memfrob - Online Linux Manual PageSection : 3
Updated : 2022-12-15
Source : Linux man-pages 6.03

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NAMEmemfrob − frobnicate (obfuscate) a memory area

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LIBRARYStandard C library (libc, −lc)

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SYNOPSIS#define _GNU_SOURCE /* See feature_test_macros(7) */ #include <string.h>void *memfrob(void s[.n], size_t n);

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DESCRIPTIONThe memfrob() function obfuscates the first n bytes of the memory area s by exclusive-ORing each character with the number 42. The effect can be reversed by using memfrob() on the obfuscated memory area. Note that this function is not a proper encryption routine as the XOR constant is fixed, and is suitable only for hiding strings.

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RETURN VALUEThe memfrob() function returns a pointer to the obfuscated memory area.

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ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7). InterfaceAttributeValue memfrob() Thread safetyMT-Safe

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STANDARDSThe memfrob() function is unique to the GNU C Library.

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SEE ALSObstring(3), strfry(3) 0

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