2 * sftp.c: SFTP generic client code.
15 #define GET_32BIT(cp) \
16 (((unsigned long)(unsigned char)(cp)[0] << 24) | \
17 ((unsigned long)(unsigned char)(cp)[1] << 16) | \
18 ((unsigned long)(unsigned char)(cp)[2] << 8) | \
19 ((unsigned long)(unsigned char)(cp)[3]))
21 #define PUT_32BIT(cp, value) { \
22 (cp)[0] = (unsigned char)((value) >> 24); \
23 (cp)[1] = (unsigned char)((value) >> 16); \
24 (cp)[2] = (unsigned char)((value) >> 8); \
25 (cp)[3] = (unsigned char)(value); }
34 static const char *fxp_error_message;
35 static int fxp_errtype;
37 static void fxp_internal_error(char *msg);
39 /* ----------------------------------------------------------------------
40 * SFTP packet construction functions.
42 static void sftp_pkt_ensure(struct sftp_packet *pkt, int length)
44 if (pkt->maxlen < length) {
45 pkt->maxlen = length + 256;
46 pkt->data = sresize(pkt->data, pkt->maxlen, char);
49 static void sftp_pkt_adddata(struct sftp_packet *pkt, void *data, int len)
52 sftp_pkt_ensure(pkt, pkt->length);
53 memcpy(pkt->data + pkt->length - len, data, len);
55 static void sftp_pkt_addbyte(struct sftp_packet *pkt, unsigned char byte)
57 sftp_pkt_adddata(pkt, &byte, 1);
59 static struct sftp_packet *sftp_pkt_init(int pkt_type)
61 struct sftp_packet *pkt;
62 pkt = snew(struct sftp_packet);
67 sftp_pkt_addbyte(pkt, (unsigned char) pkt_type);
70 static void sftp_pkt_addbool(struct sftp_packet *pkt, unsigned char value)
72 sftp_pkt_adddata(pkt, &value, 1);
74 static void sftp_pkt_adduint32(struct sftp_packet *pkt,
79 sftp_pkt_adddata(pkt, x, 4);
81 static void sftp_pkt_adduint64(struct sftp_packet *pkt, uint64 value)
84 PUT_32BIT(x, value.hi);
85 PUT_32BIT(x + 4, value.lo);
86 sftp_pkt_adddata(pkt, x, 8);
88 static void sftp_pkt_addstring_start(struct sftp_packet *pkt)
90 sftp_pkt_adduint32(pkt, 0);
91 pkt->savedpos = pkt->length;
93 static void sftp_pkt_addstring_str(struct sftp_packet *pkt, char *data)
95 sftp_pkt_adddata(pkt, data, strlen(data));
96 PUT_32BIT(pkt->data + pkt->savedpos - 4, pkt->length - pkt->savedpos);
98 static void sftp_pkt_addstring_data(struct sftp_packet *pkt,
101 sftp_pkt_adddata(pkt, data, len);
102 PUT_32BIT(pkt->data + pkt->savedpos - 4, pkt->length - pkt->savedpos);
104 static void sftp_pkt_addstring(struct sftp_packet *pkt, char *data)
106 sftp_pkt_addstring_start(pkt);
107 sftp_pkt_addstring_str(pkt, data);
109 static void sftp_pkt_addattrs(struct sftp_packet *pkt, struct fxp_attrs attrs)
111 sftp_pkt_adduint32(pkt, attrs.flags);
112 if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
113 sftp_pkt_adduint32(pkt, attrs.size.hi);
114 sftp_pkt_adduint32(pkt, attrs.size.lo);
116 if (attrs.flags & SSH_FILEXFER_ATTR_UIDGID) {
117 sftp_pkt_adduint32(pkt, attrs.uid);
118 sftp_pkt_adduint32(pkt, attrs.gid);
120 if (attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) {
121 sftp_pkt_adduint32(pkt, attrs.permissions);
123 if (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME) {
124 sftp_pkt_adduint32(pkt, attrs.atime);
125 sftp_pkt_adduint32(pkt, attrs.mtime);
127 if (attrs.flags & SSH_FILEXFER_ATTR_EXTENDED) {
129 * We currently don't support sending any extended
135 /* ----------------------------------------------------------------------
136 * SFTP packet decode functions.
139 static unsigned char sftp_pkt_getbyte(struct sftp_packet *pkt)
142 if (pkt->length - pkt->savedpos < 1)
143 return 0; /* arrgh, no way to decline (FIXME?) */
144 value = (unsigned char) pkt->data[pkt->savedpos];
148 static unsigned long sftp_pkt_getuint32(struct sftp_packet *pkt)
151 if (pkt->length - pkt->savedpos < 4)
152 return 0; /* arrgh, no way to decline (FIXME?) */
153 value = GET_32BIT(pkt->data + pkt->savedpos);
157 static void sftp_pkt_getstring(struct sftp_packet *pkt,
158 char **p, int *length)
161 if (pkt->length - pkt->savedpos < 4)
163 *length = GET_32BIT(pkt->data + pkt->savedpos);
165 if (pkt->length - pkt->savedpos < *length)
167 *p = pkt->data + pkt->savedpos;
168 pkt->savedpos += *length;
170 static struct fxp_attrs sftp_pkt_getattrs(struct sftp_packet *pkt)
172 struct fxp_attrs ret;
173 ret.flags = sftp_pkt_getuint32(pkt);
174 if (ret.flags & SSH_FILEXFER_ATTR_SIZE) {
175 unsigned long hi, lo;
176 hi = sftp_pkt_getuint32(pkt);
177 lo = sftp_pkt_getuint32(pkt);
178 ret.size = uint64_make(hi, lo);
180 if (ret.flags & SSH_FILEXFER_ATTR_UIDGID) {
181 ret.uid = sftp_pkt_getuint32(pkt);
182 ret.gid = sftp_pkt_getuint32(pkt);
184 if (ret.flags & SSH_FILEXFER_ATTR_PERMISSIONS) {
185 ret.permissions = sftp_pkt_getuint32(pkt);
187 if (ret.flags & SSH_FILEXFER_ATTR_ACMODTIME) {
188 ret.atime = sftp_pkt_getuint32(pkt);
189 ret.mtime = sftp_pkt_getuint32(pkt);
191 if (ret.flags & SSH_FILEXFER_ATTR_EXTENDED) {
193 count = sftp_pkt_getuint32(pkt);
198 * We should try to analyse these, if we ever find one
201 sftp_pkt_getstring(pkt, &str, &len);
202 sftp_pkt_getstring(pkt, &str, &len);
207 static void sftp_pkt_free(struct sftp_packet *pkt)
214 /* ----------------------------------------------------------------------
215 * Send and receive packet functions.
217 int sftp_send(struct sftp_packet *pkt)
221 PUT_32BIT(x, pkt->length);
222 ret = (sftp_senddata(x, 4) && sftp_senddata(pkt->data, pkt->length));
226 struct sftp_packet *sftp_recv(void)
228 struct sftp_packet *pkt;
231 if (!sftp_recvdata(x, 4))
234 pkt = snew(struct sftp_packet);
236 pkt->length = pkt->maxlen = GET_32BIT(x);
237 pkt->data = snewn(pkt->length, char);
239 if (!sftp_recvdata(pkt->data, pkt->length)) {
244 pkt->type = sftp_pkt_getbyte(pkt);
249 /* ----------------------------------------------------------------------
250 * Request ID allocation and temporary dispatch routines.
253 #define REQUEST_ID_OFFSET 256
255 struct sftp_request {
260 static int sftp_reqcmp(void *av, void *bv)
262 struct sftp_request *a = (struct sftp_request *)av;
263 struct sftp_request *b = (struct sftp_request *)bv;
270 static int sftp_reqfind(void *av, void *bv)
272 unsigned *a = (unsigned *) av;
273 struct sftp_request *b = (struct sftp_request *)bv;
281 static tree234 *sftp_requests;
283 static struct sftp_request *sftp_alloc_request(void)
285 const unsigned CHANNEL_NUMBER_OFFSET = 256;
286 unsigned low, high, mid;
288 struct sftp_request *r;
290 if (sftp_requests == NULL)
291 sftp_requests = newtree234(sftp_reqcmp);
294 * First-fit allocation of request IDs: always pick the lowest
295 * unused one. To do this, binary-search using the counted
296 * B-tree to find the largest ID which is in a contiguous
297 * sequence from the beginning. (Precisely everything in that
298 * sequence must have ID equal to its tree index plus
299 * SEQUENCE_NUMBER_OFFSET.)
301 tsize = count234(sftp_requests);
305 while (high - low > 1) {
306 mid = (high + low) / 2;
307 r = index234(sftp_requests, mid);
308 if (r->id == mid + REQUEST_ID_OFFSET)
309 low = mid; /* this one is fine */
311 high = mid; /* this one is past it */
314 * Now low points to either -1, or the tree index of the
315 * largest ID in the initial sequence.
318 unsigned i = low + 1 + REQUEST_ID_OFFSET;
319 assert(NULL == find234(sftp_requests, &i, sftp_reqfind));
323 * So the request ID we need to create is
324 * low + 1 + REQUEST_ID_OFFSET.
326 r = snew(struct sftp_request);
327 r->id = low + 1 + REQUEST_ID_OFFSET;
329 add234(sftp_requests, r);
333 void sftp_register(struct sftp_request *req)
338 struct sftp_request *sftp_find_request(struct sftp_packet *pktin)
341 struct sftp_request *req;
344 fxp_internal_error("did not receive a valid SFTP packet\n");
348 id = sftp_pkt_getuint32(pktin);
349 req = find234(sftp_requests, &id, sftp_reqfind);
351 if (!req || !req->registered) {
352 fxp_internal_error("request ID mismatch\n");
353 sftp_pkt_free(pktin);
357 del234(sftp_requests, req);
362 /* ----------------------------------------------------------------------
363 * String handling routines.
366 static char *mkstr(char *s, int len)
368 char *p = snewn(len + 1, char);
374 /* ----------------------------------------------------------------------
379 * Deal with (and free) an FXP_STATUS packet. Return 1 if
380 * SSH_FX_OK, 0 if SSH_FX_EOF, and -1 for anything else (error).
381 * Also place the status into fxp_errtype.
383 static int fxp_got_status(struct sftp_packet *pktin)
385 static const char *const messages[] = {
386 /* SSH_FX_OK. The only time we will display a _message_ for this
387 * is if we were expecting something other than FXP_STATUS on
388 * success, so this is actually an error message! */
389 "unexpected OK response",
391 "no such file or directory",
397 "operation unsupported",
400 if (pktin->type != SSH_FXP_STATUS) {
401 fxp_error_message = "expected FXP_STATUS packet";
404 fxp_errtype = sftp_pkt_getuint32(pktin);
405 if (fxp_errtype < 0 ||
406 fxp_errtype >= sizeof(messages) / sizeof(*messages))
407 fxp_error_message = "unknown error code";
409 fxp_error_message = messages[fxp_errtype];
412 if (fxp_errtype == SSH_FX_OK)
414 else if (fxp_errtype == SSH_FX_EOF)
420 static void fxp_internal_error(char *msg)
422 fxp_error_message = msg;
426 const char *fxp_error(void)
428 return fxp_error_message;
431 int fxp_error_type(void)
437 * Perform exchange of init/version packets. Return 0 on failure.
441 struct sftp_packet *pktout, *pktin;
444 pktout = sftp_pkt_init(SSH_FXP_INIT);
445 sftp_pkt_adduint32(pktout, SFTP_PROTO_VERSION);
450 fxp_internal_error("could not connect");
453 if (pktin->type != SSH_FXP_VERSION) {
454 fxp_internal_error("did not receive FXP_VERSION");
455 sftp_pkt_free(pktin);
458 remotever = sftp_pkt_getuint32(pktin);
459 if (remotever > SFTP_PROTO_VERSION) {
461 ("remote protocol is more advanced than we support");
462 sftp_pkt_free(pktin);
466 * In principle, this packet might also contain extension-
467 * string pairs. We should work through them and look for any
468 * we recognise. In practice we don't currently do so because
469 * we know we don't recognise _any_.
471 sftp_pkt_free(pktin);
477 * Canonify a pathname.
479 struct sftp_request *fxp_realpath_send(char *path)
481 struct sftp_request *req = sftp_alloc_request();
482 struct sftp_packet *pktout;
484 pktout = sftp_pkt_init(SSH_FXP_REALPATH);
485 sftp_pkt_adduint32(pktout, req->id);
486 sftp_pkt_addstring_start(pktout);
487 sftp_pkt_addstring_str(pktout, path);
493 char *fxp_realpath_recv(struct sftp_packet *pktin, struct sftp_request *req)
497 if (pktin->type == SSH_FXP_NAME) {
502 count = sftp_pkt_getuint32(pktin);
504 fxp_internal_error("REALPATH returned name count != 1\n");
505 sftp_pkt_free(pktin);
508 sftp_pkt_getstring(pktin, &path, &len);
510 fxp_internal_error("REALPATH returned malformed FXP_NAME\n");
511 sftp_pkt_free(pktin);
514 path = mkstr(path, len);
515 sftp_pkt_free(pktin);
518 fxp_got_status(pktin);
519 sftp_pkt_free(pktin);
527 struct sftp_request *fxp_open_send(char *path, int type)
529 struct sftp_request *req = sftp_alloc_request();
530 struct sftp_packet *pktout;
532 pktout = sftp_pkt_init(SSH_FXP_OPEN);
533 sftp_pkt_adduint32(pktout, req->id);
534 sftp_pkt_addstring(pktout, path);
535 sftp_pkt_adduint32(pktout, type);
536 sftp_pkt_adduint32(pktout, 0); /* (FIXME) empty ATTRS structure */
542 struct fxp_handle *fxp_open_recv(struct sftp_packet *pktin,
543 struct sftp_request *req)
547 if (pktin->type == SSH_FXP_HANDLE) {
549 struct fxp_handle *handle;
552 sftp_pkt_getstring(pktin, &hstring, &len);
554 fxp_internal_error("OPEN returned malformed FXP_HANDLE\n");
555 sftp_pkt_free(pktin);
558 handle = snew(struct fxp_handle);
559 handle->hstring = mkstr(hstring, len);
561 sftp_pkt_free(pktin);
564 fxp_got_status(pktin);
565 sftp_pkt_free(pktin);
573 struct sftp_request *fxp_opendir_send(char *path)
575 struct sftp_request *req = sftp_alloc_request();
576 struct sftp_packet *pktout;
578 pktout = sftp_pkt_init(SSH_FXP_OPENDIR);
579 sftp_pkt_adduint32(pktout, req->id);
580 sftp_pkt_addstring(pktout, path);
586 struct fxp_handle *fxp_opendir_recv(struct sftp_packet *pktin,
587 struct sftp_request *req)
590 if (pktin->type == SSH_FXP_HANDLE) {
592 struct fxp_handle *handle;
595 sftp_pkt_getstring(pktin, &hstring, &len);
597 fxp_internal_error("OPENDIR returned malformed FXP_HANDLE\n");
598 sftp_pkt_free(pktin);
601 handle = snew(struct fxp_handle);
602 handle->hstring = mkstr(hstring, len);
604 sftp_pkt_free(pktin);
607 fxp_got_status(pktin);
608 sftp_pkt_free(pktin);
616 struct sftp_request *fxp_close_send(struct fxp_handle *handle)
618 struct sftp_request *req = sftp_alloc_request();
619 struct sftp_packet *pktout;
621 pktout = sftp_pkt_init(SSH_FXP_CLOSE);
622 sftp_pkt_adduint32(pktout, req->id);
623 sftp_pkt_addstring_start(pktout);
624 sftp_pkt_addstring_data(pktout, handle->hstring, handle->hlen);
627 sfree(handle->hstring);
633 void fxp_close_recv(struct sftp_packet *pktin, struct sftp_request *req)
636 fxp_got_status(pktin);
637 sftp_pkt_free(pktin);
640 struct sftp_request *fxp_mkdir_send(char *path)
642 struct sftp_request *req = sftp_alloc_request();
643 struct sftp_packet *pktout;
645 pktout = sftp_pkt_init(SSH_FXP_MKDIR);
646 sftp_pkt_adduint32(pktout, req->id);
647 sftp_pkt_addstring(pktout, path);
648 sftp_pkt_adduint32(pktout, 0); /* (FIXME) empty ATTRS structure */
654 int fxp_mkdir_recv(struct sftp_packet *pktin, struct sftp_request *req)
658 id = fxp_got_status(pktin);
659 sftp_pkt_free(pktin);
666 struct sftp_request *fxp_rmdir_send(char *path)
668 struct sftp_request *req = sftp_alloc_request();
669 struct sftp_packet *pktout;
671 pktout = sftp_pkt_init(SSH_FXP_RMDIR);
672 sftp_pkt_adduint32(pktout, req->id);
673 sftp_pkt_addstring(pktout, path);
679 int fxp_rmdir_recv(struct sftp_packet *pktin, struct sftp_request *req)
683 id = fxp_got_status(pktin);
684 sftp_pkt_free(pktin);
691 struct sftp_request *fxp_remove_send(char *fname)
693 struct sftp_request *req = sftp_alloc_request();
694 struct sftp_packet *pktout;
696 pktout = sftp_pkt_init(SSH_FXP_REMOVE);
697 sftp_pkt_adduint32(pktout, req->id);
698 sftp_pkt_addstring(pktout, fname);
704 int fxp_remove_recv(struct sftp_packet *pktin, struct sftp_request *req)
708 id = fxp_got_status(pktin);
709 sftp_pkt_free(pktin);
716 struct sftp_request *fxp_rename_send(char *srcfname, char *dstfname)
718 struct sftp_request *req = sftp_alloc_request();
719 struct sftp_packet *pktout;
721 pktout = sftp_pkt_init(SSH_FXP_RENAME);
722 sftp_pkt_adduint32(pktout, req->id);
723 sftp_pkt_addstring(pktout, srcfname);
724 sftp_pkt_addstring(pktout, dstfname);
730 int fxp_rename_recv(struct sftp_packet *pktin, struct sftp_request *req)
734 id = fxp_got_status(pktin);
735 sftp_pkt_free(pktin);
743 * Retrieve the attributes of a file. We have fxp_stat which works
744 * on filenames, and fxp_fstat which works on open file handles.
746 struct sftp_request *fxp_stat_send(char *fname)
748 struct sftp_request *req = sftp_alloc_request();
749 struct sftp_packet *pktout;
751 pktout = sftp_pkt_init(SSH_FXP_STAT);
752 sftp_pkt_adduint32(pktout, req->id);
753 sftp_pkt_addstring(pktout, fname);
759 int fxp_stat_recv(struct sftp_packet *pktin, struct sftp_request *req,
760 struct fxp_attrs *attrs)
763 if (pktin->type == SSH_FXP_ATTRS) {
764 *attrs = sftp_pkt_getattrs(pktin);
765 sftp_pkt_free(pktin);
768 fxp_got_status(pktin);
769 sftp_pkt_free(pktin);
774 struct sftp_request *fxp_fstat_send(struct fxp_handle *handle)
776 struct sftp_request *req = sftp_alloc_request();
777 struct sftp_packet *pktout;
779 pktout = sftp_pkt_init(SSH_FXP_FSTAT);
780 sftp_pkt_adduint32(pktout, req->id);
781 sftp_pkt_addstring_start(pktout);
782 sftp_pkt_addstring_data(pktout, handle->hstring, handle->hlen);
788 int fxp_fstat_recv(struct sftp_packet *pktin, struct sftp_request *req,
789 struct fxp_attrs *attrs)
792 if (pktin->type == SSH_FXP_ATTRS) {
793 *attrs = sftp_pkt_getattrs(pktin);
794 sftp_pkt_free(pktin);
797 fxp_got_status(pktin);
798 sftp_pkt_free(pktin);
804 * Set the attributes of a file.
806 struct sftp_request *fxp_setstat_send(char *fname, struct fxp_attrs attrs)
808 struct sftp_request *req = sftp_alloc_request();
809 struct sftp_packet *pktout;
811 pktout = sftp_pkt_init(SSH_FXP_SETSTAT);
812 sftp_pkt_adduint32(pktout, req->id);
813 sftp_pkt_addstring(pktout, fname);
814 sftp_pkt_addattrs(pktout, attrs);
820 int fxp_setstat_recv(struct sftp_packet *pktin, struct sftp_request *req)
824 id = fxp_got_status(pktin);
825 sftp_pkt_free(pktin);
832 struct sftp_request *fxp_fsetstat_send(struct fxp_handle *handle,
833 struct fxp_attrs attrs)
835 struct sftp_request *req = sftp_alloc_request();
836 struct sftp_packet *pktout;
838 pktout = sftp_pkt_init(SSH_FXP_FSETSTAT);
839 sftp_pkt_adduint32(pktout, req->id);
840 sftp_pkt_addstring_start(pktout);
841 sftp_pkt_addstring_data(pktout, handle->hstring, handle->hlen);
842 sftp_pkt_addattrs(pktout, attrs);
848 int fxp_fsetstat_recv(struct sftp_packet *pktin, struct sftp_request *req)
852 id = fxp_got_status(pktin);
853 sftp_pkt_free(pktin);
861 * Read from a file. Returns the number of bytes read, or -1 on an
862 * error, or possibly 0 if EOF. (I'm not entirely sure whether it
863 * will return 0 on EOF, or return -1 and store SSH_FX_EOF in the
864 * error indicator. It might even depend on the SFTP server.)
866 struct sftp_request *fxp_read_send(struct fxp_handle *handle,
867 uint64 offset, int len)
869 struct sftp_request *req = sftp_alloc_request();
870 struct sftp_packet *pktout;
872 pktout = sftp_pkt_init(SSH_FXP_READ);
873 sftp_pkt_adduint32(pktout, req->id);
874 sftp_pkt_addstring_start(pktout);
875 sftp_pkt_addstring_data(pktout, handle->hstring, handle->hlen);
876 sftp_pkt_adduint64(pktout, offset);
877 sftp_pkt_adduint32(pktout, len);
883 int fxp_read_recv(struct sftp_packet *pktin, struct sftp_request *req,
884 char *buffer, int len)
887 if (pktin->type == SSH_FXP_DATA) {
891 sftp_pkt_getstring(pktin, &str, &rlen);
893 if (rlen > len || rlen < 0) {
894 fxp_internal_error("READ returned more bytes than requested");
895 sftp_pkt_free(pktin);
899 memcpy(buffer, str, rlen);
900 sftp_pkt_free(pktin);
903 fxp_got_status(pktin);
904 sftp_pkt_free(pktin);
910 * Read from a directory.
912 struct sftp_request *fxp_readdir_send(struct fxp_handle *handle)
914 struct sftp_request *req = sftp_alloc_request();
915 struct sftp_packet *pktout;
917 pktout = sftp_pkt_init(SSH_FXP_READDIR);
918 sftp_pkt_adduint32(pktout, req->id);
919 sftp_pkt_addstring_start(pktout);
920 sftp_pkt_addstring_data(pktout, handle->hstring, handle->hlen);
926 struct fxp_names *fxp_readdir_recv(struct sftp_packet *pktin,
927 struct sftp_request *req)
930 if (pktin->type == SSH_FXP_NAME) {
931 struct fxp_names *ret;
933 ret = snew(struct fxp_names);
934 ret->nnames = sftp_pkt_getuint32(pktin);
935 ret->names = snewn(ret->nnames, struct fxp_name);
936 for (i = 0; i < ret->nnames; i++) {
939 sftp_pkt_getstring(pktin, &str, &len);
940 ret->names[i].filename = mkstr(str, len);
941 sftp_pkt_getstring(pktin, &str, &len);
942 ret->names[i].longname = mkstr(str, len);
943 ret->names[i].attrs = sftp_pkt_getattrs(pktin);
945 sftp_pkt_free(pktin);
948 fxp_got_status(pktin);
949 sftp_pkt_free(pktin);
955 * Write to a file. Returns 0 on error, 1 on OK.
957 struct sftp_request *fxp_write_send(struct fxp_handle *handle,
958 char *buffer, uint64 offset, int len)
960 struct sftp_request *req = sftp_alloc_request();
961 struct sftp_packet *pktout;
963 pktout = sftp_pkt_init(SSH_FXP_WRITE);
964 sftp_pkt_adduint32(pktout, req->id);
965 sftp_pkt_addstring_start(pktout);
966 sftp_pkt_addstring_data(pktout, handle->hstring, handle->hlen);
967 sftp_pkt_adduint64(pktout, offset);
968 sftp_pkt_addstring_start(pktout);
969 sftp_pkt_addstring_data(pktout, buffer, len);
975 int fxp_write_recv(struct sftp_packet *pktin, struct sftp_request *req)
978 fxp_got_status(pktin);
979 sftp_pkt_free(pktin);
980 return fxp_errtype == SSH_FX_OK;
984 * Free up an fxp_names structure.
986 void fxp_free_names(struct fxp_names *names)
990 for (i = 0; i < names->nnames; i++) {
991 sfree(names->names[i].filename);
992 sfree(names->names[i].longname);
999 * Duplicate an fxp_name structure.
1001 struct fxp_name *fxp_dup_name(struct fxp_name *name)
1003 struct fxp_name *ret;
1004 ret = snew(struct fxp_name);
1005 ret->filename = dupstr(name->filename);
1006 ret->longname = dupstr(name->longname);
1007 ret->attrs = name->attrs; /* structure copy */
1012 * Free up an fxp_name structure.
1014 void fxp_free_name(struct fxp_name *name)
1016 sfree(name->filename);
1017 sfree(name->longname);