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/*
* Mini ln implementation for busybox
*
* Copyright (C) 1998 by Erik Andersen <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) {
fprintf(stderr, "Usage: %s", ln_usage);
exit (FALSE);
}
argc--;
argv++;
/* Parse any options */
while (**argv == '-') {
while (*++(*argv))
switch (**argv) {
case 's':
symlinkFlag = TRUE;
break;
case 'f':
removeoldFlag = TRUE;
break;
default:
fprintf(stderr, "Usage: %s\n", ln_usage);
exit(FALSE);
}
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);
}
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