94 static int read_php_preamble(const unsigned char **tzf, timelib_tzinfo *tz)  in read_php_preamble()  argument
99 	version = (*tzf)[3] - '0';  in read_php_preamble()
100 	*tzf += 4;  in read_php_preamble()
103 	tz->bc = (**tzf == '\1');  in read_php_preamble()
104 	*tzf += 1;  in read_php_preamble()
107 	memcpy(tz->location.country_code, *tzf, 2);  in read_php_preamble()
109 	*tzf += 2;  in read_php_preamble()
112 	*tzf += 13;  in read_php_preamble()
117 static int read_tzif_preamble(const unsigned char **tzf, timelib_tzinfo *tz)  in read_tzif_preamble()  argument
122 	switch ((*tzf)[4]) {  in read_tzif_preamble()
138 	*tzf += 5;  in read_tzif_preamble()
147 	*tzf += 15;  in read_tzif_preamble()
152 static int read_preamble(const unsigned char **tzf, timelib_tzinfo *tz, unsigned int *type)  in read_preamble()  argument
155 	if (memcmp(*tzf, "PHP", 3) == 0) {  in read_preamble()
157 		return read_php_preamble(tzf, tz);  in read_preamble()
158 	} else if (memcmp(*tzf, "TZif", 4) == 0) {  in read_preamble()
160 		return read_tzif_preamble(tzf, tz);  in read_preamble()
166 static void read_32bit_header(const unsigned char **tzf, timelib_tzinfo *tz)  in read_32bit_header()  argument
170 	memcpy(&buffer, *tzf, sizeof(buffer));  in read_32bit_header()
178 	*tzf += sizeof(buffer);  in read_32bit_header()
197 static int read_64bit_transitions(const unsigned char **tzf, timelib_tzinfo *tz)  in read_64bit_transitions()  argument
208 		memcpy(buffer, *tzf, sizeof(int64_t) * tz->bit64.timecnt);  in read_64bit_transitions()
209 		*tzf += (sizeof(int64_t) * tz->bit64.timecnt);  in read_64bit_transitions()
223 		memcpy(cbuffer, *tzf, sizeof(unsigned char) * tz->bit64.timecnt);  in read_64bit_transitions()
224 		*tzf += sizeof(unsigned char) * tz->bit64.timecnt;  in read_64bit_transitions()
233 static void skip_32bit_transitions(const unsigned char **tzf, timelib_tzinfo *tz)  in skip_32bit_transitions()  argument
236 		*tzf += (sizeof(int32_t) * tz->_bit32.timecnt);  in skip_32bit_transitions()
237 		*tzf += sizeof(unsigned char) * tz->_bit32.timecnt;  in skip_32bit_transitions()
241 static int read_64bit_types(const unsigned char **tzf, timelib_tzinfo *tz)  in read_64bit_types()  argument
252 	memcpy(buffer, *tzf, sizeof(unsigned char) * 6 * tz->bit64.typecnt);  in read_64bit_types()
253 	*tzf += sizeof(unsigned char) * 6 * tz->bit64.typecnt;  in read_64bit_types()
277 	memcpy(tz->timezone_abbr, *tzf, sizeof(char) * tz->bit64.charcnt);  in read_64bit_types()
278 	*tzf += sizeof(char) * tz->bit64.charcnt;  in read_64bit_types()
286 		memcpy(leap_buffer, *tzf, tz->bit64.leapcnt * (sizeof(int64_t) + sizeof(int32_t)));  in read_64bit_types()
287 		*tzf += tz->bit64.leapcnt * (sizeof(int64_t) + sizeof(int32_t));  in read_64bit_types()
307 		memcpy(buffer, *tzf, sizeof(unsigned char) * tz->bit64.ttisstdcnt);  in read_64bit_types()
308 		*tzf += sizeof(unsigned char) * tz->bit64.ttisstdcnt;  in read_64bit_types()
322 		memcpy(buffer, *tzf, sizeof(unsigned char) * tz->bit64.ttisgmtcnt);  in read_64bit_types()
323 		*tzf += sizeof(unsigned char) * tz->bit64.ttisgmtcnt;  in read_64bit_types()
334 static void skip_32bit_types(const unsigned char **tzf, timelib_tzinfo *tz)  in skip_32bit_types()  argument
337 	*tzf += sizeof(unsigned char) * 6 * tz->_bit32.typecnt;  in skip_32bit_types()
340 	*tzf += sizeof(char) * tz->_bit32.charcnt;  in skip_32bit_types()
344 		*tzf += sizeof(int32_t) * tz->_bit32.leapcnt * 2;  in skip_32bit_types()
349 		*tzf += sizeof(unsigned char) * tz->_bit32.ttisstdcnt;  in skip_32bit_types()
354 		*tzf += sizeof(unsigned char) * tz->_bit32.ttisgmtcnt;  in skip_32bit_types()
358 static void read_posix_string(const unsigned char **tzf, timelib_tzinfo *tz)  in read_posix_string()  argument
363 	(*tzf)++;  in read_posix_string()
364 	begin = *tzf;  in read_posix_string()
366 	while (*tzf[0] != '\n') {  in read_posix_string()
367 		(*tzf)++;  in read_posix_string()
370 	tz->posix_string = timelib_calloc(1, *tzf - begin + 1);  in read_posix_string()
371 	memcpy(tz->posix_string, begin, *tzf - begin);  in read_posix_string()
374 	(*tzf)++;  in read_posix_string()
446 static void read_location(const unsigned char **tzf, timelib_tzinfo *tz)  in read_location()  argument
451 	memcpy(&buffer, *tzf, sizeof(buffer));  in read_location()
457 	*tzf += sizeof(buffer);  in read_location()
460 	memcpy(tz->location.comments, *tzf, comments_len);  in read_location()
462 	*tzf += comments_len;  in read_location()
465 static void set_default_location_and_comments(const unsigned char **tzf, timelib_tzinfo *tz)  in set_default_location_and_comments()  argument
580 static int seek_to_tz_position(const unsigned char **tzf, const char *timezone, const timelib_tzdb …  in seek_to_tz_position()  argument
597 			(*tzf) = &(tzdb->data[tzdb->index[mid].pos]);  in seek_to_tz_position()
619 	const unsigned char *tzf;  in timelib_timezone_id_is_valid()  local
620 	return (seek_to_tz_position(&tzf, timezone, tzdb));  in timelib_timezone_id_is_valid()
623 static int skip_64bit_preamble(const unsigned char **tzf, timelib_tzinfo *tz)  in skip_64bit_preamble()  argument
625 	if (memcmp(*tzf, "TZif2", 5) == 0) {  in skip_64bit_preamble()
626 		*tzf += 20;  in skip_64bit_preamble()
628 	} else if (memcmp(*tzf, "TZif3", 5) == 0) {  in skip_64bit_preamble()
629 		*tzf += 20;  in skip_64bit_preamble()
631 	} else if (memcmp(*tzf, "TZif4", 5) == 0) {  in skip_64bit_preamble()
632 		*tzf += 20;  in skip_64bit_preamble()
639 static void read_64bit_header(const unsigned char **tzf, timelib_tzinfo *tz)  in read_64bit_header()  argument
643 	memcpy(&buffer, *tzf, sizeof(buffer));  in read_64bit_header()
650 	*tzf += sizeof(buffer);  in read_64bit_header()
664 	const unsigned char *tzf;  in timelib_parse_tzfile()  local
672 	if (seek_to_tz_position(&tzf, timezone, tzdb)) {  in timelib_parse_tzfile()
675 		version = read_preamble(&tzf, tmp, &type);  in timelib_parse_tzfile()
683 		read_32bit_header(&tzf, tmp);  in timelib_parse_tzfile()
684 		skip_32bit_transitions(&tzf, tmp);  in timelib_parse_tzfile()
685 		skip_32bit_types(&tzf, tmp);  in timelib_parse_tzfile()
687 		if (!skip_64bit_preamble(&tzf, tmp)) {  in timelib_parse_tzfile()
693 		read_64bit_header(&tzf, tmp);  in timelib_parse_tzfile()
694 		if ((transitions_result = read_64bit_transitions(&tzf, tmp)) != 0) {  in timelib_parse_tzfile()
700 		if ((types_result = read_64bit_types(&tzf, tmp)) != 0) {  in timelib_parse_tzfile()
706 		read_posix_string(&tzf, tmp);  in timelib_parse_tzfile()
716 			read_location(&tzf, tmp);  in timelib_parse_tzfile()
718 			set_default_location_and_comments(&tzf, tmp);  in timelib_parse_tzfile()