SCO OpenServer

fubyte(D3oddi)

fubyte -- get a character from user data space

Synopsis

int fubyte(unsigned char src);

Description

The fubyte routine retrieves (fetches) one character from the user's data space.

Arguments

src: address in the user's data from which to copy the byte.

Return values

The value of the retrieved byte is returned. If -1 is received, then an error occurred and u.u_error should be set to EFAULT. Note that fubyte( ) can cause a page fault.

Usage

If you are fetching data from u.u_base, consider using the cpass(D3oddi) function which updates the u.u_count, u.u_offset, and u.u_base members for you and provides error handling through u.u_error.

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

This function is not supported in DDI. Replace calls to fubyte( ) with calls to copyin(D3).

References

copyin(D3oddi), cpass(D3oddi), fuword(D3oddi)

``Data, copying'' in HDK Technical Reference