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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1990, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#include <stdio.h>
#include <string.h>
#include "util.h"
/*
* This is just like fgets, but recognizes that "\\n" signals a continuation
* of a line
*/
char *
getaline(line, maxlen, fp)
char *line;
int maxlen;
FILE *fp;
{
register char *p;
register char *start;
int c;
start = line;
nextline:
if (fgets(start, maxlen, fp) == NULL) {
return (NULL);
}
for (p = start; *p; p++) {
if (*p == '\n') {
if (p > start && *(p-1) == '\\') {
start = p - 1;
maxlen++;
goto nextline;
} else {
return (line);
}
}
maxlen--;
}
/*
* Input line is too long. Rest of the line needs to be discarded.
* Reinsert the last char into the stream. This is done so that
* in case the last char read is '\' and it is followed by a '\n'
* then the next line too can be discarded.
*/
if (p > start)
(void) ungetc(*(p-1), fp);
/*
* Discard the rest of the line
*/
while ((c = getc(fp)) != EOF) {
if (c == '\n')
break;
else if (c == '\\') {
/*
* Ignore the next character except EOF
*/
if (getc(fp) == EOF)
break;
}
}
maxlen = strlen(line) + 1;
/*
* Certain functions expects a newline in the buffer.
*/
if (maxlen >= 2)
line[maxlen - 2] = '\n';
(void) fprintf(stderr, "Following line too long - remaining chars "
"ignored\n--- %s", line);
return (line);
}
void
fatal(message)
char *message;
{
(void) fprintf(stderr, "fatal error: %s\n", message);
exit(1);
}
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