static int start_process(Channel * c, char ** envp, char * dir, char * exe, char ** args, int attach,
int * pid, int * selfattach, ChildProcess ** prs) {
int err = 0;
int fd_tty_master = -1;
char * tty_slave_name = NULL;
fd_tty_master = posix_openpt(O_RDWR|O_NOCTTY);
if (fd_tty_master < 0 || grantpt(fd_tty_master) < 0 ||
unlockpt(fd_tty_master) < 0 || (tty_slave_name = ptsname(fd_tty_master)) == NULL) err = errno;
if (err == 0 && fd_tty_master < 3) {
int fd0 = fd_tty_master;
if ((fd_tty_master = dup(fd_tty_master)) < 0 || close(fd0)) err = errno;
}
if (!err) {
*pid = fork();
if (*pid < 0) err = errno;
if (*pid == 0) {
int fd = -1;
int fd_tty_slave = -1;
setsid();
if (!err && (fd = sysconf(_SC_OPEN_MAX)) < 0) err = errno;
if (!err && (fd_tty_slave = open(tty_slave_name, O_RDWR)) < 0) err = errno;
if (!err && dup2(fd_tty_slave, 0) < 0) err = errno;
if (!err && dup2(fd_tty_slave, 1) < 0) err = errno;
if (!err && dup2(fd_tty_slave, 2) < 0) err = errno;
while (!err && fd > 3) close(--fd);
if (!err && attach && context_attach_self() < 0) err = errno;
if (!err) {
execve(exe, args, envp);
err = errno;
}
if (!attach) err = 1;
else if (err < 1) err = EINVAL;
else if (err > 0xff) err = EINVAL;
exit(err);
}
}
if (!err) {
*prs = loc_alloc_zero(sizeof(ChildProcess));
(*prs)->inp = fd_tty_master;
(*prs)->out = fd_tty_master;
(*prs)->err = fd_tty_master;
(*prs)->pid = *pid;
(*prs)->bcg = c->bcg;
list_add_first(&(*prs)->link, &prs_list);
}
*selfattach = 1;
if (!err) return 0;
errno = err;
return -1;
}
int run_test_process(ContextAttachCallBack * done, void * data) {
#if defined(WIN32)
char fnm[FILE_PATH_SIZE];
char cmd[FILE_PATH_SIZE];
int res = 0;
STARTUPINFO si;
PROCESS_INFORMATION prs;
ContextAttachArgs * args;
memset(&si, 0, sizeof(si));
memset(&prs, 0, sizeof(prs));
memset(fnm, 0, sizeof(fnm));
if (GetModuleFileName(NULL, fnm, sizeof(fnm)) == 0) {
set_win32_errno(GetLastError());
return -1;
}
si.cb = sizeof(si);
strcpy(cmd, "agent.exe -t");
if (CreateProcess(fnm, cmd, NULL, NULL,
FALSE, CREATE_SUSPENDED | CREATE_DEFAULT_ERROR_MODE | CREATE_NO_WINDOW,
NULL, NULL, &si, &prs) == 0) {
set_win32_errno(GetLastError());
return -1;
}
args = (ContextAttachArgs *)loc_alloc(sizeof(ContextAttachArgs));
args->done = done;
args->data = data;
args->thread = prs.hThread;
args->process = prs.hProcess;
res = context_attach(prs.dwProcessId, done_context_attach, args, 0);
if (res != 0) loc_free(args);
return res;
#elif defined(_WRS_KERNEL)
int tid = taskCreate("tTcf", 100, 0, 0x4000, (FUNCPTR)test_proc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
if (tid == 0) return -1;
taskStop(tid);
taskActivate(tid);
assert(taskIsStopped(tid));
return context_attach(tid, done, data, 0);
#else
/* Create child process to debug */
int pid = fork();
if (pid < 0) return -1;
if (pid == 0) {
int fd;
if (context_attach_self() < 0) exit(1);
fd = sysconf(_SC_OPEN_MAX);
while (fd-- > 2) close(fd);
if (tkill(getpid(), SIGSTOP) < 0) exit(1);
test_proc();
exit(0);
}
return context_attach(pid, done, data, CONTEXT_ATTACH_SELF);
#endif
}
static int start_process(Channel * c, char ** envp, char * dir, char * exe, char ** args, int attach,
int * pid, int * selfattach, ChildProcess ** prs) {
int err = 0;
int p_inp[2];
int p_out[2];
int p_err[2];
if (pipe(p_inp) < 0 || pipe(p_out) < 0 || pipe(p_err) < 0) err = errno;
if (err == 0 && (p_inp[0] < 3 || p_out[1] < 3 || p_err[1] < 3)) {
int fd0 = p_inp[0];
int fd1 = p_out[1];
int fd2 = p_err[1];
if ((p_inp[0] = dup(p_inp[0])) < 0 ||
(p_out[1] = dup(p_out[1])) < 0 ||
(p_err[1] = dup(p_err[1])) < 0 ||
close(fd0) < 0 ||
close(fd1) < 0 ||
close(fd2) < 0) err = errno;
}
if (!err) {
*pid = fork();
if (*pid < 0) err = errno;
if (*pid == 0) {
int fd = -1;
int err = 0;
if (err == 0) {
fd = sysconf(_SC_OPEN_MAX);
if (fd < 0) err = errno;
}
if (!err && dup2(p_inp[0], 0) < 0) err = errno;
if (!err && dup2(p_out[1], 1) < 0) err = errno;
if (!err && dup2(p_err[1], 2) < 0) err = errno;
if (!err) {
while (fd > 3) close(--fd);
}
if (!err && attach && context_attach_self() < 0) err = errno;
if (!err) {
execve(exe, args, envp);
err = errno;
}
if (!attach) err = 1;
else if (err < 1) err = EINVAL;
else if (err > 0xff) err = EINVAL;
exit(err);
}
}
if (!err) {
if (close(p_inp[0]) < 0 || close(p_out[1]) < 0 || close(p_err[1]) < 0) err = errno;
}
if (!err) {
*prs = loc_alloc_zero(sizeof(ChildProcess));
(*prs)->inp = p_inp[1];
(*prs)->out = p_out[0];
(*prs)->err = p_err[0];
(*prs)->pid = *pid;
(*prs)->bcg = c->bcg;
list_add_first(&(*prs)->link, &prs_list);
}
*selfattach = 1;
if (!err) return 0;
errno = err;
return -1;
}
