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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 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Miscellaneous utility functions not specifically related to
* the application.
*/
#include <string.h>
#include <sys/types.h>
#include <stdarg.h>
#include <stdio.h>
#include <malloc.h>
#include <ctype.h>
#include "miscutils.h"
/* Return true if strings are equal */
boolean_t
streq(const char *a, const char *b)
{
return (strcmp(a, b) == 0);
}
/* Return true if strings are equal, case-insensitively */
boolean_t
strcaseeq(const char *a, const char *b)
{
return (strcasecmp(a, b) == 0);
}
/* Return true if string a Begins With string b */
boolean_t
strbw(const char *a, const char *b)
{
return (strncmp(a, b, strlen(b)) == 0);
}
/*
* Duplicate up to n bytes of a string. Kind of sort of like
* strdup(strlcpy(s, n)).
*/
char *
strndup(const char *s, int n)
{
int len;
char *p;
len = strnlen(s, n);
p = malloc(len + 1);
if (p == NULL)
return (NULL);
if (len > 0)
(void) memcpy(p, s, len);
p[len] = '\0';
return (p);
}
/*
* Duplicate a block of memory. Combines malloc with memcpy, much as
* strdup combines malloc, strlen, and strcpy.
*/
void *
memdup(const void *buf, size_t sz)
{
void *p;
p = malloc(sz);
if (p == NULL)
return (NULL);
(void) memcpy(p, buf, sz);
return (p);
}
/*
* Dump a block of memory in hex+ascii, for debugging
*/
void
dump(FILE *out, const char *prefix, const void *buf, size_t len)
{
const unsigned char *p = buf;
int i;
for (i = 0; i < len; i += 16) {
int j;
(void) fprintf(out, "%s", prefix);
for (j = 0; j < 16 && i + j < len; j++) {
(void) fprintf(out, "%2.2x ", p[i + j]);
}
for (; j < 16; j++) {
(void) fprintf(out, " ");
}
for (j = 0; j < 16 && i + j < len; j++) {
(void) fprintf(out, "%c",
isprint(p[i + j]) ? p[i + j] : '.');
}
(void) fprintf(out, "\n");
}
}
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