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util.h
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/* util.h
* Copyright (C) 2001, 2009, 2012 g10 Code GmbH
*
* This file is part of KSBA.
*
* KSBA is free software; you can redistribute it and/or modify
* it under the terms of either
*
* - the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* or
*
* - the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* or both in parallel, as here.
*
* KSBA 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 copies of the GNU General Public License
* and the GNU Lesser General Public License along with this program;
* if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef UTIL_H
#define UTIL_H
#ifdef BUILD_GENTOOLS
#error file may not be be used for build time tools
#endif
#include "visibility.h"
gpg_error_t _ksba_hash_buffer (const char *oid,
const void *buffer, size_t length,
size_t resultsize,
unsigned char *result, size_t *resultlen);
void *_ksba_reallocarray (void *a, size_t oldnmemb, size_t nmemb, size_t size);
void *_ksba_xmalloc (size_t n );
void *_ksba_xcalloc (size_t n, size_t m );
void *_ksba_xrealloc (void *p, size_t n);
char *_ksba_xstrdup (const char *p);
#define xtrymalloc(a) ksba_malloc((a))
#define xtrycalloc(a,b) ksba_calloc((a),(b))
#define xtryrealloc(a,b) ksba_realloc((a),(b))
#define xtrystrdup(a) ksba_strdup((a))
#define xfree(a) ksba_free((a))
#define xmalloc(a) _ksba_xmalloc((a))
#define xcalloc(a,b) _ksba_xcalloc((a),(b))
#define xrealloc(a,b) _ksba_xrealloc((a),(b))
#define xstrdup(a) _ksba_xstrdup((a))
#define DIM(v) (sizeof(v)/sizeof((v)[0]))
#define DIMof(type,member) DIM(((type *)0)->member)
#ifndef STR
# define STR(v) #v
#endif
#ifndef STR2
# define STR2(v) STR(v)
#endif
#define return_if_fail(expr) do { \
if (!(expr)) { \
fprintf (stderr, "%s:%d: assertion `%s' failed\n", \
__FILE__, __LINE__, #expr ); \
return; \
} } while (0)
#define return_null_if_fail(expr) do { \
if (!(expr)) { \
fprintf (stderr, "%s:%d: assertion `%s' failed\n", \
__FILE__, __LINE__, #expr ); \
return NULL; \
} } while (0)
#define return_val_if_fail(expr,val) do { \
if (!(expr)) { \
fprintf (stderr, "%s:%d: assertion `%s' failed\n", \
__FILE__, __LINE__, #expr ); \
return (val); \
} } while (0)
#define never_reached() do { \
fprintf (stderr, "%s:%d: oops; should never get here\n", \
__FILE__, __LINE__ ); \
} while (0)
#ifndef HAVE_STPCPY
char *_ksba_stpcpy (char *a, const char *b);
#define stpcpy(a,b) _ksba_stpcpy ((a), (b))
#endif
int _ksba_ascii_memcasecmp (const void *a_arg, const void *b_arg, size_t n);
#define ascii_memcasecmp(a,b,n) _ksba_ascii_memcasecmp ((a),(b),(n))
/* some macros to replace ctype ones and avoid locale problems */
#define spacep(p) (*(p) == ' ' || *(p) == '\t')
#define digitp(p) (*(p) >= '0' && *(p) <= '9')
#define hexdigitp(a) (digitp (a) \
|| (*(a) >= 'A' && *(a) <= 'F') \
|| (*(a) >= 'a' && *(a) <= 'f'))
/* the atoi macros assume that the buffer has only valid digits */
#define atoi_1(p) (*(p) - '0' )
#define atoi_2(p) ((atoi_1(p) * 10) + atoi_1((p)+1))
#define atoi_4(p) ((atoi_2(p) * 100) + atoi_2((p)+2))
#define xtoi_1(p) (*(p) <= '9'? (*(p)- '0'): \
*(p) <= 'F'? (*(p)-'A'+10):(*(p)-'a'+10))
#define xtoi_2(p) ((xtoi_1(p) * 16) + xtoi_1((p)+1))
#endif /* UTIL_H */

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