From dd79b1d8f8ae90cd34d5d0b307048c8aaea47d23 Mon Sep 17 00:00:00 2001 From: Thomas Schwinge Date: Tue, 25 Jul 2006 14:06:14 +0000 Subject: 2006-07-25 Stefan Siegl * pq.c (packet_write): Only dereference AMOUNT if it is not the null pointer and document the change. * pq.h (packet_write): Document the change. --- libpipe/pq.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'libpipe/pq.c') diff --git a/libpipe/pq.c b/libpipe/pq.c index ce49a54c..afdda051 100644 --- a/libpipe/pq.c +++ b/libpipe/pq.c @@ -1,6 +1,7 @@ /* Packet queues - Copyright (C) 1995, 1996, 1998, 1999, 2002 Free Software Foundation, Inc. + Copyright (C) 1995, 1996, 1998, 1999, 2002, 2006 + Free Software Foundation, Inc. Written by Miles Bader @@ -329,7 +330,7 @@ packet_read_ports (struct packet *packet, } /* Append the bytes in DATA, of length DATA_LEN, to what's already in PACKET, - and return the amount appended in AMOUNT. */ + and return the amount appended in AMOUNT if that's not the null pointer. */ error_t packet_write (struct packet *packet, char *data, size_t data_len, size_t *amount) @@ -342,7 +343,8 @@ packet_write (struct packet *packet, /* Add the new data. */ bcopy (data, packet->buf_end, data_len); packet->buf_end += data_len; - *amount = data_len; + if (amount != NULL) + *amount = data_len; return 0; } -- cgit v1.2.3