1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
23*0Sstevel@tonic-gate /* All Rights Reserved */
24*0Sstevel@tonic-gate
25*0Sstevel@tonic-gate
26*0Sstevel@tonic-gate #ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.1 */
27*0Sstevel@tonic-gate
28*0Sstevel@tonic-gate #include <stdio.h>
29*0Sstevel@tonic-gate #include <ctype.h>
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate /*
32*0Sstevel@tonic-gate * getword - extract one token from the string
33*0Sstevel@tonic-gate * - token delimiter is white space if getall is FALSE
34*0Sstevel@tonic-gate * - token delimiter is ':' or '\0' if getall is TRUE
35*0Sstevel@tonic-gate */
36*0Sstevel@tonic-gate char *
getword(ptr,size,getall)37*0Sstevel@tonic-gate getword(ptr, size, getall)
38*0Sstevel@tonic-gate register char *ptr; /* pointer to the string to be scanned */
39*0Sstevel@tonic-gate int *size; /* *size = number of characters scanned */
40*0Sstevel@tonic-gate int getall; /* if TRUE, get all char until ':' or '\0' */
41*0Sstevel@tonic-gate {
42*0Sstevel@tonic-gate register char *optr,c;
43*0Sstevel@tonic-gate char quoted();
44*0Sstevel@tonic-gate static char word[BUFSIZ];
45*0Sstevel@tonic-gate int qsize;
46*0Sstevel@tonic-gate
47*0Sstevel@tonic-gate *size = 0;
48*0Sstevel@tonic-gate if (!getall) {
49*0Sstevel@tonic-gate /* Skip all white spaces */
50*0Sstevel@tonic-gate while (isspace(*ptr)) {
51*0Sstevel@tonic-gate (*size)++;
52*0Sstevel@tonic-gate ptr++;
53*0Sstevel@tonic-gate }
54*0Sstevel@tonic-gate }
55*0Sstevel@tonic-gate
56*0Sstevel@tonic-gate /* Put all characters from here to next white space or ':' or '\0' */
57*0Sstevel@tonic-gate /* into the word, up to the size of the word. */
58*0Sstevel@tonic-gate for (optr= word,*optr='\0';
59*0Sstevel@tonic-gate *ptr != '\0' && *ptr != ':'; ptr++,(*size)++) {
60*0Sstevel@tonic-gate if (!getall) {
61*0Sstevel@tonic-gate if (isspace(*ptr))
62*0Sstevel@tonic-gate break;
63*0Sstevel@tonic-gate }
64*0Sstevel@tonic-gate
65*0Sstevel@tonic-gate /* If the character is quoted, analyze it. */
66*0Sstevel@tonic-gate if (*ptr == '\\') {
67*0Sstevel@tonic-gate c = quoted(ptr,&qsize);
68*0Sstevel@tonic-gate (*size) += qsize;
69*0Sstevel@tonic-gate ptr += qsize;
70*0Sstevel@tonic-gate } else c = *ptr;
71*0Sstevel@tonic-gate
72*0Sstevel@tonic-gate /* If there is room, add this character to the word. */
73*0Sstevel@tonic-gate if (optr < &word[BUFSIZ] ) *optr++ = c;
74*0Sstevel@tonic-gate }
75*0Sstevel@tonic-gate
76*0Sstevel@tonic-gate /* skip trailing blanks if any*/
77*0Sstevel@tonic-gate while (isspace(*ptr)) {
78*0Sstevel@tonic-gate (*size)++;
79*0Sstevel@tonic-gate ptr++;
80*0Sstevel@tonic-gate }
81*0Sstevel@tonic-gate
82*0Sstevel@tonic-gate /* Make sure the line is null terminated. */
83*0Sstevel@tonic-gate *optr++ = '\0';
84*0Sstevel@tonic-gate return(word);
85*0Sstevel@tonic-gate }
86*0Sstevel@tonic-gate
87*0Sstevel@tonic-gate /* "quoted" takes a quoted character, starting at the quote */
88*0Sstevel@tonic-gate /* character, and returns a single character plus the size of */
89*0Sstevel@tonic-gate /* the quote string. "quoted" recognizes the following as */
90*0Sstevel@tonic-gate /* special, \n,\r,\v,\t,\b,\f as well as the \nnn notation. */
91*0Sstevel@tonic-gate char
quoted(ptr,qsize)92*0Sstevel@tonic-gate quoted(ptr,qsize)
93*0Sstevel@tonic-gate char *ptr;
94*0Sstevel@tonic-gate int *qsize;
95*0Sstevel@tonic-gate {
96*0Sstevel@tonic-gate register char c,*rptr;
97*0Sstevel@tonic-gate register int i;
98*0Sstevel@tonic-gate
99*0Sstevel@tonic-gate rptr = ptr;
100*0Sstevel@tonic-gate switch(*++rptr) {
101*0Sstevel@tonic-gate case 'n':
102*0Sstevel@tonic-gate c = '\n';
103*0Sstevel@tonic-gate break;
104*0Sstevel@tonic-gate case 'r':
105*0Sstevel@tonic-gate c = '\r';
106*0Sstevel@tonic-gate break;
107*0Sstevel@tonic-gate case 'v':
108*0Sstevel@tonic-gate c = '\013';
109*0Sstevel@tonic-gate break;
110*0Sstevel@tonic-gate case 'b':
111*0Sstevel@tonic-gate c = '\b';
112*0Sstevel@tonic-gate break;
113*0Sstevel@tonic-gate case 't':
114*0Sstevel@tonic-gate c = '\t';
115*0Sstevel@tonic-gate break;
116*0Sstevel@tonic-gate case 'f':
117*0Sstevel@tonic-gate c = '\f';
118*0Sstevel@tonic-gate break;
119*0Sstevel@tonic-gate case ':':
120*0Sstevel@tonic-gate c = ':';
121*0Sstevel@tonic-gate break;
122*0Sstevel@tonic-gate default:
123*0Sstevel@tonic-gate
124*0Sstevel@tonic-gate /* If this is a numeric string, take up to three characters of */
125*0Sstevel@tonic-gate /* it as the value of the quoted character. */
126*0Sstevel@tonic-gate if (*rptr >= '0' && *rptr <= '7') {
127*0Sstevel@tonic-gate for (i=0,c=0; i < 3;i++) {
128*0Sstevel@tonic-gate c = c*8 + (*rptr - '0');
129*0Sstevel@tonic-gate if (*++rptr < '0' || *rptr > '7') break;
130*0Sstevel@tonic-gate }
131*0Sstevel@tonic-gate rptr--;
132*0Sstevel@tonic-gate
133*0Sstevel@tonic-gate /* If the character following the '\\' is a NULL, back up the */
134*0Sstevel@tonic-gate /* ptr so that the NULL won't be missed. The sequence */
135*0Sstevel@tonic-gate /* backslash null is essentually illegal. */
136*0Sstevel@tonic-gate } else if (*rptr == '\0') {
137*0Sstevel@tonic-gate c = '\0';
138*0Sstevel@tonic-gate rptr--;
139*0Sstevel@tonic-gate
140*0Sstevel@tonic-gate /* In all other cases the quoting does nothing. */
141*0Sstevel@tonic-gate } else c = *rptr;
142*0Sstevel@tonic-gate break;
143*0Sstevel@tonic-gate }
144*0Sstevel@tonic-gate
145*0Sstevel@tonic-gate /* Compute the size of the quoted character. */
146*0Sstevel@tonic-gate (*qsize) = rptr - ptr;
147*0Sstevel@tonic-gate return(c);
148*0Sstevel@tonic-gate }
149*0Sstevel@tonic-gate
150