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use lstat(2) to check if it's a symlink

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This commit is contained in:
Tomoyuki Sahara
2013-08-08 13:58:47 +09:00
parent 4f3a749da1
commit c49541058c
1 changed files with 19 additions and 3 deletions
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src/file_test.c
+19 -3
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@@ -21,7 +21,7 @@
extern struct mrb_data_type mrb_io_type;
static int
mrb_stat(mrb_state *mrb, mrb_value obj, struct stat *st)
mrb_stat0(mrb_state *mrb, mrb_value obj, struct stat *st, int do_lstat)
{
mrb_value tmp;
mrb_value io_klass, str_klass;
@@ -44,12 +44,28 @@ mrb_stat(mrb_state *mrb, mrb_value obj, struct stat *st)
tmp = mrb_funcall(mrb, obj, "is_a?", 1, str_klass);
if (mrb_test(tmp)) {
return stat(mrb_string_value_cstr(mrb, &obj), st);
if (do_lstat) {
return lstat(mrb_str_to_cstr(mrb, obj), st);
} else {
return stat(mrb_str_to_cstr(mrb, obj), st);
}
}
return -1;
}
static int
mrb_stat(mrb_state *mrb, mrb_value obj, struct stat *st)
{
return mrb_stat0(mrb, obj, st, 0);
}
static int
mrb_lstat(mrb_state *mrb, mrb_value obj, struct stat *st)
{
return mrb_stat0(mrb, obj, st, 1);
}
/*
* Document-method: directory?
*
@@ -142,7 +158,7 @@ mrb_filetest_s_symlink_p(mrb_state *mrb, mrb_value klass)
mrb_get_args(mrb, "o", &obj);
if (mrb_stat(mrb, obj, &st) < 0)
if (mrb_lstat(mrb, obj, &st) == -1)
return mrb_false_value();
if (S_ISLNK(st.st_mode))
return mrb_true_value();