101 	sigset_t nset;  in Popen()  local
116 	(void)sigemptyset(&nset);  in Popen()
117 	pid = start_command(value("SHELL"), &nset, fd0, fd1, "-c", cmd, NULL);  in Popen()
133 	sigset_t nset, oset;  in Pclose()  local
138 	(void)sigemptyset(&nset);  in Pclose()
139 	(void)sigaddset(&nset, SIGINT);  in Pclose()
140 	(void)sigaddset(&nset, SIGHUP);  in Pclose()
141 	(void)sigprocmask(SIG_BLOCK, &nset, &oset);  in Pclose()
208 start_commandv(char *cmd, sigset_t *nset, int infd, int outfd, va_list args)  in start_commandv()  argument
223 		prepare_child(nset, infd, outfd);  in start_commandv()
232 run_command(char *cmd, sigset_t *nset, int infd, int outfd, ...)  in run_command()  argument
238 	pid = start_commandv(cmd, nset, infd, outfd, args);  in run_command()
246 start_command(char *cmd, sigset_t *nset, int infd, int outfd, ...)  in start_command()  argument
252 	r = start_commandv(cmd, nset, infd, outfd, args);  in start_command()
258 prepare_child(sigset_t *nset, int infd, int outfd)  in prepare_child()  argument
272 		if (nset != NULL && sigismember(nset, i))  in prepare_child()
274 	if (nset == NULL || !sigismember(nset, SIGINT))  in prepare_child()
362 	sigset_t nset, oset;  in wait_child()  local
365 	(void)sigemptyset(&nset);  in wait_child()
366 	(void)sigaddset(&nset, SIGCHLD);  in wait_child()
367 	(void)sigprocmask(SIG_BLOCK, &nset, &oset);  in wait_child()
394 	sigset_t nset, oset;  in free_child()  local
396 	(void)sigemptyset(&nset);  in free_child()
397 	(void)sigaddset(&nset, SIGCHLD);  in free_child()
398 	(void)sigprocmask(SIG_BLOCK, &nset, &oset);  in free_child()