[279] | 1 | /*
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| 2 | ** io.c - IO class
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| 3 | */
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| 4 |
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| 5 | #include "mruby.h"
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| 6 | #include "mruby/array.h"
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| 7 | #include "mruby/class.h"
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| 8 | #include "mruby/data.h"
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| 9 | #include "mruby/hash.h"
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| 10 | #include "mruby/string.h"
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| 11 | #include "mruby/variable.h"
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| 12 | #include "mruby/ext/io.h"
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| 13 |
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| 14 | #if MRUBY_RELEASE_NO < 10000
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| 15 | #include "error.h"
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| 16 | #else
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| 17 | #include "mruby/error.h"
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| 18 | #endif
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| 19 |
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| 20 | #include <sys/types.h>
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| 21 | #include <sys/stat.h>
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| 22 |
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| 23 | #if defined(_WIN32) || defined(_WIN64)
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| 24 | #include <winsock.h>
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| 25 | #include <io.h>
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| 26 | #define open _open
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| 27 | #define close _close
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| 28 | #define read _read
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| 29 | #define write _write
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| 30 | #define lseek _lseek
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| 31 | #else
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| 32 | #include <sys/wait.h>
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| 33 | #include <unistd.h>
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| 34 | #endif
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| 35 |
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| 36 | #include <fcntl.h>
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| 37 |
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| 38 | #include <errno.h>
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| 39 | #include <stdio.h>
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| 40 | #include <string.h>
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| 41 |
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| 42 |
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| 43 | static void mrb_io_free(mrb_state *mrb, void *ptr);
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| 44 | struct mrb_data_type mrb_io_type = { "IO", mrb_io_free };
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| 45 |
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| 46 |
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| 47 | static struct mrb_io *io_get_open_fptr(mrb_state *mrb, mrb_value self);
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| 48 | static int mrb_io_modestr_to_flags(mrb_state *mrb, const char *modestr);
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| 49 | static int mrb_io_flags_to_modenum(mrb_state *mrb, int flags);
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| 50 | static void fptr_finalize(mrb_state *mrb, struct mrb_io *fptr, int quiet);
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| 51 |
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| 52 | #if MRUBY_RELEASE_NO < 10000
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| 53 | static struct RClass *
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| 54 | mrb_module_get(mrb_state *mrb, const char *name)
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| 55 | {
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| 56 | return mrb_class_get(mrb, name);
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| 57 | }
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| 58 | #endif
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| 59 |
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| 60 | static struct mrb_io *
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| 61 | io_get_open_fptr(mrb_state *mrb, mrb_value self)
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| 62 | {
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| 63 | struct mrb_io *fptr;
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| 64 |
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| 65 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, self, &mrb_io_type);
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| 66 | if (fptr->fd < 0) {
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| 67 | mrb_raise(mrb, E_IO_ERROR, "closed stream.");
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| 68 | }
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| 69 | return fptr;
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| 70 | }
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| 71 |
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| 72 | #if !defined(_WIN32) && !defined(_WIN64)
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| 73 | static void
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| 74 | io_set_process_status(mrb_state *mrb, pid_t pid, int status)
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| 75 | {
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| 76 | struct RClass *c_process, *c_status;
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| 77 | mrb_value v;
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| 78 |
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| 79 | c_status = NULL;
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| 80 | if (mrb_class_defined(mrb, "Process")) {
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| 81 | c_process = mrb_module_get(mrb, "Process");
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| 82 | if (mrb_const_defined(mrb, mrb_obj_value(c_process), mrb_intern_cstr(mrb, "Status"))) {
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| 83 | c_status = mrb_class_get_under(mrb, c_process, "Status");
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| 84 | }
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| 85 | }
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| 86 | if (c_status != NULL) {
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| 87 | v = mrb_funcall(mrb, mrb_obj_value(c_status), "new", 2, mrb_fixnum_value(pid), mrb_fixnum_value(status));
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| 88 | } else {
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| 89 | v = mrb_fixnum_value(WEXITSTATUS(status));
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| 90 | }
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| 91 | mrb_gv_set(mrb, mrb_intern_cstr(mrb, "$?"), v);
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| 92 | }
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| 93 | #endif
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| 94 |
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| 95 | static int
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| 96 | mrb_io_modestr_to_flags(mrb_state *mrb, const char *mode)
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| 97 | {
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| 98 | int flags = 0;
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| 99 | const char *m = mode;
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| 100 |
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| 101 | switch (*m++) {
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| 102 | case 'r':
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| 103 | flags |= FMODE_READABLE;
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| 104 | break;
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| 105 | case 'w':
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| 106 | flags |= FMODE_WRITABLE | FMODE_CREATE | FMODE_TRUNC;
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| 107 | break;
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| 108 | case 'a':
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| 109 | flags |= FMODE_WRITABLE | FMODE_APPEND | FMODE_CREATE;
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| 110 | break;
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| 111 | default:
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| 112 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "illegal access mode %S", mrb_str_new_cstr(mrb, mode));
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| 113 | }
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| 114 |
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| 115 | while (*m) {
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| 116 | switch (*m++) {
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| 117 | case 'b':
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| 118 | flags |= FMODE_BINMODE;
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| 119 | break;
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| 120 | case '+':
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| 121 | flags |= FMODE_READWRITE;
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| 122 | break;
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| 123 | case ':':
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| 124 | /* XXX: PASSTHROUGH*/
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| 125 | default:
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| 126 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "illegal access mode %S", mrb_str_new_cstr(mrb, mode));
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| 127 | }
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| 128 | }
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| 129 |
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| 130 | return flags;
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| 131 | }
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| 132 |
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| 133 | static int
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| 134 | mrb_io_flags_to_modenum(mrb_state *mrb, int flags)
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| 135 | {
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| 136 | int modenum = 0;
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| 137 |
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| 138 | switch(flags & (FMODE_READABLE|FMODE_WRITABLE|FMODE_READWRITE)) {
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| 139 | case FMODE_READABLE:
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| 140 | modenum = O_RDONLY;
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| 141 | break;
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| 142 | case FMODE_WRITABLE:
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| 143 | modenum = O_WRONLY;
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| 144 | break;
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| 145 | case FMODE_READWRITE:
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| 146 | modenum = O_RDWR;
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| 147 | break;
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| 148 | }
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| 149 |
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| 150 | if (flags & FMODE_APPEND) {
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| 151 | modenum |= O_APPEND;
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| 152 | }
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| 153 | if (flags & FMODE_TRUNC) {
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| 154 | modenum |= O_TRUNC;
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| 155 | }
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| 156 | if (flags & FMODE_CREATE) {
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| 157 | modenum |= O_CREAT;
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| 158 | }
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| 159 | #ifdef O_BINARY
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| 160 | if (flags & FMODE_BINMODE) {
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| 161 | modenum |= O_BINARY;
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| 162 | }
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| 163 | #endif
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| 164 |
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| 165 | return modenum;
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| 166 | }
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| 167 |
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| 168 | void
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| 169 | mrb_fd_cloexec(mrb_state *mrb, int fd)
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| 170 | {
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| 171 | #if defined(F_GETFD) && defined(F_SETFD) && defined(FD_CLOEXEC)
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| 172 | int flags, flags2;
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| 173 |
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| 174 | flags = fcntl(fd, F_GETFD);
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| 175 | if (flags == -1) {
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| 176 | mrb_sys_fail(mrb, "fcntl");
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| 177 | }
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| 178 | if (fd <= 2) {
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| 179 | flags2 = flags & ~FD_CLOEXEC; /* Clear CLOEXEC for standard file descriptors: 0, 1, 2. */
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| 180 | }
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| 181 | else {
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| 182 | flags2 = flags | FD_CLOEXEC; /* Set CLOEXEC for non-standard file descriptors: 3, 4, 5, ... */
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| 183 | }
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| 184 | if (flags != flags2) {
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| 185 | if (fcntl(fd, F_SETFD, flags2) == -1) {
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| 186 | mrb_sys_fail(mrb, "fcntl");
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| 187 | }
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| 188 | }
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| 189 | #endif
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| 190 | }
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| 191 |
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| 192 | #if !defined(_WIN32) && !defined(_WIN64) && !defined(__NEWLIB__)
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| 193 | static int
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| 194 | mrb_cloexec_pipe(mrb_state *mrb, int fildes[2])
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| 195 | {
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| 196 | int ret;
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| 197 | ret = pipe(fildes);
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| 198 | if (ret == -1)
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| 199 | return -1;
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| 200 | mrb_fd_cloexec(mrb, fildes[0]);
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| 201 | mrb_fd_cloexec(mrb, fildes[1]);
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| 202 | return ret;
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| 203 | }
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| 204 |
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| 205 | static int
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| 206 | mrb_pipe(mrb_state *mrb, int pipes[2])
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| 207 | {
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| 208 | int ret;
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| 209 | ret = mrb_cloexec_pipe(mrb, pipes);
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| 210 | if (ret == -1) {
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| 211 | if (errno == EMFILE || errno == ENFILE) {
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| 212 | mrb_garbage_collect(mrb);
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| 213 | ret = mrb_cloexec_pipe(mrb, pipes);
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| 214 | }
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| 215 | }
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| 216 | return ret;
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| 217 | }
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| 218 |
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| 219 | static int
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| 220 | mrb_proc_exec(const char *pname)
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| 221 | {
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| 222 | const char *s;
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| 223 | s = pname;
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| 224 |
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| 225 | while (*s == ' ' || *s == '\t' || *s == '\n')
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| 226 | s++;
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| 227 |
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| 228 | if (!*s) {
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| 229 | errno = ENOENT;
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| 230 | return -1;
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| 231 | }
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| 232 |
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| 233 | execl("/bin/sh", "sh", "-c", pname, (char *)NULL);
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| 234 | return -1;
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| 235 | }
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| 236 | #endif
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| 237 |
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| 238 | static void
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| 239 | mrb_io_free(mrb_state *mrb, void *ptr)
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| 240 | {
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| 241 | struct mrb_io *io = (struct mrb_io *)ptr;
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| 242 | if (io != NULL) {
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| 243 | fptr_finalize(mrb, io, TRUE);
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| 244 | mrb_free(mrb, io);
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| 245 | }
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| 246 | }
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| 247 |
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| 248 | static struct mrb_io *
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| 249 | mrb_io_alloc(mrb_state *mrb)
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| 250 | {
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| 251 | struct mrb_io *fptr;
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| 252 |
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| 253 | fptr = (struct mrb_io *)mrb_malloc(mrb, sizeof(struct mrb_io));
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| 254 | fptr->fd = -1;
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| 255 | fptr->fd2 = -1;
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| 256 | fptr->pid = 0;
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| 257 | fptr->readable = 0;
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| 258 | fptr->writable = 0;
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| 259 | fptr->sync = 0;
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| 260 | return fptr;
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| 261 | }
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| 262 |
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| 263 | #ifndef NOFILE
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| 264 | #define NOFILE 64
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| 265 | #endif
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| 266 |
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| 267 | #if !defined(_WIN32) && !defined(_WIN64) && !defined(__NEWLIB__)
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| 268 | static int
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| 269 | option_to_fd(mrb_state *mrb, mrb_value obj, const char *key)
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| 270 | {
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| 271 | mrb_value opt = mrb_funcall(mrb, obj, "[]", 1, mrb_symbol_value(mrb_intern_static(mrb, key, strlen(key))));
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| 272 | if (mrb_nil_p(opt)) {
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| 273 | return -1;
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| 274 | }
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| 275 |
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| 276 | switch (mrb_type(opt)) {
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| 277 | case MRB_TT_DATA: /* IO */
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| 278 | return mrb_fixnum(mrb_io_fileno(mrb, opt));
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| 279 | case MRB_TT_FIXNUM:
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| 280 | return mrb_fixnum(opt);
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| 281 | default:
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| 282 | mrb_raise(mrb, E_ARGUMENT_ERROR, "wrong exec redirect action");
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| 283 | break;
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| 284 | }
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| 285 | return -1; /* never reached */
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| 286 | }
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| 287 |
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| 288 | mrb_value
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| 289 | mrb_io_s_popen(mrb_state *mrb, mrb_value klass)
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| 290 | {
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| 291 | mrb_value cmd, io, result;
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| 292 | mrb_value mode = mrb_str_new_cstr(mrb, "r");
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| 293 | mrb_value opt = mrb_hash_new(mrb);
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| 294 |
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| 295 | struct mrb_io *fptr;
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| 296 | const char *pname;
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| 297 | int pid, flags, fd, write_fd = -1;
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| 298 | int pr[2] = { -1, -1 };
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| 299 | int pw[2] = { -1, -1 };
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| 300 | int doexec;
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| 301 | int saved_errno;
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| 302 | int opt_in, opt_out, opt_err;
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| 303 |
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| 304 | mrb_get_args(mrb, "S|SH", &cmd, &mode, &opt);
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| 305 | io = mrb_obj_value(mrb_data_object_alloc(mrb, mrb_class_ptr(klass), NULL, &mrb_io_type));
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| 306 |
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| 307 | pname = mrb_string_value_cstr(mrb, &cmd);
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| 308 | flags = mrb_io_modestr_to_flags(mrb, mrb_string_value_cstr(mrb, &mode));
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| 309 |
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| 310 | doexec = (strcmp("-", pname) != 0);
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| 311 | opt_in = option_to_fd(mrb, opt, "in");
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| 312 | opt_out = option_to_fd(mrb, opt, "out");
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| 313 | opt_err = option_to_fd(mrb, opt, "err");
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| 314 |
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| 315 | if (flags & FMODE_READABLE) {
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| 316 | if (pipe(pr) == -1) {
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| 317 | mrb_sys_fail(mrb, "pipe");
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| 318 | }
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| 319 | mrb_fd_cloexec(mrb, pr[0]);
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| 320 | mrb_fd_cloexec(mrb, pr[1]);
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| 321 | }
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| 322 |
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| 323 | if (flags & FMODE_WRITABLE) {
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| 324 | if (pipe(pw) == -1) {
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| 325 | if (pr[0] != -1) close(pr[0]);
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| 326 | if (pr[1] != -1) close(pr[1]);
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| 327 | mrb_sys_fail(mrb, "pipe");
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| 328 | }
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| 329 | mrb_fd_cloexec(mrb, pw[0]);
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| 330 | mrb_fd_cloexec(mrb, pw[1]);
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| 331 | }
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| 332 |
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| 333 | if (!doexec) {
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| 334 | // XXX
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| 335 | fflush(stdin);
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| 336 | fflush(stdout);
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| 337 | fflush(stderr);
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| 338 | }
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| 339 |
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| 340 | result = mrb_nil_value();
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| 341 | switch (pid = fork()) {
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| 342 | case 0: /* child */
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| 343 | if (opt_in != -1) {
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| 344 | dup2(opt_in, 0);
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| 345 | }
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| 346 | if (opt_out != -1) {
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| 347 | dup2(opt_out, 1);
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| 348 | }
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| 349 | if (opt_err != -1) {
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| 350 | dup2(opt_err, 2);
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| 351 | }
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| 352 | if (flags & FMODE_READABLE) {
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| 353 | close(pr[0]);
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| 354 | if (pr[1] != 1) {
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| 355 | dup2(pr[1], 1);
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| 356 | close(pr[1]);
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| 357 | }
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| 358 | }
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| 359 | if (flags & FMODE_WRITABLE) {
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| 360 | close(pw[1]);
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| 361 | if (pw[0] != 0) {
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| 362 | dup2(pw[0], 0);
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| 363 | close(pw[0]);
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| 364 | }
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| 365 | }
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| 366 | if (doexec) {
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| 367 | for (fd = 3; fd < NOFILE; fd++) {
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| 368 | close(fd);
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| 369 | }
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| 370 | mrb_proc_exec(pname);
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| 371 | mrb_raisef(mrb, E_IO_ERROR, "command not found: %S", cmd);
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| 372 | _exit(127);
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| 373 | }
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| 374 | result = mrb_nil_value();
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| 375 | break;
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| 376 |
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| 377 | default: /* parent */
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| 378 | if ((flags & FMODE_READABLE) && (flags & FMODE_WRITABLE)) {
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| 379 | close(pr[1]);
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| 380 | fd = pr[0];
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| 381 | close(pw[0]);
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| 382 | write_fd = pw[1];
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| 383 | } else if (flags & FMODE_READABLE) {
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| 384 | close(pr[1]);
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| 385 | fd = pr[0];
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| 386 | } else {
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| 387 | close(pw[0]);
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| 388 | fd = pw[1];
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| 389 | }
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| 390 |
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| 391 | mrb_iv_set(mrb, io, mrb_intern_cstr(mrb, "@buf"), mrb_str_new_cstr(mrb, ""));
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| 392 | mrb_iv_set(mrb, io, mrb_intern_cstr(mrb, "@pos"), mrb_fixnum_value(0));
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| 393 |
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| 394 | fptr = mrb_io_alloc(mrb);
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| 395 | fptr->fd = fd;
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| 396 | fptr->fd2 = write_fd;
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| 397 | fptr->pid = pid;
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| 398 | fptr->readable = ((flags & FMODE_READABLE) != 0);
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| 399 | fptr->writable = ((flags & FMODE_WRITABLE) != 0);
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| 400 | fptr->sync = 0;
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| 401 |
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| 402 | DATA_TYPE(io) = &mrb_io_type;
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| 403 | DATA_PTR(io) = fptr;
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| 404 | result = io;
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| 405 | break;
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| 406 |
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| 407 | case -1: /* error */
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| 408 | saved_errno = errno;
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| 409 | if (flags & FMODE_READABLE) {
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| 410 | close(pr[0]);
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| 411 | close(pr[1]);
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| 412 | }
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| 413 | if (flags & FMODE_WRITABLE) {
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| 414 | close(pw[0]);
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| 415 | close(pw[1]);
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| 416 | }
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| 417 | errno = saved_errno;
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| 418 | mrb_sys_fail(mrb, "pipe_open failed.");
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| 419 | break;
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| 420 | }
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| 421 | return result;
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| 422 | }
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| 423 | #endif
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| 424 |
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| 425 | mrb_value
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| 426 | mrb_io_initialize(mrb_state *mrb, mrb_value io)
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| 427 | {
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| 428 | struct mrb_io *fptr;
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| 429 | mrb_int fd;
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| 430 | mrb_value mode, opt;
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| 431 | int flags;
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| 432 |
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| 433 | mode = opt = mrb_nil_value();
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| 434 |
|
---|
| 435 | mrb_get_args(mrb, "i|So", &fd, &mode, &opt);
|
---|
| 436 | if (mrb_nil_p(mode)) {
|
---|
| 437 | mode = mrb_str_new_cstr(mrb, "r");
|
---|
| 438 | }
|
---|
| 439 | if (mrb_nil_p(opt)) {
|
---|
| 440 | opt = mrb_hash_new(mrb);
|
---|
| 441 | }
|
---|
| 442 |
|
---|
| 443 | flags = mrb_io_modestr_to_flags(mrb, mrb_string_value_cstr(mrb, &mode));
|
---|
| 444 |
|
---|
| 445 | mrb_iv_set(mrb, io, mrb_intern_cstr(mrb, "@buf"), mrb_str_new_cstr(mrb, ""));
|
---|
| 446 | mrb_iv_set(mrb, io, mrb_intern_cstr(mrb, "@pos"), mrb_fixnum_value(0));
|
---|
| 447 |
|
---|
| 448 | fptr = (struct mrb_io *)DATA_PTR(io);
|
---|
| 449 | if (fptr != NULL) {
|
---|
| 450 | fptr_finalize(mrb, fptr, TRUE);
|
---|
| 451 | mrb_free(mrb, fptr);
|
---|
| 452 | }
|
---|
| 453 | fptr = mrb_io_alloc(mrb);
|
---|
| 454 |
|
---|
| 455 | DATA_TYPE(io) = &mrb_io_type;
|
---|
| 456 | DATA_PTR(io) = fptr;
|
---|
| 457 |
|
---|
| 458 | fptr->fd = fd;
|
---|
| 459 | fptr->readable = ((flags & FMODE_READABLE) != 0);
|
---|
| 460 | fptr->writable = ((flags & FMODE_WRITABLE) != 0);
|
---|
| 461 | fptr->sync = 0;
|
---|
| 462 | return io;
|
---|
| 463 | }
|
---|
| 464 |
|
---|
| 465 | static void
|
---|
| 466 | fptr_finalize(mrb_state *mrb, struct mrb_io *fptr, int quiet)
|
---|
| 467 | {
|
---|
| 468 | int saved_errno = 0;
|
---|
| 469 |
|
---|
| 470 | if (fptr == NULL) {
|
---|
| 471 | return;
|
---|
| 472 | }
|
---|
| 473 |
|
---|
| 474 | if (fptr->fd > 2) {
|
---|
| 475 | if (close(fptr->fd) == -1) {
|
---|
| 476 | saved_errno = errno;
|
---|
| 477 | }
|
---|
| 478 | fptr->fd = -1;
|
---|
| 479 | }
|
---|
| 480 |
|
---|
| 481 | if (fptr->fd2 > 2) {
|
---|
| 482 | if (close(fptr->fd2) == -1) {
|
---|
| 483 | if (saved_errno == 0) {
|
---|
| 484 | saved_errno = errno;
|
---|
| 485 | }
|
---|
| 486 | }
|
---|
| 487 | fptr->fd2 = -1;
|
---|
| 488 | }
|
---|
| 489 |
|
---|
| 490 | #if !defined(_WIN32) && !defined(_WIN64) && !defined(__NEWLIB__)
|
---|
| 491 | if (fptr->pid != 0) {
|
---|
| 492 | pid_t pid;
|
---|
| 493 | int status;
|
---|
| 494 | do {
|
---|
| 495 | pid = waitpid(fptr->pid, &status, 0);
|
---|
| 496 | } while (pid == -1 && errno == EINTR);
|
---|
| 497 | if (!quiet && pid == fptr->pid) {
|
---|
| 498 | io_set_process_status(mrb, pid, status);
|
---|
| 499 | }
|
---|
| 500 | fptr->pid = 0;
|
---|
| 501 | /* Note: we don't raise an exception when waitpid(3) fails */
|
---|
| 502 | }
|
---|
| 503 | #endif
|
---|
| 504 |
|
---|
| 505 | if (!quiet && saved_errno != 0) {
|
---|
| 506 | errno = saved_errno;
|
---|
| 507 | mrb_sys_fail(mrb, "fptr_finalize failed.");
|
---|
| 508 | }
|
---|
| 509 | }
|
---|
| 510 |
|
---|
| 511 | mrb_value
|
---|
| 512 | mrb_io_check_readable(mrb_state *mrb, mrb_value self)
|
---|
| 513 | {
|
---|
| 514 | struct mrb_io *fptr = io_get_open_fptr(mrb, self);
|
---|
| 515 | if (! fptr->readable) {
|
---|
| 516 | mrb_raise(mrb, E_IO_ERROR, "not opened for reading");
|
---|
| 517 | }
|
---|
| 518 | return mrb_nil_value();
|
---|
| 519 | }
|
---|
| 520 |
|
---|
| 521 | mrb_value
|
---|
| 522 | mrb_io_isatty(mrb_state *mrb, mrb_value self)
|
---|
| 523 | {
|
---|
| 524 | struct mrb_io *fptr;
|
---|
| 525 |
|
---|
| 526 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 527 | if (isatty(fptr->fd) == 0)
|
---|
| 528 | return mrb_false_value();
|
---|
| 529 | return mrb_true_value();
|
---|
| 530 | }
|
---|
| 531 |
|
---|
| 532 | mrb_value
|
---|
| 533 | mrb_io_s_for_fd(mrb_state *mrb, mrb_value klass)
|
---|
| 534 | {
|
---|
| 535 | struct RClass *c = mrb_class_ptr(klass);
|
---|
| 536 | enum mrb_vtype ttype = MRB_INSTANCE_TT(c);
|
---|
| 537 | mrb_value obj;
|
---|
| 538 |
|
---|
| 539 | /* copied from mrb_instance_alloc() */
|
---|
| 540 | if (ttype == 0) ttype = MRB_TT_OBJECT;
|
---|
| 541 | obj = mrb_obj_value((struct RObject*)mrb_obj_alloc(mrb, ttype, c));
|
---|
| 542 | return mrb_io_initialize(mrb, obj);
|
---|
| 543 | }
|
---|
| 544 |
|
---|
| 545 | mrb_value
|
---|
| 546 | mrb_io_s_sysclose(mrb_state *mrb, mrb_value klass)
|
---|
| 547 | {
|
---|
| 548 | mrb_int fd;
|
---|
| 549 | mrb_get_args(mrb, "i", &fd);
|
---|
| 550 | if (close(fd) == -1) {
|
---|
| 551 | mrb_sys_fail(mrb, "close");
|
---|
| 552 | }
|
---|
| 553 | return mrb_fixnum_value(0);
|
---|
| 554 | }
|
---|
| 555 |
|
---|
| 556 | int
|
---|
| 557 | mrb_cloexec_open(mrb_state *mrb, const char *pathname, mrb_int flags, mrb_int mode)
|
---|
| 558 | {
|
---|
| 559 | int fd, retry = FALSE;
|
---|
| 560 |
|
---|
| 561 | #ifdef O_CLOEXEC
|
---|
| 562 | /* O_CLOEXEC is available since Linux 2.6.23. Linux 2.6.18 silently ignore it. */
|
---|
| 563 | flags |= O_CLOEXEC;
|
---|
| 564 | #elif defined O_NOINHERIT
|
---|
| 565 | flags |= O_NOINHERIT;
|
---|
| 566 | #endif
|
---|
| 567 | reopen:
|
---|
| 568 | fd = open(pathname, flags, mode);
|
---|
| 569 | if (fd == -1) {
|
---|
| 570 | if (!retry) {
|
---|
| 571 | switch (errno) {
|
---|
| 572 | case ENFILE:
|
---|
| 573 | case EMFILE:
|
---|
| 574 | mrb_garbage_collect(mrb);
|
---|
| 575 | retry = TRUE;
|
---|
| 576 | goto reopen;
|
---|
| 577 | }
|
---|
| 578 | }
|
---|
| 579 | mrb_sys_fail(mrb, "open");
|
---|
| 580 | }
|
---|
| 581 |
|
---|
| 582 | if (fd <= 2) {
|
---|
| 583 | mrb_fd_cloexec(mrb, fd);
|
---|
| 584 | }
|
---|
| 585 | return fd;
|
---|
| 586 | }
|
---|
| 587 |
|
---|
| 588 | mrb_value
|
---|
| 589 | mrb_io_s_sysopen(mrb_state *mrb, mrb_value klass)
|
---|
| 590 | {
|
---|
| 591 | mrb_value path = mrb_nil_value();
|
---|
| 592 | mrb_value mode = mrb_nil_value();
|
---|
| 593 | mrb_int fd, flags, perm = -1;
|
---|
| 594 | const char *pat;
|
---|
| 595 | int modenum;
|
---|
| 596 |
|
---|
| 597 | mrb_get_args(mrb, "S|Si", &path, &mode, &perm);
|
---|
| 598 | if (mrb_nil_p(mode)) {
|
---|
| 599 | mode = mrb_str_new_cstr(mrb, "r");
|
---|
| 600 | }
|
---|
| 601 | if (perm < 0) {
|
---|
| 602 | perm = 0666;
|
---|
| 603 | }
|
---|
| 604 |
|
---|
| 605 | pat = mrb_string_value_cstr(mrb, &path);
|
---|
| 606 | flags = mrb_io_modestr_to_flags(mrb, mrb_string_value_cstr(mrb, &mode));
|
---|
| 607 | modenum = mrb_io_flags_to_modenum(mrb, flags);
|
---|
| 608 | fd = mrb_cloexec_open(mrb, pat, modenum, perm);
|
---|
| 609 | return mrb_fixnum_value(fd);
|
---|
| 610 | }
|
---|
| 611 |
|
---|
| 612 | mrb_value
|
---|
| 613 | mrb_io_sysread(mrb_state *mrb, mrb_value io)
|
---|
| 614 | {
|
---|
| 615 | struct mrb_io *fptr;
|
---|
| 616 | mrb_value buf = mrb_nil_value();
|
---|
| 617 | mrb_int maxlen;
|
---|
| 618 | int ret;
|
---|
| 619 |
|
---|
| 620 | mrb_get_args(mrb, "i|S", &maxlen, &buf);
|
---|
| 621 | if (maxlen < 0) {
|
---|
| 622 | return mrb_nil_value();
|
---|
| 623 | }
|
---|
| 624 |
|
---|
| 625 | if (mrb_nil_p(buf)) {
|
---|
| 626 | buf = mrb_str_new(mrb, NULL, maxlen);
|
---|
| 627 | }
|
---|
| 628 | if (RSTRING_LEN(buf) != maxlen) {
|
---|
| 629 | buf = mrb_str_resize(mrb, buf, maxlen);
|
---|
| 630 | }
|
---|
| 631 |
|
---|
| 632 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, io, &mrb_io_type);
|
---|
| 633 | ret = read(fptr->fd, RSTRING_PTR(buf), maxlen);
|
---|
| 634 | switch (ret) {
|
---|
| 635 | case 0: /* EOF */
|
---|
| 636 | if (maxlen == 0) {
|
---|
| 637 | buf = mrb_str_new_cstr(mrb, "");
|
---|
| 638 | } else {
|
---|
| 639 | mrb_raise(mrb, E_EOF_ERROR, "sysread failed: End of File");
|
---|
| 640 | }
|
---|
| 641 | break;
|
---|
| 642 | case -1: /* Error */
|
---|
| 643 | mrb_sys_fail(mrb, "sysread failed");
|
---|
| 644 | break;
|
---|
| 645 | default:
|
---|
| 646 | if (RSTRING_LEN(buf) != ret) {
|
---|
| 647 | buf = mrb_str_resize(mrb, buf, ret);
|
---|
| 648 | }
|
---|
| 649 | break;
|
---|
| 650 | }
|
---|
| 651 |
|
---|
| 652 | return buf;
|
---|
| 653 | }
|
---|
| 654 |
|
---|
| 655 | mrb_value
|
---|
| 656 | mrb_io_sysseek(mrb_state *mrb, mrb_value io)
|
---|
| 657 | {
|
---|
| 658 | struct mrb_io *fptr;
|
---|
| 659 | off_t pos;
|
---|
| 660 | mrb_int offset, whence = -1;
|
---|
| 661 |
|
---|
| 662 | mrb_get_args(mrb, "i|i", &offset, &whence);
|
---|
| 663 | if (whence < 0) {
|
---|
| 664 | whence = 0;
|
---|
| 665 | }
|
---|
| 666 |
|
---|
| 667 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, io, &mrb_io_type);
|
---|
| 668 | pos = lseek(fptr->fd, offset, whence);
|
---|
| 669 | if (pos == -1) {
|
---|
| 670 | mrb_sys_fail(mrb, "sysseek");
|
---|
| 671 | }
|
---|
| 672 | if (pos > MRB_INT_MAX) {
|
---|
| 673 | return mrb_float_value(mrb, (mrb_float)pos);
|
---|
| 674 | } else {
|
---|
| 675 | return mrb_fixnum_value(pos);
|
---|
| 676 | }
|
---|
| 677 | }
|
---|
| 678 |
|
---|
| 679 | mrb_value
|
---|
| 680 | mrb_io_syswrite(mrb_state *mrb, mrb_value io)
|
---|
| 681 | {
|
---|
| 682 | struct mrb_io *fptr;
|
---|
| 683 | mrb_value str, buf;
|
---|
| 684 | int fd, length;
|
---|
| 685 |
|
---|
| 686 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, io, &mrb_io_type);
|
---|
| 687 | if (! fptr->writable) {
|
---|
| 688 | mrb_raise(mrb, E_IO_ERROR, "not opened for writing");
|
---|
| 689 | }
|
---|
| 690 |
|
---|
| 691 | mrb_get_args(mrb, "S", &str);
|
---|
| 692 | if (mrb_type(str) != MRB_TT_STRING) {
|
---|
| 693 | buf = mrb_funcall(mrb, str, "to_s", 0);
|
---|
| 694 | } else {
|
---|
| 695 | buf = str;
|
---|
| 696 | }
|
---|
| 697 |
|
---|
| 698 | if (fptr->fd2 == -1) {
|
---|
| 699 | fd = fptr->fd;
|
---|
| 700 | } else {
|
---|
| 701 | fd = fptr->fd2;
|
---|
| 702 | }
|
---|
| 703 | length = write(fd, RSTRING_PTR(buf), RSTRING_LEN(buf));
|
---|
| 704 |
|
---|
| 705 | return mrb_fixnum_value(length);
|
---|
| 706 | }
|
---|
| 707 |
|
---|
| 708 | mrb_value
|
---|
| 709 | mrb_io_close(mrb_state *mrb, mrb_value self)
|
---|
| 710 | {
|
---|
| 711 | struct mrb_io *fptr;
|
---|
| 712 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 713 | fptr_finalize(mrb, fptr, FALSE);
|
---|
| 714 | return mrb_nil_value();
|
---|
| 715 | }
|
---|
| 716 |
|
---|
| 717 | mrb_value
|
---|
| 718 | mrb_io_closed(mrb_state *mrb, mrb_value io)
|
---|
| 719 | {
|
---|
| 720 | struct mrb_io *fptr;
|
---|
| 721 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, io, &mrb_io_type);
|
---|
| 722 | if (fptr->fd >= 0) {
|
---|
| 723 | return mrb_false_value();
|
---|
| 724 | }
|
---|
| 725 |
|
---|
| 726 | return mrb_true_value();
|
---|
| 727 | }
|
---|
| 728 |
|
---|
| 729 | mrb_value
|
---|
| 730 | mrb_io_pid(mrb_state *mrb, mrb_value io)
|
---|
| 731 | {
|
---|
| 732 | struct mrb_io *fptr;
|
---|
| 733 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, io, &mrb_io_type);
|
---|
| 734 |
|
---|
| 735 | if (fptr->pid > 0) {
|
---|
| 736 | return mrb_fixnum_value(fptr->pid);
|
---|
| 737 | }
|
---|
| 738 |
|
---|
| 739 | return mrb_nil_value();
|
---|
| 740 | }
|
---|
| 741 |
|
---|
| 742 | static struct timeval
|
---|
| 743 | time2timeval(mrb_state *mrb, mrb_value time)
|
---|
| 744 | {
|
---|
| 745 | struct timeval t = { 0, 0 };
|
---|
| 746 |
|
---|
| 747 | switch (mrb_type(time)) {
|
---|
| 748 | case MRB_TT_FIXNUM:
|
---|
| 749 | t.tv_sec = mrb_fixnum(time);
|
---|
| 750 | t.tv_usec = 0;
|
---|
| 751 | break;
|
---|
| 752 |
|
---|
| 753 | case MRB_TT_FLOAT:
|
---|
| 754 | t.tv_sec = mrb_float(time);
|
---|
| 755 | t.tv_usec = (mrb_float(time) - t.tv_sec) * 1000000.0;
|
---|
| 756 | break;
|
---|
| 757 |
|
---|
| 758 | default:
|
---|
| 759 | mrb_raise(mrb, E_TYPE_ERROR, "wrong argument class");
|
---|
| 760 | }
|
---|
| 761 |
|
---|
| 762 | return t;
|
---|
| 763 | }
|
---|
| 764 |
|
---|
| 765 | static int
|
---|
| 766 | mrb_io_read_data_pending(mrb_state *mrb, mrb_value io)
|
---|
| 767 | {
|
---|
| 768 | mrb_value buf = mrb_iv_get(mrb, io, mrb_intern_cstr(mrb, "@buf"));
|
---|
| 769 | if (mrb_type(buf) == MRB_TT_STRING && RSTRING_LEN(buf) > 0) {
|
---|
| 770 | return 1;
|
---|
| 771 | }
|
---|
| 772 | return 0;
|
---|
| 773 | }
|
---|
| 774 |
|
---|
| 775 | #if !defined(_WIN32) && !defined(_WIN64) && !defined(__NEWLIB__)
|
---|
| 776 | static mrb_value
|
---|
| 777 | mrb_io_s_pipe(mrb_state *mrb, mrb_value klass)
|
---|
| 778 | {
|
---|
| 779 | mrb_value r = mrb_nil_value();
|
---|
| 780 | mrb_value w = mrb_nil_value();
|
---|
| 781 | struct mrb_io *fptr_r;
|
---|
| 782 | struct mrb_io *fptr_w;
|
---|
| 783 | int pipes[2];
|
---|
| 784 |
|
---|
| 785 | if (mrb_pipe(mrb, pipes) == -1) {
|
---|
| 786 | mrb_sys_fail(mrb, "pipe");
|
---|
| 787 | }
|
---|
| 788 |
|
---|
| 789 | r = mrb_obj_value(mrb_data_object_alloc(mrb, mrb_class_ptr(klass), NULL, &mrb_io_type));
|
---|
| 790 | mrb_iv_set(mrb, r, mrb_intern_cstr(mrb, "@buf"), mrb_str_new_cstr(mrb, ""));
|
---|
| 791 | mrb_iv_set(mrb, r, mrb_intern_cstr(mrb, "@pos"), mrb_fixnum_value(0));
|
---|
| 792 | fptr_r = mrb_io_alloc(mrb);
|
---|
| 793 | fptr_r->fd = pipes[0];
|
---|
| 794 | fptr_r->readable = 1;
|
---|
| 795 | fptr_r->writable = 0;
|
---|
| 796 | fptr_r->sync = 0;
|
---|
| 797 | DATA_TYPE(r) = &mrb_io_type;
|
---|
| 798 | DATA_PTR(r) = fptr_r;
|
---|
| 799 |
|
---|
| 800 | w = mrb_obj_value(mrb_data_object_alloc(mrb, mrb_class_ptr(klass), NULL, &mrb_io_type));
|
---|
| 801 | mrb_iv_set(mrb, w, mrb_intern_cstr(mrb, "@buf"), mrb_str_new_cstr(mrb, ""));
|
---|
| 802 | mrb_iv_set(mrb, w, mrb_intern_cstr(mrb, "@pos"), mrb_fixnum_value(0));
|
---|
| 803 | fptr_w = mrb_io_alloc(mrb);
|
---|
| 804 | fptr_w->fd = pipes[1];
|
---|
| 805 | fptr_w->readable = 0;
|
---|
| 806 | fptr_w->writable = 1;
|
---|
| 807 | fptr_w->sync = 1;
|
---|
| 808 | DATA_TYPE(w) = &mrb_io_type;
|
---|
| 809 | DATA_PTR(w) = fptr_w;
|
---|
| 810 |
|
---|
| 811 | return mrb_assoc_new(mrb, r, w);
|
---|
| 812 | }
|
---|
| 813 | #endif
|
---|
| 814 |
|
---|
| 815 | static mrb_value
|
---|
| 816 | mrb_io_s_select(mrb_state *mrb, mrb_value klass)
|
---|
| 817 | {
|
---|
| 818 | mrb_value *argv;
|
---|
| 819 | mrb_int argc;
|
---|
| 820 | mrb_value read, read_io, write, except, timeout, list;
|
---|
| 821 | struct timeval *tp, timerec;
|
---|
| 822 | fd_set pset, rset, wset, eset;
|
---|
| 823 | fd_set *rp, *wp, *ep;
|
---|
| 824 | struct mrb_io *fptr;
|
---|
| 825 | int pending = 0;
|
---|
| 826 | mrb_value result;
|
---|
| 827 | int max = 0;
|
---|
| 828 | int interrupt_flag = 0;
|
---|
| 829 | int i, n;
|
---|
| 830 |
|
---|
| 831 | mrb_get_args(mrb, "*", &argv, &argc);
|
---|
| 832 |
|
---|
| 833 | if (argc < 1 || argc > 4) {
|
---|
| 834 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "wrong number of arguments (%S for 1..4)", mrb_fixnum_value(argc));
|
---|
| 835 | }
|
---|
| 836 |
|
---|
| 837 | timeout = mrb_nil_value();
|
---|
| 838 | except = mrb_nil_value();
|
---|
| 839 | write = mrb_nil_value();
|
---|
| 840 | if (argc > 3)
|
---|
| 841 | timeout = argv[3];
|
---|
| 842 | if (argc > 2)
|
---|
| 843 | except = argv[2];
|
---|
| 844 | if (argc > 1)
|
---|
| 845 | write = argv[1];
|
---|
| 846 | read = argv[0];
|
---|
| 847 |
|
---|
| 848 | if (mrb_nil_p(timeout)) {
|
---|
| 849 | tp = NULL;
|
---|
| 850 | } else {
|
---|
| 851 | timerec = time2timeval(mrb, timeout);
|
---|
| 852 | tp = &timerec;
|
---|
| 853 | }
|
---|
| 854 |
|
---|
| 855 | FD_ZERO(&pset);
|
---|
| 856 | if (!mrb_nil_p(read)) {
|
---|
| 857 | mrb_check_type(mrb, read, MRB_TT_ARRAY);
|
---|
| 858 | rp = &rset;
|
---|
| 859 | FD_ZERO(rp);
|
---|
| 860 | for (i = 0; i < RARRAY_LEN(read); i++) {
|
---|
| 861 | read_io = RARRAY_PTR(read)[i];
|
---|
| 862 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, read_io, &mrb_io_type);
|
---|
| 863 | FD_SET(fptr->fd, rp);
|
---|
| 864 | if (mrb_io_read_data_pending(mrb, read_io)) {
|
---|
| 865 | pending++;
|
---|
| 866 | FD_SET(fptr->fd, &pset);
|
---|
| 867 | }
|
---|
| 868 | if (max < fptr->fd)
|
---|
| 869 | max = fptr->fd;
|
---|
| 870 | }
|
---|
| 871 | if (pending) {
|
---|
| 872 | timerec.tv_sec = timerec.tv_usec = 0;
|
---|
| 873 | tp = &timerec;
|
---|
| 874 | }
|
---|
| 875 | } else {
|
---|
| 876 | rp = NULL;
|
---|
| 877 | }
|
---|
| 878 |
|
---|
| 879 | if (!mrb_nil_p(write)) {
|
---|
| 880 | mrb_check_type(mrb, write, MRB_TT_ARRAY);
|
---|
| 881 | wp = &wset;
|
---|
| 882 | FD_ZERO(wp);
|
---|
| 883 | for (i = 0; i < RARRAY_LEN(write); i++) {
|
---|
| 884 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, RARRAY_PTR(write)[i], &mrb_io_type);
|
---|
| 885 | FD_SET(fptr->fd, wp);
|
---|
| 886 | if (max < fptr->fd)
|
---|
| 887 | max = fptr->fd;
|
---|
| 888 | if (fptr->fd2 >= 0) {
|
---|
| 889 | FD_SET(fptr->fd2, wp);
|
---|
| 890 | if (max < fptr->fd2)
|
---|
| 891 | max = fptr->fd2;
|
---|
| 892 | }
|
---|
| 893 | }
|
---|
| 894 | } else {
|
---|
| 895 | wp = NULL;
|
---|
| 896 | }
|
---|
| 897 |
|
---|
| 898 | if (!mrb_nil_p(except)) {
|
---|
| 899 | mrb_check_type(mrb, except, MRB_TT_ARRAY);
|
---|
| 900 | ep = &eset;
|
---|
| 901 | FD_ZERO(ep);
|
---|
| 902 | for (i = 0; i < RARRAY_LEN(except); i++) {
|
---|
| 903 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, RARRAY_PTR(except)[i], &mrb_io_type);
|
---|
| 904 | FD_SET(fptr->fd, ep);
|
---|
| 905 | if (max < fptr->fd)
|
---|
| 906 | max = fptr->fd;
|
---|
| 907 | if (fptr->fd2 >= 0) {
|
---|
| 908 | FD_SET(fptr->fd2, ep);
|
---|
| 909 | if (max < fptr->fd2)
|
---|
| 910 | max = fptr->fd2;
|
---|
| 911 | }
|
---|
| 912 | }
|
---|
| 913 | } else {
|
---|
| 914 | ep = NULL;
|
---|
| 915 | }
|
---|
| 916 |
|
---|
| 917 | max++;
|
---|
| 918 |
|
---|
| 919 | retry:
|
---|
| 920 | n = select(max, rp, wp, ep, tp);
|
---|
| 921 | if (n < 0) {
|
---|
| 922 | if (errno != EINTR)
|
---|
| 923 | mrb_sys_fail(mrb, "select failed");
|
---|
| 924 | if (tp == NULL)
|
---|
| 925 | goto retry;
|
---|
| 926 | interrupt_flag = 1;
|
---|
| 927 | }
|
---|
| 928 |
|
---|
| 929 | if (!pending && n == 0)
|
---|
| 930 | return mrb_nil_value();
|
---|
| 931 |
|
---|
| 932 | result = mrb_ary_new_capa(mrb, 3);
|
---|
| 933 | mrb_ary_push(mrb, result, rp? mrb_ary_new(mrb) : mrb_ary_new_capa(mrb, 0));
|
---|
| 934 | mrb_ary_push(mrb, result, wp? mrb_ary_new(mrb) : mrb_ary_new_capa(mrb, 0));
|
---|
| 935 | mrb_ary_push(mrb, result, ep? mrb_ary_new(mrb) : mrb_ary_new_capa(mrb, 0));
|
---|
| 936 |
|
---|
| 937 | if (interrupt_flag == 0) {
|
---|
| 938 | if (rp) {
|
---|
| 939 | list = RARRAY_PTR(result)[0];
|
---|
| 940 | for (i = 0; i < RARRAY_LEN(read); i++) {
|
---|
| 941 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, RARRAY_PTR(read)[i], &mrb_io_type);
|
---|
| 942 | if (FD_ISSET(fptr->fd, rp) ||
|
---|
| 943 | FD_ISSET(fptr->fd, &pset)) {
|
---|
| 944 | mrb_ary_push(mrb, list, RARRAY_PTR(read)[i]);
|
---|
| 945 | }
|
---|
| 946 | }
|
---|
| 947 | }
|
---|
| 948 |
|
---|
| 949 | if (wp) {
|
---|
| 950 | list = RARRAY_PTR(result)[1];
|
---|
| 951 | for (i = 0; i < RARRAY_LEN(write); i++) {
|
---|
| 952 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, RARRAY_PTR(write)[i], &mrb_io_type);
|
---|
| 953 | if (FD_ISSET(fptr->fd, wp)) {
|
---|
| 954 | mrb_ary_push(mrb, list, RARRAY_PTR(write)[i]);
|
---|
| 955 | } else if (fptr->fd2 >= 0 && FD_ISSET(fptr->fd2, wp)) {
|
---|
| 956 | mrb_ary_push(mrb, list, RARRAY_PTR(write)[i]);
|
---|
| 957 | }
|
---|
| 958 | }
|
---|
| 959 | }
|
---|
| 960 |
|
---|
| 961 | if (ep) {
|
---|
| 962 | list = RARRAY_PTR(result)[2];
|
---|
| 963 | for (i = 0; i < RARRAY_LEN(except); i++) {
|
---|
| 964 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, RARRAY_PTR(except)[i], &mrb_io_type);
|
---|
| 965 | if (FD_ISSET(fptr->fd, ep)) {
|
---|
| 966 | mrb_ary_push(mrb, list, RARRAY_PTR(except)[i]);
|
---|
| 967 | } else if (fptr->fd2 >= 0 && FD_ISSET(fptr->fd2, ep)) {
|
---|
| 968 | mrb_ary_push(mrb, list, RARRAY_PTR(except)[i]);
|
---|
| 969 | }
|
---|
| 970 | }
|
---|
| 971 | }
|
---|
| 972 | }
|
---|
| 973 |
|
---|
| 974 | return result;
|
---|
| 975 | }
|
---|
| 976 |
|
---|
| 977 | mrb_value
|
---|
| 978 | mrb_io_fileno(mrb_state *mrb, mrb_value io)
|
---|
| 979 | {
|
---|
| 980 | struct mrb_io *fptr;
|
---|
| 981 | fptr = (struct mrb_io *)mrb_get_datatype(mrb, io, &mrb_io_type);
|
---|
| 982 | return mrb_fixnum_value(fptr->fd);
|
---|
| 983 | }
|
---|
| 984 |
|
---|
| 985 | mrb_value
|
---|
| 986 | mrb_io_close_on_exec_p(mrb_state *mrb, mrb_value self)
|
---|
| 987 | {
|
---|
| 988 | #if defined(F_GETFD) && defined(F_SETFD) && defined(FD_CLOEXEC)
|
---|
| 989 | struct mrb_io *fptr;
|
---|
| 990 | int ret;
|
---|
| 991 |
|
---|
| 992 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 993 |
|
---|
| 994 | if (fptr->fd2 >= 0) {
|
---|
| 995 | if ((ret = fcntl(fptr->fd2, F_GETFD)) == -1) mrb_sys_fail(mrb, "F_GETFD failed");
|
---|
| 996 | if (!(ret & FD_CLOEXEC)) return mrb_false_value();
|
---|
| 997 | }
|
---|
| 998 |
|
---|
| 999 | if ((ret = fcntl(fptr->fd, F_GETFD)) == -1) mrb_sys_fail(mrb, "F_GETFD failed");
|
---|
| 1000 | if (!(ret & FD_CLOEXEC)) return mrb_false_value();
|
---|
| 1001 | return mrb_true_value();
|
---|
| 1002 |
|
---|
| 1003 | #else
|
---|
| 1004 | mrb_raise(mrb, E_NOTIMP_ERROR, "IO#close_on_exec? is not supported on the platform");
|
---|
| 1005 | return mrb_false_value();
|
---|
| 1006 | #endif
|
---|
| 1007 | }
|
---|
| 1008 |
|
---|
| 1009 | mrb_value
|
---|
| 1010 | mrb_io_set_close_on_exec(mrb_state *mrb, mrb_value self)
|
---|
| 1011 | {
|
---|
| 1012 | #if defined(F_GETFD) && defined(F_SETFD) && defined(FD_CLOEXEC)
|
---|
| 1013 | struct mrb_io *fptr;
|
---|
| 1014 | int flag, ret;
|
---|
| 1015 | mrb_bool b;
|
---|
| 1016 |
|
---|
| 1017 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 1018 | mrb_get_args(mrb, "b", &b);
|
---|
| 1019 | flag = b ? FD_CLOEXEC : 0;
|
---|
| 1020 |
|
---|
| 1021 | if (fptr->fd2 >= 0) {
|
---|
| 1022 | if ((ret = fcntl(fptr->fd2, F_GETFD)) == -1) mrb_sys_fail(mrb, "F_GETFD failed");
|
---|
| 1023 | if ((ret & FD_CLOEXEC) != flag) {
|
---|
| 1024 | ret = (ret & ~FD_CLOEXEC) | flag;
|
---|
| 1025 | ret = fcntl(fptr->fd2, F_SETFD, ret);
|
---|
| 1026 |
|
---|
| 1027 | if (ret == -1) mrb_sys_fail(mrb, "F_SETFD failed");
|
---|
| 1028 | }
|
---|
| 1029 | }
|
---|
| 1030 |
|
---|
| 1031 | if ((ret = fcntl(fptr->fd, F_GETFD)) == -1) mrb_sys_fail(mrb, "F_GETFD failed");
|
---|
| 1032 | if ((ret & FD_CLOEXEC) != flag) {
|
---|
| 1033 | ret = (ret & ~FD_CLOEXEC) | flag;
|
---|
| 1034 | ret = fcntl(fptr->fd, F_SETFD, ret);
|
---|
| 1035 | if (ret == -1) mrb_sys_fail(mrb, "F_SETFD failed");
|
---|
| 1036 | }
|
---|
| 1037 |
|
---|
| 1038 | return mrb_bool_value(b);
|
---|
| 1039 | #else
|
---|
| 1040 | mrb_raise(mrb, E_NOTIMP_ERROR, "IO#close_on_exec= is not supported on the platform");
|
---|
| 1041 | return mrb_nil_value();
|
---|
| 1042 | #endif
|
---|
| 1043 | }
|
---|
| 1044 |
|
---|
| 1045 | mrb_value
|
---|
| 1046 | mrb_io_set_sync(mrb_state *mrb, mrb_value self)
|
---|
| 1047 | {
|
---|
| 1048 | struct mrb_io *fptr;
|
---|
| 1049 | mrb_bool b;
|
---|
| 1050 |
|
---|
| 1051 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 1052 | mrb_get_args(mrb, "b", &b);
|
---|
| 1053 | fptr->sync = b;
|
---|
| 1054 | return mrb_bool_value(b);
|
---|
| 1055 | }
|
---|
| 1056 |
|
---|
| 1057 | mrb_value
|
---|
| 1058 | mrb_io_sync(mrb_state *mrb, mrb_value self)
|
---|
| 1059 | {
|
---|
| 1060 | struct mrb_io *fptr;
|
---|
| 1061 | fptr = io_get_open_fptr(mrb, self);
|
---|
| 1062 | return mrb_bool_value(fptr->sync);
|
---|
| 1063 | }
|
---|
| 1064 |
|
---|
| 1065 | void
|
---|
| 1066 | mrb_init_io(mrb_state *mrb)
|
---|
| 1067 | {
|
---|
| 1068 | struct RClass *io;
|
---|
| 1069 |
|
---|
| 1070 | io = mrb_define_class(mrb, "IO", mrb->object_class);
|
---|
| 1071 | MRB_SET_INSTANCE_TT(io, MRB_TT_DATA);
|
---|
| 1072 |
|
---|
| 1073 | mrb_include_module(mrb, io, mrb_module_get(mrb, "Enumerable")); /* 15.2.20.3 */
|
---|
| 1074 | #if !defined(_WIN32) && !defined(_WIN64) && !defined(__NEWLIB__)
|
---|
| 1075 | mrb_define_class_method(mrb, io, "_popen", mrb_io_s_popen, MRB_ARGS_ANY());
|
---|
| 1076 | mrb_define_class_method(mrb, io, "_sysclose", mrb_io_s_sysclose, MRB_ARGS_REQ(1));
|
---|
| 1077 | #endif
|
---|
| 1078 | mrb_define_class_method(mrb, io, "for_fd", mrb_io_s_for_fd, MRB_ARGS_ANY());
|
---|
| 1079 | mrb_define_class_method(mrb, io, "select", mrb_io_s_select, MRB_ARGS_ANY());
|
---|
| 1080 | mrb_define_class_method(mrb, io, "sysopen", mrb_io_s_sysopen, MRB_ARGS_ANY());
|
---|
| 1081 | #if !defined(_WIN32) && !defined(_WIN64) && !defined(__NEWLIB__)
|
---|
| 1082 | mrb_define_class_method(mrb, io, "_pipe", mrb_io_s_pipe, MRB_ARGS_NONE());
|
---|
| 1083 | #endif
|
---|
| 1084 |
|
---|
| 1085 | mrb_define_method(mrb, io, "initialize", mrb_io_initialize, MRB_ARGS_ANY()); /* 15.2.20.5.21 (x)*/
|
---|
| 1086 | mrb_define_method(mrb, io, "_check_readable", mrb_io_check_readable, MRB_ARGS_NONE());
|
---|
| 1087 | mrb_define_method(mrb, io, "isatty", mrb_io_isatty, MRB_ARGS_NONE());
|
---|
| 1088 | mrb_define_method(mrb, io, "sync", mrb_io_sync, MRB_ARGS_NONE());
|
---|
| 1089 | mrb_define_method(mrb, io, "sync=", mrb_io_set_sync, MRB_ARGS_REQ(1));
|
---|
| 1090 | mrb_define_method(mrb, io, "sysread", mrb_io_sysread, MRB_ARGS_ANY());
|
---|
| 1091 | mrb_define_method(mrb, io, "sysseek", mrb_io_sysseek, MRB_ARGS_REQ(1));
|
---|
| 1092 | mrb_define_method(mrb, io, "syswrite", mrb_io_syswrite, MRB_ARGS_REQ(1));
|
---|
| 1093 | mrb_define_method(mrb, io, "close", mrb_io_close, MRB_ARGS_NONE()); /* 15.2.20.5.1 */
|
---|
| 1094 | mrb_define_method(mrb, io, "close_on_exec=", mrb_io_set_close_on_exec, MRB_ARGS_REQ(1));
|
---|
| 1095 | mrb_define_method(mrb, io, "close_on_exec?", mrb_io_close_on_exec_p, MRB_ARGS_NONE());
|
---|
| 1096 | mrb_define_method(mrb, io, "closed?", mrb_io_closed, MRB_ARGS_NONE()); /* 15.2.20.5.2 */
|
---|
| 1097 | mrb_define_method(mrb, io, "pid", mrb_io_pid, MRB_ARGS_NONE()); /* 15.2.20.5.2 */
|
---|
| 1098 | mrb_define_method(mrb, io, "fileno", mrb_io_fileno, MRB_ARGS_NONE());
|
---|
| 1099 |
|
---|
| 1100 |
|
---|
| 1101 | mrb_gv_set(mrb, mrb_intern_cstr(mrb, "$/"), mrb_str_new_cstr(mrb, "\n"));
|
---|
| 1102 | }
|
---|