2 * uxsftp.c: the Unix-specific parts of PSFTP and PSCP.
16 #ifndef HAVE_NO_SYS_SELECT_H
17 #include <sys/select.h>
26 * In PSFTP our selects are synchronous, so these functions are
29 int uxsel_input_add(int fd
, int rwx
) { return 0; }
30 void uxsel_input_remove(int id
) { }
32 char *x_get_default(const char *key
)
34 return NULL
; /* this is a stub */
37 void platform_get_x11_auth(struct X11Display
*display
, Conf
*conf
)
39 /* Do nothing, therefore no auth. */
41 const int platform_uses_x11_unix_by_default
= TRUE
;
44 * Default settings that are specific to PSFTP.
46 char *platform_default_s(const char *name
)
51 int platform_default_i(const char *name
, int def
)
56 FontSpec
platform_default_fontspec(const char *name
)
63 Filename
platform_default_filename(const char *name
)
66 if (!strcmp(name
, "LogFileName"))
67 strcpy(ret
.path
, "putty.log");
73 char *get_ttymode(void *frontend
, const char *mode
) { return NULL
; }
75 int get_userpass_input(prompts_t
*p
, unsigned char *in
, int inlen
)
78 ret
= cmdline_get_passwd_input(p
, in
, inlen
);
80 ret
= console_get_userpass_input(p
, in
, inlen
);
85 * Set local current directory. Returns NULL on success, or else an
86 * error message which must be freed after printing.
88 char *psftp_lcd(char *dir
)
91 return dupprintf("%s: chdir: %s", dir
, strerror(errno
));
97 * Get local current directory. Returns a string which must be
100 char *psftp_getcwd(void)
105 buffer
= snewn(size
, char);
107 ret
= getcwd(buffer
, size
);
110 if (errno
!= ERANGE
) {
112 return dupprintf("[cwd unavailable: %s]", strerror(errno
));
115 * Otherwise, ERANGE was returned, meaning the buffer
119 buffer
= sresize(buffer
, size
, char);
127 RFile
*open_existing_file(char *name
, uint64
*size
,
128 unsigned long *mtime
, unsigned long *atime
,
134 fd
= open(name
, O_RDONLY
);
141 if (size
|| mtime
|| atime
|| perms
) {
143 if (fstat(fd
, &statbuf
) < 0) {
144 fprintf(stderr
, "%s: stat: %s\n", name
, strerror(errno
));
145 memset(&statbuf
, 0, sizeof(statbuf
));
149 *size
= uint64_make((statbuf
.st_size
>> 16) >> 16,
153 *mtime
= statbuf
.st_mtime
;
156 *atime
= statbuf
.st_atime
;
159 *perms
= statbuf
.st_mode
;
165 int read_from_file(RFile
*f
, void *buffer
, int length
)
167 return read(f
->fd
, buffer
, length
);
170 void close_rfile(RFile
*f
)
181 WFile
*open_new_file(char *name
, long perms
)
186 fd
= open(name
, O_CREAT
| O_TRUNC
| O_WRONLY
,
187 (mode_t
)(perms ? perms
: 0666));
193 ret
->name
= dupstr(name
);
199 WFile
*open_existing_wfile(char *name
, uint64
*size
)
204 fd
= open(name
, O_APPEND
| O_WRONLY
);
210 ret
->name
= dupstr(name
);
214 if (fstat(fd
, &statbuf
) < 0) {
215 fprintf(stderr
, "%s: stat: %s\n", name
, strerror(errno
));
216 memset(&statbuf
, 0, sizeof(statbuf
));
219 *size
= uint64_make((statbuf
.st_size
>> 16) >> 16,
226 int write_to_file(WFile
*f
, void *buffer
, int length
)
228 char *p
= (char *)buffer
;
231 /* Keep trying until we've really written as much as we can. */
233 int ret
= write(f
->fd
, p
, length
);
249 void set_file_times(WFile
*f
, unsigned long mtime
, unsigned long atime
)
259 /* Closes and frees the WFile */
260 void close_wfile(WFile
*f
)
267 /* Seek offset bytes through file, from whence, where whence is
268 FROM_START, FROM_CURRENT, or FROM_END */
269 int seek_file(WFile
*f
, uint64 offset
, int whence
)
274 fileofft
= (((off_t
) offset
.hi
<< 16) << 16) + offset
.lo
;
278 lseek_whence
= SEEK_SET
;
281 lseek_whence
= SEEK_CUR
;
284 lseek_whence
= SEEK_END
;
290 return lseek(f
->fd
, fileofft
, lseek_whence
) >= 0 ?
0 : -1;
293 uint64
get_file_posn(WFile
*f
)
298 fileofft
= lseek(f
->fd
, (off_t
) 0, SEEK_CUR
);
300 ret
= uint64_make((fileofft
>> 16) >> 16, fileofft
);
305 int file_type(char *name
)
309 if (stat(name
, &statbuf
) < 0) {
311 fprintf(stderr
, "%s: stat: %s\n", name
, strerror(errno
));
312 return FILE_TYPE_NONEXISTENT
;
315 if (S_ISREG(statbuf
.st_mode
))
316 return FILE_TYPE_FILE
;
318 if (S_ISDIR(statbuf
.st_mode
))
319 return FILE_TYPE_DIRECTORY
;
321 return FILE_TYPE_WEIRD
;
328 DirHandle
*open_directory(char *name
)
337 ret
= snew(DirHandle
);
342 char *read_filename(DirHandle
*dir
)
347 de
= readdir(dir
->dir
);
350 } while ((de
->d_name
[0] == '.' &&
351 (de
->d_name
[1] == '\0' ||
352 (de
->d_name
[1] == '.' && de
->d_name
[2] == '\0'))));
354 return dupstr(de
->d_name
);
357 void close_directory(DirHandle
*dir
)
363 int test_wildcard(char *name
, int cmdline
)
367 if (stat(name
, &statbuf
) == 0) {
368 return WCTYPE_FILENAME
;
369 } else if (cmdline
) {
371 * On Unix, we never need to parse wildcards coming from
372 * the command line, because the shell will have expanded
373 * them into a filename list already.
375 return WCTYPE_NONEXISTENT
;
378 int ret
= WCTYPE_NONEXISTENT
;
380 if (glob(name
, GLOB_ERR
, NULL
, &globbed
) == 0) {
381 if (globbed
.gl_pathc
> 0)
382 ret
= WCTYPE_WILDCARD
;
391 * Actually return matching file names for a local wildcard.
393 struct WildcardMatcher
{
397 WildcardMatcher
*begin_wildcard_matching(char *name
) {
398 WildcardMatcher
*ret
= snew(WildcardMatcher
);
400 if (glob(name
, 0, NULL
, &ret
->globbed
) < 0) {
409 char *wildcard_get_filename(WildcardMatcher
*dir
) {
410 if (dir
->i
< dir
->globbed
.gl_pathc
) {
411 return dupstr(dir
->globbed
.gl_pathv
[dir
->i
++]);
415 void finish_wildcard_matching(WildcardMatcher
*dir
) {
416 globfree(&dir
->globbed
);
420 int vet_filename(char *name
)
422 if (strchr(name
, '/'))
425 if (name
[0] == '.' && (!name
[1] || (name
[1] == '.' && !name
[2])))
431 int create_directory(char *name
)
433 return mkdir(name
, 0777) == 0;
436 char *dir_file_cat(char *dir
, char *file
)
438 return dupcat(dir
, "/", file
, NULL
);
442 * Do a select() between all currently active network fds and
445 static int ssh_sftp_do_select(int include_stdin
, int no_fds_ok
)
447 fd_set rset
, wset
, xset
;
448 int i
, fdcount
, fdsize
, *fdlist
;
449 int fd
, fdstate
, rwx
, ret
, maxfd
;
450 long now
= GETTICKCOUNT();
453 fdcount
= fdsize
= 0;
457 /* Count the currently active fds. */
459 for (fd
= first_fd(&fdstate
, &rwx
); fd
>= 0;
460 fd
= next_fd(&fdstate
, &rwx
)) i
++;
462 if (i
< 1 && !no_fds_ok
)
463 return -1; /* doom */
465 /* Expand the fdlist buffer if necessary. */
468 fdlist
= sresize(fdlist
, fdsize
, int);
477 * Add all currently open fds to the select sets, and store
478 * them in fdlist as well.
481 for (fd
= first_fd(&fdstate
, &rwx
); fd
>= 0;
482 fd
= next_fd(&fdstate
, &rwx
)) {
483 fdlist
[fdcount
++] = fd
;
485 FD_SET_MAX(fd
, maxfd
, rset
);
487 FD_SET_MAX(fd
, maxfd
, wset
);
489 FD_SET_MAX(fd
, maxfd
, xset
);
493 FD_SET_MAX(0, maxfd
, rset
);
497 struct timeval tv
, *ptv
;
499 if (run_timers(now
, &next
)) {
500 ticks
= next
- GETTICKCOUNT();
502 ticks
= 1; /* just in case */
503 tv
.tv_sec
= ticks
/ 1000;
504 tv
.tv_usec
= ticks
% 1000 * 1000;
509 ret
= select(maxfd
, &rset
, &wset
, &xset
, ptv
);
513 long newnow
= GETTICKCOUNT();
515 * Check to see whether the system clock has
516 * changed massively during the select.
518 if (newnow
- now
< 0 || newnow
- now
> next
- now
) {
520 * If so, look at the elapsed time in the
521 * select and use it to compute a new
524 long othernow
= now
+ tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
525 /* So we'd like GETTICKCOUNT to have returned othernow,
526 * but instead it return newnow. Hence ... */
527 tickcount_offset
+= othernow
- newnow
;
533 } while (ret
< 0 && errno
!= EINTR
);
541 for (i
= 0; i
< fdcount
; i
++) {
544 * We must process exceptional notifications before
545 * ordinary readability ones, or we may go straight
546 * past the urgent marker.
548 if (FD_ISSET(fd
, &xset
))
549 select_result(fd
, 4);
550 if (FD_ISSET(fd
, &rset
))
551 select_result(fd
, 1);
552 if (FD_ISSET(fd
, &wset
))
553 select_result(fd
, 2);
558 return FD_ISSET(0, &rset
) ?
1 : 0;
562 * Wait for some network data and process it.
564 int ssh_sftp_loop_iteration(void)
566 return ssh_sftp_do_select(FALSE
, FALSE
);
570 * Read a PSFTP command line from stdin.
572 char *ssh_sftp_get_cmdline(char *prompt
, int no_fds_ok
)
575 int buflen
, bufsize
, ret
;
577 fputs(prompt
, stdout
);
581 buflen
= bufsize
= 0;
584 ret
= ssh_sftp_do_select(TRUE
, no_fds_ok
);
586 printf("connection died\n");
587 return NULL
; /* woop woop */
590 if (buflen
>= bufsize
) {
591 bufsize
= buflen
+ 512;
592 buf
= sresize(buf
, bufsize
, char);
594 ret
= read(0, buf
+buflen
, 1);
600 /* eof on stdin; no error, but no answer either */
604 if (buf
[buflen
++] == '\n') {
605 /* we have a full line */
613 * Main program: do platform-specific initialisation and then call
616 int main(int argc
, char *argv
[])
619 return psftp_main(argc
, argv
);