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