--- libaitio/src/exec.c	2013/12/05 12:57:35	1.1.2.2
+++ libaitio/src/exec.c	2013/12/05 15:18:22	1.1.2.6
@@ -37,8 +37,10 @@ io_progInit(const char *progName, u_int initNum, u_int
 
 	pthread_mutex_init(&prg->prog_mtx, NULL);
 
-	if (!io_progOpen(prg, prg->prog_inin))
+	if (io_progOpen(prg, prg->prog_inin) < 0) {
 		io_progDestroy(&prg);
+		prg = NULL;
+	}
 	return prg;
 }
 
@@ -87,7 +89,7 @@ io_progClose(prog_t * __restrict prg, u_int closeNum)
 	for (i = array_Size(prg->prog_fds) - 1; 
 			(closeNum ? ret < closeNum : 42) && i > -1; i--)
 		if (array_Get(prg->prog_fds, i)) {
-			pclose(array(prg->prog_fds, i, FILE*));
+			e_pclose(array(prg->prog_fds, i, FILE*));
 			array_Del(prg->prog_fds, i, 0);
 			prg->prog_cnum--;
 			ret++;
@@ -108,8 +110,9 @@ int
 io_progOpen(prog_t * __restrict prg, u_int execNum)
 {
 	FILE *f;
-	int ret = 0;
+	int stat, ret = 0;
 	register int i;
+	pid_t pid;
 
 	if (!prg)
 		return 0;
@@ -121,11 +124,16 @@ io_progOpen(prog_t * __restrict prg, u_int execNum)
 	pthread_mutex_lock(&prg->prog_mtx);
 	for (i = 0; (execNum ? ret < execNum : 42) && i < array_Size(prg->prog_fds); i++)
 		if (!array_Get(prg->prog_fds, i)) {
-			f = popen(prg->prog_name, "r+");
+			f = e_popen(prg->prog_name, "r+", &pid);
 			if (!f) {
 				LOGERR;
-				ret *= -1;
+				ret = -1;
 				break;
+			} else if (waitpid(pid, &stat, WNOHANG)) {
+				io_SetErr(ECHILD, "Program with pid=%d exit with status %d", 
+						pid, WIFEXITED(stat) ? WEXITSTATUS(stat) : -1);
+				ret = -1;
+				break;
 			} else
 				array_Set(prg->prog_fds, i, f);
 			prg->prog_cnum++;
@@ -161,7 +169,7 @@ io_progVacuum(prog_t * __restrict prg, u_int toNum)
 	pthread_mutex_lock(&prg->prog_mtx);
 	for (i = array_Size(prg->prog_fds) - 1; prg->prog_cnum > toNum && i > -1; i--)
 		if (array_Get(prg->prog_fds, i)) {
-			pclose(array(prg->prog_fds, i, FILE*));
+			e_pclose(array(prg->prog_fds, i, FILE*));
 			array_Del(prg->prog_fds, i, 0);
 			prg->prog_cnum--;
 			ret++;