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Showing content from https://github.com/openresty/xss-nginx-module/commit/4349b2a9ad0ee63e35fdb1c24a3f2363904a86b2 below:

now we use "signed char" explicitly instead of the vague "char" type. · openresty/xss-nginx-module@4349b2a · GitHub

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lines changed Original file line number Diff line number Diff line change

@@ -192,7 +192,7 @@ ngx_http_xss_header_filter(ngx_http_request_t *r)

 192 192

callback.data = p;

 193 193

callback.len = dst - p;

 194 194 195 -

if (ngx_http_xss_test_callback((char *) callback.data, callback.len)

 195 +

if (ngx_http_xss_test_callback(callback.data, callback.len)

 196 196

!= NGX_OK)

 197 197

{

 198 198

ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,

 Original file line number Diff line number Diff line change

@@ -18,19 +18,21 @@ static const int javascript_en_main = 1;

 18 18 19 19

#line 8 "src/ngx_http_xss_util.rl"

 20 20 21 -

ngx_int_t ngx_http_xss_test_callback(char *data, size_t len)

 21 +

ngx_int_t ngx_http_xss_test_callback(u_char *data, size_t len)

 22 22

{

 23 -

char *p = data;

 24 -

char *pe = data + len;

 23 +

signed char *p = (signed char *) data;

 24 +

signed char *pe;

 25 25

int cs;

 26 26 27 +

pe = p + len;

 28 + 27 29 28 -

#line 29 "src/ngx_http_xss_util.c"

 30 +

#line 31 "src/ngx_http_xss_util.c"

 29 31

{

 30 32

cs = javascript_start;

 31 33

}

 32 34 33 -

#line 34 "src/ngx_http_xss_util.c"

 35 +

#line 36 "src/ngx_http_xss_util.c"

 34 36

{

 35 37

if ( p == pe )

 36 38

goto _test_eof;

@@ -126,13 +128,13 @@ case 5:

 126 128

_out: {}

 127 129

}

 128 130 129 -

#line 27 "src/ngx_http_xss_util.rl"

 131 +

#line 29 "src/ngx_http_xss_util.rl"

 130 132 131 133 132 134

if (cs <

 133 -

#line 134 "src/ngx_http_xss_util.c"

 135 +

#line 136 "src/ngx_http_xss_util.c"

 134 136

6

 135 -

#line 29 "src/ngx_http_xss_util.rl"

 137 +

#line 31 "src/ngx_http_xss_util.rl"

 136 138

|| p != pe) {

 137 139

return NGX_DECLINED;

 138 140

}

 Original file line number Diff line number Diff line change

@@ -14,7 +14,7 @@

 14 14

#endif

 15 15 16 16 17 -

ngx_int_t ngx_http_xss_test_callback(char *data, size_t len);

 17 +

ngx_int_t ngx_http_xss_test_callback(u_char *data, size_t len);

 18 18 19 19 20 20

#endif /* NGX_HTTP_XSS_UTIL_H */

 Original file line number Diff line number Diff line change

@@ -6,12 +6,14 @@

 6 6

%% machine javascript;

 7 7

%% write data;

 8 8 9 -

ngx_int_t ngx_http_xss_test_callback(char *data, size_t len)

 9 +

ngx_int_t ngx_http_xss_test_callback(u_char *data, size_t len)

 10 10

{

 11 -

char *p = data;

 12 -

char *pe = data + len;

 11 +

signed char *p = (signed char *) data;

 12 +

signed char *pe;

 13 13

int cs;

 14 14 15 +

pe = p + len;

 16 + 15 17

%%{

 16 18

identifier = [$A-Za-z_] [$A-Za-z0-9_]*;

 17 19 Original file line number Diff line number Diff line change

@@ -14,7 +14,7 @@ version=$1

 14 14

force=$2

 15 15 16 16

ngx-build $force $version \

 17 -

--with-cc-opt="-O3" \

 17 +

--with-cc-opt="-O3 -funsigned-char" \

 18 18

--without-mail_pop3_module \

 19 19

--without-mail_imap_module \

 20 20

--without-mail_smtp_module \

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