0ab862abfa
This file is included by both libc and hostcompat. 2) Changed printf -> tprintf in all testbin programs
167 lines
3.3 KiB
C
167 lines
3.3 KiB
C
/*
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* Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
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* The President and Fellows of Harvard College.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "extern.h"
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static
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void
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randchar(char *c)
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{
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#if RAND_MAX != 0x7fffffff
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#error "This code assumes RAND_MAX is 0x7fffffff"
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#endif
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static long lbits = 0;
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static long lnum = 0;
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long bit;
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int ct = 0;
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*c = 0;
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while (ct < CHAR_BIT) {
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if (lnum==0) {
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lbits = random();
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lnum = 31;
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}
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bit = lbits & 1;
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if (bit) {
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(*c) |= 1;
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}
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(*c) <<= 1;
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ct++;
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lbits >>= 1;
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lnum--;
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}
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}
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static
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void
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fillrand(void *p, size_t len)
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{
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size_t i;
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char *cp = p;
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for (i=0; i<len; i++) {
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randchar(&cp[i]);
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}
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}
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void *
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randptr(void)
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{
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void *x;
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fillrand(&x, sizeof(x));
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return x;
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}
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int
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randint(void)
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{
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int x;
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fillrand(&x, sizeof(x));
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return x;
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}
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off_t
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randoff(void)
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{
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off_t x;
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fillrand(&x, sizeof(x));
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return x;
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}
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size_t
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randsize(void)
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{
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size_t x;
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fillrand(&x, sizeof(x));
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return x;
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}
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static
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void
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usage(void)
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{
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tprintf("Usage: randcall [-f] [-c count] [-r seed] 2|3|4|all\n");
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tprintf(" -f suppress forking\n");
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tprintf(" -c set iteration count (default 100)\n");
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tprintf(" -r set pseudorandom seed (default 0)\n");
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exit(1);
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}
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int
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main(int argc, char *argv[])
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{
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int count=100, seed = 0, dofork = 1;
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int an, i;
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for (i=1; i<argc; i++) {
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if (!strcmp(argv[i], "-f")) {
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dofork = 0;
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}
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else if (!strcmp(argv[i], "-c") && i<argc-1) {
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count = atoi(argv[++i]);
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}
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else if (!strcmp(argv[i], "-r") && i<argc-1) {
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seed = atoi(argv[++i]);
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}
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else if (argv[i][0] == '-') {
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usage();
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}
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else {
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break;
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}
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}
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if (i != argc-1) {
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usage();
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}
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if (!strcmp(argv[i], "all")) {
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an = 5;
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}
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else {
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an = atoi(argv[i]);
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if (an <2 || an > 4) {
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usage();
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}
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}
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tprintf("Seed: %d Count: %d\n", seed, count);
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srandom(seed);
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trycalls(an, dofork, count);
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return 0;
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}
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