mirror of
https://github.com/topjohnwu/ndk-busybox.git
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96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
/*
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* Mini ln implementation for busybox
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*
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*
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* Copyright (C) 1999 by Lineo, inc.
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* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "internal.h"
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#include <stdio.h>
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#include <dirent.h>
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#include <errno.h>
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static const char ln_usage[] = "ln [OPTION] TARGET... LINK_NAME|DIRECTORY\n\n"
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"Create a link named LINK_NAME or DIRECTORY to the specified TARGET\n\n"
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"Options:\n"
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"\t-s\tmake symbolic links instead of hard links\n"
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"\t-f\tremove existing destination files\n";
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static int symlinkFlag = FALSE;
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static int removeoldFlag = FALSE;
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extern int ln_main(int argc, char **argv)
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{
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int status;
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static char* linkName;
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if (argc < 3) {
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usage (ln_usage);
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}
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argc--;
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argv++;
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/* Parse any options */
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while (**argv == '-') {
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while (*++(*argv))
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switch (**argv) {
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case 's':
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symlinkFlag = TRUE;
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break;
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case 'f':
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removeoldFlag = TRUE;
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break;
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default:
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usage (ln_usage);
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}
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argc--;
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argv++;
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}
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linkName = argv[argc - 1];
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if ((argc > 3) && !(isDirectory(linkName))) {
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fprintf(stderr, "%s: not a directory\n", linkName);
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exit (FALSE);
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}
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while (argc-- >= 2) {
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if (removeoldFlag==TRUE ) {
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status = ( unlink(linkName) && errno != ENOENT );
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if ( status != 0 ) {
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perror(linkName);
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exit( FALSE);
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}
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}
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if ( symlinkFlag==TRUE)
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status = symlink(*argv, linkName);
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else
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status = link(*argv, linkName);
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if ( status != 0 ) {
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perror(linkName);
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exit( FALSE);
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}
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}
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exit( TRUE);
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}
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