); |
| 301 | free_file_context(dst); |
| 302 | |
| 303 | return 0; |
| 304 | } |