[279] | 1 | /*
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| 2 | ** dir.c - Dir
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| 3 | **
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| 4 | ** See Copyright Notice in mruby.h
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| 5 | */
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| 6 |
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| 7 | #include "mruby.h"
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| 8 | #include "mruby/class.h"
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| 9 | #include "mruby/data.h"
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| 10 | #include "mruby/string.h"
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| 11 | #include "error.h"
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| 12 | #include <sys/types.h>
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| 13 | #if (defined(_WIN32) || defined(_WIN64)) && !defined(MUSL_LIBC)
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| 14 | #define MAXPATHLEN 1024
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| 15 | #if !defined(PATH_MAX)
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| 16 | #define PATH_MAX MAX_PATH
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| 17 | #endif
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| 18 | #define S_ISDIR(B) ((B)&_S_IFDIR)
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| 19 | #include "Win/dirent.c"
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| 20 | #include <direct.h>
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| 21 | #define rmdir _rmdir
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| 22 | #define getcwd _getcwd
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| 23 | #define mkdir _mkdir
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| 24 | #define chdir _chdir
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| 25 | #elif defined(__NEWLIB__)
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| 26 | #include <sys/param.h>
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| 27 | #include "_dirent.h"
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| 28 | #include <unistd.h>
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| 29 | #else
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| 30 | #include <sys/param.h>
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| 31 | #include <dirent.h>
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| 32 | #include <unistd.h>
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| 33 | #endif
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| 34 | #include <sys/stat.h>
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| 35 | #include <fcntl.h>
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| 36 | #include <stdio.h>
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| 37 | #include <stdlib.h>
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| 38 | #include <signal.h>
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| 39 | #include <string.h>
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| 40 |
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| 41 | /* with/without IO module */
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| 42 | #ifdef ENABLE_IO
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| 43 | #include "mruby/ext/io.h"
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| 44 | #else
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| 45 | #define E_IO_ERROR E_RUNTIME_ERROR
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| 46 | #endif
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| 47 |
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| 48 | struct mrb_dir {
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| 49 | DIR *dir;
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| 50 | };
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| 51 |
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| 52 | void
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| 53 | mrb_dir_free(mrb_state *mrb, void *ptr)
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| 54 | {
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| 55 | struct mrb_dir *mdir = (struct mrb_dir *)ptr;
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| 56 |
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| 57 | if (mdir->dir) {
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| 58 | closedir(mdir->dir);
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| 59 | mdir->dir = NULL;
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| 60 | }
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| 61 | mrb_free(mrb, mdir);
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| 62 | }
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| 63 |
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| 64 | static struct mrb_data_type mrb_dir_type = { "DIR", mrb_dir_free };
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| 65 |
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| 66 | mrb_value
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| 67 | mrb_dir_close(mrb_state *mrb, mrb_value self)
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| 68 | {
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| 69 | struct mrb_dir *mdir;
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| 70 | mdir = (struct mrb_dir *)mrb_get_datatype(mrb, self, &mrb_dir_type);
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| 71 | if (!mdir) return mrb_nil_value();
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| 72 | if (!mdir->dir) {
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| 73 | mrb_raise(mrb, E_IO_ERROR, "closed directory");
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| 74 | }
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| 75 | if (closedir(mdir->dir) == -1) {
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| 76 | mrb_sys_fail(mrb, "closedir");
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| 77 | }
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| 78 | mdir->dir = NULL;
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| 79 | return mrb_nil_value();
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| 80 | }
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| 81 |
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| 82 | mrb_value
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| 83 | mrb_dir_init(mrb_state *mrb, mrb_value self)
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| 84 | {
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| 85 | DIR *dir;
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| 86 | struct mrb_dir *mdir;
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| 87 | mrb_value path;
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| 88 | char *cpath;
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| 89 |
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| 90 | mdir = (struct mrb_dir *)DATA_PTR(self);
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| 91 | if (mdir) {
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| 92 | mrb_dir_free(mrb, mdir);
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| 93 | }
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| 94 | DATA_TYPE(self) = &mrb_dir_type;
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| 95 | DATA_PTR(self) = NULL;
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| 96 |
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| 97 | mdir = (struct mrb_dir *)mrb_malloc(mrb, sizeof(*mdir));
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| 98 | mdir->dir = NULL;
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| 99 | DATA_PTR(self) = mdir;
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| 100 |
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| 101 | mrb_get_args(mrb, "S", &path);
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| 102 | cpath = mrb_str_to_cstr(mrb, path);
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| 103 | if ((dir = opendir(cpath)) == NULL) {
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| 104 | mrb_sys_fail(mrb, cpath);
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| 105 | }
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| 106 | mdir->dir = dir;
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| 107 | return self;
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| 108 | }
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| 109 |
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| 110 | mrb_value
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| 111 | mrb_dir_delete(mrb_state *mrb, mrb_value klass)
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| 112 | {
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| 113 | mrb_value path;
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| 114 | char *cpath;
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| 115 |
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| 116 | mrb_get_args(mrb, "S", &path);
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| 117 | cpath = mrb_str_to_cstr(mrb, path);
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| 118 | if (rmdir(cpath) == -1) {
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| 119 | mrb_sys_fail(mrb, cpath);
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| 120 | }
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| 121 | return mrb_fixnum_value(0);
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| 122 | }
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| 123 |
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| 124 | mrb_value
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| 125 | mrb_dir_existp(mrb_state *mrb, mrb_value klass)
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| 126 | {
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| 127 | mrb_value path;
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| 128 | struct stat sb;
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| 129 | char *cpath;
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| 130 |
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| 131 | mrb_get_args(mrb, "S", &path);
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| 132 | cpath = mrb_str_to_cstr(mrb, path);
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| 133 | if (stat(cpath, &sb) == 0 && S_ISDIR(sb.st_mode)) {
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| 134 | return mrb_true_value();
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| 135 | } else {
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| 136 | return mrb_false_value();
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| 137 | }
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| 138 | }
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| 139 |
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| 140 | mrb_value
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| 141 | mrb_dir_getwd(mrb_state *mrb, mrb_value klass)
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| 142 | {
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| 143 | mrb_value path;
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| 144 |
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| 145 | path = mrb_str_buf_new(mrb, MAXPATHLEN);
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| 146 | if (getcwd(RSTRING_PTR(path), MAXPATHLEN) == NULL) {
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| 147 | mrb_sys_fail(mrb, "getcwd(2)");
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| 148 | }
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| 149 | mrb_str_resize(mrb, path, strlen(RSTRING_PTR(path)));
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| 150 | return path;
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| 151 | }
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| 152 |
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| 153 | mrb_value
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| 154 | mrb_dir_mkdir(mrb_state *mrb, mrb_value klass)
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| 155 | {
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| 156 | mrb_int mode;
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| 157 | mrb_value spath;
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| 158 | char *path;
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| 159 |
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| 160 | mode = 0777;
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| 161 | mrb_get_args(mrb, "S|i", &spath, &mode);
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| 162 | path = mrb_str_to_cstr(mrb, spath);
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| 163 | #if (!defined(_WIN32) && !defined(_WIN64)) || defined(MUSL_LIBC)
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| 164 | if (mkdir(path, mode) == -1) {
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| 165 | #else
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| 166 | if (mkdir(path) == -1) {
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| 167 | #endif
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| 168 | mrb_sys_fail(mrb, path);
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| 169 | }
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| 170 | return mrb_fixnum_value(0);
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| 171 | }
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| 172 |
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| 173 | mrb_value
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| 174 | mrb_dir_chdir(mrb_state *mrb, mrb_value klass)
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| 175 | {
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| 176 | mrb_value spath;
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| 177 | char *path;
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| 178 |
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| 179 | mrb_get_args(mrb, "S", &spath);
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| 180 | path = mrb_str_to_cstr(mrb, spath);
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| 181 | if (chdir(path) == -1) {
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| 182 | mrb_sys_fail(mrb, path);
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| 183 | }
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| 184 | return mrb_fixnum_value(0);
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| 185 | }
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| 186 |
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| 187 | mrb_value
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| 188 | mrb_dir_chroot(mrb_state *mrb, mrb_value self)
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| 189 | {
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| 190 | #if defined(_WIN32) || defined(_WIN64) || defined(__android__)
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| 191 | mrb_raise(mrb, E_NOTIMP_ERROR, "chroot() unreliable on Win platforms");
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| 192 | return mrb_fixnum_value(0);
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| 193 | #else
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| 194 | mrb_value spath;
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| 195 | char *path;
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| 196 | int res;
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| 197 |
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| 198 | mrb_get_args(mrb, "S", &spath);
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| 199 | path = mrb_str_to_cstr(mrb, spath);
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| 200 | res = chroot(path);
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| 201 | if (res == -1) {
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| 202 | mrb_sys_fail(mrb, path);
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| 203 | }
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| 204 |
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| 205 | return mrb_fixnum_value(res);
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| 206 | #endif
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| 207 | }
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| 208 |
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| 209 | mrb_value
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| 210 | mrb_dir_read(mrb_state *mrb, mrb_value self)
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| 211 | {
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| 212 | struct mrb_dir *mdir;
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| 213 | struct dirent *dp;
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| 214 |
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| 215 | mdir = (struct mrb_dir *)mrb_get_datatype(mrb, self, &mrb_dir_type);
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| 216 | if (!mdir) return mrb_nil_value();
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| 217 | if (!mdir->dir) {
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| 218 | mrb_raise(mrb, E_IO_ERROR, "closed directory");
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| 219 | }
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| 220 | dp = readdir(mdir->dir);
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| 221 | if (dp != NULL) {
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| 222 | return mrb_str_new_cstr(mrb, dp->d_name);
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| 223 | } else {
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| 224 | return mrb_nil_value();
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| 225 | }
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| 226 | }
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| 227 |
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| 228 | mrb_value
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| 229 | mrb_dir_rewind(mrb_state *mrb, mrb_value self)
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| 230 | {
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| 231 | struct mrb_dir *mdir;
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| 232 |
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| 233 | mdir = (struct mrb_dir *)mrb_get_datatype(mrb, self, &mrb_dir_type);
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| 234 | if (!mdir) return mrb_nil_value();
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| 235 | if (!mdir->dir) {
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| 236 | mrb_raise(mrb, E_IO_ERROR, "closed directory");
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| 237 | }
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| 238 | rewinddir(mdir->dir);
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| 239 | return self;
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| 240 | }
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| 241 |
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| 242 | mrb_value
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| 243 | mrb_dir_seek(mrb_state *mrb, mrb_value self)
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| 244 | {
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| 245 | #if defined(_WIN32) || defined(_WIN64) || defined(__android__)
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| 246 | mrb_raise(mrb, E_NOTIMP_ERROR, "dirseek() unreliable on Win platforms");
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| 247 | return self;
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| 248 | #else
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| 249 | struct mrb_dir *mdir;
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| 250 | mrb_int pos;
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| 251 |
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| 252 | mdir = (struct mrb_dir *)mrb_get_datatype(mrb, self, &mrb_dir_type);
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| 253 | if (!mdir) return mrb_nil_value();
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| 254 | if (!mdir->dir) {
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| 255 | mrb_raise(mrb, E_IO_ERROR, "closed directory");
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| 256 | }
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| 257 | mrb_get_args(mrb, "i", &pos);
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| 258 | seekdir(mdir->dir, (long)pos);
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| 259 | return self;
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| 260 | #endif
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| 261 | }
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| 262 |
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| 263 | mrb_value
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| 264 | mrb_dir_tell(mrb_state *mrb, mrb_value self)
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| 265 | {
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| 266 | #if defined(_WIN32) || defined(_WIN64) || defined(__android__)
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| 267 | mrb_raise(mrb, E_NOTIMP_ERROR, "dirtell() unreliable on Win platforms");
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| 268 | return mrb_fixnum_value(0);
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| 269 | #else
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| 270 | struct mrb_dir *mdir;
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| 271 | mrb_int pos;
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| 272 |
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| 273 | mdir = (struct mrb_dir *)mrb_get_datatype(mrb, self, &mrb_dir_type);
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| 274 | if (!mdir) return mrb_nil_value();
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| 275 | if (!mdir->dir) {
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| 276 | mrb_raise(mrb, E_IO_ERROR, "closed directory");
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| 277 | }
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| 278 | pos = (mrb_int)telldir(mdir->dir);
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| 279 | return mrb_fixnum_value(pos);
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| 280 | #endif
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| 281 | }
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| 282 |
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| 283 | void
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| 284 | mrb_mruby_dir_gem_init(mrb_state *mrb)
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| 285 | {
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| 286 | struct RClass *d;
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| 287 |
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| 288 | d = mrb_define_class(mrb, "Dir", mrb->object_class);
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| 289 | MRB_SET_INSTANCE_TT(d, MRB_TT_DATA);
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| 290 | mrb_define_class_method(mrb, d, "delete", mrb_dir_delete, MRB_ARGS_REQ(1));
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| 291 | mrb_define_class_method(mrb, d, "exist?", mrb_dir_existp, MRB_ARGS_REQ(1));
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| 292 | mrb_define_class_method(mrb, d, "getwd", mrb_dir_getwd, MRB_ARGS_NONE());
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| 293 | mrb_define_class_method(mrb, d, "mkdir", mrb_dir_mkdir, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(1));
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| 294 | mrb_define_class_method(mrb, d, "_chdir", mrb_dir_chdir, MRB_ARGS_REQ(1));
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| 295 | mrb_define_class_method(mrb, d, "chroot", mrb_dir_chroot, MRB_ARGS_REQ(1));
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| 296 |
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| 297 | mrb_define_method(mrb, d, "close", mrb_dir_close, MRB_ARGS_NONE());
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| 298 | mrb_define_method(mrb, d, "initialize", mrb_dir_init, MRB_ARGS_REQ(1));
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| 299 | mrb_define_method(mrb, d, "read", mrb_dir_read, MRB_ARGS_NONE());
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| 300 | mrb_define_method(mrb, d, "rewind", mrb_dir_rewind, MRB_ARGS_NONE());
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| 301 | mrb_define_method(mrb, d, "seek", mrb_dir_seek, MRB_ARGS_REQ(1));
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| 302 | mrb_define_method(mrb, d, "tell", mrb_dir_tell, MRB_ARGS_NONE());
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| 303 | }
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| 304 |
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| 305 | void
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| 306 | mrb_mruby_dir_gem_final(mrb_state *mrb)
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| 307 | {
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| 308 | }
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