xar: Switch from int to size_t API (#2195)

Most of the functions already use size_t for sizes. Do the same for
xml_data. The libraries expat and libxml2 do not support strings larger
than 2 GB (limit is less than this) but it fixes one last Visual Studio
compiler warning which I missed previously.

diff --git a/libarchive/archive_read_support_format_xar.c b/libarchive/archive_read_support_format_xar.c
index 822ccad71fed622fe39c0385cec7379eb84cbf0d..21cc7d8bb3bed9142e3c8e652cf37e9dc03f8755 100644 (file)
--- a/libarchive/archive_read_support_format_xar.c
+++ b/libarchive/archive_read_support_format_xar.c
@@ -416,7 +416,7 @@ static void unknowntag_end(struct xar *, const char *);
 static int     xml_start(struct archive_read *,
     const char *, struct xmlattr_list *);
 static void    xml_end(void *, const char *);
-static void    xml_data(void *, const char *, int);
+static void    xml_data(void *, const char *, size_t);
 static int     xml_parse_file_flags(struct xar *, const char *);
 static int     xml_parse_file_ext2(struct xar *, const char *);
 #if defined(HAVE_LIBXML_XMLREADER_H)
@@ -2674,7 +2674,7 @@ is_string(const char *known, const char *data, size_t len)
 }
 
 static void
-xml_data(void *userData, const char *s, int len)
+xml_data(void *userData, const char *s, size_t len)
 {
        struct archive_read *a;
        struct xar *xar;
@@ -3280,7 +3280,7 @@ expat_data_cb(void *userData, const XML_Char *s, int len)
 {
        struct expat_userData *ud = (struct expat_userData *)userData;
 
-       xml_data(ud->archive, s, len);
+       xml_data(ud->archive, s, (size_t)len);
 }
 
 static int