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annotate rvinterf/etmsync/cleandir.c @ 620:dd162a4cb9fa

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CHANGES: objective performance comparison instead of blind patch
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 27 Feb 2020 01:21:58 +0000
parents e6fe9d25377a
children
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rev   line source
594
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1 /*
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2 * The implementation of cleandir and rm-subtree commands lives here.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include "etm.h"
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11 #include "ffs.h"
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12 #include "tmffs2.h"
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13 #include "limits.h"
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14 #include "ffslimits.h"
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15 #include "localtypes.h"
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16 #include "localstruct.h"
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17 #include "exitcodes.h"
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18
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19 extern char *pathname_for_ffs_child();
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20
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21 cleandir_level(ffspath_dir)
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22 char *ffspath_dir;
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23 {
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24 u_char rdstate[4];
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25 char rdbuf[MAX_FN_COMPONENT+1], ffspath_child[MAX_FULL_PATHNAME+1];
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26 char *childp;
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27 int nument, i, rc;
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28 struct stat_info stat;
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29
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30 rc = do_opendir(ffspath_dir, rdstate, &nument);
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31 if (rc)
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32 return(rc);
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33 if (!nument)
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34 return(0);
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35 childp = pathname_for_ffs_child(ffspath_dir, ffspath_child);
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36 if (!childp) {
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37 printf("error: non-empty dir at the limit of pathname depth\n");
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38 return(ERROR_TARGET);
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39 }
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40 for (i = 0; i < nument; i++) {
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41 rc = do_readdir(rdstate, rdbuf, MAX_FN_COMPONENT+1);
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42 if (rc)
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43 return(rc);
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44 if (index(rdbuf, '/')) {
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45 printf("error: readdir result contains a slash\n");
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46 return(ERROR_TARGET);
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47 }
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48 strcpy(childp, rdbuf);
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49 rc = do_xlstat(ffspath_child, &stat);
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50 if (rc) {
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51 printf("xlstat failed on %s\n", ffspath_child);
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52 return(rc);
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53 }
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54 if (stat.type == OT_DIR) {
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55 rc = cleandir_level(ffspath_child);
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56 if (rc)
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57 return(rc);
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58 }
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59 rc = do_ffs_remove(ffspath_child, 0);
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60 if (rc)
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61 return(rc);
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62 }
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63 return(0);
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64 }
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65
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66 cmd_cleandir(argc, argv)
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67 char **argv;
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68 {
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69 int rc;
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70
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71 rc = validate_ffs_pathname(argv[1]);
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72 if (rc < 0)
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73 return(ERROR_USAGE); /* err msg already printed */
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74 if (rc == 0) {
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75 fprintf(stderr, "error: cleandir / is not allowed\n");
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76 return(ERROR_USAGE);
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77 }
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78 return cleandir_level(argv[1]);
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79 }
595
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80
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81 cmd_rm_subtree(argc, argv)
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82 char **argv;
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83 {
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84 char *pathname;
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85 int rc, minusf_mode, found;
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86 struct stat_info stat;
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87
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88 if (argc == 2) {
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89 pathname = argv[1];
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90 minusf_mode = 0;
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91 } else {
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92 if (strcmp(argv[1], "-f")) {
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93 fprintf(stderr,
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94 "usage: rm-subtree [-f] ffs_pathname\n");
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95 return(ERROR_USAGE);
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96 }
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97 pathname = argv[2];
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98 minusf_mode = 1;
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99 }
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100 rc = validate_ffs_pathname(pathname);
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101 if (rc < 0)
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102 return(ERROR_USAGE); /* err msg already printed */
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103 if (rc == 0) {
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104 fprintf(stderr, "error: rm-subtree / is not allowed\n");
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105 return(ERROR_USAGE);
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106 }
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107 if (minusf_mode) {
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108 rc = do_xlstat_notfoundok(pathname, &found, &stat);
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109 if (rc)
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110 return(rc);
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111 if (!found)
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112 return(0);
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113 } else {
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114 rc = do_xlstat(pathname, &stat);
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115 if (rc)
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116 return(rc);
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117 }
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118 if (stat.type != OT_DIR) {
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119 printf("error: %s exists and is not a directory\n", pathname);
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120 return(ERROR_TARGET);
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121 }
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122 rc = cleandir_level(pathname);
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123 if (rc)
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124 return(rc);
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125 return do_ffs_remove(pathname, 0);
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126 }