fontconfig/fc-arch/fc-arch.c

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/*
* Copyright © 2006 Keith Packard
* Copyright © 2005 Patrick Lam
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include "fcint.h"
#include <ctype.h>
#define ENDIAN_TEST 0x12345678
#define MACHINE_SIGNATURE_SIZE (9*21 + 1)
static char *
FcCacheMachineSignature (void)
{
static char buf[MACHINE_SIGNATURE_SIZE];
int32_t magic = ENDIAN_TEST;
char * m = (char *)&magic;
sprintf (buf, "%2x%2x%2x%2x_"
"%08x_%08x_%08x_%08x_%08x_%08x_%08x_%08x_%08x_%08x_%08x_%08x_"
"%08x_%08x_%08x_%08x_%08x_%08x_%08x_%08x",
m[0], m[1], m[2], m[3],
(unsigned int)sizeof (char),
(unsigned int)sizeof (char *),
(unsigned int)sizeof (int),
(unsigned int)sizeof (intptr_t),
(unsigned int)sizeof (FcPattern),
(unsigned int)sizeof (FcPatternEltPtr),
(unsigned int)sizeof (struct FcPatternElt *),
(unsigned int)sizeof (FcPatternElt),
(unsigned int)sizeof (FcObject),
(unsigned int)sizeof (FcValueListPtr),
(unsigned int)sizeof (FcValue),
(unsigned int)sizeof (FcValueBinding),
(unsigned int)sizeof (struct FcValueList *),
(unsigned int)sizeof (FcCharSet),
(unsigned int)sizeof (FcCharLeaf **),
(unsigned int)sizeof (FcChar16 *),
(unsigned int)sizeof (FcChar16),
(unsigned int)sizeof (FcCharLeaf),
(unsigned int)sizeof (FcChar32),
(unsigned int)sizeof (FcCache));
return buf;
}
int
main (int argc, char **argv)
{
static char line[1024];
char *signature;
int signature_length;
char *space;
char *arch = NULL;
int lineno = 0;
if (argc != 2)
fprintf (stderr, "Usage: %s <architecture>|auto < fcarch.tmpl.h > fcarch.h\n",
argv[0]);
arch = argv[1];
/*
* Scan the input until the marker is found
*/
while (fgets (line, sizeof (line), stdin))
{
lineno++;
if (!strncmp (line, "@@@", 3))
break;
fputs (line, stdout);
}
signature = FcCacheMachineSignature();
signature_length = strlen (signature);
if (strcmp (arch, "auto") == 0)
{
arch = NULL;
/*
* Search for signature
*/
while (fgets (line, sizeof (line), stdin))
{
lineno++;
/*
* skip comments
*/
if (!strncmp (line, "@@@", 3))
continue;
space = line;
while (*space && !isspace (*space))
space++;
if (!space)
{
fprintf (stderr, "%s: malformed input on line %d\n",
argv[0], lineno);
exit (1);
}
*space++ = '\0';
while (isspace (*space))
space++;
if (!strncmp (space, signature, signature_length))
{
arch = line;
break;
}
}
}
if (!arch)
{
fprintf (stderr, "%s: unknown signature \"%s\"\n", argv[0], signature);
fprintf (stderr, "\tPlease update fcarch.tmpl.h and rebuild\n");
exit (1);
}
printf ("#define FC_ARCHITECTURE \"%s\"\n", arch);
fflush (stdout);
exit (ferror (stdout));
}