diff options
Diffstat (limited to 'source/utils/smbget.c')
-rw-r--r-- | source/utils/smbget.c | 589 |
1 files changed, 0 insertions, 589 deletions
diff --git a/source/utils/smbget.c b/source/utils/smbget.c deleted file mode 100644 index 64630bba8fd..00000000000 --- a/source/utils/smbget.c +++ /dev/null @@ -1,589 +0,0 @@ -/* - smbget: a wget-like utility with support for recursive downloading and - 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 2 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, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include "includes.h" -#include "libsmbclient.h" - -#if _FILE_OFFSET_BITS==64 -#define OFF_T_FORMAT "%lld" -#else -#define OFF_T_FORMAT "%ld" -#endif - -int columns = 0; - -time_t total_start_time = 0; -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 - -const char *username = NULL, *password = NULL, *workgroup = NULL; -int nonprompt = 0, quiet = 0, dots = 0, keep_permissions = 0, verbose = 0, send_stdout = 0; -int blocksize = SMB_DEFAULT_BLOCKSIZE; - -int smb_download_file(const char *base, const char *name, int recursive, int resume, char *outfile); - -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 -} - -void change_columns(int sig) -{ - columns = get_num_cols(); -} - -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, OFF_T_FORMAT"b", s); -} - -void get_auth_data(const char *srv, const char *shr, char *wg, int wglen, char *un, int unlen, char *pw, int pwlen) -{ - static char hasasked = 0; - char *wgtmp, *usertmp; - char tmp[128]; - - if(hasasked) return; - hasasked = 1; - - if(!nonprompt && !username) { - printf("Username for %s at %s [guest] ", shr, srv); - fgets(tmp, sizeof(tmp), stdin); - if(tmp[strlen(tmp)-1] == '\n')tmp[strlen(tmp)-1] = '\0'; - strncpy(un, tmp, unlen-1); - } else if(username) strncpy(un, username, unlen-1); - - if(!nonprompt && !password) { - char *prompt, *pass; - asprintf(&prompt, "Password for %s at %s: ", shr, srv); - pass = getpass(prompt); - free(prompt); - strncpy(pw, pass, pwlen-1); - } else if(password) strncpy(pw, password, pwlen-1); - - if(workgroup)strncpy(wg, workgroup, wglen-1); - - wgtmp = strndup(wg, wglen); - usertmp = strndup(un, unlen); - if(!quiet)printf("Using workgroup %s, %s%s\n", wgtmp, *usertmp?"user ":"guest user", usertmp); - free(wgtmp); free(usertmp); -} - -int 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; - struct stat remotestat; - 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, 1, resume, NULL); - fprintf(stderr, "Can't open directory %s: %s\n", path, strerror(errno)); - return 0; - } - - while(*relname == '/')relname++; - mkdir(relname, 0755); - - tmpname = strdup(name); - - while((dirent = smbc_readdir(dirhandle))) { - char *newname; - if(!strcmp(dirent->name, ".") || !strcmp(dirent->name, ".."))continue; - asprintf(&newname, "%s/%s", tmpname, dirent->name); - switch(dirent->smbc_type) { - case SMBC_DIR: - smb_download_dir(base, newname, resume); - break; - - case SMBC_WORKGROUP: - smb_download_dir("smb://", dirent->name, resume); - break; - - case SMBC_SERVER: - smb_download_dir("smb://", dirent->name, resume); - break; - - case SMBC_FILE: - smb_download_file(base, newname, 1, resume, NULL); - break; - - case SMBC_FILE_SHARE: - smb_download_dir(base, newname, resume); - break; - - case SMBC_PRINTER_SHARE: - if(!quiet)printf("Ignoring printer share %s\n", dirent->name); - break; - - case SMBC_COMMS_SHARE: - if(!quiet)printf("Ignoring comms share %s\n", dirent->name); - break; - - case SMBC_IPC_SHARE: - if(!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; - } - free(newname); - } - free(tmpname); - - if(keep_permissions) { - if(smbc_fstat(dirhandle, &remotestat) < 0) { - fprintf(stderr, "Unable to get stats on %s on remote server\n", path); - smbc_closedir(dirhandle); - return 0; - } - - if(chmod(relname, remotestat.st_mode) < 0) { - fprintf(stderr, "Unable to change mode of local dir %s to %o\n", relname, remotestat.st_mode); - smbc_closedir(dirhandle); - return 0; - } - } - - smbc_closedir(dirhandle); - return 1; -} - -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; -} - -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[20], htotal[20], havg[20]; - 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(columns) { - int required = strlen(name), available = columns - len - strlen("[] "); - if(required > available) asprintf(&filename, "...%s", name + required - available + 3); - else filename = strndup(name, available); - } else filename = strdup(name); - - fprintf(stderr, "\r[%s] %s", filename, status); - - free(filename); free(status); -} - -int smb_download_file(const char *base, const char *name, int recursive, int resume, char *outfile) { - int remotehandle, localhandle; - time_t start_time = time(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; - - 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 0; - } - smb_download_dir(base, name, resume); - return 0; - - case ENOENT: - fprintf(stderr, "%s can't be found on the remote server\n", path); - return 0; - - case ENOMEM: - fprintf(stderr, "Not enough memory\n"); - exit(1); - return 0; - - case ENODEV: - fprintf(stderr, "The share name used in %s does not exist\n", path); - return 0; - - case EACCES: - fprintf(stderr, "You don't have enough permissions to access %s\n", path); - return 0; - - default: - perror("smbc_open"); - return 0; - } - } - - if(smbc_fstat(remotehandle, &remotestat) < 0) { - fprintf(stderr, "Can't stat %s: %s\n", path, strerror(errno)); - return 0; - } - - if(outfile) newpath = outfile; - else if(!name[0]) { - newpath = strrchr(base, '/'); - if(newpath)newpath++; else newpath = base; - } else newpath = name; - - if(newpath[0] == '/')newpath++; - - /* Open local file and, if necessary, resume */ - if(!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 0; - } - - fstat(localhandle, &localstat); - - start_offset = localstat.st_size; - - if(localstat.st_size && localstat.st_size == remotestat.st_size) { - if(verbose)fprintf(stderr, "%s is already downloaded completely.\n", path); - else if(!quiet)fprintf(stderr, "%s\n", path); - smbc_close(remotehandle); - close(localhandle); - return 1; - } - - 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(verbose)printf("Trying to start resume of %s at "OFF_T_FORMAT"\n" - "At the moment "OFF_T_FORMAT" of "OFF_T_FORMAT" bytes have been retrieved\n", newpath, offset_check, - localstat.st_size, 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 "OFF_T_FORMAT" in local file %s\n", offset_check, newpath); - smbc_close(remotehandle); close(localhandle); - return 0; - } - - off2 = smbc_lseek(remotehandle, offset_check, SEEK_SET); - if(off2 < 0) { - fprintf(stderr, "Can't seek to "OFF_T_FORMAT" in remote file %s\n", offset_check, newpath); - smbc_close(remotehandle); close(localhandle); - return 0; - } - - if(off1 != off2) { - fprintf(stderr, "Offset in local and remote files is different (local: "OFF_T_FORMAT", remote: "OFF_T_FORMAT")\n", off1, off2); - return 0; - } - - 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 0; - } - - 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 0; - } - - if(memcmp(checkbuf[0], checkbuf[1], RESUME_CHECK_SIZE) == 0) { - if(verbose)printf("Current local and remote file appear to be the same. Starting download from offset "OFF_T_FORMAT"\n", 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 0; - } - } - } else { - localhandle = STDOUT_FILENO; - start_offset = 0; - offset_download = 0; - offset_check = 0; - } - - readbuf = malloc(blocksize); - - /* Now, download all bytes from offset_download to the end */ - for(curpos = offset_download; curpos < remotestat.st_size; curpos+=blocksize) { - ssize_t bytesread = smbc_read(remotehandle, readbuf, blocksize); - if(bytesread < 0) { - fprintf(stderr, "Can't read %d bytes at offset "OFF_T_FORMAT", file %s\n", blocksize, curpos, path); - smbc_close(remotehandle); - if (localhandle != STDOUT_FILENO) close(localhandle); - free(readbuf); - return 0; - } - - total_bytes += bytesread; - - if(write(localhandle, readbuf, bytesread) < 0) { - fprintf(stderr, "Can't write %d bytes to local file %s at offset "OFF_T_FORMAT"\n", bytesread, path, curpos); - free(readbuf); - smbc_close(remotehandle); - if (localhandle != STDOUT_FILENO) close(localhandle); - return 0; - } - - if(dots)fputc('.', stderr); - else if(!quiet) { - print_progress(newpath, start_time, time(NULL), start_offset, curpos, remotestat.st_size); - } - } - - free(readbuf); - - if(dots){ - fputc('\n', stderr); - printf("%s downloaded\n", path); - } else if(!quiet) { - int i; - fprintf(stderr, "\r%s", path); - if(columns) { - for(i = strlen(path); i < columns; i++) { - fputc(' ', stderr); - } - } - fputc('\n', stderr); - } - - if(keep_permissions && !send_stdout) { - if(fchmod(localhandle, remotestat.st_mode) < 0) { - fprintf(stderr, "Unable to change mode of local file %s to %o\n", path, remotestat.st_mode); - smbc_close(remotehandle); - close(localhandle); - return 0; - } - } - - smbc_close(remotehandle); - if (localhandle != STDOUT_FILENO) close(localhandle); - return 1; -} - -void clean_exit(void) -{ - char bs[100]; - human_readable(total_bytes, bs, sizeof(bs)); - if(!quiet)fprintf(stderr, "Downloaded %s in %lu seconds\n", bs, time(NULL) - total_start_time); - exit(0); -} - -void signal_quit(int v) -{ - clean_exit(); -} - -int readrcfile(const char *name, const struct poptOption long_options[]) -{ - FILE *fd = fopen(name, "r"); - int lineno = 0, i; - char var[101], val[101]; - char found; - int *intdata; char **stringdata; - if(!fd) { - fprintf(stderr, "Can't open RC file %s\n", name); - return 1; - } - - while(!feof(fd)) { - lineno++; - if(fscanf(fd, "%100s %100s\n", var, val) < 2) { - fprintf(stderr, "Can't parse line %d of %s, ignoring.\n", lineno, name); - continue; - } - - found = 0; - - for(i = 0; long_options[i].shortName; i++) { - if(!long_options[i].longName)continue; - if(strcmp(long_options[i].longName, var)) continue; - if(!long_options[i].arg)continue; - - switch(long_options[i].argInfo) { - case POPT_ARG_NONE: - intdata = (int *)long_options[i].arg; - if(!strcmp(val, "on")) *intdata = 1; - else if(!strcmp(val, "off")) *intdata = 0; - else fprintf(stderr, "Illegal value %s for %s at line %d in %s\n", val, var, lineno, name); - break; - case POPT_ARG_INT: - intdata = (int *)long_options[i].arg; - *intdata = atoi(val); - break; - case POPT_ARG_STRING: - stringdata = (char **)long_options[i].arg; - *stringdata = strdup(val); - break; - default: - fprintf(stderr, "Invalid variable %s at line %d in %s\n", var, lineno, name); - break; - } - - found = 1; - } - if(!found) { - fprintf(stderr, "Invalid variable %s at line %d in %s\n", var, lineno, name); - } - } - - fclose(fd); - return 0; -} - -int main(int argc, const char **argv) -{ - int resume = 0, recursive = 0; - int c = 0; - int debuglevel = 0; - const char *file = NULL; - char *rcfile = NULL; - char *outputfile = NULL; - struct poptOption long_options[] = { - {"guest", 'a', POPT_ARG_NONE, NULL, 'a', "Work as user guest" }, - {"resume", 'r', POPT_ARG_NONE, &resume, 0, "Automatically resume aborted files" }, - {"recursive", 'R', POPT_ARG_NONE, &recursive, 0, "Recursively download files" }, - {"username", 'u', POPT_ARG_STRING, &username, 'u', "Username to use" }, - {"password", 'p', POPT_ARG_STRING, &password, 'p', "Password to use" }, - {"workgroup", 'w', POPT_ARG_STRING, &workgroup, 'w', "Workgroup to use (optional)" }, - {"nonprompt", 'n', POPT_ARG_NONE, &nonprompt, 'n', "Don't ask anything (non-interactive)" }, - {"debuglevel", 'd', POPT_ARG_INT, &debuglevel, 'd', "Debuglevel to use" }, - {"outputfile", 'o', POPT_ARG_STRING, &outputfile, 'o', "Write downloaded data to specified file" }, - {"stdout", 'O', POPT_ARG_NONE, &send_stdout, 'O', "Write data to stdout" }, - {"dots", 'D', POPT_ARG_NONE, &dots, 'D', "Show dots as progress indication" }, - {"quiet", 'q', POPT_ARG_NONE, &quiet, 'q', "Be quiet" }, - {"verbose", 'v', POPT_ARG_NONE, &verbose, 'v', "Be verbose" }, - {"keep-permissions", 'P', POPT_ARG_NONE, &keep_permissions, 'P', "Keep permissions" }, - {"blocksize", 'b', POPT_ARG_INT, &blocksize, 'b', "Change number of bytes in a block"}, - {"rcfile", 'f', POPT_ARG_STRING, NULL, 0, "Use specified rc file"}, - POPT_AUTOHELP - POPT_TABLEEND - }; - poptContext pc; - - /* only read rcfile if it exists */ - asprintf(&rcfile, "%s/.smbgetrc", getenv("HOME")); - if(access(rcfile, F_OK) == 0) readrcfile(rcfile, long_options); - free(rcfile); - -#ifdef SIGWINCH - signal(SIGWINCH, change_columns); -#endif - signal(SIGINT, signal_quit); - signal(SIGTERM, signal_quit); - - pc = poptGetContext(argv[0], argc, argv, long_options, 0); - - while((c = poptGetNextOpt(pc)) >= 0) { - switch(c) { - case 'f': - readrcfile(poptGetOptArg(pc), long_options); - break; - case 'a': - username = ""; password = ""; - break; - } - } - - if((send_stdout || outputfile) && recursive) { - fprintf(stderr, "The -o or -O and -R options can not be used together.\n"); - return 1; - } - - if(outputfile && send_stdout) { - fprintf(stderr, "The -o and -O options cannot be used together.\n"); - return 1; - } - - if(smbc_init(get_auth_data, debuglevel) < 0) { - fprintf(stderr, "Unable to initialize libsmbclient\n"); - return 1; - } - - columns = get_num_cols(); - - total_start_time = time(NULL); - - while((file = poptGetArg(pc))) { - if(!recursive) return smb_download_file(file, "", recursive, resume, outputfile); - else return smb_download_dir(file, "", resume); - } - - clean_exit(); - - return 0; -} |