Annotation of src/usr.bin/ssh/sftp-int.c, Revision 1.68
1.1 djm 1: /*
1.68 ! djm 2: * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
1.1 djm 3: *
1.68 ! djm 4: * Permission to use, copy, modify, and distribute this software for any
! 5: * purpose with or without fee is hereby granted, provided that the above
! 6: * copyright notice and this permission notice appear in all copies.
1.1 djm 7: *
1.68 ! djm 8: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 9: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 10: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 11: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 12: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 13: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 14: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 djm 15: */
16:
17: /* XXX: recursive operations */
18:
19: #include "includes.h"
1.68 ! djm 20: RCSID("$OpenBSD: sftp-int.c,v 1.67 2004/01/23 17:57:48 mouring Exp $");
1.27 djm 21:
22: #include <glob.h>
1.1 djm 23:
24: #include "buffer.h"
25: #include "xmalloc.h"
26: #include "log.h"
27: #include "pathnames.h"
28:
29: #include "sftp.h"
30: #include "sftp-common.h"
1.27 djm 31: #include "sftp-glob.h"
1.1 djm 32: #include "sftp-client.h"
33: #include "sftp-int.h"
34:
1.26 djm 35: /* File to read commands from */
36: extern FILE *infile;
37:
1.66 djm 38: /* Are we in batchfile mode? */
39: extern int batchmode;
40:
1.42 djm 41: /* Size of buffer used when copying files */
42: extern size_t copy_buffer_len;
43:
1.43 djm 44: /* Number of concurrent outstanding requests */
45: extern int num_requests;
46:
1.52 fgsch 47: /* This is set to 0 if the progressmeter is not desired. */
48: int showprogress = 1;
49:
1.64 jmc 50: /* Separators for interactive commands */
1.1 djm 51: #define WHITESPACE " \t\r\n"
52:
1.60 mouring 53: /* Define what type of ls view (0 - multi-column) */
54: #define LONG_VIEW 1 /* Full view ala ls -l */
55: #define SHORT_VIEW 2 /* Single row view ala ls -1 */
56:
1.1 djm 57: /* Commands for interactive mode */
58: #define I_CHDIR 1
59: #define I_CHGRP 2
60: #define I_CHMOD 3
61: #define I_CHOWN 4
62: #define I_GET 5
63: #define I_HELP 6
64: #define I_LCHDIR 7
65: #define I_LLS 8
66: #define I_LMKDIR 9
67: #define I_LPWD 10
68: #define I_LS 11
69: #define I_LUMASK 12
70: #define I_MKDIR 13
71: #define I_PUT 14
72: #define I_PWD 15
73: #define I_QUIT 16
74: #define I_RENAME 17
75: #define I_RM 18
76: #define I_RMDIR 19
77: #define I_SHELL 20
1.26 djm 78: #define I_SYMLINK 21
1.28 markus 79: #define I_VERSION 22
1.52 fgsch 80: #define I_PROGRESS 23
1.1 djm 81:
82: struct CMD {
1.6 deraadt 83: const char *c;
1.1 djm 84: const int n;
85: };
86:
1.54 djm 87: static const struct CMD cmds[] = {
1.40 markus 88: { "bye", I_QUIT },
1.15 stevesk 89: { "cd", I_CHDIR },
90: { "chdir", I_CHDIR },
91: { "chgrp", I_CHGRP },
92: { "chmod", I_CHMOD },
93: { "chown", I_CHOWN },
94: { "dir", I_LS },
95: { "exit", I_QUIT },
96: { "get", I_GET },
1.34 djm 97: { "mget", I_GET },
1.15 stevesk 98: { "help", I_HELP },
99: { "lcd", I_LCHDIR },
100: { "lchdir", I_LCHDIR },
101: { "lls", I_LLS },
102: { "lmkdir", I_LMKDIR },
1.26 djm 103: { "ln", I_SYMLINK },
1.15 stevesk 104: { "lpwd", I_LPWD },
105: { "ls", I_LS },
106: { "lumask", I_LUMASK },
107: { "mkdir", I_MKDIR },
1.52 fgsch 108: { "progress", I_PROGRESS },
1.15 stevesk 109: { "put", I_PUT },
1.34 djm 110: { "mput", I_PUT },
1.15 stevesk 111: { "pwd", I_PWD },
112: { "quit", I_QUIT },
113: { "rename", I_RENAME },
114: { "rm", I_RM },
115: { "rmdir", I_RMDIR },
1.26 djm 116: { "symlink", I_SYMLINK },
1.28 markus 117: { "version", I_VERSION },
1.6 deraadt 118: { "!", I_SHELL },
1.7 deraadt 119: { "?", I_HELP },
1.6 deraadt 120: { NULL, -1}
1.1 djm 121: };
122:
1.37 itojun 123: static void
1.1 djm 124: help(void)
125: {
126: printf("Available commands:\n");
1.13 stevesk 127: printf("cd path Change remote directory to 'path'\n");
128: printf("lcd path Change local directory to 'path'\n");
129: printf("chgrp grp path Change group of file 'path' to 'grp'\n");
130: printf("chmod mode path Change permissions of file 'path' to 'mode'\n");
131: printf("chown own path Change owner of file 'path' to 'own'\n");
132: printf("help Display this help text\n");
133: printf("get remote-path [local-path] Download file\n");
134: printf("lls [ls-options [path]] Display local directory listing\n");
1.26 djm 135: printf("ln oldpath newpath Symlink remote file\n");
1.13 stevesk 136: printf("lmkdir path Create local directory\n");
137: printf("lpwd Print local working directory\n");
138: printf("ls [path] Display remote directory listing\n");
139: printf("lumask umask Set local umask to 'umask'\n");
140: printf("mkdir path Create remote directory\n");
1.53 fgsch 141: printf("progress Toggle display of progress meter\n");
1.13 stevesk 142: printf("put local-path [remote-path] Upload file\n");
143: printf("pwd Display remote working directory\n");
144: printf("exit Quit sftp\n");
145: printf("quit Quit sftp\n");
146: printf("rename oldpath newpath Rename remote file\n");
147: printf("rmdir path Remove remote directory\n");
148: printf("rm path Delete remote file\n");
1.26 djm 149: printf("symlink oldpath newpath Symlink remote file\n");
1.28 markus 150: printf("version Show SFTP version\n");
1.1 djm 151: printf("!command Execute 'command' in local shell\n");
152: printf("! Escape to local shell\n");
1.13 stevesk 153: printf("? Synonym for help\n");
1.1 djm 154: }
155:
1.37 itojun 156: static void
1.1 djm 157: local_do_shell(const char *args)
158: {
1.36 markus 159: int status;
1.1 djm 160: char *shell;
161: pid_t pid;
1.3 stevesk 162:
1.1 djm 163: if (!*args)
164: args = NULL;
1.3 stevesk 165:
1.1 djm 166: if ((shell = getenv("SHELL")) == NULL)
167: shell = _PATH_BSHELL;
168:
169: if ((pid = fork()) == -1)
170: fatal("Couldn't fork: %s", strerror(errno));
171:
172: if (pid == 0) {
173: /* XXX: child has pipe fds to ssh subproc open - issue? */
174: if (args) {
175: debug3("Executing %s -c \"%s\"", shell, args);
1.38 deraadt 176: execl(shell, shell, "-c", args, (char *)NULL);
1.1 djm 177: } else {
178: debug3("Executing %s", shell);
1.38 deraadt 179: execl(shell, shell, (char *)NULL);
1.1 djm 180: }
1.3 stevesk 181: fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
1.1 djm 182: strerror(errno));
183: _exit(1);
184: }
1.46 markus 185: while (waitpid(pid, &status, 0) == -1)
186: if (errno != EINTR)
187: fatal("Couldn't wait for child: %s", strerror(errno));
1.1 djm 188: if (!WIFEXITED(status))
189: error("Shell exited abormally");
190: else if (WEXITSTATUS(status))
191: error("Shell exited with status %d", WEXITSTATUS(status));
192: }
193:
1.37 itojun 194: static void
1.1 djm 195: local_do_ls(const char *args)
196: {
197: if (!args || !*args)
1.18 stevesk 198: local_do_shell(_PATH_LS);
1.1 djm 199: else {
1.18 stevesk 200: int len = strlen(_PATH_LS " ") + strlen(args) + 1;
1.16 deraadt 201: char *buf = xmalloc(len);
1.1 djm 202:
203: /* XXX: quoting - rip quoting code from ftp? */
1.18 stevesk 204: snprintf(buf, len, _PATH_LS " %s", args);
1.1 djm 205: local_do_shell(buf);
1.16 deraadt 206: xfree(buf);
1.1 djm 207: }
208: }
209:
1.48 djm 210: /* Strip one path (usually the pwd) from the start of another */
211: static char *
212: path_strip(char *path, char *strip)
213: {
214: size_t len;
215:
216: if (strip == NULL)
217: return (xstrdup(path));
218:
219: len = strlen(strip);
220: if (strip != NULL && strncmp(path, strip, len) == 0) {
221: if (strip[len - 1] != '/' && path[len] == '/')
222: len++;
223: return (xstrdup(path + len));
224: }
225:
226: return (xstrdup(path));
227: }
228:
1.37 itojun 229: static char *
1.29 djm 230: path_append(char *p1, char *p2)
231: {
232: char *ret;
1.31 markus 233: int len = strlen(p1) + strlen(p2) + 2;
1.29 djm 234:
1.31 markus 235: ret = xmalloc(len);
236: strlcpy(ret, p1, len);
1.48 djm 237: if (p1[strlen(p1) - 1] != '/')
1.39 jakob 238: strlcat(ret, "/", len);
1.31 markus 239: strlcat(ret, p2, len);
1.29 djm 240:
241: return(ret);
242: }
243:
1.37 itojun 244: static char *
1.1 djm 245: make_absolute(char *p, char *pwd)
246: {
1.29 djm 247: char *abs;
1.1 djm 248:
249: /* Derelativise */
250: if (p && p[0] != '/') {
1.29 djm 251: abs = path_append(pwd, p);
1.1 djm 252: xfree(p);
1.29 djm 253: return(abs);
254: } else
255: return(p);
256: }
257:
1.37 itojun 258: static int
1.29 djm 259: infer_path(const char *p, char **ifp)
260: {
261: char *cp;
262:
263: cp = strrchr(p, '/');
264: if (cp == NULL) {
265: *ifp = xstrdup(p);
266: return(0);
1.1 djm 267: }
268:
1.29 djm 269: if (!cp[1]) {
270: error("Invalid path");
271: return(-1);
272: }
273:
274: *ifp = xstrdup(cp + 1);
275: return(0);
1.1 djm 276: }
277:
1.37 itojun 278: static int
1.1 djm 279: parse_getput_flags(const char **cpp, int *pflag)
280: {
281: const char *cp = *cpp;
282:
283: /* Check for flags */
284: if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) {
1.20 djm 285: switch (cp[1]) {
1.22 djm 286: case 'p':
1.1 djm 287: case 'P':
288: *pflag = 1;
289: break;
290: default:
1.22 djm 291: error("Invalid flag -%c", cp[1]);
1.1 djm 292: return(-1);
293: }
294: cp += 2;
295: *cpp = cp + strspn(cp, WHITESPACE);
296: }
297:
298: return(0);
299: }
300:
1.37 itojun 301: static int
1.48 djm 302: parse_ls_flags(const char **cpp, int *lflag)
303: {
304: const char *cp = *cpp;
305:
306: /* Check for flags */
307: if (cp++[0] == '-') {
308: for(; strchr(WHITESPACE, *cp) == NULL; cp++) {
309: switch (*cp) {
310: case 'l':
1.60 mouring 311: *lflag = LONG_VIEW;
312: break;
313: case '1':
314: *lflag = SHORT_VIEW;
1.48 djm 315: break;
316: default:
317: error("Invalid flag -%c", *cp);
318: return(-1);
319: }
320: }
321: *cpp = cp + strspn(cp, WHITESPACE);
322: }
323:
324: return(0);
325: }
326:
327: static int
1.1 djm 328: get_pathname(const char **cpp, char **path)
329: {
1.8 provos 330: const char *cp = *cpp, *end;
331: char quot;
1.61 djm 332: int i, j;
1.1 djm 333:
334: cp += strspn(cp, WHITESPACE);
335: if (!*cp) {
336: *cpp = cp;
337: *path = NULL;
1.8 provos 338: return (0);
1.1 djm 339: }
340:
1.61 djm 341: *path = xmalloc(strlen(cp) + 1);
342:
1.1 djm 343: /* Check for quoted filenames */
344: if (*cp == '\"' || *cp == '\'') {
1.8 provos 345: quot = *cp++;
1.30 markus 346:
1.61 djm 347: /* Search for terminating quote, unescape some chars */
348: for (i = j = 0; i <= strlen(cp); i++) {
349: if (cp[i] == quot) { /* Found quote */
1.63 djm 350: i++;
1.61 djm 351: (*path)[j] = '\0';
352: break;
353: }
354: if (cp[i] == '\0') { /* End of string */
355: error("Unterminated quote");
356: goto fail;
357: }
358: if (cp[i] == '\\') { /* Escaped characters */
359: i++;
1.65 djm 360: if (cp[i] != '\'' && cp[i] != '\"' &&
1.61 djm 361: cp[i] != '\\') {
362: error("Bad escaped character '\%c'",
363: cp[i]);
364: goto fail;
365: }
366: }
367: (*path)[j++] = cp[i];
1.1 djm 368: }
1.61 djm 369:
370: if (j == 0) {
1.1 djm 371: error("Empty quotes");
1.8 provos 372: goto fail;
1.1 djm 373: }
1.61 djm 374: *cpp = cp + i + strspn(cp + i, WHITESPACE);
1.8 provos 375: } else {
376: /* Read to end of filename */
377: end = strpbrk(cp, WHITESPACE);
378: if (end == NULL)
379: end = strchr(cp, '\0');
380: *cpp = end + strspn(end, WHITESPACE);
1.61 djm 381:
382: memcpy(*path, cp, end - cp);
383: (*path)[end - cp] = '\0';
1.1 djm 384: }
1.61 djm 385: return (0);
1.8 provos 386:
387: fail:
1.65 djm 388: xfree(*path);
389: *path = NULL;
1.8 provos 390: return (-1);
1.1 djm 391: }
392:
1.37 itojun 393: static int
1.29 djm 394: is_dir(char *path)
395: {
396: struct stat sb;
397:
398: /* XXX: report errors? */
399: if (stat(path, &sb) == -1)
400: return(0);
401:
402: return(sb.st_mode & S_IFDIR);
403: }
404:
1.37 itojun 405: static int
1.55 djm 406: is_reg(char *path)
407: {
408: struct stat sb;
409:
410: if (stat(path, &sb) == -1)
411: fatal("stat %s: %s", path, strerror(errno));
412:
413: return(S_ISREG(sb.st_mode));
414: }
415:
416: static int
1.44 djm 417: remote_is_dir(struct sftp_conn *conn, char *path)
1.1 djm 418: {
1.29 djm 419: Attrib *a;
1.1 djm 420:
1.29 djm 421: /* XXX: report errors? */
1.44 djm 422: if ((a = do_stat(conn, path, 1)) == NULL)
1.29 djm 423: return(0);
424: if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
1.1 djm 425: return(0);
1.29 djm 426: return(a->perm & S_IFDIR);
427: }
428:
1.37 itojun 429: static int
1.44 djm 430: process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
1.29 djm 431: {
432: char *abs_src = NULL;
433: char *abs_dst = NULL;
434: char *tmp;
435: glob_t g;
436: int err = 0;
437: int i;
1.30 markus 438:
1.29 djm 439: abs_src = xstrdup(src);
440: abs_src = make_absolute(abs_src, pwd);
441:
1.30 markus 442: memset(&g, 0, sizeof(g));
1.29 djm 443: debug3("Looking up %s", abs_src);
1.44 djm 444: if (remote_glob(conn, abs_src, 0, NULL, &g)) {
1.29 djm 445: error("File \"%s\" not found.", abs_src);
446: err = -1;
447: goto out;
448: }
449:
1.59 mouring 450: /* If multiple matches, dst must be a directory or unspecified */
451: if (g.gl_matchc > 1 && dst && !is_dir(dst)) {
1.30 markus 452: error("Multiple files match, but \"%s\" is not a directory",
1.29 djm 453: dst);
454: err = -1;
455: goto out;
456: }
1.30 markus 457:
1.41 deraadt 458: for (i = 0; g.gl_pathv[i]; i++) {
1.29 djm 459: if (infer_path(g.gl_pathv[i], &tmp)) {
460: err = -1;
461: goto out;
462: }
1.59 mouring 463:
464: if (g.gl_matchc == 1 && dst) {
465: /* If directory specified, append filename */
466: if (is_dir(dst)) {
467: if (infer_path(g.gl_pathv[0], &tmp)) {
468: err = 1;
469: goto out;
470: }
471: abs_dst = path_append(dst, tmp);
472: xfree(tmp);
473: } else
474: abs_dst = xstrdup(dst);
475: } else if (dst) {
1.29 djm 476: abs_dst = path_append(dst, tmp);
477: xfree(tmp);
478: } else
479: abs_dst = tmp;
480:
481: printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1.44 djm 482: if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
1.29 djm 483: err = -1;
484: xfree(abs_dst);
485: abs_dst = NULL;
1.1 djm 486: }
487:
1.29 djm 488: out:
489: xfree(abs_src);
490: if (abs_dst)
491: xfree(abs_dst);
492: globfree(&g);
493: return(err);
494: }
495:
1.37 itojun 496: static int
1.44 djm 497: process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
1.29 djm 498: {
499: char *tmp_dst = NULL;
500: char *abs_dst = NULL;
501: char *tmp;
502: glob_t g;
503: int err = 0;
504: int i;
505:
506: if (dst) {
507: tmp_dst = xstrdup(dst);
508: tmp_dst = make_absolute(tmp_dst, pwd);
509: }
510:
1.30 markus 511: memset(&g, 0, sizeof(g));
1.29 djm 512: debug3("Looking up %s", src);
513: if (glob(src, 0, NULL, &g)) {
514: error("File \"%s\" not found.", src);
515: err = -1;
516: goto out;
517: }
518:
1.59 mouring 519: /* If multiple matches, dst may be directory or unspecified */
520: if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) {
1.30 markus 521: error("Multiple files match, but \"%s\" is not a directory",
1.29 djm 522: tmp_dst);
523: err = -1;
524: goto out;
525: }
526:
1.41 deraadt 527: for (i = 0; g.gl_pathv[i]; i++) {
1.55 djm 528: if (!is_reg(g.gl_pathv[i])) {
1.65 djm 529: error("skipping non-regular file %s",
1.55 djm 530: g.gl_pathv[i]);
531: continue;
532: }
1.29 djm 533: if (infer_path(g.gl_pathv[i], &tmp)) {
534: err = -1;
535: goto out;
536: }
1.59 mouring 537:
538: if (g.gl_matchc == 1 && tmp_dst) {
539: /* If directory specified, append filename */
540: if (remote_is_dir(conn, tmp_dst)) {
541: if (infer_path(g.gl_pathv[0], &tmp)) {
542: err = 1;
543: goto out;
544: }
545: abs_dst = path_append(tmp_dst, tmp);
546: xfree(tmp);
547: } else
548: abs_dst = xstrdup(tmp_dst);
549:
550: } else if (tmp_dst) {
1.29 djm 551: abs_dst = path_append(tmp_dst, tmp);
552: xfree(tmp);
553: } else
554: abs_dst = make_absolute(tmp, pwd);
555:
556: printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
1.44 djm 557: if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
1.29 djm 558: err = -1;
1.1 djm 559: }
560:
1.29 djm 561: out:
562: if (abs_dst)
563: xfree(abs_dst);
564: if (tmp_dst)
565: xfree(tmp_dst);
1.58 mouring 566: globfree(&g);
1.29 djm 567: return(err);
1.1 djm 568: }
569:
1.37 itojun 570: static int
1.48 djm 571: sdirent_comp(const void *aa, const void *bb)
572: {
573: SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
574: SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
575:
1.50 deraadt 576: return (strcmp(a->filename, b->filename));
1.48 djm 577: }
578:
579: /* sftp ls.1 replacement for directories */
580: static int
581: do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
582: {
1.60 mouring 583: int n, c = 1, colspace = 0, columns = 1;
1.48 djm 584: SFTP_DIRENT **d;
585:
586: if ((n = do_readdir(conn, path, &d)) != 0)
587: return (n);
588:
1.60 mouring 589: if (!(lflag & SHORT_VIEW)) {
590: int m = 0, width = 80;
591: struct winsize ws;
1.67 mouring 592: char *tmp;
1.60 mouring 593:
594: /* Count entries for sort and find longest filename */
595: for (n = 0; d[n] != NULL; n++)
596: m = MAX(m, strlen(d[n]->filename));
597:
1.67 mouring 598: /* Add any subpath that also needs to be counted */
599: tmp = path_strip(path, strip_path);
600: m += strlen(tmp);
601: xfree(tmp);
602:
1.65 djm 603: if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
1.60 mouring 604: width = ws.ws_col;
605:
606: columns = width / (m + 2);
1.62 fgsch 607: columns = MAX(columns, 1);
1.60 mouring 608: colspace = width / columns;
1.67 mouring 609: colspace = MIN(colspace, width);
1.60 mouring 610: }
1.48 djm 611:
612: qsort(d, n, sizeof(*d), sdirent_comp);
613:
614: for (n = 0; d[n] != NULL; n++) {
615: char *tmp, *fname;
1.50 deraadt 616:
1.48 djm 617: tmp = path_append(path, d[n]->filename);
618: fname = path_strip(tmp, strip_path);
619: xfree(tmp);
620:
1.60 mouring 621: if (lflag & LONG_VIEW) {
1.48 djm 622: char *lname;
623: struct stat sb;
624:
625: memset(&sb, 0, sizeof(sb));
626: attrib_to_stat(&d[n]->a, &sb);
627: lname = ls_file(fname, &sb, 1);
628: printf("%s\n", lname);
629: xfree(lname);
630: } else {
1.60 mouring 631: printf("%-*s", colspace, fname);
632: if (c >= columns) {
633: printf("\n");
634: c = 1;
635: } else
636: c++;
1.48 djm 637: }
1.50 deraadt 638:
1.48 djm 639: xfree(fname);
640: }
641:
1.60 mouring 642: if (!(lflag & LONG_VIEW) && (c != 1))
643: printf("\n");
644:
1.48 djm 645: free_sftp_dirents(d);
646: return (0);
647: }
648:
649: /* sftp ls.1 replacement which handles path globs */
650: static int
1.50 deraadt 651: do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
1.48 djm 652: int lflag)
653: {
654: glob_t g;
1.60 mouring 655: int i, c = 1, colspace = 0, columns = 1;
1.48 djm 656: Attrib *a;
657:
658: memset(&g, 0, sizeof(g));
659:
1.50 deraadt 660: if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
1.48 djm 661: NULL, &g)) {
662: error("Can't ls: \"%s\" not found", path);
663: return (-1);
664: }
665:
666: /*
1.50 deraadt 667: * If the glob returns a single match, which is the same as the
1.48 djm 668: * input glob, and it is a directory, then just list its contents
669: */
1.50 deraadt 670: if (g.gl_pathc == 1 &&
1.48 djm 671: strncmp(path, g.gl_pathv[0], strlen(g.gl_pathv[0]) - 1) == 0) {
672: if ((a = do_lstat(conn, path, 1)) == NULL) {
673: globfree(&g);
1.65 djm 674: return (-1);
1.48 djm 675: }
1.50 deraadt 676: if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
1.48 djm 677: S_ISDIR(a->perm)) {
678: globfree(&g);
679: return (do_ls_dir(conn, path, strip_path, lflag));
680: }
681: }
682:
1.60 mouring 683: if (!(lflag & SHORT_VIEW)) {
684: int m = 0, width = 80;
1.65 djm 685: struct winsize ws;
1.60 mouring 686:
687: /* Count entries for sort and find longest filename */
1.65 djm 688: for (i = 0; g.gl_pathv[i]; i++)
1.60 mouring 689: m = MAX(m, strlen(g.gl_pathv[i]));
690:
691: if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
692: width = ws.ws_col;
693:
694: columns = width / (m + 2);
1.62 fgsch 695: columns = MAX(columns, 1);
1.60 mouring 696: colspace = width / columns;
697: }
698:
1.48 djm 699: for (i = 0; g.gl_pathv[i]; i++) {
1.60 mouring 700: char *fname;
1.48 djm 701:
702: fname = path_strip(g.gl_pathv[i], strip_path);
703:
1.60 mouring 704: if (lflag & LONG_VIEW) {
705: char *lname;
706: struct stat sb;
707:
1.48 djm 708: /*
709: * XXX: this is slow - 1 roundtrip per path
1.50 deraadt 710: * A solution to this is to fork glob() and
711: * build a sftp specific version which keeps the
1.48 djm 712: * attribs (which currently get thrown away)
713: * that the server returns as well as the filenames.
714: */
715: memset(&sb, 0, sizeof(sb));
716: a = do_lstat(conn, g.gl_pathv[i], 1);
717: if (a != NULL)
718: attrib_to_stat(a, &sb);
719: lname = ls_file(fname, &sb, 1);
720: printf("%s\n", lname);
721: xfree(lname);
722: } else {
1.60 mouring 723: printf("%-*s", colspace, fname);
724: if (c >= columns) {
725: printf("\n");
726: c = 1;
727: } else
728: c++;
1.48 djm 729: }
730: xfree(fname);
731: }
1.60 mouring 732:
733: if (!(lflag & LONG_VIEW) && (c != 1))
734: printf("\n");
1.48 djm 735:
736: if (g.gl_pathc)
737: globfree(&g);
738:
739: return (0);
740: }
741:
742: static int
1.51 djm 743: parse_args(const char **cpp, int *pflag, int *lflag, int *iflag,
1.48 djm 744: unsigned long *n_arg, char **path1, char **path2)
1.1 djm 745: {
746: const char *cmd, *cp = *cpp;
1.21 stevesk 747: char *cp2;
1.4 markus 748: int base = 0;
1.21 stevesk 749: long l;
1.1 djm 750: int i, cmdnum;
751:
752: /* Skip leading whitespace */
753: cp = cp + strspn(cp, WHITESPACE);
754:
1.51 djm 755: /* Ignore blank lines and lines which begin with comment '#' char */
756: if (*cp == '\0' || *cp == '#')
757: return (0);
1.1 djm 758:
1.51 djm 759: /* Check for leading '-' (disable error processing) */
760: *iflag = 0;
761: if (*cp == '-') {
762: *iflag = 1;
763: cp++;
764: }
1.65 djm 765:
1.1 djm 766: /* Figure out which command we have */
1.41 deraadt 767: for (i = 0; cmds[i].c; i++) {
1.1 djm 768: int cmdlen = strlen(cmds[i].c);
769:
770: /* Check for command followed by whitespace */
771: if (!strncasecmp(cp, cmds[i].c, cmdlen) &&
772: strchr(WHITESPACE, cp[cmdlen])) {
773: cp += cmdlen;
774: cp = cp + strspn(cp, WHITESPACE);
775: break;
776: }
777: }
778: cmdnum = cmds[i].n;
779: cmd = cmds[i].c;
780:
781: /* Special case */
782: if (*cp == '!') {
783: cp++;
784: cmdnum = I_SHELL;
785: } else if (cmdnum == -1) {
786: error("Invalid command.");
1.51 djm 787: return (-1);
1.1 djm 788: }
789:
790: /* Get arguments and parse flags */
1.48 djm 791: *lflag = *pflag = *n_arg = 0;
1.1 djm 792: *path1 = *path2 = NULL;
793: switch (cmdnum) {
794: case I_GET:
795: case I_PUT:
796: if (parse_getput_flags(&cp, pflag))
797: return(-1);
798: /* Get first pathname (mandatory) */
799: if (get_pathname(&cp, path1))
800: return(-1);
801: if (*path1 == NULL) {
802: error("You must specify at least one path after a "
803: "%s command.", cmd);
804: return(-1);
805: }
806: /* Try to get second pathname (optional) */
807: if (get_pathname(&cp, path2))
808: return(-1);
809: break;
810: case I_RENAME:
1.26 djm 811: case I_SYMLINK:
1.1 djm 812: if (get_pathname(&cp, path1))
813: return(-1);
814: if (get_pathname(&cp, path2))
815: return(-1);
816: if (!*path1 || !*path2) {
817: error("You must specify two paths after a %s "
818: "command.", cmd);
819: return(-1);
820: }
821: break;
822: case I_RM:
823: case I_MKDIR:
824: case I_RMDIR:
825: case I_CHDIR:
826: case I_LCHDIR:
827: case I_LMKDIR:
828: /* Get pathname (mandatory) */
829: if (get_pathname(&cp, path1))
830: return(-1);
831: if (*path1 == NULL) {
1.3 stevesk 832: error("You must specify a path after a %s command.",
1.1 djm 833: cmd);
834: return(-1);
835: }
836: break;
837: case I_LS:
1.48 djm 838: if (parse_ls_flags(&cp, lflag))
839: return(-1);
1.1 djm 840: /* Path is optional */
841: if (get_pathname(&cp, path1))
842: return(-1);
843: break;
844: case I_LLS:
845: case I_SHELL:
846: /* Uses the rest of the line */
847: break;
848: case I_LUMASK:
1.21 stevesk 849: base = 8;
1.1 djm 850: case I_CHMOD:
1.4 markus 851: base = 8;
1.1 djm 852: case I_CHOWN:
853: case I_CHGRP:
854: /* Get numeric arg (mandatory) */
1.21 stevesk 855: l = strtol(cp, &cp2, base);
856: if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) &&
857: errno == ERANGE) || l < 0) {
1.1 djm 858: error("You must supply a numeric argument "
859: "to the %s command.", cmd);
860: return(-1);
861: }
1.21 stevesk 862: cp = cp2;
863: *n_arg = l;
864: if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp))
865: break;
866: if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) {
1.1 djm 867: error("You must supply a numeric argument "
868: "to the %s command.", cmd);
869: return(-1);
870: }
871: cp += strspn(cp, WHITESPACE);
872:
873: /* Get pathname (mandatory) */
874: if (get_pathname(&cp, path1))
875: return(-1);
876: if (*path1 == NULL) {
1.3 stevesk 877: error("You must specify a path after a %s command.",
1.1 djm 878: cmd);
879: return(-1);
880: }
881: break;
882: case I_QUIT:
883: case I_PWD:
884: case I_LPWD:
885: case I_HELP:
1.28 markus 886: case I_VERSION:
1.52 fgsch 887: case I_PROGRESS:
1.1 djm 888: break;
889: default:
890: fatal("Command not implemented");
891: }
892:
893: *cpp = cp;
894: return(cmdnum);
895: }
896:
1.37 itojun 897: static int
1.51 djm 898: parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
899: int err_abort)
1.1 djm 900: {
1.8 provos 901: char *path1, *path2, *tmp;
1.51 djm 902: int pflag, lflag, iflag, cmdnum, i;
1.1 djm 903: unsigned long n_arg;
904: Attrib a, *aa;
1.23 deraadt 905: char path_buf[MAXPATHLEN];
1.25 deraadt 906: int err = 0;
1.27 djm 907: glob_t g;
1.1 djm 908:
909: path1 = path2 = NULL;
1.51 djm 910: cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg,
1.48 djm 911: &path1, &path2);
1.1 djm 912:
1.51 djm 913: if (iflag != 0)
914: err_abort = 0;
915:
1.29 djm 916: memset(&g, 0, sizeof(g));
917:
1.1 djm 918: /* Perform command */
919: switch (cmdnum) {
1.51 djm 920: case 0:
921: /* Blank line */
922: break;
1.1 djm 923: case -1:
1.51 djm 924: /* Unrecognized command */
925: err = -1;
1.1 djm 926: break;
927: case I_GET:
1.44 djm 928: err = process_get(conn, path1, path2, *pwd, pflag);
1.1 djm 929: break;
930: case I_PUT:
1.44 djm 931: err = process_put(conn, path1, path2, *pwd, pflag);
1.33 markus 932: break;
933: case I_RENAME:
1.1 djm 934: path1 = make_absolute(path1, *pwd);
935: path2 = make_absolute(path2, *pwd);
1.44 djm 936: err = do_rename(conn, path1, path2);
1.1 djm 937: break;
1.26 djm 938: case I_SYMLINK:
1.44 djm 939: path2 = make_absolute(path2, *pwd);
940: err = do_symlink(conn, path1, path2);
1.26 djm 941: break;
1.1 djm 942: case I_RM:
943: path1 = make_absolute(path1, *pwd);
1.44 djm 944: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.41 deraadt 945: for (i = 0; g.gl_pathv[i]; i++) {
1.27 djm 946: printf("Removing %s\n", g.gl_pathv[i]);
1.51 djm 947: err = do_rm(conn, g.gl_pathv[i]);
948: if (err != 0 && err_abort)
949: break;
1.27 djm 950: }
1.1 djm 951: break;
952: case I_MKDIR:
953: path1 = make_absolute(path1, *pwd);
954: attrib_clear(&a);
955: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
956: a.perm = 0777;
1.44 djm 957: err = do_mkdir(conn, path1, &a);
1.1 djm 958: break;
959: case I_RMDIR:
960: path1 = make_absolute(path1, *pwd);
1.44 djm 961: err = do_rmdir(conn, path1);
1.1 djm 962: break;
963: case I_CHDIR:
964: path1 = make_absolute(path1, *pwd);
1.44 djm 965: if ((tmp = do_realpath(conn, path1)) == NULL) {
1.25 deraadt 966: err = 1;
1.11 markus 967: break;
1.25 deraadt 968: }
1.44 djm 969: if ((aa = do_stat(conn, tmp, 0)) == NULL) {
1.11 markus 970: xfree(tmp);
1.25 deraadt 971: err = 1;
1.11 markus 972: break;
973: }
1.9 djm 974: if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
975: error("Can't change directory: Can't check target");
976: xfree(tmp);
1.25 deraadt 977: err = 1;
1.9 djm 978: break;
979: }
980: if (!S_ISDIR(aa->perm)) {
981: error("Can't change directory: \"%s\" is not "
982: "a directory", tmp);
983: xfree(tmp);
1.25 deraadt 984: err = 1;
1.9 djm 985: break;
986: }
1.11 markus 987: xfree(*pwd);
988: *pwd = tmp;
1.1 djm 989: break;
990: case I_LS:
1.12 djm 991: if (!path1) {
1.48 djm 992: do_globbed_ls(conn, *pwd, *pwd, lflag);
1.12 djm 993: break;
994: }
1.50 deraadt 995:
1.48 djm 996: /* Strip pwd off beginning of non-absolute paths */
997: tmp = NULL;
998: if (*path1 != '/')
999: tmp = *pwd;
1000:
1.1 djm 1001: path1 = make_absolute(path1, *pwd);
1.51 djm 1002: err = do_globbed_ls(conn, path1, tmp, lflag);
1.1 djm 1003: break;
1004: case I_LCHDIR:
1.25 deraadt 1005: if (chdir(path1) == -1) {
1.1 djm 1006: error("Couldn't change local directory to "
1007: "\"%s\": %s", path1, strerror(errno));
1.25 deraadt 1008: err = 1;
1009: }
1.1 djm 1010: break;
1011: case I_LMKDIR:
1.25 deraadt 1012: if (mkdir(path1, 0777) == -1) {
1.17 stevesk 1013: error("Couldn't create local directory "
1.1 djm 1014: "\"%s\": %s", path1, strerror(errno));
1.25 deraadt 1015: err = 1;
1016: }
1.1 djm 1017: break;
1018: case I_LLS:
1019: local_do_ls(cmd);
1020: break;
1021: case I_SHELL:
1022: local_do_shell(cmd);
1023: break;
1024: case I_LUMASK:
1025: umask(n_arg);
1.21 stevesk 1026: printf("Local umask: %03lo\n", n_arg);
1.1 djm 1027: break;
1028: case I_CHMOD:
1029: path1 = make_absolute(path1, *pwd);
1030: attrib_clear(&a);
1031: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1032: a.perm = n_arg;
1.44 djm 1033: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.41 deraadt 1034: for (i = 0; g.gl_pathv[i]; i++) {
1.27 djm 1035: printf("Changing mode on %s\n", g.gl_pathv[i]);
1.51 djm 1036: err = do_setstat(conn, g.gl_pathv[i], &a);
1037: if (err != 0 && err_abort)
1038: break;
1.27 djm 1039: }
1.5 stevesk 1040: break;
1.1 djm 1041: case I_CHOWN:
1.51 djm 1042: case I_CHGRP:
1.1 djm 1043: path1 = make_absolute(path1, *pwd);
1.44 djm 1044: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.41 deraadt 1045: for (i = 0; g.gl_pathv[i]; i++) {
1.51 djm 1046: if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
1047: if (err != 0 && err_abort)
1048: break;
1049: else
1050: continue;
1051: }
1.27 djm 1052: if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
1053: error("Can't get current ownership of "
1054: "remote file \"%s\"", g.gl_pathv[i]);
1.51 djm 1055: if (err != 0 && err_abort)
1056: break;
1057: else
1058: continue;
1.27 djm 1059: }
1060: aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
1.51 djm 1061: if (cmdnum == I_CHOWN) {
1062: printf("Changing owner on %s\n", g.gl_pathv[i]);
1063: aa->uid = n_arg;
1064: } else {
1065: printf("Changing group on %s\n", g.gl_pathv[i]);
1066: aa->gid = n_arg;
1.27 djm 1067: }
1.51 djm 1068: err = do_setstat(conn, g.gl_pathv[i], aa);
1069: if (err != 0 && err_abort)
1070: break;
1.1 djm 1071: }
1072: break;
1073: case I_PWD:
1074: printf("Remote working directory: %s\n", *pwd);
1075: break;
1076: case I_LPWD:
1.51 djm 1077: if (!getcwd(path_buf, sizeof(path_buf))) {
1078: error("Couldn't get local cwd: %s", strerror(errno));
1079: err = -1;
1080: break;
1081: }
1082: printf("Local working directory: %s\n", path_buf);
1.1 djm 1083: break;
1084: case I_QUIT:
1.51 djm 1085: /* Processed below */
1086: break;
1.1 djm 1087: case I_HELP:
1088: help();
1.28 markus 1089: break;
1090: case I_VERSION:
1.47 deraadt 1091: printf("SFTP protocol version %u\n", sftp_proto_version(conn));
1.52 fgsch 1092: break;
1093: case I_PROGRESS:
1094: showprogress = !showprogress;
1095: if (showprogress)
1096: printf("Progress meter enabled\n");
1097: else
1098: printf("Progress meter disabled\n");
1.1 djm 1099: break;
1100: default:
1101: fatal("%d is not implemented", cmdnum);
1102: }
1103:
1.29 djm 1104: if (g.gl_pathc)
1105: globfree(&g);
1.1 djm 1106: if (path1)
1107: xfree(path1);
1108: if (path2)
1109: xfree(path2);
1.25 deraadt 1110:
1.51 djm 1111: /* If an unignored error occurs in batch mode we should abort. */
1112: if (err_abort && err != 0)
1113: return (-1);
1114: else if (cmdnum == I_QUIT)
1115: return (1);
1.25 deraadt 1116:
1.51 djm 1117: return (0);
1.1 djm 1118: }
1119:
1.51 djm 1120: int
1.35 mouring 1121: interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
1.1 djm 1122: {
1123: char *pwd;
1.35 mouring 1124: char *dir = NULL;
1.1 djm 1125: char cmd[2048];
1.44 djm 1126: struct sftp_conn *conn;
1.51 djm 1127: int err;
1.26 djm 1128:
1.44 djm 1129: conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
1130: if (conn == NULL)
1.26 djm 1131: fatal("Couldn't initialise connection to server");
1.1 djm 1132:
1.44 djm 1133: pwd = do_realpath(conn, ".");
1.1 djm 1134: if (pwd == NULL)
1135: fatal("Need cwd");
1136:
1.35 mouring 1137: if (file1 != NULL) {
1138: dir = xstrdup(file1);
1139: dir = make_absolute(dir, pwd);
1140:
1.44 djm 1141: if (remote_is_dir(conn, dir) && file2 == NULL) {
1.35 mouring 1142: printf("Changing to: %s\n", dir);
1143: snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
1.51 djm 1144: if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0)
1145: return (-1);
1.35 mouring 1146: } else {
1147: if (file2 == NULL)
1148: snprintf(cmd, sizeof cmd, "get %s", dir);
1149: else
1150: snprintf(cmd, sizeof cmd, "get %s %s", dir,
1151: file2);
1152:
1.51 djm 1153: err = parse_dispatch_command(conn, cmd, &pwd, 1);
1.45 mpech 1154: xfree(dir);
1.57 markus 1155: xfree(pwd);
1.51 djm 1156: return (err);
1.35 mouring 1157: }
1.45 mpech 1158: xfree(dir);
1.35 mouring 1159: }
1.51 djm 1160:
1.14 stevesk 1161: setvbuf(stdout, NULL, _IOLBF, 0);
1.25 deraadt 1162: setvbuf(infile, NULL, _IOLBF, 0);
1.1 djm 1163:
1.51 djm 1164: err = 0;
1.41 deraadt 1165: for (;;) {
1.1 djm 1166: char *cp;
1167:
1168: printf("sftp> ");
1169:
1170: /* XXX: use libedit */
1.25 deraadt 1171: if (fgets(cmd, sizeof(cmd), infile) == NULL) {
1.1 djm 1172: printf("\n");
1173: break;
1.66 djm 1174: }
1175:
1176: if (batchmode) /* Echo command */
1.25 deraadt 1177: printf("%s", cmd);
1178:
1.1 djm 1179: cp = strrchr(cmd, '\n');
1180: if (cp)
1181: *cp = '\0';
1.25 deraadt 1182:
1.66 djm 1183: err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
1.51 djm 1184: if (err != 0)
1.1 djm 1185: break;
1186: }
1187: xfree(pwd);
1.51 djm 1188:
1189: /* err == 1 signifies normal "quit" exit */
1190: return (err >= 0 ? 0 : -1);
1.1 djm 1191: }
1.51 djm 1192:
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