mirror of
https://github.com/sheumann/hush.git
synced 2024-11-05 06:07:00 +00:00
119 lines
2.6 KiB
C
119 lines
2.6 KiB
C
/* 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 = is_directory(srcName, TRUE, NULL);
|
|
else
|
|
srcIsDir = is_directory(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:
|
|
*/
|