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 #include <sys/types.h> 31 #include <ctype.h> 32 #include "libmail.h" 33 34 #define TRUE 1 35 #define FALSE 0 36 37 char ** 38 setup_exec(char *s) 39 { 40 char *p = s, *q; 41 static char *argvec[256]; /* is this enough? */ 42 int i = 0; 43 int stop; 44 int ignorespace = FALSE; 45 46 /* Parse up string into arg. vec. for subsequent exec. Assume */ 47 /* whitespace delimits args. Any non-escaped double quotes will */ 48 /* be used to group multiple whitespace-delimited tokens into */ 49 /* a single exec arg. */ 50 p = skipspace(p); 51 while (*p) { 52 q = p; 53 stop = FALSE; 54 while (*q && (stop == FALSE)) { 55 again: 56 switch (*q) { 57 case '\\': 58 /* Slide command string 1 char to left */ 59 strmove(q, q+1); 60 break; 61 case '"': 62 ignorespace = ((ignorespace == TRUE) ? 63 FALSE : TRUE); 64 /* Slide command string 1 char to left */ 65 strmove(q, q+1); 66 goto again; 67 default: 68 if (isspace((int)*q) && 69 (ignorespace == FALSE)) { 70 stop = TRUE; 71 continue; 72 } 73 break; 74 } 75 q++; 76 } 77 if (*q == '\0') { 78 argvec[i++] = p; 79 break; 80 } 81 *q++ = '\0'; 82 argvec[i++] = p; 83 p = skipspace(q); 84 } 85 argvec[i] = NULL; 86 if (i == 0) { 87 return (NULL); 88 } 89 return (argvec); 90 } 91