/src/php-src/ext/standard/iptc.c

Source (jump to first uncovered line)
/*
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Author: Thies C. Arntzen <thies@thieso.net>                          |
   +----------------------------------------------------------------------+
 */

/*
 * Functions to parse & compse IPTC data.
 * PhotoShop >= 3.0 can read and write textual data to JPEG files.
 * ... more to come .....
 *
 * i know, parts of this is now duplicated in image.c
 * but in this case i think it's okay!
 */

/*
 * TODO:
 *  - add IPTC translation table
 */

#include "php.h"
#include "ext/standard/head.h"

#include <sys/stat.h>

#include <stdint.h>
#ifndef PHP_WIN32
# include <inttypes.h>
#endif

/* some defines for the different JPEG block types */
#define M_SOF0  0xC0            /* Start Of Frame N */
#define M_SOF1  0xC1            /* N indicates which compression process */
#define M_SOF2  0xC2            /* Only SOF0-SOF2 are now in common use */
#define M_SOF3  0xC3
#define M_SOF5  0xC5            /* NB: codes C4 and CC are NOT SOF markers */
#define M_SOF6  0xC6
#define M_SOF7  0xC7
#define M_SOF9  0xC9
#define M_SOF10 0xCA
#define M_SOF11 0xCB
#define M_SOF13 0xCD
#define M_SOF14 0xCE
#define M_SOF15 0xCF
#define M_SOI   0xD8
#define M_EOI   0xD9            /* End Of Image (end of datastream) */
#define M_SOS   0xDA            /* Start Of Scan (begins compressed data) */
#define M_APP0  0xe0
#define M_APP1  0xe1
#define M_APP2  0xe2
#define M_APP3  0xe3
#define M_APP4  0xe4
#define M_APP5  0xe5
#define M_APP6  0xe6
#define M_APP7  0xe7
#define M_APP8  0xe8
#define M_APP9  0xe9
#define M_APP10 0xea
#define M_APP11 0xeb
#define M_APP12 0xec
#define M_APP13 0xed
#define M_APP14 0xee
#define M_APP15 0xef

/* {{{ php_iptc_put1
 */
static int php_iptc_put1(FILE *fp, int spool, unsigned char c, unsigned char **spoolbuf)
{
  if (spool > 0)
    PUTC(c);

  if (spoolbuf) *(*spoolbuf)++ = c;

    return c;
}
/* }}} */

/* {{{ php_iptc_get1
 */
static int php_iptc_get1(FILE *fp, int spool, unsigned char **spoolbuf)
{
  int c;
  char cc;

  c = getc(fp);

  if (c == EOF) return EOF;

  if (spool > 0) {
    cc = c;
    PUTC(cc);
  }

  if (spoolbuf) *(*spoolbuf)++ = c;

  return c;
}
/* }}} */

/* {{{ php_iptc_read_remaining
 */
static int php_iptc_read_remaining(FILE *fp, int spool, unsigned char **spoolbuf)
{
    while (php_iptc_get1(fp, spool, spoolbuf) != EOF) continue;

  return M_EOI;
}
/* }}} */

/* {{{ php_iptc_skip_variable
 */
static int php_iptc_skip_variable(FILE *fp, int spool, unsigned char **spoolbuf)
{
  unsigned int  length;
  int c1, c2;

    if ((c1 = php_iptc_get1(fp, spool, spoolbuf)) == EOF) return M_EOI;

    if ((c2 = php_iptc_get1(fp, spool, spoolbuf)) == EOF) return M_EOI;

  length = (((unsigned char) c1) << 8) + ((unsigned char) c2);

  length -= 2;

  while (length--)
    if (php_iptc_get1(fp, spool, spoolbuf) == EOF) return M_EOI;

  return 0;
}
/* }}} */

/* {{{ php_iptc_next_marker
 */
static int php_iptc_next_marker(FILE *fp, int spool, unsigned char **spoolbuf)
{
    int c;

    /* skip unimportant stuff */

    c = php_iptc_get1(fp, spool, spoolbuf);

  if (c == EOF) return M_EOI;

    while (c != 0xff) {
        if ((c = php_iptc_get1(fp, spool, spoolbuf)) == EOF)
            return M_EOI; /* we hit EOF */
    }

    /* get marker byte, swallowing possible padding */
    do {
        c = php_iptc_get1(fp, 0, 0);
    if (c == EOF)
            return M_EOI;       /* we hit EOF */
    else
    if (c == 0xff)
      php_iptc_put1(fp, spool, (unsigned char)c, spoolbuf);
    } while (c == 0xff);

    return (unsigned int) c;
}
/* }}} */

static char psheader[] = "\xFF\xED\0\0Photoshop 3.0\08BIM\x04\x04\0\0\0\0";

/* {{{ proto string|false iptcembed(string iptcdata, string jpeg_file_name [, int spool])
   Embed binary IPTC data into a JPEG image. */
PHP_FUNCTION(iptcembed)
{
  char *iptcdata, *jpeg_file;
  size_t iptcdata_len, jpeg_file_len;
  zend_long spool = 0;
  FILE *fp;
  unsigned int marker, done = 0;
  size_t inx;
  zend_string *spoolbuf = NULL;
  unsigned char *poi = NULL;
  zend_stat_t sb;
  zend_bool written = 0;

  ZEND_PARSE_PARAMETERS_START(2, 3)
    Z_PARAM_STRING(iptcdata, iptcdata_len)
    Z_PARAM_PATH(jpeg_file, jpeg_file_len)
    Z_PARAM_OPTIONAL
    Z_PARAM_LONG(spool)
  ZEND_PARSE_PARAMETERS_END();

  if (php_check_open_basedir(jpeg_file)) {
    RETURN_FALSE;
  }

  if (iptcdata_len >= SIZE_MAX - sizeof(psheader) - 1025) {
    php_error_docref(NULL, E_WARNING, "IPTC data too large");
    RETURN_FALSE;
  }

  if ((fp = VCWD_FOPEN(jpeg_file, "rb")) == 0) {
    php_error_docref(NULL, E_WARNING, "Unable to open %s", jpeg_file);
    RETURN_FALSE;
  }

  if (spool < 2) {
    zend_fstat(fileno(fp), &sb);

    spoolbuf = zend_string_safe_alloc(1, iptcdata_len + sizeof(psheader) + 1024 + 1, sb.st_size, 0);
    poi = (unsigned char*)ZSTR_VAL(spoolbuf);
    memset(poi, 0, iptcdata_len + sizeof(psheader) + sb.st_size + 1024 + 1);
  }

  if (php_iptc_get1(fp, spool, poi?&poi:0) != 0xFF) {
    fclose(fp);
    if (spoolbuf) {
      zend_string_efree(spoolbuf);
    }
    RETURN_FALSE;
  }

  if (php_iptc_get1(fp, spool, poi?&poi:0) != 0xD8) {
    fclose(fp);
    if (spoolbuf) {
      zend_string_efree(spoolbuf);
    }
    RETURN_FALSE;
  }

  while (!done) {
    marker = php_iptc_next_marker(fp, spool, poi?&poi:0);

    if (marker == M_EOI) { /* EOF */
      break;
    } else if (marker != M_APP13) {
      php_iptc_put1(fp, spool, (unsigned char)marker, poi?&poi:0);
    }

    switch (marker) {
      case M_APP13:
        /* we are going to write a new APP13 marker, so don't output the old one */
        php_iptc_skip_variable(fp, 0, 0);
        fgetc(fp); /* skip already copied 0xFF byte */
        php_iptc_read_remaining(fp, spool, poi?&poi:0);
        done = 1;
        break;

      case M_APP0:
        /* APP0 is in each and every JPEG, so when we hit APP0 we insert our new APP13! */
      case M_APP1:
        if (written) {
          /* don't try to write the data twice */
          break;
        }
        written = 1;

        php_iptc_skip_variable(fp, spool, poi?&poi:0);

        if (iptcdata_len & 1) {
          iptcdata_len++; /* make the length even */
        }

        psheader[ 2 ] = (char) ((iptcdata_len+28)>>8);
        psheader[ 3 ] = (iptcdata_len+28)&0xff;

        for (inx = 0; inx < 28; inx++) {
          php_iptc_put1(fp, spool, psheader[inx], poi?&poi:0);
        }

        php_iptc_put1(fp, spool, (unsigned char)(iptcdata_len>>8), poi?&poi:0);
        php_iptc_put1(fp, spool, (unsigned char)(iptcdata_len&0xff), poi?&poi:0);

        for (inx = 0; inx < iptcdata_len; inx++) {
          php_iptc_put1(fp, spool, iptcdata[inx], poi?&poi:0);
        }
        break;

      case M_SOS:
        /* we hit data, no more marker-inserting can be done! */
        php_iptc_read_remaining(fp, spool, poi?&poi:0);
        done = 1;
        break;

      default:
        php_iptc_skip_variable(fp, spool, poi?&poi:0);
        break;
    }
  }

  fclose(fp);

  if (spool < 2) {
    spoolbuf = zend_string_truncate(spoolbuf, poi - (unsigned char*)ZSTR_VAL(spoolbuf), 0);
    RETURN_NEW_STR(spoolbuf);
  } else {
    RETURN_TRUE;
  }
}
/* }}} */

/* {{{ proto array|false iptcparse(string iptcdata)
   Parse binary IPTC-data into associative array */
PHP_FUNCTION(iptcparse)
{
  size_t inx = 0, len;
  unsigned int tagsfound = 0;
  unsigned char *buffer, recnum, dataset;
  char *str, key[16];
  size_t str_len;
  zval values, *element;

  ZEND_PARSE_PARAMETERS_START(1, 1)
    Z_PARAM_STRING(str, str_len)
  ZEND_PARSE_PARAMETERS_END();

  buffer = (unsigned char *)str;

  while (inx < str_len) { /* find 1st tag */
    if ((buffer[inx] == 0x1c) && ((buffer[inx+1] == 0x01) || (buffer[inx+1] == 0x02))){
      break;
    } else {
      inx++;
    }
  }

  while (inx < str_len) {
    if (buffer[ inx++ ] != 0x1c) {
      break;   /* we ran against some data which does not conform to IPTC - stop parsing! */
    }

    if ((inx + 4) >= str_len)
      break;

    dataset = buffer[ inx++ ];
    recnum = buffer[ inx++ ];

    if (buffer[ inx ] & (unsigned char) 0x80) { /* long tag */
      if((inx+6) >= str_len) {
        break;
      }
      len = (((zend_long) buffer[ inx + 2 ]) << 24) + (((zend_long) buffer[ inx + 3 ]) << 16) +
          (((zend_long) buffer[ inx + 4 ]) <<  8) + (((zend_long) buffer[ inx + 5 ]));
      inx += 6;
    } else { /* short tag */
      len = (((unsigned short) buffer[ inx ])<<8) | (unsigned short)buffer[ inx+1 ];
      inx += 2;
    }

    if ((len > str_len) || (inx + len) > str_len) {
      break;
    }

    snprintf(key, sizeof(key), "%d#%03d", (unsigned int) dataset, (unsigned int) recnum);

    if (tagsfound == 0) { /* found the 1st tag - initialize the return array */
      array_init(return_value);
    }

    if ((element = zend_hash_str_find(Z_ARRVAL_P(return_value), key, strlen(key))) == NULL) {
      array_init(&values);

      element = zend_hash_str_update(Z_ARRVAL_P(return_value), key, strlen(key), &values);
    }

    add_next_index_stringl(element, (char *) buffer+inx, len);
    inx += len;
    tagsfound++;
  }

  if (! tagsfound) {
    RETURN_FALSE;
  }
}
/* }}} */

Coverage Report

Created: 2022-10-14 11:23

Line	Count	Source (jump to first uncovered line)
1		/*
2		+----------------------------------------------------------------------+
3		\| Copyright (c) The PHP Group \|
4		+----------------------------------------------------------------------+
5		\| This source file is subject to version 3.01 of the PHP license, \|
6		\| that is bundled with this package in the file LICENSE, and is \|
7		\| available through the world-wide-web at the following url: \|
8		\| http://www.php.net/license/3_01.txt \|
9		\| If you did not receive a copy of the PHP license and are unable to \|
10		\| obtain it through the world-wide-web, please send a note to \|
11		\| license@php.net so we can mail you a copy immediately. \|
12		+----------------------------------------------------------------------+
13		\| Author: Thies C. Arntzen <thies@thieso.net> \|
14		+----------------------------------------------------------------------+
15		*/
16
17		/*
18		* Functions to parse & compse IPTC data.
19		* PhotoShop >= 3.0 can read and write textual data to JPEG files.
20		* ... more to come .....
21		*
22		* i know, parts of this is now duplicated in image.c
23		* but in this case i think it's okay!
24		*/
25
26		/*
27		* TODO:
28		* - add IPTC translation table
29		*/
30
31		#include "php.h"
32		#include "ext/standard/head.h"
33
34		#include <sys/stat.h>
35
36		#include <stdint.h>
37		#ifndef PHP_WIN32
38		# include <inttypes.h>
39		#endif
40
41		/* some defines for the different JPEG block types */
42		#define M_SOF0 0xC0 /* Start Of Frame N */
43		#define M_SOF1 0xC1 /* N indicates which compression process */
44		#define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */
45		#define M_SOF3 0xC3
46		#define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */
47		#define M_SOF6 0xC6
48		#define M_SOF7 0xC7
49		#define M_SOF9 0xC9
50		#define M_SOF10 0xCA
51		#define M_SOF11 0xCB
52		#define M_SOF13 0xCD
53		#define M_SOF14 0xCE
54		#define M_SOF15 0xCF
55		#define M_SOI 0xD8
56	0	#define M_EOI 0xD9 /* End Of Image (end of datastream) */
57	0	#define M_SOS 0xDA /* Start Of Scan (begins compressed data) */
58	0	#define M_APP0 0xe0
59	0	#define M_APP1 0xe1
60		#define M_APP2 0xe2
61		#define M_APP3 0xe3
62		#define M_APP4 0xe4
63		#define M_APP5 0xe5
64		#define M_APP6 0xe6
65		#define M_APP7 0xe7
66		#define M_APP8 0xe8
67		#define M_APP9 0xe9
68		#define M_APP10 0xea
69		#define M_APP11 0xeb
70		#define M_APP12 0xec
71	0	#define M_APP13 0xed
72		#define M_APP14 0xee
73		#define M_APP15 0xef
74
75		/* {{{ php_iptc_put1
76		*/
77		static int php_iptc_put1(FILE fp, int spool, unsigned char c, unsigned char *spoolbuf)
78	0	{
79	0	if (spool > 0)
80	0	PUTC(c);
81
82	0	if (spoolbuf) (spoolbuf)++ = c;
83
84	0	return c;
85	0	}
86		/* }}} */
87
88		/* {{{ php_iptc_get1
89		*/
90		static int php_iptc_get1(FILE fp, int spool, unsigned char *spoolbuf)
91	0	{
92	0	int c;
93	0	char cc;
94
95	0	c = getc(fp);
96
97	0	if (c == EOF) return EOF;
98
99	0	if (spool > 0) {
100	0	cc = c;
101	0	PUTC(cc);
102	0	}
103
104	0	if (spoolbuf) (spoolbuf)++ = c;
105
106	0	return c;
107	0	}
108		/* }}} */
109
110		/* {{{ php_iptc_read_remaining
111		*/
112		static int php_iptc_read_remaining(FILE fp, int spool, unsigned char *spoolbuf)
113	0	{
114	0	while (php_iptc_get1(fp, spool, spoolbuf) != EOF) continue;
115
116	0	return M_EOI;
117	0	}
118		/* }}} */
119
120		/* {{{ php_iptc_skip_variable
121		*/
122		static int php_iptc_skip_variable(FILE fp, int spool, unsigned char *spoolbuf)
123	0	{
124	0	unsigned int length;
125	0	int c1, c2;
126
127	0	if ((c1 = php_iptc_get1(fp, spool, spoolbuf)) == EOF) return M_EOI;
128
129	0	if ((c2 = php_iptc_get1(fp, spool, spoolbuf)) == EOF) return M_EOI;
130
131	0	length = (((unsigned char) c1) << 8) + ((unsigned char) c2);
132
133	0	length -= 2;
134
135	0	while (length--)
136	0	if (php_iptc_get1(fp, spool, spoolbuf) == EOF) return M_EOI;
137
138	0	return 0;
139	0	}
140		/* }}} */
141
142		/* {{{ php_iptc_next_marker
143		*/
144		static int php_iptc_next_marker(FILE fp, int spool, unsigned char *spoolbuf)
145	0	{
146	0	int c;
147
148		/* skip unimportant stuff */
149
150	0	c = php_iptc_get1(fp, spool, spoolbuf);
151
152	0	if (c == EOF) return M_EOI;
153
154	0	while (c != 0xff) {
155	0	if ((c = php_iptc_get1(fp, spool, spoolbuf)) == EOF)
156	0	return M_EOI; /* we hit EOF */
157	0	}
158
159		/* get marker byte, swallowing possible padding */
160	0	do {
161	0	c = php_iptc_get1(fp, 0, 0);
162	0	if (c == EOF)
163	0	return M_EOI; /* we hit EOF */
164	0	else
165	0	if (c == 0xff)
166	0	php_iptc_put1(fp, spool, (unsigned char)c, spoolbuf);
167	0	} while (c == 0xff);
168
169	0	return (unsigned int) c;
170	0	}
171		/* }}} */
172
173		static char psheader[] = "\xFF\xED\0\0Photoshop 3.0\08BIM\x04\x04\0\0\0\0";
174
175		/* {{{ proto string\|false iptcembed(string iptcdata, string jpeg_file_name [, int spool])
176		Embed binary IPTC data into a JPEG image. */
177		PHP_FUNCTION(iptcembed)
178	0	{
179	0	char iptcdata, jpeg_file;
180	0	size_t iptcdata_len, jpeg_file_len;
181	0	zend_long spool = 0;
182	0	FILE *fp;
183	0	unsigned int marker, done = 0;
184	0	size_t inx;
185	0	zend_string *spoolbuf = NULL;
186	0	unsigned char *poi = NULL;
187	0	zend_stat_t sb;
188	0	zend_bool written = 0;
189
190	0	ZEND_PARSE_PARAMETERS_START(2, 3)
191	0	Z_PARAM_STRING(iptcdata, iptcdata_len)
192	0	Z_PARAM_PATH(jpeg_file, jpeg_file_len)
193	0	Z_PARAM_OPTIONAL
194	0	Z_PARAM_LONG(spool)
195	0	ZEND_PARSE_PARAMETERS_END();
196
197	0	if (php_check_open_basedir(jpeg_file)) {
198	0	RETURN_FALSE;
199	0	}
200
201	0	if (iptcdata_len >= SIZE_MAX - sizeof(psheader) - 1025) {
202	0	php_error_docref(NULL, E_WARNING, "IPTC data too large");
203	0	RETURN_FALSE;
204	0	}
205
206	0	if ((fp = VCWD_FOPEN(jpeg_file, "rb")) == 0) {
207	0	php_error_docref(NULL, E_WARNING, "Unable to open %s", jpeg_file);
208	0	RETURN_FALSE;
209	0	}
210
211	0	if (spool < 2) {
212	0	zend_fstat(fileno(fp), &sb);
213
214	0	spoolbuf = zend_string_safe_alloc(1, iptcdata_len + sizeof(psheader) + 1024 + 1, sb.st_size, 0);
215	0	poi = (unsigned char*)ZSTR_VAL(spoolbuf);
216	0	memset(poi, 0, iptcdata_len + sizeof(psheader) + sb.st_size + 1024 + 1);
217	0	}
218
219	0	if (php_iptc_get1(fp, spool, poi?&poi:0) != 0xFF) {
220	0	fclose(fp);
221	0	if (spoolbuf) {
222	0	zend_string_efree(spoolbuf);
223	0	}
224	0	RETURN_FALSE;
225	0	}
226
227	0	if (php_iptc_get1(fp, spool, poi?&poi:0) != 0xD8) {
228	0	fclose(fp);
229	0	if (spoolbuf) {
230	0	zend_string_efree(spoolbuf);
231	0	}
232	0	RETURN_FALSE;
233	0	}
234
235	0	while (!done) {
236	0	marker = php_iptc_next_marker(fp, spool, poi?&poi:0);
237
238	0	if (marker == M_EOI) { /* EOF */
239	0	break;
240	0	} else if (marker != M_APP13) {
241	0	php_iptc_put1(fp, spool, (unsigned char)marker, poi?&poi:0);
242	0	}
243
244	0	switch (marker) {
245	0	case M_APP13:
246		/* we are going to write a new APP13 marker, so don't output the old one */
247	0	php_iptc_skip_variable(fp, 0, 0);
248	0	fgetc(fp); /* skip already copied 0xFF byte */
249	0	php_iptc_read_remaining(fp, spool, poi?&poi:0);
250	0	done = 1;
251	0	break;
252
253	0	case M_APP0:
254		/* APP0 is in each and every JPEG, so when we hit APP0 we insert our new APP13! */
255	0	case M_APP1:
256	0	if (written) {
257		/* don't try to write the data twice */
258	0	break;
259	0	}
260	0	written = 1;
261
262	0	php_iptc_skip_variable(fp, spool, poi?&poi:0);
263
264	0	if (iptcdata_len & 1) {
265	0	iptcdata_len++; /* make the length even */
266	0	}
267
268	0	psheader[ 2 ] = (char) ((iptcdata_len+28)>>8);
269	0	psheader[ 3 ] = (iptcdata_len+28)&0xff;
270
271	0	for (inx = 0; inx < 28; inx++) {
272	0	php_iptc_put1(fp, spool, psheader[inx], poi?&poi:0);
273	0	}
274
275	0	php_iptc_put1(fp, spool, (unsigned char)(iptcdata_len>>8), poi?&poi:0);
276	0	php_iptc_put1(fp, spool, (unsigned char)(iptcdata_len&0xff), poi?&poi:0);
277
278	0	for (inx = 0; inx < iptcdata_len; inx++) {
279	0	php_iptc_put1(fp, spool, iptcdata[inx], poi?&poi:0);
280	0	}
281	0	break;
282
283	0	case M_SOS:
284		/* we hit data, no more marker-inserting can be done! */
285	0	php_iptc_read_remaining(fp, spool, poi?&poi:0);
286	0	done = 1;
287	0	break;
288
289	0	default:
290	0	php_iptc_skip_variable(fp, spool, poi?&poi:0);
291	0	break;
292	0	}
293	0	}
294
295	0	fclose(fp);
296
297	0	if (spool < 2) {
298	0	spoolbuf = zend_string_truncate(spoolbuf, poi - (unsigned char*)ZSTR_VAL(spoolbuf), 0);
299	0	RETURN_NEW_STR(spoolbuf);
300	0	} else {
301	0	RETURN_TRUE;
302	0	}
303	0	}
304		/* }}} */
305
306		/* {{{ proto array\|false iptcparse(string iptcdata)
307		Parse binary IPTC-data into associative array */
308		PHP_FUNCTION(iptcparse)
309	0	{
310	0	size_t inx = 0, len;
311	0	unsigned int tagsfound = 0;
312	0	unsigned char *buffer, recnum, dataset;
313	0	char *str, key[16];
314	0	size_t str_len;
315	0	zval values, *element;
316
317	0	ZEND_PARSE_PARAMETERS_START(1, 1)
318	0	Z_PARAM_STRING(str, str_len)
319	0	ZEND_PARSE_PARAMETERS_END();
320
321	0	buffer = (unsigned char *)str;
322
323	0	while (inx < str_len) { /* find 1st tag */
324	0	if ((buffer[inx] == 0x1c) && ((buffer[inx+1] == 0x01) \|\| (buffer[inx+1] == 0x02))){
325	0	break;
326	0	} else {
327	0	inx++;
328	0	}
329	0	}
330
331	0	while (inx < str_len) {
332	0	if (buffer[ inx++ ] != 0x1c) {
333	0	break; /* we ran against some data which does not conform to IPTC - stop parsing! */
334	0	}
335
336	0	if ((inx + 4) >= str_len)
337	0	break;
338
339	0	dataset = buffer[ inx++ ];
340	0	recnum = buffer[ inx++ ];
341
342	0	if (buffer[ inx ] & (unsigned char) 0x80) { /* long tag */
343	0	if((inx+6) >= str_len) {
344	0	break;
345	0	}
346	0	len = (((zend_long) buffer[ inx + 2 ]) << 24) + (((zend_long) buffer[ inx + 3 ]) << 16) +
347	0	(((zend_long) buffer[ inx + 4 ]) << 8) + (((zend_long) buffer[ inx + 5 ]));
348	0	inx += 6;
349	0	} else { /* short tag */
350	0	len = (((unsigned short) buffer[ inx ])<<8) \| (unsigned short)buffer[ inx+1 ];
351	0	inx += 2;
352	0	}
353
354	0	if ((len > str_len) \|\| (inx + len) > str_len) {
355	0	break;
356	0	}
357
358	0	snprintf(key, sizeof(key), "%d#%03d", (unsigned int) dataset, (unsigned int) recnum);
359
360	0	if (tagsfound == 0) { /* found the 1st tag - initialize the return array */
361	0	array_init(return_value);
362	0	}
363
364	0	if ((element = zend_hash_str_find(Z_ARRVAL_P(return_value), key, strlen(key))) == NULL) {
365	0	array_init(&values);
366
367	0	element = zend_hash_str_update(Z_ARRVAL_P(return_value), key, strlen(key), &values);
368	0	}
369
370	0	add_next_index_stringl(element, (char *) buffer+inx, len);
371	0	inx += len;
372	0	tagsfound++;
373	0	}
374
375	0	if (! tagsfound) {
376	0	RETURN_FALSE;
377	0	}
378	0	}
379		/* }}} */