diff options
Diffstat (limited to 'php-8.3.0-systzdata-v24.patch')
| -rw-r--r-- | php-8.3.0-systzdata-v24.patch | 746 |
1 files changed, 746 insertions, 0 deletions
diff --git a/php-8.3.0-systzdata-v24.patch b/php-8.3.0-systzdata-v24.patch new file mode 100644 index 0000000..69d5856 --- /dev/null +++ b/php-8.3.0-systzdata-v24.patch @@ -0,0 +1,746 @@ +# License: MIT +# http://opensource.org/licenses/MIT + +Add support for use of the system timezone database, rather +than embedding a copy. Discussed upstream but was not desired. + +History: +f24: add internal UTC if tzdata is missing +r23: fix possible buffer overflow +r22: retrieve tzdata version from /usr/share/zoneinfo/tzdata.zi +r21: adapt for timelib 2021.03 (in 8.1.0) +r20: adapt for timelib 2020.03 (in 8.0.10RC1) +r19: adapt for timelib 2020.02 (in 8.0.0beta2) +r18: adapt for autotool change in 7.3.3RC1 +r17: adapt for timelib 2018.01 (in 7.3.2RC1) +r16: adapt for timelib 2017.06 (in 7.2.3RC1) +r15: adapt for timelib 2017.05beta7 (in 7.2.0RC1) +r14: improve check for valid tz file +r13: adapt for upstream changes to use PHP allocator +r12: adapt for upstream changes for new zic +r11: use canonical names to avoid more case sensitivity issues + round lat/long from zone.tab towards zero per builtin db +r10: make timezone case insensitive +r9: fix another compile error without --with-system-tzdata configured (Michael Heimpold) +r8: fix compile error without --with-system-tzdata configured +r7: improve check for valid timezone id to exclude directories +r6: fix fd leak in r5, fix country code/BC flag use in + timezone_identifiers_list() using system db, + fix use of PECL timezonedb to override system db, +r5: reverts addition of "System/Localtime" fake tzname. + updated for 5.3.0, parses zone.tab to pick up mapping between + timezone name, country code and long/lat coords +r4: added "System/Localtime" tzname which uses /etc/localtime +r3: fix a crash if /usr/share/zoneinfo doesn't exist (Raphael Geissert) +r2: add filesystem trawl to set up name alias index +r1: initial revision + + +diff --git a/ext/date/config0.m4 b/ext/date/config0.m4 +index 6b803bf33e..53c3cdb3f4 100644 +--- a/ext/date/config0.m4 ++++ b/ext/date/config0.m4 +@@ -4,6 +4,19 @@ AC_CHECK_HEADERS([io.h]) + dnl Check for strtoll, atoll + AC_CHECK_FUNCS(strtoll atoll) + ++PHP_ARG_WITH(system-tzdata, for use of system timezone data, ++[ --with-system-tzdata[=DIR] to specify use of system timezone data], ++no, no) ++ ++if test "$PHP_SYSTEM_TZDATA" != "no"; then ++ AC_DEFINE(HAVE_SYSTEM_TZDATA, 1, [Define if system timezone data is used]) ++ ++ if test "$PHP_SYSTEM_TZDATA" != "yes"; then ++ AC_DEFINE_UNQUOTED(HAVE_SYSTEM_TZDATA_PREFIX, "$PHP_SYSTEM_TZDATA", ++ [Define for location of system timezone data]) ++ fi ++fi ++ + PHP_DATE_CFLAGS="-Wno-implicit-fallthrough -I@ext_builddir@/lib -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1 -DHAVE_TIMELIB_CONFIG_H=1" + timelib_sources="lib/astro.c lib/dow.c lib/parse_date.c lib/parse_tz.c lib/parse_posix.c + lib/timelib.c lib/tm2unixtime.c lib/unixtime2tm.c lib/parse_iso_intervals.c lib/interval.c" +diff --git a/ext/date/lib/parse_tz.c b/ext/date/lib/parse_tz.c +index c7f93580d7..ec196a98b6 100644 +--- a/ext/date/lib/parse_tz.c ++++ b/ext/date/lib/parse_tz.c +@@ -26,9 +26,33 @@ + #include "timelib.h" + #include "timelib_private.h" + ++#ifdef HAVE_SYSTEM_TZDATA ++#include <sys/mman.h> ++#include <sys/stat.h> ++#include <limits.h> ++#include <fcntl.h> ++#include <unistd.h> ++ ++#include "php_scandir.h" ++ ++static const unsigned char internal_utc[] = { ++ 0x54, 0x5a, 0x69, 0x66, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ++ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ++ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, ++ 0x00, 0x00, 0x55, 0x54, 0x43, 0x00, 0x54, 0x5a, 0x69, 0x66, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, ++ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ++ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, ++ 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0x54, 0x43, 0x00, 0x0a, 0x55, 0x54, 0x43, ++ 0x30, 0x0a ++}; ++ ++#else + #define TIMELIB_SUPPORTS_V2DATA + #define TIMELIB_SUPPORT_SLIM_FILE + #include "timezonedb.h" ++#endif ++ ++#include <ctype.h> + + #if (defined(__APPLE__) || defined(__APPLE_CC__)) && (defined(__BIG_ENDIAN__) || defined(__LITTLE_ENDIAN__)) + # if defined(__LITTLE_ENDIAN__) +@@ -95,6 +119,11 @@ static int read_php_preamble(const unsigned char **tzf, timelib_tzinfo *tz) + { + uint32_t version; + ++ if (memcmp(*tzf, "TZif", 4) == 0) { ++ *tzf += 20; ++ return 0; ++ } ++ + /* read ID */ + version = (*tzf)[3] - '0'; + *tzf += 4; +@@ -577,7 +606,475 @@ void timelib_dump_tzinfo(timelib_tzinfo *tz) + } + } + +-static int seek_to_tz_position(const unsigned char **tzf, const char *timezone, const timelib_tzdb *tzdb) ++#ifdef HAVE_SYSTEM_TZDATA ++ ++#ifdef HAVE_SYSTEM_TZDATA_PREFIX ++#define ZONEINFO_PREFIX HAVE_SYSTEM_TZDATA_PREFIX ++#else ++#define ZONEINFO_PREFIX "/usr/share/zoneinfo" ++#endif ++ ++/* System timezone database pointer. */ ++static const timelib_tzdb *timezonedb_system; ++ ++/* Hash table entry for the cache of the zone.tab mapping table. */ ++struct location_info { ++ char code[2]; ++ double latitude, longitude; ++ char name[64]; ++ char *comment; ++ struct location_info *next; ++}; ++ ++/* Cache of zone.tab. */ ++static struct location_info **system_location_table; ++ ++/* Size of the zone.tab hash table; a random-ish prime big enough to ++ * prevent too many collisions. */ ++#define LOCINFO_HASH_SIZE (1021) ++ ++/* Compute a case insensitive hash of str */ ++static uint32_t tz_hash(const char *str) ++{ ++ const unsigned char *p = (const unsigned char *)str; ++ uint32_t hash = 5381; ++ int c; ++ ++ while ((c = tolower(*p++)) != '\0') { ++ hash = (hash << 5) ^ hash ^ c; ++ } ++ ++ return hash % LOCINFO_HASH_SIZE; ++} ++ ++/* Parse an ISO-6709 date as used in zone.tab. Returns end of the ++ * parsed string on success, or NULL on parse error. On success, ++ * writes the parsed number to *result. */ ++static char *parse_iso6709(char *p, double *result) ++{ ++ double v, sign; ++ char *pend; ++ size_t len; ++ ++ if (*p == '+') ++ sign = 1.0; ++ else if (*p == '-') ++ sign = -1.0; ++ else ++ return NULL; ++ ++ p++; ++ for (pend = p; *pend >= '0' && *pend <= '9'; pend++) ++ ;; ++ ++ /* Annoying encoding used by zone.tab has no decimal point, so use ++ * the length to determine the format: ++ * ++ * 4 = DDMM ++ * 5 = DDDMM ++ * 6 = DDMMSS ++ * 7 = DDDMMSS ++ */ ++ len = pend - p; ++ if (len < 4 || len > 7) { ++ return NULL; ++ } ++ ++ /* p => [D]DD */ ++ v = (p[0] - '0') * 10.0 + (p[1] - '0'); ++ p += 2; ++ if (len == 5 || len == 7) ++ v = v * 10.0 + (*p++ - '0'); ++ /* p => MM[SS] */ ++ v += (10.0 * (p[0] - '0') ++ + p[1] - '0') / 60.0; ++ p += 2; ++ /* p => [SS] */ ++ if (len > 5) { ++ v += (10.0 * (p[0] - '0') ++ + p[1] - '0') / 3600.0; ++ p += 2; ++ } ++ ++ /* Round to five decimal place, not because it's a good idea, ++ * but, because the builtin data uses rounded data, so, match ++ * that. */ ++ *result = trunc(v * sign * 100000.0) / 100000.0; ++ ++ return p; ++} ++ ++/* This function parses the zone.tab file to build up the mapping of ++ * timezone to country code and geographic location, and returns a ++ * hash table. The hash table is indexed by the function: ++ * ++ * tz_hash(timezone-name) ++ */ ++static struct location_info **create_location_table(void) ++{ ++ struct location_info **li, *i; ++ char zone_tab[PATH_MAX]; ++ char line[512]; ++ FILE *fp; ++ ++ strncpy(zone_tab, ZONEINFO_PREFIX "/zone.tab", sizeof zone_tab); ++ ++ fp = fopen(zone_tab, "r"); ++ if (!fp) { ++ return NULL; ++ } ++ ++ li = calloc(LOCINFO_HASH_SIZE, sizeof *li); ++ ++ while (fgets(line, sizeof line, fp)) { ++ char *p = line, *code, *name, *comment; ++ uint32_t hash; ++ double latitude, longitude; ++ ++ while (isspace(*p)) ++ p++; ++ ++ if (*p == '#' || *p == '\0' || *p == '\n') ++ continue; ++ ++ if (!isalpha(p[0]) || !isalpha(p[1]) || p[2] != '\t') ++ continue; ++ ++ /* code => AA */ ++ code = p; ++ p[2] = 0; ++ p += 3; ++ ++ /* coords => [+-][D]DDMM[SS][+-][D]DDMM[SS] */ ++ p = parse_iso6709(p, &latitude); ++ if (!p) { ++ continue; ++ } ++ p = parse_iso6709(p, &longitude); ++ if (!p) { ++ continue; ++ } ++ ++ if (!p || *p != '\t') { ++ continue; ++ } ++ ++ /* name = string */ ++ name = ++p; ++ while (*p != '\t' && *p && *p != '\n') ++ p++; ++ ++ *p++ = '\0'; ++ ++ /* comment = string */ ++ comment = p; ++ while (*p != '\t' && *p && *p != '\n') ++ p++; ++ ++ if (*p == '\n' || *p == '\t') ++ *p = '\0'; ++ ++ hash = tz_hash(name); ++ i = malloc(sizeof *i); ++ memcpy(i->code, code, 2); ++ strncpy(i->name, name, sizeof i->name); ++ i->comment = strdup(comment); ++ i->longitude = longitude; ++ i->latitude = latitude; ++ i->next = li[hash]; ++ li[hash] = i; ++ /* printf("%s [%u, %f, %f]\n", name, hash, latitude, longitude); */ ++ } ++ ++ fclose(fp); ++ ++ return li; ++} ++ ++/* Return location info from hash table, using given timezone name. ++ * Returns NULL if the name could not be found. */ ++const struct location_info *find_zone_info(struct location_info **li, ++ const char *name) ++{ ++ uint32_t hash = tz_hash(name); ++ const struct location_info *l; ++ ++ if (!li) { ++ return NULL; ++ } ++ ++ for (l = li[hash]; l; l = l->next) { ++ if (timelib_strcasecmp(l->name, name) == 0) ++ return l; ++ } ++ ++ return NULL; ++} ++ ++/* Filter out some non-tzdata files and the posix/right databases, if ++ * present. */ ++static int index_filter(const struct dirent *ent) ++{ ++ return strcmp(ent->d_name, ".") != 0 ++ && strcmp(ent->d_name, "..") != 0 ++ && strcmp(ent->d_name, "posix") != 0 ++ && strcmp(ent->d_name, "posixrules") != 0 ++ && strcmp(ent->d_name, "right") != 0 ++ && strstr(ent->d_name, ".list") == NULL ++ && strstr(ent->d_name, ".tab") == NULL; ++} ++ ++static int sysdbcmp(const void *first, const void *second) ++{ ++ const timelib_tzdb_index_entry *alpha = first, *beta = second; ++ ++ return timelib_strcasecmp(alpha->id, beta->id); ++} ++ ++/* Retrieve tzdata version. */ ++static void retrieve_zone_version(timelib_tzdb *db) ++{ ++ static char buf[30]; ++ char path[PATH_MAX]; ++ FILE *fp; ++ ++ strncpy(path, ZONEINFO_PREFIX "/tzdata.zi", sizeof(path)); ++ ++ fp = fopen(path, "r"); ++ if (fp) { ++ if (fgets(buf, sizeof(buf), fp)) { ++ if (!memcmp(buf, "# version ", 10) && ++ isdigit(buf[10]) && ++ isdigit(buf[11]) && ++ isdigit(buf[12]) && ++ isdigit(buf[13]) && ++ islower(buf[14])) { ++ if (buf[14] >= 't') { /* 2022t = 2022.20 */ ++ buf[17] = 0; ++ buf[16] = buf[14] - 't' + '0'; ++ buf[15] = '2'; ++ } else if (buf[14] >= 'j') { /* 2022j = 2022.10 */ ++ buf[17] = 0; ++ buf[16] = buf[14] - 'j' + '0'; ++ buf[15] = '1'; ++ } else { /* 2022a = 2022.1 */ ++ buf[16] = 0; ++ buf[15] = buf[14] - 'a' + '1'; ++ } ++ buf[14] = '.'; ++ db->version = buf+10; ++ } ++ } ++ fclose(fp); ++ } ++} ++ ++ ++/* Create the zone identifier index by trawling the filesystem. */ ++static void create_zone_index(timelib_tzdb *db) ++{ ++ size_t dirstack_size, dirstack_top; ++ size_t index_size, index_next; ++ timelib_tzdb_index_entry *db_index; ++ char **dirstack; ++ ++ /* LIFO stack to hold directory entries to scan; each slot is a ++ * directory name relative to the zoneinfo prefix. */ ++ dirstack_size = 32; ++ dirstack = malloc(dirstack_size * sizeof *dirstack); ++ dirstack_top = 1; ++ dirstack[0] = strdup(""); ++ ++ /* Index array. */ ++ index_size = 64; ++ db_index = malloc(index_size * sizeof *db_index); ++ index_next = 0; ++ ++ do { ++ struct dirent **ents; ++ char name[PATH_MAX], *top; ++ int count; ++ ++ /* Pop the top stack entry, and iterate through its contents. */ ++ top = dirstack[--dirstack_top]; ++ snprintf(name, sizeof name, ZONEINFO_PREFIX "/%s", top); ++ ++ count = php_scandir(name, &ents, index_filter, php_alphasort); ++ ++ while (count > 0) { ++ struct stat st; ++ const char *leaf = ents[count - 1]->d_name; ++ ++ snprintf(name, sizeof name, ZONEINFO_PREFIX "/%s/%s", ++ top, leaf); ++ ++ if (strlen(name) && stat(name, &st) == 0) { ++ /* Name, relative to the zoneinfo prefix. */ ++ const char *root = top; ++ ++ if (root[0] == '/') root++; ++ ++ snprintf(name, sizeof name, "%s%s%s", root, ++ *root ? "/": "", leaf); ++ ++ if (S_ISDIR(st.st_mode)) { ++ if (dirstack_top == dirstack_size) { ++ dirstack_size *= 2; ++ dirstack = realloc(dirstack, ++ dirstack_size * sizeof *dirstack); ++ } ++ dirstack[dirstack_top++] = strdup(name); ++ } ++ else { ++ if (index_next == index_size) { ++ index_size *= 2; ++ db_index = realloc(db_index, ++ index_size * sizeof *db_index); ++ } ++ ++ db_index[index_next++].id = strdup(name); ++ } ++ } ++ ++ free(ents[--count]); ++ } ++ ++ if (count != -1) free(ents); ++ free(top); ++ } while (dirstack_top); ++ ++ qsort(db_index, index_next, sizeof *db_index, sysdbcmp); ++ ++ if (!index_next) { ++ db_index[index_next++].id = strdup("UTC"); ++ } ++ db->index = db_index; ++ db->index_size = index_next; ++ ++ free(dirstack); ++} ++ ++#define FAKE_HEADER "1234\0??\1??" ++#define FAKE_UTC_POS (7 - 4) ++ ++/* Create a fake data segment for database 'sysdb'. */ ++static void fake_data_segment(timelib_tzdb *sysdb, ++ struct location_info **info) ++{ ++ size_t n; ++ char *data, *p; ++ ++ data = malloc(3 * sysdb->index_size + sizeof(FAKE_HEADER) - 1); ++ ++ p = mempcpy(data, FAKE_HEADER, sizeof(FAKE_HEADER) - 1); ++ ++ for (n = 0; n < sysdb->index_size; n++) { ++ const struct location_info *li; ++ timelib_tzdb_index_entry *ent; ++ ++ ent = (timelib_tzdb_index_entry *)&sysdb->index[n]; ++ ++ /* Lookup the timezone name in the hash table. */ ++ if (strcmp(ent->id, "UTC") == 0) { ++ ent->pos = FAKE_UTC_POS; ++ continue; ++ } ++ ++ li = find_zone_info(info, ent->id); ++ if (li) { ++ /* If found, append the BC byte and the ++ * country code; set the position for this ++ * section of timezone data. */ ++ ent->pos = (p - data) - 4; ++ *p++ = '\1'; ++ *p++ = li->code[0]; ++ *p++ = li->code[1]; ++ } ++ else { ++ /* If not found, the timezone data can ++ * point at the header. */ ++ ent->pos = 0; ++ } ++ } ++ ++ sysdb->data = (unsigned char *)data; ++} ++ ++/* Returns true if the passed-in stat structure describes a ++ * probably-valid timezone file. */ ++static int is_valid_tzfile(const struct stat *st, int fd) ++{ ++ if (fd) { ++ char buf[20]; ++ if (read(fd, buf, 20)!=20) { ++ return 0; ++ } ++ lseek(fd, SEEK_SET, 0); ++ if (memcmp(buf, "TZif", 4)) { ++ return 0; ++ } ++ } ++ return S_ISREG(st->st_mode) && st->st_size > 20; ++} ++ ++/* To allow timezone names to be used case-insensitively, find the ++ * canonical name for this timezone, if possible. */ ++static const char *canonical_tzname(const char *timezone) ++{ ++ if (timezonedb_system) { ++ timelib_tzdb_index_entry *ent, lookup; ++ ++ lookup.id = (char *)timezone; ++ ++ ent = bsearch(&lookup, timezonedb_system->index, ++ timezonedb_system->index_size, sizeof lookup, ++ sysdbcmp); ++ if (ent) { ++ return ent->id; ++ } ++ } ++ ++ return timezone; ++} ++ ++/* Return the mmap()ed tzfile if found, else NULL. On success, the ++ * length of the mapped data is placed in *length. */ ++static char *map_tzfile(const char *timezone, size_t *length) ++{ ++ char fname[PATH_MAX]; ++ struct stat st; ++ char *p; ++ int fd; ++ ++ if (timezone[0] == '\0' || strstr(timezone, "..") != NULL) { ++ return NULL; ++ } ++ ++ snprintf(fname, sizeof fname, ZONEINFO_PREFIX "/%s", canonical_tzname(timezone)); ++ ++ fd = open(fname, O_RDONLY); ++ if (fd == -1) { ++ if (strcmp(timezone, "UTC")) { ++ return NULL; ++ } else { ++ *length = sizeof(internal_utc)-1; ++ return internal_utc; ++ } ++ } else if (fstat(fd, &st) != 0 || !is_valid_tzfile(&st, fd)) { ++ close(fd); ++ return NULL; ++ } ++ ++ *length = st.st_size; ++ p = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0); ++ close(fd); ++ ++ return p != MAP_FAILED ? p : NULL; ++} ++ ++#endif ++ ++static int inmem_seek_to_tz_position(const unsigned char **tzf, const char *timezone, const timelib_tzdb *tzdb) + { + int left = 0, right = tzdb->index_size - 1; + +@@ -603,9 +1100,49 @@ static int seek_to_tz_position(const unsigned char **tzf, const char *timezone, + return 0; + } + ++static int seek_to_tz_position(const unsigned char **tzf, const char *timezone, ++ char **map, size_t *maplen, ++ const timelib_tzdb *tzdb) ++{ ++#ifdef HAVE_SYSTEM_TZDATA ++ if (tzdb == timezonedb_system) { ++ char *orig; ++ ++ orig = map_tzfile(timezone, maplen); ++ if (orig == NULL) { ++ return 0; ++ } ++ ++ (*tzf) = (unsigned char *)orig; ++ *map = orig; ++ return 1; ++ } ++ else ++#endif ++ { ++ return inmem_seek_to_tz_position(tzf, timezone, tzdb); ++ } ++} ++ + const timelib_tzdb *timelib_builtin_db(void) + { ++#ifdef HAVE_SYSTEM_TZDATA ++ if (timezonedb_system == NULL) { ++ timelib_tzdb *tmp = malloc(sizeof *tmp); ++ ++ tmp->version = "0"; ++ tmp->data = NULL; ++ create_zone_index(tmp); ++ retrieve_zone_version(tmp); ++ system_location_table = create_location_table(); ++ fake_data_segment(tmp, system_location_table); ++ timezonedb_system = tmp; ++ } ++ ++ return timezonedb_system; ++#else + return &timezonedb_builtin; ++#endif + } + + const timelib_tzdb_index_entry *timelib_timezone_identifiers_list(const timelib_tzdb *tzdb, int *count) +@@ -617,7 +1154,32 @@ const timelib_tzdb_index_entry *timelib_timezone_identifiers_list(const timelib_ + int timelib_timezone_id_is_valid(const char *timezone, const timelib_tzdb *tzdb) + { + const unsigned char *tzf; +- return (seek_to_tz_position(&tzf, timezone, tzdb)); ++ ++#ifdef HAVE_SYSTEM_TZDATA ++ if (tzdb == timezonedb_system) { ++ char fname[PATH_MAX]; ++ struct stat st; ++ ++ if (timezone[0] == '\0' || strstr(timezone, "..") != NULL) { ++ return 0; ++ } ++ if (!strcmp(timezone, "UTC")) { ++ return 1; ++ } ++ if (system_location_table) { ++ if (find_zone_info(system_location_table, timezone) != NULL) { ++ /* found in cache */ ++ return 1; ++ } ++ } ++ ++ snprintf(fname, sizeof fname, ZONEINFO_PREFIX "/%s", canonical_tzname(timezone)); ++ ++ return stat(fname, &st) == 0 && is_valid_tzfile(&st, 0); ++ } ++#endif ++ ++ return (inmem_seek_to_tz_position(&tzf, timezone, tzdb)); + } + + static int skip_64bit_preamble(const unsigned char **tzf, timelib_tzinfo *tz) +@@ -662,6 +1224,8 @@ static timelib_tzinfo* timelib_tzinfo_ctor(const char *name) + timelib_tzinfo *timelib_parse_tzfile(const char *timezone, const timelib_tzdb *tzdb, int *error_code) + { + const unsigned char *tzf; ++ char *memmap = NULL; ++ size_t maplen; + timelib_tzinfo *tmp; + int version; + int transitions_result, types_result; +@@ -669,7 +1233,7 @@ timelib_tzinfo *timelib_parse_tzfile(const char *timezone, const timelib_tzdb *t + + *error_code = TIMELIB_ERROR_NO_ERROR; + +- if (seek_to_tz_position(&tzf, timezone, tzdb)) { ++ if (seek_to_tz_position(&tzf, timezone, &memmap, &maplen, tzdb)) { + tmp = timelib_tzinfo_ctor(timezone); + + version = read_preamble(&tzf, tmp, &type); +@@ -712,11 +1276,38 @@ timelib_tzinfo *timelib_parse_tzfile(const char *timezone, const timelib_tzdb *t + return NULL; + } + ++#ifdef HAVE_SYSTEM_TZDATA ++ if (memmap) { ++ const struct location_info *li; ++ ++ /* TZif-style - grok the location info from the system database, ++ * if possible. */ ++ ++ if ((li = find_zone_info(system_location_table, timezone)) != NULL) { ++ tmp->location.comments = timelib_strdup(li->comment); ++ strncpy(tmp->location.country_code, li->code, 2); ++ tmp->location.longitude = li->longitude; ++ tmp->location.latitude = li->latitude; ++ tmp->bc = 1; ++ } ++ else { ++ set_default_location_and_comments(&tzf, tmp); ++ } ++ ++ /* Now done with the mmap segment - discard it. */ ++ if (memmap != internal_utc) { ++ munmap(memmap, maplen); ++ } ++ } else { ++#endif + if (type == TIMELIB_TZINFO_PHP) { + read_location(&tzf, tmp); + } else { + set_default_location_and_comments(&tzf, tmp); + } ++#ifdef HAVE_SYSTEM_TZDATA ++ } ++#endif + } else { + *error_code = TIMELIB_ERROR_NO_SUCH_TIMEZONE; + tmp = NULL; +diff --git a/ext/date/php_date.c b/ext/date/php_date.c +index 48c82bf7ec..443299c089 100644 +--- a/ext/date/php_date.c ++++ b/ext/date/php_date.c +@@ -490,7 +490,11 @@ PHP_MINFO_FUNCTION(date) + php_info_print_table_row(2, "date/time support", "enabled"); + php_info_print_table_row(2, "timelib version", TIMELIB_ASCII_VERSION); + php_info_print_table_row(2, "\"Olson\" Timezone Database Version", tzdb->version); ++#ifdef HAVE_SYSTEM_TZDATA ++ php_info_print_table_row(2, "Timezone Database", "system"); ++#else + php_info_print_table_row(2, "Timezone Database", php_date_global_timezone_db_enabled ? "external" : "internal"); ++#endif + php_info_print_table_row(2, "Default timezone", guess_timezone(tzdb)); + php_info_print_table_end(); + |