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140 lines
2.3 KiB
140 lines
2.3 KiB
/* test 10 */
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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char *name[] = {"t10a", "t10b", "t10c", "t10d", "t10e", "t10f", "t10g",
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"t10h", "t10i", "t10j"};
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#define PROGBUF_LONGS 3000
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long prog[PROGBUF_LONGS];
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int psize;
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int max_error = 2;
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#include "common.h"
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int main(void);
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void spawn(int n);
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void mkfiles(void);
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void cr_file(char *name, int size);
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void rmfiles(void);
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void quit(void);
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int main()
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{
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int i, n, pid, r;
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start(10);
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system("cp ../t10a .");
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pid = getpid();
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/* Create files t10b ... t10h */
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mkfiles();
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if (getpid() == pid)
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if (fork() == 0) {
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execl("t10a", "t10a", (char *) 0);
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exit(0);
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}
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if (getpid() == pid)
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if (fork() == 0) {
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execl("t10b", "t10b", (char *) 0);
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exit(0);
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}
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if (getpid() == pid)
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if (fork() == 0) {
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execl("t10c", "t10c", (char *) 0);
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exit(0);
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}
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if (getpid() == pid)
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if (fork() == 0) {
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execl("t10d", "t10d", (char *) 0);
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exit(0);
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}
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srand(100);
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for (i = 0; i < 60; i++) {
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r = rand() & 07;
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spawn(r);
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}
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for (i = 0; i < 4; i++) wait(&n);
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rmfiles();
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quit();
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return(-1); /* impossible */
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}
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void spawn(n)
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int n;
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{
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int pid;
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if ((pid = fork()) != 0) {
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wait(&n); /* wait for some child (any one) */
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} else {
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/* a successful exec or a successful detection of a broken executable
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* is ok
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*/
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if(execl(name[n], name[n], (char *) 0) < 0 && errno == ENOEXEC)
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exit(0);
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errct++;
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printf("Child execl didn't take. file=%s errno=%d\n", name[n], errno);
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rmfiles();
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exit(1);
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printf("Worse yet, EXIT didn't exit\n");
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}
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}
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void mkfiles()
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{
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int fd;
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fd = open("t10a", 0);
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if (fd < 0) {
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printf("Can't open t10a\n");
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exit(1);
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}
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psize = read(fd, (char *) prog, PROGBUF_LONGS * 4);
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cr_file("t10b", 1600);
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cr_file("t10c", 1400);
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cr_file("t10d", 2300);
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cr_file("t10e", 3100);
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cr_file("t10f", 2400);
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cr_file("t10g", 1700);
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cr_file("t10h", 1500);
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cr_file("t10i", 4000);
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cr_file("t10j", 2250);
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close(fd);
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}
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void cr_file(name, size)
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char *name;
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int size;
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{
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int fd;
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size += 3000;
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fd = creat(name, 0755);
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write(fd, (char *) prog, psize);
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close(fd);
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}
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void rmfiles()
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{
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unlink("t10b");
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unlink("t10c");
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unlink("t10d");
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unlink("t10e");
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unlink("t10f");
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unlink("t10g");
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unlink("t10h");
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unlink("t10i");
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unlink("t10j");
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}
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