Add packet_read_line_gently() to enable reading a line without dying on
EOF.
Signed-off-by: Ben Peart <benpeart@xxxxxxxxxxxxx>
---
pkt-line.c | 12 ++++++++++++
pkt-line.h | 11 +++++++++++
2 files changed, 23 insertions(+)
diff --git a/pkt-line.c b/pkt-line.c
index 6f05b1a4a8..7db9119573 100644
--- a/pkt-line.c
+++ b/pkt-line.c
@@ -323,6 +323,18 @@ char *packet_read_line(int fd, int *len_p)
return packet_read_line_generic(fd, NULL, NULL, len_p);
}
+int packet_read_line_gently(int fd, int *dst_len, char **dst_line)
+{
+ int len = packet_read(fd, NULL, NULL,
+ packet_buffer, sizeof(packet_buffer),
+ PACKET_READ_CHOMP_NEWLINE|PACKET_READ_GENTLE_ON_EOF);
+ if (dst_len)
+ *dst_len = len;
+ if (dst_line)
+ *dst_line = (len > 0) ? packet_buffer : NULL;
+ return len;
+}
+
char *packet_read_line_buf(char **src, size_t *src_len, int *dst_len)
{
return packet_read_line_generic(-1, src, src_len, dst_len);
diff --git a/pkt-line.h b/pkt-line.h
index 18eac64830..66ef610fc4 100644
--- a/pkt-line.h
+++ b/pkt-line.h
@@ -74,6 +74,17 @@ int packet_read(int fd, char **src_buffer, size_t *src_len, char
char *packet_read_line(int fd, int *size);
/*
+ * Convenience wrapper for packet_read that sets the PACKET_READ_GENTLE_ON_EOF
+ * and CHOMP_NEWLINE options. The return value specifies the number of bytes
+ * read into the buffer or -1 on truncated input. If the *dst_line parameter
+ * is not NULL it will return NULL for a flush packet or when the number of
+ * bytes copied is zero 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.
+ */
+int packet_read_line_gently(int fd, int *size, char **dst_line);
+
+/*
* Same as packet_read_line, but read from a buf rather than a descriptor;
* see packet_read for details on how src_* is used.
*/
--
2.12.2.gvfs.2.20.g3624a68d62.dirty