NAME
memfrob - frobnicate (encrypt) a memory area SYNOPSIS
#define GNUSOURCE /* See featuretestmacros(7) */
#include
void *memfrob(void *s, sizet 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 For an explanation of the terms used in this section, see attributes(7). ┌──────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├──────────┼───────────────┼─────────┤
│memfrob() │ Thread safety │ MT-Safe │ └──────────┴───────────────┴─────────┘ CONFORMING TO The memfrob() function is unique to the GNU C Library. SEE ALSO strfry(3) COLOPHON
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GNU 2010-09-10 MEMFROB(3)