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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/make/memory.c	Lines:	17	38	44.7 %
Date:	2017-11-07	Branches:	5	16	31.3 %


/* $OpenBSD: memory.c,v 1.11 2014/05/18 08:08:50 espie Exp $ */

/*
 * Copyright (c) 1988, 1989, 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 * Copyright (c) 1989 by Berkeley Softworks
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Adam de Boor.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <ohash.h>
#include "defines.h"
#include "memory.h"

static void enomem(size_t);
static void enocmem(size_t, size_t);

/*
 * emalloc --
 *	malloc, but die on error.
 */
void *
emalloc(size_t size)
{
	void *p;

	if ((p = malloc(size)) == NULL)
		enomem(size);
	return p;
}

/*
 * estrdup --
 *	strdup, but die on error.
 */
char *
estrdup(const char *str)
{
	char *p;
	size_t size;

	size = strlen(str) + 1;

	p = emalloc(size);
	memcpy(p, str, size);
	return p;
}

/*
 * erealloc --
 *	realloc, but die on error.
 */
void *
erealloc(void *ptr, size_t size)
{
	if ((ptr = realloc(ptr, size)) == NULL)
		enomem(size);
	return ptr;
}

void *
ereallocarray(void *ptr, size_t s1, size_t s2)
{
	if ((ptr = reallocarray(ptr, s1, s2)) == NULL)
		enocmem(s1, s2);
	return ptr;
}

/* Support routines for hash tables.  */
void *
hash_calloc(size_t n, size_t s, void *u UNUSED)
{
	void *p;

	if ((p = calloc(n, s)) == NULL)
		enocmem(n, s);
	return p;
}

void
hash_free(void *p, void *u UNUSED)
{
	free(p);
}

void *
element_alloc(size_t s, void *u UNUSED)
{
	return emalloc(s);
}



/*
 * enomem --
 *	die when out of memory.
 */
void
enomem(size_t size)
{
	fprintf(stderr, "make: %s (%zu)\n", strerror(errno), size);
	exit(2);
}

void
enocmem(size_t sz1, size_t sz2)
{
	fprintf(stderr, "make: %s (%zu * %zu)\n", strerror(errno), sz1, sz2);
	exit(2);
}
/*
 * esetenv --
 *	change environment, die on error.
 */
void
esetenv(const char *name, const char *value)
{
	if (setenv(name, value, 1) == 0)
	    return;

	fprintf(stderr, "make: setenv failed (%s)\n", strerror(errno));
	exit(2);
}


/*
 * enunlink --
 *	Remove a file carefully, avoiding directories.
 */
int
eunlink(const char *file)
{
	struct stat st;

	if (lstat(file, &st) == -1)
		return -1;

	if (S_ISDIR(st.st_mode)) {
		errno = EISDIR;
		return -1;
	}
	return unlink(file);
}

void
free_hash(struct ohash *h)
{
	void *e;
	unsigned int i;

	for (e = ohash_first(h, &i); e != NULL; e = ohash_next(h, &i))
		free(e);
	ohash_delete(h);
}



Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: memory.c,v 1.11 2014/05/18 08:08:50 espie Exp $ */
2
3			/*
4			* Copyright (c) 1988, 1989, 1990, 1993
5			* The Regents of the University of California. All rights reserved.
6			* Copyright (c) 1989 by Berkeley Softworks
7			* All rights reserved.
8			*
9			* This code is derived from software contributed to Berkeley by
10			* Adam de Boor.
11			*
12			* Redistribution and use in source and binary forms, with or without
13			* modification, are permitted provided that the following conditions
14			* are met:
15			* 1. Redistributions of source code must retain the above copyright
16			* notice, this list of conditions and the following disclaimer.
17			* 2. Redistributions in binary form must reproduce the above copyright
18			* notice, this list of conditions and the following disclaimer in the
19			* documentation and/or other materials provided with the distribution.
20			* 3. Neither the name of the University nor the names of its contributors
21			* may be used to endorse or promote products derived from this software
22			* without specific prior written permission.
23			*
24			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34			* SUCH DAMAGE.
35			*/
36
37			#include <sys/types.h>
38			#include <sys/stat.h>
39			#include <errno.h>
40			#include <stddef.h>
41			#include <stdint.h>
42			#include <stdio.h>
43			#include <stdlib.h>
44			#include <string.h>
45			#include <unistd.h>
46			#include <ohash.h>
47			#include "defines.h"
48			#include "memory.h"
49
50			static void enomem(size_t);
51			static void enocmem(size_t, size_t);
52
53			/*
54			* emalloc --
55			* malloc, but die on error.
56			*/
57			void *
58			emalloc(size_t size)
59			{
60			void *p;
61
62	✗✓	724538472	if ((p = malloc(size)) == NULL)
63			enomem(size);
64		362269236	return p;
65			}
66
67			/*
68			* estrdup --
69			* strdup, but die on error.
70			*/
71			char *
72			estrdup(const char *str)
73			{
74			char *p;
75			size_t size;
76
77		6867650	size = strlen(str) + 1;
78
79		3433825	p = emalloc(size);
80		3433825	memcpy(p, str, size);
81		3433825	return p;
82			}
83
84			/*
85			* erealloc --
86			* realloc, but die on error.
87			*/
88			void *
89			erealloc(void *ptr, size_t size)
90			{
91	✗✓	4110742	if ((ptr = realloc(ptr, size)) == NULL)
92			enomem(size);
93		2055371	return ptr;
94			}
95
96			void *
97			ereallocarray(void *ptr, size_t s1, size_t s2)
98			{
99	✗✓	39631848	if ((ptr = reallocarray(ptr, s1, s2)) == NULL)
100			enocmem(s1, s2);
101		19815924	return ptr;
102			}
103
104			/* Support routines for hash tables. */
105			void *
106			hash_calloc(size_t n, size_t s, void *u UNUSED)
107			{
108			void *p;
109
110	✗✓	1618962	if ((p = calloc(n, s)) == NULL)
111			enocmem(n, s);
112		809481	return p;
113			}
114
115			void
116			hash_free(void p, void u UNUSED)
117			{
118		997428	free(p);
119		498714	}
120
121			void *
122			element_alloc(size_t s, void *u UNUSED)
123			{
124		56991446	return emalloc(s);
125			}
126
127
128
129			/*
130			* enomem --
131			* die when out of memory.
132			*/
133			void
134			enomem(size_t size)
135			{
136			fprintf(stderr, "make: %s (%zu)\n", strerror(errno), size);
137			exit(2);
138			}
139
140			void
141			enocmem(size_t sz1, size_t sz2)
142			{
143			fprintf(stderr, "make: %s (%zu * %zu)\n", strerror(errno), sz1, sz2);
144			exit(2);
145			}
146			/*
147			* esetenv --
148			* change environment, die on error.
149			*/
150			void
151			esetenv(const char name, const char value)
152			{
153	✓✗	365282	if (setenv(name, value, 1) == 0)
154		182641	return;
155
156			fprintf(stderr, "make: setenv failed (%s)\n", strerror(errno));
157			exit(2);
158			}
159
160
161			/*
162			* enunlink --
163			* Remove a file carefully, avoiding directories.
164			*/
165			int
166			eunlink(const char *file)
167			{
168			struct stat st;
169
170			if (lstat(file, &st) == -1)
171			return -1;
172
173			if (S_ISDIR(st.st_mode)) {
174			errno = EISDIR;
175			return -1;
176			}
177			return unlink(file);
178			}
179
180			void
181			free_hash(struct ohash *h)
182			{
183			void *e;
184			unsigned int i;
185
186			for (e = ohash_first(h, &i); e != NULL; e = ohash_next(h, &i))
187			free(e);
188			ohash_delete(h);
189			}
190