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Name

memfrob - frobnicate (encrypt) a memory area

Synopsis


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

Description

The memfrob() function encrypts 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 encrypted 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.

Return Value

The memfrob() function returns a pointer to the encrypted memory area.

Attributes

Multithreading (see pthreads(7) )

The memfrob() function is thread-safe.

Conforming to

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

See Also

strfry(3)

Colophon

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