table of contents
MEMFROB(3) | Linux Programmer's Manual | MEMFROB(3) |
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¶
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¶
COLOPHON¶
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
2017-03-13 | GNU |