35 lines
749 B
C
35 lines
749 B
C
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/* Executes itself recursively to the depth indicated by the
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first command-line argument. */
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#include <debug.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <syscall.h>
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#include "tests/lib.h"
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const char *test_name = "multi-recurse";
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int
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main (int argc UNUSED, char *argv[])
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{
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int n = atoi (argv[1]);
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msg ("begin %d", n);
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if (n != 0)
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{
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char child_cmd[128];
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pid_t child_pid;
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int code;
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snprintf (child_cmd, sizeof child_cmd, "multi-recurse %d", n - 1);
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CHECK ((child_pid = exec (child_cmd)) != -1, "exec(\"%s\")", child_cmd);
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code = wait (child_pid);
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if (code != n - 1)
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fail ("wait(exec(\"%s\")) returned %d", child_cmd, code);
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}
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msg ("end %d", n);
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return n;
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}
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