busybox/coreutils/ln.c

132 lines
2.8 KiB
C
Raw Normal View History

/* vi: set sw=4 ts=4: */
1999-10-14 02:42:06 +05:30
/*
* Mini ln implementation for busybox
*
* Copyright (C) 1999,2000 by Lineo, inc.
1999-10-21 03:38:37 +05:30
* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
1999-10-14 02:42:06 +05:30
*
* 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
*
*/
1999-10-05 21:54:54 +05:30
#include "internal.h"
#define BB_DECLARE_EXTERN
#define bb_need_not_a_directory
#include "messages.c"
1999-10-05 21:54:54 +05:30
#include <stdio.h>
1999-10-14 02:42:06 +05:30
#include <dirent.h>
1999-10-05 21:54:54 +05:30
#include <errno.h>
1999-10-14 02:42:06 +05:30
static int symlinkFlag = FALSE;
static int removeoldFlag = FALSE;
static int followLinks = TRUE;
1999-10-14 02:42:06 +05:30
extern int ln_main(int argc, char **argv)
1999-10-05 21:54:54 +05:30
{
char *linkName, *dirName=NULL;
int linkIntoDirFlag;
int stopIt = FALSE;
1999-10-14 02:42:06 +05:30
argc--;
argv++;
/* Parse any options */
while (argc > 0 && stopIt == FALSE) {
if (**argv == '-') {
while (*++(*argv))
switch (**argv) {
case 's':
symlinkFlag = TRUE;
break;
case 'f':
removeoldFlag = TRUE;
break;
case 'n':
followLinks = FALSE;
break;
case '-':
stopIt = TRUE;
break;
default:
usage(ln_usage);
}
argc--;
argv++;
}
else
break;
}
1999-10-14 02:42:06 +05:30
if (argc < 2) {
usage(ln_usage);
}
linkName = argv[argc - 1];
linkIntoDirFlag = isDirectory(linkName, followLinks, NULL);
if ((argc >= 3) && linkIntoDirFlag == FALSE) {
2000-07-14 07:21:25 +05:30
errorMsg(not_a_directory, linkName);
exit FALSE;
1999-10-05 21:54:54 +05:30
}
if (linkIntoDirFlag == TRUE)
dirName = linkName;
while (argc-- >= 2) {
int status;
if (linkIntoDirFlag == TRUE) {
char *baseName = get_last_path_component(*argv);
linkName = (char *)malloc(strlen(dirName)+strlen(baseName)+2);
strcpy(linkName, dirName);
if(dirName[strlen(dirName)-1] != '/')
strcat(linkName, "/");
strcat(linkName,baseName);
}
if (removeoldFlag == TRUE) {
status = (unlink(linkName) && errno != ENOENT);
if (status != 0) {
perror(linkName);
exit FALSE;
}
}
if (symlinkFlag == TRUE)
status = symlink(*argv, linkName);
else
status = link(*argv, linkName);
if (status != 0) {
perror(linkName);
exit FALSE;
}
if (linkIntoDirFlag == TRUE)
free(linkName);
argv++;
1999-10-14 02:42:06 +05:30
}
return( TRUE);
1999-10-05 21:54:54 +05:30
}
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/