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am f861bc5c: Merge "Don\'t search off the end of the index for bad Olson ids."

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* commit 'f861bc5cc3e17322e49f89deea61f278aaefbe76':
  Don't search off the end of the index for bad Olson ids.
This commit is contained in:
Elliott Hughes
2013-03-14 15:17:09 -07:00
committed by Android Git Automerger
parent 2f44c05bc5 f861bc5cc3
commit 2e7b8d6399
3 changed files with 52 additions and 1 deletions
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8
libc/tzcode/localtime.c
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@@ -2305,7 +2305,13 @@ static int __bionic_open_tzdata_path(const char* path, const char* olson_id, int
static const size_t NAME_LENGTH = 40;
unsigned char buf[NAME_LENGTH + 3 * sizeof(int32_t)];
while (TEMP_FAILURE_RETRY(read(fd, buf, sizeof(buf))) == (ssize_t) sizeof(buf)) {
size_t id_count = (ntohl(header.data_offset) - ntohl(header.index_offset)) / sizeof(buf);
for (size_t i = 0; i < id_count; ++i) {
if (TEMP_FAILURE_RETRY(read(fd, buf, sizeof(buf))) != (ssize_t) sizeof(buf)) {
break;
}
char this_id[NAME_LENGTH + 1];
memcpy(this_id, buf, NAME_LENGTH);
this_id[NAME_LENGTH] = '\0';