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Compiling with -O3 triggers the following warning with GCC 8.3: driver.c: In function ‘dlz_findzonedb’: driver.c:191:29: warning: ‘%u’ directive output may be truncated writing between 1 and 5 bytes into a region of size between 0 and 99 [-Wformat-truncation=] snprintf(buffer, size, "%s#%u", addr_buf, port); ^~ driver.c:191:25: note: directive argument in the range [0, 65535] snprintf(buffer, size, "%s#%u", addr_buf, port); ^~~~~~~ driver.c:191:2: note: ‘snprintf’ output between 3 and 106 bytes into a destination of size 100 snprintf(buffer, size, "%s#%u", addr_buf, port); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Increase the size of the relevant array to prevent this warning from being triggered.
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