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Fix out-of-bound access #6

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Fix out-of-bound access #6

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4 changes: 2 additions & 2 deletions ext/mkfifo.c
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Original file line number Diff line number Diff line change
Expand Up @@ -26,9 +26,9 @@ rb_cFile_mkfifo(int argc, VALUE *argv, VALUE self) {
mode_t perm = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP;

#ifdef rb_check_arity
rb_check_arity(argc, 1, 2);
argc = rb_check_arity(argc, 1, 2);
name = argv[0];
mode = argv[1];
mode = argc > 1 ? argv[1] : Qnil;
#else
rb_scan_args(argc, argv, "11", &name, &mode);
#endif
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