Eric Andersen | 2b69c40 | 1999-10-05 22:58:32 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Mini chown/chgrp implementation for busybox |
| 3 | * |
| 4 | * Copyright (C) 1998 by Erik Andersen <andersee@debian.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | * |
| 20 | */ |
| 21 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 22 | #include <stdio.h> |
Eric Andersen | 2b69c40 | 1999-10-05 22:58:32 +0000 | [diff] [blame^] | 23 | #include <grp.h> |
| 24 | #include <pwd.h> |
| 25 | #include "internal.h" |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 26 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 27 | |
Eric Andersen | 2b69c40 | 1999-10-05 22:58:32 +0000 | [diff] [blame^] | 28 | static int uid=-1; |
| 29 | static int gid=0; |
| 30 | static int chownApp; |
| 31 | static char* invocationName=NULL; |
| 32 | |
| 33 | |
| 34 | const char chgrp_usage[] = "[OPTION]... GROUP FILE...\n" |
| 35 | "Change the group membership of each FILE to GROUP.\n" |
| 36 | "\n\tOptions:\n" "\t-R\tchange files and directories recursively\n"; |
| 37 | const char chown_usage[] = "[OPTION]... OWNER[.[GROUP] FILE...\n" |
| 38 | "Change the owner and/or group of each FILE to OWNER and/or GROUP.\n" |
| 39 | "\n\tOptions:\n" "\t-R\tchange files and directories recursively\n"; |
| 40 | |
| 41 | |
| 42 | |
| 43 | static int fileAction(const char *fileName) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 44 | { |
Eric Andersen | 2b69c40 | 1999-10-05 22:58:32 +0000 | [diff] [blame^] | 45 | struct stat statBuf; |
| 46 | if ((stat(fileName, &statBuf) < 0) || |
| 47 | (chown(fileName, |
| 48 | ((chownApp==TRUE)? uid: statBuf.st_uid), |
| 49 | gid) < 0)) { |
| 50 | perror(fileName); |
| 51 | return( TRUE); |
| 52 | } |
| 53 | return( FALSE); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 54 | } |
| 55 | |
Eric Andersen | 2b69c40 | 1999-10-05 22:58:32 +0000 | [diff] [blame^] | 56 | int chown_main(int argc, char **argv) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 57 | { |
Eric Andersen | 2b69c40 | 1999-10-05 22:58:32 +0000 | [diff] [blame^] | 58 | struct group *grp; |
| 59 | struct passwd *pwd; |
| 60 | int recursiveFlag=FALSE; |
| 61 | char *groupName; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 62 | |
Eric Andersen | 2b69c40 | 1999-10-05 22:58:32 +0000 | [diff] [blame^] | 63 | |
| 64 | chownApp = (strcmp(*argv, "chown")==0)? TRUE : FALSE; |
| 65 | |
| 66 | if (argc < 2) { |
| 67 | fprintf(stderr, "Usage: %s %s", *argv, |
| 68 | (chownApp==TRUE)? chown_usage : chgrp_usage); |
| 69 | return( FALSE); |
| 70 | } |
| 71 | invocationName=*argv; |
| 72 | argc--; |
| 73 | argv++; |
| 74 | |
| 75 | /* Parse options */ |
| 76 | while (**argv == '-') { |
| 77 | while (*++(*argv)) switch (**argv) { |
| 78 | case 'R': |
| 79 | recursiveFlag = TRUE; |
| 80 | break; |
| 81 | default: |
| 82 | fprintf(stderr, "Unknown option: %c\n", **argv); |
| 83 | return( FALSE); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 84 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 85 | argc--; |
Eric Andersen | 2b69c40 | 1999-10-05 22:58:32 +0000 | [diff] [blame^] | 86 | argv++; |
| 87 | } |
| 88 | |
| 89 | /* Find the selected group */ |
| 90 | groupName = strchr(*argv, '.'); |
| 91 | if ( chownApp==TRUE && groupName ) |
| 92 | *groupName++ = '\0'; |
| 93 | else |
| 94 | groupName = *argv; |
| 95 | grp = getgrnam(groupName); |
| 96 | if (grp == NULL) { |
| 97 | fprintf(stderr, "%s: Unknown group name: %s\n", invocationName, groupName); |
| 98 | return( FALSE); |
| 99 | } |
| 100 | gid = grp->gr_gid; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 101 | |
Eric Andersen | 2b69c40 | 1999-10-05 22:58:32 +0000 | [diff] [blame^] | 102 | /* Find the selected user (if appropriate) */ |
| 103 | if (chownApp==TRUE) { |
| 104 | pwd = getpwnam(*argv); |
| 105 | if (pwd == NULL) { |
| 106 | fprintf(stderr, "%s: Unknown user name: %s\n", invocationName, *argv); |
| 107 | return( FALSE); |
| 108 | } |
| 109 | uid = pwd->pw_uid; |
| 110 | } |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 111 | |
Eric Andersen | 2b69c40 | 1999-10-05 22:58:32 +0000 | [diff] [blame^] | 112 | /* Ok, ready to do the deed now */ |
| 113 | if (argc <= 1) { |
| 114 | fprintf(stderr, "%s: too few arguments", invocationName); |
| 115 | return( FALSE); |
| 116 | } |
| 117 | while (argc-- > 1) { |
| 118 | argv++; |
| 119 | if (recursiveFlag==TRUE) |
| 120 | recursiveAction( *argv, TRUE, fileAction, fileAction); |
| 121 | else |
| 122 | fileAction( *argv); |
| 123 | } |
| 124 | return(TRUE); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 125 | } |