2 * sftp.c: SFTP generic client code.
14 #define GET_32BIT(cp) \
15 (((unsigned long)(unsigned char)(cp)[0] << 24) | \
16 ((unsigned long)(unsigned char)(cp)[1] << 16) | \
17 ((unsigned long)(unsigned char)(cp)[2] << 8) | \
18 ((unsigned long)(unsigned char)(cp)[3]))
20 #define PUT_32BIT(cp, value) { \
21 (cp)[0] = (unsigned char)((value) >> 24); \
22 (cp)[1] = (unsigned char)((value) >> 16); \
23 (cp)[2] = (unsigned char)((value) >> 8); \
24 (cp)[3] = (unsigned char)(value); }
33 static const char *fxp_error_message
;
34 static int fxp_errtype
;
36 /* ----------------------------------------------------------------------
37 * SFTP packet construction functions.
39 static void sftp_pkt_ensure(struct sftp_packet
*pkt
, int length
)
41 if (pkt
->maxlen
< length
) {
42 pkt
->maxlen
= length
+ 256;
43 pkt
->data
= sresize(pkt
->data
, pkt
->maxlen
, char);
46 static void sftp_pkt_adddata(struct sftp_packet
*pkt
, void *data
, int len
)
49 sftp_pkt_ensure(pkt
, pkt
->length
);
50 memcpy(pkt
->data
+ pkt
->length
- len
, data
, len
);
52 static void sftp_pkt_addbyte(struct sftp_packet
*pkt
, unsigned char byte
)
54 sftp_pkt_adddata(pkt
, &byte
, 1);
56 static struct sftp_packet
*sftp_pkt_init(int pkt_type
)
58 struct sftp_packet
*pkt
;
59 pkt
= snew(struct sftp_packet
);
64 sftp_pkt_addbyte(pkt
, (unsigned char) pkt_type
);
67 static void sftp_pkt_addbool(struct sftp_packet
*pkt
, unsigned char value
)
69 sftp_pkt_adddata(pkt
, &value
, 1);
71 static void sftp_pkt_adduint32(struct sftp_packet
*pkt
,
76 sftp_pkt_adddata(pkt
, x
, 4);
78 static void sftp_pkt_adduint64(struct sftp_packet
*pkt
, uint64 value
)
81 PUT_32BIT(x
, value
.hi
);
82 PUT_32BIT(x
+ 4, value
.lo
);
83 sftp_pkt_adddata(pkt
, x
, 8);
85 static void sftp_pkt_addstring_start(struct sftp_packet
*pkt
)
87 sftp_pkt_adduint32(pkt
, 0);
88 pkt
->savedpos
= pkt
->length
;
90 static void sftp_pkt_addstring_str(struct sftp_packet
*pkt
, char *data
)
92 sftp_pkt_adddata(pkt
, data
, strlen(data
));
93 PUT_32BIT(pkt
->data
+ pkt
->savedpos
- 4, pkt
->length
- pkt
->savedpos
);
95 static void sftp_pkt_addstring_data(struct sftp_packet
*pkt
,
98 sftp_pkt_adddata(pkt
, data
, len
);
99 PUT_32BIT(pkt
->data
+ pkt
->savedpos
- 4, pkt
->length
- pkt
->savedpos
);
101 static void sftp_pkt_addstring(struct sftp_packet
*pkt
, char *data
)
103 sftp_pkt_addstring_start(pkt
);
104 sftp_pkt_addstring_str(pkt
, data
);
106 static void sftp_pkt_addattrs(struct sftp_packet
*pkt
, struct fxp_attrs attrs
)
108 sftp_pkt_adduint32(pkt
, attrs
.flags
);
109 if (attrs
.flags
& SSH_FILEXFER_ATTR_SIZE
) {
110 sftp_pkt_adduint32(pkt
, attrs
.size
.hi
);
111 sftp_pkt_adduint32(pkt
, attrs
.size
.lo
);
113 if (attrs
.flags
& SSH_FILEXFER_ATTR_UIDGID
) {
114 sftp_pkt_adduint32(pkt
, attrs
.uid
);
115 sftp_pkt_adduint32(pkt
, attrs
.gid
);
117 if (attrs
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
) {
118 sftp_pkt_adduint32(pkt
, attrs
.permissions
);
120 if (attrs
.flags
& SSH_FILEXFER_ATTR_ACMODTIME
) {
121 sftp_pkt_adduint32(pkt
, attrs
.atime
);
122 sftp_pkt_adduint32(pkt
, attrs
.mtime
);
124 if (attrs
.flags
& SSH_FILEXFER_ATTR_EXTENDED
) {
126 * We currently don't support sending any extended
132 /* ----------------------------------------------------------------------
133 * SFTP packet decode functions.
136 static unsigned char sftp_pkt_getbyte(struct sftp_packet
*pkt
)
139 if (pkt
->length
- pkt
->savedpos
< 1)
140 return 0; /* arrgh, no way to decline (FIXME?) */
141 value
= (unsigned char) pkt
->data
[pkt
->savedpos
];
145 static unsigned long sftp_pkt_getuint32(struct sftp_packet
*pkt
)
148 if (pkt
->length
- pkt
->savedpos
< 4)
149 return 0; /* arrgh, no way to decline (FIXME?) */
150 value
= GET_32BIT(pkt
->data
+ pkt
->savedpos
);
154 static void sftp_pkt_getstring(struct sftp_packet
*pkt
,
155 char **p
, int *length
)
158 if (pkt
->length
- pkt
->savedpos
< 4)
160 *length
= GET_32BIT(pkt
->data
+ pkt
->savedpos
);
162 if (pkt
->length
- pkt
->savedpos
< *length
)
164 *p
= pkt
->data
+ pkt
->savedpos
;
165 pkt
->savedpos
+= *length
;
167 static struct fxp_attrs
sftp_pkt_getattrs(struct sftp_packet
*pkt
)
169 struct fxp_attrs ret
;
170 ret
.flags
= sftp_pkt_getuint32(pkt
);
171 if (ret
.flags
& SSH_FILEXFER_ATTR_SIZE
) {
172 unsigned long hi
, lo
;
173 hi
= sftp_pkt_getuint32(pkt
);
174 lo
= sftp_pkt_getuint32(pkt
);
175 ret
.size
= uint64_make(hi
, lo
);
177 if (ret
.flags
& SSH_FILEXFER_ATTR_UIDGID
) {
178 ret
.uid
= sftp_pkt_getuint32(pkt
);
179 ret
.gid
= sftp_pkt_getuint32(pkt
);
181 if (ret
.flags
& SSH_FILEXFER_ATTR_PERMISSIONS
) {
182 ret
.permissions
= sftp_pkt_getuint32(pkt
);
184 if (ret
.flags
& SSH_FILEXFER_ATTR_ACMODTIME
) {
185 ret
.atime
= sftp_pkt_getuint32(pkt
);
186 ret
.mtime
= sftp_pkt_getuint32(pkt
);
188 if (ret
.flags
& SSH_FILEXFER_ATTR_EXTENDED
) {
190 count
= sftp_pkt_getuint32(pkt
);
195 * We should try to analyse these, if we ever find one
198 sftp_pkt_getstring(pkt
, &str
, &len
);
199 sftp_pkt_getstring(pkt
, &str
, &len
);
204 static void sftp_pkt_free(struct sftp_packet
*pkt
)
211 /* ----------------------------------------------------------------------
212 * Send and receive packet functions.
214 int sftp_send(struct sftp_packet
*pkt
)
218 PUT_32BIT(x
, pkt
->length
);
219 ret
= (sftp_senddata(x
, 4) && sftp_senddata(pkt
->data
, pkt
->length
));
223 struct sftp_packet
*sftp_recv(void)
225 struct sftp_packet
*pkt
;
228 if (!sftp_recvdata(x
, 4))
231 pkt
= snew(struct sftp_packet
);
233 pkt
->length
= pkt
->maxlen
= GET_32BIT(x
);
234 pkt
->data
= snewn(pkt
->length
, char);
236 if (!sftp_recvdata(pkt
->data
, pkt
->length
)) {
241 pkt
->type
= sftp_pkt_getbyte(pkt
);
246 /* ----------------------------------------------------------------------
247 * String handling routines.
250 static char *mkstr(char *s
, int len
)
252 char *p
= snewn(len
+ 1, char);
258 /* ----------------------------------------------------------------------
263 * Deal with (and free) an FXP_STATUS packet. Return 1 if
264 * SSH_FX_OK, 0 if SSH_FX_EOF, and -1 for anything else (error).
265 * Also place the status into fxp_errtype.
267 static int fxp_got_status(struct sftp_packet
*pktin
)
269 static const char *const messages
[] = {
270 /* SSH_FX_OK. The only time we will display a _message_ for this
271 * is if we were expecting something other than FXP_STATUS on
272 * success, so this is actually an error message! */
273 "unexpected OK response",
275 "no such file or directory",
281 "operation unsupported",
284 if (pktin
->type
!= SSH_FXP_STATUS
) {
285 fxp_error_message
= "expected FXP_STATUS packet";
288 fxp_errtype
= sftp_pkt_getuint32(pktin
);
289 if (fxp_errtype
< 0 ||
290 fxp_errtype
>= sizeof(messages
) / sizeof(*messages
))
291 fxp_error_message
= "unknown error code";
293 fxp_error_message
= messages
[fxp_errtype
];
296 if (fxp_errtype
== SSH_FX_OK
)
298 else if (fxp_errtype
== SSH_FX_EOF
)
304 static void fxp_internal_error(char *msg
)
306 fxp_error_message
= msg
;
310 const char *fxp_error(void)
312 return fxp_error_message
;
315 int fxp_error_type(void)
321 * Perform exchange of init/version packets. Return 0 on failure.
325 struct sftp_packet
*pktout
, *pktin
;
328 pktout
= sftp_pkt_init(SSH_FXP_INIT
);
329 sftp_pkt_adduint32(pktout
, SFTP_PROTO_VERSION
);
334 fxp_internal_error("could not connect");
337 if (pktin
->type
!= SSH_FXP_VERSION
) {
338 fxp_internal_error("did not receive FXP_VERSION");
339 sftp_pkt_free(pktin
);
342 remotever
= sftp_pkt_getuint32(pktin
);
343 if (remotever
> SFTP_PROTO_VERSION
) {
345 ("remote protocol is more advanced than we support");
346 sftp_pkt_free(pktin
);
350 * In principle, this packet might also contain extension-
351 * string pairs. We should work through them and look for any
352 * we recognise. In practice we don't currently do so because
353 * we know we don't recognise _any_.
355 sftp_pkt_free(pktin
);
361 * Canonify a pathname.
363 char *fxp_realpath(char *path
)
365 struct sftp_packet
*pktin
, *pktout
;
368 pktout
= sftp_pkt_init(SSH_FXP_REALPATH
);
369 sftp_pkt_adduint32(pktout
, 0x123); /* request id */
370 sftp_pkt_addstring_start(pktout
);
371 sftp_pkt_addstring_str(pktout
, path
);
375 fxp_internal_error("did not receive a valid SFTP packet\n");
378 id
= sftp_pkt_getuint32(pktin
);
380 fxp_internal_error("request ID mismatch\n");
381 sftp_pkt_free(pktin
);
384 if (pktin
->type
== SSH_FXP_NAME
) {
389 count
= sftp_pkt_getuint32(pktin
);
391 fxp_internal_error("REALPATH returned name count != 1\n");
392 sftp_pkt_free(pktin
);
395 sftp_pkt_getstring(pktin
, &path
, &len
);
397 fxp_internal_error("REALPATH returned malformed FXP_NAME\n");
398 sftp_pkt_free(pktin
);
401 path
= mkstr(path
, len
);
402 sftp_pkt_free(pktin
);
405 fxp_got_status(pktin
);
406 sftp_pkt_free(pktin
);
414 struct fxp_handle
*fxp_open(char *path
, int type
)
416 struct sftp_packet
*pktin
, *pktout
;
419 pktout
= sftp_pkt_init(SSH_FXP_OPEN
);
420 sftp_pkt_adduint32(pktout
, 0x567); /* request id */
421 sftp_pkt_addstring(pktout
, path
);
422 sftp_pkt_adduint32(pktout
, type
);
423 sftp_pkt_adduint32(pktout
, 0); /* (FIXME) empty ATTRS structure */
427 fxp_internal_error("did not receive a valid SFTP packet\n");
430 id
= sftp_pkt_getuint32(pktin
);
432 fxp_internal_error("request ID mismatch\n");
433 sftp_pkt_free(pktin
);
436 if (pktin
->type
== SSH_FXP_HANDLE
) {
438 struct fxp_handle
*handle
;
441 sftp_pkt_getstring(pktin
, &hstring
, &len
);
443 fxp_internal_error("OPEN returned malformed FXP_HANDLE\n");
444 sftp_pkt_free(pktin
);
447 handle
= snew(struct fxp_handle
);
448 handle
->hstring
= mkstr(hstring
, len
);
450 sftp_pkt_free(pktin
);
453 fxp_got_status(pktin
);
454 sftp_pkt_free(pktin
);
462 struct fxp_handle
*fxp_opendir(char *path
)
464 struct sftp_packet
*pktin
, *pktout
;
467 pktout
= sftp_pkt_init(SSH_FXP_OPENDIR
);
468 sftp_pkt_adduint32(pktout
, 0x456); /* request id */
469 sftp_pkt_addstring(pktout
, path
);
473 fxp_internal_error("did not receive a valid SFTP packet\n");
476 id
= sftp_pkt_getuint32(pktin
);
478 fxp_internal_error("request ID mismatch\n");
479 sftp_pkt_free(pktin
);
482 if (pktin
->type
== SSH_FXP_HANDLE
) {
484 struct fxp_handle
*handle
;
487 sftp_pkt_getstring(pktin
, &hstring
, &len
);
489 fxp_internal_error("OPENDIR returned malformed FXP_HANDLE\n");
490 sftp_pkt_free(pktin
);
493 handle
= snew(struct fxp_handle
);
494 handle
->hstring
= mkstr(hstring
, len
);
496 sftp_pkt_free(pktin
);
499 fxp_got_status(pktin
);
500 sftp_pkt_free(pktin
);
508 void fxp_close(struct fxp_handle
*handle
)
510 struct sftp_packet
*pktin
, *pktout
;
513 pktout
= sftp_pkt_init(SSH_FXP_CLOSE
);
514 sftp_pkt_adduint32(pktout
, 0x789); /* request id */
515 sftp_pkt_addstring_start(pktout
);
516 sftp_pkt_addstring_data(pktout
, handle
->hstring
, handle
->hlen
);
520 fxp_internal_error("did not receive a valid SFTP packet\n");
523 id
= sftp_pkt_getuint32(pktin
);
525 fxp_internal_error("request ID mismatch\n");
526 sftp_pkt_free(pktin
);
529 fxp_got_status(pktin
);
530 sftp_pkt_free(pktin
);
531 sfree(handle
->hstring
);
535 int fxp_mkdir(char *path
)
537 struct sftp_packet
*pktin
, *pktout
;
540 pktout
= sftp_pkt_init(SSH_FXP_MKDIR
);
541 sftp_pkt_adduint32(pktout
, 0x234); /* request id */
542 sftp_pkt_addstring(pktout
, path
);
543 sftp_pkt_adduint32(pktout
, 0); /* (FIXME) empty ATTRS structure */
547 fxp_internal_error("did not receive a valid SFTP packet\n");
550 id
= sftp_pkt_getuint32(pktin
);
552 fxp_internal_error("request ID mismatch\n");
553 sftp_pkt_free(pktin
);
556 id
= fxp_got_status(pktin
);
557 sftp_pkt_free(pktin
);
564 int fxp_rmdir(char *path
)
566 struct sftp_packet
*pktin
, *pktout
;
569 pktout
= sftp_pkt_init(SSH_FXP_RMDIR
);
570 sftp_pkt_adduint32(pktout
, 0x345); /* request id */
571 sftp_pkt_addstring(pktout
, path
);
575 fxp_internal_error("did not receive a valid SFTP packet\n");
578 id
= sftp_pkt_getuint32(pktin
);
580 fxp_internal_error("request ID mismatch\n");
581 sftp_pkt_free(pktin
);
584 id
= fxp_got_status(pktin
);
585 sftp_pkt_free(pktin
);
592 int fxp_remove(char *fname
)
594 struct sftp_packet
*pktin
, *pktout
;
597 pktout
= sftp_pkt_init(SSH_FXP_REMOVE
);
598 sftp_pkt_adduint32(pktout
, 0x678); /* request id */
599 sftp_pkt_addstring(pktout
, fname
);
603 fxp_internal_error("did not receive a valid SFTP packet\n");
606 id
= sftp_pkt_getuint32(pktin
);
608 fxp_internal_error("request ID mismatch\n");
609 sftp_pkt_free(pktin
);
612 id
= fxp_got_status(pktin
);
613 sftp_pkt_free(pktin
);
620 int fxp_rename(char *srcfname
, char *dstfname
)
622 struct sftp_packet
*pktin
, *pktout
;
625 pktout
= sftp_pkt_init(SSH_FXP_RENAME
);
626 sftp_pkt_adduint32(pktout
, 0x678); /* request id */
627 sftp_pkt_addstring(pktout
, srcfname
);
628 sftp_pkt_addstring(pktout
, dstfname
);
632 fxp_internal_error("did not receive a valid SFTP packet\n");
635 id
= sftp_pkt_getuint32(pktin
);
637 fxp_internal_error("request ID mismatch\n");
638 sftp_pkt_free(pktin
);
641 id
= fxp_got_status(pktin
);
642 sftp_pkt_free(pktin
);
650 * Retrieve the attributes of a file. We have fxp_stat which works
651 * on filenames, and fxp_fstat which works on open file handles.
653 int fxp_stat(char *fname
, struct fxp_attrs
*attrs
)
655 struct sftp_packet
*pktin
, *pktout
;
658 pktout
= sftp_pkt_init(SSH_FXP_STAT
);
659 sftp_pkt_adduint32(pktout
, 0x678); /* request id */
660 sftp_pkt_addstring(pktout
, fname
);
664 fxp_internal_error("did not receive a valid SFTP packet\n");
667 id
= sftp_pkt_getuint32(pktin
);
669 fxp_internal_error("request ID mismatch\n");
670 sftp_pkt_free(pktin
);
674 if (pktin
->type
== SSH_FXP_ATTRS
) {
675 *attrs
= sftp_pkt_getattrs(pktin
);
676 sftp_pkt_free(pktin
);
679 fxp_got_status(pktin
);
680 sftp_pkt_free(pktin
);
685 int fxp_fstat(struct fxp_handle
*handle
, struct fxp_attrs
*attrs
)
687 struct sftp_packet
*pktin
, *pktout
;
690 pktout
= sftp_pkt_init(SSH_FXP_FSTAT
);
691 sftp_pkt_adduint32(pktout
, 0x678); /* request id */
692 sftp_pkt_addstring_start(pktout
);
693 sftp_pkt_addstring_data(pktout
, handle
->hstring
, handle
->hlen
);
697 fxp_internal_error("did not receive a valid SFTP packet\n");
700 id
= sftp_pkt_getuint32(pktin
);
702 fxp_internal_error("request ID mismatch\n");
703 sftp_pkt_free(pktin
);
707 if (pktin
->type
== SSH_FXP_ATTRS
) {
708 *attrs
= sftp_pkt_getattrs(pktin
);
709 sftp_pkt_free(pktin
);
712 fxp_got_status(pktin
);
713 sftp_pkt_free(pktin
);
719 * Set the attributes of a file.
721 int fxp_setstat(char *fname
, struct fxp_attrs attrs
)
723 struct sftp_packet
*pktin
, *pktout
;
726 pktout
= sftp_pkt_init(SSH_FXP_SETSTAT
);
727 sftp_pkt_adduint32(pktout
, 0x678); /* request id */
728 sftp_pkt_addstring(pktout
, fname
);
729 sftp_pkt_addattrs(pktout
, attrs
);
733 fxp_internal_error("did not receive a valid SFTP packet\n");
736 id
= sftp_pkt_getuint32(pktin
);
738 fxp_internal_error("request ID mismatch\n");
739 sftp_pkt_free(pktin
);
742 id
= fxp_got_status(pktin
);
743 sftp_pkt_free(pktin
);
749 int fxp_fsetstat(struct fxp_handle
*handle
, struct fxp_attrs attrs
)
751 struct sftp_packet
*pktin
, *pktout
;
754 pktout
= sftp_pkt_init(SSH_FXP_FSETSTAT
);
755 sftp_pkt_adduint32(pktout
, 0x678); /* request id */
756 sftp_pkt_addstring_start(pktout
);
757 sftp_pkt_addstring_data(pktout
, handle
->hstring
, handle
->hlen
);
758 sftp_pkt_addattrs(pktout
, attrs
);
762 fxp_internal_error("did not receive a valid SFTP packet\n");
765 id
= sftp_pkt_getuint32(pktin
);
767 fxp_internal_error("request ID mismatch\n");
768 sftp_pkt_free(pktin
);
771 id
= fxp_got_status(pktin
);
772 sftp_pkt_free(pktin
);
780 * Read from a file. Returns the number of bytes read, or -1 on an
781 * error, or possibly 0 if EOF. (I'm not entirely sure whether it
782 * will return 0 on EOF, or return -1 and store SSH_FX_EOF in the
783 * error indicator. It might even depend on the SFTP server.)
785 int fxp_read(struct fxp_handle
*handle
, char *buffer
, uint64 offset
,
788 struct sftp_packet
*pktin
, *pktout
;
791 pktout
= sftp_pkt_init(SSH_FXP_READ
);
792 sftp_pkt_adduint32(pktout
, 0xBCD); /* request id */
793 sftp_pkt_addstring_start(pktout
);
794 sftp_pkt_addstring_data(pktout
, handle
->hstring
, handle
->hlen
);
795 sftp_pkt_adduint64(pktout
, offset
);
796 sftp_pkt_adduint32(pktout
, len
);
800 fxp_internal_error("did not receive a valid SFTP packet\n");
803 id
= sftp_pkt_getuint32(pktin
);
805 fxp_internal_error("request ID mismatch");
806 sftp_pkt_free(pktin
);
809 if (pktin
->type
== SSH_FXP_DATA
) {
813 sftp_pkt_getstring(pktin
, &str
, &rlen
);
815 if (rlen
> len
|| rlen
< 0) {
816 fxp_internal_error("READ returned more bytes than requested");
817 sftp_pkt_free(pktin
);
821 memcpy(buffer
, str
, rlen
);
822 sftp_pkt_free(pktin
);
825 fxp_got_status(pktin
);
826 sftp_pkt_free(pktin
);
832 * Read from a directory.
834 struct fxp_names
*fxp_readdir(struct fxp_handle
*handle
)
836 struct sftp_packet
*pktin
, *pktout
;
839 pktout
= sftp_pkt_init(SSH_FXP_READDIR
);
840 sftp_pkt_adduint32(pktout
, 0xABC); /* request id */
841 sftp_pkt_addstring_start(pktout
);
842 sftp_pkt_addstring_data(pktout
, handle
->hstring
, handle
->hlen
);
846 fxp_internal_error("did not receive a valid SFTP packet\n");
849 id
= sftp_pkt_getuint32(pktin
);
851 fxp_internal_error("request ID mismatch\n");
852 sftp_pkt_free(pktin
);
855 if (pktin
->type
== SSH_FXP_NAME
) {
856 struct fxp_names
*ret
;
858 ret
= snew(struct fxp_names
);
859 ret
->nnames
= sftp_pkt_getuint32(pktin
);
860 ret
->names
= snewn(ret
->nnames
, struct fxp_name
);
861 for (i
= 0; i
< ret
->nnames
; i
++) {
864 sftp_pkt_getstring(pktin
, &str
, &len
);
865 ret
->names
[i
].filename
= mkstr(str
, len
);
866 sftp_pkt_getstring(pktin
, &str
, &len
);
867 ret
->names
[i
].longname
= mkstr(str
, len
);
868 ret
->names
[i
].attrs
= sftp_pkt_getattrs(pktin
);
870 sftp_pkt_free(pktin
);
873 fxp_got_status(pktin
);
874 sftp_pkt_free(pktin
);
880 * Write to a file. Returns 0 on error, 1 on OK.
882 int fxp_write(struct fxp_handle
*handle
, char *buffer
, uint64 offset
,
885 struct sftp_packet
*pktin
, *pktout
;
888 pktout
= sftp_pkt_init(SSH_FXP_WRITE
);
889 sftp_pkt_adduint32(pktout
, 0xDCB); /* request id */
890 sftp_pkt_addstring_start(pktout
);
891 sftp_pkt_addstring_data(pktout
, handle
->hstring
, handle
->hlen
);
892 sftp_pkt_adduint64(pktout
, offset
);
893 sftp_pkt_addstring_start(pktout
);
894 sftp_pkt_addstring_data(pktout
, buffer
, len
);
898 fxp_internal_error("did not receive a valid SFTP packet\n");
901 id
= sftp_pkt_getuint32(pktin
);
903 fxp_internal_error("request ID mismatch\n");
904 sftp_pkt_free(pktin
);
907 fxp_got_status(pktin
);
908 sftp_pkt_free(pktin
);
909 return fxp_errtype
== SSH_FX_OK
;
913 * Free up an fxp_names structure.
915 void fxp_free_names(struct fxp_names
*names
)
919 for (i
= 0; i
< names
->nnames
; i
++) {
920 sfree(names
->names
[i
].filename
);
921 sfree(names
->names
[i
].longname
);
928 * Duplicate an fxp_name structure.
930 struct fxp_name
*fxp_dup_name(struct fxp_name
*name
)
932 struct fxp_name
*ret
;
933 ret
= snew(struct fxp_name
);
934 ret
->filename
= dupstr(name
->filename
);
935 ret
->longname
= dupstr(name
->longname
);
936 ret
->attrs
= name
->attrs
; /* structure copy */
941 * Free up an fxp_name structure.
943 void fxp_free_name(struct fxp_name
*name
)
945 sfree(name
->filename
);
946 sfree(name
->longname
);