call: Fix buffer overflow.

When sending files of 1GB or larger, size_buffer was not large enough to
hold the number including a trailing \0.

This also fixes the following warning:

gcc -DHAVE_CONFIG_H -I. -I..     -g -O2 -Wall -MT yapp.o -MD -MP -MF .deps/yapp.Tpo -c -o yapp.o yapp.c
yapp.c: In function ‘yapp_upload_data’:
yapp.c:200:24: warning: ‘%ld’ directive writing between 1 and 11 bytes into a region of size 10 [-Wformat-overflow=]
  sprintf(size_buffer, "%ld", length);
                        ^~~
yapp.c:200:23: note: directive argument in the range [-2147483648, 2147483647]
  sprintf(size_buffer, "%ld", length);
                       ^~~~~
yapp.c:200:2: note: ‘sprintf’ output between 2 and 12 bytes into a destination of size 10
  sprintf(size_buffer, "%ld", length);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/call/yapp.c b/call/yapp.c
index 8260ab0..cc61e90 100644
--- a/call/yapp.c
+++ b/call/yapp.c
@@ -191,7 +191,7 @@ static void Send_CN(char *reason)
 static void Send_HD(char *filename, long length)
 {
 	char buffer[257];
-	char size_buffer[10];
+	char size_buffer[12];
 	int len_filename;
 	int len_size;
 	int len;