Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

mprotect(2) [opendarwin man page]

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

Check Out this Related Man Page

MINHERIT(2)						      BSD System Calls Manual						       MINHERIT(2)

NAME
minherit -- control the inheritance of pages SYNOPSIS
#include <sys/types.h> #include <sys/mman.h> int minherit(caddr_t addr, size_t len, int inherit); DESCRIPTION
The minherit() system call changes the specified pages to have the inheritance characteristic inherit, which can be set to VM_INHERIT_NONE, VM_INHERIT_COPY, or VM_INHERIT_SHARE. Not all implementations will guarantee that the inheritance characteristic can be set on a page basis; the granularity of changes may be as large as an entire region. RETURN VALUES
The minherit() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indi- cate the error. ERRORS
The minherit() system call will fail if: [EINVAL] The virtual address range specified by the addr and len arguments is not valid. [EACCES] The flags specified by the inherit argument were not valid for the pages specified by the addr and len arguments. SEE ALSO
madvise(2), mincore(2), mprotect(2), msync(2), munmap(2) HISTORY
The minherit() function first appeared in OpenBSD. BSD
June 9, 1993 BSD

Featured Tech Videos