coreutils/rm.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * Mini rm implementation for busybox
   4  *
   5  *
   6  * Copyright (C) 1999,2000,2001 by Lineo, inc.
   7  * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
   8  *
   9  * INTERACTIVE feature Copyright (C) 2001 by Alcove
  10  *   written by Christophe Boyanique <Christophe.Boyanique@fr.alcove.com>
  11  *   for Ipanema Technologies
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  21  * General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  26  *
  27  */
  28
  29 #include <stdio.h>
  30 #include <time.h>
  31 #include <utime.h>
  32 #include <dirent.h>
  33 #include <errno.h>
  34 #include <unistd.h>
  35 #include <stdlib.h>
  36 #include "busybox.h"
  37
  38 static int recursiveFlag = FALSE;
  39 static int forceFlag = FALSE;
  40 #ifdef BB_FEATURE_RM_INTERACTIVE
  41         static int interactiveFlag = FALSE;
  42 #endif
  43 static const char *srcName;
  44
  45
  46 static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
  47 {
  48 #ifdef BB_FEATURE_RM_INTERACTIVE
  49         if (interactiveFlag == TRUE) {
  50                 printf("rm: remove `%s'? ", fileName);
  51                 if (ask_confirmation() == 0)
  52                         return (TRUE);
  53         }
  54 #endif
  55         if (unlink(fileName) < 0) {
  56                 perror_msg("%s", fileName);
  57                 return (FALSE);
  58         }
  59         return (TRUE);
  60 }
  61
  62 static int dirAction(const char *fileName, struct stat *statbuf, void* junk)
  63 {
  64         if (recursiveFlag == FALSE) {
  65                 errno = EISDIR;
  66                 perror_msg("%s", fileName);
  67                 return (FALSE);
  68         }
  69 #ifdef BB_FEATURE_RM_INTERACTIVE
  70         if (interactiveFlag == TRUE) {
  71                 printf("rm: remove directory `%s'? ", fileName);
  72                 if (ask_confirmation() == 0)
  73                         return (TRUE);
  74         }
  75 #endif
  76         if (rmdir(fileName) < 0) {
  77                 perror_msg("%s", fileName);
  78                 return (FALSE);
  79         }
  80         return (TRUE);
  81 }
  82
  83 extern int rm_main(int argc, char **argv)
  84 {
  85         int status = EXIT_SUCCESS;
  86         int stopIt=FALSE;
  87         struct stat statbuf;
  88
  89         argc--;
  90         argv++;
  91
  92         /* Parse any options */
  93         while (argc > 0 && stopIt == FALSE) {
  94                 if (**argv == '-') {
  95                         while (*++(*argv))
  96                                 switch (**argv) {
  97                                         case 'R':
  98                                         case 'r':
  99                                                 recursiveFlag = TRUE;
 100                                                 break;
 101                                         case 'f':
 102                                                 forceFlag = TRUE;
 103 #ifdef BB_FEATURE_RM_INTERACTIVE
 104                                                 interactiveFlag = FALSE;
 105 #endif
 106                                                 break;
 107                                         case 'i':
 108 #ifdef BB_FEATURE_RM_INTERACTIVE
 109                                                 interactiveFlag = TRUE;
 110 #endif
 111                                                 break;
 112                                         case '-':
 113                                                 stopIt = TRUE;
 114                                                 break;
 115                                         default:
 116                                                 show_usage();
 117                                 }
 118                         argc--;
 119                         argv++;
 120                 }
 121                 else
 122                         break;
 123         }
 124
 125         if (argc < 1 && forceFlag == FALSE) {
 126                 show_usage();
 127         }
 128
 129         while (argc-- > 0) {
 130                 srcName = *(argv++);
 131                 if (forceFlag == TRUE && lstat(srcName, &statbuf) != 0
 132                         && errno == ENOENT) {
 133                         /* do not reports errors for non-existent files if -f, just skip them */
 134                 } else {
 135                         if (recursive_action(srcName, recursiveFlag, FALSE,
 136                                                                 TRUE, fileAction, dirAction, NULL) == FALSE) {
 137                                 status = EXIT_FAILURE;
 138                         }
 139                 }
 140         }
 141         return status;
 142 }