/*
* Mini chown/chmod/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 whichApp;
static char* invocationName=NULL;
static mode_t mode=0644;
#define CHGRP_APP 1
#define CHOWN_APP 2
#define CHMOD_APP 3
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 const char chmod_usage[] = "[-R] MODE[,MODE]... FILE...\n"
"Each MODE is one or more of the letters ugoa, one of the symbols +-= and\n"
"one or more of the letters rwxst.\n\n"
"\t-R\tchange files and directories recursively.\n";
static int fileAction(const char *fileName, struct stat* statbuf)
{
switch (whichApp) {
case CHGRP_APP:
case CHOWN_APP:
if (chown(fileName, ((whichApp==CHOWN_APP)? uid: statbuf->st_uid), gid) < 0)
return( TRUE);
case CHMOD_APP:
fprintf(stderr, "%s, %d\n", fileName, mode);
if (chmod(fileName, mode))
return( TRUE);
}
perror(fileName);
return( FALSE);
}
int chmod_chown_chgrp_main(int argc, char **argv)
{
struct group *grp;
struct passwd *pwd;
int recursiveFlag=FALSE;
char *groupName;
whichApp = (strcmp(*argv, "chown")==0)? CHOWN_APP : (strcmp(*argv, "chmod")==0)? CHMOD_APP : CHGRP_APP;
if (argc < 2) {
fprintf(stderr, "Usage: %s %s", *argv,
(whichApp==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++;
}
if ( whichApp == CHMOD_APP ) {
/* Find the specified modes */
mode &= S_ISVTX|S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
if ( parse_mode(*argv, &mode) == FALSE ) {
fprintf(stderr, "%s: Unknown mode: %s\n", invocationName, *argv);
exit( FALSE);
}
//mode &= andWithMode;
fprintf(stderr, "mode %d\n", mode);
} else {
/* Find the selected group */
groupName = strchr(*argv, '.');
if ( whichApp==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 (whichApp==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) {
if (recursiveAction( *(++argv), recursiveFlag, TRUE, FALSE, fileAction, fileAction)==FALSE)
exit( FALSE);
}
exit(TRUE);
}
#ifdef fooo
#include "internal.h"
#include <pwd.h>
#include <grp.h>
#include <string.h>
#include <stdio.h>
int my_getid(const char *filename, const char *name, uid_t *id)
{
FILE *stream;
uid_t rid;
char *rname, *start, *end, buf[128];
stream=fopen(filename,"r");
while (fgets (buf, 128, stream) != NULL) {
if (buf[0] == '#')
continue;
start = buf;
end = strchr (start, ':');
if (end == NULL)
continue;
*end = '\0';
rname = start;
start = end + 1;
end = strchr (start, ':');
if (end == NULL)
continue;
start = end + 1;
rid = (uid_t) strtol (start, &end, 10);
if (end == start)
continue;
if (name) {
if (0 == strcmp(rname, name)) {
*id=rid;
return 0;
}
} else {
if ( *id == rid )
return 0;
}
}
fclose(stream);
return -1;
}
int
my_getpwuid(uid_t *uid)
{
return my_getid("/etc/passwd", NULL, uid);
}
int
my_getpwnam(char *name, uid_t *uid)
{
return my_getid("/etc/passwd", name, uid);
}
int
my_getgrgid(gid_t *gid)
{
return my_getid("/etc/group", NULL, gid);
}
int
my_getgrnam(char *name, gid_t *gid)
{
return my_getid("/etc/group", name, gid);
}
const char chown_usage[] = "chown [-R] user-name file [file ...]\n"
"\n\tThe group list is kept in the file /etc/groups.\n\n"
"\t-R:\tRecursively change the mode of all files and directories\n"
"\t\tunder the argument directory.";
int
parse_user_name(const char * s, struct FileInfo * i)
{
char * dot = strchr(s, '.');
char * end = NULL;
uid_t id = 0;
if (! dot )
dot = strchr(s, ':');
if ( dot )
*dot = '\0';
if ( my_getpwnam(s,&id) == -1 ) {
id = strtol(s,&end,10);
if ((*end != '\0') || ( my_getpwuid(&id) == -1 )) {
fprintf(stderr, "%s: no such user.\n", s);
return 1;
}
}
i->userID = id;
if ( dot ) {
if ( my_getgrnam(++dot,&id) == -1 ) {
id = strtol(dot,&end,10);
if ((*end != '\0') || ( my_getgrgid(&id) == -1 )) {
fprintf(stderr, "%s: no such group.\n", dot);
return 1;
}
}
i->groupID = id;
i->changeGroupID = 1;
}
return 0;
}
extern int
chown_main(struct FileInfo * i, int argc, char * * argv)
{
int status;
while ( argc >= 3 && strcmp("-R", argv[1]) == 0 ) {
i->recursive = 1;
argc--;
argv++;
}
if ( (status = parse_user_name(argv[1], i)) != 0 )
return status;
argv++;
argc--;
i->changeUserID = 1;
i->complainInPostProcess = 1;
return monadic_main(i, argc, argv);
}
#endif