| /* $Id$ */ |
| /************************************************************************** |
| * files.c * |
| * * |
| * Copyright (C) 1999-2003 Chris Allegretta * |
| * This program is free software; you can redistribute it and/or modify * |
| * it under the terms of the GNU General Public License as published by * |
| * the Free Software Foundation; either version 2, or (at your option) * |
| * any later version. * |
| * * |
| * This program is distributed in the hope that it will be useful, * |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| * GNU General Public License for more details. * |
| * * |
| * You should have received a copy of the GNU General Public License * |
| * along with this program; if not, write to the Free Software * |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * |
| * * |
| **************************************************************************/ |
| |
| #include "config.h" |
| |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <sys/stat.h> |
| #include <utime.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <ctype.h> |
| #include <dirent.h> |
| #include <pwd.h> |
| #include <assert.h> |
| #include "proto.h" |
| #include "nano.h" |
| |
| #ifndef NANO_SMALL |
| static int fileformat = 0; /* 0 = *nix, 1 = DOS, 2 = Mac */ |
| #endif |
| |
| /* Load file into edit buffer - takes data from file struct. */ |
| void load_file(int update) |
| { |
| current = fileage; |
| |
| #ifdef ENABLE_MULTIBUFFER |
| /* if update is zero, add a new entry to the open_files structure; |
| otherwise, update the current entry (the latter is needed in the |
| case of the alternate spell checker) */ |
| add_open_file(update); |
| #endif |
| |
| #ifdef ENABLE_COLOR |
| update_color(); |
| edit_refresh(); |
| #endif |
| } |
| |
| /* What happens when there is no file to open? aiee! */ |
| void new_file(void) |
| { |
| fileage = make_new_node(NULL); |
| fileage->data = charalloc(1); |
| fileage->data[0] = '\0'; |
| filebot = fileage; |
| edittop = fileage; |
| editbot = fileage; |
| current = fileage; |
| current_x = 0; |
| totlines = 1; |
| totsize = 0; |
| |
| #ifdef ENABLE_MULTIBUFFER |
| /* if there aren't any entries in open_files, create the entry for |
| this new file; without this, if nano is started without a filename |
| on the command line, a new file will be created, but it will be |
| given no open_files entry */ |
| if (open_files == NULL) { |
| add_open_file(0); |
| /* turn off view mode in this case; this is for consistency |
| whether multibuffers are compiled in or not */ |
| UNSET(VIEW_MODE); |
| } |
| #else |
| /* if multibuffers haven't been compiled in, turn off view mode |
| unconditionally; otherwise, don't turn them off (except in the |
| above case), so that we can view multiple files properly */ |
| UNSET(VIEW_MODE); |
| #endif |
| |
| #ifdef ENABLE_COLOR |
| update_color(); |
| edit_refresh(); |
| #endif |
| } |
| |
| filestruct *read_line(char *buf, filestruct *prev, int *line1ins, int len) |
| { |
| filestruct *fileptr = (filestruct *)nmalloc(sizeof(filestruct)); |
| |
| /* nulls to newlines; len is the string's real length here */ |
| unsunder(buf, len); |
| |
| assert(strlen(buf) == len); |
| |
| fileptr->data = mallocstrcpy(NULL, buf); |
| |
| #ifndef NANO_SMALL |
| /* If it's a DOS file (CRLF), and file conversion isn't disabled, |
| strip out the CR part */ |
| if (!ISSET(NO_CONVERT) && len > 0 && buf[len - 1] == '\r') { |
| fileptr->data[len - 1] = '\0'; |
| totsize--; |
| |
| if (fileformat == 0) |
| fileformat = 1; |
| } |
| #endif |
| |
| if (*line1ins != 0 || fileage == NULL) { |
| /* Special case, insert with cursor on 1st line. */ |
| fileptr->prev = NULL; |
| fileptr->next = fileage; |
| fileptr->lineno = 1; |
| if (*line1ins != 0) { |
| *line1ins = 0; |
| /* If we're inserting into the first line of the file, then |
| we want to make sure that our edit buffer stays on the |
| first line (and that fileage stays up to date!) */ |
| edittop = fileptr; |
| } else |
| filebot = fileptr; |
| fileage = fileptr; |
| } else { |
| assert(prev != NULL); |
| fileptr->prev = prev; |
| fileptr->next = NULL; |
| fileptr->lineno = prev->lineno + 1; |
| prev->next = fileptr; |
| } |
| |
| return fileptr; |
| } |
| |
| int read_file(FILE *f, const char *filename, int quiet) |
| { |
| int num_lines = 0, len = 0; |
| char input = '\0'; /* current input character */ |
| char *buf; |
| long i = 0, bufx = 128; |
| filestruct *fileptr = current, *tmp = NULL; |
| #ifndef NANO_SMALL |
| int old_no_convert = ISSET(NO_CONVERT); |
| #endif |
| int line1ins = 0; |
| int input_int; |
| |
| buf = charalloc(bufx); |
| buf[0] = '\0'; |
| |
| if (current != NULL) { |
| if (current == fileage) |
| line1ins = 1; |
| else |
| fileptr = current->prev; |
| tmp = fileptr; |
| } |
| |
| /* For the assertion in read_line(), it must be true that if current is |
| * NULL then so is fileage. */ |
| assert(current != NULL || fileage == NULL); |
| |
| /* Read the entire file into file struct. */ |
| while ((input_int = getc(f)) != EOF) { |
| input = (char)input_int; |
| #ifndef NANO_SMALL |
| /* If the file has binary chars in it, don't stupidly |
| assume it's a DOS or Mac formatted file! */ |
| if (!ISSET(NO_CONVERT) && is_cntrl_char((int)input) != 0 |
| && input != '\t' && input != '\r' && input != '\n') |
| SET(NO_CONVERT); |
| #endif |
| |
| if (input == '\n') { |
| |
| /* read in the line properly */ |
| fileptr = read_line(buf, fileptr, &line1ins, len); |
| |
| /* reset the line length, in preparation for the next line */ |
| len = 0; |
| |
| num_lines++; |
| buf[0] = '\0'; |
| i = 0; |
| #ifndef NANO_SMALL |
| /* If it's a Mac file (no LF just a CR), and file conversion |
| isn't disabled, handle it! */ |
| } else if (!ISSET(NO_CONVERT) && i > 0 && buf[i - 1] == '\r') { |
| fileformat = 2; |
| |
| /* read in the line properly */ |
| fileptr = read_line(buf, fileptr, &line1ins, len); |
| |
| /* reset the line length, in preparation for the next line; |
| since we've already read in the next character, reset it |
| to 1 instead of 0 */ |
| len = 1; |
| |
| num_lines++; |
| totsize++; |
| buf[0] = input; |
| buf[1] = '\0'; |
| i = 1; |
| #endif |
| } else { |
| |
| /* Calculate the total length of the line; it might have |
| nulls in it, so we can't just use strlen(). */ |
| len++; |
| |
| /* Now we allocate a bigger buffer 128 characters at a time. |
| If we allocate a lot of space for one line, we may indeed |
| have to use a buffer this big later on, so we don't |
| decrease it at all. We do free it at the end, though. */ |
| if (i >= bufx - 1) { |
| bufx += 128; |
| buf = nrealloc(buf, bufx); |
| } |
| buf[i] = input; |
| buf[i + 1] = '\0'; |
| i++; |
| } |
| totsize++; |
| } |
| |
| /* This conditional duplicates previous read_byte() behavior; |
| perhaps this could use some better handling. */ |
| if (ferror(f)) |
| nperror(filename); |
| fclose(f); |
| |
| /* Did we not get a newline but still have stuff to do? */ |
| if (len > 0) { |
| #ifndef NANO_SMALL |
| /* If file conversion isn't disabled, the last character in |
| this file is a CR and fileformat isn't set yet, make sure |
| it's set to Mac format */ |
| if (!ISSET(NO_CONVERT) && buf[len - 1] == '\r' && fileformat == 0) |
| fileformat = 2; |
| #endif |
| |
| /* read in the LAST line properly */ |
| fileptr = read_line(buf, fileptr, &line1ins, len); |
| |
| num_lines++; |
| totsize++; |
| buf[0] = '\0'; |
| } |
| #ifndef NANO_SMALL |
| else if (!ISSET(NO_CONVERT) && input == '\r') { |
| /* If file conversion isn't disabled and the last character in |
| this file is a CR, read it in properly as a (Mac format) |
| line */ |
| buf[0] = input; |
| buf[1] = '\0'; |
| len = 1; |
| fileptr = read_line(buf, fileptr, &line1ins, len); |
| num_lines++; |
| totsize++; |
| buf[0] = '\0'; |
| } |
| #endif |
| |
| free(buf); |
| |
| #ifndef NANO_SMALL |
| /* If NO_CONVERT wasn't set before we read the file, but it is now, |
| unset it again. */ |
| if (!old_no_convert && ISSET(NO_CONVERT)) |
| UNSET(NO_CONVERT); |
| #endif |
| |
| /* Did we even GET a file if we don't already have one? */ |
| if (totsize == 0 || fileptr == NULL) |
| new_file(); |
| |
| /* Did we try to insert a file of 0 bytes? */ |
| if (num_lines != 0) { |
| if (current != NULL) { |
| fileptr->next = current; |
| current->prev = fileptr; |
| renumber(current); |
| current_x = 0; |
| placewewant = 0; |
| } else if (fileptr->next == NULL) { |
| filebot = fileptr; |
| new_magicline(); |
| totsize--; |
| load_file(quiet); |
| } |
| } |
| |
| #ifndef NANO_SMALL |
| if (fileformat == 2) |
| statusbar(__("Read %d line (Converted from Mac format)", |
| "Read %d lines (Converted from Mac format)", |
| num_lines), num_lines); |
| else if (fileformat == 1) |
| statusbar(__("Read %d line (Converted from DOS format)", |
| "Read %d lines (Converted from DOS format)", |
| num_lines), num_lines); |
| else |
| #endif |
| statusbar(__("Read %d line", "Read %d lines", num_lines), |
| num_lines); |
| |
| totlines += num_lines; |
| |
| return 1; |
| } |
| |
| /* Open the file (and decide if it exists). */ |
| int open_file(const char *filename, int insert, int quiet) |
| { |
| int fd; |
| FILE *f; |
| struct stat fileinfo; |
| |
| if (filename[0] == '\0' || stat(filename, &fileinfo) == -1) { |
| if (insert && !quiet) { |
| statusbar(_("\"%s\" not found"), filename); |
| return -1; |
| } else { |
| /* We have a new file */ |
| statusbar(_("New File")); |
| new_file(); |
| } |
| } else if ((fd = open(filename, O_RDONLY)) == -1) { |
| /* If we're in multibuffer mode, don't be quiet when an error |
| occurs while opening a file */ |
| if (!quiet |
| #ifdef ENABLE_MULTIBUFFER |
| || ISSET(MULTIBUFFER) |
| #endif |
| ) |
| statusbar("%s: %s", strerror(errno), filename); |
| if (!insert) |
| new_file(); |
| return -1; |
| } else { /* File is A-OK */ |
| if (S_ISDIR(fileinfo.st_mode) || S_ISCHR(fileinfo.st_mode) || |
| S_ISBLK(fileinfo.st_mode)) { |
| if (S_ISDIR(fileinfo.st_mode)) |
| statusbar(_("\"%s\" is a directory"), filename); |
| else |
| /* Don't open character or block files. Sorry, /dev/sndstat! */ |
| statusbar(_("File \"%s\" is a device file"), filename); |
| |
| if (!insert) |
| new_file(); |
| return -1; |
| } |
| if (!quiet) |
| statusbar(_("Reading File")); |
| f = fdopen(fd, "rb"); /* Binary for our own line-end munging */ |
| if (f == NULL) { |
| nperror("fdopen"); |
| return -1; |
| } |
| read_file(f, filename, quiet); |
| #ifndef NANO_SMALL |
| stat(filename, &originalfilestat); |
| #endif |
| } |
| |
| return 1; |
| } |
| |
| /* This function will return the name of the first available extension |
| * of a filename (starting with the filename, then filename.1, etc). |
| * Memory is allocated for the return value. If no writable extension |
| * exists, we return "". */ |
| char *get_next_filename(const char *name) |
| { |
| int i = 0; |
| char *buf = NULL; |
| struct stat fs; |
| |
| buf = charalloc(strlen(name) + num_of_digits(INT_MAX) + 2); |
| strcpy(buf, name); |
| |
| while (1) { |
| |
| if (stat(buf, &fs) == -1) |
| return buf; |
| if (i == INT_MAX) |
| break; |
| |
| i++; |
| strcpy(buf, name); |
| sprintf(&buf[strlen(name)], ".%d", i); |
| } |
| |
| /* We get here only if there is no possible save file. */ |
| buf[0] = '\0'; |
| |
| return buf; |
| } |
| |
| int do_insertfile(int loading_file) |
| { |
| int i, old_current_x = current_x; |
| char *realname = NULL; |
| static char *inspath = NULL; |
| |
| if (inspath == NULL) { |
| inspath = charalloc(1); |
| inspath[0] = '\0'; |
| } |
| |
| wrap_reset(); |
| |
| #if !defined(DISABLE_BROWSER) || (!defined(DISABLE_MOUSE) && defined(NCURSES_MOUSE_VERSION)) |
| currshortcut = insertfile_list; |
| #endif |
| |
| #ifndef DISABLE_OPERATINGDIR |
| if (operating_dir != NULL && strcmp(operating_dir, ".") != 0) |
| #ifdef ENABLE_MULTIBUFFER |
| if (ISSET(MULTIBUFFER)) |
| i = statusq(1, insertfile_list, inspath, |
| #ifndef NANO_SMALL |
| 0, |
| #endif |
| _("File to insert into new buffer [from %s] "), |
| operating_dir); |
| else |
| #endif |
| i = statusq(1, insertfile_list, inspath, |
| #ifndef NANO_SMALL |
| 0, |
| #endif |
| _("File to insert [from %s] "), |
| operating_dir); |
| |
| else |
| #endif |
| #ifdef ENABLE_MULTIBUFFER |
| if (ISSET(MULTIBUFFER)) |
| i = statusq(1, insertfile_list, inspath, |
| #ifndef NANO_SMALL |
| 0, |
| #endif |
| _("File to insert into new buffer [from ./] ")); |
| else |
| #endif /* ENABLE_MULTIBUFFER */ |
| i = statusq(1, insertfile_list, inspath, |
| #ifndef NANO_SMALL |
| 0, |
| #endif |
| _("File to insert [from ./] ")); |
| |
| if (i != -1) { |
| inspath = mallocstrcpy(inspath, answer); |
| #ifdef DEBUG |
| fprintf(stderr, _("filename is %s\n"), answer); |
| #endif |
| |
| realname = real_dir_from_tilde(answer); |
| |
| #ifndef DISABLE_BROWSER |
| if (i == NANO_TOFILES_KEY) { |
| char *tmp = do_browse_from(realname); |
| |
| #if !defined(DISABLE_HELP) || (!defined(DISABLE_MOUSE) && defined(NCURSES_MOUSE_VERSION)) |
| currshortcut = insertfile_list; |
| #endif |
| #ifdef DISABLE_TABCOMP |
| realname = NULL; |
| #endif |
| if (tmp != NULL) { |
| free(realname); |
| realname = tmp; |
| } else |
| return do_insertfile(loading_file); |
| } |
| #endif |
| |
| #ifndef DISABLE_OPERATINGDIR |
| if (operating_dir != NULL && check_operating_dir(realname, 0)) { |
| statusbar(_("Can't insert file from outside of %s"), |
| operating_dir); |
| return 0; |
| } |
| #endif |
| |
| #ifndef NANO_SMALL |
| #ifdef ENABLE_MULTIBUFFER |
| if (i == TOGGLE_LOAD_KEY) { |
| /* don't allow toggling if we're in both view mode and |
| multibuffer mode now */ |
| if (!ISSET(VIEW_MODE) || !ISSET(MULTIBUFFER)) |
| TOGGLE(MULTIBUFFER); |
| return do_insertfile(ISSET(MULTIBUFFER)); |
| } |
| #endif /* ENABLE_MULTIBUFFER */ |
| if (i == NANO_EXTCMD_KEY) { |
| int ts; |
| ts = statusq(1, extcmd_list, "", 0, _("Command to execute ")); |
| if (ts == -1 || answer == NULL || answer[0] == '\0') { |
| statusbar(_("Cancelled")); |
| UNSET(KEEP_CUTBUFFER); |
| display_main_list(); |
| return 0; |
| } |
| } |
| #endif /* !NANO_SMALL */ |
| |
| #ifdef ENABLE_MULTIBUFFER |
| if (loading_file) { |
| /* update the current entry in the open_files structure */ |
| add_open_file(1); |
| new_file(); |
| UNSET(MODIFIED); |
| #ifndef NANO_SMALL |
| UNSET(MARK_ISSET); |
| #endif |
| } |
| #endif |
| |
| #ifndef NANO_SMALL |
| if (i == NANO_EXTCMD_KEY) |
| i = open_pipe(answer); |
| else |
| #endif /* NANO_SMALL */ |
| i = open_file(realname, 1, loading_file); |
| |
| #ifdef ENABLE_MULTIBUFFER |
| if (loading_file) { |
| /* if there was an error opening the file, free() realname, |
| free() fileage (which now points to the new buffer we |
| created to hold the file), reload the buffer we had open |
| before, and skip the insertion; otherwise, save realname |
| in filename and continue the insertion */ |
| if (i == -1) { |
| free(realname); |
| free(fileage); |
| load_open_file(); |
| goto skip_insert; |
| } else |
| filename = mallocstrcpy(filename, realname); |
| } |
| #endif |
| |
| free(realname); |
| |
| #ifdef DEBUG |
| dump_buffer(fileage); |
| #endif |
| |
| #ifdef ENABLE_MULTIBUFFER |
| if (loading_file) |
| load_file(0); |
| else |
| #endif |
| set_modified(); |
| |
| /* Here we want to rebuild the edit window */ |
| fix_editbot(); |
| |
| #ifdef ENABLE_MULTIBUFFER |
| /* If we've loaded another file, update the titlebar's contents */ |
| if (loading_file) { |
| clearok(topwin, FALSE); |
| titlebar(NULL); |
| |
| /* And re-init the shortcut list */ |
| shortcut_init(0); |
| } |
| #endif |
| |
| #ifdef ENABLE_MULTIBUFFER |
| if (!loading_file) { |
| #endif |
| |
| /* Restore the old x-coordinate position */ |
| current_x = old_current_x; |
| |
| #ifdef ENABLE_MULTIBUFFER |
| } |
| #endif |
| |
| /* If we've gone off the bottom, recenter; otherwise, just redraw */ |
| if (current->lineno > editbot->lineno) |
| edit_update(current, CENTER); |
| else |
| edit_refresh(); |
| |
| } else { |
| statusbar(_("Cancelled")); |
| i = 0; |
| } |
| |
| #ifdef ENABLE_MULTIBUFFER |
| skip_insert: |
| #endif |
| |
| free(inspath); |
| inspath = NULL; |
| |
| UNSET(KEEP_CUTBUFFER); |
| display_main_list(); |
| return i; |
| } |
| |
| int do_insertfile_void(void) |
| { |
| int result = 0; |
| #ifdef ENABLE_MULTIBUFFER |
| if (ISSET(VIEW_MODE)) { |
| if (ISSET(MULTIBUFFER)) |
| result = do_insertfile(1); |
| else |
| statusbar(_("Key illegal in non-multibuffer mode")); |
| } |
| else |
| result = do_insertfile(ISSET(MULTIBUFFER)); |
| #else |
| result = do_insertfile(0); |
| #endif |
| |
| display_main_list(); |
| return result; |
| } |
| |
| #ifdef ENABLE_MULTIBUFFER |
| /* Create a new openfilestruct node. */ |
| openfilestruct *make_new_opennode(openfilestruct *prevnode) |
| { |
| openfilestruct *newnode = nmalloc(sizeof(openfilestruct)); |
| |
| newnode->filename = NULL; |
| newnode->fileage = NULL; |
| newnode->filebot = NULL; |
| |
| newnode->prev = prevnode; |
| newnode->next = NULL; |
| |
| return newnode; |
| } |
| |
| /* Splice a node into an existing openfilestruct. */ |
| void splice_opennode(openfilestruct *begin, openfilestruct *newnode, |
| openfilestruct *end) |
| { |
| newnode->next = end; |
| newnode->prev = begin; |
| begin->next = newnode; |
| if (end != NULL) |
| end->prev = newnode; |
| } |
| |
| /* Unlink a node from the rest of the openfilestruct. */ |
| void unlink_opennode(const openfilestruct *fileptr) |
| { |
| assert(fileptr != NULL); |
| |
| if (fileptr->prev != NULL) |
| fileptr->prev->next = fileptr->next; |
| |
| if (fileptr->next != NULL) |
| fileptr->next->prev = fileptr->prev; |
| } |
| |
| /* Delete a node from the openfilestruct. */ |
| void delete_opennode(openfilestruct *fileptr) |
| { |
| if (fileptr != NULL) { |
| if (fileptr->filename != NULL) |
| free(fileptr->filename); |
| if (fileptr->fileage != NULL) |
| free_filestruct(fileptr->fileage); |
| free(fileptr); |
| } |
| } |
| |
| /* Deallocate all memory associated with this and later files, |
| * including the lines of text. */ |
| void free_openfilestruct(openfilestruct *src) |
| { |
| if (src != NULL) { |
| while (src->next != NULL) { |
| src = src->next; |
| delete_opennode(src->prev); |
| #ifdef DEBUG |
| fprintf(stderr, _("%s: free'd a node, YAY!\n"), "delete_opennode()"); |
| #endif |
| } |
| delete_opennode(src); |
| #ifdef DEBUG |
| fprintf(stderr, _("%s: free'd last node.\n"), "delete_opennode()"); |
| #endif |
| } |
| } |
| |
| /* |
| * Add/update an entry to the open_files openfilestruct. If update is |
| * zero, a new entry is created; otherwise, the current entry is updated. |
| * Return 0 on success or 1 on error. |
| */ |
| int add_open_file(int update) |
| { |
| openfilestruct *tmp; |
| |
| if (fileage == NULL || current == NULL || filename == NULL) |
| return 1; |
| |
| /* if no entries, make the first one */ |
| if (open_files == NULL) |
| open_files = make_new_opennode(NULL); |
| |
| else if (!update) { |
| |
| /* otherwise, if we're not updating, make a new entry for |
| open_files and splice it in after the current one */ |
| |
| #ifdef DEBUG |
| fprintf(stderr, _("filename is %s\n"), open_files->filename); |
| #endif |
| |
| tmp = make_new_opennode(NULL); |
| splice_opennode(open_files, tmp, open_files->next); |
| open_files = open_files->next; |
| } |
| |
| /* save current filename */ |
| open_files->filename = mallocstrcpy(open_files->filename, filename); |
| |
| #ifndef NANO_SMALL |
| /* save the file's stat */ |
| open_files->originalfilestat = originalfilestat; |
| #endif |
| |
| /* save current total number of lines */ |
| open_files->file_totlines = totlines; |
| |
| /* save current total size */ |
| open_files->file_totsize = totsize; |
| |
| /* save current x-coordinate position */ |
| open_files->file_current_x = current_x; |
| |
| /* save current y-coordinate position */ |
| open_files->file_current_y = current_y; |
| |
| /* save current place we want */ |
| open_files->file_placewewant = placewewant; |
| |
| /* save current line number */ |
| open_files->file_lineno = current->lineno; |
| |
| /* if we're updating, save current modification status (and marking |
| status, if available) */ |
| if (update) { |
| #ifndef NANO_SMALL |
| open_files->file_flags = (MODIFIED & ISSET(MODIFIED)) | (MARK_ISSET & ISSET(MARK_ISSET)); |
| if (ISSET(MARK_ISSET)) { |
| open_files->file_mark_beginbuf = mark_beginbuf; |
| open_files->file_mark_beginx = mark_beginx; |
| } |
| #else |
| open_files->file_flags = (MODIFIED & ISSET(MODIFIED)); |
| #endif |
| } |
| |
| /* if we're in view mode and updating, the file contents won't |
| have changed, so we won't bother resaving the filestruct |
| then; otherwise, we will */ |
| if (!(ISSET(VIEW_MODE) || !update)) { |
| /* save current file buffer */ |
| open_files->fileage = fileage; |
| open_files->filebot = filebot; |
| } |
| |
| #ifdef DEBUG |
| fprintf(stderr, _("filename is %s\n"), open_files->filename); |
| #endif |
| |
| return 0; |
| } |
| |
| /* |
| * Read the current entry in the open_files structure and set up the |
| * currently open file using that entry's information. Return 0 on |
| * success or 1 on error. |
| */ |
| int load_open_file(void) |
| { |
| if (open_files == NULL) |
| return 1; |
| |
| /* set up the filename, the file buffer, the total number of lines in |
| the file, and the total file size */ |
| filename = mallocstrcpy(filename, open_files->filename); |
| #ifndef NANO_SMALL |
| originalfilestat = open_files->originalfilestat; |
| #endif |
| fileage = open_files->fileage; |
| current = fileage; |
| filebot = open_files->filebot; |
| totlines = open_files->file_totlines; |
| totsize = open_files->file_totsize; |
| |
| /* restore modification status */ |
| if (open_files->file_flags & MODIFIED) |
| SET(MODIFIED); |
| else |
| UNSET(MODIFIED); |
| |
| #ifndef NANO_SMALL |
| /* restore marking status */ |
| if (open_files->file_flags & MARK_ISSET) { |
| mark_beginbuf = open_files->file_mark_beginbuf; |
| mark_beginx = open_files->file_mark_beginx; |
| SET(MARK_ISSET); |
| } else |
| UNSET(MARK_ISSET); |
| #endif |
| |
| #ifdef ENABLE_COLOR |
| update_color(); |
| #endif |
| |
| /* restore full file position: line number, x-coordinate, y- |
| coordinate, place we want */ |
| do_gotopos(open_files->file_lineno, open_files->file_current_x, open_files->file_current_y, open_files->file_placewewant); |
| |
| /* update the titlebar */ |
| clearok(topwin, FALSE); |
| titlebar(NULL); |
| |
| /* if we're constantly displaying the cursor position and |
| DISABLE_CURPOS isn't set, update it (and do so unconditionally, |
| in the rare case that the character count is the same but the |
| line count isn't) */ |
| if (ISSET(CONSTUPDATE) && !ISSET(DISABLE_CURPOS)) |
| do_cursorpos(0); |
| |
| /* now we're done */ |
| return 0; |
| } |
| |
| /* |
| * Open the previous entry in the open_files structure. If closing_file |
| * is zero, update the current entry before switching from it. |
| * Otherwise, we are about to close that entry, so don't bother doing so. |
| * Return 0 on success and 1 on error. |
| */ |
| int open_prevfile(int closing_file) |
| { |
| if (open_files == NULL) |
| return 1; |
| |
| /* if we're not about to close the current entry, update it before |
| doing anything */ |
| if (!closing_file) |
| add_open_file(1); |
| |
| if (open_files->prev == NULL && open_files->next == NULL) { |
| |
| /* only one file open */ |
| if (!closing_file) |
| statusbar(_("No more open files")); |
| return 1; |
| } |
| |
| if (open_files->prev != NULL) { |
| open_files = open_files->prev; |
| |
| #ifdef DEBUG |
| fprintf(stderr, _("filename is %s\n"), open_files->filename); |
| #endif |
| |
| } |
| |
| else if (open_files->next != NULL) { |
| |
| /* if we're at the beginning, wrap around to the end */ |
| while (open_files->next != NULL) |
| open_files = open_files->next; |
| |
| #ifdef DEBUG |
| fprintf(stderr, _("filename is %s\n"), open_files->filename); |
| #endif |
| |
| } |
| |
| load_open_file(); |
| |
| statusbar(_("Switched to %s"), |
| ((open_files->filename[0] == '\0') ? "New Buffer" : open_files->filename)); |
| |
| #ifdef DEBUG |
| dump_buffer(current); |
| #endif |
| |
| return 0; |
| } |
| |
| /* This function is used by the shortcut list. */ |
| int open_prevfile_void(void) |
| { |
| return open_prevfile(0); |
| } |
| |
| /* |
| * Open the next entry in the open_files structure. If closing_file is |
| * zero, update the current entry before switching from it. Otherwise, we |
| * are about to close that entry, so don't bother doing so. Return 0 on |
| * success and 1 on error. |
| */ |
| int open_nextfile(int closing_file) |
| { |
| if (open_files == NULL) |
| return 1; |
| |
| /* if we're not about to close the current entry, update it before |
| doing anything */ |
| if (!closing_file) |
| add_open_file(1); |
| |
| if (open_files->prev == NULL && open_files->next == NULL) { |
| |
| /* only one file open */ |
| if (!closing_file) |
| statusbar(_("No more open files")); |
| return 1; |
| } |
| |
| if (open_files->next != NULL) { |
| open_files = open_files->next; |
| |
| #ifdef DEBUG |
| fprintf(stderr, _("filename is %s\n"), open_files->filename); |
| #endif |
| |
| } |
| else if (open_files->prev != NULL) { |
| |
| /* if we're at the end, wrap around to the beginning */ |
| while (open_files->prev != NULL) { |
| open_files = open_files->prev; |
| |
| #ifdef DEBUG |
| fprintf(stderr, _("filename is %s\n"), open_files->filename); |
| #endif |
| |
| } |
| } |
| |
| load_open_file(); |
| |
| statusbar(_("Switched to %s"), |
| ((open_files->filename[0] == '\0') ? "New Buffer" : open_files->filename)); |
| |
| #ifdef DEBUG |
| dump_buffer(current); |
| #endif |
| |
| return 0; |
| } |
| |
| /* This function is used by the shortcut list. */ |
| int open_nextfile_void(void) |
| { |
| return open_nextfile(0); |
| } |
| |
| /* |
| * Delete an entry from the open_files filestruct. After deletion of an |
| * entry, the next or previous entry is opened, whichever is found first. |
| * Return 0 on success or 1 on error. |
| */ |
| int close_open_file(void) |
| { |
| openfilestruct *tmp; |
| |
| if (open_files == NULL) |
| return 1; |
| |
| /* make sure open_files->fileage and fileage, and open_files->filebot |
| and filebot, are in sync; they might not be if lines have been cut |
| from the top or bottom of the file */ |
| open_files->fileage = fileage; |
| open_files->filebot = filebot; |
| |
| tmp = open_files; |
| if (open_nextfile(1)) { |
| if (open_prevfile(1)) |
| return 1; |
| } |
| |
| unlink_opennode(tmp); |
| delete_opennode(tmp); |
| |
| shortcut_init(0); |
| display_main_list(); |
| return 0; |
| } |
| #endif /* MULTIBUFFER */ |
| |
| #if !defined(DISABLE_SPELLER) || !defined(DISABLE_OPERATINGDIR) |
| /* |
| * When passed "[relative path]" or "[relative path][filename]" in |
| * origpath, return "[full path]" or "[full path][filename]" on success, |
| * or NULL on error. This is still done if the file doesn't exist but |
| * the relative path does (since the file could exist in memory but not |
| * yet on disk); it is not done if the relative path doesn't exist (since |
| * the first call to chdir() will fail then). |
| */ |
| char *get_full_path(const char *origpath) |
| { |
| char *newpath = NULL, *last_slash, *d_here, *d_there, *d_there_file, tmp; |
| int path_only, last_slash_index; |
| struct stat fileinfo; |
| char *expanded_origpath; |
| |
| /* first, get the current directory, and tack a slash onto the end of |
| it, unless it turns out to be "/", in which case leave it alone */ |
| |
| #ifdef PATH_MAX |
| d_here = getcwd(NULL, PATH_MAX + 1); |
| #else |
| d_here = getcwd(NULL, 0); |
| #endif |
| |
| if (d_here != NULL) { |
| |
| align(&d_here); |
| if (strcmp(d_here, "/")) { |
| d_here = nrealloc(d_here, strlen(d_here) + 2); |
| strcat(d_here, "/"); |
| } |
| |
| /* stat origpath; if stat() fails, assume that origpath refers to |
| a new file that hasn't been saved to disk yet (i. e. set |
| path_only to 0); if stat() succeeds, set path_only to 0 if |
| origpath doesn't refer to a directory, or to 1 if it does */ |
| path_only = !stat(origpath, &fileinfo) && S_ISDIR(fileinfo.st_mode); |
| |
| expanded_origpath = real_dir_from_tilde(origpath); |
| /* save the value of origpath in both d_there and d_there_file */ |
| d_there = mallocstrcpy(NULL, expanded_origpath); |
| d_there_file = mallocstrcpy(NULL, expanded_origpath); |
| free(expanded_origpath); |
| |
| /* if we have a path but no filename, tack slashes onto the ends |
| of both d_there and d_there_file, if they don't end in slashes |
| already */ |
| if (path_only) { |
| tmp = d_there[strlen(d_there) - 1]; |
| if (tmp != '/') { |
| d_there = nrealloc(d_there, strlen(d_there) + 2); |
| strcat(d_there, "/"); |
| d_there_file = nrealloc(d_there_file, strlen(d_there_file) + 2); |
| strcat(d_there_file, "/"); |
| } |
| } |
| |
| /* search for the last slash in d_there */ |
| last_slash = strrchr(d_there, '/'); |
| |
| /* if we didn't find one, copy d_here into d_there; all data is |
| then set up */ |
| if (last_slash == NULL) |
| d_there = mallocstrcpy(d_there, d_here); |
| else { |
| /* otherwise, remove all non-path elements from d_there |
| (i. e. everything after the last slash) */ |
| last_slash_index = strlen(d_there) - strlen(last_slash); |
| null_at(&d_there, last_slash_index + 1); |
| |
| /* and remove all non-file elements from d_there_file (i. e. |
| everything before and including the last slash); if we |
| have a path but no filename, don't do anything */ |
| if (!path_only) { |
| last_slash = strrchr(d_there_file, '/'); |
| last_slash++; |
| strcpy(d_there_file, last_slash); |
| align(&d_there_file); |
| } |
| |
| /* now go to the path specified in d_there */ |
| if (chdir(d_there) != -1) { |
| /* get the full pathname, and save it back in d_there, |
| tacking a slash on the end if we have a path but no |
| filename; if the saving fails, get out */ |
| |
| free(d_there); |
| |
| #ifdef PATH_MAX |
| d_there = getcwd(NULL, PATH_MAX + 1); |
| #else |
| d_there = getcwd(NULL, 0); |
| #endif |
| |
| align(&d_there); |
| if (d_there != NULL) { |
| |
| /* add a slash to d_there, unless it's "/", in which |
| case we don't need it */ |
| if (strcmp(d_there, "/")) { |
| d_there = nrealloc(d_there, strlen(d_there) + 2); |
| strcat(d_there, "/"); |
| } |
| } |
| else |
| return NULL; |
| } |
| |
| /* finally, go back to where we were before, d_here (no error |
| checking is done on this chdir(), because we can do |
| nothing if it fails) */ |
| chdir(d_here); |
| } |
| |
| /* all data is set up; fill in newpath */ |
| |
| /* if we have a path and a filename, newpath = d_there + |
| d_there_file; otherwise, newpath = d_there */ |
| if (!path_only) { |
| newpath = charalloc(strlen(d_there) + strlen(d_there_file) + 1); |
| strcpy(newpath, d_there); |
| strcat(newpath, d_there_file); |
| } |
| else { |
| newpath = charalloc(strlen(d_there) + 1); |
| strcpy(newpath, d_there); |
| } |
| |
| /* finally, clean up */ |
| free(d_there_file); |
| free(d_there); |
| free(d_here); |
| } |
| |
| return newpath; |
| } |
| #endif /* !DISABLE_SPELLER || !DISABLE_OPERATINGDIR */ |
| |
| #ifndef DISABLE_SPELLER |
| /* |
| * This function accepts a path and returns the full path (via |
| * get_full_path()). On error, if the path doesn't reference a |
| * directory, or if the directory isn't writable, it returns NULL. |
| */ |
| char *check_writable_directory(const char *path) |
| { |
| char *full_path = get_full_path(path); |
| int writable; |
| struct stat fileinfo; |
| |
| /* if get_full_path() failed, return NULL */ |
| if (full_path == NULL) |
| return NULL; |
| |
| /* otherwise, stat() the full path to see if it's writable by the |
| user; set writable to 1 if it is, or 0 if it isn't */ |
| writable = !stat(full_path, &fileinfo) && (fileinfo.st_mode & S_IWUSR); |
| |
| /* if the full path doesn't end in a slash (meaning get_full_path() |
| found that it isn't a directory) or isn't writable, free full_path |
| and return NULL */ |
| if (full_path[strlen(full_path) - 1] != '/' || writable == 0) { |
| free(full_path); |
| return NULL; |
| } |
| |
| /* otherwise, return the full path */ |
| return full_path; |
| } |
| |
| /* |
| * This function accepts a directory name and filename prefix the same |
| * way that tempnam() does, determines the location for its temporary |
| * file the same way that tempnam() does, safely creates the temporary |
| * file there via mkstemp(), and returns the name of the temporary file |
| * the same way that tempnam() does. It does not reference the value of |
| * TMP_MAX because the total number of random filenames that it can |
| * generate using one prefix is equal to 256**6, which is a sufficiently |
| * large number to handle most cases. Since the behavior after tempnam() |
| * generates TMP_MAX random filenames is implementation-defined, my |
| * implementation is to go on generating random filenames regardless of |
| * it. |
| */ |
| char *safe_tempnam(const char *dirname, const char *filename_prefix) |
| { |
| char *full_tempdir = NULL; |
| const char *TMPDIR_env; |
| int filedesc; |
| |
| /* if $TMPDIR is set and non-empty, set tempdir to it, run it through |
| get_full_path(), and save the result in full_tempdir; otherwise, |
| leave full_tempdir set to NULL */ |
| TMPDIR_env = getenv("TMPDIR"); |
| if (TMPDIR_env != NULL && TMPDIR_env[0] != '\0') |
| full_tempdir = check_writable_directory(TMPDIR_env); |
| |
| /* if $TMPDIR is blank or isn't set, or isn't a writable |
| directory, and dirname isn't NULL, try it; otherwise, leave |
| full_tempdir set to NULL */ |
| if (full_tempdir == NULL && dirname != NULL) |
| full_tempdir = check_writable_directory(dirname); |
| |
| /* if $TMPDIR is blank or isn't set, or if it isn't a writable |
| directory, and dirname is NULL, try P_tmpdir instead */ |
| if (full_tempdir == NULL) |
| full_tempdir = check_writable_directory(P_tmpdir); |
| |
| /* if P_tmpdir didn't work, use /tmp instead */ |
| if (full_tempdir == NULL) { |
| full_tempdir = charalloc(6); |
| strcpy(full_tempdir, "/tmp/"); |
| } |
| |
| full_tempdir = nrealloc(full_tempdir, strlen(full_tempdir) + 12); |
| |
| /* like tempnam(), use only the first 5 characters of the prefix */ |
| strncat(full_tempdir, filename_prefix, 5); |
| strcat(full_tempdir, "XXXXXX"); |
| filedesc = mkstemp(full_tempdir); |
| |
| /* if mkstemp succeeded, close the resulting file; afterwards, it'll be |
| 0 bytes long, so delete it; finally, return the filename (all that's |
| left of it) */ |
| if (filedesc != -1) { |
| close(filedesc); |
| unlink(full_tempdir); |
| return full_tempdir; |
| } |
| |
| free(full_tempdir); |
| return NULL; |
| } |
| #endif /* !DISABLE_SPELLER */ |
| |
| #ifndef DISABLE_OPERATINGDIR |
| /* Initialize full_operating_dir based on operating_dir. */ |
| void init_operating_dir(void) |
| { |
| assert(full_operating_dir == NULL); |
| |
| if (operating_dir == NULL) |
| return; |
| full_operating_dir = get_full_path(operating_dir); |
| |
| /* If get_full_path() failed or the operating directory is |
| inaccessible, unset operating_dir. */ |
| if (full_operating_dir == NULL || chdir(full_operating_dir) == -1) { |
| free(full_operating_dir); |
| full_operating_dir = NULL; |
| free(operating_dir); |
| operating_dir = NULL; |
| } |
| } |
| |
| /* |
| * Check to see if we're inside the operating directory. Return 0 if we |
| * are, or 1 otherwise. If allow_tabcomp is nonzero, allow incomplete |
| * names that would be matches for the operating directory, so that tab |
| * completion will work. |
| */ |
| int check_operating_dir(const char *currpath, int allow_tabcomp) |
| { |
| /* The char *full_operating_dir is global for mem cleanup, and |
| therefore we only need to get it the first time this function |
| is called; also, a relative operating directory path will |
| only be handled properly if this is done */ |
| |
| char *fullpath; |
| int retval = 0; |
| const char *whereami1, *whereami2 = NULL; |
| |
| /* if no operating directory is set, don't bother doing anything */ |
| if (operating_dir == NULL) |
| return 0; |
| |
| fullpath = get_full_path(currpath); |
| if (fullpath == NULL) |
| return 1; |
| |
| whereami1 = strstr(fullpath, full_operating_dir); |
| if (allow_tabcomp) |
| whereami2 = strstr(full_operating_dir, fullpath); |
| |
| /* if both searches failed, we're outside the operating directory */ |
| /* otherwise */ |
| /* check the search results; if the full operating directory path is |
| not at the beginning of the full current path (for normal usage) |
| and vice versa (for tab completion, if we're allowing it), we're |
| outside the operating directory */ |
| if (whereami1 != fullpath && whereami2 != full_operating_dir) |
| retval = 1; |
| free(fullpath); |
| /* otherwise, we're still inside it */ |
| return retval; |
| } |
| #endif |
| |
| /* |
| * Write a file out. If tmp is nonzero, we set the umask to 0600, |
| * we don't set the global variable filename to its name, and don't |
| * print out how many lines we wrote on the statusbar. |
| * |
| * tmp means we are writing a tmp file in a secure fashion. We use |
| * it when spell checking or dumping the file on an error. |
| * |
| * append == 1 means we are appending instead of overwriting. |
| * append == 2 means we are prepending instead of overwriting. |
| * |
| * nonamechange means don't change the current filename, it is ignored |
| * if tmp is nonzero or if we're appending/prepending. |
| */ |
| int write_file(const char *name, int tmp, int append, int nonamechange) |
| { |
| int retval = -1; |
| /* Instead of returning in this function, you should always |
| * merely set retval then goto cleanup_and_exit. */ |
| long size; |
| int lineswritten = 0; |
| char *buf = NULL; |
| const filestruct *fileptr; |
| FILE *f; |
| int fd; |
| int mask = 0, realexists, anyexists; |
| struct stat st, lst; |
| char *realname = NULL; |
| |
| if (name[0] == '\0') { |
| statusbar(_("Cancelled")); |
| return -1; |
| } |
| titlebar(NULL); |
| fileptr = fileage; |
| |
| realname = real_dir_from_tilde(name); |
| |
| #ifndef DISABLE_OPERATINGDIR |
| /* If we're writing a temporary file, we're probably going outside |
| the operating directory, so skip the operating directory test. */ |
| if (!tmp && operating_dir != NULL && check_operating_dir(realname, 0)) { |
| statusbar(_("Can't write outside of %s"), operating_dir); |
| goto cleanup_and_exit; |
| } |
| #endif |
| |
| /* Save the state of file at the end of the symlink (if there is |
| one). */ |
| realexists = stat(realname, &st); |
| |
| #ifndef NANO_SMALL |
| /* We backup only if the backup toggle is set, the file isn't |
| temporary, and the file already exists. Furthermore, if we aren't |
| appending, prepending, or writing a selection, we backup only if |
| the file has not been modified by someone else since nano opened |
| it. */ |
| if (ISSET(BACKUP_FILE) && !tmp && realexists == 0 && |
| (append != 0 || ISSET(MARK_ISSET) || |
| originalfilestat.st_mtime == st.st_mtime)) { |
| FILE *backup_file; |
| char *backupname = NULL; |
| char backupbuf[COPYFILEBLOCKSIZE]; |
| size_t bytesread; |
| struct utimbuf filetime; |
| |
| /* save the original file's access and modification times */ |
| filetime.actime = originalfilestat.st_atime; |
| filetime.modtime = originalfilestat.st_mtime; |
| |
| /* open the original file to copy to the backup */ |
| f = fopen(realname, "rb"); |
| if (f == NULL) { |
| statusbar(_("Could not read %s for backup: %s"), realname, |
| strerror(errno)); |
| return -1; |
| } |
| |
| backupname = charalloc(strlen(realname) + 2); |
| sprintf(backupname, "%s~", realname); |
| |
| /* get a file descriptor for the destination backup file */ |
| backup_file = fopen(backupname, "wb"); |
| if (backup_file == NULL) { |
| statusbar(_("Couldn't write backup: %s"), strerror(errno)); |
| free(backupname); |
| return -1; |
| } |
| |
| #ifdef DEBUG |
| fprintf(stderr, _("Backing up %s to %s\n"), realname, backupname); |
| #endif |
| |
| /* copy the file */ |
| while ((bytesread = fread(backupbuf, sizeof(char), |
| COPYFILEBLOCKSIZE, f)) > 0) |
| if (fwrite(backupbuf, sizeof(char), bytesread, backup_file) <= 0) |
| break; |
| fclose(backup_file); |
| fclose(f); |
| |
| if (chmod(backupname, originalfilestat.st_mode) == -1) |
| statusbar(_("Could not set permissions %o on backup %s: %s"), |
| originalfilestat.st_mode, backupname, |
| strerror(errno)); |
| |
| if (chown(backupname, originalfilestat.st_uid, |
| originalfilestat.st_gid) == -1) |
| statusbar(_("Could not set owner %d/group %d on backup %s: %s"), |
| originalfilestat.st_uid, originalfilestat.st_gid, |
| backupname, strerror(errno)); |
| |
| if (utime(backupname, &filetime) == -1) |
| statusbar(_("Could not set access/modification time on backup %s: %s"), |
| backupname, strerror(errno)); |
| |
| free(backupname); |
| } |
| #endif |
| |
| /* Stat the link itself for the check... */ |
| anyexists = lstat(realname, &lst); |
| |
| /* New case: if the file exists, just give up */ |
| if (tmp && anyexists != -1) |
| goto cleanup_and_exit; |
| /* NOTE: If you change this statement, you MUST CHANGE the if |
| statement below (that says: |
| if (realexists == -1 || tmp || (ISSET(NOFOLLOW_SYMLINKS) && |
| S_ISLNK(lst.st_mode))) { |
| to reflect whether or not to link/unlink/rename the file */ |
| else if (append != 2 && (!ISSET(NOFOLLOW_SYMLINKS) || !S_ISLNK(lst.st_mode) |
| || tmp)) { |
| /* Use O_EXCL if tmp is nonzero. This is now copied from joe, |
| because wiggy says so *shrug*. */ |
| if (append != 0) |
| fd = open(realname, O_WRONLY | O_CREAT | O_APPEND, (S_IRUSR | S_IWUSR)); |
| else if (tmp) |
| fd = open(realname, O_WRONLY | O_CREAT | O_EXCL, (S_IRUSR | S_IWUSR)); |
| else |
| fd = open(realname, O_WRONLY | O_CREAT | O_TRUNC, (S_IRUSR | S_IWUSR)); |
| |
| /* First, just give up if we couldn't even open the file */ |
| if (fd == -1) { |
| if (!tmp && ISSET(TEMP_OPT)) { |
| UNSET(TEMP_OPT); |
| retval = do_writeout(filename, 1, 0); |
| } else |
| statusbar(_("Could not open file for writing: %s"), |
| strerror(errno)); |
| goto cleanup_and_exit; |
| } |
| |
| } |
| /* Don't follow symlink. Create new file. */ |
| else { |
| buf = charalloc(strlen(realname) + 8); |
| strcpy(buf, realname); |
| strcat(buf, ".XXXXXX"); |
| if ((fd = mkstemp(buf)) == -1) { |
| if (ISSET(TEMP_OPT)) { |
| UNSET(TEMP_OPT); |
| retval = do_writeout(filename, 1, 0); |
| } else |
| statusbar(_("Could not open file for writing: %s"), |
| strerror(errno)); |
| goto cleanup_and_exit; |
| } |
| } |
| |
| #ifdef DEBUG |
| dump_buffer(fileage); |
| #endif |
| |
| f = fdopen(fd, append == 1 ? "ab" : "wb"); |
| if (f == NULL) { |
| statusbar(_("Could not open file for writing: %s"), strerror(errno)); |
| goto cleanup_and_exit; |
| } |
| |
| while (fileptr != NULL && fileptr->next != NULL) { |
| int data_len; |
| |
| /* Next line is so we discount the "magic line" */ |
| if (filebot == fileptr && fileptr->data[0] == '\0') |
| break; |
| |
| data_len = strlen(fileptr->data); |
| |
| /* newlines to nulls, just before we write to disk */ |
| sunder(fileptr->data); |
| |
| size = fwrite(fileptr->data, 1, data_len, f); |
| |
| /* nulls to newlines; data_len is the string's real length here */ |
| unsunder(fileptr->data, data_len); |
| |
| if (size < data_len) { |
| statusbar(_("Could not open file for writing: %s"), |
| strerror(errno)); |
| fclose(f); |
| goto cleanup_and_exit; |
| } |
| #ifdef DEBUG |
| else |
| fprintf(stderr, _("Wrote >%s\n"), fileptr->data); |
| #endif |
| #ifndef NANO_SMALL |
| if (ISSET(DOS_FILE) || ISSET(MAC_FILE)) |
| putc('\r', f); |
| |
| if (!ISSET(MAC_FILE)) |
| #endif |
| putc('\n', f); |
| |
| fileptr = fileptr->next; |
| lineswritten++; |
| } |
| |
| if (fileptr != NULL) { |
| int data_len = strlen(fileptr->data); |
| |
| /* newlines to nulls, just before we write to disk */ |
| sunder(fileptr->data); |
| |
| size = fwrite(fileptr->data, 1, data_len, f); |
| |
| /* nulls to newlines; data_len is the string's real length here */ |
| unsunder(fileptr->data, data_len); |
| |
| if (size < data_len) { |
| statusbar(_("Could not open file for writing: %s"), |
| strerror(errno)); |
| goto cleanup_and_exit; |
| } else if (data_len > 0) { |
| #ifndef NANO_SMALL |
| if (ISSET(DOS_FILE) || ISSET(MAC_FILE)) { |
| if (putc('\r', f) == EOF) { |
| statusbar(_("Could not open file for writing: %s"), |
| strerror(errno)); |
| fclose(f); |
| goto cleanup_and_exit; |
| } |
| lineswritten++; |
| } |
| |
| if (!ISSET(MAC_FILE)) |
| #endif |
| { |
| if (putc('\n', f) == EOF) { |
| statusbar(_("Could not open file for writing: %s"), |
| strerror(errno)); |
| fclose(f); |
| goto cleanup_and_exit; |
| } |
| lineswritten++; |
| } |
| } |
| } |
| |
| if (fclose(f) != 0) { |
| statusbar(_("Could not close %s: %s"), realname, strerror(errno)); |
| unlink(buf); |
| goto cleanup_and_exit; |
| } |
| |
| /* if we're prepending, open the real file, and append it here */ |
| if (append == 2) { |
| int fd_source, fd_dest; |
| FILE *f_source, *f_dest; |
| int prechar; |
| |
| if ((fd_dest = open(buf, O_WRONLY | O_APPEND, (S_IRUSR | S_IWUSR))) == -1) { |
| statusbar(_("Could not reopen %s: %s"), buf, strerror(errno)); |
| goto cleanup_and_exit; |
| } |
| f_dest = fdopen(fd_dest, "wb"); |
| if (f_dest == NULL) { |
| statusbar(_("Could not reopen %s: %s"), buf, strerror(errno)); |
| close(fd_dest); |
| goto cleanup_and_exit; |
| } |
| if ((fd_source = open(realname, O_RDONLY | O_CREAT)) == -1) { |
| statusbar(_("Could not open %s for prepend: %s"), realname, strerror(errno)); |
| fclose(f_dest); |
| goto cleanup_and_exit; |
| } |
| f_source = fdopen(fd_source, "rb"); |
| if (f_source == NULL) { |
| statusbar(_("Could not open %s for prepend: %s"), realname, strerror(errno)); |
| fclose(f_dest); |
| close(fd_source); |
| goto cleanup_and_exit; |
| } |
| |
| /* Doing this in blocks is an exercise left to some other reader. */ |
| while ((prechar = getc(f_source)) != EOF) { |
| if (putc(prechar, f_dest) == EOF) { |
| statusbar(_("Could not open %s for prepend: %s"), realname, strerror(errno)); |
| fclose(f_source); |
| fclose(f_dest); |
| goto cleanup_and_exit; |
| } |
| } |
| |
| if (ferror(f_source)) { |
| statusbar(_("Could not reopen %s: %s"), buf, strerror(errno)); |
| fclose(f_source); |
| fclose(f_dest); |
| goto cleanup_and_exit; |
| } |
| |
| fclose(f_source); |
| fclose(f_dest); |
| } |
| |
| if (realexists == -1 || tmp || |
| (ISSET(NOFOLLOW_SYMLINKS) && S_ISLNK(lst.st_mode))) { |
| |
| /* Use default umask as file permissions if file is a new file. */ |
| mask = umask(0); |
| umask(mask); |
| |
| if (tmp) /* We don't want anyone reading our temporary file! */ |
| mask = S_IRUSR | S_IWUSR; |
| else |
| mask = (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | |
| S_IWOTH) & ~mask; |
| } else |
| /* Use permissions from file we are overwriting. */ |
| mask = st.st_mode; |
| |
| if (append == 2 || |
| (!tmp && (ISSET(NOFOLLOW_SYMLINKS) && S_ISLNK(lst.st_mode)))) { |
| if (unlink(realname) == -1) { |
| if (errno != ENOENT) { |
| statusbar(_("Could not open %s for writing: %s"), |
| realname, strerror(errno)); |
| unlink(buf); |
| goto cleanup_and_exit; |
| } |
| } |
| if (link(buf, realname) != -1) |
| unlink(buf); |
| else if (errno != EPERM) { |
| statusbar(_("Could not open %s for writing: %s"), |
| name, strerror(errno)); |
| unlink(buf); |
| goto cleanup_and_exit; |
| } else if (rename(buf, realname) == -1) { /* Try a rename?? */ |
| statusbar(_("Could not open %s for writing: %s"), |
| realname, strerror(errno)); |
| unlink(buf); |
| goto cleanup_and_exit; |
| } |
| } |
| if (chmod(realname, mask) == -1) |
| statusbar(_("Could not set permissions %o on %s: %s"), |
| mask, realname, strerror(errno)); |
| |
| if (!tmp && append == 0) { |
| if (!nonamechange) { |
| filename = mallocstrcpy(filename, realname); |
| #ifdef ENABLE_COLOR |
| update_color(); |
| edit_refresh(); |
| #endif |
| } |
| |
| #ifndef NANO_SMALL |
| /* Update originalfilestat to reference the file as it is now. */ |
| stat(filename, &originalfilestat); |
| #endif |
| statusbar(__("Wrote %d line", "Wrote %d lines", lineswritten), |
| lineswritten); |
| UNSET(MODIFIED); |
| titlebar(NULL); |
| } |
| |
| retval = 1; |
| |
| cleanup_and_exit: |
| free(realname); |
| free(buf); |
| return retval; |
| } |
| |
| int do_writeout(const char *path, int exiting, int append) |
| { |
| int i = 0; |
| #ifdef NANO_EXTRA |
| static int did_cred = 0; |
| #endif |
| |
| #if !defined(DISABLE_BROWSER) || (!defined(DISABLE_MOUSE) && defined(NCURSES_MOUSE_VERSION)) |
| currshortcut = writefile_list; |
| #endif |
| |
| answer = mallocstrcpy(answer, path); |
| |
| if (exiting && ISSET(TEMP_OPT)) { |
| if (filename[0] != '\0') { |
| i = write_file(answer, 0, 0, 0); |
| display_main_list(); |
| return i; |
| } else { |
| UNSET(TEMP_OPT); |
| do_exit(); |
| |
| /* They cancelled, abort quit */ |
| return -1; |
| } |
| } |
| |
| while (1) { |
| #ifndef NANO_SMALL |
| const char *formatstr, *backupstr; |
| |
| if (ISSET(MAC_FILE)) |
| formatstr = _(" [Mac Format]"); |
| else if (ISSET(DOS_FILE)) |
| formatstr = _(" [DOS Format]"); |
| else |
| formatstr = ""; |
| |
| if (ISSET(BACKUP_FILE)) |
| backupstr = _(" [Backup]"); |
| else |
| backupstr = ""; |
| |
| /* Be nice to the translation folks */ |
| if (ISSET(MARK_ISSET) && !exiting) { |
| if (append == 2) |
| i = statusq(1, writefile_list, "", 0, |
| "%s%s%s", _("Prepend Selection to File"), formatstr, backupstr); |
| else if (append == 1) |
| i = statusq(1, writefile_list, "", 0, |
| "%s%s%s", _("Append Selection to File"), formatstr, backupstr); |
| else |
| i = statusq(1, writefile_list, "", 0, |
| "%s%s%s", _("Write Selection to File"), formatstr, backupstr); |
| } else { |
| if (append == 2) |
| i = statusq(1, writefile_list, answer, 0, |
| "%s%s%s", _("File Name to Prepend to"), formatstr, backupstr); |
| else if (append == 1) |
| i = statusq(1, writefile_list, answer, 0, |
| "%s%s%s", _("File Name to Append to"), formatstr, backupstr); |
| else |
| i = statusq(1, writefile_list, answer, 0, |
| "%s%s%s", _("File Name to Write"), formatstr, backupstr); |
| } |
| #else |
| if (append == 2) |
| i = statusq(1, writefile_list, answer, |
| "%s", _("File Name to Prepend to")); |
| else if (append == 1) |
| i = statusq(1, writefile_list, answer, |
| "%s", _("File Name to Append to")); |
| else |
| i = statusq(1, writefile_list, answer, |
| "%s", _("File Name to Write")); |
| #endif /* !NANO_SMALL */ |
| |
| if (i == -1) { |
| statusbar(_("Cancelled")); |
| display_main_list(); |
| return 0; |
| } |
| |
| #ifndef DISABLE_BROWSER |
| if (i == NANO_TOFILES_KEY) { |
| char *tmp = do_browse_from(answer); |
| |
| currshortcut = writefile_list; |
| if (tmp == NULL) |
| continue; |
| free(answer); |
| answer = tmp; |
| } else |
| #endif /* !DISABLE_BROWSER */ |
| #ifndef NANO_SMALL |
| if (i == TOGGLE_DOS_KEY) { |
| UNSET(MAC_FILE); |
| TOGGLE(DOS_FILE); |
| continue; |
| } else if (i == TOGGLE_MAC_KEY) { |
| UNSET(DOS_FILE); |
| TOGGLE(MAC_FILE); |
| continue; |
| } else if (i == TOGGLE_BACKUP_KEY) { |
| TOGGLE(BACKUP_FILE); |
| continue; |
| } else |
| #endif /* !NANO_SMALL */ |
| if (i == NANO_PREPEND_KEY) { |
| append = append == 2 ? 0 : 2; |
| continue; |
| } else if (i == NANO_APPEND_KEY) { |
| append = append == 1 ? 0 : 1; |
| continue; |
| } |
| |
| #ifdef DEBUG |
| fprintf(stderr, _("filename is %s\n"), answer); |
| #endif |
| |
| #ifdef NANO_EXTRA |
| if (exiting && !ISSET(TEMP_OPT) && !strcasecmp(answer, "zzy") |
| && !did_cred) { |
| do_credits(); |
| did_cred = 1; |
| return -1; |
| } |
| #endif |
| if (append == 0 && strcmp(answer, filename) != 0) { |
| struct stat st; |
| |
| if (!stat(answer, &st)) { |
| i = do_yesno(0, 0, _("File exists, OVERWRITE ?")); |
| |
| if (i == 0 || i == -1) |
| continue; |
| } |
| } |
| |
| #ifndef NANO_SMALL |
| /* Here's where we allow the selected text to be written to |
| a separate file. */ |
| if (ISSET(MARK_ISSET) && !exiting) { |
| filestruct *fileagebak = fileage; |
| filestruct *filebotbak = filebot; |
| filestruct *cutback = cutbuffer; |
| int oldmod = ISSET(MODIFIED); |
| /* write_file() unsets the MODIFIED flag. */ |
| |
| cutbuffer = NULL; |
| |
| /* Put the marked text in the cutbuffer without changing |
| the open file. */ |
| cut_marked_segment(current, current_x, mark_beginbuf, |
| mark_beginx, 0); |
| |
| fileage = cutbuffer; |
| filebot = get_cutbottom(); |
| i = write_file(answer, 0, append, 1); |
| |
| /* Now restore everything */ |
| free_filestruct(cutbuffer); |
| fileage = fileagebak; |
| filebot = filebotbak; |
| cutbuffer = cutback; |
| if (oldmod) |
| set_modified(); |
| } else |
| #endif /* !NANO_SMALL */ |
| i = write_file(answer, 0, append, 0); |
| |
| #ifdef ENABLE_MULTIBUFFER |
| /* If we're not about to exit, update the current entry in |
| the open_files structure. */ |
| if (!exiting) |
| add_open_file(1); |
| #endif |
| display_main_list(); |
| return i; |
| } /* while (1) */ |
| } |
| |
| int do_writeout_void(void) |
| { |
| return do_writeout(filename, 0, 0); |
| } |
| |
| /* Return a malloc()ed string containing the actual directory, used |
| * to convert ~user and ~/ notation... */ |
| char *real_dir_from_tilde(const char *buf) |
| { |
| char *dirtmp = NULL; |
| |
| if (buf[0] == '~') { |
| size_t i; |
| const struct passwd *userdata; |
| |
| /* Figure how how much of the str we need to compare */ |
| for (i = 1; buf[i] != '/' && buf[i] != '\0'; i++) |
| ; |
| |
| if (i == 1) { |
| /* Determine home directory using getpwent(), don't rely on |
| $HOME */ |
| uid_t euid = geteuid(); |
| |
| do { |
| userdata = getpwent(); |
| } while (userdata != NULL && userdata->pw_uid != euid); |
| } else { |
| do { |
| userdata = getpwent(); |
| } while (userdata != NULL && |
| strncmp(userdata->pw_name, buf + 1, i - 1)); |
| } |
| endpwent(); |
| |
| if (userdata != NULL) { /* User found */ |
| dirtmp = charalloc(strlen(userdata->pw_dir) + strlen(buf + i) + 1); |
| sprintf(dirtmp, "%s%s", userdata->pw_dir, &buf[i]); |
| } |
| } |
| |
| if (dirtmp == NULL) |
| dirtmp = mallocstrcpy(dirtmp, buf); |
| |
| return dirtmp; |
| } |
| |
| #ifndef DISABLE_TABCOMP |
| /* Tack a slash onto the string we're completing if it's a directory. We |
| * assume there is room for one more character on the end of buf. The |
| * return value says whether buf is a directory. */ |
| int append_slash_if_dir(char *buf, int *lastwastab, int *place) |
| { |
| char *dirptr = real_dir_from_tilde(buf); |
| struct stat fileinfo; |
| int ret = 0; |
| |
| assert(dirptr != buf); |
| |
| if (stat(dirptr, &fileinfo) != -1 && S_ISDIR(fileinfo.st_mode)) { |
| strncat(buf, "/", 1); |
| (*place)++; |
| /* now we start over again with # of tabs so far */ |
| *lastwastab = 0; |
| ret = 1; |
| } |
| |
| free(dirptr); |
| return ret; |
| } |
| |
| /* |
| * These functions (username_tab_completion(), cwd_tab_completion(), and |
| * input_tab()) were taken from busybox 0.46 (cmdedit.c). Here is the |
| * notice from that file: |
| * |
| * Termios command line History and Editting, originally |
| * intended for NetBSD sh (ash) |
| * Copyright (c) 1999 |
| * Main code: Adam Rogoyski <rogoyski@cs.utexas.edu> |
| * Etc: Dave Cinege <dcinege@psychosis.com> |
| * Majorly adjusted/re-written for busybox: |
| * Erik Andersen <andersee@debian.org> |
| * |
| * You may use this code as you wish, so long as the original author(s) |
| * are attributed in any redistributions of the source code. |
| * This code is 'as is' with no warranty. |
| * This code may safely be consumed by a BSD or GPL license. |
| */ |
| |
| char **username_tab_completion(char *buf, int *num_matches) |
| { |
| char **matches = (char **)NULL; |
| char *matchline = NULL; |
| struct passwd *userdata; |
| |
| *num_matches = 0; |
| matches = nmalloc(BUFSIZ * sizeof(char *)); |
| |
| strcat(buf, "*"); |
| |
| while ((userdata = getpwent()) != NULL) { |
| |
| if (check_wildcard_match(userdata->pw_name, &buf[1]) == TRUE) { |
| |
| /* Cool, found a match. Add it to the list |
| * This makes a lot more sense to me (Chris) this way... |
| */ |
| |
| #ifndef DISABLE_OPERATINGDIR |
| /* ...unless the match exists outside the operating |
| directory, in which case just go to the next match */ |
| |
| if (operating_dir != NULL) { |
| if (check_operating_dir(userdata->pw_dir, 1) != 0) |
| continue; |
| } |
| #endif |
| |
| matchline = charalloc(strlen(userdata->pw_name) + 2); |
| sprintf(matchline, "~%s", userdata->pw_name); |
| matches[*num_matches] = matchline; |
| ++*num_matches; |
| |
| /* If there's no more room, bail out */ |
| if (*num_matches == BUFSIZ) |
| break; |
| } |
| } |
| endpwent(); |
| |
| return matches; |
| } |
| |
| /* This was originally called exe_n_cwd_tab_completion, but we're not |
| worried about executables, only filenames :> */ |
| |
| char **cwd_tab_completion(char *buf, int *num_matches) |
| { |
| char *dirname, *dirtmp = NULL, *tmp = NULL, *tmp2 = NULL; |
| char **matches = (char **)NULL; |
| DIR *dir; |
| struct dirent *next; |
| |
| matches = nmalloc(BUFSIZ * sizeof(char *)); |
| |
| /* Stick a wildcard onto the buf, for later use */ |
| strcat(buf, "*"); |
| |
| /* Okie, if there's a / in the buffer, strip out the directory part */ |
| if (buf[0] != '\0' && strstr(buf, "/") != NULL) { |
| dirname = charalloc(strlen(buf) + 1); |
| tmp = buf + strlen(buf); |
| while (*tmp != '/' && tmp != buf) |
| tmp--; |
| |
| tmp++; |
| |
| strncpy(dirname, buf, tmp - buf + 1); |
| dirname[tmp - buf] = '\0'; |
| |
| } else { |
| |
| #ifdef PATH_MAX |
| if ((dirname = getcwd(NULL, PATH_MAX + 1)) == NULL) |
| #else |
| /* The better, but apparently segfault-causing way */ |
| if ((dirname = getcwd(NULL, 0)) == NULL) |
| #endif /* PATH_MAX */ |
| return matches; |
| else |
| tmp = buf; |
| } |
| |
| #ifdef DEBUG |
| fprintf(stderr, "\nDir = %s\n", dirname); |
| fprintf(stderr, "\nbuf = %s\n", buf); |
| fprintf(stderr, "\ntmp = %s\n", tmp); |
| #endif |
| |
| dirtmp = real_dir_from_tilde(dirname); |
| free(dirname); |
| dirname = dirtmp; |
| |
| #ifdef DEBUG |
| fprintf(stderr, "\nDir = %s\n", dirname); |
| fprintf(stderr, "\nbuf = %s\n", buf); |
| fprintf(stderr, "\ntmp = %s\n", tmp); |
| #endif |
| |
| |
| dir = opendir(dirname); |
| if (dir == NULL) { |
| /* Don't print an error, just shut up and return */ |
| *num_matches = 0; |
| beep(); |
| return matches; |
| } |
| while ((next = readdir(dir)) != NULL) { |
| |
| #ifdef DEBUG |
| fprintf(stderr, "Comparing \'%s\'\n", next->d_name); |
| #endif |
| /* See if this matches */ |
| if (check_wildcard_match(next->d_name, tmp) == TRUE) { |
| |
| /* Cool, found a match. Add it to the list |
| * This makes a lot more sense to me (Chris) this way... |
| */ |
| |
| #ifndef DISABLE_OPERATINGDIR |
| /* ...unless the match exists outside the operating |
| directory, in which case just go to the next match; to |
| properly do operating directory checking, we have to add the |
| directory name to the beginning of the proposed match |
| before we check it */ |
| |
| if (operating_dir != NULL) { |
| tmp2 = charalloc(strlen(dirname) + strlen(next->d_name) + 2); |
| strcpy(tmp2, dirname); |
| strcat(tmp2, "/"); |
| strcat(tmp2, next->d_name); |
| if (check_operating_dir(tmp2, 1)) { |
| free(tmp2); |
| continue; |
| } |
| free(tmp2); |
| } |
| #endif |
| |
| tmp2 = NULL; |
| tmp2 = charalloc(strlen(next->d_name) + 1); |
| strcpy(tmp2, next->d_name); |
| matches[*num_matches] = tmp2; |
| ++*num_matches; |
| |
| /* If there's no more room, bail out */ |
| if (*num_matches == BUFSIZ) |
| break; |
| } |
| } |
| |
| return matches; |
| } |
| |
| /* This function now has an arg which refers to how much the statusbar |
| * (place) should be advanced, i.e. the new cursor pos. */ |
| char *input_tab(char *buf, int place, int *lastwastab, int *newplace, int *list) |
| { |
| /* Do TAB completion */ |
| static int num_matches = 0, match_matches = 0; |
| static char **matches = (char **)NULL; |
| int pos = place, i = 0, col = 0, editline = 0; |
| int longestname = 0, is_dir = 0; |
| char *foo; |
| |
| *list = 0; |
| |
| if (*lastwastab == FALSE) { |
| char *tmp, *copyto, *matchbuf; |
| |
| *lastwastab = 1; |
| |
| /* Make a local copy of the string -- up to the position of the |
| cursor */ |
| matchbuf = (char *)nmalloc((strlen(buf) + 2) * sizeof(char)); |
| memset(matchbuf, '\0', (strlen(buf) + 2)); |
| |
| strncpy(matchbuf, buf, place); |
| tmp = matchbuf; |
| |
| /* skip any leading white space */ |
| while (*tmp && isspace((int)*tmp)) |
| ++tmp; |
| |
| /* Free up any memory already allocated */ |
| if (matches != NULL) { |
| for (i = i; i < num_matches; i++) |
| free(matches[i]); |
| free(matches); |
| matches = (char **)NULL; |
| num_matches = 0; |
| } |
| |
| /* If the word starts with `~' and there is no slash in the word, |
| * then try completing this word as a username. */ |
| |
| /* If the original string begins with a tilde, and the part |
| we're trying to tab-complete doesn't contain a slash, copy |
| the part we're tab-completing into buf, so tab completion |
| will result in buf's containing only the tab-completed |
| username. */ |
| if (buf[0] == '~' && strchr(tmp, '/') == NULL) { |
| buf = mallocstrcpy(buf, tmp); |
| matches = username_tab_completion(tmp, &num_matches); |
| } |
| /* If we're in the middle of the original line, copy the string |
| only up to the cursor position into buf, so tab completion |
| will result in buf's containing only the tab-completed |
| path/filename. */ |
| else if (strlen(buf) > strlen(tmp)) |
| buf = mallocstrcpy(buf, tmp); |
| |
| /* Try to match everything in the current working directory that |
| * matches. */ |
| if (matches == NULL) |
| matches = cwd_tab_completion(tmp, &num_matches); |
| |
| /* Don't leak memory */ |
| free(matchbuf); |
| |
| #ifdef DEBUG |
| fprintf(stderr, "%d matches found...\n", num_matches); |
| #endif |
| /* Did we find exactly one match? */ |
| switch (num_matches) { |
| case 0: |
| blank_edit(); |
| wrefresh(edit); |
| break; |
| case 1: |
| |
| buf = nrealloc(buf, strlen(buf) + strlen(matches[0]) + 1); |
| |
| if (buf[0] != '\0' && strstr(buf, "/") != NULL) { |
| for (tmp = buf + strlen(buf); *tmp != '/' && tmp != buf; |
| tmp--); |
| tmp++; |
| } else |
| tmp = buf; |
| |
| if (!strcmp(tmp, matches[0])) |
| is_dir = append_slash_if_dir(buf, lastwastab, newplace); |
| |
| if (is_dir != 0) |
| break; |
| |
| copyto = tmp; |
| for (pos = 0; *tmp == matches[0][pos] && |
| pos <= strlen(matches[0]); pos++) |
| tmp++; |
| |
| /* write out the matched name */ |
| strncpy(copyto, matches[0], strlen(matches[0]) + 1); |
| *newplace += strlen(matches[0]) - pos; |
| |
| /* if an exact match is typed in and Tab is pressed, |
| *newplace will now be negative; in that case, make it |
| zero, so that the cursor will stay where it is instead of |
| moving backward */ |
| if (*newplace < 0) |
| *newplace = 0; |
| |
| /* Is it a directory? */ |
| append_slash_if_dir(buf, lastwastab, newplace); |
| |
| break; |
| default: |
| /* Check to see if all matches share a beginning, and, if so, |
| tack it onto buf and then beep */ |
| |
| if (buf[0] != '\0' && strstr(buf, "/") != NULL) { |
| for (tmp = buf + strlen(buf); *tmp != '/' && tmp != buf; |
| tmp--); |
| tmp++; |
| } else |
| tmp = buf; |
| |
| for (pos = 0; *tmp == matches[0][pos] && *tmp != '\0' && |
| pos <= strlen(matches[0]); pos++) |
| tmp++; |
| |
| while (1) { |
| match_matches = 0; |
| |
| for (i = 0; i < num_matches; i++) { |
| if (matches[i][pos] == 0) |
| break; |
| else if (matches[i][pos] == matches[0][pos]) |
| match_matches++; |
| } |
| if (match_matches == num_matches && |
| (i == num_matches || matches[i] != 0)) { |
| /* All the matches have the same character at pos+1, |
| so paste it into buf... */ |
| buf = nrealloc(buf, strlen(buf) + 2); |
| strncat(buf, matches[0] + pos, 1); |
| *newplace += 1; |
| pos++; |
| } else { |
| beep(); |
| break; |
| } |
| } |
| break; |
| } |
| } else { |
| /* Ok -- the last char was a TAB. Since they |
| * just hit TAB again, print a list of all the |
| * available choices... */ |
| if (matches != NULL && num_matches > 1) { |
| |
| /* Blank the edit window, and print the matches out there */ |
| blank_edit(); |
| wmove(edit, 0, 0); |
| |
| editline = 0; |
| |
| /* Figure out the length of the longest filename */ |
| for (i = 0; i < num_matches; i++) |
| if (strlen(matches[i]) > longestname) |
| longestname = strlen(matches[i]); |
| |
| if (longestname > COLS - 1) |
| longestname = COLS - 1; |
| |
| foo = charalloc(longestname + 5); |
| |
| /* Print the list of matches */ |
| for (i = 0, col = 0; i < num_matches; i++) { |
| |
| /* make each filename shown be the same length as the longest |
| filename, with two spaces at the end */ |
| snprintf(foo, longestname + 1, matches[i]); |
| while (strlen(foo) < longestname) |
| strcat(foo, " "); |
| |
| strcat(foo, " "); |
| |
| /* Disable el cursor */ |
| curs_set(0); |
| /* now, put the match on the screen */ |
| waddnstr(edit, foo, strlen(foo)); |
| col += strlen(foo); |
| |
| /* And if the next match isn't going to fit on the |
| line, move to the next one */ |
| if (col > (COLS - longestname) && matches[i + 1] != NULL) { |
| editline++; |
| wmove(edit, editline, 0); |
| if (editline == editwinrows - 1) { |
| waddstr(edit, _("(more)")); |
| break; |
| } |
| col = 0; |
| } |
| } |
| free(foo); |
| wrefresh(edit); |
| *list = 1; |
| } else |
| beep(); |
| } |
| |
| /* Only refresh the edit window if we don't have a list of filename |
| matches on it */ |
| if (*list == 0) |
| edit_refresh(); |
| curs_set(1); |
| return buf; |
| } |
| #endif /* !DISABLE_TABCOMP */ |
| |
| #ifndef DISABLE_BROWSER |
| /* Return the stat of the file pointed to by path */ |
| struct stat filestat(const char *path) |
| { |
| struct stat st; |
| |
| stat(path, &st); |
| return st; |
| } |
| |
| /* Our sort routine for file listings - sort directories before |
| * files, and then alphabetically. */ |
| int diralphasort(const void *va, const void *vb) |
| { |
| struct stat fileinfo; |
| const char *a = *(char *const *)va, *b = *(char *const *)vb; |
| int aisdir = stat(a, &fileinfo) != -1 && S_ISDIR(fileinfo.st_mode); |
| int bisdir = stat(b, &fileinfo) != -1 && S_ISDIR(fileinfo.st_mode); |
| |
| if (aisdir != 0 && bisdir == 0) |
| return -1; |
| if (aisdir == 0 && bisdir != 0) |
| return 1; |
| |
| return strcasecmp(a, b); |
| } |
| |
| /* Free our malloc()ed memory */ |
| void free_charptrarray(char **array, int len) |
| { |
| for (; len > 0; len--) |
| free(array[len - 1]); |
| free(array); |
| } |
| |
| /* Only print the last part of a path; isn't there a shell |
| * command for this? */ |
| const char *tail(const char *foo) |
| { |
| const char *tmp = foo + strlen(foo); |
| |
| while (*tmp != '/' && tmp != foo) |
| tmp--; |
| |
| if (*tmp == '/') |
| tmp++; |
| |
| return tmp; |
| } |
| |
| /* Strip one dir from the end of a string. */ |
| void striponedir(char *foo) |
| { |
| char *tmp; |
| |
| /* Don't strip the root dir */ |
| if (!strcmp(foo, "/")) |
| return; |
| |
| tmp = foo + strlen(foo); |
| if (*tmp == '/') |
| tmp--; |
| |
| while (*tmp != '/' && tmp != foo) |
| tmp--; |
| |
| if (tmp != foo) |
| *tmp = '\0'; |
| else { /* SPK may need to make a 'default' path here */ |
| if (*tmp != '/') |
| *tmp = '.'; |
| *(tmp + 1) = '\0'; |
| } |
| } |
| |
| /* Initialize the browser code, including the list of files in *path */ |
| char **browser_init(const char *path, int *longest, int *numents) |
| { |
| DIR *dir; |
| struct dirent *next; |
| char **filelist; |
| int i = 0; |
| size_t path_len; |
| |
| dir = opendir(path); |
| if (dir == NULL) |
| return NULL; |
| |
| *numents = 0; |
| while ((next = readdir(dir)) != NULL) { |
| if (!strcmp(next->d_name, ".")) |
| continue; |
| (*numents)++; |
| if (strlen(next->d_name) > *longest) |
| *longest = strlen(next->d_name); |
| } |
| rewinddir(dir); |
| *longest += 10; |
| |
| filelist = nmalloc(*numents * sizeof (char *)); |
| |
| if (!strcmp(path, "/")) |
| path = ""; |
| path_len = strlen(path); |
| |
| while ((next = readdir(dir)) != NULL) { |
| if (!strcmp(next->d_name, ".")) |
| continue; |
| |
| filelist[i] = charalloc(strlen(next->d_name) + path_len + 2); |
| sprintf(filelist[i], "%s/%s", path, next->d_name); |
| i++; |
| } |
| |
| if (*longest > COLS - 1) |
| *longest = COLS - 1; |
| |
| return filelist; |
| } |
| |
| /* Our browser function. inpath is the path to start browsing from */ |
| char *do_browser(const char *inpath) |
| { |
| struct stat st; |
| char *foo, *retval = NULL; |
| static char *path = NULL; |
| int numents = 0, i = 0, j = 0, kbinput = 0, longest = 0, abort = 0; |
| int col = 0, selected = 0, editline = 0, width = 0, filecols = 0; |
| int lineno = 0, kb; |
| char **filelist = (char **)NULL; |
| #if !defined(DISABLE_MOUSE) && defined(NCURSES_MOUSE_VERSION) |
| MEVENT mevent; |
| #endif |
| |
| assert(inpath != NULL); |
| |
| /* If path isn't the same as inpath, we are being passed a new |
| dir as an arg. We free it here so it will be copied from |
| inpath below */ |
| if (path != NULL && strcmp(path, inpath)) { |
| free(path); |
| path = NULL; |
| } |
| |
| /* if path doesn't exist, make it so */ |
| if (path == NULL) |
| path = mallocstrcpy(NULL, inpath); |
| |
| filelist = browser_init(path, &longest, &numents); |
| foo = charalloc(longest + 8); |
| |
| /* Sort the list by directory first, then alphabetically */ |
| qsort(filelist, numents, sizeof(char *), diralphasort); |
| |
| kb = keypad_on(edit, 1); |
| titlebar(path); |
| bottombars(browser_list); |
| curs_set(0); |
| wmove(edit, 0, 0); |
| i = 0; |
| width = 0; |
| filecols = 0; |
| |
| /* Loop invariant: Microsoft sucks. */ |
| do { |
| DIR *test_dir; |
| |
| blank_statusbar_refresh(); |
| |
| #if !defined(DISABLE_HELP) || (!defined(DISABLE_MOUSE) && defined(NCURSES_MOUSE_VERSION)) |
| currshortcut = browser_list; |
| #endif |
| |
| editline = 0; |
| col = 0; |
| |
| /* Compute line number we're on now, so we don't divide by zero later */ |
| lineno = selected; |
| if (width != 0) |
| lineno /= width; |
| |
| switch (kbinput) { |
| |
| #if !defined(DISABLE_MOUSE) && defined(NCURSES_MOUSE_VERSION) |
| case KEY_MOUSE: |
| if (getmouse(&mevent) == ERR) |
| return retval; |
| |
| /* If they clicked in the edit window, they probably clicked |
| on a file */ |
| if (wenclose(edit, mevent.y, mevent.x)) { |
| int selectedbackup = selected; |
| |
| mevent.y -= 2; |
| |
| /* Longest is the width of each column. There are two |
| * spaces between each column. */ |
| selected = (lineno / editwinrows) * editwinrows * width |
| + mevent.y * width + mevent.x / (longest + 2); |
| |
| /* If they clicked beyond the end of a row, select the |
| * end of that row. */ |
| if (mevent.x > width * (longest + 2)) |
| selected--; |
| |
| /* If we're off the screen, reset to the last item. |
| If we clicked where we did last time, select this name! */ |
| if (selected > numents - 1) |
| selected = numents - 1; |
| else if (selectedbackup == selected) |
| ungetch('s'); /* Unget the 'select' key */ |
| } else /* Must be clicking a shortcut */ |
| do_mouse(); |
| |
| break; |
| #endif |
| case NANO_UP_KEY: |
| case KEY_UP: |
| case 'u': |
| if (selected - width >= 0) |
| selected -= width; |
| break; |
| case NANO_BACK_KEY: |
| case KEY_LEFT: |
| case NANO_BACKSPACE_KEY: |
| case 127: |
| case 'l': |
| if (selected > 0) |
| selected--; |
| break; |
| case KEY_DOWN: |
| case NANO_DOWN_KEY: |
| case 'd': |
| if (selected + width <= numents - 1) |
| selected += width; |
| break; |
| case KEY_RIGHT: |
| case NANO_FORWARD_KEY: |
| case 'r': |
| if (selected < numents - 1) |
| selected++; |
| break; |
| case NANO_PREVPAGE_KEY: |
| case NANO_PREVPAGE_FKEY: |
| case KEY_PPAGE: |
| case '-': |
| if (selected >= (editwinrows + lineno % editwinrows) * width) |
| selected -= (editwinrows + lineno % editwinrows) * width; |
| else |
| selected = 0; |
| break; |
| case NANO_NEXTPAGE_KEY: |
| case NANO_NEXTPAGE_FKEY: |
| case KEY_NPAGE: |
| case ' ': |
| selected += (editwinrows - lineno % editwinrows) * width; |
| if (selected >= numents) |
| selected = numents - 1; |
| break; |
| case NANO_HELP_KEY: |
| case NANO_HELP_FKEY: |
| do_help(); |
| break; |
| case KEY_ENTER: |
| case NANO_ENTER_KEY: |
| case 's': /* More Pico compatibility */ |
| case 'S': |
| /* You can't cd up from / */ |
| if (!strcmp(filelist[selected], "/..") && !strcmp(path, "/")) { |
| statusbar(_("Can't move up a directory")); |
| break; |
| } |
| |
| path = mallocstrcpy(path, filelist[selected]); |
| |
| #ifndef DISABLE_OPERATINGDIR |
| /* Note: The case of the user's being completely outside the |
| operating directory is handled elsewhere, before this |
| point */ |
| if (operating_dir != NULL) { |
| if (check_operating_dir(path, 0)) { |
| statusbar(_("Can't visit parent in restricted mode")); |
| beep(); |
| break; |
| } |
| } |
| #endif |
| |
| /* SPK for '.' path, get the current path via getcwd */ |
| if (!strcmp(path, "./..")) { |
| free(path); |
| #ifdef PATH_MAX |
| path = getcwd(NULL, PATH_MAX + 1); |
| #else |
| path = getcwd(NULL, 0); |
| #endif |
| striponedir(path); |
| align(&path); |
| free_charptrarray(filelist, numents); |
| free(foo); |
| return do_browser(path); |
| } |
| |
| st = filestat(path); |
| if (S_ISDIR(st.st_mode)) { |
| if ((test_dir = opendir(path)) == NULL) { |
| /* We can't open this dir for some reason. Complain */ |
| statusbar(_("Can't open \"%s\": %s"), path, strerror(errno)); |
| striponedir(path); |
| align(&path); |
| break; |
| } |
| closedir(test_dir); |
| |
| if (!strcmp("..", tail(path))) { |
| /* They want to go up a level, so strip off .. and the |
| current dir */ |
| striponedir(path); |
| striponedir(path); |
| align(&path); |
| } |
| |
| /* Start over again with the new path value */ |
| free_charptrarray(filelist, numents); |
| free(foo); |
| return do_browser(path); |
| } else { |
| retval = mallocstrcpy(retval, path); |
| abort = 1; |
| } |
| break; |
| /* Goto a specific directory */ |
| case 'g': /* Pico compatibility */ |
| case 'G': |
| case NANO_GOTO_KEY: |
| |
| curs_set(1); |
| j = statusq(0, gotodir_list, "", |
| #ifndef NANO_SMALL |
| 0, |
| #endif |
| _("Goto Directory")); |
| bottombars(browser_list); |
| curs_set(0); |
| |
| #ifndef DISABLE_OPERATINGDIR |
| if (operating_dir != NULL) { |
| if (check_operating_dir(answer, 0)) { |
| statusbar(_("Can't go outside of %s in restricted mode"), operating_dir); |
| break; |
| } |
| } |
| #endif |
| |
| if (j < 0) { |
| statusbar(_("Goto Cancelled")); |
| break; |
| } |
| |
| if (answer[0] != '/') { |
| char *saveanswer = mallocstrcpy(NULL, answer); |
| |
| answer = nrealloc(answer, strlen(path) + strlen(saveanswer) + 2); |
| sprintf(answer, "%s/%s", path, saveanswer); |
| free(saveanswer); |
| } |
| |
| if ((test_dir = opendir(answer)) == NULL) { |
| /* We can't open this dir for some reason. Complain */ |
| statusbar(_("Can't open \"%s\": %s"), answer, strerror(errno)); |
| break; |
| } |
| closedir(test_dir); |
| |
| /* Start over again with the new path value */ |
| path = mallocstrcpy(path, answer); |
| return do_browser(path); |
| |
| /* Stuff we want to abort the browser */ |
| case 'q': |
| case 'Q': |
| case 'e': /* Pico compatibility, yeech */ |
| case 'E': |
| case NANO_CANCEL_KEY: |
| case NANO_EXIT_FKEY: |
| abort = 1; |
| break; |
| } |
| if (abort) |
| break; |
| |
| blank_edit(); |
| |
| if (width != 0) |
| i = width * editwinrows * ((selected / width) / editwinrows); |
| else |
| i = 0; |
| |
| wmove(edit, 0, 0); |
| for (j = i; j < numents && editline <= editwinrows - 1; j++) { |
| filecols++; |
| |
| strncpy(foo, tail(filelist[j]), strlen(tail(filelist[j])) + 1); |
| while (strlen(foo) < longest) |
| strcat(foo, " "); |
| col += strlen(foo); |
| |
| /* Put file info in the string also */ |
| /* We use lstat here to detect links; then, if we find a |
| symlink, we examine it via stat() to see if it is a |
| directory or just a file symlink */ |
| lstat(filelist[j], &st); |
| if (S_ISDIR(st.st_mode)) |
| strcpy(foo + longest - 5, "(dir)"); |
| else { |
| if (S_ISLNK(st.st_mode)) { |
| /* Aha! It's a symlink! Now, is it a dir? If so, |
| mark it as such */ |
| st = filestat(filelist[j]); |
| if (S_ISDIR(st.st_mode)) |
| strcpy(foo + longest - 5, "(dir)"); |
| else |
| strcpy(foo + longest - 2, "--"); |
| } else if (st.st_size < (1 << 10)) /* less than 1 K */ |
| sprintf(foo + longest - 7, "%4d B", |
| (int) st.st_size); |
| else if (st.st_size >= (1 << 30)) /* at least 1 gig */ |
| sprintf(foo + longest - 7, "%4d GB", |
| (int) st.st_size >> 30); |
| else if (st.st_size >= (1 << 20)) /* at least 1 meg */ |
| sprintf(foo + longest - 7, "%4d MB", |
| (int) st.st_size >> 20); |
| else /* It's more than 1 k and less than a meg */ |
| sprintf(foo + longest - 7, "%4d KB", |
| (int) st.st_size >> 10); |
| } |
| |
| /* Highlight the currently selected file/dir */ |
| if (j == selected) |
| wattron(edit, A_REVERSE); |
| waddstr(edit, foo); |
| if (j == selected) |
| wattroff(edit, A_REVERSE); |
| |
| /* And add some space between the cols */ |
| waddstr(edit, " "); |
| col += 2; |
| |
| /* And if the next entry isn't going to fit on the |
| line, move to the next one */ |
| if (col > COLS - longest) { |
| editline++; |
| wmove(edit, editline, 0); |
| col = 0; |
| if (width == 0) |
| width = filecols; |
| } |
| } |
| wrefresh(edit); |
| } while ((kbinput = wgetch(edit)) != NANO_EXIT_KEY); |
| curs_set(1); |
| blank_edit(); |
| titlebar(NULL); |
| edit_refresh(); |
| kb = keypad_on(edit, kb); |
| |
| /* cleanup */ |
| free_charptrarray(filelist, numents); |
| free(foo); |
| return retval; |
| } |
| |
| /* Browser front end, checks to see if inpath has a dir in it and, if so, |
| starts do_browser from there, else from the current dir */ |
| char *do_browse_from(const char *inpath) |
| { |
| struct stat st; |
| char *tmp; |
| char *bob; |
| |
| /* If there's no / in the string, we may as well start from . */ |
| if (inpath == NULL || strchr(inpath, '/') == NULL) { |
| #ifdef PATH_MAX |
| char *from = getcwd(NULL, PATH_MAX + 1); |
| #else |
| char *from = getcwd(NULL, 0); |
| #endif |
| |
| bob = do_browser(from != NULL ? from : "./"); |
| free(from); |
| return bob; |
| } |
| |
| /* If the string is a directory, pass do_browser() that */ |
| st = filestat(inpath); |
| if (S_ISDIR(st.st_mode)) |
| return do_browser(inpath); |
| |
| tmp = mallocstrcpy(NULL, inpath); |
| /* Okay, there's a dir in there, but not at the end of the string... |
| try stripping it off */ |
| striponedir(tmp); |
| align(&tmp); |
| bob = do_browser(tmp); |
| free(tmp); |
| return bob; |
| } |
| #endif /* !DISABLE_BROWSER */ |
| |
| #ifndef NANO_SMALL |
| #ifdef ENABLE_NANORC |
| void load_history(void) |
| { |
| FILE *hist; |
| const struct passwd *userage; |
| uid_t euid = geteuid(); |
| static char *nanohist; |
| char *buf, *ptr; |
| historyheadtype *history = &search_history; |
| |
| do { |
| userage = getpwent(); |
| } while (userage != NULL && userage->pw_uid != euid); |
| endpwent(); |
| |
| /* assume do_rcfile has reported missing home dir */ |
| |
| if (userage != NULL) { |
| nanohist = nrealloc(nanohist, strlen(userage->pw_dir) + 15); |
| sprintf(nanohist, "%s/.nano_history", userage->pw_dir); |
| hist = fopen(nanohist, "r"); |
| if (!hist) { |
| if (errno != ENOENT) |
| rcfile_error(_("Unable to open ~/.nano_history file, %s"), strerror(errno)); |
| free(nanohist); |
| } else { |
| buf = charalloc(1024); |
| while (fgets(buf, 1023, hist) != 0) { |
| ptr = buf; |
| while (*ptr != '\n') |
| ptr++; |
| *ptr = '\0'; |
| if (strlen(buf)) |
| update_history(history, buf); |
| else |
| history = &replace_history; |
| } |
| fclose(hist); |
| free(buf); |
| free(nanohist); |
| UNSET(HISTORY_CHANGED); |
| } |
| } |
| } |
| |
| /* save histories to ~/.nano_history */ |
| void save_history(void) |
| { |
| FILE *hist; |
| const struct passwd *userage; |
| uid_t euid = geteuid(); |
| char *nanohist = NULL; |
| historytype *h; |
| |
| /* don't save unchanged or empty histories */ |
| if (!((search_history.count || replace_history.count) && |
| ISSET(HISTORY_CHANGED) && !ISSET(VIEW_MODE))) |
| return; |
| |
| do { |
| userage = getpwent(); |
| } while (userage != NULL && userage->pw_uid != euid); |
| endpwent(); |
| |
| if (userage != NULL) { |
| nanohist = nrealloc(nanohist, strlen(userage->pw_dir) + 15); |
| sprintf(nanohist, "%s/.nano_history", userage->pw_dir); |
| hist = fopen(nanohist, "wb"); |
| if (!hist) { |
| rcfile_msg(_("Unable to write ~/.nano_history file, %s"), strerror(errno)); |
| } else { |
| /* set rw only by owner for security ?? */ |
| chmod(nanohist, S_IRUSR | S_IWUSR); |
| /* write oldest first */ |
| for (h = search_history.tail ; h->prev ; h = h->prev) { |
| nrealloc(h->data, strlen(h->data) + 1); |
| strcat(h->data, "\n"); |
| if (fputs(h->data, hist) == EOF) { |
| rcfile_msg(_("Unable to write ~/.nano_history file, %s"), strerror(errno)); |
| goto come_from; |
| } |
| } |
| if (fputs("\n", hist) == EOF) { |
| rcfile_msg(_("Unable to write ~/.nano_history file, %s"), strerror(errno)); |
| goto come_from; |
| } |
| for (h = replace_history.tail ; h->prev ; h = h->prev) { |
| nrealloc(h->data, strlen(h->data) + 1); |
| strcat(h->data, "\n"); |
| if (fputs(h->data, hist) == EOF) { |
| rcfile_msg(_("Unable to write ~/.nano_history file, %s"), strerror(errno)); |
| goto come_from; |
| } |
| } |
| come_from: |
| fclose(hist); |
| } |
| free(nanohist); |
| } |
| } |
| #endif /* ENABLE_NANORC */ |
| #endif /* !NANO_SMALL */ |