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nano/files.c
Chris Allegretta e642197ff7 new_file() and close_open_file() fixes by DLR 
git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@735 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
2001-07-18 01:03:36 +00:00

2131 lines
51 KiB
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/* $Id$ */
/**************************************************************************
* files.c *
* *
* Copyright (C) 1999 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 1, 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/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <ctype.h>
#include <dirent.h>
#include <pwd.h>
#include "proto.h"
#include "nano.h"
#ifndef NANO_SMALL
#include <libintl.h>
#define _(string) gettext(string)
#else
#define _(string) (string)
#endif
/* Load file into edit buffer - takes data from file struct */
void load_file(void)
{
current = fileage;
#ifdef ENABLE_MULTIBUFFER
/* add a new entry to the open_files structure, and check for
duplicate entries; if a duplicate entry was found, reload the
currently open file (it may have been changed during duplicate
handling) */
if (add_open_file(0, 1) == 2)
load_open_file();
#endif
wmove(edit, current_y, current_x);
}
/* What happens when there is no file to open? aiee! */
void new_file(void)
{
fileage = nmalloc(sizeof(filestruct));
fileage->data = charalloc(1);
strcpy(fileage->data, "");
fileage->prev = NULL;
fileage->next = NULL;
fileage->lineno = 1;
filebot = fileage;
edittop = fileage;
editbot = fileage;
current = fileage;
totlines = 1;
#ifdef ENABLE_MULTIBUFFER
/* if there aren't any entries in open_files, create the entry for
this new file, and, of course, don't bother checking for
duplicates; without this, if nano is started without a filename on
the command line, a new file with no name will be created, but it
will be given no open_files entry, leading to problems later on */
if (!open_files)
add_open_file(0, 0);
#endif
UNSET(VIEW_MODE);
}
int read_byte(int fd, char *filename, char *input)
{
static char buf[BUFSIZ];
static int index = 0;
static int size = 0;
if (index == size) {
index = 0;
size = read(fd, buf, BUFSIZ);
if (size == -1) {
clear();
refresh();
resetty();
endwin();
perror(filename);
}
if (!size)
return 0;
}
*input = buf[index++];
return 1;
}
filestruct *read_line(char *buf, filestruct * prev, int *line1ins)
{
filestruct *fileptr;
fileptr = nmalloc(sizeof(filestruct));
fileptr->data = charalloc(strlen(buf) + 2);
strcpy(fileptr->data, buf);
if (*line1ins) {
/* Special case, insert with cursor on 1st line. */
fileptr->prev = NULL;
fileptr->next = fileage;
fileptr->lineno = 1;
*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!) */
fileage = fileptr;
edittop = fileptr;
} else if (fileage == NULL) {
fileage = fileptr;
fileage->lineno = 1;
fileage->next = fileage->prev = NULL;
fileptr = filebot = fileage;
} else if (prev) {
fileptr->prev = prev;
fileptr->next = NULL;
fileptr->lineno = prev->lineno + 1;
prev->next = fileptr;
} else {
die(_("read_line: not on first line and prev is NULL"));
}
return fileptr;
}
int read_file(int fd, char *filename)
{
long size, num_lines = 0, linetemp = 0;
char input[2]; /* buffer */
char *buf;
long i = 0, bufx = 128;
filestruct *fileptr = current, *tmp = NULL;
int line1ins = 0;
buf = charalloc(bufx);
buf[0] = '\0';
if (fileptr != NULL && fileptr->prev != NULL) {
fileptr = fileptr->prev;
tmp = fileptr;
} else if (fileptr != NULL && fileptr->prev == NULL) {
tmp = fileage;
current = fileage;
line1ins = 1;
}
input[1] = 0;
/* Read the entire file into file struct */
while ((size = read_byte(fd, filename, input)) > 0) {
linetemp = 0;
if (input[0] == '\n') {
fileptr = read_line(buf, fileptr, &line1ins);
num_lines++;
buf[0] = 0;
i = 0;
} else {
/* 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) {
buf = nrealloc(buf, bufx + 128);
bufx += 128;
}
buf[i] = input[0];
buf[i + 1] = 0;
i++;
}
totsize += size;
}
/* Did we not get a newline but still have stuff to do? */
if (buf[0]) {
fileptr = read_line(buf, fileptr, &line1ins);
num_lines++;
buf[0] = 0;
}
/* Did we even GET a file? */
if (totsize == 0 || fileptr == NULL) {
new_file();
statusbar(_("Read %d lines"), num_lines);
return 1;
}
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--;
/* Update the edit buffer */
load_file();
}
statusbar(_("Read %d lines"), num_lines);
totlines += num_lines;
free(buf);
close(fd);
return 1;
}
/* Open the file (and decide if it exists) */
int open_file(char *filename, int insert, int quiet)
{
int fd;
struct stat fileinfo;
if (!strcmp(filename, "") || stat(filename, &fileinfo) == -1) {
if (insert) {
if (!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 (!quiet)
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(_("File \"%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"));
read_file(fd, filename);
}
return 1;
}
int do_insertfile(int loading_file)
{
int i;
char *realname = NULL;
wrap_reset();
#ifndef DISABLE_MOUSE
currshortcut = insertfile_list;
currslen = INSERTFILE_LIST_LEN;
#endif
i = statusq(1, insertfile_list, INSERTFILE_LIST_LEN, "",
_("File to insert [from ./] "));
if (i != -1) {
#ifdef DEBUG
fprintf(stderr, _("filename is %s"), answer);
#endif
#ifndef DISABLE_TABCOMP
realname = real_dir_from_tilde(answer);
#else
realname = mallocstrcpy(realname, answer);
#endif
#ifndef DISABLE_BROWSER
if (i == NANO_TOFILES_KEY) {
char *tmp = do_browse_from(realname);
#ifndef DISABLE_MOUSE
currshortcut = insertfile_list;
currslen = INSERTFILE_LIST_LEN;
#endif
#ifdef DISABLE_TABCOMP
realname = NULL;
#endif
if (tmp != NULL)
realname = mallocstrcpy(realname, tmp);
else
return do_insertfile(loading_file);
}
#endif
#ifdef ENABLE_MULTIBUFFER
if (loading_file) {
/* update the current entry in the open_files structure; we
don't need to check for duplicate entries (the conditions
that could create them are taken care of elsewhere) */
add_open_file(1, 0);
free_filestruct(current);
new_file();
UNSET(MODIFIED);
}
#endif
i = open_file(realname, 1, 0);
#ifdef ENABLE_MULTIBUFFER
if (loading_file)
filename = mallocstrcpy(filename, realname);
#endif
free(realname);
dump_buffer(fileage);
#ifdef ENABLE_MULTIBUFFER
if (loading_file)
load_file();
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
/* If we've gone off the bottom, recenter; otherwise, just redraw */
if (current->lineno > editbot->lineno)
edit_update(current, CENTER);
else
edit_refresh();
UNSET(KEEP_CUTBUFFER);
display_main_list();
return i;
} else {
statusbar(_("Cancelled"));
UNSET(KEEP_CUTBUFFER);
display_main_list();
return 0;
}
}
int do_insertfile_void(void)
{
int result = 0;
#ifdef ENABLE_MULTIBUFFER
result = do_insertfile(ISSET(MULTIBUFFER));
#else
result = do_insertfile(0);
#endif
display_main_list();
return result;
}
#ifdef ENABLE_MULTIBUFFER
/*
* Add/update an entry to the open_files filestruct. If update is
* zero, a new entry is created; otherwise, the current entry is updated.
* If dup_fix is zero, checking for and handling duplicate entries is not
* done; otherwise, it is. Return 0 on success, 1 on error, or 2 on
* finding a duplicate entry.
*/
int add_open_file(int update, int dup_fix)
{
filestruct *tmp;
if (!current || !filename)
return 1;
/* first, if duplicate checking is allowed, do it */
if (dup_fix) {
/* if duplicates were found and handled, we're done */
if (open_file_dup_fix(update))
return 2;
}
/* if no entries, make the first one */
if (!open_files) {
open_files = make_new_node(NULL);
/* if open_files->file is NULL at the nrealloc() below, we get a
segfault */
open_files->file = open_files;
}
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"), open_files->data);
#endif
tmp = make_new_node(NULL);
splice_node(open_files, tmp, open_files->next);
open_files = open_files->next;
/* if open_files->file is NULL at the nrealloc() below, we get a
segfault */
open_files->file = open_files;
}
/* save current filename */
open_files->data = mallocstrcpy(open_files->data, filename);
/* save the full path location */
open_files->file_path = get_full_path(open_files->data);
/* 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->lineno = current->lineno;
/* save current filestruct */
open_files->file = nrealloc(open_files->file, sizeof(filestruct));
while (current->prev)
current = current->prev;
open_files->file = copy_filestruct(current);
do_gotoline(open_files->lineno, 1);
placewewant = open_files->file_placewewant;
update_line(current, current_x);
/* save current modification status */
open_files->file_modified = ISSET(MODIFIED);
#ifdef DEBUG
fprintf(stderr, _("filename is %s"), open_files->data);
#endif
return 0;
}
/*
* Update only the filename and full path stored in the current entry.
* Return 0 on success or 1 on error.
*/
int open_file_change_name(void)
{
if (!open_files || !filename)
return 1;
/* save current filename */
open_files->data = mallocstrcpy(open_files->data, filename);
/* save the full path location */
open_files->file_path = get_full_path(open_files->data);
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)
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->data);
fileage = copy_filestruct(open_files->file);
current = fileage;
totlines = open_files->file_totlines;
totsize = open_files->file_totsize;
/* since do_gotoline() resets the x-coordinate but not the
y-coordinate, set all coordinates up this way */
current_y = open_files->file_current_y;
do_gotoline(open_files->lineno, 1);
current_x = open_files->file_current_x;
placewewant = open_files->file_placewewant;
update_line(current, current_x);
/* set up modification status and update the titlebar */
if (open_files->file_modified)
SET(MODIFIED);
else
UNSET(MODIFIED);
clearok(topwin, FALSE);
titlebar(NULL);
/* if we're constantly displaying the cursor position, update it */
if (ISSET(CONSTUPDATE))
do_cursorpos();
/* now we're done */
return 0;
}
/*
* Search the open_files structure for an entry with the same value for
* the file_path member as the current entry (i. e. a duplicate entry).
* If one is found, return a pointer to it; otherwise, return NULL.
*
* Note: This should only be called inside open_file_dup_fix().
*/
filestruct *open_file_dup_search(void)
{
filestruct *tmp;
char *path;
if (!open_files || !filename)
return NULL;
tmp = open_files;
path = get_full_path(filename);
/* if there's only one entry, handle it */
if (!tmp->prev && !tmp->next) {
if (!strcmp(tmp->file_path, path))
return tmp;
}
/* otherwise, go to the beginning */
while (tmp->prev)
tmp = tmp->prev;
/* and search the entries one by one */
while (tmp) {
if (!strcmp(tmp->file_path, path)) {
/* if it's not the current entry, we've found a duplicate */
if (tmp != open_files)
return tmp;
}
/* go to the next entry */
tmp = tmp->next;
}
return NULL;
}
/*
* Search for duplicate entries in the open_files structure using
* open_file_dup_search(), and, if one is found, handle it properly.
* Return 0 if no duplicates were found, and 1 otherwise.
*/
int open_file_dup_fix(int update)
{
filestruct *tmp = open_file_dup_search();
if (!tmp)
return 0;
/* if there's only one entry, handle it */
if (!tmp->prev && !tmp->next)
return 1;
/* otherwise, if we're not updating, the user's trying to load a
duplicate; switch to the original instead */
if (!update) {
open_files = tmp;
return 1;
}
/* if we are updating, the filename's been changed via a save; it's
thus more recent than the original, so remove the original */
else {
unlink_node(tmp);
free_filestruct(tmp->file);
free(tmp->file_path);
delete_node(tmp);
}
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)
return 1;
/* if we're not about to close the current entry, update it before
doing anything; since we're only switching, we don't need to check
for duplicate entries */
if (!closing_file)
add_open_file(1, 0);
if (!open_files->prev && !open_files->next) {
/* only one file open */
if (!closing_file)
statusbar(_("No more open files"));
return 1;
}
if (open_files->prev) {
open_files = open_files->prev;
#ifdef DEBUG
fprintf(stderr, _("filename is %s"), open_files->data);
#endif
}
else if (open_files->next) {
/* if we're at the beginning, wrap around to the end */
while (open_files->next)
open_files = open_files->next;
#ifdef DEBUG
fprintf(stderr, _("filename is %s"), open_files->data);
#endif
}
load_open_file();
#ifdef DEBUG
dump_buffer(current);
#endif
return 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)
return 1;
/* if we're not about to close the current entry, update it before
doing anything; since we're only switching, we don't need to check
for duplicate entries */
if (!closing_file)
add_open_file(1, 0);
if (!open_files->prev && !open_files->next) {
/* only one file open */
if (!closing_file)
statusbar(_("No more open files"));
return 1;
}
if (open_files->next) {
open_files = open_files->next;
#ifdef DEBUG
fprintf(stderr, _("filename is %s"), open_files->data);
#endif
}
else if (open_files->prev) {
/* if we're at the end, wrap around to the beginning */
while (open_files->prev) {
open_files = open_files->prev;
#ifdef DEBUG
fprintf(stderr, _("filename is %s"), open_files->data);
#endif
}
}
load_open_file();
#ifdef DEBUG
dump_buffer(current);
#endif
return 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)
{
filestruct *tmp;
if (!open_files)
return 1;
tmp = open_files;
if (open_nextfile(1)) {
if (open_prevfile(1))
return 1;
}
unlink_node(tmp);
free_filestruct(tmp->file);
free(tmp->file_path);
delete_node(tmp);
shortcut_init(0);
display_main_list();
return 0;
}
/*
* When passed "[relative path][filename]" in origpath, return "[full
* path][filename]" on success, or NULL on error.
*/
char *get_full_path(const char *origpath)
{
char *newpath = NULL, *last_slash, *d_here, *d_there, *d_there_file;
int last_slash_index;
/* first, get the current directory */
#ifdef PATH_MAX
d_here = getcwd(NULL, PATH_MAX + 1);
#else
d_here = getcwd(NULL, 0);
#endif
if (d_here) {
align(&d_here);
/* get the filename (with path included) and save it in both
d_there and d_there_file */
d_there = charalloc(strlen(origpath) + 1);
d_there_file = charalloc(strlen(origpath) + 1);
strcpy(d_there, origpath);
strcpy(d_there_file, origpath);
/* 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) {
d_there = nrealloc(d_there, strlen(d_here) + 1);
strcpy(d_there, d_here);
}
else {
/* otherwise, remove all non-path elements from d_there */
last_slash_index = strlen(d_there) - strlen(last_slash);
null_at(d_there, last_slash_index);
/* and remove all non-file elements from d_there_file */
last_slash++;
d_there_file = nrealloc(d_there_file, strlen(last_slash) + 1);
strcpy(d_there_file, last_slash);
/* 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 */
free(d_there);
#ifdef PATH_MAX
d_there = getcwd(NULL, PATH_MAX + 1);
#else
d_there = getcwd(NULL, 0);
#endif
align(&d_there);
}
/* 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 */
/* newpath = d_there + "/" + d_there_file */
newpath = charalloc(strlen(d_there) + strlen(d_there_file) + 2);
strcpy(newpath, d_there);
strcat(newpath, "/");
strcat(newpath, d_there_file);
/* finally, clean up */
free(d_there_file);
free(d_there);
free(d_here);
}
return newpath;
}
#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 means, not surprisingly, whether we are appending instead
* of overwriting.
*
* nonamechange means don't change the current filename, it is ignored
* if tmp == 1.
*/
int write_file(char *name, int tmp, int append, int nonamechange)
{
long size, lineswritten = 0;
static char *buf = NULL;
filestruct *fileptr;
int fd, mask = 0, realexists, anyexists;
struct stat st, lst;
static char *realname = NULL;
if (!strcmp(name, "")) {
statusbar(_("Cancelled"));
return -1;
}
titlebar(NULL);
fileptr = fileage;
if (realname != NULL)
free(realname);
if (buf != NULL)
free(buf);
#ifndef DISABLE_TABCOMP
realname = real_dir_from_tilde(name);
#else
realname = mallocstrcpy(realname, name);
#endif
/* Save the state of file at the end of the symlink (if there is one) */
realexists = stat(realname, &st);
/* Stat the link itself for the check... */
anyexists = lstat(realname, &lst);
/* New case: if the file exists, just give up */
if (tmp && anyexists != -1)
return -1;
/* NOTE: If you change this statement, you MUST CHANGE the if
statement below (that says:
if (realexists == -1 || tmp || (!ISSET(FOLLOW_SYMLINKS) &&
S_ISLNK(lst.st_mode))) {
to reflect whether or not to link/unlink/rename the file */
else if (ISSET(FOLLOW_SYMLINKS) || !S_ISLNK(lst.st_mode) || tmp) {
/* Use O_EXCL if tmp == 1. This is now copied from joe, because
wiggy says so *shrug*. */
if (append)
fd = open(realname, O_WRONLY | 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);
return do_writeout(filename, 1, 0);
}
statusbar(_("Could not open file for writing: %s"),
strerror(errno));
return -1;
}
}
/* Don't follow symlink. Create new file. */
else {
buf = charalloc(strlen(realname) + 8);
strncpy(buf, realname, strlen(realname)+1);
strcat(buf, ".XXXXXX");
if ((fd = mkstemp(buf)) == -1) {
if (ISSET(TEMP_OPT)) {
UNSET(TEMP_OPT);
return do_writeout(filename, 1, 0);
}
statusbar(_("Could not open file for writing: %s"),
strerror(errno));
return -1;
}
}
dump_buffer(fileage);
while (fileptr != NULL && fileptr->next != NULL) {
/* Next line is so we discount the "magic line" */
if (filebot == fileptr && fileptr->data[0] == '\0')
break;
size = write(fd, fileptr->data, strlen(fileptr->data));
if (size == -1) {
statusbar(_("Could not open file for writing: %s"),
strerror(errno));
return -1;
} else {
#ifdef DEBUG
fprintf(stderr, _("Wrote >%s\n"), fileptr->data);
#endif
}
write(fd, "\n", 1);
fileptr = fileptr->next;
lineswritten++;
}
if (fileptr != NULL) {
size = write(fd, fileptr->data, strlen(fileptr->data));
if (size == -1) {
statusbar(_("Could not open file for writing: %s"),
strerror(errno));
return -1;
} else if (size > 0) {
size = write(fd, "\n", 1);
lineswritten++;
if (size == -1) {
statusbar(_("Could not open file for writing: %s"),
strerror(errno));
return -1;
}
}
}
if (close(fd) == -1) {
statusbar(_("Could not close %s: %s"), realname, strerror(errno));
unlink(buf);
return -1;
}
if (realexists == -1 || tmp ||
(!ISSET(FOLLOW_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 = 0600;
else
mask = 0666 & ~mask;
} else
/* Use permissions from file we are overwriting. */
mask = st.st_mode;
if (!tmp && (!ISSET(FOLLOW_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);
return -1;
}
}
if (link(buf, realname) != -1)
unlink(buf);
else if (errno != EPERM) {
statusbar(_("Could not open %s for writing: %s"),
name, strerror(errno));
unlink(buf);
return -1;
} else if (rename(buf, realname) == -1) { /* Try a rename?? */
statusbar(_("Could not open %s for writing: %s"),
realname, strerror(errno));
unlink(buf);
return -1;
}
}
if (chmod(realname, mask) == -1)
statusbar(_("Could not set permissions %o on %s: %s"),
mask, realname, strerror(errno));
if (!tmp) {
if (!nonamechange)
filename = mallocstrcpy(filename, realname);
statusbar(_("Wrote %d lines"), lineswritten);
UNSET(MODIFIED);
titlebar(NULL);
}
return 1;
}
int do_writeout(char *path, int exiting, int append)
{
int i = 0;
#ifdef NANO_EXTRA
static int did_cred = 0;
#endif
#ifndef DISABLE_MOUSE
currshortcut = writefile_list;
currslen = WRITEFILE_LIST_LEN;
#endif
answer = mallocstrcpy(answer, path);
if ((exiting) && (ISSET(TEMP_OPT))) {
if (filename[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
if (ISSET(MARK_ISSET) && !exiting)
i = statusq(1, writefile_list, WRITEFILE_LIST_LEN, "",
_("%s Selection to File"), append ? _("Append") : _("Write"));
else
#endif
i = statusq(1, writefile_list, WRITEFILE_LIST_LEN, answer,
_("File Name to %s"), append ? _("Append") : _("Write"));
if (i != -1) {
#ifndef DISABLE_BROWSER
if (i == NANO_TOFILES_KEY) {
char *tmp = do_browse_from(answer);
#ifndef DISABLE_MOUSE
currshortcut = writefile_list;
currslen = WRITEFILE_LIST_LEN;
#endif
if (tmp != NULL) {
answer = mallocstrcpy(answer, tmp);
} else
return do_writeout(answer, exiting, append);
} else
#endif
if (i == NANO_APPEND_KEY)
return(do_writeout(answer, exiting, 1 - append));
#ifdef DEBUG
fprintf(stderr, _("filename is %s"), 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 && strcmp(answer, filename)) {
struct stat st;
if (!stat(answer, &st)) {
i = do_yesno(0, 0, _("File exists, OVERWRITE ?"));
if (!i || (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 = 0;
cutbuffer = NULL;
/* Okay, since write_file changes the filename, back it up */
if (ISSET(MODIFIED))
oldmod = 1;
/* Now, non-destructively add the marked text to the
cutbuffer, and write the file out using the cutbuffer ;) */
if (current->lineno <= mark_beginbuf->lineno)
cut_marked_segment(current, current_x, mark_beginbuf,
mark_beginx, 0);
else
cut_marked_segment(mark_beginbuf, mark_beginx, current,
current_x, 0);
fileage = cutbuffer;
for (filebot = cutbuffer; filebot->next != NULL;
filebot = filebot->next)
;
i = write_file(answer, 0, append, 1);
/* Now restore everything */
fileage = fileagebak;
filebot = filebotbak;
cutbuffer = cutback;
if (oldmod)
set_modified();
} else
#endif
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) {
/* first, if the filename was changed during the save,
update the filename and full path stored in the
current entry, and then update the current entry,
checking for duplicate entries */
if (strcmp(open_files->data, filename)) {
open_file_change_name();
add_open_file(1, 1);
}
else {
/* otherwise, just update the current entry without
checking for duplicate entries */
add_open_file(1, 0);
}
}
#endif
display_main_list();
return i;
} else {
statusbar(_("Cancelled"));
display_main_list();
return 0;
}
}
}
int do_writeout_void(void)
{
return do_writeout(filename, 0, 0);
}
#ifndef DISABLE_TABCOMP
/* Return a malloc()ed string containing the actual directory, used
* to convert ~user and ~/ notation...
*/
char *real_dir_from_tilde(char *buf)
{
char *dirtmp = NULL, *find_user = NULL;
int i = 1;
struct passwd *userdata;
/* set a default value for dirtmp, in the case user home dir not found */
dirtmp = mallocstrcpy(dirtmp, buf);
if (buf[0] == '~') {
if (buf[1] == 0 || buf[1] == '/') {
if (getenv("HOME") != NULL) {
free(dirtmp);
dirtmp = charalloc(strlen(buf) + 2 + strlen(getenv("HOME")));
sprintf(dirtmp, "%s%s", getenv("HOME"), &buf[1]);
}
}
else {
/* Figure how how much of the str we need to compare */
for (i = 1; buf[i] != '/' && buf[i] != 0; i++)
;
find_user = mallocstrcpy(find_user, &buf[1]);
find_user[i - 1] = 0;
for (userdata = getpwent(); userdata != NULL &&
strcmp(userdata->pw_name, find_user);
userdata = getpwent());
free(find_user);
if (userdata != NULL) { /* User found */
free(dirtmp);
dirtmp = charalloc(strlen(buf) + 2 + strlen(userdata->pw_dir));
sprintf(dirtmp, "%s%s", userdata->pw_dir, &buf[i]);
}
endpwent();
}
}
return dirtmp;
}
/* Tack a slash onto the string we're completing if it's a directory */
int append_slash_if_dir(char *buf, int *lastWasTab, int *place)
{
char *dirptr;
struct stat fileinfo;
int ret = 0;
dirptr = real_dir_from_tilde(buf);
if (stat(dirptr, &fileinfo) == -1)
ret = 0;
else if (S_ISDIR(fileinfo.st_mode)) {
strncat(buf, "/", 1);
*place += 1;
/* now we start over again with # of tabs so far */
*lastWasTab = 0;
ret = 1;
}
if (dirptr != buf)
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...
*/
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 (strcmp(buf, "") && strstr(buf, "/")) {
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) {
/* 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...
*/
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)
{
/* 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;
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. */
/* FIXME -- this check is broken! */
if (*tmp == '~' && !strchr(tmp, '/'))
matches = username_tab_completion(tmp, &num_matches);
/* Try to match everything in the current working directory that
* matches. */
if (!matches)
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 (strcmp(buf, "") && strstr(buf, "/")) {
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)
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;
/* 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 (strcmp(buf, "") && strstr(buf, "/")) {
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 && num_matches > 0) {
/* 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);
} else
beep();
}
edit_refresh();
curs_set(1);
return buf;
}
#endif
#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 file1info, file2info;
char *a = *(char **)va, *b = *(char **)vb;
int aisdir, bisdir;
aisdir = (stat(a, &file1info) != -1) && S_ISDIR(file1info.st_mode);
bisdir = (stat(b, &file2info) != -1) && S_ISDIR(file2info.st_mode);
if (aisdir && !bisdir) return -1;
if (!aisdir && bisdir) return 1;
#ifdef HAVE_STRCASECMP
return(strcasecmp(a,b));
#else
return(strcmp(a,b));
#endif
}
/* Initialize the browser code, including the list of files in *path */
char **browser_init(char *path, int *longest, int *numents)
{
DIR *dir;
struct dirent *next;
char **filelist = (char **) NULL;
int i = 0;
dir = opendir(path);
if (!dir)
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 *));
while ((next = readdir(dir)) != NULL) {
if (!strcmp(next->d_name, "."))
continue;
filelist[i] = charalloc(strlen(next->d_name) + strlen(path) + 2);
if (!strcmp(path, "/"))
snprintf(filelist[i], strlen(next->d_name) + strlen(path) + 1,
"%s%s", path, next->d_name);
else
snprintf(filelist[i], strlen(next->d_name) + strlen(path) + 2,
"%s/%s", path, next->d_name);
i++;
}
if (*longest > COLS - 1)
*longest = COLS - 1;
return filelist;
}
/* Free our malloc()ed memory */
void free_charptrarray(char **array, int len)
{
int i;
for (i = 0; i < len - 1; i++)
free(array[i]);
free(array);
}
/* only print the last part of a path; isn't there a shell
command for this? */
char *tail(char *foo)
{
char *tmp = NULL;
tmp = foo + strlen(foo);
while (*tmp != '/' && tmp != foo)
tmp--;
tmp++;
return tmp;
}
/* Strip one dir from the end of a string */
void striponedir(char *foo)
{
char *tmp = NULL;
/* 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
*(tmp+1) = 0;
return;
}
/* Our browser function. inpath is the path to start browsing from */
char *do_browser(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;
#ifndef DISABLE_MOUSE
#ifdef NCURSES_MOUSE_VERSION
MEVENT mevent;
#endif
#endif
/* 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(path, 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, BROWSER_LIST_LEN);
curs_set(0);
wmove(edit, 0, 0);
i = 0;
width = 0;
filecols = 0;
/* Loop invariant: Microsoft sucks. */
do {
DIR *test_dir;
blank_statusbar_refresh();
#ifndef DISABLE_MOUSE
currshortcut = browser_list;
currslen = BROWSER_LIST_LEN;
#endif
editline = 0;
col = 0;
/* Compute line number we're on now, so we don't divide by zero later */
if (width == 0)
lineno = selected;
else
lineno = selected / width;
switch (kbinput) {
#ifndef DISABLE_MOUSE
#ifdef 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;
/* If we're on line 0, don't toy with finding out what
page we're on */
if (lineno / editwinrows == 0)
selected = mevent.y * width + mevent.x / longest;
else
selected = (lineno / editwinrows) * editwinrows * width
+ mevent.y * width + mevent.x / longest;
/* 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 */
break;
}
} else /* Must be clicking a shortcut */
do_mouse();
break;
#endif
#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 (lineno % editwinrows == 0) {
if (selected - (editwinrows * width) >= 0)
selected -= editwinrows * width;
else
selected = 0;
}
else if (selected - (editwinrows +
lineno % editwinrows) * width >= 0)
selected -= (editwinrows + lineno % editwinrows) * width;
else
selected = 0;
break;
case NANO_NEXTPAGE_KEY:
case NANO_NEXTPAGE_FKEY:
case KEY_NPAGE:
case ' ':
if (lineno % editwinrows == 0) {
if (selected + (editwinrows * width) <= numents - 1)
selected += editwinrows * width;
else
selected = numents - 1;
}
else if (selected + (editwinrows -
lineno % editwinrows) * width <= numents - 1)
selected += (editwinrows - lineno % editwinrows) * width;
else
selected = numents - 1;
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]);
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 */
return do_browser(path);
} else {
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, GOTODIR_LIST_LEN, "", _("Goto Directory"));
bottombars(browser_list, BROWSER_LIST_LEN);
curs_set(0);
if (j < 0) {
statusbar(_("Goto Cancelled"));
break;
}
if (answer[0] != '/') {
char *saveanswer = NULL;
saveanswer = mallocstrcpy(saveanswer, answer);
answer = realloc(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)
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 /* Its more than 1 k and less than a meg */
sprintf(foo + longest - 7, "%4d KB",
(int) st.st_size >> 10);
}
/* Hilight the currently selected file/dir */
if (j == selected) {
#ifdef ENABLE_COLOR
color_on(edit, COLOR_STATUSBAR);
#else
wattron(edit, A_REVERSE);
#endif
}
waddnstr(edit, foo, strlen(foo));
if (j == selected) {
#ifdef ENABLE_COLOR
color_off(edit, COLOR_STATUSBAR);
#else
wattroff(edit, A_REVERSE);
#endif
}
/* 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(char *inpath)
{
struct stat st;
char *tmp = NULL;
tmp = mallocstrcpy(tmp, inpath);
/* If there's no / in the string, we may as well start from . */
if (tmp == NULL || *tmp == '\0' || !strstr(tmp, "/")) {
#ifdef PATH_MAX
char *from = getcwd(NULL, PATH_MAX+1);
#else
char *from = getcwd(NULL, 0);
#endif /* PATH_MAX */
return do_browser(from ? from : "./");
}
/* If the string is a directory, pass do_browser that */
st = filestat(tmp);
if (S_ISDIR(st.st_mode))
return do_browser(tmp);
/* Okay, there's a dir in there, but not at the end of the string...
try stripping it off */
striponedir(tmp);
align(&tmp);
return do_browser(tmp);
}
#endif
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