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samba-mirror/source3/utils/smbget.c
Joseph Sutton 11f3680462 s3:utils: Use ‘int’ for popt parameters
Previously we were handing the addresses of bool parameters to popt for
POPT_ARG_NONE parameters. This is not supported, and popt was returning
POPT_ERROR_BADOPERATION for these parameters (not bundled popt, though,
nor on Debian or Ubuntu). Using integers instead ensures that these
addresses are aligned and sized as popt expects.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Volker Lendecke <vl@samba.org>
2023-05-04 00:34:32 +00:00

1037 lines
25 KiB
C

/*
smbget: a wget-like utility with support for recursive downloading of
smb:// urls
Copyright (C) 2003-2004 Jelmer Vernooij <jelmer@samba.org>
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/>. */
#include "includes.h"
#include "system/filesys.h"
#include "lib/cmdline/cmdline.h"
#include "lib/param/param.h"
#include "libsmbclient.h"
#include "cmdline_contexts.h"
#include "auth/credentials/credentials.h"
#include "auth/gensec/gensec.h"
static int columns = 0;
static time_t total_start_time = 0;
static off_t total_bytes = 0;
#define SMB_MAXPATHLEN MAXPATHLEN
/*
* Number of bytes to read when checking whether local and remote file
* are really the same file
*/
#define RESUME_CHECK_SIZE 512
#define RESUME_DOWNLOAD_OFFSET 1024
#define RESUME_CHECK_OFFSET (RESUME_DOWNLOAD_OFFSET+RESUME_CHECK_SIZE)
/* Number of bytes to read at once */
#define SMB_DEFAULT_BLOCKSIZE 64000
struct opt {
char *outputfile;
size_t blocksize;
int quiet;
int dots;
int verbose;
int send_stdout;
int update;
unsigned limit_rate;
};
static struct opt opt = { .blocksize = SMB_DEFAULT_BLOCKSIZE };
static bool smb_download_file(const char *base, const char *name,
bool recursive, bool resume, bool toplevel,
char *outfile);
static int get_num_cols(void)
{
#ifdef TIOCGWINSZ
struct winsize ws;
if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) < 0) {
return 0;
}
return ws.ws_col;
#else
#warning No support for TIOCGWINSZ
char *cols = getenv("COLUMNS");
if (!cols) {
return 0;
}
return atoi(cols);
#endif
}
static void change_columns(int sig)
{
columns = get_num_cols();
}
static void human_readable(off_t s, char *buffer, int l)
{
if (s > 1024 * 1024 * 1024) {
snprintf(buffer, l, "%.2fGB", 1.0 * s / (1024 * 1024 * 1024));
} else if (s > 1024 * 1024) {
snprintf(buffer, l, "%.2fMB", 1.0 * s / (1024 * 1024));
} else if (s > 1024) {
snprintf(buffer, l, "%.2fkB", 1.0 * s / 1024);
} else {
snprintf(buffer, l, "%jdb", (intmax_t)s);
}
}
/*
* Authentication callback for libsmbclient.
*
* The command line parser will take care asking for a password interactively!
*/
static void get_auth_data_with_context_fn(SMBCCTX *ctx,
const char *srv,
const char *shr,
char *dom,
int dom_len,
char *usr,
int usr_len,
char *pwd,
int pwd_len)
{
struct cli_credentials *creds = samba_cmdline_get_creds();
const char *username = NULL;
const char *password = NULL;
const char *domain = NULL;
username = cli_credentials_get_username(creds);
if (username != NULL) {
strncpy(usr, username, usr_len - 1);
}
password = cli_credentials_get_password(creds);
if (password != NULL) {
strncpy(pwd, password, pwd_len - 1);
}
domain = cli_credentials_get_domain(creds);
if (domain != NULL) {
strncpy(dom, domain, dom_len - 1);
}
smbc_set_credentials_with_fallback(ctx, domain, username, password);
if (!opt.quiet && username != NULL) {
if (username[0] == '\0') {
printf("Using guest user\n");
} else {
printf("Using domain: %s, user: %s\n",
domain,
username);
}
}
}
static bool smb_download_dir(const char *base, const char *name, int resume)
{
char path[SMB_MAXPATHLEN];
int dirhandle;
struct smbc_dirent *dirent;
const char *relname = name;
char *tmpname;
bool ok = false;
snprintf(path, SMB_MAXPATHLEN-1, "%s%s%s", base,
(base[0] && name[0] && name[0] != '/' &&
base[strlen(base)-1] != '/') ? "/" : "",
name);
/* List files in directory and call smb_download_file on them */
dirhandle = smbc_opendir(path);
if (dirhandle < 1) {
if (errno == ENOTDIR) {
return smb_download_file(base, name, true, resume,
false, NULL);
}
fprintf(stderr, "Can't open directory %s: %s\n", path,
strerror(errno));
return false;
}
while (*relname == '/') {
relname++;
}
if (strlen(relname) > 0) {
int rc = mkdir(relname, 0755);
if (rc == -1 && errno != EEXIST) {
fprintf(stderr, "Can't create directory %s: %s\n",
relname, strerror(errno));
return false;
}
}
tmpname = SMB_STRDUP(name);
while ((dirent = smbc_readdir(dirhandle))) {
char *newname;
if (!strcmp(dirent->name, ".") || !strcmp(dirent->name, "..")) {
ok = true;
continue;
}
if (asprintf(&newname, "%s/%s", tmpname, dirent->name) == -1) {
free(tmpname);
return false;
}
switch (dirent->smbc_type) {
case SMBC_DIR:
ok = smb_download_dir(base, newname, resume);
break;
case SMBC_WORKGROUP:
ok = smb_download_dir("smb://", dirent->name, resume);
break;
case SMBC_SERVER:
ok = smb_download_dir("smb://", dirent->name, resume);
break;
case SMBC_FILE:
ok = smb_download_file(base, newname, true, resume,
false, NULL);
break;
case SMBC_FILE_SHARE:
ok = smb_download_dir(base, newname, resume);
break;
case SMBC_PRINTER_SHARE:
if (!opt.quiet) {
printf("Ignoring printer share %s\n",
dirent->name);
}
break;
case SMBC_COMMS_SHARE:
if (!opt.quiet) {
printf("Ignoring comms share %s\n",
dirent->name);
}
break;
case SMBC_IPC_SHARE:
if (!opt.quiet) {
printf("Ignoring ipc$ share %s\n",
dirent->name);
}
break;
default:
fprintf(stderr, "Ignoring file '%s' of type '%d'\n",
newname, dirent->smbc_type);
break;
}
if (!ok) {
fprintf(stderr, "Failed to download %s: %s\n",
newname, strerror(errno));
free(tmpname);
return false;
}
free(newname);
}
free(tmpname);
smbc_closedir(dirhandle);
return ok;
}
static char *print_time(long t)
{
static char buffer[100];
int secs, mins, hours;
if (t < -1) {
strncpy(buffer, "Unknown", sizeof(buffer));
return buffer;
}
secs = (int)t % 60;
mins = (int)t / 60 % 60;
hours = (int)t / (60 * 60);
snprintf(buffer, sizeof(buffer) - 1, "%02d:%02d:%02d", hours, mins,
secs);
return buffer;
}
static void print_progress(const char *name, time_t start, time_t now,
off_t start_pos, off_t pos, off_t total)
{
double avg = 0.0;
long eta = -1;
double prcnt = 0.0;
char hpos[22], htotal[22], havg[22];
char *status, *filename;
int len;
if (now - start) {
avg = 1.0 * (pos - start_pos) / (now - start);
}
eta = (total - pos) / avg;
if (total) {
prcnt = 100.0 * pos / total;
}
human_readable(pos, hpos, sizeof(hpos));
human_readable(total, htotal, sizeof(htotal));
human_readable(avg, havg, sizeof(havg));
len = asprintf(&status, "%s of %s (%.2f%%) at %s/s ETA: %s", hpos,
htotal, prcnt, havg, print_time(eta));
if (len == -1) {
return;
}
if (columns) {
int required = strlen(name),
available = columns - len - strlen("[] ");
if (required > available) {
if (asprintf(&filename, "...%s",
name + required - available + 3) == -1) {
return;
}
} else {
filename = SMB_STRNDUP(name, available);
}
} else {
filename = SMB_STRDUP(name);
}
fprintf(stderr, "\r[%s] %s", filename, status);
free(filename);
free(status);
}
/* Return false on error, true on success. */
static bool smb_download_file(const char *base, const char *name,
bool recursive, bool resume, bool toplevel,
char *outfile)
{
int remotehandle, localhandle;
time_t start_time = time_mono(NULL);
const char *newpath;
char path[SMB_MAXPATHLEN];
char checkbuf[2][RESUME_CHECK_SIZE];
char *readbuf = NULL;
off_t offset_download = 0, offset_check = 0, curpos = 0,
start_offset = 0;
struct stat localstat, remotestat;
clock_t start_of_bucket_ticks = 0;
size_t bytes_in_bucket = 0;
size_t bucket_size = 0;
clock_t ticks_to_fill_bucket = 0;
snprintf(path, SMB_MAXPATHLEN-1, "%s%s%s", base,
(*base && *name && name[0] != '/' &&
base[strlen(base)-1] != '/') ? "/" : "",
name);
remotehandle = smbc_open(path, O_RDONLY, 0755);
if (remotehandle < 0) {
switch (errno) {
case EISDIR:
if (!recursive) {
fprintf(stderr,
"%s is a directory. Specify -R "
"to download recursively\n",
path);
return false;
}
return smb_download_dir(base, name, resume);
case ENOENT:
fprintf(stderr,
"%s can't be found on the remote server\n",
path);
return false;
case ENOMEM:
fprintf(stderr, "Not enough memory\n");
return false;
case ENODEV:
fprintf(stderr,
"The share name used in %s does not exist\n",
path);
return false;
case EACCES:
fprintf(stderr, "You don't have enough permissions "
"to access %s\n",
path);
return false;
default:
perror("smbc_open");
return false;
}
}
if (smbc_fstat(remotehandle, &remotestat) < 0) {
fprintf(stderr, "Can't stat %s: %s\n", path, strerror(errno));
return false;
}
if (outfile) {
newpath = outfile;
} else if (!name[0]) {
newpath = strrchr(base, '/');
if (newpath) {
newpath++;
} else {
newpath = base;
}
} else {
newpath = name;
}
if (!toplevel && (newpath[0] == '/')) {
newpath++;
}
/* Open local file according to the mode */
if (opt.update) {
/* if it is up-to-date, skip */
if (stat(newpath, &localstat) == 0 &&
localstat.st_mtime >= remotestat.st_mtime) {
if (opt.verbose) {
printf("%s is up-to-date, skipping\n", newpath);
}
smbc_close(remotehandle);
return true;
}
/* else open it for writing and truncate if it exists */
localhandle = open(
newpath, O_CREAT | O_NONBLOCK | O_RDWR | O_TRUNC, 0775);
if (localhandle < 0) {
fprintf(stderr, "Can't open %s : %s\n", newpath,
strerror(errno));
smbc_close(remotehandle);
return false;
}
/* no offset */
} else if (!opt.send_stdout) {
localhandle = open(newpath, O_CREAT | O_NONBLOCK | O_RDWR |
(!resume ? O_EXCL : 0),
0755);
if (localhandle < 0) {
fprintf(stderr, "Can't open %s: %s\n", newpath,
strerror(errno));
smbc_close(remotehandle);
return false;
}
if (fstat(localhandle, &localstat) != 0) {
fprintf(stderr, "Can't fstat %s: %s\n", newpath,
strerror(errno));
smbc_close(remotehandle);
close(localhandle);
return false;
}
start_offset = localstat.st_size;
if (localstat.st_size &&
localstat.st_size == remotestat.st_size) {
if (opt.verbose) {
fprintf(stderr, "%s is already downloaded "
"completely.\n",
path);
} else if (!opt.quiet) {
fprintf(stderr, "%s\n", path);
}
smbc_close(remotehandle);
close(localhandle);
return true;
}
if (localstat.st_size > RESUME_CHECK_OFFSET &&
remotestat.st_size > RESUME_CHECK_OFFSET) {
offset_download =
localstat.st_size - RESUME_DOWNLOAD_OFFSET;
offset_check = localstat.st_size - RESUME_CHECK_OFFSET;
if (opt.verbose) {
printf("Trying to start resume of %s at %jd\n"
"At the moment %jd of %jd bytes have "
"been retrieved\n",
newpath, (intmax_t)offset_check,
(intmax_t)localstat.st_size,
(intmax_t)remotestat.st_size);
}
}
if (offset_check) {
off_t off1, off2;
/* First, check all bytes from offset_check to
* offset_download */
off1 = lseek(localhandle, offset_check, SEEK_SET);
if (off1 < 0) {
fprintf(stderr,
"Can't seek to %jd in local file %s\n",
(intmax_t)offset_check, newpath);
smbc_close(remotehandle);
close(localhandle);
return false;
}
off2 = smbc_lseek(remotehandle, offset_check, SEEK_SET);
if (off2 < 0) {
fprintf(stderr,
"Can't seek to %jd in remote file %s\n",
(intmax_t)offset_check, newpath);
smbc_close(remotehandle);
close(localhandle);
return false;
}
if (off1 != off2) {
fprintf(stderr, "Offset in local and remote "
"files are different "
"(local: %jd, remote: %jd)\n",
(intmax_t)off1, (intmax_t)off2);
smbc_close(remotehandle);
close(localhandle);
return false;
}
if (smbc_read(remotehandle, checkbuf[0],
RESUME_CHECK_SIZE) != RESUME_CHECK_SIZE) {
fprintf(stderr, "Can't read %d bytes from "
"remote file %s\n",
RESUME_CHECK_SIZE, path);
smbc_close(remotehandle);
close(localhandle);
return false;
}
if (read(localhandle, checkbuf[1], RESUME_CHECK_SIZE) !=
RESUME_CHECK_SIZE) {
fprintf(stderr, "Can't read %d bytes from "
"local file %s\n",
RESUME_CHECK_SIZE, name);
smbc_close(remotehandle);
close(localhandle);
return false;
}
if (memcmp(checkbuf[0], checkbuf[1],
RESUME_CHECK_SIZE) == 0) {
if (opt.verbose) {
printf("Current local and remote file "
"appear to be the same. "
"Starting download from "
"offset %jd\n",
(intmax_t)offset_download);
}
} else {
fprintf(stderr, "Local and remote file appear "
"to be different, not "
"doing resume for %s\n",
path);
smbc_close(remotehandle);
close(localhandle);
return false;
}
}
} else {
localhandle = STDOUT_FILENO;
start_offset = 0;
offset_download = 0;
offset_check = 0;
}
/* We implement rate limiting by filling up a bucket with bytes and
* checking, once the bucket is filled, if it was filled too fast.
* If so, we sleep for some time to get an average transfer rate that
* equals to the one set by the user.
*
* The bucket size directly affects the traffic characteristics.
* The smaller the bucket the more frequent the pause/resume cycle.
* A large bucket can result in burst of high speed traffic and large
* pauses. A cycle of 100ms looks like a good value. This value (in
* ticks) is held in `ticks_to_fill_bucket`. The `bucket_size` is
* calculated as:
* `limit_rate * 1024 * / (CLOCKS_PER_SEC / ticks_to_fill_bucket)`
*
* After selecting the bucket size we also need to check the blocksize
* of the transfer, since this is the minimum unit of traffic that we
* can observe. Achieving a ~10% precision requires a blocksize with a
* maximum size of `bucket_size / 10`.
*/
if (opt.limit_rate > 0) {
unsigned max_block_size;
/* This is the time that the bucket should take to fill. */
ticks_to_fill_bucket = 100 /*ms*/ * CLOCKS_PER_SEC / 1000;
/* This is the size of the bucket in bytes.
* If we fill the bucket too quickly we should pause */
bucket_size = opt.limit_rate * 1024 / (CLOCKS_PER_SEC / ticks_to_fill_bucket);
max_block_size = bucket_size / 10;
max_block_size = max_block_size > 0 ? max_block_size : 1;
if (opt.blocksize > max_block_size) {
if (opt.blocksize != SMB_DEFAULT_BLOCKSIZE) {
fprintf(stderr,
"Warning: Overriding block size to %d \
due to limit-rate", max_block_size);
}
opt.blocksize = max_block_size;
}
start_of_bucket_ticks = clock();
}
readbuf = (char *)SMB_MALLOC(opt.blocksize);
if (!readbuf) {
fprintf(stderr, "Failed to allocate %zu bytes for read "
"buffer (%s)", opt.blocksize, strerror(errno));
if (localhandle != STDOUT_FILENO) {
close(localhandle);
}
return false;
}
/* Now, download all bytes from offset_download to the end */
for (curpos = offset_download; curpos < remotestat.st_size;
curpos += opt.blocksize) {
ssize_t bytesread;
ssize_t byteswritten;
/* Rate limiting. This pauses the transfer to limit traffic. */
if (opt.limit_rate > 0) {
if (bytes_in_bucket > bucket_size) {
clock_t now_ticks = clock();
clock_t diff_ticks = now_ticks
- start_of_bucket_ticks;
/* Check if the bucket filled up too fast. */
if (diff_ticks < ticks_to_fill_bucket) {
/* Pause until `ticks_to_fill_bucket` */
double sleep_us
= (ticks_to_fill_bucket - diff_ticks)
* 1000000.0 / CLOCKS_PER_SEC;
usleep(sleep_us);
}
/* Reset the byte counter and the ticks. */
bytes_in_bucket = 0;
start_of_bucket_ticks = clock();
}
}
bytesread = smbc_read(remotehandle, readbuf, opt.blocksize);
if (opt.limit_rate > 0) {
bytes_in_bucket += bytesread;
}
if(bytesread < 0) {
fprintf(stderr,
"Can't read %zu bytes at offset %jd, file %s\n",
opt.blocksize, (intmax_t)curpos, path);
smbc_close(remotehandle);
if (localhandle != STDOUT_FILENO) {
close(localhandle);
}
free(readbuf);
return false;
}
total_bytes += bytesread;
byteswritten = write(localhandle, readbuf, bytesread);
if (byteswritten != bytesread) {
fprintf(stderr,
"Can't write %zd bytes to local file %s at "
"offset %jd\n", bytesread, path,
(intmax_t)curpos);
free(readbuf);
smbc_close(remotehandle);
if (localhandle != STDOUT_FILENO) {
close(localhandle);
}
return false;
}
if (opt.dots) {
fputc('.', stderr);
} else if (!opt.quiet) {
print_progress(newpath, start_time, time_mono(NULL),
start_offset, curpos,
remotestat.st_size);
}
}
free(readbuf);
if (opt.dots) {
fputc('\n', stderr);
printf("%s downloaded\n", path);
} else if (!opt.quiet) {
int i;
fprintf(stderr, "\r%s", path);
if (columns) {
for (i = strlen(path); i < columns; i++) {
fputc(' ', stderr);
}
}
fputc('\n', stderr);
}
smbc_close(remotehandle);
if (localhandle != STDOUT_FILENO) {
close(localhandle);
}
return true;
}
static void clean_exit(void)
{
char bs[100];
human_readable(total_bytes, bs, sizeof(bs));
if (!opt.quiet) {
fprintf(stderr, "Downloaded %s in %lu seconds\n", bs,
(unsigned long)(time_mono(NULL) - total_start_time));
}
exit(0);
}
static void signal_quit(int v)
{
clean_exit();
}
int main(int argc, char **argv)
{
int c = 0;
const char *file = NULL;
int smb_encrypt = false;
int resume = 0, recursive = 0;
TALLOC_CTX *frame = talloc_stackframe();
bool ok = false;
const char **argv_const = discard_const_p(const char *, argv);
struct poptOption long_options[] = {
POPT_AUTOHELP
{
.longName = "guest",
.shortName = 'a',
.argInfo = POPT_ARG_NONE,
.arg = NULL,
.val = 'a',
.descrip = "Work as user guest"
},
{
.longName = "encrypt",
.shortName = 'e',
.argInfo = POPT_ARG_NONE,
.arg = &smb_encrypt,
.val = 1,
.descrip = "Encrypt SMB transport"
},
{
.longName = "resume",
.shortName = 'r',
.argInfo = POPT_ARG_NONE,
.arg = &resume,
.val = 1,
.descrip = "Automatically resume aborted files"
},
{
.longName = "update",
.shortName = 'u',
.argInfo = POPT_ARG_NONE,
.arg = &opt.update,
.val = 1,
.descrip = "Download only when remote file is "
"newer than local file or local file "
"is missing"
},
{
.longName = "recursive",
.shortName = 0,
.argInfo = POPT_ARG_NONE,
.arg = &recursive,
.val = true,
.descrip = "Recursively download files"
},
{
.longName = "blocksize",
.shortName = 'b',
.argInfo = POPT_ARG_INT,
.arg = &opt.blocksize,
.val = 'b',
.descrip = "Change number of bytes in a block"
},
{
.longName = "outputfile",
.shortName = 'o',
.argInfo = POPT_ARG_STRING,
.arg = &opt.outputfile,
.val = 'o',
.descrip = "Write downloaded data to specified file"
},
{
.longName = "stdout",
.shortName = 0,
.argInfo = POPT_ARG_NONE,
.arg = &opt.send_stdout,
.val = true,
.descrip = "Write data to stdout"
},
{
.longName = "dots",
.shortName = 'D',
.argInfo = POPT_ARG_NONE,
.arg = &opt.dots,
.val = 1,
.descrip = "Show dots as progress indication"
},
{
.longName = "quiet",
.shortName = 'q',
.argInfo = POPT_ARG_NONE,
.arg = &opt.quiet,
.val = 1,
.descrip = "Be quiet"
},
{
.longName = "verbose",
.shortName = 'v',
.argInfo = POPT_ARG_NONE,
.arg = &opt.verbose,
.val = 1,
.descrip = "Be verbose"
},
{
.longName = "limit-rate",
.shortName = 0,
.argInfo = POPT_ARG_INT,
.arg = &opt.limit_rate,
.val = 'l',
.descrip = "Limit download speed to this many KB/s"
},
POPT_COMMON_SAMBA
POPT_COMMON_CONNECTION
POPT_COMMON_CREDENTIALS
POPT_LEGACY_S3
POPT_COMMON_VERSION
POPT_TABLEEND
};
poptContext pc = NULL;
struct cli_credentials *creds = NULL;
enum smb_encryption_setting encryption_state = SMB_ENCRYPTION_DEFAULT;
enum credentials_use_kerberos use_kerberos = CRED_USE_KERBEROS_DESIRED;
smbc_smb_encrypt_level encrypt_level = SMBC_ENCRYPTLEVEL_DEFAULT;
#if 0
enum smb_signing_setting signing_state = SMB_SIGNING_DEFAULT;
const char *use_signing = "auto";
#endif
bool is_nt_hash = false;
uint32_t gensec_features;
bool use_wbccache = false;
SMBCCTX *smb_ctx = NULL;
int rc;
smb_init_locale();
ok = samba_cmdline_init(frame,
SAMBA_CMDLINE_CONFIG_CLIENT,
false);
if (!ok) {
goto done;
}
#ifdef SIGWINCH
signal(SIGWINCH, change_columns);
#endif
signal(SIGINT, signal_quit);
signal(SIGTERM, signal_quit);
pc = samba_popt_get_context(getprogname(),
argc,
argv_const,
long_options,
0);
if (pc == NULL) {
ok = false;
goto done;
}
creds = samba_cmdline_get_creds();
while ((c = poptGetNextOpt(pc)) != -1) {
switch (c) {
case 'a':
cli_credentials_set_anonymous(creds);
break;
case POPT_ERROR_BADOPT:
fprintf(stderr, "\nInvalid option %s: %s\n\n",
poptBadOption(pc, 0), poptStrerror(c));
poptPrintUsage(pc, stderr, 0);
ok = false;
goto done;
}
}
if (c < -1) {
fprintf(stderr, "%s: %s\n",
poptBadOption(pc, POPT_BADOPTION_NOALIAS),
poptStrerror(c));
ok = true;
goto done;
}
if ((opt.send_stdout || resume || opt.outputfile) && opt.update) {
fprintf(stderr, "The -o, -R or -O and -U options can not be "
"used together.\n");
ok = true;
goto done;
}
if ((opt.send_stdout || opt.outputfile) && recursive) {
fprintf(stderr, "The -o or -O and -R options can not be "
"used together.\n");
ok = true;
goto done;
}
if (opt.outputfile && opt.send_stdout) {
fprintf(stderr, "The -o and -O options can not be "
"used together.\n");
ok = true;
goto done;
}
samba_cmdline_burn(argc, argv);
smb_ctx = smbc_new_context();
if (smb_ctx == NULL) {
fprintf(stderr, "Unable to initialize libsmbclient\n");
ok = false;
goto done;
}
smbc_setDebug(smb_ctx, debuglevel_get());
rc = smbc_setConfiguration(smb_ctx, lp_default_path());
if (rc < 0) {
ok = false;
goto done;
}
smbc_setFunctionAuthDataWithContext(smb_ctx,
get_auth_data_with_context_fn);
ok = smbc_init_context(smb_ctx);
if (!ok) {
goto done;
}
smbc_set_context(smb_ctx);
encryption_state = cli_credentials_get_smb_encryption(creds);
switch (encryption_state) {
case SMB_ENCRYPTION_REQUIRED:
encrypt_level = SMBC_ENCRYPTLEVEL_REQUIRE;
break;
case SMB_ENCRYPTION_DESIRED:
case SMB_ENCRYPTION_IF_REQUIRED:
encrypt_level = SMBC_ENCRYPTLEVEL_REQUEST;
break;
case SMB_ENCRYPTION_OFF:
encrypt_level = SMBC_ENCRYPTLEVEL_NONE;
break;
case SMB_ENCRYPTION_DEFAULT:
encrypt_level = SMBC_ENCRYPTLEVEL_DEFAULT;
break;
}
if (smb_encrypt) {
encrypt_level = SMBC_ENCRYPTLEVEL_REQUIRE;
}
smbc_setOptionSmbEncryptionLevel(smb_ctx, encrypt_level);
#if 0
signing_state = cli_credentials_get_smb_signing(creds);
if (encryption_state >= SMB_ENCRYPTION_DESIRED) {
signing_state = SMB_SIGNING_REQUIRED;
}
switch (signing_state) {
case SMB_SIGNING_REQUIRED:
use_signing = "required";
break;
case SMB_SIGNING_DEFAULT:
case SMB_SIGNING_DESIRED:
case SMB_SIGNING_IF_REQUIRED:
use_signing = "yes";
break;
case SMB_SIGNING_OFF:
use_signing = "off";
break;
default:
use_signing = "auto";
break;
}
/* FIXME: There is no libsmbclient function to set signing state */
#endif
use_kerberos = cli_credentials_get_kerberos_state(creds);
switch (use_kerberos) {
case CRED_USE_KERBEROS_REQUIRED:
smbc_setOptionUseKerberos(smb_ctx, true);
smbc_setOptionFallbackAfterKerberos(smb_ctx, false);
break;
case CRED_USE_KERBEROS_DESIRED:
smbc_setOptionUseKerberos(smb_ctx, true);
smbc_setOptionFallbackAfterKerberos(smb_ctx, true);
break;
case CRED_USE_KERBEROS_DISABLED:
smbc_setOptionUseKerberos(smb_ctx, false);
break;
}
/* Check if the password supplied is an NT hash */
is_nt_hash = cli_credentials_is_password_nt_hash(creds);
smbc_setOptionUseNTHash(smb_ctx, is_nt_hash);
/* Check if we should use the winbind ccache */
gensec_features = cli_credentials_get_gensec_features(creds);
use_wbccache = (gensec_features & GENSEC_FEATURE_NTLM_CCACHE);
smbc_setOptionUseCCache(smb_ctx, use_wbccache);
columns = get_num_cols();
total_start_time = time_mono(NULL);
while ((file = poptGetArg(pc))) {
if (!recursive) {
ok = smb_download_file(file, "", recursive, resume,
true, opt.outputfile);
} else {
ok = smb_download_dir(file, "", resume);
}
}
done:
poptFreeContext(pc);
TALLOC_FREE(frame);
if (ok) {
clean_exit();
}
return ok ? 0 : 1;
}