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MAVLink log: protect against empty field

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This commit is contained in:
Lorenz Meier
2015-10-25 14:54:25 +01:00
parent 1bfde3823c
commit 86eb011f7d
1 changed files with 8 additions and 0 deletions
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src/modules/systemlib/mavlink_log.c
+8
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@@ -101,6 +101,10 @@ __EXPORT int mavlink_logbuffer_read(struct mavlink_logbuffer *lb, struct mavlink
__EXPORT void mavlink_logbuffer_vasprintf(struct mavlink_logbuffer *lb, int severity, const char *fmt, ...)
{
if (!fmt) {
return;
}
va_list ap;
va_start(ap, fmt);
int end = (lb->start + lb->count) % lb->size;
@@ -119,6 +123,10 @@ __EXPORT void mavlink_logbuffer_vasprintf(struct mavlink_logbuffer *lb, int seve
__EXPORT void mavlink_vasprintf(int _fd, int severity, const char *fmt, ...)
{
if (!fmt) {
return;
}
va_list ap;
va_start(ap, fmt);
char text[MAVLINK_LOG_MAXLEN + 1];