| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini ln implementation for busybox |
| * |
| * Copyright (C) 1999,2000 by Lineo, inc. |
| * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> |
| * |
| * 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #include "busybox.h" |
| #define BB_DECLARE_EXTERN |
| #define bb_need_not_a_directory |
| #include "messages.c" |
| |
| #include <stdio.h> |
| #include <dirent.h> |
| #include <errno.h> |
| |
| #define LN_SYMLINK 1 |
| #define LN_FORCE 2 |
| #define LN_NODEREFERENCE 4 |
| |
| /* |
| * linkDestName is where the link points to, |
| * linkSrcName is the name of the link to be created. |
| */ |
| static int fs_link(const char *link_DestName, const char *link_SrcName, const int flag) |
| { |
| int status; |
| int srcIsDir; |
| char *srcName; |
| |
| if (link_DestName==NULL) |
| return(FALSE); |
| |
| srcName = (char *) malloc(strlen(link_SrcName)+strlen(link_DestName)+1); |
| |
| if (link_SrcName==NULL) |
| strcpy(srcName, link_DestName); |
| else |
| strcpy(srcName, link_SrcName); |
| |
| if (flag&LN_NODEREFERENCE) |
| srcIsDir = isDirectory(srcName, TRUE, NULL); |
| else |
| srcIsDir = isDirectory(srcName, FALSE, NULL); |
| |
| if ((srcIsDir==TRUE)&&((flag&LN_NODEREFERENCE)==0)) { |
| strcat(srcName, "/"); |
| strcat(srcName, link_DestName); |
| } |
| |
| if (flag&LN_FORCE) |
| unlink(srcName); |
| |
| if (flag&LN_SYMLINK) |
| status = symlink(link_DestName, srcName); |
| else |
| status = link(link_DestName, srcName); |
| |
| if (status != 0) { |
| perror(srcName); |
| return(FALSE); |
| } |
| return(TRUE); |
| } |
| |
| extern int ln_main(int argc, char **argv) |
| { |
| int status = EXIT_SUCCESS; |
| int flag = 0; |
| int opt; |
| |
| /* Parse any options */ |
| while ((opt=getopt(argc, argv, "sfn")) != -1) { |
| switch(opt) { |
| case 's': |
| flag |= LN_SYMLINK; |
| break; |
| case 'f': |
| flag |= LN_FORCE; |
| break; |
| case 'n': |
| flag |= LN_NODEREFERENCE; |
| break; |
| default: |
| usage(ln_usage); |
| } |
| } |
| while(optind<(argc-1)) { |
| if (fs_link(argv[optind], argv[argc-1], flag)==FALSE) |
| status = EXIT_FAILURE; |
| optind++; |
| } |
| return(status); |
| } |
| |
| /* |
| Local Variables: |
| c-file-style: "linux" |
| c-basic-offset: 4 |
| tab-width: 4 |
| End: |
| */ |