null character


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null character

[′nəl ‚kar·ik·tər]
(computer science)
A control character used as a filler in data processing; may be inserted or removed from a sequence of characters without affecting the meaning of the sequence, but may affect format or control equipment.
References in periodicals archive ?
Like its human equivalent, "uh-huh," the null character lets the sending computer know that the receiving computer is still connected and receiving the data.
EOF) if (isletter(c)) [ do [ if (size > 1) [ *p++ = c; size--; ] c = getchar(); ] while (isletter(c)); *p = ' 0'; return p - buf; ] return EOF; ] size is compared with 1 to ensure that there is room for the terminating null character.
By preceding the client login message with NULL characters an attacker can avoid MS-SQL's built in audit tools.