Commit:    8ca457f64dadff756831bc61abf479a4159b2072
Author:    Anatoliy Belsky <a...@php.net>         Thu, 7 Jun 2012 16:27:47 +0200
Parents:   e8838926644cfb9a0ec9525a5b519da15b3e022a
Branches:  PHP-5.3 PHP-5.4 master

Link:       
http://git.php.net/?p=php-src.git;a=commitdiff;h=8ca457f64dadff756831bc61abf479a4159b2072

Log:
fixed bc break related to #57905

Bugs:
https://bugs.php.net/57905

Changed paths:
  M  ext/zip/lib/zip_open.c


Diff:
diff --git a/ext/zip/lib/zip_open.c b/ext/zip/lib/zip_open.c
index 2f56881..a348d98 100644
--- a/ext/zip/lib/zip_open.c
+++ b/ext/zip/lib/zip_open.c
@@ -206,7 +206,9 @@ _zip_readcdir(FILE *fp, off_t buf_offset, unsigned char 
*buf, unsigned char *eoc
     cd->comment = NULL;
     cd->comment_len = _zip_read2(&cdp);
 
-    if (((zip_uint64_t)cd->offset)+cd->size > buf_offset + (eocd-buf)) {
+       /* without checking the ZIP_CHECKCONS flag we'll not able even to open 
inconsistent
+          archives at this place, which would break bc in PHP */
+    if ((ZIP_CHECKCONS == (flags & ZIP_CHECKCONS)) && 
((zip_uint64_t)cd->offset)+cd->size > buf_offset + (eocd-buf)) {
        /* cdir spans past EOCD record */
        _zip_error_set(error, ZIP_ER_INCONS, 0);
        cd->nentry = 0;
@@ -237,7 +239,13 @@ _zip_readcdir(FILE *fp, off_t buf_offset, unsigned char 
*buf, unsigned char *eoc
        }
     }
 
-    if (cd->offset >= buf_offset) {
+       /* the first if branch goes the old way of libzip 0.9 so we don't loose 
+          the bc for reading inconsistent files */
+       if ((ZIP_CHECKCONS != (flags & ZIP_CHECKCONS)) && cd->size < (unsigned 
int)(eocd-buf)) {
+       cdp = eocd - cd->size;
+       bufp = &cdp;
+       }
+       else if (cd->offset >= buf_offset) {
        /* if buffer already read in, use it */
        cdp = buf + (cd->offset - buf_offset);
        bufp = &cdp;


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