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annotate toys/other/lsattr.c @ 1736:5892daac85ab draft

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author Rob Landley <rob@landley.net>
date Thu, 12 Mar 2015 15:34:03 -0500
parents ffc7f606ce5b
children
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1272
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
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1 /* lsattr.c - List file attributes on a Linux second extended file system.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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2 *
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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3 * Copyright 2013 Ranjan Kumar <ranjankumar.bth@gmail.com>
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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4 * Copyright 2013 Kyungwan Han <asura321@gmail.com>
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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5 *
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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6 * No Standard.
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7
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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8 USE_LSATTR(NEWTOY(lsattr, "vldaR", TOYFLAG_BIN))
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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9 USE_CHATTR(NEWTOY(chattr, NULL, TOYFLAG_BIN))
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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10
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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11 config LSATTR
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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12 bool "lsattr"
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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13 default y
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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14 help
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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15 usage: lsattr [-Radlv] [Files...]
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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16
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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17 List file attributes on a Linux second extended file system.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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18
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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19 -R Recursively list attributes of directories and their contents.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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20 -a List all files in directories, including files that start with '.'.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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21 -d List directories like other files, rather than listing their contents.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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22 -l List long flag names.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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23 -v List the file's version/generation number.
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24
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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25 config CHATTR
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26 bool "chattr"
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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27 default y
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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28 help
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29 usage: chattr [-R] [-+=AacDdijsStTu] [-v version] [File...]
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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30
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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31 Change file attributes on a Linux second extended file system.
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32
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33 Operators:
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34 '-' Remove attributes.
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35 '+' Add attributes.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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36 '=' Set attributes.
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37
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38 Attributes:
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39 A Don't track atime.
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40 a Append mode only.
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41 c Enable compress.
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42 D Write dir contents synchronously.
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43 d Don't backup with dump.
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44 i Cannot be modified (immutable).
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45 j Write all data to journal first.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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46 s Zero disk storage when deleted.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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47 S Write file contents synchronously.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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48 t Disable tail-merging of partial blocks with other files.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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49 u Allow file to be undeleted.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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50 -R Recurse.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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51 -v Set the file's version/generation number.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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52
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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53 */
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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54 #define FOR_lsattr
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55 #include "toys.h"
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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56 #include <linux/fs.h>
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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57
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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58 static struct ext2_attr {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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59 char *name;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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60 unsigned long flag;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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61 char opt;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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62 } e2attrs[] = {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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63 {"Secure_Deletion", FS_SECRM_FL, 's'}, // Secure deletion
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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64 {"Undelete", FS_UNRM_FL, 'u'}, // Undelete
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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65 {"Compression_Requested", FS_COMPR_FL, 'c'}, // Compress file
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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66 {"Synchronous_Updates", FS_SYNC_FL, 'S'}, // Synchronous updates
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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67 {"Immutable", FS_IMMUTABLE_FL, 'i'}, // Immutable file
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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68 {"Append_Only", FS_APPEND_FL, 'a'}, // writes to file may only append
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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69 {"No_Dump", FS_NODUMP_FL, 'd'}, // do not dump file
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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70 {"No_Atime", FS_NOATIME_FL, 'A'}, // do not update atime
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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71 {"Indexed_directory", FS_INDEX_FL, 'I'}, // hash-indexed directory
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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72 {"Journaled_Data", FS_JOURNAL_DATA_FL, 'j'}, // file data should be journaled
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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73 {"No_Tailmerging", FS_NOTAIL_FL, 't'}, // file tail should not be merged
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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74 {"Synchronous_Directory_Updates", FS_DIRSYNC_FL, 'D'}, // dirsync behaviour (directories only)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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75 {"Top_of_Directory_Hierarchies", FS_TOPDIR_FL, 'T'}, // Top of directory hierarchies
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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76 {NULL, -1, 0},
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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77 };
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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78
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79 // Get file flags on a Linux second extended file system.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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80 static int ext2_getflag(int fd, struct stat *sb, unsigned long *flag)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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81 {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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82 if(!S_ISREG(sb->st_mode) && !S_ISDIR(sb->st_mode)) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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83 errno = EOPNOTSUPP;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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84 return -1;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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85 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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86 return (ioctl(fd, FS_IOC_GETFLAGS, (void*)flag));
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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87 }
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88
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89 static void print_file_attr(char *path)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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90 {
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91 unsigned long flag = 0, version = 0;
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92 int fd;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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93 struct stat sb;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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94
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95 if (!stat(path, &sb) && !S_ISREG(sb.st_mode) && !S_ISDIR(sb.st_mode)) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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96 errno = EOPNOTSUPP;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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97 goto LABEL1;
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98 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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99 if (-1 == (fd=open(path, O_RDONLY | O_NONBLOCK))) goto LABEL1;
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100
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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101 if (toys.optflags & FLAG_v) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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102 if (ioctl(fd, FS_IOC_GETVERSION, (void*)&version) < 0) goto LABEL2;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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103 xprintf("%5lu ", version);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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104 }
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105
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106 if (ext2_getflag(fd, &sb, &flag) < 0) perror_msg("reading flags '%s'", path);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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107 else {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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108 struct ext2_attr *ptr = e2attrs;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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109
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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110 if (toys.optflags & FLAG_l) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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111 int name_found = 0;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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112
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113 xprintf("%-50s ", path);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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114 for (; ptr->name; ptr++) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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115 if (flag & ptr->flag) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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116 if (name_found) xprintf(", "); //for formatting.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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117 xprintf("%s", ptr->name);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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118 name_found = 1;
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119 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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120 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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121 if (!name_found) xprintf("---");
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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122 xputc('\n');
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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123 } else {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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124 int index = 0;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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125
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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126 for (; ptr->name; ptr++)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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127 toybuf[index++] = (flag & ptr->flag) ? ptr->opt : '-';
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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128 toybuf[index] = '\0';
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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129 xprintf("%s %s\n", toybuf, path);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
130 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
131 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
132 xclose(fd);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
133 return;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
134 LABEL2: xclose(fd);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
135 LABEL1: perror_msg("reading '%s'", path);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
136 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
137
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
138 // Get directory information.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
139 static int retell_dir(struct dirtree *root)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
140 {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
141 char *fpath = NULL;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
142
1404
ffc7f606ce5b Move DIRTREE_COMEAGAIN second callback up to when the filehandle is still open, and add dir->again variable to distinguish second call instead of checking for -1 filehandle.
Rob Landley <rob@landley.net>
parents: 1272
diff changeset
143 if (root->again) {
1272
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
144 xputc('\n');
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
145 return 0;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
146 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
147 if (S_ISDIR(root->st.st_mode) && !root->parent)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
148 return (DIRTREE_RECURSE | DIRTREE_COMEAGAIN);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
149
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
150 fpath = dirtree_path(root, NULL);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
151 //Special case: with '-a' option and '.'/'..' also included in printing list.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
152 if ((root->name[0] != '.') || (toys.optflags & FLAG_a)) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
153 print_file_attr(fpath);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
154 if (S_ISDIR(root->st.st_mode) && (toys.optflags & FLAG_R)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
155 && dirtree_notdotdot(root)) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
156 xprintf("\n%s:\n", fpath);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
157 free(fpath);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
158 return (DIRTREE_RECURSE | DIRTREE_COMEAGAIN);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
159 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
160 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
161 free(fpath);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
162 return 0;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
163 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
164
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
165 void lsattr_main(void)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
166 {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
167 if (!*toys.optargs) dirtree_read(".", retell_dir);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
168 else
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
169 for (; *toys.optargs; toys.optargs++) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
170 struct stat sb;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
171
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
172 if (lstat(*toys.optargs, &sb)) perror_msg("stat '%s'", *toys.optargs);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
173 else if (S_ISDIR(sb.st_mode) && !(toys.optflags & FLAG_d))
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
174 dirtree_read(*toys.optargs, retell_dir);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
175 else print_file_attr(*toys.optargs);// to handle "./Filename" or "./Dir"
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
176 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
177 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
178
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
179 // Switch gears from lsattr to chattr.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
180 #define CLEANUP_lsattr
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
181 #define FOR_chattr
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
182 #include "generated/flags.h"
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
183
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
184 static struct _chattr {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
185 unsigned long add, rm, set, version;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
186 unsigned char vflag, recursive;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
187 } chattr;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
188
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
189 static inline void chattr_help(void)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
190 {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
191 toys.exithelp++;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
192 error_exit("Invalid Argument");
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
193 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
194
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
195 // Set file flags on a Linux second extended file system.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
196 static inline int ext2_setflag(int fd, struct stat *sb, unsigned long flag)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
197 {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
198 if (!S_ISREG(sb->st_mode) && !S_ISDIR(sb->st_mode)) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
199 errno = EOPNOTSUPP;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
200 return -1;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
201 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
202 return (ioctl(fd, FS_IOC_SETFLAGS, (void*)&flag));
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
203 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
204
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
205 static unsigned long get_flag_val(char ch)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
206 {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
207 struct ext2_attr *ptr = e2attrs;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
208
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
209 for (; ptr->name; ptr++)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
210 if (ptr->opt == ch) return ptr->flag;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
211 chattr_help(); // if no match found then Show help
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
212 return 0; // silent warning.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
213 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
214
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
215 // Parse command line argument and fill the chattr structure.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
216 static void parse_cmdline_arg(char ***argv)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
217 {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
218 char *arg = **argv, *ptr = NULL;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
219
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
220 while (arg) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
221 switch (arg[0]) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
222 case '-':
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
223 for (ptr = ++arg; *ptr; ptr++) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
224 if (*ptr == 'R') {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
225 chattr.recursive = 1;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
226 continue;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
227 } else if (*ptr == 'v') {// get version from next argv.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
228 char *endptr;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
229
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
230 errno = 0;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
231 arg = *(*argv += 1);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
232 if (!arg) chattr_help();
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
233 if (*arg == '-') perror_exit("Invalid Number '%s'", arg);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
234 chattr.version = strtoul(arg, &endptr, 0);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
235 if (errno || *endptr) perror_exit("bad version '%s'", arg);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
236 chattr.vflag = 1;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
237 continue;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
238 } else chattr.rm |= get_flag_val(*ptr);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
239 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
240 break;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
241 case '+':
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
242 for (ptr = ++arg; *ptr; ptr++)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
243 chattr.add |= get_flag_val(*ptr);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
244 break;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
245 case '=':
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
246 for (ptr = ++arg; *ptr; ptr++)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
247 chattr.set |= get_flag_val(*ptr);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
248 break;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
249 default: return;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
250 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
251 arg = *(*argv += 1);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
252 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
253 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
254
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
255 // Update attribute of given file.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
256 static int update_attr(struct dirtree *root)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
257 {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
258 unsigned long fval = 0;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
259 char *fpath = NULL;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
260 int fd;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
261
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
262 if (!dirtree_notdotdot(root)) return 0;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
parents:
diff changeset
263
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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264 /*
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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265 * if file is a link and recursive is set or file is not regular+link+dir
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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266 * (like fifo or dev file) then escape the file.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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267 */
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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268 if ((S_ISLNK(root->st.st_mode) && chattr.recursive)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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269 || (!S_ISREG(root->st.st_mode) && !S_ISLNK(root->st.st_mode)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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270 && !S_ISDIR(root->st.st_mode)))
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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271 return 0;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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272
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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273 fpath = dirtree_path(root, NULL);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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274 if (-1 == (fd=open(fpath, O_RDONLY | O_NONBLOCK))) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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275 free(fpath);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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276 return DIRTREE_ABORT;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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277 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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278 // Get current attr of file.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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279 if (ext2_getflag(fd, &(root->st), &fval) < 0) {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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280 perror_msg("read flags of '%s'", fpath);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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281 free(fpath);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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282 xclose(fd);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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283 return DIRTREE_ABORT;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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284 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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285 if (chattr.set) { // for '=' operator.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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286 if (ext2_setflag(fd, &(root->st), chattr.set) < 0)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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287 perror_msg("setting flags '%s'", fpath);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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288 } else { // for '-' / '+' operator.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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289 fval &= ~(chattr.rm);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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290 fval |= chattr.add;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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291 if (!S_ISDIR(root->st.st_mode)) fval &= ~FS_DIRSYNC_FL;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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292 if (ext2_setflag(fd, &(root->st), fval) < 0)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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293 perror_msg("setting flags '%s'", fpath);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
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294 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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295 if (chattr.vflag) { // set file version
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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296 if (ioctl(fd, FS_IOC_SETVERSION, (void*)&chattr.version) < 0)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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297 perror_msg("while setting version on '%s'", fpath);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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298 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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299 free(fpath);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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300 xclose(fd);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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301
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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302 if (S_ISDIR(root->st.st_mode) && chattr.recursive) return DIRTREE_RECURSE;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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303 return 0;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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304 }
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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305
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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306 void chattr_main(void)
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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307 {
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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308 char **argv = toys.optargs;
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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309
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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310 memset(&chattr, 0, sizeof(struct _chattr));
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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311 parse_cmdline_arg(&argv);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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312 if (!*argv) chattr_help();
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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313 if (chattr.set && (chattr.add || chattr.rm))
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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314 error_exit("'=' is incompatible with '-' and '+'");
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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315 if (chattr.rm & chattr.add) error_exit("Can't set and unset same flag.");
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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316 if (!(chattr.add || chattr.rm || chattr.set || chattr.vflag))
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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317 error_exit(("Must use '-v', '=', '-' or '+'"));
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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318 for (; *argv; argv++) dirtree_read(*argv, update_attr);
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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319 toys.exitval = 0; //always set success at this point.
17935382d2c1 Attached is the patch for lsattr and chattr implementation.
Ashwini Sharma <ak.ashwini1981@gmail.com>
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320 }