plan9fox/sys/man/2/getuser
cinap_lenrek dced7255ec libc: re-implement getuser() by stating /proc/$pid/status
The idea is to avoid the magic files that contain
per process information in devcons when possible.
It will make it easier to deprecate them in the future.
2020-12-23 02:31:28 +01:00

41 lines
689 B
Plaintext

.TH GETUSER 2
.SH NAME
getuser, sysname \- get user or system name
.SH SYNOPSIS
.B #include <u.h>
.br
.B #include <libc.h>
.PP
.B
char* getuser(void)
.PP
.B
char* sysname(void)
.SH DESCRIPTION
.I Getuser
returns a pointer to static data which contains the
null-terminated
name of the user who
owns the current process.
.I Getuser
stats the file
.BI /proc/ pid /status
to find the name.
.PP
.I Sysname
reads the file
.BR /dev/sysname ,
which contains the name of the machine.
Unlike
.IR getuser ,
.I sysname
caches the string, reading the file only once.
.SH SOURCE
.B /sys/src/libc/9sys/getuser.c
.br
.B /sys/src/libc/9sys/sysname.c
.SH SEE ALSO
.IR intro (2),
.IR proc (3),
.IR cons (3)