NAME    [Toc]    [Back]

     mprotect - control the protection of pages

LIBRARY    [Toc]    [Back]

     Standard C Library (libc, -lc)

SYNOPSIS    [Toc]    [Back]

     #include <sys/mman.h>

     int
     mprotect(void *addr, size_t len, int prot);

DESCRIPTION    [Toc]    [Back]

     The mprotect() system call changes the specified pages to have protection
     prot.  Not all implementations will guarantee protection on a page basis;
     the granularity of protection changes may be as large as an entire
     region.

SEE ALSO    [Toc]    [Back]

     madvise(2), mincore(2), msync(2), munmap(2)

HISTORY    [Toc]    [Back]

     The mprotect() function first appeared in 4.4BSD.

BSD                              June 9, 1993                              BSD