Annotation of src/usr.bin/ssh/sftp-int.c, Revision 1.32
1.1 djm 1: /*
2: * Copyright (c) 2001 Damien Miller. All rights reserved.
3: *
4: * Redistribution and use in source and binary forms, with or without
5: * modification, are permitted provided that the following conditions
6: * are met:
7: * 1. Redistributions of source code must retain the above copyright
8: * notice, this list of conditions and the following disclaimer.
9: * 2. Redistributions in binary form must reproduce the above copyright
10: * notice, this list of conditions and the following disclaimer in the
11: * documentation and/or other materials provided with the distribution.
12: *
13: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23: */
24:
1.12 djm 25: /* XXX: globbed ls */
1.1 djm 26: /* XXX: recursive operations */
27:
28: #include "includes.h"
1.32 ! markus 29: RCSID("$OpenBSD: sftp-int.c,v 1.31 2001/03/16 13:44:24 markus Exp $");
1.27 djm 30:
31: #include <glob.h>
1.1 djm 32:
33: #include "buffer.h"
34: #include "xmalloc.h"
35: #include "log.h"
36: #include "pathnames.h"
37:
38: #include "sftp.h"
39: #include "sftp-common.h"
1.27 djm 40: #include "sftp-glob.h"
1.1 djm 41: #include "sftp-client.h"
42: #include "sftp-int.h"
43:
1.26 djm 44: /* File to read commands from */
45: extern FILE *infile;
46:
47: /* Version of server we are speaking to */
48: int version;
1.25 deraadt 49:
1.1 djm 50: /* Seperators for interactive commands */
51: #define WHITESPACE " \t\r\n"
52:
53: /* Commands for interactive mode */
54: #define I_CHDIR 1
55: #define I_CHGRP 2
56: #define I_CHMOD 3
57: #define I_CHOWN 4
58: #define I_GET 5
59: #define I_HELP 6
60: #define I_LCHDIR 7
61: #define I_LLS 8
62: #define I_LMKDIR 9
63: #define I_LPWD 10
64: #define I_LS 11
65: #define I_LUMASK 12
66: #define I_MKDIR 13
67: #define I_PUT 14
68: #define I_PWD 15
69: #define I_QUIT 16
70: #define I_RENAME 17
71: #define I_RM 18
72: #define I_RMDIR 19
73: #define I_SHELL 20
1.26 djm 74: #define I_SYMLINK 21
1.28 markus 75: #define I_VERSION 22
1.1 djm 76:
77: struct CMD {
1.6 deraadt 78: const char *c;
1.1 djm 79: const int n;
80: };
81:
82: const struct CMD cmds[] = {
1.15 stevesk 83: { "cd", I_CHDIR },
84: { "chdir", I_CHDIR },
85: { "chgrp", I_CHGRP },
86: { "chmod", I_CHMOD },
87: { "chown", I_CHOWN },
88: { "dir", I_LS },
89: { "exit", I_QUIT },
90: { "get", I_GET },
91: { "help", I_HELP },
92: { "lcd", I_LCHDIR },
93: { "lchdir", I_LCHDIR },
94: { "lls", I_LLS },
95: { "lmkdir", I_LMKDIR },
1.26 djm 96: { "ln", I_SYMLINK },
1.15 stevesk 97: { "lpwd", I_LPWD },
98: { "ls", I_LS },
99: { "lumask", I_LUMASK },
100: { "mkdir", I_MKDIR },
101: { "put", I_PUT },
102: { "pwd", I_PWD },
103: { "quit", I_QUIT },
104: { "rename", I_RENAME },
105: { "rm", I_RM },
106: { "rmdir", I_RMDIR },
1.26 djm 107: { "symlink", I_SYMLINK },
1.28 markus 108: { "version", I_VERSION },
1.6 deraadt 109: { "!", I_SHELL },
1.7 deraadt 110: { "?", I_HELP },
1.6 deraadt 111: { NULL, -1}
1.1 djm 112: };
113:
114: void
115: help(void)
116: {
117: printf("Available commands:\n");
1.13 stevesk 118: printf("cd path Change remote directory to 'path'\n");
119: printf("lcd path Change local directory to 'path'\n");
120: printf("chgrp grp path Change group of file 'path' to 'grp'\n");
121: printf("chmod mode path Change permissions of file 'path' to 'mode'\n");
122: printf("chown own path Change owner of file 'path' to 'own'\n");
123: printf("help Display this help text\n");
124: printf("get remote-path [local-path] Download file\n");
125: printf("lls [ls-options [path]] Display local directory listing\n");
1.26 djm 126: printf("ln oldpath newpath Symlink remote file\n");
1.13 stevesk 127: printf("lmkdir path Create local directory\n");
128: printf("lpwd Print local working directory\n");
129: printf("ls [path] Display remote directory listing\n");
130: printf("lumask umask Set local umask to 'umask'\n");
131: printf("mkdir path Create remote directory\n");
132: printf("put local-path [remote-path] Upload file\n");
133: printf("pwd Display remote working directory\n");
134: printf("exit Quit sftp\n");
135: printf("quit Quit sftp\n");
136: printf("rename oldpath newpath Rename remote file\n");
137: printf("rmdir path Remove remote directory\n");
138: printf("rm path Delete remote file\n");
1.26 djm 139: printf("symlink oldpath newpath Symlink remote file\n");
1.28 markus 140: printf("version Show SFTP version\n");
1.1 djm 141: printf("!command Execute 'command' in local shell\n");
142: printf("! Escape to local shell\n");
1.13 stevesk 143: printf("? Synonym for help\n");
1.1 djm 144: }
145:
146: void
147: local_do_shell(const char *args)
148: {
149: int ret, status;
150: char *shell;
151: pid_t pid;
1.3 stevesk 152:
1.1 djm 153: if (!*args)
154: args = NULL;
1.3 stevesk 155:
1.1 djm 156: if ((shell = getenv("SHELL")) == NULL)
157: shell = _PATH_BSHELL;
158:
159: if ((pid = fork()) == -1)
160: fatal("Couldn't fork: %s", strerror(errno));
161:
162: if (pid == 0) {
163: /* XXX: child has pipe fds to ssh subproc open - issue? */
164: if (args) {
165: debug3("Executing %s -c \"%s\"", shell, args);
166: ret = execl(shell, shell, "-c", args, NULL);
167: } else {
168: debug3("Executing %s", shell);
169: ret = execl(shell, shell, NULL);
170: }
1.3 stevesk 171: fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
1.1 djm 172: strerror(errno));
173: _exit(1);
174: }
175: if (waitpid(pid, &status, 0) == -1)
176: fatal("Couldn't wait for child: %s", strerror(errno));
177: if (!WIFEXITED(status))
178: error("Shell exited abormally");
179: else if (WEXITSTATUS(status))
180: error("Shell exited with status %d", WEXITSTATUS(status));
181: }
182:
1.3 stevesk 183: void
1.1 djm 184: local_do_ls(const char *args)
185: {
186: if (!args || !*args)
1.18 stevesk 187: local_do_shell(_PATH_LS);
1.1 djm 188: else {
1.18 stevesk 189: int len = strlen(_PATH_LS " ") + strlen(args) + 1;
1.16 deraadt 190: char *buf = xmalloc(len);
1.1 djm 191:
192: /* XXX: quoting - rip quoting code from ftp? */
1.18 stevesk 193: snprintf(buf, len, _PATH_LS " %s", args);
1.1 djm 194: local_do_shell(buf);
1.16 deraadt 195: xfree(buf);
1.1 djm 196: }
197: }
198:
199: char *
1.29 djm 200: path_append(char *p1, char *p2)
201: {
202: char *ret;
1.31 markus 203: int len = strlen(p1) + strlen(p2) + 2;
1.29 djm 204:
1.31 markus 205: ret = xmalloc(len);
206: strlcpy(ret, p1, len);
207: strlcat(ret, "/", len);
208: strlcat(ret, p2, len);
1.29 djm 209:
210: return(ret);
211: }
212:
213: char *
1.1 djm 214: make_absolute(char *p, char *pwd)
215: {
1.29 djm 216: char *abs;
1.1 djm 217:
218: /* Derelativise */
219: if (p && p[0] != '/') {
1.29 djm 220: abs = path_append(pwd, p);
1.1 djm 221: xfree(p);
1.29 djm 222: return(abs);
223: } else
224: return(p);
225: }
226:
227: int
228: infer_path(const char *p, char **ifp)
229: {
230: char *cp;
231:
232: cp = strrchr(p, '/');
233: if (cp == NULL) {
234: *ifp = xstrdup(p);
235: return(0);
1.1 djm 236: }
237:
1.29 djm 238: if (!cp[1]) {
239: error("Invalid path");
240: return(-1);
241: }
242:
243: *ifp = xstrdup(cp + 1);
244: return(0);
1.1 djm 245: }
246:
247: int
248: parse_getput_flags(const char **cpp, int *pflag)
249: {
250: const char *cp = *cpp;
251:
252: /* Check for flags */
253: if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) {
1.20 djm 254: switch (cp[1]) {
1.22 djm 255: case 'p':
1.1 djm 256: case 'P':
257: *pflag = 1;
258: break;
259: default:
1.22 djm 260: error("Invalid flag -%c", cp[1]);
1.1 djm 261: return(-1);
262: }
263: cp += 2;
264: *cpp = cp + strspn(cp, WHITESPACE);
265: }
266:
267: return(0);
268: }
269:
270: int
271: get_pathname(const char **cpp, char **path)
272: {
1.8 provos 273: const char *cp = *cpp, *end;
274: char quot;
1.1 djm 275: int i;
276:
277: cp += strspn(cp, WHITESPACE);
278: if (!*cp) {
279: *cpp = cp;
280: *path = NULL;
1.8 provos 281: return (0);
1.1 djm 282: }
283:
284: /* Check for quoted filenames */
285: if (*cp == '\"' || *cp == '\'') {
1.8 provos 286: quot = *cp++;
1.30 markus 287:
1.8 provos 288: end = strchr(cp, quot);
289: if (end == NULL) {
1.1 djm 290: error("Unterminated quote");
1.8 provos 291: goto fail;
1.1 djm 292: }
1.8 provos 293: if (cp == end) {
1.1 djm 294: error("Empty quotes");
1.8 provos 295: goto fail;
1.1 djm 296: }
1.8 provos 297: *cpp = end + 1 + strspn(end + 1, WHITESPACE);
298: } else {
299: /* Read to end of filename */
300: end = strpbrk(cp, WHITESPACE);
301: if (end == NULL)
302: end = strchr(cp, '\0');
303: *cpp = end + strspn(end, WHITESPACE);
1.1 djm 304: }
305:
1.8 provos 306: i = end - cp;
1.1 djm 307:
308: *path = xmalloc(i + 1);
309: memcpy(*path, cp, i);
310: (*path)[i] = '\0';
311: return(0);
1.8 provos 312:
313: fail:
314: *path = NULL;
315: return (-1);
1.1 djm 316: }
317:
318: int
1.29 djm 319: is_dir(char *path)
320: {
321: struct stat sb;
322:
323: /* XXX: report errors? */
324: if (stat(path, &sb) == -1)
325: return(0);
326:
327: return(sb.st_mode & S_IFDIR);
328: }
329:
330: int
331: remote_is_dir(int in, int out, char *path)
1.1 djm 332: {
1.29 djm 333: Attrib *a;
1.1 djm 334:
1.29 djm 335: /* XXX: report errors? */
336: if ((a = do_stat(in, out, path, 1)) == NULL)
337: return(0);
338: if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
1.1 djm 339: return(0);
1.29 djm 340: return(a->perm & S_IFDIR);
341: }
342:
343: int
344: process_get(int in, int out, char *src, char *dst, char *pwd, int pflag)
345: {
346: char *abs_src = NULL;
347: char *abs_dst = NULL;
348: char *tmp;
349: glob_t g;
350: int err = 0;
351: int i;
1.30 markus 352:
1.29 djm 353: abs_src = xstrdup(src);
354: abs_src = make_absolute(abs_src, pwd);
355:
1.30 markus 356: memset(&g, 0, sizeof(g));
1.29 djm 357: debug3("Looking up %s", abs_src);
358: if (remote_glob(in, out, abs_src, 0, NULL, &g)) {
359: error("File \"%s\" not found.", abs_src);
360: err = -1;
361: goto out;
362: }
363:
364: /* Only one match, dst may be file, directory or unspecified */
365: if (g.gl_pathv[0] && g.gl_matchc == 1) {
366: if (dst) {
367: /* If directory specified, append filename */
368: if (is_dir(dst)) {
369: if (infer_path(g.gl_pathv[0], &tmp)) {
370: err = 1;
371: goto out;
372: }
373: abs_dst = path_append(dst, tmp);
374: xfree(tmp);
375: } else
376: abs_dst = xstrdup(dst);
377: } else if (infer_path(g.gl_pathv[0], &abs_dst)) {
378: err = -1;
379: goto out;
380: }
381: printf("Fetching %s to %s\n", g.gl_pathv[0], abs_dst);
382: err = do_download(in, out, g.gl_pathv[0], abs_dst, pflag);
383: goto out;
384: }
385:
386: /* Multiple matches, dst may be directory or unspecified */
387: if (dst && !is_dir(dst)) {
1.30 markus 388: error("Multiple files match, but \"%s\" is not a directory",
1.29 djm 389: dst);
390: err = -1;
391: goto out;
392: }
1.30 markus 393:
1.29 djm 394: for(i = 0; g.gl_pathv[i]; i++) {
395: if (infer_path(g.gl_pathv[i], &tmp)) {
396: err = -1;
397: goto out;
398: }
399: if (dst) {
400: abs_dst = path_append(dst, tmp);
401: xfree(tmp);
402: } else
403: abs_dst = tmp;
404:
405: printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
406: if (do_download(in, out, g.gl_pathv[i], abs_dst, pflag) == -1)
407: err = -1;
408: xfree(abs_dst);
409: abs_dst = NULL;
1.1 djm 410: }
411:
1.29 djm 412: out:
413: xfree(abs_src);
414: if (abs_dst)
415: xfree(abs_dst);
416: globfree(&g);
417: return(err);
418: }
419:
420: int
421: process_put(int in, int out, char *src, char *dst, char *pwd, int pflag)
422: {
423: char *tmp_dst = NULL;
424: char *abs_dst = NULL;
425: char *tmp;
426: glob_t g;
427: int err = 0;
428: int i;
429:
430: if (dst) {
431: tmp_dst = xstrdup(dst);
432: tmp_dst = make_absolute(tmp_dst, pwd);
433: }
434:
1.30 markus 435: memset(&g, 0, sizeof(g));
1.29 djm 436: debug3("Looking up %s", src);
437: if (glob(src, 0, NULL, &g)) {
438: error("File \"%s\" not found.", src);
439: err = -1;
440: goto out;
441: }
442:
443: /* Only one match, dst may be file, directory or unspecified */
444: if (g.gl_pathv[0] && g.gl_matchc == 1) {
445: if (tmp_dst) {
446: /* If directory specified, append filename */
447: if (remote_is_dir(in, out, tmp_dst)) {
448: if (infer_path(g.gl_pathv[0], &tmp)) {
449: err = 1;
450: goto out;
451: }
452: abs_dst = path_append(tmp_dst, tmp);
453: xfree(tmp);
454: } else
455: abs_dst = xstrdup(tmp_dst);
1.32 ! markus 456: } else {
! 457: if (infer_path(g.gl_pathv[0], &abs_dst)) {
! 458: err = -1;
! 459: goto out;
! 460: }
! 461: abs_dst = make_absolute(abs_dst, pwd);
1.29 djm 462: }
463: printf("Uploading %s to %s\n", g.gl_pathv[0], abs_dst);
464: err = do_upload(in, out, g.gl_pathv[0], abs_dst, pflag);
465: goto out;
466: }
467:
468: /* Multiple matches, dst may be directory or unspecified */
469: if (tmp_dst && !remote_is_dir(in, out, tmp_dst)) {
1.30 markus 470: error("Multiple files match, but \"%s\" is not a directory",
1.29 djm 471: tmp_dst);
472: err = -1;
473: goto out;
474: }
475:
476: for(i = 0; g.gl_pathv[i]; i++) {
477: if (infer_path(g.gl_pathv[i], &tmp)) {
478: err = -1;
479: goto out;
480: }
481: if (tmp_dst) {
482: abs_dst = path_append(tmp_dst, tmp);
483: xfree(tmp);
484: } else
485: abs_dst = make_absolute(tmp, pwd);
486:
487: printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
488: if (do_upload(in, out, g.gl_pathv[i], abs_dst, pflag) == -1)
489: err = -1;
1.1 djm 490: }
491:
1.29 djm 492: out:
493: if (abs_dst)
494: xfree(abs_dst);
495: if (tmp_dst)
496: xfree(tmp_dst);
497: return(err);
1.1 djm 498: }
499:
500: int
501: parse_args(const char **cpp, int *pflag, unsigned long *n_arg,
502: char **path1, char **path2)
503: {
504: const char *cmd, *cp = *cpp;
1.21 stevesk 505: char *cp2;
1.4 markus 506: int base = 0;
1.21 stevesk 507: long l;
1.1 djm 508: int i, cmdnum;
509:
510: /* Skip leading whitespace */
511: cp = cp + strspn(cp, WHITESPACE);
512:
513: /* Ignore blank lines */
514: if (!*cp)
515: return(-1);
516:
517: /* Figure out which command we have */
518: for(i = 0; cmds[i].c; i++) {
519: int cmdlen = strlen(cmds[i].c);
520:
521: /* Check for command followed by whitespace */
522: if (!strncasecmp(cp, cmds[i].c, cmdlen) &&
523: strchr(WHITESPACE, cp[cmdlen])) {
524: cp += cmdlen;
525: cp = cp + strspn(cp, WHITESPACE);
526: break;
527: }
528: }
529: cmdnum = cmds[i].n;
530: cmd = cmds[i].c;
531:
532: /* Special case */
533: if (*cp == '!') {
534: cp++;
535: cmdnum = I_SHELL;
536: } else if (cmdnum == -1) {
537: error("Invalid command.");
538: return(-1);
539: }
540:
541: /* Get arguments and parse flags */
542: *pflag = *n_arg = 0;
543: *path1 = *path2 = NULL;
544: switch (cmdnum) {
545: case I_GET:
546: case I_PUT:
547: if (parse_getput_flags(&cp, pflag))
548: return(-1);
549: /* Get first pathname (mandatory) */
550: if (get_pathname(&cp, path1))
551: return(-1);
552: if (*path1 == NULL) {
553: error("You must specify at least one path after a "
554: "%s command.", cmd);
555: return(-1);
556: }
557: /* Try to get second pathname (optional) */
558: if (get_pathname(&cp, path2))
559: return(-1);
560: break;
561: case I_RENAME:
1.26 djm 562: case I_SYMLINK:
1.1 djm 563: if (get_pathname(&cp, path1))
564: return(-1);
565: if (get_pathname(&cp, path2))
566: return(-1);
567: if (!*path1 || !*path2) {
568: error("You must specify two paths after a %s "
569: "command.", cmd);
570: return(-1);
571: }
572: break;
573: case I_RM:
574: case I_MKDIR:
575: case I_RMDIR:
576: case I_CHDIR:
577: case I_LCHDIR:
578: case I_LMKDIR:
579: /* Get pathname (mandatory) */
580: if (get_pathname(&cp, path1))
581: return(-1);
582: if (*path1 == NULL) {
1.3 stevesk 583: error("You must specify a path after a %s command.",
1.1 djm 584: cmd);
585: return(-1);
586: }
587: break;
588: case I_LS:
589: /* Path is optional */
590: if (get_pathname(&cp, path1))
591: return(-1);
592: break;
593: case I_LLS:
594: case I_SHELL:
595: /* Uses the rest of the line */
596: break;
597: case I_LUMASK:
1.21 stevesk 598: base = 8;
1.1 djm 599: case I_CHMOD:
1.4 markus 600: base = 8;
1.1 djm 601: case I_CHOWN:
602: case I_CHGRP:
603: /* Get numeric arg (mandatory) */
1.21 stevesk 604: l = strtol(cp, &cp2, base);
605: if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) &&
606: errno == ERANGE) || l < 0) {
1.1 djm 607: error("You must supply a numeric argument "
608: "to the %s command.", cmd);
609: return(-1);
610: }
1.21 stevesk 611: cp = cp2;
612: *n_arg = l;
613: if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp))
614: break;
615: if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) {
1.1 djm 616: error("You must supply a numeric argument "
617: "to the %s command.", cmd);
618: return(-1);
619: }
620: cp += strspn(cp, WHITESPACE);
621:
622: /* Get pathname (mandatory) */
623: if (get_pathname(&cp, path1))
624: return(-1);
625: if (*path1 == NULL) {
1.3 stevesk 626: error("You must specify a path after a %s command.",
1.1 djm 627: cmd);
628: return(-1);
629: }
630: break;
631: case I_QUIT:
632: case I_PWD:
633: case I_LPWD:
634: case I_HELP:
1.28 markus 635: case I_VERSION:
1.1 djm 636: break;
637: default:
638: fatal("Command not implemented");
639: }
640:
641: *cpp = cp;
642: return(cmdnum);
643: }
644:
645: int
646: parse_dispatch_command(int in, int out, const char *cmd, char **pwd)
647: {
1.8 provos 648: char *path1, *path2, *tmp;
1.27 djm 649: int pflag, cmdnum, i;
1.1 djm 650: unsigned long n_arg;
651: Attrib a, *aa;
1.23 deraadt 652: char path_buf[MAXPATHLEN];
1.25 deraadt 653: int err = 0;
1.27 djm 654: glob_t g;
1.1 djm 655:
656: path1 = path2 = NULL;
657: cmdnum = parse_args(&cmd, &pflag, &n_arg, &path1, &path2);
658:
1.29 djm 659: memset(&g, 0, sizeof(g));
660:
1.1 djm 661: /* Perform command */
662: switch (cmdnum) {
663: case -1:
664: break;
665: case I_GET:
1.29 djm 666: err = process_get(in, out, path1, path2, *pwd, pflag);
1.1 djm 667: break;
668: case I_PUT:
1.29 djm 669: err = process_put(in, out, path1, path2, *pwd, pflag);
1.27 djm 670: break;
671: case I_RENAME:
1.1 djm 672: path1 = make_absolute(path1, *pwd);
673: path2 = make_absolute(path2, *pwd);
1.25 deraadt 674: err = do_rename(in, out, path1, path2);
1.1 djm 675: break;
1.26 djm 676: case I_SYMLINK:
677: if (version < 3) {
678: error("The server (version %d) does not support "
679: "this operation", version);
680: err = -1;
681: } else {
682: path2 = make_absolute(path2, *pwd);
683: err = do_symlink(in, out, path1, path2);
684: }
685: break;
1.1 djm 686: case I_RM:
687: path1 = make_absolute(path1, *pwd);
1.27 djm 688: remote_glob(in, out, path1, GLOB_NOCHECK, NULL, &g);
689: for(i = 0; g.gl_pathv[i]; i++) {
690: printf("Removing %s\n", g.gl_pathv[i]);
691: if (do_rm(in, out, g.gl_pathv[i]) == -1)
692: err = -1;
693: }
1.1 djm 694: break;
695: case I_MKDIR:
696: path1 = make_absolute(path1, *pwd);
697: attrib_clear(&a);
698: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
699: a.perm = 0777;
1.25 deraadt 700: err = do_mkdir(in, out, path1, &a);
1.1 djm 701: break;
702: case I_RMDIR:
703: path1 = make_absolute(path1, *pwd);
1.25 deraadt 704: err = do_rmdir(in, out, path1);
1.1 djm 705: break;
706: case I_CHDIR:
707: path1 = make_absolute(path1, *pwd);
1.25 deraadt 708: if ((tmp = do_realpath(in, out, path1)) == NULL) {
709: err = 1;
1.11 markus 710: break;
1.25 deraadt 711: }
1.29 djm 712: if ((aa = do_stat(in, out, tmp, 0)) == NULL) {
1.11 markus 713: xfree(tmp);
1.25 deraadt 714: err = 1;
1.11 markus 715: break;
716: }
1.9 djm 717: if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
718: error("Can't change directory: Can't check target");
719: xfree(tmp);
1.25 deraadt 720: err = 1;
1.9 djm 721: break;
722: }
723: if (!S_ISDIR(aa->perm)) {
724: error("Can't change directory: \"%s\" is not "
725: "a directory", tmp);
726: xfree(tmp);
1.25 deraadt 727: err = 1;
1.9 djm 728: break;
729: }
1.11 markus 730: xfree(*pwd);
731: *pwd = tmp;
1.1 djm 732: break;
733: case I_LS:
1.12 djm 734: if (!path1) {
735: do_ls(in, out, *pwd);
736: break;
737: }
1.1 djm 738: path1 = make_absolute(path1, *pwd);
1.12 djm 739: if ((tmp = do_realpath(in, out, path1)) == NULL)
740: break;
741: xfree(path1);
742: path1 = tmp;
1.29 djm 743: if ((aa = do_stat(in, out, path1, 0)) == NULL)
1.12 djm 744: break;
1.30 markus 745: if ((aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
1.12 djm 746: !S_ISDIR(aa->perm)) {
747: error("Can't ls: \"%s\" is not a directory", path1);
748: break;
749: }
750: do_ls(in, out, path1);
1.1 djm 751: break;
752: case I_LCHDIR:
1.25 deraadt 753: if (chdir(path1) == -1) {
1.1 djm 754: error("Couldn't change local directory to "
755: "\"%s\": %s", path1, strerror(errno));
1.25 deraadt 756: err = 1;
757: }
1.1 djm 758: break;
759: case I_LMKDIR:
1.25 deraadt 760: if (mkdir(path1, 0777) == -1) {
1.17 stevesk 761: error("Couldn't create local directory "
1.1 djm 762: "\"%s\": %s", path1, strerror(errno));
1.25 deraadt 763: err = 1;
764: }
1.1 djm 765: break;
766: case I_LLS:
767: local_do_ls(cmd);
768: break;
769: case I_SHELL:
770: local_do_shell(cmd);
771: break;
772: case I_LUMASK:
773: umask(n_arg);
1.21 stevesk 774: printf("Local umask: %03lo\n", n_arg);
1.1 djm 775: break;
776: case I_CHMOD:
777: path1 = make_absolute(path1, *pwd);
778: attrib_clear(&a);
779: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
780: a.perm = n_arg;
1.27 djm 781: remote_glob(in, out, path1, GLOB_NOCHECK, NULL, &g);
782: for(i = 0; g.gl_pathv[i]; i++) {
783: printf("Changing mode on %s\n", g.gl_pathv[i]);
784: do_setstat(in, out, g.gl_pathv[i], &a);
785: }
1.5 stevesk 786: break;
1.1 djm 787: case I_CHOWN:
788: path1 = make_absolute(path1, *pwd);
1.27 djm 789: remote_glob(in, out, path1, GLOB_NOCHECK, NULL, &g);
790: for(i = 0; g.gl_pathv[i]; i++) {
1.29 djm 791: if (!(aa = do_stat(in, out, g.gl_pathv[i], 0)))
1.27 djm 792: continue;
793: if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
794: error("Can't get current ownership of "
795: "remote file \"%s\"", g.gl_pathv[i]);
796: continue;
797: }
798: printf("Changing owner on %s\n", g.gl_pathv[i]);
799: aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
800: aa->uid = n_arg;
801: do_setstat(in, out, g.gl_pathv[i], aa);
1.1 djm 802: }
803: break;
804: case I_CHGRP:
805: path1 = make_absolute(path1, *pwd);
1.27 djm 806: remote_glob(in, out, path1, GLOB_NOCHECK, NULL, &g);
807: for(i = 0; g.gl_pathv[i]; i++) {
1.29 djm 808: if (!(aa = do_stat(in, out, g.gl_pathv[i], 0)))
1.27 djm 809: continue;
810: if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
811: error("Can't get current ownership of "
812: "remote file \"%s\"", g.gl_pathv[i]);
813: continue;
814: }
815: printf("Changing group on %s\n", g.gl_pathv[i]);
816: aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
817: aa->gid = n_arg;
818: do_setstat(in, out, g.gl_pathv[i], aa);
1.1 djm 819: }
820: break;
821: case I_PWD:
822: printf("Remote working directory: %s\n", *pwd);
823: break;
824: case I_LPWD:
825: if (!getcwd(path_buf, sizeof(path_buf)))
1.24 millert 826: error("Couldn't get local cwd: %s",
1.1 djm 827: strerror(errno));
828: else
829: printf("Local working directory: %s\n",
830: path_buf);
831: break;
832: case I_QUIT:
833: return(-1);
834: case I_HELP:
835: help();
1.28 markus 836: break;
837: case I_VERSION:
838: printf("SFTP protocol version %d\n", version);
1.1 djm 839: break;
840: default:
841: fatal("%d is not implemented", cmdnum);
842: }
843:
1.29 djm 844: if (g.gl_pathc)
845: globfree(&g);
1.1 djm 846: if (path1)
847: xfree(path1);
848: if (path2)
849: xfree(path2);
1.25 deraadt 850:
851: /* If an error occurs in batch mode we should abort. */
852: if (infile != stdin && err > 0)
853: return -1;
854:
1.1 djm 855: return(0);
856: }
857:
858: void
859: interactive_loop(int fd_in, int fd_out)
860: {
861: char *pwd;
862: char cmd[2048];
1.26 djm 863:
864: version = do_init(fd_in, fd_out);
865: if (version == -1)
866: fatal("Couldn't initialise connection to server");
1.1 djm 867:
868: pwd = do_realpath(fd_in, fd_out, ".");
869: if (pwd == NULL)
870: fatal("Need cwd");
871:
1.14 stevesk 872: setvbuf(stdout, NULL, _IOLBF, 0);
1.25 deraadt 873: setvbuf(infile, NULL, _IOLBF, 0);
1.1 djm 874:
875: for(;;) {
876: char *cp;
877:
878: printf("sftp> ");
879:
880: /* XXX: use libedit */
1.25 deraadt 881: if (fgets(cmd, sizeof(cmd), infile) == NULL) {
1.1 djm 882: printf("\n");
883: break;
1.25 deraadt 884: } else if (infile != stdin) /* Bluff typing */
885: printf("%s", cmd);
886:
1.1 djm 887: cp = strrchr(cmd, '\n');
888: if (cp)
889: *cp = '\0';
1.25 deraadt 890:
1.1 djm 891: if (parse_dispatch_command(fd_in, fd_out, cmd, &pwd))
892: break;
893: }
894: xfree(pwd);
895: }