| /* |
| * 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( TRUE); |
| } |
| return( FALSE); |
| } |
| |
| 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); |
| } |