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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright (c) 1999, by Sun Microsystems, Inc. 28 * All rights reserved. 29 */ 30 31 #pragma ident "%Z%%M% %I% %E% SMI" 32 /*LINTLIBRARY*/ 33 34 #include "synonyms.h" 35 #include <sys/types.h> 36 #include <ctype.h> 37 #include "libmail.h" 38 39 #define TRUE 1 40 #define FALSE 0 41 42 char ** 43 setup_exec(char *s) 44 { 45 char *p = s, *q; 46 static char *argvec[256]; /* is this enough? */ 47 int i = 0; 48 int stop; 49 int ignorespace = FALSE; 50 51 /* Parse up string into arg. vec. for subsequent exec. Assume */ 52 /* whitespace delimits args. Any non-escaped double quotes will */ 53 /* be used to group multiple whitespace-delimited tokens into */ 54 /* a single exec arg. */ 55 p = skipspace(p); 56 while (*p) { 57 q = p; 58 stop = FALSE; 59 while (*q && (stop == FALSE)) { 60 again: 61 switch (*q) { 62 case '\\': 63 /* Slide command string 1 char to left */ 64 strmove(q, q+1); 65 break; 66 case '"': 67 ignorespace = ((ignorespace == TRUE) ? 68 FALSE : TRUE); 69 /* Slide command string 1 char to left */ 70 strmove(q, q+1); 71 goto again; 72 default: 73 if (isspace((int)*q) && 74 (ignorespace == FALSE)) { 75 stop = TRUE; 76 continue; 77 } 78 break; 79 } 80 q++; 81 } 82 if (*q == '\0') { 83 argvec[i++] = p; 84 break; 85 } 86 *q++ = '\0'; 87 argvec[i++] = p; 88 p = skipspace(q); 89 } 90 argvec[i] = NULL; 91 if (i == 0) { 92 return (NULL); 93 } 94 return (argvec); 95 } 96