1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/types.h> 33 #include <ctype.h> 34 #include "libmail.h" 35 36 #define TRUE 1 37 #define FALSE 0 38 39 char ** 40 setup_exec(char *s) 41 { 42 char *p = s, *q; 43 static char *argvec[256]; /* is this enough? */ 44 int i = 0; 45 int stop; 46 int ignorespace = FALSE; 47 48 /* Parse up string into arg. vec. for subsequent exec. Assume */ 49 /* whitespace delimits args. Any non-escaped double quotes will */ 50 /* be used to group multiple whitespace-delimited tokens into */ 51 /* a single exec arg. */ 52 p = skipspace(p); 53 while (*p) { 54 q = p; 55 stop = FALSE; 56 while (*q && (stop == FALSE)) { 57 again: 58 switch (*q) { 59 case '\\': 60 /* Slide command string 1 char to left */ 61 strmove(q, q+1); 62 break; 63 case '"': 64 ignorespace = ((ignorespace == TRUE) ? 65 FALSE : TRUE); 66 /* Slide command string 1 char to left */ 67 strmove(q, q+1); 68 goto again; 69 default: 70 if (isspace((int)*q) && 71 (ignorespace == FALSE)) { 72 stop = TRUE; 73 continue; 74 } 75 break; 76 } 77 q++; 78 } 79 if (*q == '\0') { 80 argvec[i++] = p; 81 break; 82 } 83 *q++ = '\0'; 84 argvec[i++] = p; 85 p = skipspace(q); 86 } 87 argvec[i] = NULL; 88 if (i == 0) { 89 return (NULL); 90 } 91 return (argvec); 92 } 93