From bf63f78b6698f33ed3acbd4aed8822a35688c1ba Mon Sep 17 00:00:00 2001
From: David Oberhollenzer <david.oberhollenzer@tele2.at>
Date: Wed, 23 May 2018 22:26:17 +0200
Subject: Split configuration parser and utility library

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
---
 lib/src/rdline.c | 174 -------------------------------------------------------
 1 file changed, 174 deletions(-)
 delete mode 100644 lib/src/rdline.c

(limited to 'lib/src/rdline.c')

diff --git a/lib/src/rdline.c b/lib/src/rdline.c
deleted file mode 100644
index 47a9d2a..0000000
--- a/lib/src/rdline.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * Copyright (C) 2018 - David Oberhollenzer
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <ctype.h>
-#include <stdio.h>
-
-#include "util.h"
-
-static int rdline_getc(rdline_t *t)
-{
-	int ret;
-	char c;
-
-	if (t->argstr != NULL) {
-		c = *(t->argstr++);
-		if (c != '\0')
-			goto out;
-
-		t->argstr = NULL;
-	}
-
-	do {
-		ret = read(t->fd, &c, 1);
-	} while (ret < 0 && errno == EINTR);
-
-	if (ret < 0)
-		return -1;
-
-	if (ret == 0) {
-		if (t->i == 0) {
-			errno = 0;
-			return -1;
-		}
-		c = '\0';
-	}
-out:
-	return (c == '\n') ? '\0' : c;
-}
-
-static int rdline_append(rdline_t *t, int c)
-{
-	if (t->comment) {
-		if (c != '\0')
-			return 0;
-	} else if (t->string) {
-		if (t->escape) {
-			t->escape = false;
-		} else {
-			if (c == '\\')
-				t->escape = true;
-			if (c == '"')
-				t->string = false;
-		}
-	} else {
-		if (isspace(c))
-			c = ' ';
-		if (c == ' ' && (t->i == 0 || t->buffer[t->i - 1] == ' '))
-			return 0;
-		if (c == '#') {
-			t->comment = true;
-			return 0;
-		}
-		if (c == '"')
-			t->string = true;
-	}
-
-	if (c == '\0') {
-		while (t->i > 0 && t->buffer[t->i - 1] == ' ')
-			t->i -= 1;
-	}
-
-	if (t->i == sizeof(t->buffer))
-		return -1;
-
-	t->buffer[t->i++] = c;
-	return 0;
-}
-
-void rdline_init(rdline_t *t, int fd, const char *filename,
-		 int argc, const char *const *argv)
-{
-	memset(t, 0, sizeof(*t));
-	t->fd = fd;
-	t->filename = filename;
-	t->argc = argc;
-	t->argv = argv;
-}
-
-int rdline(rdline_t *t)
-{
-	const char *errstr;
-	int c;
-retry:
-	t->i = 0;
-	t->argstr = NULL;
-	t->string = t->escape = t->comment = false;
-	t->lineno += 1;
-
-	do {
-		errno = 0;
-		c = rdline_getc(t);
-		if (c < 0) {
-			if (errno == 0)
-				return 1;
-			errstr = strerror(errno);
-			goto fail;
-		}
-		if (c == 0 && t->string) {
-			errstr = "missing \"";
-			goto fail;
-		}
-
-		if (c == '%') {
-			c = rdline_getc(t);
-			if (c == 0) {
-				errstr = "unexpected end of line after '%%'";
-				goto fail;
-			}
-			if (c < 0) {
-				errstr = strerror(errno);
-				goto fail;
-			}
-
-			if (c != '%') {
-				if (!isdigit(c)) {
-					errstr = "exptected digit after '%%'";
-					goto fail;
-				}
-				if ((c - '0') >= t->argc) {
-					errstr = "argument out of range";
-					goto fail;
-				}
-				if (t->argstr != NULL) {
-					errstr = "recursive argument "
-						 "expansion";
-					goto fail;
-				}
-				t->argstr = t->argv[c - '0'];
-				continue;
-			}
-		}
-
-		if (rdline_append(t, c)) {
-			errstr = "line too long";
-			goto fail;
-		}
-	} while (c != '\0');
-
-	if (t->buffer[0] == '\0')
-		goto retry;
-
-	return 0;
-fail:
-	fprintf(stderr, "%s: %zu: %s\n", t->filename, t->lineno, errstr);
-	return -1;
-}
-- 
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