10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 50Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 60Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 70Sstevel@tonic-gate * with the License. 80Sstevel@tonic-gate * 90Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 100Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 110Sstevel@tonic-gate * See the License for the specific language governing permissions 120Sstevel@tonic-gate * and limitations under the License. 130Sstevel@tonic-gate * 140Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 150Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 160Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 170Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 180Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 190Sstevel@tonic-gate * 200Sstevel@tonic-gate * CDDL HEADER END 210Sstevel@tonic-gate */ 22132Srobinson 230Sstevel@tonic-gate /* 24*1219Sraf * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 25132Srobinson * Use is subject to license terms. 260Sstevel@tonic-gate */ 270Sstevel@tonic-gate 280Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 290Sstevel@tonic-gate 30*1219Sraf #include "mt.h" 310Sstevel@tonic-gate #include <stdio.h> 320Sstevel@tonic-gate #include <stdlib.h> 330Sstevel@tonic-gate #include <strings.h> 340Sstevel@tonic-gate 350Sstevel@tonic-gate char *_strpbrk_escape(char *, char *); 360Sstevel@tonic-gate 370Sstevel@tonic-gate /* 380Sstevel@tonic-gate * _strtok_escape() 390Sstevel@tonic-gate * Like strtok_r, except we don't break on a token if it is escaped 400Sstevel@tonic-gate * with the escape character (\). 410Sstevel@tonic-gate */ 420Sstevel@tonic-gate char * 430Sstevel@tonic-gate _strtok_escape(char *string, char *sepset, char **lasts) 440Sstevel@tonic-gate { 45132Srobinson char *r; 460Sstevel@tonic-gate 470Sstevel@tonic-gate /* first or subsequent call */ 480Sstevel@tonic-gate if (string == NULL) 490Sstevel@tonic-gate string = *lasts; 500Sstevel@tonic-gate 510Sstevel@tonic-gate if (string == 0) /* return if no tokens remaining */ 520Sstevel@tonic-gate return (NULL); 530Sstevel@tonic-gate 540Sstevel@tonic-gate if (*string == '\0') /* return if no tokens remaining */ 550Sstevel@tonic-gate return (NULL); 560Sstevel@tonic-gate 57132Srobinson /* move past token */ 58132Srobinson if ((r = _strpbrk_escape(string, sepset)) == NULL) 590Sstevel@tonic-gate *lasts = 0; /* indicate this is last token */ 600Sstevel@tonic-gate else { 610Sstevel@tonic-gate *r = '\0'; 620Sstevel@tonic-gate *lasts = r+1; 630Sstevel@tonic-gate } 640Sstevel@tonic-gate return (string); 650Sstevel@tonic-gate } 660Sstevel@tonic-gate 670Sstevel@tonic-gate /* 680Sstevel@tonic-gate * Return ptr to first occurrence of any non-escaped character from `brkset' 690Sstevel@tonic-gate * in the character string `string'; NULL if none exists. 700Sstevel@tonic-gate */ 710Sstevel@tonic-gate char * 720Sstevel@tonic-gate _strpbrk_escape(char *string, char *brkset) 730Sstevel@tonic-gate { 740Sstevel@tonic-gate const char *p; 750Sstevel@tonic-gate 760Sstevel@tonic-gate do { 770Sstevel@tonic-gate for (p = brkset; *p != '\0' && *p != *string; ++p) 780Sstevel@tonic-gate ; 790Sstevel@tonic-gate if (p == string) 800Sstevel@tonic-gate return ((char *)string); 810Sstevel@tonic-gate if (*p != '\0') { 820Sstevel@tonic-gate if (*(string-1) != '\\') 830Sstevel@tonic-gate return ((char *)string); 840Sstevel@tonic-gate } 850Sstevel@tonic-gate } while (*string++); 860Sstevel@tonic-gate 870Sstevel@tonic-gate return (NULL); 880Sstevel@tonic-gate } 890Sstevel@tonic-gate 900Sstevel@tonic-gate 910Sstevel@tonic-gate char * 920Sstevel@tonic-gate _escape(char *s, char *esc) 930Sstevel@tonic-gate { 940Sstevel@tonic-gate int nescs = 0; /* number of escapes to place in s */ 950Sstevel@tonic-gate int i, j; 960Sstevel@tonic-gate int len_s; 970Sstevel@tonic-gate char *tmp; 980Sstevel@tonic-gate 990Sstevel@tonic-gate if (s == NULL || esc == NULL) 1000Sstevel@tonic-gate return (NULL); 1010Sstevel@tonic-gate 1020Sstevel@tonic-gate len_s = strlen(s); 1030Sstevel@tonic-gate for (i = 0; i < len_s; i++) 1040Sstevel@tonic-gate if (strchr(esc, s[i])) 1050Sstevel@tonic-gate nescs++; 106132Srobinson if ((tmp = malloc(nescs + len_s + 1)) == NULL) 1070Sstevel@tonic-gate return (NULL); 1080Sstevel@tonic-gate for (i = 0, j = 0; i < len_s; i++) { 1090Sstevel@tonic-gate if (strchr(esc, s[i])) { 1100Sstevel@tonic-gate tmp[j++] = '\\'; 1110Sstevel@tonic-gate } 1120Sstevel@tonic-gate tmp[j++] = s[i]; 1130Sstevel@tonic-gate } 1140Sstevel@tonic-gate tmp[len_s + nescs] = '\0'; 1150Sstevel@tonic-gate return (tmp); 1160Sstevel@tonic-gate } 1170Sstevel@tonic-gate 1180Sstevel@tonic-gate 1190Sstevel@tonic-gate char * 1200Sstevel@tonic-gate _unescape(char *s, char *esc) 1210Sstevel@tonic-gate { 1220Sstevel@tonic-gate int len_s; 1230Sstevel@tonic-gate int i, j; 1240Sstevel@tonic-gate char *tmp; 1250Sstevel@tonic-gate 1260Sstevel@tonic-gate if (s == NULL || esc == NULL) 127132Srobinson return (NULL); 1280Sstevel@tonic-gate 1290Sstevel@tonic-gate len_s = strlen(s); 130132Srobinson if ((tmp = malloc(len_s + 1)) == NULL) 131132Srobinson return (NULL); 1320Sstevel@tonic-gate for (i = 0, j = 0; i < len_s; i++) { 1330Sstevel@tonic-gate if (s[i] == '\\' && strchr(esc, s[i + 1])) 1340Sstevel@tonic-gate tmp[j++] = s[++i]; 1350Sstevel@tonic-gate else 1360Sstevel@tonic-gate tmp[j++] = s[i]; 1370Sstevel@tonic-gate } 1380Sstevel@tonic-gate tmp[j] = NULL; 1390Sstevel@tonic-gate return (tmp); 1400Sstevel@tonic-gate } 1410Sstevel@tonic-gate 1420Sstevel@tonic-gate char * 1430Sstevel@tonic-gate _strdup_null(char *s) 1440Sstevel@tonic-gate { 1450Sstevel@tonic-gate return (strdup(s ? s : "")); 1460Sstevel@tonic-gate } 1470Sstevel@tonic-gate 1480Sstevel@tonic-gate 1490Sstevel@tonic-gate /* 1500Sstevel@tonic-gate * read a line into buffer from a mmap'ed file. 1510Sstevel@tonic-gate * return length of line read. 1520Sstevel@tonic-gate */ 1530Sstevel@tonic-gate int 1540Sstevel@tonic-gate _readbufline(char *mapbuf, /* input mmap buffer */ 1550Sstevel@tonic-gate int mapsize, /* input size */ 1560Sstevel@tonic-gate char *buffer, /* output storage */ 1570Sstevel@tonic-gate int buflen, /* output size */ 1580Sstevel@tonic-gate int *lastlen) /* input read till here last time */ 1590Sstevel@tonic-gate { 1600Sstevel@tonic-gate int linelen; 1610Sstevel@tonic-gate 162132Srobinson for (;;) { 1630Sstevel@tonic-gate linelen = 0; 1640Sstevel@tonic-gate while (linelen < buflen - 1) { /* "- 1" saves room for \n\0 */ 1650Sstevel@tonic-gate if (*lastlen >= mapsize) { 1660Sstevel@tonic-gate if (linelen == 0 || 1670Sstevel@tonic-gate buffer[linelen - 1] == '\\') { 1680Sstevel@tonic-gate return (-1); 1690Sstevel@tonic-gate } else { 1700Sstevel@tonic-gate buffer[linelen] = '\n'; 1710Sstevel@tonic-gate buffer[linelen + 1] = '\0'; 1720Sstevel@tonic-gate return (linelen); 1730Sstevel@tonic-gate } 1740Sstevel@tonic-gate } 1750Sstevel@tonic-gate switch (mapbuf[*lastlen]) { 1760Sstevel@tonic-gate case '\n': 1770Sstevel@tonic-gate (*lastlen)++; 1780Sstevel@tonic-gate if (linelen > 0 && 1790Sstevel@tonic-gate buffer[linelen - 1] == '\\') { 1800Sstevel@tonic-gate --linelen; /* remove the '\\' */ 1810Sstevel@tonic-gate } else { 1820Sstevel@tonic-gate buffer[linelen] = '\n'; 1830Sstevel@tonic-gate buffer[linelen + 1] = '\0'; 1840Sstevel@tonic-gate return (linelen); 1850Sstevel@tonic-gate } 1860Sstevel@tonic-gate break; 1870Sstevel@tonic-gate default: 1880Sstevel@tonic-gate buffer[linelen] = mapbuf[*lastlen]; 1890Sstevel@tonic-gate (*lastlen)++; 1900Sstevel@tonic-gate linelen++; 1910Sstevel@tonic-gate } 1920Sstevel@tonic-gate } 1930Sstevel@tonic-gate /* Buffer overflow -- eat rest of line and loop again */ 1940Sstevel@tonic-gate while (mapbuf[*lastlen] != '\n') { 1950Sstevel@tonic-gate if (mapbuf[*lastlen] == EOF) { 1960Sstevel@tonic-gate return (-1); 1970Sstevel@tonic-gate } 1980Sstevel@tonic-gate (*lastlen)++; 1990Sstevel@tonic-gate }; 2000Sstevel@tonic-gate } 201132Srobinson /* NOTREACHED */ 2020Sstevel@tonic-gate } 203