GETUSER(3)

NAME
getuser, sysname - get user or system name

SYNOPSIS
#include <u.h>
#include <libc.h>

char*    getuser(void)

char*    sysname(void)

DESCRIPTION
Getuser returns a pointer to static data which contains the null-terminated name of the user who owns the current process. Getuser calls getuid(2) and then reads /etc/passwd to find the corresponding name.

Sysname returns a pointer to static data which contains the name of the machine on which the current process is running. Sysname looks first for an environment variable $sysname. If there is no such variable, sysname calls gethostname(2) and truncates the returned name at the first dot. If gethostname fails, sysname returns the default name

Unlike getuser, sysname caches the string, deriving the host name only once.

SOURCE
/src/lib9/getuser.c
/src/lib9/sysname.c