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);
71 static void sftp_pkt_addbool(struct sftp_packet *pkt, unsigned char value)
73 sftp_pkt_adddata(pkt, &value, 1);
76 static void sftp_pkt_adduint32(struct sftp_packet *pkt,
81 sftp_pkt_adddata(pkt, x, 4);
83 static void sftp_pkt_adduint64(struct sftp_packet *pkt, uint64 value)
86 PUT_32BIT(x, value.hi);
87 PUT_32BIT(x + 4, value.lo);
88 sftp_pkt_adddata(pkt, x, 8);
90 static void sftp_pkt_addstring_start(struct sftp_packet *pkt)
92 sftp_pkt_adduint32(pkt, 0);
93 pkt->savedpos = pkt->length;
95 static void sftp_pkt_addstring_str(struct sftp_packet *pkt, char *data)
97 sftp_pkt_adddata(pkt, data, strlen(data));
98 PUT_32BIT(pkt->data + pkt->savedpos - 4, pkt->length - pkt->savedpos);
100 static void sftp_pkt_addstring_data(struct sftp_packet *pkt,
103 sftp_pkt_adddata(pkt, data, len);
104 PUT_32BIT(pkt->data + pkt->savedpos - 4, pkt->length - pkt->savedpos);
106 static void sftp_pkt_addstring(struct sftp_packet *pkt, char *data)
108 sftp_pkt_addstring_start(pkt);
109 sftp_pkt_addstring_str(pkt, data);
111 static void sftp_pkt_addattrs(struct sftp_packet *pkt, struct fxp_attrs attrs)
113 sftp_pkt_adduint32(pkt, attrs.flags);
114 if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
115 sftp_pkt_adduint32(pkt, attrs.size.hi);
116 sftp_pkt_adduint32(pkt, attrs.size.lo);
118 if (attrs.flags & SSH_FILEXFER_ATTR_UIDGID) {
119 sftp_pkt_adduint32(pkt, attrs.uid);
120 sftp_pkt_adduint32(pkt, attrs.gid);
122 if (attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) {
123 sftp_pkt_adduint32(pkt, attrs.permissions);
125 if (attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME) {
126 sftp_pkt_adduint32(pkt, attrs.atime);
127 sftp_pkt_adduint32(pkt, attrs.mtime);
129 if (attrs.flags & SSH_FILEXFER_ATTR_EXTENDED) {
131 * We currently don't support sending any extended
137 /* ----------------------------------------------------------------------
138 * SFTP packet decode functions.
141 static unsigned char sftp_pkt_getbyte(struct sftp_packet *pkt)
144 if (pkt->length - pkt->savedpos < 1)
145 return 0; /* arrgh, no way to decline (FIXME?) */
146 value = (unsigned char) pkt->data[pkt->savedpos];
150 static unsigned long sftp_pkt_getuint32(struct sftp_packet *pkt)
153 if (pkt->length - pkt->savedpos < 4)
154 return 0; /* arrgh, no way to decline (FIXME?) */
155 value = GET_32BIT(pkt->data + pkt->savedpos);
159 static void sftp_pkt_getstring(struct sftp_packet *pkt,
160 char **p, int *length)
163 if (pkt->length - pkt->savedpos < 4)
165 *length = GET_32BIT(pkt->data + pkt->savedpos);
167 if (pkt->length - pkt->savedpos < *length)
169 *p = pkt->data + pkt->savedpos;
170 pkt->savedpos += *length;
172 static struct fxp_attrs sftp_pkt_getattrs(struct sftp_packet *pkt)
174 struct fxp_attrs ret;
175 ret.flags = sftp_pkt_getuint32(pkt);
176 if (ret.flags & SSH_FILEXFER_ATTR_SIZE) {
177 unsigned long hi, lo;
178 hi = sftp_pkt_getuint32(pkt);
179 lo = sftp_pkt_getuint32(pkt);
180 ret.size = uint64_make(hi, lo);
182 if (ret.flags & SSH_FILEXFER_ATTR_UIDGID) {
183 ret.uid = sftp_pkt_getuint32(pkt);
184 ret.gid = sftp_pkt_getuint32(pkt);
186 if (ret.flags & SSH_FILEXFER_ATTR_PERMISSIONS) {
187 ret.permissions = sftp_pkt_getuint32(pkt);
189 if (ret.flags & SSH_FILEXFER_ATTR_ACMODTIME) {
190 ret.atime = sftp_pkt_getuint32(pkt);
191 ret.mtime = sftp_pkt_getuint32(pkt);
193 if (ret.flags & SSH_FILEXFER_ATTR_EXTENDED) {
195 count = sftp_pkt_getuint32(pkt);
200 * We should try to analyse these, if we ever find one
203 sftp_pkt_getstring(pkt, &str, &len);
204 sftp_pkt_getstring(pkt, &str, &len);
209 static void sftp_pkt_free(struct sftp_packet *pkt)
216 /* ----------------------------------------------------------------------
217 * Send and receive packet functions.
219 int sftp_send(struct sftp_packet *pkt)
223 PUT_32BIT(x, pkt->length);
224 ret = (sftp_senddata(x, 4) && sftp_senddata(pkt->data, pkt->length));
228 struct sftp_packet *sftp_recv(void)
230 struct sftp_packet *pkt;
233 if (!sftp_recvdata(x, 4))
236 pkt = snew(struct sftp_packet);
238 pkt->length = pkt->maxlen = GET_32BIT(x);
239 pkt->data = snewn(pkt->length, char);
241 if (!sftp_recvdata(pkt->data, pkt->length)) {
246 pkt->type = sftp_pkt_getbyte(pkt);
251 /* ----------------------------------------------------------------------
252 * Request ID allocation and temporary dispatch routines.
255 #define REQUEST_ID_OFFSET 256
257 struct sftp_request {
262 static int sftp_reqcmp(void *av, void *bv)
264 struct sftp_request *a = (struct sftp_request *)av;
265 struct sftp_request *b = (struct sftp_request *)bv;
272 static int sftp_reqfind(void *av, void *bv)
274 unsigned *a = (unsigned *) av;
275 struct sftp_request *b = (struct sftp_request *)bv;
283 static tree234 *sftp_requests;
285 static struct sftp_request *sftp_alloc_request(void)
287 unsigned low, high, mid;
289 struct sftp_request *r;
291 if (sftp_requests == NULL)
292 sftp_requests = newtree234(sftp_reqcmp);
295 * First-fit allocation of request IDs: always pick the lowest
296 * unused one. To do this, binary-search using the counted
297 * B-tree to find the largest ID which is in a contiguous
298 * sequence from the beginning. (Precisely everything in that
299 * sequence must have ID equal to its tree index plus
300 * REQUEST_ID_OFFSET.)
302 tsize = count234(sftp_requests);
306 while (high - low > 1) {
307 mid = (high + low) / 2;
308 r = index234(sftp_requests, mid);
309 if (r->id == mid + REQUEST_ID_OFFSET)
310 low = mid; /* this one is fine */
312 high = mid; /* this one is past it */
315 * Now low points to either -1, or the tree index of the
316 * largest ID in the initial sequence.
319 unsigned i = low + 1 + REQUEST_ID_OFFSET;
320 assert(NULL == find234(sftp_requests, &i, sftp_reqfind));
324 * So the request ID we need to create is
325 * low + 1 + REQUEST_ID_OFFSET.
327 r = snew(struct sftp_request);
328 r->id = low + 1 + REQUEST_ID_OFFSET;
330 add234(sftp_requests, r);
334 void sftp_register(struct sftp_request *req)
339 struct sftp_request *sftp_find_request(struct sftp_packet *pktin)
342 struct sftp_request *req;
345 fxp_internal_error("did not receive a valid SFTP packet\n");
349 id = sftp_pkt_getuint32(pktin);
350 req = find234(sftp_requests, &id, sftp_reqfind);
352 if (!req || !req->registered) {
353 fxp_internal_error("request ID mismatch\n");
354 sftp_pkt_free(pktin);
358 del234(sftp_requests, req);
363 /* ----------------------------------------------------------------------
364 * String handling routines.
367 static char *mkstr(char *s, int len)
369 char *p = snewn(len + 1, char);
375 /* ----------------------------------------------------------------------
380 * Deal with (and free) an FXP_STATUS packet. Return 1 if
381 * SSH_FX_OK, 0 if SSH_FX_EOF, and -1 for anything else (error).
382 * Also place the status into fxp_errtype.
384 static int fxp_got_status(struct sftp_packet *pktin)
386 static const char *const messages[] = {
387 /* SSH_FX_OK. The only time we will display a _message_ for this
388 * is if we were expecting something other than FXP_STATUS on
389 * success, so this is actually an error message! */
390 "unexpected OK response",
392 "no such file or directory",
398 "operation unsupported",
401 if (pktin->type != SSH_FXP_STATUS) {
402 fxp_error_message = "expected FXP_STATUS packet";
405 fxp_errtype = sftp_pkt_getuint32(pktin);
406 if (fxp_errtype < 0 ||
407 fxp_errtype >= sizeof(messages) / sizeof(*messages))
408 fxp_error_message = "unknown error code";
410 fxp_error_message = messages[fxp_errtype];
413 if (fxp_errtype == SSH_FX_OK)
415 else if (fxp_errtype == SSH_FX_EOF)
421 static void fxp_internal_error(char *msg)
423 fxp_error_message = msg;
427 const char *fxp_error(void)
429 return fxp_error_message;
432 int fxp_error_type(void)
438 * Perform exchange of init/version packets. Return 0 on failure.
442 struct sftp_packet *pktout, *pktin;
445 pktout = sftp_pkt_init(SSH_FXP_INIT);
446 sftp_pkt_adduint32(pktout, SFTP_PROTO_VERSION);
451 fxp_internal_error("could not connect");
454 if (pktin->type != SSH_FXP_VERSION) {
455 fxp_internal_error("did not receive FXP_VERSION");
456 sftp_pkt_free(pktin);
459 remotever = sftp_pkt_getuint32(pktin);
460 if (remotever > SFTP_PROTO_VERSION) {
462 ("remote protocol is more advanced than we support");
463 sftp_pkt_free(pktin);
467 * In principle, this packet might also contain extension-
468 * string pairs. We should work through them and look for any
469 * we recognise. In practice we don't currently do so because
470 * we know we don't recognise _any_.
472 sftp_pkt_free(pktin);
478 * Canonify a pathname.
480 struct sftp_request *fxp_realpath_send(char *path)
482 struct sftp_request *req = sftp_alloc_request();
483 struct sftp_packet *pktout;
485 pktout = sftp_pkt_init(SSH_FXP_REALPATH);
486 sftp_pkt_adduint32(pktout, req->id);
487 sftp_pkt_addstring_start(pktout);
488 sftp_pkt_addstring_str(pktout, path);
494 char *fxp_realpath_recv(struct sftp_packet *pktin, struct sftp_request *req)
498 if (pktin->type == SSH_FXP_NAME) {
503 count = sftp_pkt_getuint32(pktin);
505 fxp_internal_error("REALPATH returned name count != 1\n");
506 sftp_pkt_free(pktin);
509 sftp_pkt_getstring(pktin, &path, &len);
511 fxp_internal_error("REALPATH returned malformed FXP_NAME\n");
512 sftp_pkt_free(pktin);
515 path = mkstr(path, len);
516 sftp_pkt_free(pktin);
519 fxp_got_status(pktin);
520 sftp_pkt_free(pktin);
528 struct sftp_request *fxp_open_send(char *path, int type)
530 struct sftp_request *req = sftp_alloc_request();
531 struct sftp_packet *pktout;
533 pktout = sftp_pkt_init(SSH_FXP_OPEN);
534 sftp_pkt_adduint32(pktout, req->id);
535 sftp_pkt_addstring(pktout, path);
536 sftp_pkt_adduint32(pktout, type);
537 sftp_pkt_adduint32(pktout, 0); /* (FIXME) empty ATTRS structure */
543 struct fxp_handle *fxp_open_recv(struct sftp_packet *pktin,
544 struct sftp_request *req)
548 if (pktin->type == SSH_FXP_HANDLE) {
550 struct fxp_handle *handle;
553 sftp_pkt_getstring(pktin, &hstring, &len);
555 fxp_internal_error("OPEN returned malformed FXP_HANDLE\n");
556 sftp_pkt_free(pktin);
559 handle = snew(struct fxp_handle);
560 handle->hstring = mkstr(hstring, len);
562 sftp_pkt_free(pktin);
565 fxp_got_status(pktin);
566 sftp_pkt_free(pktin);
574 struct sftp_request *fxp_opendir_send(char *path)
576 struct sftp_request *req = sftp_alloc_request();
577 struct sftp_packet *pktout;
579 pktout = sftp_pkt_init(SSH_FXP_OPENDIR);
580 sftp_pkt_adduint32(pktout, req->id);
581 sftp_pkt_addstring(pktout, path);
587 struct fxp_handle *fxp_opendir_recv(struct sftp_packet *pktin,
588 struct sftp_request *req)
591 if (pktin->type == SSH_FXP_HANDLE) {
593 struct fxp_handle *handle;
596 sftp_pkt_getstring(pktin, &hstring, &len);
598 fxp_internal_error("OPENDIR returned malformed FXP_HANDLE\n");
599 sftp_pkt_free(pktin);
602 handle = snew(struct fxp_handle);
603 handle->hstring = mkstr(hstring, len);
605 sftp_pkt_free(pktin);
608 fxp_got_status(pktin);
609 sftp_pkt_free(pktin);
617 struct sftp_request *fxp_close_send(struct fxp_handle *handle)
619 struct sftp_request *req = sftp_alloc_request();
620 struct sftp_packet *pktout;
622 pktout = sftp_pkt_init(SSH_FXP_CLOSE);
623 sftp_pkt_adduint32(pktout, req->id);
624 sftp_pkt_addstring_start(pktout);
625 sftp_pkt_addstring_data(pktout, handle->hstring, handle->hlen);
628 sfree(handle->hstring);
634 void fxp_close_recv(struct sftp_packet *pktin, struct sftp_request *req)
637 fxp_got_status(pktin);
638 sftp_pkt_free(pktin);
641 struct sftp_request *fxp_mkdir_send(char *path)
643 struct sftp_request *req = sftp_alloc_request();
644 struct sftp_packet *pktout;
646 pktout = sftp_pkt_init(SSH_FXP_MKDIR);
647 sftp_pkt_adduint32(pktout, req->id);
648 sftp_pkt_addstring(pktout, path);
649 sftp_pkt_adduint32(pktout, 0); /* (FIXME) empty ATTRS structure */
655 int fxp_mkdir_recv(struct sftp_packet *pktin, struct sftp_request *req)
659 id = fxp_got_status(pktin);
660 sftp_pkt_free(pktin);
667 struct sftp_request *fxp_rmdir_send(char *path)
669 struct sftp_request *req = sftp_alloc_request();
670 struct sftp_packet *pktout;
672 pktout = sftp_pkt_init(SSH_FXP_RMDIR);
673 sftp_pkt_adduint32(pktout, req->id);
674 sftp_pkt_addstring(pktout, path);
680 int fxp_rmdir_recv(struct sftp_packet *pktin, struct sftp_request *req)
684 id = fxp_got_status(pktin);
685 sftp_pkt_free(pktin);
692 struct sftp_request *fxp_remove_send(char *fname)
694 struct sftp_request *req = sftp_alloc_request();
695 struct sftp_packet *pktout;
697 pktout = sftp_pkt_init(SSH_FXP_REMOVE);
698 sftp_pkt_adduint32(pktout, req->id);
699 sftp_pkt_addstring(pktout, fname);
705 int fxp_remove_recv(struct sftp_packet *pktin, struct sftp_request *req)
709 id = fxp_got_status(pktin);
710 sftp_pkt_free(pktin);
717 struct sftp_request *fxp_rename_send(char *srcfname, char *dstfname)
719 struct sftp_request *req = sftp_alloc_request();
720 struct sftp_packet *pktout;
722 pktout = sftp_pkt_init(SSH_FXP_RENAME);
723 sftp_pkt_adduint32(pktout, req->id);
724 sftp_pkt_addstring(pktout, srcfname);
725 sftp_pkt_addstring(pktout, dstfname);
731 int fxp_rename_recv(struct sftp_packet *pktin, struct sftp_request *req)
735 id = fxp_got_status(pktin);
736 sftp_pkt_free(pktin);
744 * Retrieve the attributes of a file. We have fxp_stat which works
745 * on filenames, and fxp_fstat which works on open file handles.
747 struct sftp_request *fxp_stat_send(char *fname)
749 struct sftp_request *req = sftp_alloc_request();
750 struct sftp_packet *pktout;
752 pktout = sftp_pkt_init(SSH_FXP_STAT);
753 sftp_pkt_adduint32(pktout, req->id);
754 sftp_pkt_addstring(pktout, fname);
760 int fxp_stat_recv(struct sftp_packet *pktin, struct sftp_request *req,
761 struct fxp_attrs *attrs)
764 if (pktin->type == SSH_FXP_ATTRS) {
765 *attrs = sftp_pkt_getattrs(pktin);
766 sftp_pkt_free(pktin);
769 fxp_got_status(pktin);
770 sftp_pkt_free(pktin);
775 struct sftp_request *fxp_fstat_send(struct fxp_handle *handle)
777 struct sftp_request *req = sftp_alloc_request();
778 struct sftp_packet *pktout;
780 pktout = sftp_pkt_init(SSH_FXP_FSTAT);
781 sftp_pkt_adduint32(pktout, req->id);
782 sftp_pkt_addstring_start(pktout);
783 sftp_pkt_addstring_data(pktout, handle->hstring, handle->hlen);
789 int fxp_fstat_recv(struct sftp_packet *pktin, struct sftp_request *req,
790 struct fxp_attrs *attrs)
793 if (pktin->type == SSH_FXP_ATTRS) {
794 *attrs = sftp_pkt_getattrs(pktin);
795 sftp_pkt_free(pktin);
798 fxp_got_status(pktin);
799 sftp_pkt_free(pktin);
805 * Set the attributes of a file.
807 struct sftp_request *fxp_setstat_send(char *fname, struct fxp_attrs attrs)
809 struct sftp_request *req = sftp_alloc_request();
810 struct sftp_packet *pktout;
812 pktout = sftp_pkt_init(SSH_FXP_SETSTAT);
813 sftp_pkt_adduint32(pktout, req->id);
814 sftp_pkt_addstring(pktout, fname);
815 sftp_pkt_addattrs(pktout, attrs);
821 int fxp_setstat_recv(struct sftp_packet *pktin, struct sftp_request *req)
825 id = fxp_got_status(pktin);
826 sftp_pkt_free(pktin);
833 struct sftp_request *fxp_fsetstat_send(struct fxp_handle *handle,
834 struct fxp_attrs attrs)
836 struct sftp_request *req = sftp_alloc_request();
837 struct sftp_packet *pktout;
839 pktout = sftp_pkt_init(SSH_FXP_FSETSTAT);
840 sftp_pkt_adduint32(pktout, req->id);
841 sftp_pkt_addstring_start(pktout);
842 sftp_pkt_addstring_data(pktout, handle->hstring, handle->hlen);
843 sftp_pkt_addattrs(pktout, attrs);
849 int fxp_fsetstat_recv(struct sftp_packet *pktin, struct sftp_request *req)
853 id = fxp_got_status(pktin);
854 sftp_pkt_free(pktin);
862 * Read from a file. Returns the number of bytes read, or -1 on an
863 * error, or possibly 0 if EOF. (I'm not entirely sure whether it
864 * will return 0 on EOF, or return -1 and store SSH_FX_EOF in the
865 * error indicator. It might even depend on the SFTP server.)
867 struct sftp_request *fxp_read_send(struct fxp_handle *handle,
868 uint64 offset, int len)
870 struct sftp_request *req = sftp_alloc_request();
871 struct sftp_packet *pktout;
873 pktout = sftp_pkt_init(SSH_FXP_READ);
874 sftp_pkt_adduint32(pktout, req->id);
875 sftp_pkt_addstring_start(pktout);
876 sftp_pkt_addstring_data(pktout, handle->hstring, handle->hlen);
877 sftp_pkt_adduint64(pktout, offset);
878 sftp_pkt_adduint32(pktout, len);
884 int fxp_read_recv(struct sftp_packet *pktin, struct sftp_request *req,
885 char *buffer, int len)
888 if (pktin->type == SSH_FXP_DATA) {
892 sftp_pkt_getstring(pktin, &str, &rlen);
894 if (rlen > len || rlen < 0) {
895 fxp_internal_error("READ returned more bytes than requested");
896 sftp_pkt_free(pktin);
900 memcpy(buffer, str, rlen);
901 sftp_pkt_free(pktin);
904 fxp_got_status(pktin);
905 sftp_pkt_free(pktin);
911 * Read from a directory.
913 struct sftp_request *fxp_readdir_send(struct fxp_handle *handle)
915 struct sftp_request *req = sftp_alloc_request();
916 struct sftp_packet *pktout;
918 pktout = sftp_pkt_init(SSH_FXP_READDIR);
919 sftp_pkt_adduint32(pktout, req->id);
920 sftp_pkt_addstring_start(pktout);
921 sftp_pkt_addstring_data(pktout, handle->hstring, handle->hlen);
927 struct fxp_names *fxp_readdir_recv(struct sftp_packet *pktin,
928 struct sftp_request *req)
931 if (pktin->type == SSH_FXP_NAME) {
932 struct fxp_names *ret;
934 ret = snew(struct fxp_names);
935 ret->nnames = sftp_pkt_getuint32(pktin);
936 ret->names = snewn(ret->nnames, struct fxp_name);
937 for (i = 0; i < ret->nnames; i++) {
940 sftp_pkt_getstring(pktin, &str, &len);
941 ret->names[i].filename = mkstr(str, len);
942 sftp_pkt_getstring(pktin, &str, &len);
943 ret->names[i].longname = mkstr(str, len);
944 ret->names[i].attrs = sftp_pkt_getattrs(pktin);
946 sftp_pkt_free(pktin);
949 fxp_got_status(pktin);
950 sftp_pkt_free(pktin);
956 * Write to a file. Returns 0 on error, 1 on OK.
958 struct sftp_request *fxp_write_send(struct fxp_handle *handle,
959 char *buffer, uint64 offset, int len)
961 struct sftp_request *req = sftp_alloc_request();
962 struct sftp_packet *pktout;
964 pktout = sftp_pkt_init(SSH_FXP_WRITE);
965 sftp_pkt_adduint32(pktout, req->id);
966 sftp_pkt_addstring_start(pktout);
967 sftp_pkt_addstring_data(pktout, handle->hstring, handle->hlen);
968 sftp_pkt_adduint64(pktout, offset);
969 sftp_pkt_addstring_start(pktout);
970 sftp_pkt_addstring_data(pktout, buffer, len);
976 int fxp_write_recv(struct sftp_packet *pktin, struct sftp_request *req)
979 fxp_got_status(pktin);
980 sftp_pkt_free(pktin);
981 return fxp_errtype == SSH_FX_OK;
985 * Free up an fxp_names structure.
987 void fxp_free_names(struct fxp_names *names)
991 for (i = 0; i < names->nnames; i++) {
992 sfree(names->names[i].filename);
993 sfree(names->names[i].longname);
1000 * Duplicate an fxp_name structure.
1002 struct fxp_name *fxp_dup_name(struct fxp_name *name)
1004 struct fxp_name *ret;
1005 ret = snew(struct fxp_name);
1006 ret->filename = dupstr(name->filename);
1007 ret->longname = dupstr(name->longname);
1008 ret->attrs = name->attrs; /* structure copy */
1013 * Free up an fxp_name structure.
1015 void fxp_free_name(struct fxp_name *name)
1017 sfree(name->filename);
1018 sfree(name->longname);