static int
svc_connect(void* handle, int fd, Cs_id_t* id, int clone, char** argv)
{
Proc_t* p;
int n;
long ops[4];
static char* args[] = { "sh", "-i", 0 };
NoP(handle);
NoP(clone);
waitpid(-1, NiL, WNOHANG);
n = 0;
ops[n++] = PROC_FD_DUP(fd, 0, 0);
ops[n++] = PROC_FD_DUP(fd, 1, 0);
ops[n++] = PROC_FD_DUP(fd, 2, PROC_FD_CHILD);
ops[n] = 0;
if (!(p = procopen(NiL, args, NiL, ops, 0)))
return(-1);
procfree(p);
csfd(fd, CS_POLL_CLOSE);
return(0);
}
void
systrace(const char* id)
{
register int n;
register char* out;
char* s;
char buf[PATH_MAX];
char* av[7];
long ov[2];
static char* trace[] = { "trace", "truss", "strace", "traces" };
if (!(s = getenv("HOME")))
return;
if (!id && !(id = (const char*)error_info.id))
id = (const char*)trace[0];
out = buf;
out += sfsprintf(out, sizeof(buf), "%s/.%s/%s", s, trace[0], id);
if (access(buf, F_OK))
return;
av[1] = trace[0];
av[2] = "-o";
av[3] = buf;
av[4] = "-p";
av[5] = out + 1;
av[6] = 0;
ov[0] = PROC_FD_DUP(open("/dev/null", O_WRONLY), 2, PROC_FD_PARENT|PROC_FD_CHILD);
ov[1] = 0;
sfsprintf(out, &buf[sizeof(buf)] - out, ".%d", getpid());
for (n = 0; n < elementsof(trace); n++)
if (!procfree(procopen(trace[n], av + 1, NiL, ov, PROC_ARGMOD|PROC_GID|PROC_UID|(n == (elementsof(trace) - 1) ? PROC_CLEANUP : 0))))
{
sleep(1);
break;
}
}
