2 * Copyright (c) 2008 John Birrell (jb@freebsd.org)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/ptrace.h>
37 proc_clearflags(struct proc_handle *phdl, int mask)
48 proc_continue(struct proc_handle *phdl)
53 if (ptrace(PT_CONTINUE, phdl->pid, (caddr_t)(uintptr_t) 1, 0) != 0)
56 phdl->status = PS_RUN;
62 proc_detach(struct proc_handle *phdl)
67 if (ptrace(PT_DETACH, phdl->pid, 0, 0) != 0)
74 proc_getflags(struct proc_handle *phdl)
83 proc_setflags(struct proc_handle *phdl, int mask)
94 proc_state(struct proc_handle *phdl)
99 return (phdl->status);
103 proc_wait(struct proc_handle *phdl)
111 if (kevent(phdl->kq, NULL, 0, &kev, 1, NULL) <= 0)
114 switch (kev.filter) {
115 /* Child has exited */
116 case EVFILT_PROC: /* target has exited */
117 phdl->status = PS_UNDEAD;
127 proc_getpid(struct proc_handle *phdl)