2 * uxsftp.c: the Unix-specific parts of PSFTP and PSCP.
21 * In PSFTP our selects are synchronous, so these functions are
24 int uxsel_input_add(int fd, int rwx) { return 0; }
25 void uxsel_input_remove(int id) { }
27 char *x_get_default(const char *key)
29 return NULL; /* this is a stub */
32 void platform_get_x11_auth(char *display, int *protocol,
33 unsigned char *data, int *datalen)
35 /* Do nothing, therefore no auth. */
39 * Default settings that are specific to PSFTP.
41 char *platform_default_s(const char *name)
46 int platform_default_i(const char *name, int def)
51 FontSpec platform_default_fontspec(const char *name)
58 Filename platform_default_filename(const char *name)
61 if (!strcmp(name, "LogFileName"))
62 strcpy(ret.path, "putty.log");
68 char *get_ttymode(void *frontend, const char *mode) { return NULL; }
71 * Stubs for the GUI feedback mechanism in Windows PSCP.
73 void gui_update_stats(char *name, unsigned long size,
74 int percentage, unsigned long elapsed,
75 unsigned long done, unsigned long eta,
76 unsigned long ratebs) {}
77 void gui_send_errcount(int list, int errs) {}
78 void gui_send_char(int is_stderr, int c) {}
79 void gui_enable(char *arg) {}
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, unsigned long *size,
126 unsigned long *mtime, unsigned long *atime)
131 fd = open(name, O_RDONLY);
138 if (size || mtime || atime) {
140 if (fstat(fd, &statbuf) < 0) {
141 fprintf(stderr, "%s: stat: %s\n", name, strerror(errno));
142 memset(&statbuf, 0, sizeof(statbuf));
146 *size = statbuf.st_size;
149 *mtime = statbuf.st_mtime;
152 *atime = statbuf.st_atime;
158 int read_from_file(RFile *f, void *buffer, int length)
160 return read(f->fd, buffer, length);
163 void close_rfile(RFile *f)
174 WFile *open_new_file(char *name)
179 fd = open(name, O_CREAT | O_TRUNC | O_WRONLY, 0666);
185 ret->name = dupstr(name);
190 int write_to_file(WFile *f, void *buffer, int length)
192 char *p = (char *)buffer;
195 /* Keep trying until we've really written as much as we can. */
197 int ret = write(f->fd, p, length);
213 void set_file_times(WFile *f, unsigned long mtime, unsigned long atime)
223 /* Closes and frees the WFile */
224 void close_wfile(WFile *f)
231 int file_type(char *name)
235 if (stat(name, &statbuf) < 0) {
237 fprintf(stderr, "%s: stat: %s\n", name, strerror(errno));
238 return FILE_TYPE_NONEXISTENT;
241 if (S_ISREG(statbuf.st_mode))
242 return FILE_TYPE_FILE;
244 if (S_ISDIR(statbuf.st_mode))
245 return FILE_TYPE_DIRECTORY;
247 return FILE_TYPE_WEIRD;
254 DirHandle *open_directory(char *name)
263 ret = snew(DirHandle);
268 char *read_filename(DirHandle *dir)
273 de = readdir(dir->dir);
276 } while ((de->d_name[0] == '.' &&
277 (de->d_name[1] == '\0' ||
278 (de->d_name[1] == '.' && de->d_name[2] == '\0'))));
280 return dupstr(de->d_name);
283 void close_directory(DirHandle *dir)
289 int test_wildcard(char *name, int cmdline)
293 if (stat(name, &statbuf) == 0) {
294 return WCTYPE_FILENAME;
295 } else if (cmdline) {
297 * On Unix, we never need to parse wildcards coming from
298 * the command line, because the shell will have expanded
299 * them into a filename list already.
301 return WCTYPE_NONEXISTENT;
304 int ret = WCTYPE_NONEXISTENT;
306 if (glob(name, GLOB_ERR, NULL, &globbed) == 0) {
307 if (globbed.gl_pathc > 0)
308 ret = WCTYPE_WILDCARD;
317 * Actually return matching file names for a local wildcard.
319 struct WildcardMatcher {
323 WildcardMatcher *begin_wildcard_matching(char *name) {
324 WildcardMatcher *ret = snew(WildcardMatcher);
326 if (glob(name, 0, NULL, &ret->globbed) < 0) {
335 char *wildcard_get_filename(WildcardMatcher *dir) {
336 if (dir->i < dir->globbed.gl_pathc) {
337 return dupstr(dir->globbed.gl_pathv[dir->i++]);
341 void finish_wildcard_matching(WildcardMatcher *dir) {
342 globfree(&dir->globbed);
346 int vet_filename(char *name)
348 if (strchr(name, '/'))
351 if (name[0] == '.' && (!name[1] || (name[1] == '.' && !name[2])))
357 int create_directory(char *name)
359 return mkdir(name, 0777) == 0;
362 char *dir_file_cat(char *dir, char *file)
364 return dupcat(dir, "/", file, NULL);
368 * Do a select() between all currently active network fds and
371 static int ssh_sftp_do_select(int include_stdin, int no_fds_ok)
373 fd_set rset, wset, xset;
374 int i, fdcount, fdsize, *fdlist;
375 int fd, fdstate, rwx, ret, maxfd;
376 long now = GETTICKCOUNT();
379 fdcount = fdsize = 0;
383 /* Count the currently active fds. */
385 for (fd = first_fd(&fdstate, &rwx); fd >= 0;
386 fd = next_fd(&fdstate, &rwx)) i++;
388 if (i < 1 && !no_fds_ok)
389 return -1; /* doom */
391 /* Expand the fdlist buffer if necessary. */
394 fdlist = sresize(fdlist, fdsize, int);
403 * Add all currently open fds to the select sets, and store
404 * them in fdlist as well.
407 for (fd = first_fd(&fdstate, &rwx); fd >= 0;
408 fd = next_fd(&fdstate, &rwx)) {
409 fdlist[fdcount++] = fd;
411 FD_SET_MAX(fd, maxfd, rset);
413 FD_SET_MAX(fd, maxfd, wset);
415 FD_SET_MAX(fd, maxfd, xset);
419 FD_SET_MAX(0, maxfd, rset);
423 struct timeval tv, *ptv;
425 if (run_timers(now, &next)) {
426 ticks = next - GETTICKCOUNT();
428 ticks = 1; /* just in case */
429 tv.tv_sec = ticks / 1000;
430 tv.tv_usec = ticks % 1000 * 1000;
435 ret = select(maxfd, &rset, &wset, &xset, ptv);
439 long newnow = GETTICKCOUNT();
441 * Check to see whether the system clock has
442 * changed massively during the select.
444 if (newnow - now < 0 || newnow - now > next - now) {
446 * If so, look at the elapsed time in the
447 * select and use it to compute a new
450 long othernow = now + tv.tv_sec * 1000 + tv.tv_usec / 1000;
451 /* So we'd like GETTICKCOUNT to have returned othernow,
452 * but instead it return newnow. Hence ... */
453 tickcount_offset += othernow - newnow;
459 } while (ret < 0 && errno != EINTR);
467 for (i = 0; i < fdcount; i++) {
470 * We must process exceptional notifications before
471 * ordinary readability ones, or we may go straight
472 * past the urgent marker.
474 if (FD_ISSET(fd, &xset))
475 select_result(fd, 4);
476 if (FD_ISSET(fd, &rset))
477 select_result(fd, 1);
478 if (FD_ISSET(fd, &wset))
479 select_result(fd, 2);
484 return FD_ISSET(0, &rset) ? 1 : 0;
488 * Wait for some network data and process it.
490 int ssh_sftp_loop_iteration(void)
492 return ssh_sftp_do_select(FALSE, FALSE);
496 * Read a PSFTP command line from stdin.
498 char *ssh_sftp_get_cmdline(char *prompt, int no_fds_ok)
501 int buflen, bufsize, ret;
503 fputs(prompt, stdout);
507 buflen = bufsize = 0;
510 ret = ssh_sftp_do_select(TRUE, no_fds_ok);
512 printf("connection died\n");
513 return NULL; /* woop woop */
516 if (buflen >= bufsize) {
517 bufsize = buflen + 512;
518 buf = sresize(buf, bufsize, char);
520 ret = read(0, buf+buflen, 1);
526 /* eof on stdin; no error, but no answer either */
530 if (buf[buflen++] == '\n') {
531 /* we have a full line */
539 * Main program: do platform-specific initialisation and then call
542 int main(int argc, char *argv[])
545 return psftp_main(argc, argv);