1 files changed, 33 insertions, 0 deletions
diff --git a/ext/standard/php_fopen_wrapper.c b/ext/standard/php_fopen_wrapper.c
index 8340da42a8..2a7a2793c7 100644
--- a/ext/standard/php_fopen_wrapper.c
+++ b/ext/standard/php_fopen_wrapper.c
@@ -257,6 +257,39 @@ php_stream * php_stream_url_wrap_php(php_stream_wrapper *wrapper, char *path, ch
 		} else {
 			fd = dup(STDERR_FILENO);
 		}
+	} else if (!strncasecmp(path, "fd/", 3)) {
+		char	   *start,
+				   *end;
+		long	   fildes_ori;
+		int		   dtablesize;
+
+		start = &path[3];
+		fildes_ori = strtol(start, &end, 10);
+		if (end == start || (*end != '\0' && *end != '/')) {
+			php_stream_wrapper_log_error(wrapper, options TSRMLS_CC,
+				"php://fd/ stream must be specified in the form php://fd/<orig fd>");
+			return NULL;
+		}
+
+#if HAVE_UNISTD_H
+		dtablesize = getdtablesize();
+#else
+		dtablesize = INT_MAX;
+#endif
+
+		if (fildes_ori < 0 || fildes_ori >= dtablesize) {
+			php_stream_wrapper_log_error(wrapper, options TSRMLS_CC,
+				"The file descriptors must be non-negative numbers smaller than %d", dtablesize);
+			return NULL;
+		}
+		
+		fd = dup(fildes_ori);
+		if (fd == -1) {
+			php_stream_wrapper_log_error(wrapper, options TSRMLS_CC,
+				"Error duping file descriptor %d; possibly it doesn't exist: "
+				"[%d]: %s", fildes_ori, errno, strerror(errno));
+			return NULL;
+		}
 	} else if (!strncasecmp(path, "filter/", 7)) {
 		/* Save time/memory when chain isn't specified */
 		if (strchr(mode, 'r') || strchr(mode, '+')) {