void packet_buf_write(struct strbuf *buf, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
/*
- * Read a packetized line from the descriptor into the buffer, which must be at
- * least size bytes long. The return value specifies the number of bytes read
- * into the buffer.
+ * Read a packetized line into the buffer, which must be at least size bytes
+ * long. The return value specifies the number of bytes read into the buffer.
+ *
+ * If src_buffer is not NULL (and nor is *src_buffer), it should point to a
+ * buffer containing the packet data to parse, of at least *src_len bytes.
+ * After the function returns, src_buf will be incremented and src_len
+ * decremented by the number of bytes consumed.
+ *
+ * If src_buffer (or *src_buffer) is NULL, then data is read from the
+ * descriptor "fd".
*
* If options does not contain PACKET_READ_GENTLE_ON_EOF, we will die under any
* of the following conditions:
* If options does contain PACKET_READ_GENTLE_ON_EOF, we will not die on
* condition 4 (truncated input), but instead return -1. However, we will still
* die for the other 3 conditions.
+ *
+ * If options contains PACKET_READ_CHOMP_NEWLINE, a trailing newline (if
+ * present) is removed from the buffer before returning.
*/
#define PACKET_READ_GENTLE_ON_EOF (1u<<0)
-int packet_read(int fd, char *buffer, unsigned size, int options);
+#define PACKET_READ_CHOMP_NEWLINE (1u<<1)
+int packet_read(int fd, char **src_buffer, size_t *src_len, char
+ *buffer, unsigned size, int options);
+
+/*
+ * Convenience wrapper for packet_read that is not gentle, and sets the
+ * CHOMP_NEWLINE option. The return value is NULL for a flush packet,
+ * and otherwise points to a static buffer (that may be overwritten by
+ * subsequent calls). If the size parameter is not NULL, the length of the
+ * packet is written to it.
+ */
+char *packet_read_line(int fd, int *size);
-/* Historical convenience wrapper for packet_read that sets no options */
-int packet_read_line(int fd, char *buffer, unsigned size);
+/*
+ * Same as packet_read_line, but read from a buf rather than a descriptor;
+ * see packet_read for details on how src_* is used.
+ */
+char *packet_read_line_buf(char **src_buf, size_t *src_len, int *size);
-int packet_get_line(struct strbuf *out, char **src_buf, size_t *src_len);
+#define DEFAULT_PACKET_MAX 1000
+#define LARGE_PACKET_MAX 65520
+extern char packet_buffer[LARGE_PACKET_MAX];
#endif