1 /*- 2 * Copyright (c) 1980 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.proprietary.c% 6 */ 7 8 #ifndef lint 9 static char sccsid[] = "@(#)fork_.c 5.2 (Berkeley) 04/12/91"; 10 #endif /* not lint */ 11 12 /* 13 * fork a copy of this process 14 * 15 * calling sequence: 16 * integer fork 17 * ierror = fork() 18 * where: 19 * ierror will be - child pid if parent and successful 20 * - 0 if child 21 * - -errno if unsuccessful 22 */ 23 24 #include "../libI77/fiodefs.h" 25 26 extern int errno; 27 28 long fork_() 29 { 30 long i; 31 32 for (i = 0; i < MXUNIT; i++) 33 flush_(&i); 34 i = (long)fork(); 35 if (i < 0) 36 return((long)(-errno)); 37 return(i); 38 } 39