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/* $OpenBSD: util.h,v 1.5 2002/05/27 20:07:06 deraadt Exp $ */
/*
* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
* All rights reserved.
* Copyright (c) 1998 Per Fogelstrom, Opsycon AB
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed under OpenBSD by
* Per Fogelstrom, Opsycon AB, Sweden.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
*/
#ifndef __DL_UTIL_H__
#define __DL_UTIL_H__
int _dl_write(int, const char *, int);
void *_dl_malloc(const int size);
void _dl_free(void *);
char *_dl_strdup(const char *);
void _dl_printf(const char *fmt, ...);
/*
* The following functions are declared inline so they can
* be used before bootstrap linking has been finished.
*/
static inline void
_dl_wrstderr(const char *s)
{
while (*s) {
_dl_write(2, s, 1);
s++;
}
}
static inline void *
_dl_memset(void *p, const char v, size_t c)
{
char *ip = p;
while (c--)
*ip++ = v;
return(p);
}
static inline int
_dl_strlen(const char *p)
{
const char *s = p;
while (*s != '\0')
s++;
return(s - p);
}
static inline size_t
_dl_strlcpy(char *dst, const char *src, int siz)
{
char *d = dst;
const char *s = src;
size_t n = siz;
/* Copy as many bytes as will fit */
if (n != 0 && --n != 0) {
do {
if ((*d++ = *s++) == 0)
break;
} while (--n != 0);
}
/* Not enough room in dst, add NUL and traverse rest of src */
if (n == 0) {
if (siz != 0)
*d = '\0'; /* NUL-terminate dst */
while (*s++)
;
}
return(s - src - 1); /* count does not include NUL */
}
static inline int
_dl_strncmp(const char *d, const char *s, int c)
{
while (c-- && *d && *d == *s) {
d++;
s++;
}
if (c < 0)
return(0);
return(*d - *s);
}
static inline int
_dl_strcmp(const char *d, const char *s)
{
while (*d && *d == *s) {
d++;
s++;
}
return(*d - *s);
}
static inline const char *
_dl_strchr(const char *p, const int c)
{
while (*p) {
if (*p == c)
return(p);
p++;
}
return(0);
}
#endif /*__DL_UTIL_H__*/
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