101 lines
2.3 KiB
C
101 lines
2.3 KiB
C
/*
|
|
* Mini ln implementation for busybox
|
|
*
|
|
*
|
|
* Copyright (C) 1999 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 "internal.h"
|
|
#include <stdio.h>
|
|
#include <dirent.h>
|
|
#include <errno.h>
|
|
|
|
|
|
static const char ln_usage[] = "ln [-s] [-f] original-name additional-name\n"
|
|
"\n"
|
|
"\tAdd a new name that refers to the same file as \"original-name\"\n"
|
|
"\n"
|
|
"\t-s:\tUse a \"symbolic\" link, instead of a \"hard\" link.\n"
|
|
"\t-f:\tRemove existing destination files.\n";
|
|
|
|
|
|
static int symlinkFlag = FALSE;
|
|
static int removeoldFlag = FALSE;
|
|
static const char *destName;
|
|
|
|
|
|
extern int ln_main(int argc, char **argv)
|
|
{
|
|
int status;
|
|
char newdestName[NAME_MAX];
|
|
|
|
if (argc < 3) {
|
|
usage (ln_usage);
|
|
}
|
|
argc--;
|
|
argv++;
|
|
|
|
/* Parse any options */
|
|
while (**argv == '-') {
|
|
while (*++(*argv))
|
|
switch (**argv) {
|
|
case 's':
|
|
symlinkFlag = TRUE;
|
|
break;
|
|
case 'f':
|
|
removeoldFlag = TRUE;
|
|
break;
|
|
default:
|
|
usage (ln_usage);
|
|
}
|
|
argc--;
|
|
argv++;
|
|
}
|
|
|
|
|
|
destName = argv[argc - 1];
|
|
|
|
if ((argc > 3) && !(isDirectory(destName))) {
|
|
fprintf(stderr, "%s: not a directory\n", destName);
|
|
exit (FALSE);
|
|
}
|
|
|
|
while (argc-- >= 2) {
|
|
strcpy(newdestName, destName);
|
|
strcat(newdestName, (*argv)+(strlen(*(++argv))));
|
|
|
|
if (removeoldFlag==TRUE ) {
|
|
status = ( unlink(newdestName) && errno != ENOENT );
|
|
if ( status != 0 ) {
|
|
perror(newdestName);
|
|
exit( FALSE);
|
|
}
|
|
}
|
|
if ( symlinkFlag==TRUE)
|
|
status = symlink(*argv, newdestName);
|
|
else
|
|
status = link(*argv, newdestName);
|
|
if ( status != 0 ) {
|
|
perror(newdestName);
|
|
exit( FALSE);
|
|
}
|
|
}
|
|
exit( TRUE);
|
|
}
|