| /* $Id$ */ |
| /************************************************************************** |
| * 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 <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 "config.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; |
| 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 = nmalloc(1); |
| strcpy(fileage->data, ""); |
| fileage->prev = NULL; |
| fileage->next = NULL; |
| fileage->lineno = 1; |
| filebot = fileage; |
| edittop = fileage; |
| editbot = fileage; |
| current = fileage; |
| totlines = 1; |
| 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 = nmalloc(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 = nmalloc(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(); |
| |
| /* 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); |
| return -1; |
| } else { /* File is A-OK */ |
| if (S_ISDIR(fileinfo.st_mode)) { |
| statusbar(_("File \"%s\" is a directory"), filename); |
| if (!insert) |
| new_file(); |
| return -1; |
| } |
| if (!quiet) |
| statusbar(_("Reading File")); |
| read_file(fd, filename); |
| } |
| |
| return 1; |
| } |
| |
| int do_insertfile(void) |
| { |
| int i; |
| char *realname = NULL; |
| |
| wrap_reset(); |
| i = statusq(1, writefile_list, WRITEFILE_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 |
| |
| i = open_file(realname, 1, 0); |
| free(realname); |
| |
| dump_buffer(fileage); |
| set_modified(); |
| |
| /* Here we want to rebuild the edit window */ |
| fix_editbot(); |
| |
| /* 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; |
| } |
| } |
| |
| /* |
| * Write a file out. If tmp is nonzero, we set the umask to 0600, |
| * we don't set the global variable filename to it's name, and don't |
| * print out how many lines we wrote on the statusbar. |
| * |
| * tmp means we are writing a tmp file in a secute fashion. We use |
| * it when spell checking or dumping the file on an error. |
| */ |
| int write_file(char *name, int tmp) |
| { |
| long size, lineswritten = 0; |
| char buf[PATH_MAX + 1]; |
| filestruct *fileptr; |
| int fd, mask = 0; |
| struct stat st; |
| static char *realname = NULL; |
| |
| if (!strcmp(name, "")) { |
| statusbar(_("Cancelled")); |
| return -1; |
| } |
| titlebar(); |
| fileptr = fileage; |
| |
| if (realname != NULL) |
| free(realname); |
| |
| #ifndef DISABLE_TABCOMP |
| realname = real_dir_from_tilde(name); |
| #else |
| realname = mallocstrcpy(realname, name); |
| #endif |
| |
| /* Check to see if the file is a regular file and FOLLOW_SYMLINKS is |
| set. If so then don't do the delete and recreate code which would |
| cause unexpected behavior */ |
| lstat(realname, &st); |
| |
| /* New case: if it's a symlink and tmp is set, abort. It could be |
| a symlink attack */ |
| if (tmp && S_ISLNK(st.st_mode)) |
| return -1; |
| else if (!tmp && (ISSET(FOLLOW_SYMLINKS) || !S_ISLNK(st.st_mode))) { |
| |
| /* Open the file and truncate it. Trust the symlink. */ |
| if ((fd = open(realname, O_WRONLY | O_CREAT | O_TRUNC, |
| S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | |
| S_IWOTH)) == -1) { |
| if (ISSET(TEMP_OPT)) { |
| UNSET(TEMP_OPT); |
| return do_writeout(1); |
| } |
| statusbar(_("Could not open file for writing: %s"), |
| strerror(errno)); |
| free(realname); |
| return -1; |
| } |
| } |
| /* Don't follow symlink. Create new file. */ |
| else { |
| if (strlen(realname) > (PATH_MAX - 7)) { |
| statusbar(_("Could not open file: Path length exceeded.")); |
| return -1; |
| } |
| |
| memset(buf, 0x00, PATH_MAX + 1); |
| strcat(buf, realname); |
| strcat(buf, ".XXXXXX"); |
| if ((fd = mkstemp(buf)) == -1) { |
| if (ISSET(TEMP_OPT)) { |
| UNSET(TEMP_OPT); |
| return do_writeout(1); |
| } |
| 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); |
| 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 (!ISSET(FOLLOW_SYMLINKS) || tmp) { |
| if (stat(realname, &st) == -1) { |
| /* Use default umask as file permisions 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 (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) { |
| strncpy(filename, realname, 132); |
| statusbar(_("Wrote %d lines"), lineswritten); |
| UNSET(MODIFIED); |
| titlebar(); |
| } |
| return 1; |
| } |
| |
| int do_writeout(int exiting) |
| { |
| int i = 0; |
| #ifdef NANO_EXTRA |
| static int did_cred = 0; |
| #endif |
| |
| answer = mallocstrcpy(answer, filename); |
| |
| if ((exiting) && (ISSET(TEMP_OPT))) { |
| if (filename[0]) { |
| i = write_file(answer, 0); |
| display_main_list(); |
| return i; |
| } else { |
| UNSET(TEMP_OPT); |
| do_exit(); |
| |
| /* They cancelled, abort quit */ |
| return -1; |
| } |
| } |
| |
| while (1) { |
| i = statusq(1, writefile_list, WRITEFILE_LIST_LEN, answer, |
| _("File Name to write")); |
| |
| if (i != -1) { |
| |
| #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 (strcmp(answer, filename)) { |
| struct stat st; |
| if (!stat(answer, &st)) { |
| i = do_yesno(0, 0, _("File exists, OVERWRITE ?")); |
| |
| if (!i || (i == -1)) |
| continue; |
| } |
| } |
| i = write_file(answer, 0); |
| |
| display_main_list(); |
| return i; |
| } else { |
| statusbar(_("Cancelled")); |
| display_main_list(); |
| return 0; |
| } |
| } |
| } |
| |
| int do_writeout_void(void) |
| { |
| return do_writeout(0); |
| } |
| |
| #ifndef DISABLE_TABCOMP |
| static char **homedirs; |
| |
| /* 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, *line = NULL, byte[1], *lineptr; |
| int fd, i, status, searchctr = 1; |
| |
| if (buf[0] == '~') { |
| if (buf[1] == '~') |
| goto abort; /* Handle ~~ without segfaulting =) */ |
| else if (buf[1] == '/') { |
| if (getenv("HOME") != NULL) { |
| dirtmp = nmalloc(strlen(buf) + 2 + strlen(getenv("HOME"))); |
| |
| sprintf(dirtmp, "%s/%s", getenv("HOME"), &buf[2]); |
| } |
| } |
| else if (buf[1] != 0) { |
| |
| if((fd = open("/etc/passwd", O_RDONLY)) == -1) |
| goto abort; |
| |
| /* Figure how how much of of the str we need to compare */ |
| for (searchctr = 1; buf[searchctr] != '/' && |
| buf[searchctr] != 0; searchctr++) |
| ; |
| |
| do { |
| i = 0; |
| line = nmalloc(1); |
| while ((status = read(fd, byte, 1)) != 0 && byte[0] != '\n') { |
| |
| line[i] = byte[0]; |
| i++; |
| line = nrealloc(line, i+1); |
| } |
| line[i] = 0; |
| |
| if (i == 0) |
| goto abort; |
| |
| line[i] = 0; |
| lineptr = strtok(line, ":"); |
| |
| if (!strncmp(lineptr, &buf[1], searchctr - 1)) { |
| |
| /* Okay, skip to the password portion now */ |
| for (i = 0; i <= 4 && lineptr != NULL; i++) |
| lineptr = strtok(NULL, ":"); |
| |
| if (lineptr == NULL) |
| goto abort; |
| |
| /* Else copy the new string into the new buf */ |
| dirtmp = nmalloc(strlen(buf) + 2 + strlen(lineptr)); |
| |
| sprintf(dirtmp, "%s%s", lineptr, &buf[searchctr]); |
| free(line); |
| break; |
| } |
| |
| free(line); |
| |
| } while (status != 0); |
| } |
| } |
| else |
| dirtmp = mallocstrcpy(dirtmp, buf); |
| |
| return dirtmp; |
| |
| abort: |
| dirtmp = mallocstrcpy(dirtmp, buf); |
| 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, *line = NULL, *lineptr; |
| char *matchline = NULL, *matchdir = NULL; |
| |
| int fd, i = 0, status = 1; |
| char byte[1]; |
| |
| if((fd = open("/etc/passwd", O_RDONLY)) == -1) { |
| return NULL; |
| } |
| |
| if (homedirs != NULL) { |
| for (i = 0; i < *num_matches; i++) |
| free(homedirs[i]); |
| free(homedirs); |
| homedirs = (char **) NULL; |
| *num_matches = 0; |
| } |
| matches = nmalloc(BUFSIZ); |
| homedirs = nmalloc(BUFSIZ); |
| strcat(buf, "*"); |
| do { |
| i = 0; |
| line = nmalloc(1); |
| while ((status = read(fd, byte, 1)) != 0 && byte[0] != '\n') { |
| |
| line[i] = byte[0]; |
| i++; |
| line = nrealloc(line, i+1); |
| } |
| |
| if (i == 0) |
| break; |
| |
| line[i] = 0; |
| lineptr = strtok(line, ":"); |
| |
| if (check_wildcard_match(line, &buf[1]) == TRUE) { |
| |
| if (*num_matches == BUFSIZ) |
| break; |
| |
| /* Cool, found a match. Add it to the list |
| * This makes a lot more sense to me (Chris) this way... |
| */ |
| matchline = nmalloc(strlen(line) + 2); |
| sprintf(matchline, "~%s", line); |
| |
| for (i = 0; i <= 4 && lineptr != NULL; i++) |
| lineptr = strtok(NULL, ":"); |
| |
| if (lineptr == NULL) |
| break; |
| |
| matchdir = mallocstrcpy(matchdir, lineptr); |
| homedirs[*num_matches] = matchdir; |
| matches[*num_matches] = matchline; |
| |
| ++*num_matches; |
| |
| /* If there's no more room, bail out */ |
| if (*num_matches == BUFSIZ) |
| break; |
| } |
| |
| free(line); |
| |
| } while (status != 0); |
| |
| close(fd); |
| return matches; |
| #ifdef DEBUG |
| fprintf(stderr, "\nin username_tab_completion\n"); |
| #endif |
| 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); |
| |
| /* 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 = malloc(strlen(buf) + 1); |
| tmp = buf + strlen(buf); |
| while (*tmp != '/' && tmp != buf) |
| tmp--; |
| |
| tmp++; |
| |
| strncpy(dirName, buf, tmp - buf + 1); |
| dirName[tmp - buf] = 0; |
| |
| } else { |
| if ((dirName = getcwd(NULL, 0)) == NULL) |
| 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) { |
| |
| /* Some quick sanity checks */ |
| if ((strcmp(next->d_name, "..") == 0) |
| || (strcmp(next->d_name, ".") == 0)) { |
| continue; |
| } |
| #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 = nmalloc(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 *) calloc(strlen(buf) + 2, sizeof(char)); |
| |
| 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 = nmalloc(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 |