2 * uxsftp.c: the Unix-specific parts of PSFTP and PSCP.
16 #ifndef HAVE_NO_SYS_SELECT_H
17 #include <sys/select.h>
25 * In PSFTP our selects are synchronous, so these functions are
28 int uxsel_input_add(int fd, int rwx) { return 0; }
29 void uxsel_input_remove(int id) { }
31 char *x_get_default(const char *key)
33 return NULL; /* this is a stub */
36 void platform_get_x11_auth(char *display, int *protocol,
37 unsigned char *data, int *datalen)
39 /* Do nothing, therefore no auth. */
43 * Default settings that are specific to PSFTP.
45 char *platform_default_s(const char *name)
50 int platform_default_i(const char *name, int def)
55 FontSpec platform_default_fontspec(const char *name)
62 Filename platform_default_filename(const char *name)
65 if (!strcmp(name, "LogFileName"))
66 strcpy(ret.path, "putty.log");
72 char *get_ttymode(void *frontend, const char *mode) { return NULL; }
74 int get_userpass_input(prompts_t *p, unsigned char *in, int inlen)
77 ret = cmdline_get_passwd_input(p, in, inlen);
79 ret = console_get_userpass_input(p, in, inlen);
84 * Set local current directory. Returns NULL on success, or else an
85 * error message which must be freed after printing.
87 char *psftp_lcd(char *dir)
90 return dupprintf("%s: chdir: %s", dir, strerror(errno));
96 * Get local current directory. Returns a string which must be
99 char *psftp_getcwd(void)
104 buffer = snewn(size, char);
106 ret = getcwd(buffer, size);
109 if (errno != ERANGE) {
111 return dupprintf("[cwd unavailable: %s]", strerror(errno));
114 * Otherwise, ERANGE was returned, meaning the buffer
118 buffer = sresize(buffer, size, char);
126 RFile *open_existing_file(char *name, uint64 *size,
127 unsigned long *mtime, unsigned long *atime)
132 fd = open(name, O_RDONLY);
139 if (size || mtime || atime) {
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;
160 int read_from_file(RFile *f, void *buffer, int length)
162 return read(f->fd, buffer, length);
165 void close_rfile(RFile *f)
176 WFile *open_new_file(char *name)
181 fd = open(name, O_CREAT | O_TRUNC | O_WRONLY, 0666);
187 ret->name = dupstr(name);
193 WFile *open_existing_wfile(char *name, uint64 *size)
198 fd = open(name, O_APPEND | O_WRONLY);
207 if (fstat(fd, &statbuf) < 0) {
208 fprintf(stderr, "%s: stat: %s\n", name, strerror(errno));
209 memset(&statbuf, 0, sizeof(statbuf));
212 *size = uint64_make((statbuf.st_size >> 16) >> 16,
219 int write_to_file(WFile *f, void *buffer, int length)
221 char *p = (char *)buffer;
224 /* Keep trying until we've really written as much as we can. */
226 int ret = write(f->fd, p, length);
242 void set_file_times(WFile *f, unsigned long mtime, unsigned long atime)
252 /* Closes and frees the WFile */
253 void close_wfile(WFile *f)
260 /* Seek offset bytes through file, from whence, where whence is
261 FROM_START, FROM_CURRENT, or FROM_END */
262 int seek_file(WFile *f, uint64 offset, int whence)
267 fileofft = (((off_t) offset.hi << 16) << 16) + offset.lo;
271 lseek_whence = SEEK_SET;
274 lseek_whence = SEEK_CUR;
277 lseek_whence = SEEK_END;
283 return lseek(f->fd, fileofft, lseek_whence) >= 0 ? 0 : -1;
286 uint64 get_file_posn(WFile *f)
291 fileofft = lseek(f->fd, (off_t) 0, SEEK_CUR);
293 ret = uint64_make((fileofft >> 16) >> 16, fileofft);
298 int file_type(char *name)
302 if (stat(name, &statbuf) < 0) {
304 fprintf(stderr, "%s: stat: %s\n", name, strerror(errno));
305 return FILE_TYPE_NONEXISTENT;
308 if (S_ISREG(statbuf.st_mode))
309 return FILE_TYPE_FILE;
311 if (S_ISDIR(statbuf.st_mode))
312 return FILE_TYPE_DIRECTORY;
314 return FILE_TYPE_WEIRD;
321 DirHandle *open_directory(char *name)
330 ret = snew(DirHandle);
335 char *read_filename(DirHandle *dir)
340 de = readdir(dir->dir);
343 } while ((de->d_name[0] == '.' &&
344 (de->d_name[1] == '\0' ||
345 (de->d_name[1] == '.' && de->d_name[2] == '\0'))));
347 return dupstr(de->d_name);
350 void close_directory(DirHandle *dir)
356 int test_wildcard(char *name, int cmdline)
360 if (stat(name, &statbuf) == 0) {
361 return WCTYPE_FILENAME;
362 } else if (cmdline) {
364 * On Unix, we never need to parse wildcards coming from
365 * the command line, because the shell will have expanded
366 * them into a filename list already.
368 return WCTYPE_NONEXISTENT;
371 int ret = WCTYPE_NONEXISTENT;
373 if (glob(name, GLOB_ERR, NULL, &globbed) == 0) {
374 if (globbed.gl_pathc > 0)
375 ret = WCTYPE_WILDCARD;
384 * Actually return matching file names for a local wildcard.
386 struct WildcardMatcher {
390 WildcardMatcher *begin_wildcard_matching(char *name) {
391 WildcardMatcher *ret = snew(WildcardMatcher);
393 if (glob(name, 0, NULL, &ret->globbed) < 0) {
402 char *wildcard_get_filename(WildcardMatcher *dir) {
403 if (dir->i < dir->globbed.gl_pathc) {
404 return dupstr(dir->globbed.gl_pathv[dir->i++]);
408 void finish_wildcard_matching(WildcardMatcher *dir) {
409 globfree(&dir->globbed);
413 int vet_filename(char *name)
415 if (strchr(name, '/'))
418 if (name[0] == '.' && (!name[1] || (name[1] == '.' && !name[2])))
424 int create_directory(char *name)
426 return mkdir(name, 0777) == 0;
429 char *dir_file_cat(char *dir, char *file)
431 return dupcat(dir, "/", file, NULL);
435 * Do a select() between all currently active network fds and
438 static int ssh_sftp_do_select(int include_stdin, int no_fds_ok)
440 fd_set rset, wset, xset;
441 int i, fdcount, fdsize, *fdlist;
442 int fd, fdstate, rwx, ret, maxfd;
443 long now = GETTICKCOUNT();
446 fdcount = fdsize = 0;
450 /* Count the currently active fds. */
452 for (fd = first_fd(&fdstate, &rwx); fd >= 0;
453 fd = next_fd(&fdstate, &rwx)) i++;
455 if (i < 1 && !no_fds_ok)
456 return -1; /* doom */
458 /* Expand the fdlist buffer if necessary. */
461 fdlist = sresize(fdlist, fdsize, int);
470 * Add all currently open fds to the select sets, and store
471 * them in fdlist as well.
474 for (fd = first_fd(&fdstate, &rwx); fd >= 0;
475 fd = next_fd(&fdstate, &rwx)) {
476 fdlist[fdcount++] = fd;
478 FD_SET_MAX(fd, maxfd, rset);
480 FD_SET_MAX(fd, maxfd, wset);
482 FD_SET_MAX(fd, maxfd, xset);
486 FD_SET_MAX(0, maxfd, rset);
490 struct timeval tv, *ptv;
492 if (run_timers(now, &next)) {
493 ticks = next - GETTICKCOUNT();
495 ticks = 1; /* just in case */
496 tv.tv_sec = ticks / 1000;
497 tv.tv_usec = ticks % 1000 * 1000;
502 ret = select(maxfd, &rset, &wset, &xset, ptv);
506 long newnow = GETTICKCOUNT();
508 * Check to see whether the system clock has
509 * changed massively during the select.
511 if (newnow - now < 0 || newnow - now > next - now) {
513 * If so, look at the elapsed time in the
514 * select and use it to compute a new
517 long othernow = now + tv.tv_sec * 1000 + tv.tv_usec / 1000;
518 /* So we'd like GETTICKCOUNT to have returned othernow,
519 * but instead it return newnow. Hence ... */
520 tickcount_offset += othernow - newnow;
526 } while (ret < 0 && errno != EINTR);
534 for (i = 0; i < fdcount; i++) {
537 * We must process exceptional notifications before
538 * ordinary readability ones, or we may go straight
539 * past the urgent marker.
541 if (FD_ISSET(fd, &xset))
542 select_result(fd, 4);
543 if (FD_ISSET(fd, &rset))
544 select_result(fd, 1);
545 if (FD_ISSET(fd, &wset))
546 select_result(fd, 2);
551 return FD_ISSET(0, &rset) ? 1 : 0;
555 * Wait for some network data and process it.
557 int ssh_sftp_loop_iteration(void)
559 return ssh_sftp_do_select(FALSE, FALSE);
563 * Read a PSFTP command line from stdin.
565 char *ssh_sftp_get_cmdline(char *prompt, int no_fds_ok)
568 int buflen, bufsize, ret;
570 fputs(prompt, stdout);
574 buflen = bufsize = 0;
577 ret = ssh_sftp_do_select(TRUE, no_fds_ok);
579 printf("connection died\n");
580 return NULL; /* woop woop */
583 if (buflen >= bufsize) {
584 bufsize = buflen + 512;
585 buf = sresize(buf, bufsize, char);
587 ret = read(0, buf+buflen, 1);
593 /* eof on stdin; no error, but no answer either */
597 if (buf[buflen++] == '\n') {
598 /* we have a full line */
606 * Main program: do platform-specific initialisation and then call
609 int main(int argc, char *argv[])
612 return psftp_main(argc, argv);