[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 "../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;
}

FcCache *
FcCacheFileMap (const FcChar8 *file)
{
    FcCache *cache;
    int	    fd;
    struct stat file_stat;

    fd = open (file, O_RDONLY | O_BINARY);
    if (fd < 0)
	return NULL;
    if (fstat (fd, &file_stat) < 0) {
	close (fd);
	return NULL;
    }
    if (FcCacheLoad (fd, file_stat.st_size, &cache)) {
	close (fd);
	return cache;
    }
    close (fd);
    return NULL;
}

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	j;
	off_t	size;
	intptr_t	*cache_dirs;
	
	if (FcFileIsDir ((const FcChar8 *)argv[i]))
	    cache = FcDirCacheMap ((const FcChar8 *) argv[i], config);
	else
	    cache = FcCacheFileMap (argv[i]);
	if (!cache)
	{
	    perror (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
d8ab9e6c	34	#include "../src/fccache.c"
f045376c PL	35	#include <stdio.h>
	36	#include <stdlib.h>
	37	#include <unistd.h>
	38	#include <sys/types.h>
	39	#include <sys/stat.h>
	40	#include <errno.h>
	41
f28f090d PL	42	#ifndef HAVE_GETOPT
	43	#define HAVE_GETOPT 0
	44	#endif
	45	#ifndef HAVE_GETOPT_LONG
	46	#define HAVE_GETOPT_LONG 0
	47	#endif
	48
	49	#if HAVE_GETOPT_LONG
	50	#undef _GNU_SOURCE
	51	#define _GNU_SOURCE
	52	#include <getopt.h>
	53	const struct option longopts[] = {
	54	{"version", 0, 0, 'V'},
c0288648	55	{"verbose", 0, 0, 'v'},
f28f090d PL	56	{"help", 0, 0, '?'},
	57	{NULL,0,0,0},
	58	};
	59	#else
	60	#if HAVE_GETOPT
	61	extern char *optarg;
	62	extern int optind, opterr, optopt;
	63	#endif
	64	#endif
	65
	66	/*
	67	* POSIX has broken stdio so that getc must do thread-safe locking,
	68	* this is a serious performance problem for applications doing large
	69	* amounts of IO with getc (as is done here). If available, use
	70	* the getc_unlocked varient instead.
	71	*/
	72
	73	#if defined(getc_unlocked) \|\| defined(_IO_getc_unlocked)
	74	#define GETC(f) getc_unlocked(f)
	75	#define PUTC(c,f) putc_unlocked(c,f)
	76	#else
	77	#define GETC(f) getc(f)
	78	#define PUTC(c,f) putc(c,f)
	79	#endif
	80
982b5982	81	FcBool
c60ec7cc	82	FcCachePrintSet (FcFontSet set, FcStrSet dirs, char *base_name);
982b5982	83
f28f090d PL	84	static FcBool
	85	FcCacheWriteChars (FILE f, const FcChar8 chars)
	86	{
	87	FcChar8 c;
	88	while ((c = *chars++))
	89	{
	90	switch (c) {
	91	case '"':
	92	case '\\':
	93	if (PUTC ('\\', f) == EOF)
	94	return FcFalse;
	95	/* fall through */
	96	default:
	97	if (PUTC (c, f) == EOF)
	98	return FcFalse;
	99	}
	100	}
	101	return FcTrue;
	102	}
	103
	104	static FcBool
	105	FcCacheWriteUlong (FILE *f, unsigned long t)
	106	{
	107	int pow;
	108	unsigned long temp, digit;
	109
	110	temp = t;
	111	pow = 1;
	112	while (temp >= 10)
	113	{
	114	temp /= 10;
	115	pow *= 10;
	116	}
	117	temp = t;
	118	while (pow)
	119	{
	120	digit = temp / pow;
	121	if (PUTC ((char) digit + '0', f) == EOF)
	122	return FcFalse;
	123	temp = temp - pow * digit;
	124	pow = pow / 10;
	125	}
	126	return FcTrue;
	127	}
	128
	129	static FcBool
	130	FcCacheWriteInt (FILE *f, int i)
	131	{
	132	return FcCacheWriteUlong (f, (unsigned long) i);
	133	}
	134
	135	static FcBool
	136	FcCacheWriteStringOld (FILE f, const FcChar8 string)
	137	{
	138
	139	if (PUTC ('"', f) == EOF)
	140	return FcFalse;
	141	if (!FcCacheWriteChars (f, string))
	142	return FcFalse;
	143	if (PUTC ('"', f) == EOF)
	144	return FcFalse;
	145	return FcTrue;
	146	}
	147
148	static void
149	usage (char *program)
150	{
151	#if HAVE_GETOPT_LONG
152	fprintf (stderr, "usage: %s [-V?] [--version] [--help] <fonts.cache-2>\n",
153	program);
154	#else
155	fprintf (stderr, "usage: %s [-fsvV?] <fonts.cache-2>\n",
156	program);
157	#endif
158	fprintf (stderr, "Reads font information caches in <fonts.cache-2>\n");
159	fprintf (stderr, "\n");
160	#if HAVE_GETOPT_LONG
161	fprintf (stderr, " -V, --version display font config version and exit\n");
162	fprintf (stderr, " -?, --help display this help and exit\n");
163	#else
164	fprintf (stderr, " -V (version) display font config version and exit\n");
165	fprintf (stderr, " -? (help) display this help and exit\n");
166	#endif
167	exit (1);
168	}
169
c0288648 KP	170	static int
c0288648 KP	171	FcCacheFileOpen (char cache_file, off_t size)
f28f090d PL	172	{
f28f090d PL	173	int fd;
c0288648	174	struct stat file_stat;
f28f090d	175
c0288648 KP	176	fd = open(cache_file, O_RDONLY \| O_BINARY);
	177	if (fd < 0)
	178	return -1;
f28f090d	179
c0288648 KP	180	if (fstat (fd, &file_stat) < 0) {
	181	close (fd);
	182	return -1;
	183	}
	184	*size = file_stat.st_size;
	185	return fd;
f28f090d PL	186	}
	187
	188	/*
	189	* return the path from the directory containing 'cache' to 'file'
	190	*/
	191
	192	static const FcChar8 *
	193	FcFileBaseName (const char cache, const FcChar8 file)
	194	{
	195	const FcChar8 *cache_slash;
c0288648	196	int cache_len = strlen (cache);
f28f090d	197
c0288648 KP	198	if (!strncmp (cache, file, cache_len) && file[cache_len] == '/')
c0288648 KP	199	return file + cache_len + 1;
f28f090d PL	200	return file;
	201	}
	202
	203	FcBool
c60ec7cc	204	FcCachePrintSet (FcFontSet set, FcStrSet dirs, char *base_name)
f28f090d PL	205	{
	206	FcPattern *font;
	207	FcChar8 name, dir;
	208	const FcChar8 file, base;
d2f45978	209	int ret;
f28f090d PL	210	int n;
f28f090d PL	211	int id;
f28f090d PL	212	FcStrList *list;
	213
	214	list = FcStrListCreate (dirs);
	215	if (!list)
	216	goto bail2;
	217
	218	while ((dir = FcStrListNext (list)))
	219	{
c60ec7cc	220	base = FcFileBaseName (base_name, dir);
f28f090d PL	221	if (!FcCacheWriteStringOld (stdout, base))
	222	goto bail3;
	223	if (PUTC (' ', stdout) == EOF)
	224	goto bail3;
	225	if (!FcCacheWriteInt (stdout, 0))
	226	goto bail3;
	227	if (PUTC (' ', stdout) == EOF)
	228	goto bail3;
	229	if (!FcCacheWriteStringOld (stdout, FC_FONT_FILE_DIR))
	230	goto bail3;
	231	if (PUTC ('\n', stdout) == EOF)
	232	goto bail3;
	233	}
	234
	235	for (n = 0; n < set->nfont; n++)
	236	{
c0288648 KP	237	FcPattern **fonts = FcFontSetFonts (set);
	238	FcPattern *encoded_font = fonts[n];
	239	FcPattern *font = FcEncodedOffsetToPtr (set, encoded_font, FcPattern);
	240
f28f090d PL	241	if (FcPatternGetString (font, FC_FILE, 0, (FcChar8 **) &file) != FcResultMatch)
f28f090d PL	242	goto bail3;
c60ec7cc	243	base = FcFileBaseName (base_name, file);
f28f090d PL	244	if (FcPatternGetInteger (font, FC_INDEX, 0, &id) != FcResultMatch)
f28f090d PL	245	goto bail3;
f28f090d PL	246	if (!FcCacheWriteStringOld (stdout, base))
	247	goto bail3;
	248	if (PUTC (' ', stdout) == EOF)
	249	goto bail3;
	250	if (!FcCacheWriteInt (stdout, id))
	251	goto bail3;
	252	if (PUTC (' ', stdout) == EOF)
	253	goto bail3;
	254	name = FcNameUnparse (font);
	255	if (!name)
	256	goto bail3;
	257	ret = FcCacheWriteStringOld (stdout, name);
	258	FcStrFree (name);
	259	if (!ret)
	260	goto bail3;
	261	if (PUTC ('\n', stdout) == EOF)
	262	goto bail3;
	263	}
	264
	265	FcStrListDone (list);
	266
	267	return FcTrue;
	268
	269	bail3:
	270	FcStrListDone (list);
	271	bail2:
f28f090d PL	272	return FcFalse;
	273	}
	274
76abb77f KP	275	FcCache *
	276	FcCacheFileMap (const FcChar8 *file)
	277	{
	278	FcCache *cache;
	279	int fd;
	280	struct stat file_stat;
	281
	282	fd = open (file, O_RDONLY \| O_BINARY);
	283	if (fd < 0)
	284	return NULL;
	285	if (fstat (fd, &file_stat) < 0) {
	286	close (fd);
	287	return NULL;
	288	}
	289	if (FcCacheLoad (fd, file_stat.st_size, &cache)) {
	290	close (fd);
	291	return cache;
	292	}
	293	close (fd);
	294	return NULL;
	295	}
	296
f28f090d PL	297	int
	298	main (int argc, char **argv)
	299	{
	300	int i;
c0288648 KP	301	int ret = 0;
	302	FcFontSet *fs;
	303	FcStrSet *dirs;
	304	FcCache *cache;
	305	FcConfig *config;
	306	int verbose = 0;
f28f090d PL	307	#if HAVE_GETOPT_LONG \|\| HAVE_GETOPT
f28f090d PL	308	int c;
f28f090d PL	309
f28f090d PL	310	#if HAVE_GETOPT_LONG
c0288648	311	while ((c = getopt_long (argc, argv, "Vv?", longopts, NULL)) != -1)
f28f090d	312	#else
c0288648	313	while ((c = getopt (argc, argv, "Vv?")) != -1)
f28f090d PL	314	#endif
	315	{
	316	switch (c) {
	317	case 'V':
	318	fprintf (stderr, "fontconfig version %d.%d.%d\n",
	319	FC_MAJOR, FC_MINOR, FC_REVISION);
	320	exit (0);
c0288648 KP	321	case 'v':
	322	verbose++;
	323	break;
f28f090d PL	324	default:
	325	usage (argv[0]);
	326	}
	327	}
	328	i = optind;
	329	#else
	330	i = 1;
	331	#endif
	332
9769b43d PL	333	config = FcInitLoadConfig ();
	334	if (!config)
	335	{
	336	fprintf (stderr, "%s: Can't init font config library\n", argv[0]);
	337	return 1;
	338	}
	339	FcConfigSetCurrent (config);
	340
8f2a8078 PL	341	if (i >= argc)
	342	usage (argv[0]);
	343
c0288648	344	for (; i < argc; i++)
6059daed	345	{
c0288648 KP	346	int j;
	347	off_t size;
	348	intptr_t *cache_dirs;
	349
	350	if (FcFileIsDir ((const FcChar8 *)argv[i]))
76abb77f	351	cache = FcDirCacheMap ((const FcChar8 *) argv[i], config);
c0288648	352	else
76abb77f KP	353	cache = FcCacheFileMap (argv[i]);
76abb77f KP	354	if (!cache)
c0288648 KP	355	{
	356	perror (argv[i]);
	357	ret++;
	358	continue;
	359	}
	360
c0288648 KP	361	dirs = FcStrSetCreate ();
	362	fs = FcCacheSet (cache);
	363	cache_dirs = FcCacheDirs (cache);
	364	for (j = 0; j < cache->dirs_count; j++)
	365	FcStrSetAdd (dirs, FcOffsetToPtr (cache_dirs,
	366	cache_dirs[j],
	367	FcChar8));
	368
	369	if (verbose)
	370	printf ("Name: %s\nDirectory: %s\n", argv[i], FcCacheDir(cache));
	371	FcCachePrintSet (fs, dirs, FcCacheDir (cache));
f28f090d	372
c0288648 KP	373	FcStrSetDestroy (dirs);
	374
	375	FcDirCacheUnmap (cache);
	376	}
f28f090d PL	377
	378	return 0;
	379	}