Annotation of src/usr.bin/ssh/sftp-int.c, Revision 1.67
1.1 djm 1: /*
1.44 djm 2: * Copyright (c) 2001,2002 Damien Miller. All rights reserved.
1.1 djm 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:
25: /* XXX: recursive operations */
26:
27: #include "includes.h"
1.67 ! mouring 28: RCSID("$OpenBSD: sftp-int.c,v 1.66 2004/01/13 09:25:05 djm Exp $");
1.27 djm 29:
30: #include <glob.h>
1.1 djm 31:
32: #include "buffer.h"
33: #include "xmalloc.h"
34: #include "log.h"
35: #include "pathnames.h"
36:
37: #include "sftp.h"
38: #include "sftp-common.h"
1.27 djm 39: #include "sftp-glob.h"
1.1 djm 40: #include "sftp-client.h"
41: #include "sftp-int.h"
42:
1.26 djm 43: /* File to read commands from */
44: extern FILE *infile;
45:
1.66 djm 46: /* Are we in batchfile mode? */
47: extern int batchmode;
48:
1.42 djm 49: /* Size of buffer used when copying files */
50: extern size_t copy_buffer_len;
51:
1.43 djm 52: /* Number of concurrent outstanding requests */
53: extern int num_requests;
54:
1.52 fgsch 55: /* This is set to 0 if the progressmeter is not desired. */
56: int showprogress = 1;
57:
1.64 jmc 58: /* Separators for interactive commands */
1.1 djm 59: #define WHITESPACE " \t\r\n"
60:
1.60 mouring 61: /* Define what type of ls view (0 - multi-column) */
62: #define LONG_VIEW 1 /* Full view ala ls -l */
63: #define SHORT_VIEW 2 /* Single row view ala ls -1 */
64:
1.1 djm 65: /* Commands for interactive mode */
66: #define I_CHDIR 1
67: #define I_CHGRP 2
68: #define I_CHMOD 3
69: #define I_CHOWN 4
70: #define I_GET 5
71: #define I_HELP 6
72: #define I_LCHDIR 7
73: #define I_LLS 8
74: #define I_LMKDIR 9
75: #define I_LPWD 10
76: #define I_LS 11
77: #define I_LUMASK 12
78: #define I_MKDIR 13
79: #define I_PUT 14
80: #define I_PWD 15
81: #define I_QUIT 16
82: #define I_RENAME 17
83: #define I_RM 18
84: #define I_RMDIR 19
85: #define I_SHELL 20
1.26 djm 86: #define I_SYMLINK 21
1.28 markus 87: #define I_VERSION 22
1.52 fgsch 88: #define I_PROGRESS 23
1.1 djm 89:
90: struct CMD {
1.6 deraadt 91: const char *c;
1.1 djm 92: const int n;
93: };
94:
1.54 djm 95: static const struct CMD cmds[] = {
1.40 markus 96: { "bye", I_QUIT },
1.15 stevesk 97: { "cd", I_CHDIR },
98: { "chdir", I_CHDIR },
99: { "chgrp", I_CHGRP },
100: { "chmod", I_CHMOD },
101: { "chown", I_CHOWN },
102: { "dir", I_LS },
103: { "exit", I_QUIT },
104: { "get", I_GET },
1.34 djm 105: { "mget", I_GET },
1.15 stevesk 106: { "help", I_HELP },
107: { "lcd", I_LCHDIR },
108: { "lchdir", I_LCHDIR },
109: { "lls", I_LLS },
110: { "lmkdir", I_LMKDIR },
1.26 djm 111: { "ln", I_SYMLINK },
1.15 stevesk 112: { "lpwd", I_LPWD },
113: { "ls", I_LS },
114: { "lumask", I_LUMASK },
115: { "mkdir", I_MKDIR },
1.52 fgsch 116: { "progress", I_PROGRESS },
1.15 stevesk 117: { "put", I_PUT },
1.34 djm 118: { "mput", I_PUT },
1.15 stevesk 119: { "pwd", I_PWD },
120: { "quit", I_QUIT },
121: { "rename", I_RENAME },
122: { "rm", I_RM },
123: { "rmdir", I_RMDIR },
1.26 djm 124: { "symlink", I_SYMLINK },
1.28 markus 125: { "version", I_VERSION },
1.6 deraadt 126: { "!", I_SHELL },
1.7 deraadt 127: { "?", I_HELP },
1.6 deraadt 128: { NULL, -1}
1.1 djm 129: };
130:
1.37 itojun 131: static void
1.1 djm 132: help(void)
133: {
134: printf("Available commands:\n");
1.13 stevesk 135: printf("cd path Change remote directory to 'path'\n");
136: printf("lcd path Change local directory to 'path'\n");
137: printf("chgrp grp path Change group of file 'path' to 'grp'\n");
138: printf("chmod mode path Change permissions of file 'path' to 'mode'\n");
139: printf("chown own path Change owner of file 'path' to 'own'\n");
140: printf("help Display this help text\n");
141: printf("get remote-path [local-path] Download file\n");
142: printf("lls [ls-options [path]] Display local directory listing\n");
1.26 djm 143: printf("ln oldpath newpath Symlink remote file\n");
1.13 stevesk 144: printf("lmkdir path Create local directory\n");
145: printf("lpwd Print local working directory\n");
146: printf("ls [path] Display remote directory listing\n");
147: printf("lumask umask Set local umask to 'umask'\n");
148: printf("mkdir path Create remote directory\n");
1.53 fgsch 149: printf("progress Toggle display of progress meter\n");
1.13 stevesk 150: printf("put local-path [remote-path] Upload file\n");
151: printf("pwd Display remote working directory\n");
152: printf("exit Quit sftp\n");
153: printf("quit Quit sftp\n");
154: printf("rename oldpath newpath Rename remote file\n");
155: printf("rmdir path Remove remote directory\n");
156: printf("rm path Delete remote file\n");
1.26 djm 157: printf("symlink oldpath newpath Symlink remote file\n");
1.28 markus 158: printf("version Show SFTP version\n");
1.1 djm 159: printf("!command Execute 'command' in local shell\n");
160: printf("! Escape to local shell\n");
1.13 stevesk 161: printf("? Synonym for help\n");
1.1 djm 162: }
163:
1.37 itojun 164: static void
1.1 djm 165: local_do_shell(const char *args)
166: {
1.36 markus 167: int status;
1.1 djm 168: char *shell;
169: pid_t pid;
1.3 stevesk 170:
1.1 djm 171: if (!*args)
172: args = NULL;
1.3 stevesk 173:
1.1 djm 174: if ((shell = getenv("SHELL")) == NULL)
175: shell = _PATH_BSHELL;
176:
177: if ((pid = fork()) == -1)
178: fatal("Couldn't fork: %s", strerror(errno));
179:
180: if (pid == 0) {
181: /* XXX: child has pipe fds to ssh subproc open - issue? */
182: if (args) {
183: debug3("Executing %s -c \"%s\"", shell, args);
1.38 deraadt 184: execl(shell, shell, "-c", args, (char *)NULL);
1.1 djm 185: } else {
186: debug3("Executing %s", shell);
1.38 deraadt 187: execl(shell, shell, (char *)NULL);
1.1 djm 188: }
1.3 stevesk 189: fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
1.1 djm 190: strerror(errno));
191: _exit(1);
192: }
1.46 markus 193: while (waitpid(pid, &status, 0) == -1)
194: if (errno != EINTR)
195: fatal("Couldn't wait for child: %s", strerror(errno));
1.1 djm 196: if (!WIFEXITED(status))
197: error("Shell exited abormally");
198: else if (WEXITSTATUS(status))
199: error("Shell exited with status %d", WEXITSTATUS(status));
200: }
201:
1.37 itojun 202: static void
1.1 djm 203: local_do_ls(const char *args)
204: {
205: if (!args || !*args)
1.18 stevesk 206: local_do_shell(_PATH_LS);
1.1 djm 207: else {
1.18 stevesk 208: int len = strlen(_PATH_LS " ") + strlen(args) + 1;
1.16 deraadt 209: char *buf = xmalloc(len);
1.1 djm 210:
211: /* XXX: quoting - rip quoting code from ftp? */
1.18 stevesk 212: snprintf(buf, len, _PATH_LS " %s", args);
1.1 djm 213: local_do_shell(buf);
1.16 deraadt 214: xfree(buf);
1.1 djm 215: }
216: }
217:
1.48 djm 218: /* Strip one path (usually the pwd) from the start of another */
219: static char *
220: path_strip(char *path, char *strip)
221: {
222: size_t len;
223:
224: if (strip == NULL)
225: return (xstrdup(path));
226:
227: len = strlen(strip);
228: if (strip != NULL && strncmp(path, strip, len) == 0) {
229: if (strip[len - 1] != '/' && path[len] == '/')
230: len++;
231: return (xstrdup(path + len));
232: }
233:
234: return (xstrdup(path));
235: }
236:
1.37 itojun 237: static char *
1.29 djm 238: path_append(char *p1, char *p2)
239: {
240: char *ret;
1.31 markus 241: int len = strlen(p1) + strlen(p2) + 2;
1.29 djm 242:
1.31 markus 243: ret = xmalloc(len);
244: strlcpy(ret, p1, len);
1.48 djm 245: if (p1[strlen(p1) - 1] != '/')
1.39 jakob 246: strlcat(ret, "/", len);
1.31 markus 247: strlcat(ret, p2, len);
1.29 djm 248:
249: return(ret);
250: }
251:
1.37 itojun 252: static char *
1.1 djm 253: make_absolute(char *p, char *pwd)
254: {
1.29 djm 255: char *abs;
1.1 djm 256:
257: /* Derelativise */
258: if (p && p[0] != '/') {
1.29 djm 259: abs = path_append(pwd, p);
1.1 djm 260: xfree(p);
1.29 djm 261: return(abs);
262: } else
263: return(p);
264: }
265:
1.37 itojun 266: static int
1.29 djm 267: infer_path(const char *p, char **ifp)
268: {
269: char *cp;
270:
271: cp = strrchr(p, '/');
272: if (cp == NULL) {
273: *ifp = xstrdup(p);
274: return(0);
1.1 djm 275: }
276:
1.29 djm 277: if (!cp[1]) {
278: error("Invalid path");
279: return(-1);
280: }
281:
282: *ifp = xstrdup(cp + 1);
283: return(0);
1.1 djm 284: }
285:
1.37 itojun 286: static int
1.1 djm 287: parse_getput_flags(const char **cpp, int *pflag)
288: {
289: const char *cp = *cpp;
290:
291: /* Check for flags */
292: if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) {
1.20 djm 293: switch (cp[1]) {
1.22 djm 294: case 'p':
1.1 djm 295: case 'P':
296: *pflag = 1;
297: break;
298: default:
1.22 djm 299: error("Invalid flag -%c", cp[1]);
1.1 djm 300: return(-1);
301: }
302: cp += 2;
303: *cpp = cp + strspn(cp, WHITESPACE);
304: }
305:
306: return(0);
307: }
308:
1.37 itojun 309: static int
1.48 djm 310: parse_ls_flags(const char **cpp, int *lflag)
311: {
312: const char *cp = *cpp;
313:
314: /* Check for flags */
315: if (cp++[0] == '-') {
316: for(; strchr(WHITESPACE, *cp) == NULL; cp++) {
317: switch (*cp) {
318: case 'l':
1.60 mouring 319: *lflag = LONG_VIEW;
320: break;
321: case '1':
322: *lflag = SHORT_VIEW;
1.48 djm 323: break;
324: default:
325: error("Invalid flag -%c", *cp);
326: return(-1);
327: }
328: }
329: *cpp = cp + strspn(cp, WHITESPACE);
330: }
331:
332: return(0);
333: }
334:
335: static int
1.1 djm 336: get_pathname(const char **cpp, char **path)
337: {
1.8 provos 338: const char *cp = *cpp, *end;
339: char quot;
1.61 djm 340: int i, j;
1.1 djm 341:
342: cp += strspn(cp, WHITESPACE);
343: if (!*cp) {
344: *cpp = cp;
345: *path = NULL;
1.8 provos 346: return (0);
1.1 djm 347: }
348:
1.61 djm 349: *path = xmalloc(strlen(cp) + 1);
350:
1.1 djm 351: /* Check for quoted filenames */
352: if (*cp == '\"' || *cp == '\'') {
1.8 provos 353: quot = *cp++;
1.30 markus 354:
1.61 djm 355: /* Search for terminating quote, unescape some chars */
356: for (i = j = 0; i <= strlen(cp); i++) {
357: if (cp[i] == quot) { /* Found quote */
1.63 djm 358: i++;
1.61 djm 359: (*path)[j] = '\0';
360: break;
361: }
362: if (cp[i] == '\0') { /* End of string */
363: error("Unterminated quote");
364: goto fail;
365: }
366: if (cp[i] == '\\') { /* Escaped characters */
367: i++;
1.65 djm 368: if (cp[i] != '\'' && cp[i] != '\"' &&
1.61 djm 369: cp[i] != '\\') {
370: error("Bad escaped character '\%c'",
371: cp[i]);
372: goto fail;
373: }
374: }
375: (*path)[j++] = cp[i];
1.1 djm 376: }
1.61 djm 377:
378: if (j == 0) {
1.1 djm 379: error("Empty quotes");
1.8 provos 380: goto fail;
1.1 djm 381: }
1.61 djm 382: *cpp = cp + i + strspn(cp + i, WHITESPACE);
1.8 provos 383: } else {
384: /* Read to end of filename */
385: end = strpbrk(cp, WHITESPACE);
386: if (end == NULL)
387: end = strchr(cp, '\0');
388: *cpp = end + strspn(end, WHITESPACE);
1.61 djm 389:
390: memcpy(*path, cp, end - cp);
391: (*path)[end - cp] = '\0';
1.1 djm 392: }
1.61 djm 393: return (0);
1.8 provos 394:
395: fail:
1.65 djm 396: xfree(*path);
397: *path = NULL;
1.8 provos 398: return (-1);
1.1 djm 399: }
400:
1.37 itojun 401: static int
1.29 djm 402: is_dir(char *path)
403: {
404: struct stat sb;
405:
406: /* XXX: report errors? */
407: if (stat(path, &sb) == -1)
408: return(0);
409:
410: return(sb.st_mode & S_IFDIR);
411: }
412:
1.37 itojun 413: static int
1.55 djm 414: is_reg(char *path)
415: {
416: struct stat sb;
417:
418: if (stat(path, &sb) == -1)
419: fatal("stat %s: %s", path, strerror(errno));
420:
421: return(S_ISREG(sb.st_mode));
422: }
423:
424: static int
1.44 djm 425: remote_is_dir(struct sftp_conn *conn, char *path)
1.1 djm 426: {
1.29 djm 427: Attrib *a;
1.1 djm 428:
1.29 djm 429: /* XXX: report errors? */
1.44 djm 430: if ((a = do_stat(conn, path, 1)) == NULL)
1.29 djm 431: return(0);
432: if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
1.1 djm 433: return(0);
1.29 djm 434: return(a->perm & S_IFDIR);
435: }
436:
1.37 itojun 437: static int
1.44 djm 438: process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
1.29 djm 439: {
440: char *abs_src = NULL;
441: char *abs_dst = NULL;
442: char *tmp;
443: glob_t g;
444: int err = 0;
445: int i;
1.30 markus 446:
1.29 djm 447: abs_src = xstrdup(src);
448: abs_src = make_absolute(abs_src, pwd);
449:
1.30 markus 450: memset(&g, 0, sizeof(g));
1.29 djm 451: debug3("Looking up %s", abs_src);
1.44 djm 452: if (remote_glob(conn, abs_src, 0, NULL, &g)) {
1.29 djm 453: error("File \"%s\" not found.", abs_src);
454: err = -1;
455: goto out;
456: }
457:
1.59 mouring 458: /* If multiple matches, dst must be a directory or unspecified */
459: if (g.gl_matchc > 1 && dst && !is_dir(dst)) {
1.30 markus 460: error("Multiple files match, but \"%s\" is not a directory",
1.29 djm 461: dst);
462: err = -1;
463: goto out;
464: }
1.30 markus 465:
1.41 deraadt 466: for (i = 0; g.gl_pathv[i]; i++) {
1.29 djm 467: if (infer_path(g.gl_pathv[i], &tmp)) {
468: err = -1;
469: goto out;
470: }
1.59 mouring 471:
472: if (g.gl_matchc == 1 && dst) {
473: /* If directory specified, append filename */
474: if (is_dir(dst)) {
475: if (infer_path(g.gl_pathv[0], &tmp)) {
476: err = 1;
477: goto out;
478: }
479: abs_dst = path_append(dst, tmp);
480: xfree(tmp);
481: } else
482: abs_dst = xstrdup(dst);
483: } else if (dst) {
1.29 djm 484: abs_dst = path_append(dst, tmp);
485: xfree(tmp);
486: } else
487: abs_dst = tmp;
488:
489: printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
1.44 djm 490: if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
1.29 djm 491: err = -1;
492: xfree(abs_dst);
493: abs_dst = NULL;
1.1 djm 494: }
495:
1.29 djm 496: out:
497: xfree(abs_src);
498: if (abs_dst)
499: xfree(abs_dst);
500: globfree(&g);
501: return(err);
502: }
503:
1.37 itojun 504: static int
1.44 djm 505: process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
1.29 djm 506: {
507: char *tmp_dst = NULL;
508: char *abs_dst = NULL;
509: char *tmp;
510: glob_t g;
511: int err = 0;
512: int i;
513:
514: if (dst) {
515: tmp_dst = xstrdup(dst);
516: tmp_dst = make_absolute(tmp_dst, pwd);
517: }
518:
1.30 markus 519: memset(&g, 0, sizeof(g));
1.29 djm 520: debug3("Looking up %s", src);
521: if (glob(src, 0, NULL, &g)) {
522: error("File \"%s\" not found.", src);
523: err = -1;
524: goto out;
525: }
526:
1.59 mouring 527: /* If multiple matches, dst may be directory or unspecified */
528: if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) {
1.30 markus 529: error("Multiple files match, but \"%s\" is not a directory",
1.29 djm 530: tmp_dst);
531: err = -1;
532: goto out;
533: }
534:
1.41 deraadt 535: for (i = 0; g.gl_pathv[i]; i++) {
1.55 djm 536: if (!is_reg(g.gl_pathv[i])) {
1.65 djm 537: error("skipping non-regular file %s",
1.55 djm 538: g.gl_pathv[i]);
539: continue;
540: }
1.29 djm 541: if (infer_path(g.gl_pathv[i], &tmp)) {
542: err = -1;
543: goto out;
544: }
1.59 mouring 545:
546: if (g.gl_matchc == 1 && tmp_dst) {
547: /* If directory specified, append filename */
548: if (remote_is_dir(conn, tmp_dst)) {
549: if (infer_path(g.gl_pathv[0], &tmp)) {
550: err = 1;
551: goto out;
552: }
553: abs_dst = path_append(tmp_dst, tmp);
554: xfree(tmp);
555: } else
556: abs_dst = xstrdup(tmp_dst);
557:
558: } else if (tmp_dst) {
1.29 djm 559: abs_dst = path_append(tmp_dst, tmp);
560: xfree(tmp);
561: } else
562: abs_dst = make_absolute(tmp, pwd);
563:
564: printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
1.44 djm 565: if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
1.29 djm 566: err = -1;
1.1 djm 567: }
568:
1.29 djm 569: out:
570: if (abs_dst)
571: xfree(abs_dst);
572: if (tmp_dst)
573: xfree(tmp_dst);
1.58 mouring 574: globfree(&g);
1.29 djm 575: return(err);
1.1 djm 576: }
577:
1.37 itojun 578: static int
1.48 djm 579: sdirent_comp(const void *aa, const void *bb)
580: {
581: SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
582: SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
583:
1.50 deraadt 584: return (strcmp(a->filename, b->filename));
1.48 djm 585: }
586:
587: /* sftp ls.1 replacement for directories */
588: static int
589: do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
590: {
1.60 mouring 591: int n, c = 1, colspace = 0, columns = 1;
1.48 djm 592: SFTP_DIRENT **d;
593:
594: if ((n = do_readdir(conn, path, &d)) != 0)
595: return (n);
596:
1.60 mouring 597: if (!(lflag & SHORT_VIEW)) {
598: int m = 0, width = 80;
599: struct winsize ws;
1.67 ! mouring 600: char *tmp;
1.60 mouring 601:
602: /* Count entries for sort and find longest filename */
603: for (n = 0; d[n] != NULL; n++)
604: m = MAX(m, strlen(d[n]->filename));
605:
1.67 ! mouring 606: /* Add any subpath that also needs to be counted */
! 607: tmp = path_strip(path, strip_path);
! 608: m += strlen(tmp);
! 609: xfree(tmp);
! 610:
1.65 djm 611: if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
1.60 mouring 612: width = ws.ws_col;
613:
614: columns = width / (m + 2);
1.62 fgsch 615: columns = MAX(columns, 1);
1.60 mouring 616: colspace = width / columns;
1.67 ! mouring 617: colspace = MIN(colspace, width);
1.60 mouring 618: }
1.48 djm 619:
620: qsort(d, n, sizeof(*d), sdirent_comp);
621:
622: for (n = 0; d[n] != NULL; n++) {
623: char *tmp, *fname;
1.50 deraadt 624:
1.48 djm 625: tmp = path_append(path, d[n]->filename);
626: fname = path_strip(tmp, strip_path);
627: xfree(tmp);
628:
1.60 mouring 629: if (lflag & LONG_VIEW) {
1.48 djm 630: char *lname;
631: struct stat sb;
632:
633: memset(&sb, 0, sizeof(sb));
634: attrib_to_stat(&d[n]->a, &sb);
635: lname = ls_file(fname, &sb, 1);
636: printf("%s\n", lname);
637: xfree(lname);
638: } else {
1.60 mouring 639: printf("%-*s", colspace, fname);
640: if (c >= columns) {
641: printf("\n");
642: c = 1;
643: } else
644: c++;
1.48 djm 645: }
1.50 deraadt 646:
1.48 djm 647: xfree(fname);
648: }
649:
1.60 mouring 650: if (!(lflag & LONG_VIEW) && (c != 1))
651: printf("\n");
652:
1.48 djm 653: free_sftp_dirents(d);
654: return (0);
655: }
656:
657: /* sftp ls.1 replacement which handles path globs */
658: static int
1.50 deraadt 659: do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
1.48 djm 660: int lflag)
661: {
662: glob_t g;
1.60 mouring 663: int i, c = 1, colspace = 0, columns = 1;
1.48 djm 664: Attrib *a;
665:
666: memset(&g, 0, sizeof(g));
667:
1.50 deraadt 668: if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
1.48 djm 669: NULL, &g)) {
670: error("Can't ls: \"%s\" not found", path);
671: return (-1);
672: }
673:
674: /*
1.50 deraadt 675: * If the glob returns a single match, which is the same as the
1.48 djm 676: * input glob, and it is a directory, then just list its contents
677: */
1.50 deraadt 678: if (g.gl_pathc == 1 &&
1.48 djm 679: strncmp(path, g.gl_pathv[0], strlen(g.gl_pathv[0]) - 1) == 0) {
680: if ((a = do_lstat(conn, path, 1)) == NULL) {
681: globfree(&g);
1.65 djm 682: return (-1);
1.48 djm 683: }
1.50 deraadt 684: if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
1.48 djm 685: S_ISDIR(a->perm)) {
686: globfree(&g);
687: return (do_ls_dir(conn, path, strip_path, lflag));
688: }
689: }
690:
1.60 mouring 691: if (!(lflag & SHORT_VIEW)) {
692: int m = 0, width = 80;
1.65 djm 693: struct winsize ws;
1.60 mouring 694:
695: /* Count entries for sort and find longest filename */
1.65 djm 696: for (i = 0; g.gl_pathv[i]; i++)
1.60 mouring 697: m = MAX(m, strlen(g.gl_pathv[i]));
698:
699: if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
700: width = ws.ws_col;
701:
702: columns = width / (m + 2);
1.62 fgsch 703: columns = MAX(columns, 1);
1.60 mouring 704: colspace = width / columns;
705: }
706:
1.48 djm 707: for (i = 0; g.gl_pathv[i]; i++) {
1.60 mouring 708: char *fname;
1.48 djm 709:
710: fname = path_strip(g.gl_pathv[i], strip_path);
711:
1.60 mouring 712: if (lflag & LONG_VIEW) {
713: char *lname;
714: struct stat sb;
715:
1.48 djm 716: /*
717: * XXX: this is slow - 1 roundtrip per path
1.50 deraadt 718: * A solution to this is to fork glob() and
719: * build a sftp specific version which keeps the
1.48 djm 720: * attribs (which currently get thrown away)
721: * that the server returns as well as the filenames.
722: */
723: memset(&sb, 0, sizeof(sb));
724: a = do_lstat(conn, g.gl_pathv[i], 1);
725: if (a != NULL)
726: attrib_to_stat(a, &sb);
727: lname = ls_file(fname, &sb, 1);
728: printf("%s\n", lname);
729: xfree(lname);
730: } else {
1.60 mouring 731: printf("%-*s", colspace, fname);
732: if (c >= columns) {
733: printf("\n");
734: c = 1;
735: } else
736: c++;
1.48 djm 737: }
738: xfree(fname);
739: }
1.60 mouring 740:
741: if (!(lflag & LONG_VIEW) && (c != 1))
742: printf("\n");
1.48 djm 743:
744: if (g.gl_pathc)
745: globfree(&g);
746:
747: return (0);
748: }
749:
750: static int
1.51 djm 751: parse_args(const char **cpp, int *pflag, int *lflag, int *iflag,
1.48 djm 752: unsigned long *n_arg, char **path1, char **path2)
1.1 djm 753: {
754: const char *cmd, *cp = *cpp;
1.21 stevesk 755: char *cp2;
1.4 markus 756: int base = 0;
1.21 stevesk 757: long l;
1.1 djm 758: int i, cmdnum;
759:
760: /* Skip leading whitespace */
761: cp = cp + strspn(cp, WHITESPACE);
762:
1.51 djm 763: /* Ignore blank lines and lines which begin with comment '#' char */
764: if (*cp == '\0' || *cp == '#')
765: return (0);
1.1 djm 766:
1.51 djm 767: /* Check for leading '-' (disable error processing) */
768: *iflag = 0;
769: if (*cp == '-') {
770: *iflag = 1;
771: cp++;
772: }
1.65 djm 773:
1.1 djm 774: /* Figure out which command we have */
1.41 deraadt 775: for (i = 0; cmds[i].c; i++) {
1.1 djm 776: int cmdlen = strlen(cmds[i].c);
777:
778: /* Check for command followed by whitespace */
779: if (!strncasecmp(cp, cmds[i].c, cmdlen) &&
780: strchr(WHITESPACE, cp[cmdlen])) {
781: cp += cmdlen;
782: cp = cp + strspn(cp, WHITESPACE);
783: break;
784: }
785: }
786: cmdnum = cmds[i].n;
787: cmd = cmds[i].c;
788:
789: /* Special case */
790: if (*cp == '!') {
791: cp++;
792: cmdnum = I_SHELL;
793: } else if (cmdnum == -1) {
794: error("Invalid command.");
1.51 djm 795: return (-1);
1.1 djm 796: }
797:
798: /* Get arguments and parse flags */
1.48 djm 799: *lflag = *pflag = *n_arg = 0;
1.1 djm 800: *path1 = *path2 = NULL;
801: switch (cmdnum) {
802: case I_GET:
803: case I_PUT:
804: if (parse_getput_flags(&cp, pflag))
805: return(-1);
806: /* Get first pathname (mandatory) */
807: if (get_pathname(&cp, path1))
808: return(-1);
809: if (*path1 == NULL) {
810: error("You must specify at least one path after a "
811: "%s command.", cmd);
812: return(-1);
813: }
814: /* Try to get second pathname (optional) */
815: if (get_pathname(&cp, path2))
816: return(-1);
817: break;
818: case I_RENAME:
1.26 djm 819: case I_SYMLINK:
1.1 djm 820: if (get_pathname(&cp, path1))
821: return(-1);
822: if (get_pathname(&cp, path2))
823: return(-1);
824: if (!*path1 || !*path2) {
825: error("You must specify two paths after a %s "
826: "command.", cmd);
827: return(-1);
828: }
829: break;
830: case I_RM:
831: case I_MKDIR:
832: case I_RMDIR:
833: case I_CHDIR:
834: case I_LCHDIR:
835: case I_LMKDIR:
836: /* Get pathname (mandatory) */
837: if (get_pathname(&cp, path1))
838: return(-1);
839: if (*path1 == NULL) {
1.3 stevesk 840: error("You must specify a path after a %s command.",
1.1 djm 841: cmd);
842: return(-1);
843: }
844: break;
845: case I_LS:
1.48 djm 846: if (parse_ls_flags(&cp, lflag))
847: return(-1);
1.1 djm 848: /* Path is optional */
849: if (get_pathname(&cp, path1))
850: return(-1);
851: break;
852: case I_LLS:
853: case I_SHELL:
854: /* Uses the rest of the line */
855: break;
856: case I_LUMASK:
1.21 stevesk 857: base = 8;
1.1 djm 858: case I_CHMOD:
1.4 markus 859: base = 8;
1.1 djm 860: case I_CHOWN:
861: case I_CHGRP:
862: /* Get numeric arg (mandatory) */
1.21 stevesk 863: l = strtol(cp, &cp2, base);
864: if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) &&
865: errno == ERANGE) || l < 0) {
1.1 djm 866: error("You must supply a numeric argument "
867: "to the %s command.", cmd);
868: return(-1);
869: }
1.21 stevesk 870: cp = cp2;
871: *n_arg = l;
872: if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp))
873: break;
874: if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) {
1.1 djm 875: error("You must supply a numeric argument "
876: "to the %s command.", cmd);
877: return(-1);
878: }
879: cp += strspn(cp, WHITESPACE);
880:
881: /* Get pathname (mandatory) */
882: if (get_pathname(&cp, path1))
883: return(-1);
884: if (*path1 == NULL) {
1.3 stevesk 885: error("You must specify a path after a %s command.",
1.1 djm 886: cmd);
887: return(-1);
888: }
889: break;
890: case I_QUIT:
891: case I_PWD:
892: case I_LPWD:
893: case I_HELP:
1.28 markus 894: case I_VERSION:
1.52 fgsch 895: case I_PROGRESS:
1.1 djm 896: break;
897: default:
898: fatal("Command not implemented");
899: }
900:
901: *cpp = cp;
902: return(cmdnum);
903: }
904:
1.37 itojun 905: static int
1.51 djm 906: parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
907: int err_abort)
1.1 djm 908: {
1.8 provos 909: char *path1, *path2, *tmp;
1.51 djm 910: int pflag, lflag, iflag, cmdnum, i;
1.1 djm 911: unsigned long n_arg;
912: Attrib a, *aa;
1.23 deraadt 913: char path_buf[MAXPATHLEN];
1.25 deraadt 914: int err = 0;
1.27 djm 915: glob_t g;
1.1 djm 916:
917: path1 = path2 = NULL;
1.51 djm 918: cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg,
1.48 djm 919: &path1, &path2);
1.1 djm 920:
1.51 djm 921: if (iflag != 0)
922: err_abort = 0;
923:
1.29 djm 924: memset(&g, 0, sizeof(g));
925:
1.1 djm 926: /* Perform command */
927: switch (cmdnum) {
1.51 djm 928: case 0:
929: /* Blank line */
930: break;
1.1 djm 931: case -1:
1.51 djm 932: /* Unrecognized command */
933: err = -1;
1.1 djm 934: break;
935: case I_GET:
1.44 djm 936: err = process_get(conn, path1, path2, *pwd, pflag);
1.1 djm 937: break;
938: case I_PUT:
1.44 djm 939: err = process_put(conn, path1, path2, *pwd, pflag);
1.33 markus 940: break;
941: case I_RENAME:
1.1 djm 942: path1 = make_absolute(path1, *pwd);
943: path2 = make_absolute(path2, *pwd);
1.44 djm 944: err = do_rename(conn, path1, path2);
1.1 djm 945: break;
1.26 djm 946: case I_SYMLINK:
1.44 djm 947: path2 = make_absolute(path2, *pwd);
948: err = do_symlink(conn, path1, path2);
1.26 djm 949: break;
1.1 djm 950: case I_RM:
951: path1 = make_absolute(path1, *pwd);
1.44 djm 952: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.41 deraadt 953: for (i = 0; g.gl_pathv[i]; i++) {
1.27 djm 954: printf("Removing %s\n", g.gl_pathv[i]);
1.51 djm 955: err = do_rm(conn, g.gl_pathv[i]);
956: if (err != 0 && err_abort)
957: break;
1.27 djm 958: }
1.1 djm 959: break;
960: case I_MKDIR:
961: path1 = make_absolute(path1, *pwd);
962: attrib_clear(&a);
963: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
964: a.perm = 0777;
1.44 djm 965: err = do_mkdir(conn, path1, &a);
1.1 djm 966: break;
967: case I_RMDIR:
968: path1 = make_absolute(path1, *pwd);
1.44 djm 969: err = do_rmdir(conn, path1);
1.1 djm 970: break;
971: case I_CHDIR:
972: path1 = make_absolute(path1, *pwd);
1.44 djm 973: if ((tmp = do_realpath(conn, path1)) == NULL) {
1.25 deraadt 974: err = 1;
1.11 markus 975: break;
1.25 deraadt 976: }
1.44 djm 977: if ((aa = do_stat(conn, tmp, 0)) == NULL) {
1.11 markus 978: xfree(tmp);
1.25 deraadt 979: err = 1;
1.11 markus 980: break;
981: }
1.9 djm 982: if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
983: error("Can't change directory: Can't check target");
984: xfree(tmp);
1.25 deraadt 985: err = 1;
1.9 djm 986: break;
987: }
988: if (!S_ISDIR(aa->perm)) {
989: error("Can't change directory: \"%s\" is not "
990: "a directory", tmp);
991: xfree(tmp);
1.25 deraadt 992: err = 1;
1.9 djm 993: break;
994: }
1.11 markus 995: xfree(*pwd);
996: *pwd = tmp;
1.1 djm 997: break;
998: case I_LS:
1.12 djm 999: if (!path1) {
1.48 djm 1000: do_globbed_ls(conn, *pwd, *pwd, lflag);
1.12 djm 1001: break;
1002: }
1.50 deraadt 1003:
1.48 djm 1004: /* Strip pwd off beginning of non-absolute paths */
1005: tmp = NULL;
1006: if (*path1 != '/')
1007: tmp = *pwd;
1008:
1.1 djm 1009: path1 = make_absolute(path1, *pwd);
1.51 djm 1010: err = do_globbed_ls(conn, path1, tmp, lflag);
1.1 djm 1011: break;
1012: case I_LCHDIR:
1.25 deraadt 1013: if (chdir(path1) == -1) {
1.1 djm 1014: error("Couldn't change local directory to "
1015: "\"%s\": %s", path1, strerror(errno));
1.25 deraadt 1016: err = 1;
1017: }
1.1 djm 1018: break;
1019: case I_LMKDIR:
1.25 deraadt 1020: if (mkdir(path1, 0777) == -1) {
1.17 stevesk 1021: error("Couldn't create local directory "
1.1 djm 1022: "\"%s\": %s", path1, strerror(errno));
1.25 deraadt 1023: err = 1;
1024: }
1.1 djm 1025: break;
1026: case I_LLS:
1027: local_do_ls(cmd);
1028: break;
1029: case I_SHELL:
1030: local_do_shell(cmd);
1031: break;
1032: case I_LUMASK:
1033: umask(n_arg);
1.21 stevesk 1034: printf("Local umask: %03lo\n", n_arg);
1.1 djm 1035: break;
1036: case I_CHMOD:
1037: path1 = make_absolute(path1, *pwd);
1038: attrib_clear(&a);
1039: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1040: a.perm = n_arg;
1.44 djm 1041: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.41 deraadt 1042: for (i = 0; g.gl_pathv[i]; i++) {
1.27 djm 1043: printf("Changing mode on %s\n", g.gl_pathv[i]);
1.51 djm 1044: err = do_setstat(conn, g.gl_pathv[i], &a);
1045: if (err != 0 && err_abort)
1046: break;
1.27 djm 1047: }
1.5 stevesk 1048: break;
1.1 djm 1049: case I_CHOWN:
1.51 djm 1050: case I_CHGRP:
1.1 djm 1051: path1 = make_absolute(path1, *pwd);
1.44 djm 1052: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.41 deraadt 1053: for (i = 0; g.gl_pathv[i]; i++) {
1.51 djm 1054: if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
1055: if (err != 0 && err_abort)
1056: break;
1057: else
1058: continue;
1059: }
1.27 djm 1060: if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
1061: error("Can't get current ownership of "
1062: "remote file \"%s\"", g.gl_pathv[i]);
1.51 djm 1063: if (err != 0 && err_abort)
1064: break;
1065: else
1066: continue;
1.27 djm 1067: }
1068: aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
1.51 djm 1069: if (cmdnum == I_CHOWN) {
1070: printf("Changing owner on %s\n", g.gl_pathv[i]);
1071: aa->uid = n_arg;
1072: } else {
1073: printf("Changing group on %s\n", g.gl_pathv[i]);
1074: aa->gid = n_arg;
1.27 djm 1075: }
1.51 djm 1076: err = do_setstat(conn, g.gl_pathv[i], aa);
1077: if (err != 0 && err_abort)
1078: break;
1.1 djm 1079: }
1080: break;
1081: case I_PWD:
1082: printf("Remote working directory: %s\n", *pwd);
1083: break;
1084: case I_LPWD:
1.51 djm 1085: if (!getcwd(path_buf, sizeof(path_buf))) {
1086: error("Couldn't get local cwd: %s", strerror(errno));
1087: err = -1;
1088: break;
1089: }
1090: printf("Local working directory: %s\n", path_buf);
1.1 djm 1091: break;
1092: case I_QUIT:
1.51 djm 1093: /* Processed below */
1094: break;
1.1 djm 1095: case I_HELP:
1096: help();
1.28 markus 1097: break;
1098: case I_VERSION:
1.47 deraadt 1099: printf("SFTP protocol version %u\n", sftp_proto_version(conn));
1.52 fgsch 1100: break;
1101: case I_PROGRESS:
1102: showprogress = !showprogress;
1103: if (showprogress)
1104: printf("Progress meter enabled\n");
1105: else
1106: printf("Progress meter disabled\n");
1.1 djm 1107: break;
1108: default:
1109: fatal("%d is not implemented", cmdnum);
1110: }
1111:
1.29 djm 1112: if (g.gl_pathc)
1113: globfree(&g);
1.1 djm 1114: if (path1)
1115: xfree(path1);
1116: if (path2)
1117: xfree(path2);
1.25 deraadt 1118:
1.51 djm 1119: /* If an unignored error occurs in batch mode we should abort. */
1120: if (err_abort && err != 0)
1121: return (-1);
1122: else if (cmdnum == I_QUIT)
1123: return (1);
1.25 deraadt 1124:
1.51 djm 1125: return (0);
1.1 djm 1126: }
1127:
1.51 djm 1128: int
1.35 mouring 1129: interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
1.1 djm 1130: {
1131: char *pwd;
1.35 mouring 1132: char *dir = NULL;
1.1 djm 1133: char cmd[2048];
1.44 djm 1134: struct sftp_conn *conn;
1.51 djm 1135: int err;
1.26 djm 1136:
1.44 djm 1137: conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
1138: if (conn == NULL)
1.26 djm 1139: fatal("Couldn't initialise connection to server");
1.1 djm 1140:
1.44 djm 1141: pwd = do_realpath(conn, ".");
1.1 djm 1142: if (pwd == NULL)
1143: fatal("Need cwd");
1144:
1.35 mouring 1145: if (file1 != NULL) {
1146: dir = xstrdup(file1);
1147: dir = make_absolute(dir, pwd);
1148:
1.44 djm 1149: if (remote_is_dir(conn, dir) && file2 == NULL) {
1.35 mouring 1150: printf("Changing to: %s\n", dir);
1151: snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
1.51 djm 1152: if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0)
1153: return (-1);
1.35 mouring 1154: } else {
1155: if (file2 == NULL)
1156: snprintf(cmd, sizeof cmd, "get %s", dir);
1157: else
1158: snprintf(cmd, sizeof cmd, "get %s %s", dir,
1159: file2);
1160:
1.51 djm 1161: err = parse_dispatch_command(conn, cmd, &pwd, 1);
1.45 mpech 1162: xfree(dir);
1.57 markus 1163: xfree(pwd);
1.51 djm 1164: return (err);
1.35 mouring 1165: }
1.45 mpech 1166: xfree(dir);
1.35 mouring 1167: }
1.51 djm 1168:
1.14 stevesk 1169: setvbuf(stdout, NULL, _IOLBF, 0);
1.25 deraadt 1170: setvbuf(infile, NULL, _IOLBF, 0);
1.1 djm 1171:
1.51 djm 1172: err = 0;
1.41 deraadt 1173: for (;;) {
1.1 djm 1174: char *cp;
1175:
1176: printf("sftp> ");
1177:
1178: /* XXX: use libedit */
1.25 deraadt 1179: if (fgets(cmd, sizeof(cmd), infile) == NULL) {
1.1 djm 1180: printf("\n");
1181: break;
1.66 djm 1182: }
1183:
1184: if (batchmode) /* Echo command */
1.25 deraadt 1185: printf("%s", cmd);
1186:
1.1 djm 1187: cp = strrchr(cmd, '\n');
1188: if (cp)
1189: *cp = '\0';
1.25 deraadt 1190:
1.66 djm 1191: err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
1.51 djm 1192: if (err != 0)
1.1 djm 1193: break;
1194: }
1195: xfree(pwd);
1.51 djm 1196:
1197: /* err == 1 signifies normal "quit" exit */
1198: return (err >= 0 ? 0 : -1);
1.1 djm 1199: }
1.51 djm 1200:
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