MFB51: Check 2nd parameter of tempnam() against path components.

diff --git a/ext/standard/file.c b/ext/standard/file.c
index dc069ff6ee0061dcd54df719dddabe9b88000689..042e9caf83ce00f55b82ff3f60e96d1ef9282873 100644 (file)
--- a/ext/standard/file.c
+++ b/ext/standard/file.c
@@ -800,8 +800,9 @@ PHP_FUNCTION(tempnam)
        zval **arg1, **arg2;
        char *d;
        char *opened_path;
-       char p[64];
+       char *p;
        int fd;
+       size_t p_len;
 
        if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &arg1, &arg2) == FAILURE) {
                WRONG_PARAM_COUNT;
@@ -814,7 +815,11 @@ PHP_FUNCTION(tempnam)
        }
        
        d = estrndup(Z_STRVAL_PP(arg1), Z_STRLEN_PP(arg1));
-       strlcpy(p, Z_STRVAL_PP(arg2), sizeof(p));
+
+       php_basename(Z_STRVAL_PP(arg2), Z_STRLEN_PP(arg2), NULL, 0, &p, &p_len TSRMLS_CC);
+       if (p_len > 64) {
+               p[63] = '\0';
+       }
 
        if ((fd = php_open_temporary_fd(d, p, &opened_path TSRMLS_CC)) >= 0) {
                close(fd);
@@ -825,6 +830,7 @@ PHP_FUNCTION(tempnam)
        } else {
                RETVAL_FALSE;
        }
+       efree(p);
        efree(d);
 }
 /* }}} */