-/*
- * Functions that handle communication with a Citadel Server
- *
- * Copyright (c) 1987-2018 by the citadel.org team
- *
- * This program is open source software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 3.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
+//
+// Functions that handle communication with a Citadel Server
+//
+// Copyright (c) 1987-2018 by the citadel.org team
+//
+// This program is open source software. It runs great on the
+// Linux operating system (and probably elsewhere). You can use,
+// copy, and run it under the terms of the GNU General Public
+// License version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
#include "webcit.h"
pthread_mutex_t cpool_mutex = PTHREAD_MUTEX_INITIALIZER; // Lock it before modifying
+/*
+ * Read a specific number of bytes of binary data from the Citadel server.
+ * Returns the number of bytes read or -1 for error.
+ */
+int ctdl_read_binary(struct ctdlsession *ctdl, char *buf, int bytes_requested)
+{
+ int bytes_read = 0;
+ int c = 0;
+
+ while (bytes_read < bytes_requested) {
+ c = read(ctdl->sock, &buf[bytes_read], bytes_requested-bytes_read);
+ if (c <= 0) {
+ syslog(LOG_DEBUG, "Socket error or zero-length read");
+ return (-1);
+ }
+ bytes_read += c;
+ }
+ return (bytes_read);
+}
+
+
/*
* Read a newline-terminated line of text from the Citadel server.
- * Implemented in terms of client_read() and is therefore transparent...
* Returns the string length or -1 for error.
*/
int ctdl_readline(struct ctdlsession *ctdl, char *buf, int maxbytes)