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gnupg/common/util.h
2002-08-09 18:13:41 +00:00

118 lines
3.6 KiB
C

/* util.h - Utility functions for Gnupg
* Copyright (C) 2001, 2002 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of 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.
*
* GnuPG 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 copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifndef GNUPG_COMMON_UTIL_H
#define GNUPG_COMMON_UTIL_H
#include <gcrypt.h> /* we need this for the memory function protos */
#include <time.h> /* we need time_t */
/* to pass hash functions to libksba we need to cast it */
#define HASH_FNC ((void (*)(void *, const void*,size_t))gcry_md_write)
/* get all the stuff from jnlib */
#include "../jnlib/logging.h"
#include "../jnlib/argparse.h"
#include "../jnlib/stringhelp.h"
#include "../jnlib/mischelp.h"
#include "../jnlib/strlist.h"
#include "../jnlib/dotlock.h"
/* handy malloc macros - use only them */
#define xtrymalloc(a) gcry_malloc ((a))
#define xtrycalloc(a,b) gcry_calloc ((a),(b))
#define xtryrealloc(a,b) gcry_realloc ((a),(b))
#define xtrystrdup(a) gcry_strdup ((a))
#define xfree(a) gcry_free ((a))
#define xmalloc(a) gcry_xmalloc ((a))
#define xcalloc(a,b) gcry_xcalloc ((a),(b))
#define xrealloc(a,b) gcry_xrealloc ((a),(b))
#define xstrdup(a) gcry_xstrdup ((a))
#define seterr(a) (GNUPG_ ## a)
/*-- maperror.c --*/
int map_ksba_err (int err);
int map_gcry_err (int err);
int map_kbx_err (int err);
int map_assuan_err (int err);
int map_to_assuan_status (int rc);
/*-- gettime.c --*/
time_t gnupg_get_time (void);
void gnupg_set_time (time_t newtime, int freeze);
int gnupg_faked_time_p (void);
/*-- signal.c --*/
void gnupg_init_signals (int mode, void (*fast_cleanup)(void));
void gnupg_pause_on_sigusr (int which);
void gnupg_block_all_signals (void);
void gnupg_unblock_all_signals (void);
/*-- replacement functions from funcname.c --*/
#if !HAVE_VASPRINTF
#include <stdarg.h>
int vasprintf (char **result, const char *format, va_list *args);
int asprintf (char **result, const char *format, ...);
#endif
#if !HAVE_FOPENCOOKIE
typedef struct
{
ssize_t (*read)(void*,char*,size_t);
ssize_t (*write)(void*,const char*,size_t);
int (*seek)(void*,off_t*,int);
int (*close)(void*);
} _IO_cookie_io_functions_t;
typedef _IO_cookie_io_functions_t cookie_io_functions_t;
FILE *fopencookie (void *cookie, const char *opentype,
cookie_io_functions_t funclist);
#endif /*!HAVE_FOPENCOOKIE*/
/*-- 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 /*GNUPG_COMMON_UTIL_H*/