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Pledge that arithmetic only takes "stdio".
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@ -1,4 +1,4 @@
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/* $OpenBSD: arithmetic.c,v 1.19 2015/08/22 14:47:41 deraadt Exp $ */
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/* $OpenBSD: arithmetic.c,v 1.20 2015/10/10 22:32:55 doug Exp $ */
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/*
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* Copyright (c) 1989, 1993
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@ -101,6 +101,9 @@ main(int argc, char *argv[])
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extern int optind;
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int ch, cnt;
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if (pledge("stdio", NULL) == -1)
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err(1, "pledge");
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while ((ch = getopt(argc, argv, "hr:o:")) != -1)
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switch(ch) {
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case 'o': {
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