1419     int pdes[2], pid;  in Popen()  local
1430     if (pipe(pdes) < 0) {  in Popen()
1438         close(pdes[0]);  in Popen()
1439         close(pdes[1]);  in Popen()
1448         close(pdes[0]);  in Popen()
1449         close(pdes[1]);  in Popen()
1462             if (pdes[1] != 1) {  in Popen()
1464                 dup2(pdes[1], 1);  in Popen()
1465                 close(pdes[1]);  in Popen()
1467             close(pdes[0]);  in Popen()
1470             if (pdes[0] != 0) {  in Popen()
1472                 dup2(pdes[0], 0);  in Popen()
1473                 close(pdes[0]);  in Popen()
1475             close(pdes[1]);  in Popen()
1486         iop = fdopen(pdes[0], type);  in Popen()
1487         close(pdes[1]);  in Popen()
1490         iop = fdopen(pdes[1], type);  in Popen()
1491         close(pdes[0]);  in Popen()
1512     int pdes[2], pid;  in Fopen()  local
1523     if (pipe(pdes) < 0) {  in Fopen()
1530         close(pdes[0]);  in Fopen()
1531         close(pdes[1]);  in Fopen()
1540             if (pdes[1] != 1) {  in Fopen()
1542                 dup2(pdes[1], 1);  in Fopen()
1543                 close(pdes[1]);  in Fopen()
1545             close(pdes[0]);  in Fopen()
1548             if (pdes[0] != 0) {  in Fopen()
1550                 dup2(pdes[0], 0);  in Fopen()
1551                 close(pdes[0]);  in Fopen()
1553             close(pdes[1]);  in Fopen()
1564         iop = fdopen(pdes[0], type);  in Fopen()
1565         close(pdes[1]);  in Fopen()
1568         iop = fdopen(pdes[1], type);  in Fopen()
1569         close(pdes[0]);  in Fopen()