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Merge branch 'PHP-7.3' into PHP-7.4

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* PHP-7.3:
  NEWS
  Fix Bug #79296 ZipArchive::open fails on empty file
This commit is contained in:
Remi Collet 2020-03-20 11:16:38 +01:00
commit 98687abb1d
1 changed files with 15 additions and 0 deletions
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15
ext/zip/php_zip.c
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@ -1472,6 +1472,21 @@ static ZIPARCHIVE_METHOD(open)
ze_obj->filename = NULL;
}
#if LIBZIP_VERSION_MAJOR > 1 || LIBZIP_VERSION_MAJOR == 1 && LIBZIP_VERSION_MINOR >= 6
/* reduce BC break introduce in libzip 1.6.0
"Do not accept empty files as valid zip archives any longer" */
/* open for write without option to empty the archive */
if ((flags & (ZIP_TRUNCATE | ZIP_RDONLY)) == 0) {
zend_stat_t st;
/* exists and is empty */
if (VCWD_STAT(resolved_path, &st) == 0 && st.st_size == 0) {
flags |= ZIP_TRUNCATE;
}
}
#endif
intern = zip_open(resolved_path, flags, &err);
if (!intern || err) {
efree(resolved_path);