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 /* 23*0Sstevel@tonic-gate * Copyright (c) 1996-2001 by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* SMI4.1 1.4 */ 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <stdio.h> 30*0Sstevel@tonic-gate #include <string.h> 31*0Sstevel@tonic-gate #include "util.h" 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate /* 37*0Sstevel@tonic-gate * This is just like fgets, but recognizes that "\\n" signals a continuation 38*0Sstevel@tonic-gate * of a line 39*0Sstevel@tonic-gate */ 40*0Sstevel@tonic-gate char * 41*0Sstevel@tonic-gate getline(line, maxlen, fp) 42*0Sstevel@tonic-gate char *line; 43*0Sstevel@tonic-gate int maxlen; 44*0Sstevel@tonic-gate FILE *fp; 45*0Sstevel@tonic-gate { 46*0Sstevel@tonic-gate register char *p; 47*0Sstevel@tonic-gate register char *start; 48*0Sstevel@tonic-gate int c; 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate start = line; 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate nextline: 53*0Sstevel@tonic-gate if (fgets(start, maxlen, fp) == NULL) { 54*0Sstevel@tonic-gate return (NULL); 55*0Sstevel@tonic-gate } 56*0Sstevel@tonic-gate for (p = start; *p; p++) { 57*0Sstevel@tonic-gate if (*p == '\n') { 58*0Sstevel@tonic-gate if (p > start && *(p-1) == '\\') { 59*0Sstevel@tonic-gate start = p - 1; 60*0Sstevel@tonic-gate maxlen++; 61*0Sstevel@tonic-gate goto nextline; 62*0Sstevel@tonic-gate } else { 63*0Sstevel@tonic-gate return (line); 64*0Sstevel@tonic-gate } 65*0Sstevel@tonic-gate } 66*0Sstevel@tonic-gate maxlen--; 67*0Sstevel@tonic-gate } 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate /* 70*0Sstevel@tonic-gate * Input line is too long. Rest of the line needs to be discarded. 71*0Sstevel@tonic-gate * Reinsert the last char into the stream. This is done so that 72*0Sstevel@tonic-gate * in case the last char read is '\' and it is followed by a '\n' 73*0Sstevel@tonic-gate * then the next line too can be discarded. 74*0Sstevel@tonic-gate */ 75*0Sstevel@tonic-gate if (p > start) 76*0Sstevel@tonic-gate (void) ungetc(*(p-1), fp); 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate /* 79*0Sstevel@tonic-gate * Discard the rest of the line 80*0Sstevel@tonic-gate */ 81*0Sstevel@tonic-gate while ((c = getc(fp)) != EOF) { 82*0Sstevel@tonic-gate if (c == '\n') 83*0Sstevel@tonic-gate break; 84*0Sstevel@tonic-gate else if (c == '\\') { 85*0Sstevel@tonic-gate /* 86*0Sstevel@tonic-gate * Ignore the next character except EOF 87*0Sstevel@tonic-gate */ 88*0Sstevel@tonic-gate if (getc(fp) == EOF) 89*0Sstevel@tonic-gate break; 90*0Sstevel@tonic-gate } 91*0Sstevel@tonic-gate } 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate maxlen = strlen(line) + 1; 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate /* 96*0Sstevel@tonic-gate * Certain functions expects a newline in the buffer. 97*0Sstevel@tonic-gate */ 98*0Sstevel@tonic-gate if (maxlen >= 2) 99*0Sstevel@tonic-gate line[maxlen - 2] = '\n'; 100*0Sstevel@tonic-gate (void) fprintf(stderr, "Following line too long - remaining chars " 101*0Sstevel@tonic-gate "ignored\n--- %s", line); 102*0Sstevel@tonic-gate return (line); 103*0Sstevel@tonic-gate } 104*0Sstevel@tonic-gate 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate void 107*0Sstevel@tonic-gate fatal(message) 108*0Sstevel@tonic-gate char *message; 109*0Sstevel@tonic-gate { 110*0Sstevel@tonic-gate (void) fprintf(stderr, "fatal error: %s\n", message); 111*0Sstevel@tonic-gate exit(1); 112*0Sstevel@tonic-gate } 113