Fix SIGSEGV when resizing report*() buffer.

Reported (with a different patch suggestion) by
Christian Herdtweck <christian.herdtweck@intra2net.com>.

Note that vsnprintf() calls va_arg(), and depending on operating system,
compiler, configuration, this will invalidate the va_list argument
pointer, so that va_start has to be called again before a subsequent
vsnprintf(). However, it is better to do away with the loop and the
trial-and-error, and leverage the return value of vsnprintf instead for
a direct one-off resizing, whilst taking into account that on SUSv2
systems, the return value can be useless if the size argument to
vsnprintf is 0.

0 files changed, 0 insertions, 0 deletions