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File php-5.2.5-system-tzdb.patch of Package php-5.3.0 (Revision 5)
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Index: ext/date/lib/parse_tz.c =================================================================== RCS file: /repository/php-src/ext/date/lib/parse_tz.c,v retrieving revision 1.35 diff -u -r1.35 parse_tz.c --- ext/date/lib/parse_tz.c 31 Dec 2007 07:12:08 -0000 1.35 +++ ext/date/lib/parse_tz.c 10 Jan 2008 11:42:15 -0000 @@ -20,6 +20,16 @@ #include "timelib.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" +#endif + #include <stdio.h> #ifdef HAVE_STRING_H @@ -27,7 +37,10 @@ #else #include <strings.h> #endif + +#ifndef HAVE_SYSTEM_TZDATA #include "timezonedb.h" +#endif #if (defined(__APPLE__) || defined(__APPLE_CC__)) && (defined(__BIG_ENDIAN__) || defined(__LITTLE_ENDIAN__)) # if defined(__LITTLE_ENDIAN__) @@ -202,6 +215,195 @@ } } +#ifdef HAVE_SYSTEM_TZDATA + +#ifdef HAVE_SYSTEM_TZDATA_PREFIX +#define ZONEINFO_PREFIX HAVE_SYSTEM_TZDATA_PREFIX +#else +#define ZONEINFO_PREFIX "/usr/share/zoneinfo" +#endif + +static const timelib_tzdb *timezonedb_system = 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, ".tab") == NULL; +} + +/* 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 entres 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); + db_index[index_next++].pos = 0; + } + } + + free(ents[--count]); + } + + free(ents); + free(top); + } while (dirstack_top); + + db->index = db_index; + db->index_size = index_next; + + free(dirstack); +} + +/* 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 (strstr(timezone, "..") != NULL) { + return NULL; + } + + snprintf(fname, sizeof fname, ZONEINFO_PREFIX "/%s", timezone); + + fd = open(fname, O_RDONLY); + if (fd == -1) { + return NULL; + } else if (fstat(fd, &st) != 0 || st.st_size < 21) { + 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; +} + +const timelib_tzdb *timelib_builtin_db(void) +{ + if (timezonedb_system == NULL) { + timelib_tzdb *tmp = malloc(sizeof *tmp); + + tmp->version = "0.system"; + tmp->data = NULL; + create_zone_index(tmp); + timezonedb_system = tmp; + } + + return timezonedb_system; +} + +const timelib_tzdb_index_entry *timelib_timezone_builtin_identifiers_list(int *count) +{ + *count = timezonedb_system->index_size; + return timezonedb_system->index; +} + +int timelib_timezone_id_is_valid(char *timezone, const timelib_tzdb *tzdb) +{ + char fname[PATH_MAX]; + + if (strstr(timezone, "..") != NULL) { + return 0; + } + + snprintf(fname, sizeof fname, ZONEINFO_PREFIX "/%s", timezone); + + return access(fname, R_OK) == 0 ? 1 : 0; +} + +timelib_tzinfo *timelib_parse_tzfile(char *timezone, const timelib_tzdb *tzdb) +{ + char *tzf, *orig; + timelib_tzinfo *tmp; + size_t len; + + orig = map_tzfile(timezone, &len); + if (orig == NULL) { + return NULL; + } + + tmp = timelib_tzinfo_ctor(timezone); + + tzf = orig + 20; + read_header(&tzf, tmp); + read_transistions(&tzf, tmp); + read_types(&tzf, tmp); + + munmap(orig, len); + + return tmp; +} +#else /* !HAVE_SYSTEM_TZDATA */ + static int seek_to_tz_position(const unsigned char **tzf, char *timezone, const timelib_tzdb *tzdb) { int left = 0, right = tzdb->index_size - 1; @@ -258,6 +460,7 @@ return tmp; } +#endif static ttinfo* fetch_timezone_offset(timelib_tzinfo *tz, timelib_sll ts, timelib_sll *transition_time) { Index: ext/date/lib/timelib.m4 =================================================================== RCS file: /repository/php-src/ext/date/lib/timelib.m4,v retrieving revision 1.4 diff -u -r1.4 timelib.m4 --- ext/date/lib/timelib.m4 3 Jul 2005 23:30:52 -0000 1.4 +++ ext/date/lib/timelib.m4 10 Jan 2008 11:42:16 -0000 @@ -78,3 +78,17 @@ dnl Check for strtoll, atoll AC_CHECK_FUNCS(strtoll atoll strftime) + +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 +
