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Command: getusershell | Section: 3 | Source: OpenBSD | File: getusershell.3
GETUSERSHELL(3) FreeBSD Library Functions Manual GETUSERSHELL(3)
NAME
getusershell, setusershell, endusershell - get legal user shells
SYNOPSIS
#include <unistd.h>
char *
getusershell(void);
void
setusershell(void);
void
endusershell(void);
DESCRIPTION
The getusershell() function returns a pointer to a legal user shell as
defined by the system manager in the file /etc/shells. If /etc/shells is
unreadable or does not exist, getusershell() behaves as if only /bin/sh,
/bin/csh and /bin/ksh were listed in the file.
The getusershell() function reads the next line (opening the file if
necessary); setusershell() rewinds the file; endusershell() closes it.
FILES
/etc/shells
DIAGNOSTICS
The routine getusershell() returns a null pointer on EOF.
SEE ALSO
shells(5)
HISTORY
The getusershell() function appeared in 4.3BSD.
BUGS
The getusershell() function leaves its result in an internal static
object and returns a pointer to that object. Subsequent calls to
getusershell() will modify the same object.
FreeBSD 14.1-RELEASE-p8 June 5, 2013 FreeBSD 14.1-RELEASE-p8