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common.h
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/* common.h - Common functions for the tests.
* Copyright (C) 2006 Free Software Foundation, Inc.
*
* This file is part of Assuan.
*
* Assuan is free software; you can redistribute it and/or modify it
* under the terms of 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.
*
* Assuan 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <stdarg.h>
#if __GNUC__ >= 4
# define MY_GCC_A_SENTINEL(a) __attribute__ ((sentinel(a)))
#else
# define MY_GCC_A_SENTINEL(a)
#endif
#ifdef HAVE_W32CE_SYSTEM
#define getpid() GetCurrentProcessId ()
#define getenv(a) (NULL)
#endif
#if HAVE_W32_SYSTEM
#define SOCKET2HANDLE(s) ((void *)(s))
#define HANDLE2SOCKET(h) ((unsigned int)(h))
CRITICAL_SECTION _log_critsect;
#define _log_enter() do { EnterCriticalSection (&_log_critsect); } while (0)
#define _log_leave() do { LeaveCriticalSection (&_log_critsect); } while (0)
#else
#define SOCKET2HANDLE(s) (s)
#define HANDLE2SOCKET(h) (h)
#define _log_enter() do { } while (0)
#define _log_leave() do { } while (0)
#endif
#define DIM(v) (sizeof(v)/sizeof((v)[0]))
#define DIMof(type,member) DIM(((type *)0)->member)
char *xstrconcat (const char *s1, ...) MY_GCC_A_SENTINEL(0);
static const char *log_prefix;
static int errorcount;
static int verbose;
static int debug;
void *
xmalloc (size_t n)
{
char *p = malloc (n);
if (!p)
{
if (log_prefix)
fprintf (stderr, "%s[%u]: ", log_prefix, (unsigned int)getpid ());
fprintf (stderr, "out of core\n");
exit (1);
}
return p;
}
void *
xcalloc (size_t n, size_t m)
{
char *p = calloc (n, m);
if (!p)
{
_log_enter ();
if (log_prefix)
fprintf (stderr, "%s[%u]: ", log_prefix, (unsigned int)getpid ());
fprintf (stderr, "out of core\n");
_log_leave ();
exit (1);
}
return p;
}
void
xfree (void *a)
{
if (a)
free (a);
}
void *
xstrdup (const char *string)
{
char *p = xmalloc (strlen (string) + 1);
strcpy (p, string);
return p;
}
void
log_set_prefix (const char *s)
{
#ifdef HAVE_W32_SYSTEM
InitializeCriticalSection (&_log_critsect);
log_prefix = strrchr (s, '\\');
#else
log_prefix = strrchr (s, '/');
#endif
if (log_prefix)
log_prefix++;
else
log_prefix = s;
}
const char *
log_get_prefix (void)
{
return log_prefix? log_prefix:"";
}
void
log_info (const char *format, ...)
{
va_list arg_ptr ;
if (!verbose)
return;
va_start (arg_ptr, format) ;
_log_enter ();
if (log_prefix)
fprintf (stderr, "%s[%u]: ", log_prefix, (unsigned int)getpid ());
vfprintf (stderr, format, arg_ptr );
_log_leave ();
va_end (arg_ptr);
}
void
log_error (const char *format, ...)
{
va_list arg_ptr ;
va_start (arg_ptr, format) ;
_log_enter ();
if (log_prefix)
fprintf (stderr, "%s[%u]: ", log_prefix, (unsigned int)getpid ());
vfprintf (stderr, format, arg_ptr );
_log_leave ();
va_end (arg_ptr);
errorcount++;
}
void
log_fatal (const char *format, ...)
{
va_list arg_ptr ;
va_start (arg_ptr, format) ;
_log_enter ();
if (log_prefix)
fprintf (stderr, "%s[%u]: ", log_prefix, (unsigned int)getpid ());
vfprintf (stderr, format, arg_ptr );
_log_leave ();
va_end (arg_ptr);
exit (2);
}
void
log_printhex (const char *text, const void *buffer, size_t length)
{
const unsigned char *s;
_log_enter ();
if (log_prefix)
fprintf (stderr, "%s[%u]: ", log_prefix, (unsigned int)getpid ());
fputs (text, stderr);
for (s=buffer; length; s++, length--)
fprintf (stderr, "%02X", *s);
putc ('\n', stderr);
_log_leave ();
}
/* Prepend FNAME with the srcdir environment variable's value and
return an allocated filename. */
char *
prepend_srcdir (const char *fname)
{
static const char *srcdir;
char *result;
if (!srcdir && !(srcdir = getenv ("srcdir")))
srcdir = ".";
result = xmalloc (strlen (srcdir) + 1 + strlen (fname) + 1);
strcpy (result, srcdir);
strcat (result, "/");
strcat (result, fname);
return result;
}
#ifndef HAVE_STPCPY
#undef __stpcpy
#undef stpcpy
#ifndef weak_alias
# define __stpcpy stpcpy
#endif
char *
__stpcpy (char *a,const char *b)
{
while (*b)
*a++ = *b++;
*a = 0;
return (char*)a;
}
#ifdef libc_hidden_def
libc_hidden_def (__stpcpy)
#endif
#ifdef weak_alias
weak_alias (__stpcpy, stpcpy)
#endif
#ifdef libc_hidden_builtin_def
libc_hidden_builtin_def (stpcpy)
#endif
#endif
static char *
do_strconcat (const char *s1, va_list arg_ptr)
{
const char *argv[48];
size_t argc;
size_t needed;
char *buffer, *p;
argc = 0;
argv[argc++] = s1;
needed = strlen (s1);
while (((argv[argc] = va_arg (arg_ptr, const char *))))
{
needed += strlen (argv[argc]);
if (argc >= DIM (argv)-1)
{
fprintf (stderr, "too many args in strconcat\n");
exit (1);
}
argc++;
}
needed++;
buffer = xmalloc (needed);
if (buffer)
{
for (p = buffer, argc=0; argv[argc]; argc++)
p = stpcpy (p, argv[argc]);
}
return buffer;
}
/* Concatenate the string S1 with all the following strings up to a
NULL. Returns a malloced buffer or dies on malloc error. */
char *
xstrconcat (const char *s1, ...)
{
va_list arg_ptr;
char *result;
if (!s1)
result = xstrdup ("");
else
{
va_start (arg_ptr, s1);
result = do_strconcat (s1, arg_ptr);
va_end (arg_ptr);
}
return result;
}

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