mprotect man page on OpenDarwin

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MPROTECT(2)		    BSD System Calls Manual		   MPROTECT(2)

NAME
     mprotect — control the protection of pages

SYNOPSIS
     #include <sys/types.h>
     #include <sys/mman.h>

     int
     mprotect(caddr_t addr, size_t len, int prot);

DESCRIPTION
     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.

RETURN VALUES
     Upon successful completion, a value of 0 is returned.  Otherwise, a value
     of -1 is returned and errno is set to indicate the error.

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

HISTORY
     The mprotect() function first appeared in 4.4BSD.

BSD				 June 9, 1993				   BSD
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