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/*
* Mini chown/chgrp 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 <stdio.h>
#include <grp.h>
#include <pwd.h>
#include "internal.h"
static int uid=-1;
static int gid=0;
static int chownApp;
static char* invocationName=NULL;
static const char chgrp_usage[] = "[OPTION]... GROUP FILE...\n"
"Change the group membership of each FILE to GROUP.\n"
"\n\tOptions:\n" "\t-R\tchange files and directories recursively\n";
static const char chown_usage[] = "[OPTION]... OWNER[.[GROUP] FILE...\n"
"Change the owner and/or group of each FILE to OWNER and/or GROUP.\n"
"\n\tOptions:\n" "\t-R\tchange files and directories recursively\n";
static int fileAction(const char *fileName)
{
struct stat statBuf;
if ((stat(fileName, &statBuf) < 0) ||
(chown(fileName,
((chownApp==TRUE)? uid: statBuf.st_uid),
gid) < 0)) {
perror(fileName);
return( FALSE);
}
return( TRUE);
}
int chown_main(int argc, char **argv)
{
struct group *grp;
struct passwd *pwd;
int recursiveFlag=FALSE;
char *groupName;
chownApp = (strcmp(*argv, "chown")==0)? TRUE : FALSE;
if (argc < 2) {
fprintf(stderr, "Usage: %s %s", *argv,
(chownApp==TRUE)? chown_usage : chgrp_usage);
exit( FALSE);
}
invocationName=*argv;
argc--;
argv++;
/* Parse options */
while (**argv == '-') {
while (*++(*argv)) switch (**argv) {
case 'R':
recursiveFlag = TRUE;
break;
default:
fprintf(stderr, "Unknown option: %c\n", **argv);
exit( FALSE);
}
argc--;
argv++;
}
/* Find the selected group */
groupName = strchr(*argv, '.');
if ( chownApp==TRUE && groupName )
*groupName++ = '\0';
else
groupName = *argv;
grp = getgrnam(groupName);
if (grp == NULL) {
fprintf(stderr, "%s: Unknown group name: %s\n", invocationName, groupName);
exit( FALSE);
}
gid = grp->gr_gid;
/* Find the selected user (if appropriate) */
if (chownApp==TRUE) {
pwd = getpwnam(*argv);
if (pwd == NULL) {
fprintf(stderr, "%s: Unknown user name: %s\n", invocationName, *argv);
exit( FALSE);
}
uid = pwd->pw_uid;
}
/* Ok, ready to do the deed now */
if (argc <= 1) {
fprintf(stderr, "%s: too few arguments", invocationName);
exit( FALSE);
}
while (argc-- > 1) {
argv++;
recursiveAction( *argv, recursiveFlag, TRUE, fileAction, fileAction);
}
exit(TRUE);
}
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