[fontconfig.git] / fc-cat / fc-cat.c

/*
 * $RCSId: xc/lib/fontconfig/fc-cache/fc-cache.c,v 1.8tsi Exp $
 *
 * Copyright © 2002 Keith Packard
 *
 * 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 Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD 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.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#else
#ifdef linux
#define HAVE_GETOPT_LONG 1
#endif
#define HAVE_GETOPT 1
#endif

#include <fontconfig/fontconfig.h>
#include <../src/fccache.c>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>

#ifndef HAVE_GETOPT
#define HAVE_GETOPT 0
#endif
#ifndef HAVE_GETOPT_LONG
#define HAVE_GETOPT_LONG 0
#endif

#if HAVE_GETOPT_LONG
#undef  _GNU_SOURCE
#define _GNU_SOURCE
#include <getopt.h>
const struct option longopts[] = {
    {"version", 0, 0, 'V'},
    {"verbose", 0, 0, 'v'},
    {"help", 0, 0, '?'},
    {NULL,0,0,0},
};
#else
#if HAVE_GETOPT
extern char *optarg;
extern int optind, opterr, optopt;
#endif
#endif

/*
 * POSIX has broken stdio so that getc must do thread-safe locking,
 * this is a serious performance problem for applications doing large
 * amounts of IO with getc (as is done here).  If available, use
 * the getc_unlocked varient instead.
 */
 
#if defined(getc_unlocked) || defined(_IO_getc_unlocked)
#define GETC(f) getc_unlocked(f)
#define PUTC(c,f) putc_unlocked(c,f)
#else
#define GETC(f) getc(f)
#define PUTC(c,f) putc(c,f)
#endif

FcBool
FcCachePrintSet (FcFontSet *set, FcStrSet *dirs, char *base_name);

static FcBool
FcCacheWriteChars (FILE *f, const FcChar8 *chars)
{
    FcChar8    c;
    while ((c = *chars++))
    {
	switch (c) {
	case '"':
	case '\\':
	    if (PUTC ('\\', f) == EOF)
		return FcFalse;
	    /* fall through */
	default:
	    if (PUTC (c, f) == EOF)
		return FcFalse;
	}
    }
    return FcTrue;
}

static FcBool
FcCacheWriteUlong (FILE *f, unsigned long t)
{
    int	    pow;
    unsigned long   temp, digit;

    temp = t;
    pow = 1;
    while (temp >= 10)
    {
	temp /= 10;
	pow *= 10;
    }
    temp = t;
    while (pow)
    {
	digit = temp / pow;
	if (PUTC ((char) digit + '0', f) == EOF)
	    return FcFalse;
	temp = temp - pow * digit;
	pow = pow / 10;
    }
    return FcTrue;
}

static FcBool
FcCacheWriteInt (FILE *f, int i)
{
    return FcCacheWriteUlong (f, (unsigned long) i);
}

static FcBool
FcCacheWriteStringOld (FILE *f, const FcChar8 *string)
{

    if (PUTC ('"', f) == EOF)
	return FcFalse;
    if (!FcCacheWriteChars (f, string))
	return FcFalse;
    if (PUTC ('"', f) == EOF)
	return FcFalse;
    return FcTrue;
}

static void
usage (char *program)
{
#if HAVE_GETOPT_LONG
    fprintf (stderr, "usage: %s [-V?] [--version] [--help] <fonts.cache-2>\n",
	     program);
#else
    fprintf (stderr, "usage: %s [-fsvV?] <fonts.cache-2>\n",
	     program);
#endif
    fprintf (stderr, "Reads font information caches in <fonts.cache-2>\n");
    fprintf (stderr, "\n");
#if HAVE_GETOPT_LONG
    fprintf (stderr, "  -V, --version        display font config version and exit\n");
    fprintf (stderr, "  -?, --help           display this help and exit\n");
#else
    fprintf (stderr, "  -V         (version) display font config version and exit\n");
    fprintf (stderr, "  -?         (help)    display this help and exit\n");
#endif
    exit (1);
}

static int
FcCacheFileOpen (char *cache_file, off_t *size)
{
    int fd;
    struct stat file_stat;

    fd = open(cache_file, O_RDONLY | O_BINARY);
    if (fd < 0)
        return -1;

    if (fstat (fd, &file_stat) < 0) {
	close (fd); 
	return -1;
    }
    *size = file_stat.st_size;
    return fd;
}

/*
 * return the path from the directory containing 'cache' to 'file'
 */

static const FcChar8 *
FcFileBaseName (const char *cache, const FcChar8 *file)
{
    const FcChar8   *cache_slash;
    int		    cache_len = strlen (cache);

    if (!strncmp (cache, file, cache_len) && file[cache_len] == '/')
	return file + cache_len + 1;
    return file;
}

FcBool
FcCachePrintSet (FcFontSet *set, FcStrSet *dirs, char *base_name)
{
    FcPattern	    *font;
    FcChar8	    *name, *dir;
    const FcChar8   *file, *base;
    int		    ret;
    int		    n;
    int		    id;
    FcStrList	    *list;

    list = FcStrListCreate (dirs);
    if (!list)
	goto bail2;
    
    while ((dir = FcStrListNext (list)))
    {
	base = FcFileBaseName (base_name, dir);
	if (!FcCacheWriteStringOld (stdout, base))
	    goto bail3;
	if (PUTC (' ', stdout) == EOF)
	    goto bail3;
	if (!FcCacheWriteInt (stdout, 0))
	    goto bail3;
        if (PUTC (' ', stdout) == EOF)
	    goto bail3;
	if (!FcCacheWriteStringOld (stdout, FC_FONT_FILE_DIR))
	    goto bail3;
	if (PUTC ('\n', stdout) == EOF)
	    goto bail3;
    }
    
    for (n = 0; n < set->nfont; n++)
    {
	FcPattern   **fonts = FcFontSetFonts (set);
	FcPattern   *encoded_font = fonts[n];
	FcPattern   *font = FcEncodedOffsetToPtr (set, encoded_font, FcPattern);

	if (FcPatternGetString (font, FC_FILE, 0, (FcChar8 **) &file) != FcResultMatch)
	    goto bail3;
	base = FcFileBaseName (base_name, file);
	if (FcPatternGetInteger (font, FC_INDEX, 0, &id) != FcResultMatch)
	    goto bail3;
	if (!FcCacheWriteStringOld (stdout, base))
	    goto bail3;
	if (PUTC (' ', stdout) == EOF)
	    goto bail3;
	if (!FcCacheWriteInt (stdout, id))
	    goto bail3;
        if (PUTC (' ', stdout) == EOF)
	    goto bail3;
	name = FcNameUnparse (font);
	if (!name)
	    goto bail3;
	ret = FcCacheWriteStringOld (stdout, name);
	FcStrFree (name);
	if (!ret)
	    goto bail3;
	if (PUTC ('\n', stdout) == EOF)
	    goto bail3;
    }
    
    FcStrListDone (list);

    return FcTrue;
    
bail3:
    FcStrListDone (list);
bail2:
    return FcFalse;
}

int
main (int argc, char **argv)
{
    int		i;
    int		ret = 0;
    FcFontSet	*fs;
    FcStrSet    *dirs;
    FcCache	*cache;
    FcConfig	*config;
    int		verbose = 0;
#if HAVE_GETOPT_LONG || HAVE_GETOPT
    int		c;

#if HAVE_GETOPT_LONG
    while ((c = getopt_long (argc, argv, "Vv?", longopts, NULL)) != -1)
#else
    while ((c = getopt (argc, argv, "Vv?")) != -1)
#endif
    {
	switch (c) {
	case 'V':
	    fprintf (stderr, "fontconfig version %d.%d.%d\n", 
		     FC_MAJOR, FC_MINOR, FC_REVISION);
	    exit (0);
	case 'v':
	    verbose++;
	    break;
	default:
	    usage (argv[0]);
	}
    }
    i = optind;
#else
    i = 1;
#endif

    config = FcInitLoadConfig ();
    if (!config)
    {
	fprintf (stderr, "%s: Can't init font config library\n", argv[0]);
	return 1;
    }
    FcConfigSetCurrent (config);
    
    if (i >= argc)
        usage (argv[0]);

    for (; i < argc; i++)
    {
	int	fd;
	int	j;
	off_t	size;
	intptr_t	*cache_dirs;
	
	if (FcFileIsDir ((const FcChar8 *)argv[i]))
	    fd = FcDirCacheOpen (config, (const FcChar8 *) argv[i], &size);
	else
	    fd = FcCacheFileOpen (argv[i], &size);
	if (fd < 0)
	{
	    perror (argv[i]);
	    ret++;
	    continue;
	}
	
	cache = FcDirCacheMap (fd, size);
	close (fd);
	if (!cache)
	{
	    fprintf (stderr, "%s: cannot map cache\n", argv[i]);
	    ret++;
	    continue;
	}
	dirs = FcStrSetCreate ();
	fs = FcCacheSet (cache);
	cache_dirs = FcCacheDirs (cache);
	for (j = 0; j < cache->dirs_count; j++) 
	    FcStrSetAdd (dirs, FcOffsetToPtr (cache_dirs,
					      cache_dirs[j],
					      FcChar8));

	if (verbose)
	    printf ("Name: %s\nDirectory: %s\n", argv[i], FcCacheDir(cache));
        FcCachePrintSet (fs, dirs, FcCacheDir (cache));

	FcStrSetDestroy (dirs);

	FcDirCacheUnmap (cache);
    }

    return 0;
}
Commit	Line	Data
f28f090d PL	1	/*
	2	* $RCSId: xc/lib/fontconfig/fc-cache/fc-cache.c,v 1.8tsi Exp $
	3	*
	4	* Copyright © 2002 Keith Packard
	5	*
	6	* Permission to use, copy, modify, distribute, and sell this software and its
	7	* documentation for any purpose is hereby granted without fee, provided that
	8	* the above copyright notice appear in all copies and that both that
	9	* copyright notice and this permission notice appear in supporting
	10	* documentation, and that the name of Keith Packard not be used in
	11	* advertising or publicity pertaining to distribution of the software without
	12	* specific, written prior permission. Keith Packard makes no
	13	* representations about the suitability of this software for any purpose. It
	14	* is provided "as is" without express or implied warranty.
	15	*
	16	* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
	17	* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
	18	* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
	19	* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
	20	* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
	21	* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
	22	* PERFORMANCE OF THIS SOFTWARE.
	23	*/
	24
f28f090d PL	25	#ifdef HAVE_CONFIG_H
	26	#include <config.h>
	27	#else
	28	#ifdef linux
	29	#define HAVE_GETOPT_LONG 1
	30	#endif
	31	#define HAVE_GETOPT 1
	32	#endif
	33
f045376c PL	34	#include <fontconfig/fontconfig.h>
	35	#include <../src/fccache.c>
	36	#include <stdio.h>
	37	#include <stdlib.h>
	38	#include <unistd.h>
	39	#include <sys/types.h>
	40	#include <sys/stat.h>
	41	#include <errno.h>
	42
f28f090d PL	43	#ifndef HAVE_GETOPT
	44	#define HAVE_GETOPT 0
	45	#endif
	46	#ifndef HAVE_GETOPT_LONG
	47	#define HAVE_GETOPT_LONG 0
	48	#endif
	49
	50	#if HAVE_GETOPT_LONG
	51	#undef _GNU_SOURCE
	52	#define _GNU_SOURCE
	53	#include <getopt.h>
	54	const struct option longopts[] = {
	55	{"version", 0, 0, 'V'},
c0288648	56	{"verbose", 0, 0, 'v'},
f28f090d PL	57	{"help", 0, 0, '?'},
	58	{NULL,0,0,0},
	59	};
	60	#else
	61	#if HAVE_GETOPT
	62	extern char *optarg;
	63	extern int optind, opterr, optopt;
	64	#endif
	65	#endif
	66
	67	/*
	68	* POSIX has broken stdio so that getc must do thread-safe locking,
	69	* this is a serious performance problem for applications doing large
	70	* amounts of IO with getc (as is done here). If available, use
	71	* the getc_unlocked varient instead.
	72	*/
	73
	74	#if defined(getc_unlocked) \|\| defined(_IO_getc_unlocked)
	75	#define GETC(f) getc_unlocked(f)
	76	#define PUTC(c,f) putc_unlocked(c,f)
	77	#else
	78	#define GETC(f) getc(f)
	79	#define PUTC(c,f) putc(c,f)
	80	#endif
	81
982b5982	82	FcBool
c60ec7cc	83	FcCachePrintSet (FcFontSet set, FcStrSet dirs, char *base_name);
982b5982	84
f28f090d PL	85	static FcBool
	86	FcCacheWriteChars (FILE f, const FcChar8 chars)
	87	{
	88	FcChar8 c;
	89	while ((c = *chars++))
	90	{
	91	switch (c) {
	92	case '"':
	93	case '\\':
	94	if (PUTC ('\\', f) == EOF)
	95	return FcFalse;
	96	/* fall through */
	97	default:
	98	if (PUTC (c, f) == EOF)
	99	return FcFalse;
	100	}
	101	}
	102	return FcTrue;
	103	}
	104
	105	static FcBool
	106	FcCacheWriteUlong (FILE *f, unsigned long t)
	107	{
	108	int pow;
	109	unsigned long temp, digit;
	110
	111	temp = t;
	112	pow = 1;
	113	while (temp >= 10)
	114	{
	115	temp /= 10;
	116	pow *= 10;
	117	}
	118	temp = t;
	119	while (pow)
	120	{
	121	digit = temp / pow;
	122	if (PUTC ((char) digit + '0', f) == EOF)
	123	return FcFalse;
	124	temp = temp - pow * digit;
	125	pow = pow / 10;
	126	}
	127	return FcTrue;
	128	}
	129
	130	static FcBool
	131	FcCacheWriteInt (FILE *f, int i)
	132	{
	133	return FcCacheWriteUlong (f, (unsigned long) i);
	134	}
	135
	136	static FcBool
	137	FcCacheWriteStringOld (FILE f, const FcChar8 string)
	138	{
	139
	140	if (PUTC ('"', f) == EOF)
	141	return FcFalse;
	142	if (!FcCacheWriteChars (f, string))
	143	return FcFalse;
	144	if (PUTC ('"', f) == EOF)
	145	return FcFalse;
	146	return FcTrue;
	147	}
	148
149	static void
150	usage (char *program)
151	{
152	#if HAVE_GETOPT_LONG
153	fprintf (stderr, "usage: %s [-V?] [--version] [--help] <fonts.cache-2>\n",
154	program);
155	#else
156	fprintf (stderr, "usage: %s [-fsvV?] <fonts.cache-2>\n",
157	program);
158	#endif
159	fprintf (stderr, "Reads font information caches in <fonts.cache-2>\n");
160	fprintf (stderr, "\n");
161	#if HAVE_GETOPT_LONG
162	fprintf (stderr, " -V, --version display font config version and exit\n");
163	fprintf (stderr, " -?, --help display this help and exit\n");
164	#else
165	fprintf (stderr, " -V (version) display font config version and exit\n");
166	fprintf (stderr, " -? (help) display this help and exit\n");
167	#endif
168	exit (1);
169	}
170
c0288648 KP	171	static int
c0288648 KP	172	FcCacheFileOpen (char cache_file, off_t size)
f28f090d PL	173	{
f28f090d PL	174	int fd;
c0288648	175	struct stat file_stat;
f28f090d	176
c0288648 KP	177	fd = open(cache_file, O_RDONLY \| O_BINARY);
	178	if (fd < 0)
	179	return -1;
f28f090d	180
c0288648 KP	181	if (fstat (fd, &file_stat) < 0) {
	182	close (fd);
	183	return -1;
	184	}
	185	*size = file_stat.st_size;
	186	return fd;
f28f090d PL	187	}
	188
	189	/*
	190	* return the path from the directory containing 'cache' to 'file'
	191	*/
	192
	193	static const FcChar8 *
	194	FcFileBaseName (const char cache, const FcChar8 file)
	195	{
	196	const FcChar8 *cache_slash;
c0288648	197	int cache_len = strlen (cache);
f28f090d	198
c0288648 KP	199	if (!strncmp (cache, file, cache_len) && file[cache_len] == '/')
c0288648 KP	200	return file + cache_len + 1;
f28f090d PL	201	return file;
	202	}
	203
	204	FcBool
c60ec7cc	205	FcCachePrintSet (FcFontSet set, FcStrSet dirs, char *base_name)
f28f090d PL	206	{
	207	FcPattern *font;
	208	FcChar8 name, dir;
	209	const FcChar8 file, base;
d2f45978	210	int ret;
f28f090d PL	211	int n;
f28f090d PL	212	int id;
f28f090d PL	213	FcStrList *list;
	214
	215	list = FcStrListCreate (dirs);
	216	if (!list)
	217	goto bail2;
	218
	219	while ((dir = FcStrListNext (list)))
	220	{
c60ec7cc	221	base = FcFileBaseName (base_name, dir);
f28f090d PL	222	if (!FcCacheWriteStringOld (stdout, base))
	223	goto bail3;
	224	if (PUTC (' ', stdout) == EOF)
	225	goto bail3;
	226	if (!FcCacheWriteInt (stdout, 0))
	227	goto bail3;
	228	if (PUTC (' ', stdout) == EOF)
	229	goto bail3;
	230	if (!FcCacheWriteStringOld (stdout, FC_FONT_FILE_DIR))
	231	goto bail3;
	232	if (PUTC ('\n', stdout) == EOF)
	233	goto bail3;
	234	}
	235
	236	for (n = 0; n < set->nfont; n++)
	237	{
c0288648 KP	238	FcPattern **fonts = FcFontSetFonts (set);
	239	FcPattern *encoded_font = fonts[n];
	240	FcPattern *font = FcEncodedOffsetToPtr (set, encoded_font, FcPattern);
	241
f28f090d PL	242	if (FcPatternGetString (font, FC_FILE, 0, (FcChar8 **) &file) != FcResultMatch)
f28f090d PL	243	goto bail3;
c60ec7cc	244	base = FcFileBaseName (base_name, file);
f28f090d PL	245	if (FcPatternGetInteger (font, FC_INDEX, 0, &id) != FcResultMatch)
f28f090d PL	246	goto bail3;
f28f090d PL	247	if (!FcCacheWriteStringOld (stdout, base))
	248	goto bail3;
	249	if (PUTC (' ', stdout) == EOF)
	250	goto bail3;
	251	if (!FcCacheWriteInt (stdout, id))
	252	goto bail3;
	253	if (PUTC (' ', stdout) == EOF)
	254	goto bail3;
	255	name = FcNameUnparse (font);
	256	if (!name)
	257	goto bail3;
	258	ret = FcCacheWriteStringOld (stdout, name);
	259	FcStrFree (name);
	260	if (!ret)
	261	goto bail3;
	262	if (PUTC ('\n', stdout) == EOF)
	263	goto bail3;
	264	}
	265
	266	FcStrListDone (list);
	267
	268	return FcTrue;
	269
	270	bail3:
	271	FcStrListDone (list);
	272	bail2:
f28f090d PL	273	return FcFalse;
	274	}
	275
	276	int
	277	main (int argc, char **argv)
	278	{
	279	int i;
c0288648 KP	280	int ret = 0;
	281	FcFontSet *fs;
	282	FcStrSet *dirs;
	283	FcCache *cache;
	284	FcConfig *config;
	285	int verbose = 0;
f28f090d PL	286	#if HAVE_GETOPT_LONG \|\| HAVE_GETOPT
f28f090d PL	287	int c;
f28f090d PL	288
f28f090d PL	289	#if HAVE_GETOPT_LONG
c0288648	290	while ((c = getopt_long (argc, argv, "Vv?", longopts, NULL)) != -1)
f28f090d	291	#else
c0288648	292	while ((c = getopt (argc, argv, "Vv?")) != -1)
f28f090d PL	293	#endif
	294	{
	295	switch (c) {
	296	case 'V':
	297	fprintf (stderr, "fontconfig version %d.%d.%d\n",
	298	FC_MAJOR, FC_MINOR, FC_REVISION);
	299	exit (0);
c0288648 KP	300	case 'v':
	301	verbose++;
	302	break;
f28f090d PL	303	default:
	304	usage (argv[0]);
	305	}
	306	}
	307	i = optind;
	308	#else
	309	i = 1;
	310	#endif
	311
9769b43d PL	312	config = FcInitLoadConfig ();
	313	if (!config)
	314	{
	315	fprintf (stderr, "%s: Can't init font config library\n", argv[0]);
	316	return 1;
	317	}
	318	FcConfigSetCurrent (config);
	319
8f2a8078 PL	320	if (i >= argc)
	321	usage (argv[0]);
	322
c0288648	323	for (; i < argc; i++)
6059daed	324	{
c0288648 KP	325	int fd;
	326	int j;
	327	off_t size;
	328	intptr_t *cache_dirs;
	329
	330	if (FcFileIsDir ((const FcChar8 *)argv[i]))
	331	fd = FcDirCacheOpen (config, (const FcChar8 *) argv[i], &size);
	332	else
	333	fd = FcCacheFileOpen (argv[i], &size);
	334	if (fd < 0)
	335	{
	336	perror (argv[i]);
	337	ret++;
	338	continue;
	339	}
	340
	341	cache = FcDirCacheMap (fd, size);
	342	close (fd);
	343	if (!cache)
	344	{
	345	fprintf (stderr, "%s: cannot map cache\n", argv[i]);
	346	ret++;
	347	continue;
	348	}
	349	dirs = FcStrSetCreate ();
	350	fs = FcCacheSet (cache);
	351	cache_dirs = FcCacheDirs (cache);
	352	for (j = 0; j < cache->dirs_count; j++)
	353	FcStrSetAdd (dirs, FcOffsetToPtr (cache_dirs,
	354	cache_dirs[j],
	355	FcChar8));
	356
	357	if (verbose)
	358	printf ("Name: %s\nDirectory: %s\n", argv[i], FcCacheDir(cache));
	359	FcCachePrintSet (fs, dirs, FcCacheDir (cache));
f28f090d	360
c0288648 KP	361	FcStrSetDestroy (dirs);
	362
	363	FcDirCacheUnmap (cache);
	364	}
f28f090d PL	365
	366	return 0;
	367	}