GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/make/varname.c Lines: 23 23 100.0 %
Date: 2016-12-06 Branches: 6 6 100.0 %

Line Branch Exec Source
1
/*	$OpenBSD: varname.c,v 1.6 2012/08/25 08:12:56 espie Exp $	*/
2
/*
3
 * Copyright (c) 2001 Marc Espie.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 * 1. Redistributions of source code must retain the above copyright
9
 *    notice, this list of conditions and the following disclaimer.
10
 * 2. Redistributions in binary form must reproduce the above copyright
11
 *    notice, this list of conditions and the following disclaimer in the
12
 *    documentation and/or other materials provided with the distribution.
13
 *
14
 * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
15
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17
 * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OPENBSD
18
 * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
20
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25
 */
26
27
#include <stdlib.h>
28
#include "config.h"
29
#include "defines.h"
30
#include "var.h"
31
#include "buf.h"
32
#include "varname.h"
33
34
const char *
35
VarName_Get(const char *start, struct Name *name, SymTable *ctxt, bool err,
36
    const char *(*cont)(const char *))
37
290898
{
38
	const char *p;
39
	size_t len;
40
41
290898
	p = cont(start);
42
	/* If we don't want recursive variables, we skip over '$' */
43
	if (!FEATURES(FEATURE_RECVARS)) {
44
		while (*p == '$')
45
			p = cont(p+1);
46
	}
47
290898
	if (*p != '$') {
48
285752
		name->s = start;
49
285752
		name->e = p;
50
285752
		name->tofree = false;
51
285752
		return p;
52
	} else {
53
		BUFFER buf;
54
5146
		Buf_Init(&buf, MAKE_BSIZE);
55
		for (;;) {
56
10307
			Buf_Addi(&buf, start, p);
57
10307
			if (*p != '$') {
58
5146
				name->s = (const char *)Buf_Retrieve(&buf);
59
5146
				name->e = name->s + Buf_Size(&buf);
60
5146
				name->tofree = true;
61
5146
				return p;
62
			}
63
5161
			start = p;
64
5161
			Var_ParseBuffer(&buf, start, ctxt, err, &len);
65
5161
			start += len;
66
5161
			p = cont(start);
67
5161
		}
68
	}
69
}
70
71
void
72
VarName_Free(struct Name *name)
73
291312
{
74
291312
	if (name->tofree)
75
5146
		free((char *)name->s);
76
291312
}
77