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Force nul-termination of strings after vsnprintf().
[tinc]
/
src
/
protocol.c
diff --git
a/src/protocol.c
b/src/protocol.c
index
5b8b7ba
..
fa169f3
100644
(file)
--- a/
src/protocol.c
+++ b/
src/protocol.c
@@
-75,10
+75,11
@@
bool send_request(connection_t *c, const char *format, ...) {
input buffer anyway */
va_start(args, format);
input buffer anyway */
va_start(args, format);
- len = vsnprintf(buffer, MAXBUFSIZE, format, args);
+ len = vsnprintf(buffer, sizeof buffer, format, args);
+ buffer[sizeof buffer - 1] = 0;
va_end(args);
va_end(args);
- if(len < 0 || len >
MAXBUFSIZE
- 1) {
+ if(len < 0 || len >
sizeof buffer
- 1) {
logger(LOG_ERR, "Output buffer overflow while sending request to %s (%s)",
c->name, c->hostname);
return false;
logger(LOG_ERR, "Output buffer overflow while sending request to %s (%s)",
c->name, c->hostname);
return false;