SCO OpenServer

fuword(D3oddi)

fuword -- get one 32-bit word from user data space

Synopsis

int fuword(unsigned int src);

Description

The fuword routine retrieves (fetches) one 32-bit word from the user's data space.

Arguments

src: address in user space from which the word is copied.

Return value

The value of the retrieved 32-bit word is returned. If an error occurs, -1 is returned and you should set u.u_error to EFAULT. Note that fuword can cause a page fault.

Usage

If any chance exists that a -1 may be contained in the data that you are receiving from user space, use copyin(D3oddi) instead of fubyte (or cpass). A -1 in the data is usually interpreted as an error condition.

Context and synchronization

User context.

Hardware applicability

All

Version applicability

oddi: 1, 2, 2mp, 3, 3mp, 4, 4mp, 5, 5mp, 6, 6mp

SVR5 DDI compatibility

DDI does not support this function. Replace calls to fuword( ) with calls to the copyin(D3) function.

References

copyin(D3oddi), fubyte(D3oddi), cpass(D3oddi)

``Data, copying'' in HDK Technical Reference