diff options
Diffstat (limited to 'source3/utils/smbget.c')
| -rw-r--r-- | source3/utils/smbget.c | 1073 |
1 files changed, 1073 insertions, 0 deletions
diff --git a/source3/utils/smbget.c b/source3/utils/smbget.c new file mode 100644 index 0000000..67ea259 --- /dev/null +++ b/source3/utils/smbget.c @@ -0,0 +1,1073 @@ +/* + 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; + enum credentials_obtained obtained = CRED_UNINITIALISED; + + domain = cli_credentials_get_domain_and_obtained(creds, &obtained); + if (domain != NULL) { + bool overwrite = false; + if (dom[0] == '\0') { + overwrite = true; + } + if (obtained >= CRED_CALLBACK_RESULT) { + overwrite = true; + } + if (overwrite) { + strncpy(dom, domain, dom_len - 1); + } + } + cli_credentials_set_domain(creds, dom, obtained); + + username = cli_credentials_get_username_and_obtained(creds, &obtained); + if (username != NULL) { + bool overwrite = false; + if (usr[0] == '\0') { + overwrite = true; + } + if (obtained >= CRED_CALLBACK_RESULT) { + overwrite = true; + } + if (overwrite) { + strncpy(usr, username, usr_len - 1); + } + } + cli_credentials_set_username(creds, usr, obtained); + + password = cli_credentials_get_password_and_obtained(creds, &obtained); + if (password != NULL) { + bool overwrite = false; + if (pwd[0] == '\0') { + overwrite = true; + } + if (obtained >= CRED_CALLBACK_RESULT) { + overwrite = true; + } + if (overwrite) { + strncpy(pwd, password, pwd_len - 1); + } + } + cli_credentials_set_password(creds, pwd, obtained); + + smbc_set_credentials_with_fallback(ctx, dom, usr, pwd); + + if (!opt.quiet) { + if (usr[0] == '\0') { + printf("Using guest user\n"); + } else if (dom[0] == '\0') { + printf("Using user: %s\n", usr); + } else { + printf("Using domain: %s, user: %s\n", dom, usr); + } + } +} + +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(newname); + 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 dbg_lvl = -1; + 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 = false; + 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); + + /* smbc_new_context() will set the log level to 0 */ + dbg_lvl = debuglevel_get(); + + smb_ctx = smbc_new_context(); + if (smb_ctx == NULL) { + fprintf(stderr, "Unable to initialize libsmbclient\n"); + ok = false; + goto done; + } + smbc_setDebug(smb_ctx, dbg_lvl); + + 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: + gfree_all(); + poptFreeContext(pc); + TALLOC_FREE(frame); + if (ok) { + clean_exit(); + } + return ok ? 0 : 1; +} |