Manual Pages  — GETOSRELDATE

getosreldate – get the value of __FreeBSD_version

LIBRARY SYNOPSIS DESCRIPTION RETURN VALUES ENVIRONMENT EXAMPLES ERRORS SEE ALSO HISTORY

Standard C Library (libc, -lc)

#include <unistd.h>

int
getosreldate(void);

Upon successful completion, getosreldate() returns the value requested; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

OSVERSION
	If the environment variable OSVERSION is set, it will override the getosreldate() return value.

An example can be found in /usr/share/examples/FreeBSD_version.

The Porter's Handbook,

The getosreldate() function appeared in FreeBSD 2.0 .