int FSSftp::Symlink ( FSPath& path, FSString& str, int* err, FSCInfo* info )
{
MutexLock lock( &mutex );
int ret = CheckSession( err, info );
if ( ret ) { return ret; }
if ( sftp_symlink( sftpSession, ( char* )str.Get( _operParam.charset ), ( char* )path.GetString( _operParam.charset ) ) )
{
if ( err ) { *err = sftp_get_error( sftpSession ); }
return -1;
}
return 0;
}
static void do_sftp(ssh_session session){
sftp_session sftp=sftp_new(session);
sftp_dir dir;
sftp_attributes file;
sftp_statvfs_t sftpstatvfs;
struct statvfs sysstatvfs;
sftp_file fichier;
sftp_file to;
int len=1;
unsigned int i;
char data[DATALEN]={0};
char *lnk;
unsigned int count;
if(!sftp){
fprintf(stderr, "sftp error initialising channel: %s\n",
ssh_get_error(session));
return;
}
if(sftp_init(sftp)){
fprintf(stderr, "error initialising sftp: %s\n",
ssh_get_error(session));
return;
}
printf("Additional SFTP extensions provided by the server:\n");
count = sftp_extensions_get_count(sftp);
for (i = 0; i < count; i++) {
printf("\t%s, version: %s\n",
sftp_extensions_get_name(sftp, i),
sftp_extensions_get_data(sftp, i));
}
/* test symlink and readlink */
if (sftp_symlink(sftp, "/tmp/this_is_the_link",
"/tmp/sftp_symlink_test") < 0) {
fprintf(stderr, "Could not create link (%s)\n", ssh_get_error(session));
return;
}
lnk = sftp_readlink(sftp, "/tmp/sftp_symlink_test");
if (lnk == NULL) {
fprintf(stderr, "Could not read link (%s)\n", ssh_get_error(session));
return;
}
printf("readlink /tmp/sftp_symlink_test: %s\n", lnk);
sftp_unlink(sftp, "/tmp/sftp_symlink_test");
if (sftp_extension_supported(sftp, "*****@*****.**", "2")) {
sftpstatvfs = sftp_statvfs(sftp, "/tmp");
if (sftpstatvfs == NULL) {
fprintf(stderr, "statvfs failed (%s)\n", ssh_get_error(session));
return;
}
printf("sftp statvfs:\n"
"\tfile system block size: %llu\n"
"\tfundamental fs block size: %llu\n"
"\tnumber of blocks (unit f_frsize): %llu\n"
"\tfree blocks in file system: %llu\n"
"\tfree blocks for non-root: %llu\n"
"\ttotal file inodes: %llu\n"
"\tfree file inodes: %llu\n"
"\tfree file inodes for to non-root: %llu\n"
"\tfile system id: %llu\n"
"\tbit mask of f_flag values: %llu\n"
"\tmaximum filename length: %llu\n",
(unsigned long long) sftpstatvfs->f_bsize,
(unsigned long long) sftpstatvfs->f_frsize,
(unsigned long long) sftpstatvfs->f_blocks,
(unsigned long long) sftpstatvfs->f_bfree,
(unsigned long long) sftpstatvfs->f_bavail,
(unsigned long long) sftpstatvfs->f_files,
(unsigned long long) sftpstatvfs->f_ffree,
(unsigned long long) sftpstatvfs->f_favail,
(unsigned long long) sftpstatvfs->f_fsid,
(unsigned long long) sftpstatvfs->f_flag,
(unsigned long long) sftpstatvfs->f_namemax);
sftp_statvfs_free(sftpstatvfs);
if (statvfs("/tmp", &sysstatvfs) < 0) {
fprintf(stderr, "statvfs failed (%s)\n", strerror(errno));
return;
}
printf("sys statvfs:\n"
"\tfile system block size: %llu\n"
"\tfundamental fs block size: %llu\n"
"\tnumber of blocks (unit f_frsize): %llu\n"
"\tfree blocks in file system: %llu\n"
"\tfree blocks for non-root: %llu\n"
"\ttotal file inodes: %llu\n"
"\tfree file inodes: %llu\n"
"\tfree file inodes for to non-root: %llu\n"
"\tfile system id: %llu\n"
"\tbit mask of f_flag values: %llu\n"
"\tmaximum filename length: %llu\n",
(unsigned long long) sysstatvfs.f_bsize,
(unsigned long long) sysstatvfs.f_frsize,
(unsigned long long) sysstatvfs.f_blocks,
(unsigned long long) sysstatvfs.f_bfree,
(unsigned long long) sysstatvfs.f_bavail,
(unsigned long long) sysstatvfs.f_files,
(unsigned long long) sysstatvfs.f_ffree,
(unsigned long long) sysstatvfs.f_favail,
(unsigned long long) sysstatvfs.f_fsid,
(unsigned long long) sysstatvfs.f_flag,
(unsigned long long) sysstatvfs.f_namemax);
}
/* the connection is made */
/* opening a directory */
dir=sftp_opendir(sftp,"./");
if(!dir) {
fprintf(stderr, "Directory not opened(%s)\n", ssh_get_error(session));
return ;
}
/* reading the whole directory, file by file */
while((file=sftp_readdir(sftp,dir))){
fprintf(stderr, "%30s(%.8o) : %s(%.5d) %s(%.5d) : %.10llu bytes\n",
file->name,
file->permissions,
file->owner,
file->uid,
file->group,
file->gid,
(long long unsigned int) file->size);
sftp_attributes_free(file);
}
/* when file=NULL, an error has occured OR the directory listing is end of file */
if(!sftp_dir_eof(dir)){
fprintf(stderr, "Error: %s\n", ssh_get_error(session));
return;
}
if(sftp_closedir(dir)){
fprintf(stderr, "Error: %s\n", ssh_get_error(session));
return;
}
/* this will open a file and copy it into your /home directory */
/* the small buffer size was intended to stress the library. of course, you can use a buffer till 20kbytes without problem */
fichier=sftp_open(sftp,"/usr/bin/ssh",O_RDONLY, 0);
if(!fichier){
fprintf(stderr, "Error opening /usr/bin/ssh: %s\n",
ssh_get_error(session));
return;
}
/* open a file for writing... */
to=sftp_open(sftp,"ssh-copy",O_WRONLY | O_CREAT, 0700);
if(!to){
fprintf(stderr, "Error opening ssh-copy for writing: %s\n",
ssh_get_error(session));
return;
}
while((len=sftp_read(fichier,data,4096)) > 0){
if(sftp_write(to,data,len)!=len){
fprintf(stderr, "Error writing %d bytes: %s\n",
len, ssh_get_error(session));
return;
}
}
printf("finished\n");
if(len<0)
fprintf(stderr, "Error reading file: %s\n", ssh_get_error(session));
sftp_close(fichier);
sftp_close(to);
printf("fichiers ferm\n");
to=sftp_open(sftp,"/tmp/grosfichier",O_WRONLY|O_CREAT, 0644);
for(i=0;i<1000;++i){
len=sftp_write(to,data,DATALEN);
printf("wrote %d bytes\n",len);
if(len != DATALEN){
printf("chunk %d : %d (%s)\n",i,len,ssh_get_error(session));
}
}
sftp_close(to);
/* close the sftp session */
sftp_free(sftp);
printf("sftp session terminated\n");
}