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
)
58 return fontspec_new("");
61 Filename
platform_default_filename(const char *name
)
64 if (!strcmp(name
, "LogFileName"))
65 strcpy(ret
.path
, "putty.log");
71 char *get_ttymode(void *frontend
, const char *mode
) { return NULL
; }
73 int get_userpass_input(prompts_t
*p
, unsigned char *in
, int inlen
)
76 ret
= cmdline_get_passwd_input(p
, in
, inlen
);
78 ret
= console_get_userpass_input(p
, in
, inlen
);
83 * Set local current directory. Returns NULL on success, or else an
84 * error message which must be freed after printing.
86 char *psftp_lcd(char *dir
)
89 return dupprintf("%s: chdir: %s", dir
, strerror(errno
));
95 * Get local current directory. Returns a string which must be
98 char *psftp_getcwd(void)
103 buffer
= snewn(size
, char);
105 ret
= getcwd(buffer
, size
);
108 if (errno
!= ERANGE
) {
110 return dupprintf("[cwd unavailable: %s]", strerror(errno
));
113 * Otherwise, ERANGE was returned, meaning the buffer
117 buffer
= sresize(buffer
, size
, char);
125 RFile
*open_existing_file(char *name
, uint64
*size
,
126 unsigned long *mtime
, unsigned long *atime
,
132 fd
= open(name
, O_RDONLY
);
139 if (size
|| mtime
|| atime
|| perms
) {
141 if (fstat(fd
, &statbuf
) < 0) {
142 fprintf(stderr
, "%s: stat: %s\n", name
, strerror(errno
));
143 memset(&statbuf
, 0, sizeof(statbuf
));
147 *size
= uint64_make((statbuf
.st_size
>> 16) >> 16,
151 *mtime
= statbuf
.st_mtime
;
154 *atime
= statbuf
.st_atime
;
157 *perms
= statbuf
.st_mode
;
163 int read_from_file(RFile
*f
, void *buffer
, int length
)
165 return read(f
->fd
, buffer
, length
);
168 void close_rfile(RFile
*f
)
179 WFile
*open_new_file(char *name
, long perms
)
184 fd
= open(name
, O_CREAT
| O_TRUNC
| O_WRONLY
,
185 (mode_t
)(perms ? perms
: 0666));
191 ret
->name
= dupstr(name
);
197 WFile
*open_existing_wfile(char *name
, uint64
*size
)
202 fd
= open(name
, O_APPEND
| O_WRONLY
);
208 ret
->name
= dupstr(name
);
212 if (fstat(fd
, &statbuf
) < 0) {
213 fprintf(stderr
, "%s: stat: %s\n", name
, strerror(errno
));
214 memset(&statbuf
, 0, sizeof(statbuf
));
217 *size
= uint64_make((statbuf
.st_size
>> 16) >> 16,
224 int write_to_file(WFile
*f
, void *buffer
, int length
)
226 char *p
= (char *)buffer
;
229 /* Keep trying until we've really written as much as we can. */
231 int ret
= write(f
->fd
, p
, length
);
247 void set_file_times(WFile
*f
, unsigned long mtime
, unsigned long atime
)
257 /* Closes and frees the WFile */
258 void close_wfile(WFile
*f
)
265 /* Seek offset bytes through file, from whence, where whence is
266 FROM_START, FROM_CURRENT, or FROM_END */
267 int seek_file(WFile
*f
, uint64 offset
, int whence
)
272 fileofft
= (((off_t
) offset
.hi
<< 16) << 16) + offset
.lo
;
276 lseek_whence
= SEEK_SET
;
279 lseek_whence
= SEEK_CUR
;
282 lseek_whence
= SEEK_END
;
288 return lseek(f
->fd
, fileofft
, lseek_whence
) >= 0 ?
0 : -1;
291 uint64
get_file_posn(WFile
*f
)
296 fileofft
= lseek(f
->fd
, (off_t
) 0, SEEK_CUR
);
298 ret
= uint64_make((fileofft
>> 16) >> 16, fileofft
);
303 int file_type(char *name
)
307 if (stat(name
, &statbuf
) < 0) {
309 fprintf(stderr
, "%s: stat: %s\n", name
, strerror(errno
));
310 return FILE_TYPE_NONEXISTENT
;
313 if (S_ISREG(statbuf
.st_mode
))
314 return FILE_TYPE_FILE
;
316 if (S_ISDIR(statbuf
.st_mode
))
317 return FILE_TYPE_DIRECTORY
;
319 return FILE_TYPE_WEIRD
;
326 DirHandle
*open_directory(char *name
)
335 ret
= snew(DirHandle
);
340 char *read_filename(DirHandle
*dir
)
345 de
= readdir(dir
->dir
);
348 } while ((de
->d_name
[0] == '.' &&
349 (de
->d_name
[1] == '\0' ||
350 (de
->d_name
[1] == '.' && de
->d_name
[2] == '\0'))));
352 return dupstr(de
->d_name
);
355 void close_directory(DirHandle
*dir
)
361 int test_wildcard(char *name
, int cmdline
)
365 if (stat(name
, &statbuf
) == 0) {
366 return WCTYPE_FILENAME
;
367 } else if (cmdline
) {
369 * On Unix, we never need to parse wildcards coming from
370 * the command line, because the shell will have expanded
371 * them into a filename list already.
373 return WCTYPE_NONEXISTENT
;
376 int ret
= WCTYPE_NONEXISTENT
;
378 if (glob(name
, GLOB_ERR
, NULL
, &globbed
) == 0) {
379 if (globbed
.gl_pathc
> 0)
380 ret
= WCTYPE_WILDCARD
;
389 * Actually return matching file names for a local wildcard.
391 struct WildcardMatcher
{
395 WildcardMatcher
*begin_wildcard_matching(char *name
) {
396 WildcardMatcher
*ret
= snew(WildcardMatcher
);
398 if (glob(name
, 0, NULL
, &ret
->globbed
) < 0) {
407 char *wildcard_get_filename(WildcardMatcher
*dir
) {
408 if (dir
->i
< dir
->globbed
.gl_pathc
) {
409 return dupstr(dir
->globbed
.gl_pathv
[dir
->i
++]);
413 void finish_wildcard_matching(WildcardMatcher
*dir
) {
414 globfree(&dir
->globbed
);
418 int vet_filename(char *name
)
420 if (strchr(name
, '/'))
423 if (name
[0] == '.' && (!name
[1] || (name
[1] == '.' && !name
[2])))
429 int create_directory(char *name
)
431 return mkdir(name
, 0777) == 0;
434 char *dir_file_cat(char *dir
, char *file
)
436 return dupcat(dir
, "/", file
, NULL
);
440 * Do a select() between all currently active network fds and
443 static int ssh_sftp_do_select(int include_stdin
, int no_fds_ok
)
445 fd_set rset
, wset
, xset
;
446 int i
, fdcount
, fdsize
, *fdlist
;
447 int fd
, fdstate
, rwx
, ret
, maxfd
;
448 long now
= GETTICKCOUNT();
451 fdcount
= fdsize
= 0;
455 /* Count the currently active fds. */
457 for (fd
= first_fd(&fdstate
, &rwx
); fd
>= 0;
458 fd
= next_fd(&fdstate
, &rwx
)) i
++;
460 if (i
< 1 && !no_fds_ok
)
461 return -1; /* doom */
463 /* Expand the fdlist buffer if necessary. */
466 fdlist
= sresize(fdlist
, fdsize
, int);
475 * Add all currently open fds to the select sets, and store
476 * them in fdlist as well.
479 for (fd
= first_fd(&fdstate
, &rwx
); fd
>= 0;
480 fd
= next_fd(&fdstate
, &rwx
)) {
481 fdlist
[fdcount
++] = fd
;
483 FD_SET_MAX(fd
, maxfd
, rset
);
485 FD_SET_MAX(fd
, maxfd
, wset
);
487 FD_SET_MAX(fd
, maxfd
, xset
);
491 FD_SET_MAX(0, maxfd
, rset
);
495 struct timeval tv
, *ptv
;
497 if (run_timers(now
, &next
)) {
498 ticks
= next
- GETTICKCOUNT();
500 ticks
= 1; /* just in case */
501 tv
.tv_sec
= ticks
/ 1000;
502 tv
.tv_usec
= ticks
% 1000 * 1000;
507 ret
= select(maxfd
, &rset
, &wset
, &xset
, ptv
);
511 long newnow
= GETTICKCOUNT();
513 * Check to see whether the system clock has
514 * changed massively during the select.
516 if (newnow
- now
< 0 || newnow
- now
> next
- now
) {
518 * If so, look at the elapsed time in the
519 * select and use it to compute a new
522 long othernow
= now
+ tv
.tv_sec
* 1000 + tv
.tv_usec
/ 1000;
523 /* So we'd like GETTICKCOUNT to have returned othernow,
524 * but instead it return newnow. Hence ... */
525 tickcount_offset
+= othernow
- newnow
;
531 } while (ret
< 0 && errno
!= EINTR
);
539 for (i
= 0; i
< fdcount
; i
++) {
542 * We must process exceptional notifications before
543 * ordinary readability ones, or we may go straight
544 * past the urgent marker.
546 if (FD_ISSET(fd
, &xset
))
547 select_result(fd
, 4);
548 if (FD_ISSET(fd
, &rset
))
549 select_result(fd
, 1);
550 if (FD_ISSET(fd
, &wset
))
551 select_result(fd
, 2);
556 return FD_ISSET(0, &rset
) ?
1 : 0;
560 * Wait for some network data and process it.
562 int ssh_sftp_loop_iteration(void)
564 return ssh_sftp_do_select(FALSE
, FALSE
);
568 * Read a PSFTP command line from stdin.
570 char *ssh_sftp_get_cmdline(char *prompt
, int no_fds_ok
)
573 int buflen
, bufsize
, ret
;
575 fputs(prompt
, stdout
);
579 buflen
= bufsize
= 0;
582 ret
= ssh_sftp_do_select(TRUE
, no_fds_ok
);
584 printf("connection died\n");
585 return NULL
; /* woop woop */
588 if (buflen
>= bufsize
) {
589 bufsize
= buflen
+ 512;
590 buf
= sresize(buf
, bufsize
, char);
592 ret
= read(0, buf
+buflen
, 1);
598 /* eof on stdin; no error, but no answer either */
602 if (buf
[buflen
++] == '\n') {
603 /* we have a full line */
611 * Main program: do platform-specific initialisation and then call
614 int main(int argc
, char *argv
[])
617 return psftp_main(argc
, argv
);