289 lines
6.6 KiB
C
289 lines
6.6 KiB
C
/*
|
|
Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2013
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#define _FILE_OFFSET_BITS 64
|
|
#define _GNU_SOURCE
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#ifdef AROS
|
|
#include "aros_compat.h"
|
|
#endif
|
|
|
|
|
|
#ifdef WIN32
|
|
#include <win32/win32_compat.h>
|
|
#pragma comment(lib, "ws2_32.lib")
|
|
WSADATA wsaData;
|
|
#else
|
|
#include <sys/stat.h>
|
|
#include <string.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_POLL_H
|
|
#include <poll.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
#include <sys/types.h>
|
|
#include <fcntl.h>
|
|
#include "libnfs.h"
|
|
#include "libnfs-raw.h"
|
|
#include "libnfs-raw-mount.h"
|
|
|
|
struct file_context {
|
|
int is_nfs;
|
|
int fd;
|
|
struct nfs_context *nfs;
|
|
struct nfsfh *nfsfh;
|
|
struct nfs_url *url;
|
|
};
|
|
|
|
void usage(void)
|
|
{
|
|
fprintf(stderr, "Usage: nfs-cp <src> <dst>\n");
|
|
fprintf(stderr, "<src>,<dst> can either be a local file or "
|
|
"an nfs URL.\n");
|
|
exit(0);
|
|
}
|
|
|
|
static void
|
|
free_file_context(struct file_context *file_context)
|
|
{
|
|
if (file_context->fd != -1) {
|
|
close(file_context->fd);
|
|
}
|
|
if (file_context->nfsfh != NULL) {
|
|
nfs_close(file_context->nfs, file_context->nfsfh);
|
|
}
|
|
if (file_context->nfs != NULL) {
|
|
nfs_destroy_context(file_context->nfs);
|
|
}
|
|
nfs_destroy_url(file_context->url);
|
|
free(file_context);
|
|
}
|
|
|
|
static int
|
|
fstat_file(struct file_context *fc, struct stat *st)
|
|
{
|
|
if (fc->is_nfs == 0) {
|
|
return fstat(fc->fd, st);
|
|
} else {
|
|
int res;
|
|
struct nfs_stat_64 nfs_st;
|
|
res = nfs_fstat64(fc->nfs, fc->nfsfh, &nfs_st);
|
|
st->st_dev = (dev_t)nfs_st.nfs_dev;
|
|
st->st_ino = (ino_t)nfs_st.nfs_ino;
|
|
#ifndef WIN32
|
|
st->st_mode = (mode_t)nfs_st.nfs_mode;
|
|
st->st_nlink = (nlink_t)nfs_st.nfs_nlink;
|
|
st->st_blksize = nfs_st.nfs_blksize;
|
|
st->st_blocks = nfs_st.nfs_blocks;
|
|
#endif
|
|
st->st_uid = (uid_t)nfs_st.nfs_uid;
|
|
st->st_gid = (gid_t)nfs_st.nfs_gid;
|
|
st->st_rdev = (dev_t)nfs_st.nfs_rdev;
|
|
st->st_size = (off_t)nfs_st.nfs_size;
|
|
st->st_atime = nfs_st.nfs_atime;
|
|
st->st_mtime = nfs_st.nfs_mtime;
|
|
st->st_ctime = nfs_st.nfs_ctime;
|
|
|
|
return res;
|
|
}
|
|
}
|
|
|
|
static ssize_t
|
|
file_pread(struct file_context *fc, char *buf, size_t count, off_t off)
|
|
{
|
|
if (fc->is_nfs == 0) {
|
|
lseek(fc->fd, off, SEEK_SET);
|
|
return read(fc->fd, buf, count);
|
|
} else {
|
|
return nfs_pread(fc->nfs, fc->nfsfh, off, count, buf);
|
|
}
|
|
}
|
|
|
|
static ssize_t
|
|
file_pwrite(struct file_context *fc, char *buf, size_t count, off_t off)
|
|
{
|
|
if (fc->is_nfs == 0) {
|
|
lseek(fc->fd, off, SEEK_SET);
|
|
return write(fc->fd, buf, count);
|
|
} else {
|
|
return nfs_pwrite(fc->nfs, fc->nfsfh, off, count, buf);
|
|
}
|
|
}
|
|
|
|
static struct file_context *
|
|
open_file(const char *url, int flags)
|
|
{
|
|
struct file_context *file_context;
|
|
|
|
file_context = malloc(sizeof(struct file_context));
|
|
if (file_context == NULL) {
|
|
fprintf(stderr, "Failed to malloc file_context\n");
|
|
return NULL;
|
|
}
|
|
file_context->is_nfs = 0;
|
|
file_context->fd = -1;
|
|
file_context->nfs = NULL;
|
|
file_context->nfsfh = NULL;
|
|
file_context->url = NULL;
|
|
|
|
if (strncmp(url, "nfs://", 6)) {
|
|
file_context->is_nfs = 0;
|
|
file_context->fd = open(url, flags, 0660);
|
|
if (file_context->fd == -1) {
|
|
fprintf(stderr, "Failed to open %s\n", url);
|
|
free_file_context(file_context);
|
|
return NULL;
|
|
}
|
|
return file_context;
|
|
}
|
|
|
|
file_context->is_nfs = 1;
|
|
|
|
file_context->nfs = nfs_init_context();
|
|
if (file_context->nfs == NULL) {
|
|
fprintf(stderr, "failed to init context\n");
|
|
free_file_context(file_context);
|
|
return NULL;
|
|
}
|
|
|
|
file_context->url = nfs_parse_url_full(file_context->nfs, url);
|
|
if (file_context->url == NULL) {
|
|
fprintf(stderr, "%s\n", nfs_get_error(file_context->nfs));
|
|
free_file_context(file_context);
|
|
return NULL;
|
|
}
|
|
|
|
if (nfs_mount(file_context->nfs, file_context->url->server,
|
|
file_context->url->path) != 0) {
|
|
fprintf(stderr, "Failed to mount nfs share : %s\n",
|
|
nfs_get_error(file_context->nfs));
|
|
free_file_context(file_context);
|
|
return NULL;
|
|
}
|
|
|
|
if (flags == O_RDONLY) {
|
|
if (nfs_open(file_context->nfs, file_context->url->file, flags,
|
|
&file_context->nfsfh) != 0) {
|
|
fprintf(stderr, "Failed to open file %s: %s\n",
|
|
file_context->url->file,
|
|
nfs_get_error(file_context->nfs));
|
|
free_file_context(file_context);
|
|
return NULL;
|
|
}
|
|
} else {
|
|
if (nfs_create(file_context->nfs, file_context->url->file,
|
|
flags, 0660,
|
|
&file_context->nfsfh) != 0) {
|
|
fprintf(stderr, "Failed to creat file %s: %s\n",
|
|
file_context->url->file,
|
|
nfs_get_error(file_context->nfs));
|
|
free_file_context(file_context);
|
|
return NULL;
|
|
}
|
|
}
|
|
return file_context;
|
|
}
|
|
|
|
#define BUFSIZE 1024*1024
|
|
static char buf[BUFSIZE];
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
struct stat st;
|
|
struct file_context *src;
|
|
struct file_context *dst;
|
|
off_t off;
|
|
ssize_t count;
|
|
|
|
#ifdef WIN32
|
|
if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
|
|
printf("Failed to start Winsock2\n");
|
|
return 10;
|
|
}
|
|
#endif
|
|
|
|
#ifdef AROS
|
|
aros_init_socket();
|
|
#endif
|
|
|
|
if (argc != 3) {
|
|
usage();
|
|
}
|
|
|
|
src = open_file(argv[1], O_RDONLY);
|
|
if (src == NULL) {
|
|
fprintf(stderr, "Failed to open %s\n", argv[1]);
|
|
return 10;
|
|
}
|
|
|
|
dst = open_file(argv[2], O_WRONLY|O_CREAT|O_EXCL|O_TRUNC);
|
|
if (dst == NULL) {
|
|
fprintf(stderr, "Failed to open %s\n", argv[2]);
|
|
free_file_context(src);
|
|
return 10;
|
|
}
|
|
|
|
if (fstat_file(src, &st) != 0) {
|
|
fprintf(stderr, "Failed to fstat source file\n");
|
|
free_file_context(src);
|
|
free_file_context(dst);
|
|
return 10;
|
|
}
|
|
|
|
off = 0;
|
|
while (off < st.st_size) {
|
|
count = (size_t)(st.st_size - off);
|
|
if (count > BUFSIZE) {
|
|
count = BUFSIZE;
|
|
}
|
|
count = file_pread(src, buf, count, off);
|
|
if (count < 0) {
|
|
fprintf(stderr, "Failed to read from source file\n");
|
|
free_file_context(src);
|
|
free_file_context(dst);
|
|
return 10;
|
|
}
|
|
count = file_pwrite(dst, buf, count, off);
|
|
if (count < 0) {
|
|
fprintf(stderr, "Failed to write to dest file\n");
|
|
free_file_context(src);
|
|
free_file_context(dst);
|
|
return 10;
|
|
}
|
|
|
|
off += count;
|
|
}
|
|
printf("copied %d bytes\n", (int)off);
|
|
|
|
free_file_context(src);
|
|
free_file_context(dst);
|
|
|
|
return 0;
|
|
}
|